Sidelink communication reliability

Abstract

Methods, systems, and devices for wireless communications for improving reliability of sidelink communications are described. In some examples, a user equipment (UE) can map allocated sidelink resources from a logical domain to a physical domain, where the mapped resources can include greater frequency diversity in the physical domain. After mapping, a frequency range of a sidelink control channel or a sidelink data channel can be larger in the physical domain than in the logical domain. In some examples, a sidelink communication can be associated with an aggregation factor representing a number of repetitions of the sidelink communication. In this example, the UE can repeat the sidelink communication multiple times within a contention-based resource pool before receiving feedback in order to improve communication reliability. A first UE can use resource mapping or repetition of a sidelink communication to communicate the sidelink communication with a second UE.

Description

[0001] Cross-references

[0002] This patent application claims the benefits of the following applications: U.S. Provisional Patent Application No. 63 / 043,011, entitled "Sidelink Communication Reliability," filed by Wang et al. on June 23, 2020; and U.S. Patent Application No. 17 / 350,314, entitled "Sidelink Communication Reliability," filed by Wang et al. on June 17, 2021; each of the above applications is assigned to the assignee of this application. Technical Field

[0003] The following text refers to wireless communication, and more specifically, to management-side link communication. Background Technology

[0004] Wireless communication systems are widely deployed to provide various types of communication content such as voice, video, packet data, messaging, and broadcasting. These systems may be able to support communication with multiple users by sharing available system resources (e.g., time, frequency, and power). Examples of such multiple access systems include fourth-generation (4G) systems (e.g., Long Term Evolution (LTE) systems, improved LTE (LTE-A) systems, or LTE-A Pro systems) and fifth-generation (5G) systems (which may be referred to as New Radio (NR) systems). These systems may employ technologies such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), or Discrete Fourier Transform Extended Orthogonal Frequency Division Multiplexing (DFT-S-OFDM). A wireless multiple access communication system may include one or more base stations or one or more network access nodes, each base station or network access node simultaneously supporting communication with multiple communication devices (which may also be referred to as User Equipment (UE)). Summary of the Invention

[0005] A method for wireless communication at a first UE is described. The method can include receiving a configuration associated with mapping of communication resources allocated for a sidelink control channel and a sidelink data channel to corresponding physical communication resources. The method can also include mapping, based on the configuration, first communication resources allocated to the first UE for the sidelink control channel and the sidelink data channel to second communication resources for the sidelink control channel and the sidelink data channel, the first communication resources allocated for the sidelink control channel occupying a first bandwidth, and the second communication resources for the sidelink control channel covering a second bandwidth that is greater than the first bandwidth. The method can also include communicating with a second UE using the second communication resources.

[0006] An apparatus for wireless communication at a first UE is described. The apparatus can include a processor and a memory coupled to the processor. The processor and the memory can be configured to receive a configuration associated with mapping of communication resources allocated for a sidelink control channel and a sidelink data channel to corresponding physical communication resources. The processor and the memory can also be configured to map, based on the configuration, first communication resources allocated to the first UE for the sidelink control channel and the sidelink data channel to second communication resources for the sidelink control channel and the sidelink data channel, the first communication resources allocated for the sidelink control channel occupying a first bandwidth, and the second communication resources for the sidelink control channel covering a second bandwidth that is greater than the first bandwidth. The processor and the memory can also be configured to communicate with a second UE using the second communication resources.

[0007] Another apparatus for wireless communication at a first UE is described. The apparatus can include means for receiving a configuration associated with mapping of communication resources allocated for a sidelink control channel and a sidelink data channel to corresponding physical communication resources. The apparatus can also include means for mapping, based on the configuration, first communication resources allocated to the first UE for the sidelink control channel and the sidelink data channel to second communication resources for the sidelink control channel and the sidelink data channel, the first communication resources allocated for the sidelink control channel occupying a first bandwidth, and the second communication resources for the sidelink control channel covering a second bandwidth that is greater than the first bandwidth. The apparatus can also include means for communicating with a second UE using the second communication resources.

[0008] A non-transitory computer-readable medium storing code for wireless communication at a first UE is described. The code can include instructions executable by a processor to receive a configuration associated with mapping of communication resources allocated for a sidelink control channel and a sidelink data channel to corresponding physical communication resources. The code can also include instructions executable by the processor to map, based on the configuration, first communication resources allocated to the first UE for the sidelink control channel and the sidelink data channel to second communication resources for the sidelink control channel and the sidelink data channel, the first communication resources allocated for the sidelink control channel occupying a first bandwidth and the second communication resources for the sidelink control channel covering a second bandwidth that is greater than the first bandwidth. The code can also include instructions executable by the processor to communicate with a second UE using the second communication resources.

[0009] Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein can further include operations, features, means, or instructions for mapping contiguous symbols of a first stage of sidelink control information (SCI) to a same first frequency range, at least two subsets of the first stage of SCI separated by the frequency range. Examples of the method, apparatuses, and non-transitory computer-readable medium described herein can further include operations, features, means, or instructions for mapping contiguous symbols of a second stage of SCI to a same second frequency range, the second frequency range different from and interleaved with the first frequency range.

[0010] Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein can further include operations, features, means, or instructions for multiplexing the first stage of SCI and the second stage of SCI to cover a bandwidth of the sidelink subchannel.

[0011] Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein can further include operations, features, means, or instructions for multiplexing the first stage of SCI and the second stage of SCI to cover a bandwidth that is greater than the sidelink subchannel.

[0012] Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein can further include operations, features, means, or instructions for mapping contiguous symbols of the first stage of SCI to at least partially different first frequency ranges; and mapping contiguous symbols of the second stage of SCI to at least partially different second frequency ranges interleaved with the respective first frequency ranges.

[0013] Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein can further include operations, features, means, or instructions for multiplexing the first-stage SCI and the second-stage SCI to cover a bandwidth of the sidelink subchannel.

[0014] Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein can further include operations, features, means, or instructions for multiplexing the first-stage SCI and the second-stage SCI to cover a bandwidth that is greater than the sidelink subchannel.

[0015] In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, the second bandwidth includes second communication resources that are different than the first communication resources.

[0016] Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein can further include operations, features, means, or instructions for receiving signaling from a base station, a broadcast UE, or both indicating the configuration.

[0017] A method for wireless communication at a UE is described. The method can include receiving signaling indicating a pool of communication resources, the pool of communication resources including one or more contention-based communication resources for sidelink communications. The method can also include receiving signaling indicating a number of repetitions associated with the pool of communication resources. The method can also include transmitting, using a contention-based communication resource from the pool of communication resources, a repetition of a sidelink communication in each of a number of consecutive time periods associated with the number of repetitions, each repetition of the sidelink communication being unassociated with control information for scheduling.

[0018] An apparatus for wireless communication at a UE is described. The apparatus can include a processor and a memory coupled to the processor. The processor and the memory can be configured to receive signaling indicating a pool of communication resources, the pool of communication resources including one or more contention-based communication resources for sidelink communications. The processor and the memory can also be configured to receive signaling indicating a number of repetitions associated with the pool of communication resources. The processor and the memory can also be configured to transmit, using a contention-based communication resource from the pool of communication resources, a repetition of a sidelink communication in each of a number of consecutive time periods associated with the number of repetitions, each repetition of the sidelink communication being unassociated with control information for scheduling.

[0019] Another apparatus for wireless communication at a UE is described. The apparatus can include means for receiving signaling indicating a pool of communication resources, the pool of communication resources including one or more contention-based communication resources for sidelink communications. The apparatus can also include means for receiving signaling indicating a number of repetitions associated with the pool of communication resources. The apparatus can also include means for transmitting, using a contention-based communication resource from the pool of communication resources, a repetition of a sidelink communication in each of a number of consecutive time periods associated with the number of repetitions, each repetition of the sidelink communication being unassociated with control information for scheduling.

[0020] A non-transitory computer-readable medium storing code for wireless communications at a UE is described. The code can include instructions executable by a processor to receive signaling indicating a pool of communication resources, the pool of communication resources including one or more contention-based communication resources for sidelink communications. The code can also include instructions executable by the processor to receive signaling indicating a number of repetitions associated with the pool of communication resources. The code can also include instructions executable by the processor to transmit, using a contention-based communication resource from the pool of communication resources, a repetition of a sidelink communication in each of a number of consecutive time periods associated with the number of repetitions, each repetition of the sidelink communication being unassociated with control information for scheduling.

[0021] Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein can further include operations, features, means, or instructions for selecting, based on a transmission priority or a configuration for detecting overlapping transmissions, a contention-based communication resource from the pool of communication resources for transmitting the repetition of the sidelink communication.

[0022] Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein can further include operations, features, means, or instructions for transmitting consecutive repetitions of the sidelink communication using at least partially different frequency ranges.

[0023] Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein can further include operations, features, means, or instructions for identifying, based on a configured pattern of redundancy version identifiers (RV-IDs), an RV-ID for each of the repetitions of the sidelink communication.

[0024] Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein can further include operations, features, means, or instructions for receiving first signaling from a broadcast UE, the first signaling indicating the pool of communication resources, the number of repetitions, or both.

[0025] Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein can further include operations, features, means, or instructions for receiving, from the base station, first signaling, the first signaling indicating the pool of communication resources, the number of repetitions, or both.

[0026] Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein can further include operations, features, means, or instructions for performing a combining procedure based on the repetitions of the sidelink communication.

[0027] In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, the number of repetitions is associated with feedback.

[0028] In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, the number of repetitions is not associated with feedback.

[0029] A method for wireless communication at a first UE is described. The method can include receiving a configuration associated with mapping of communication resources allocated for a sidelink control channel and a sidelink data channel to corresponding physical communication resources, the configuration being applicable to a pool of communication resources, the pool of communication resources including first communication resources allocated to the first UE for the sidelink control channel and the sidelink data channel. The method can also include mapping, based on the configuration, logical communication resource units of the first communication resources to physical communication resource units of second communication resources for the sidelink control channel and the sidelink data channel, the logical communication resource units and the physical communication resource units each including a first number of resource elements (REs) and a second number of symbols. The method can also include communicating with a second UE using the second communication resources.

[0030] An apparatus for wireless communication at a first UE is described. The apparatus can include a processor and a memory coupled to the processor. The processor and the memory can be configured to receive a configuration associated with mapping of communication resources allocated for a sidelink control channel and a sidelink data channel to corresponding physical communication resources, the configuration being applicable to a pool of communication resources, the pool of communication resources including first communication resources allocated to the first UE for the sidelink control channel and the sidelink data channel. The processor and the memory can also be configured to map, based on the configuration, logical communication resource units of the first communication resources to physical communication resource units of second communication resources for the sidelink control channel and the sidelink data channel, the logical communication resource units and the physical communication resource units each including a first number of REs and a second number of symbols. The processor and the memory can also be configured to communicate with a second UE using the second communication resources.

[0031] Another apparatus for wireless communication at a first UE is described. The apparatus can include means for receiving a configuration associated with mapping of communication resources allocated for a sidelink control channel and a sidelink data channel to corresponding physical communication resources, the configuration applicable to a communication resource pool, the communication resource pool including first communication resources allocated to the first UE for the sidelink control channel and the sidelink data channel. The apparatus can also include means for mapping logical communication resource units of the first communication resources to physical communication resource units of second communication resources for the sidelink control channel and the sidelink data channel based on the configuration, the logical communication resource units and the physical communication resource units each including a first quantity of REs and a second quantity of symbols. The apparatus can also include means for communicating with a second UE using the second communication resources.

[0032] A non-transitory computer-readable medium storing code for wireless communication at a first UE is described. The code can include instructions executable by a processor to receive a configuration associated with mapping of communication resources allocated for a sidelink control channel and a sidelink data channel to corresponding physical communication resources, the configuration applicable to a communication resource pool, the communication resource pool including first communication resources allocated to the first UE for the sidelink control channel and the sidelink data channel. The code can also include instructions executable by the processor to map logical communication resource units of the first communication resources to physical communication resource units of second communication resources for the sidelink control channel and the sidelink data channel based on the configuration, the logical communication resource units and the physical communication resource units each including a first quantity of REs and a second quantity of symbols. The code can also include instructions executable by the processor to communicate with a second UE using the second communication resources.

[0033] In some examples of the method, apparatuses, and non-transitory computer- readable medium described herein, the first communication resources allocated for the sidelink control channel occupy a first bandwidth, and the second communication resources for the sidelink control channel cover a second bandwidth that is greater than the first bandwidth.

[0034] In some examples of the method, apparatuses, and non-transitory computer- readable medium described herein, the first quantity of REs and the second quantity of symbols are based on a communication type, the communication type including control information, or data, or both.

[0035] In some examples of the method, apparatuses, and non-transitory computer- readable medium described herein, the first quantity of REs and the second quantity of symbols are over the communication resource pool, or a traffic type of the communication resource pool, or both.

[0036] Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein can further include operations, features, means, or instructions for mapping an automatic gain control (AGC) communication to a range of frequencies covered in a first symbol of the second communication resource.

[0037] Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein can further include operations, features, means, or instructions for mapping an AGC communication to a range of frequencies covered in all of the symbols of the second communication resource.

[0038] Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein can further include operations, features, means, or instructions for receiving signaling indicating the configuration from a base station, a broadcast UE, or both.

[0039] A method for wireless communication at a first UE is described. The method can include receiving a configuration associated with mapping of communication resources allocated for a sidelink control channel and a sidelink data channel to corresponding physical communication resources, the configuration being for a communication resource pool, the communication resource pool including first communication resources allocated to the first UE for the sidelink control channel and the sidelink data channel. The method can also include mapping, based on the configuration, indices of a plurality of sets of logical communication resource units of the first communication resources to indices of a plurality of sets of physical communication resource units of second communication resources for the sidelink control channel and the sidelink data channel, the plurality of sets of logical communication resource units and the plurality of sets of physical communication resource units each including a first quantity of REs and a second quantity of symbols. The method can also include communicating with a second UE using the second communication resources.

[0040] An apparatus for wireless communication at a first UE is described. The apparatus can include a processor and a memory coupled to the processor. The processor and the memory can be configured to receive a configuration associated with mapping of communication resources allocated for a sidelink control channel and a sidelink data channel to corresponding physical communication resources, the configuration being for a communication resource pool, the communication resource pool including first communication resources allocated to the first UE for the sidelink control channel and the sidelink data channel. The processor and the memory can also be configured to map, based on the configuration, indices of a plurality of sets of logical communication resource units of the first communication resources to indices of a plurality of sets of physical communication resource units of second communication resources for the sidelink control channel and the sidelink data channel, the plurality of sets of logical communication resource units and the plurality of sets of physical communication resource units each including a first quantity of REs and a second quantity of symbols. The processor and the memory can also be configured to communicate with a second UE using the second communication resources.

[0041] Another apparatus for wireless communication at a first UE is described. The apparatus can include means for receiving a configuration associated with mapping of communication resources allocated for a sidelink control channel and a sidelink data channel to corresponding physical communication resources, the configuration being for a communication resource pool, the communication resource pool including first communication resources allocated to the first UE for the sidelink control channel and the sidelink data channel. The apparatus can also include means for mapping, based on the configuration, indices of a plurality of sets of logical communication resource units of the first communication resources to indices of a plurality of sets of physical communication resource units of second communication resources for the sidelink control channel and the sidelink data channel, the plurality of sets of logical communication resource units and the plurality of sets of physical communication resource units each including a first quantity of REs and a second quantity of symbols. The apparatus can also include means for communicating with a second UE using the second communication resources.

[0042] A non-transitory computer-readable medium storing code for wireless communication at a first UE is described. The code can include instructions executable by a processor to receive a configuration associated with mapping of communication resources allocated for a sidelink control channel and a sidelink data channel to corresponding physical communication resources, the configuration being for a communication resource pool, the communication resource pool including first communication resources allocated to the first UE for the sidelink control channel and the sidelink data channel. The code can also include instructions executable by the processor to map, based on the configuration, indices of a plurality of sets of logical communication resource units of the first communication resources to indices of a plurality of sets of physical communication resource units of second communication resources for the sidelink control channel and the sidelink data channel, the plurality of sets of logical communication resource units and the plurality of sets of physical communication resource units each including a first quantity of REs and a second quantity of symbols. The code can also include instructions executable by the processor to communicate with a second UE using the second communication resources.

[0043] In some examples of the method, apparatuses, and non-transitory computer- readable medium described herein, the first communication resources allocated for the sidelink control channel occupy a first bandwidth, and the second communication resources for the sidelink control channel cover a second bandwidth that is greater than the first bandwidth.

[0044] Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein can further include operations, features, means, or instructions for mapping consecutive even indices of the plurality of sets of logical communication resource units to consecutive indices of a first subset of the plurality of sets of physical communication resource units. Examples of the method, apparatuses, and non-transitory computer-readable medium described herein can further include operations, features, means, or instructions for mapping consecutive odd indices of the plurality of sets of logical communication resource units to consecutive indices of a second subset of the plurality of sets of physical communication resource units.

[0045] In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, indices of the plurality of sets of physical communication resource units that can be associated with consecutive indices of the plurality of sets of logical communication resource units can be separated by an index offset.

[0046] Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein can further include operations, features, means, or instructions for receiving signaling indicating the configuration from a base station, a broadcast UE, or both.

[0047] A method of wireless communication at a first UE is described. The method can include receiving a configuration associated with mapping of communication resources allocated for a sidelink control channel and a sidelink data channel to corresponding physical communication resources. The method can include identifying first communication resources allocated to the first UE for the sidelink control channel and the sidelink data channel, the first communication resources allocated for the sidelink control channel occupying a first bandwidth. The method can also include mapping the first communication resources to second communication resources for the sidelink control channel and the sidelink data channel based on the configuration, the second communication resources for the sidelink control channel covering a second bandwidth that is greater than the first bandwidth. The method can further include communicating with a second UE using the second communication resources.

[0048] An apparatus for wireless communication at a first UE is described. The apparatus can include a processor and memory coupled to the processor. The processor and the memory can be configured to receive a configuration associated with mapping of communication resources allocated for a sidelink control channel and a sidelink data channel to corresponding physical communication resources. The processor and the memory can also be configured to identify first communication resources allocated to the first UE for the sidelink control channel and the sidelink data channel, the first communication resources allocated for the sidelink control channel occupying a first bandwidth. The processor and the memory can also be configured to map the first communication resources to second communication resources for the sidelink control channel and the sidelink data channel based on the configuration, the second communication resources for the sidelink control channel covering a second bandwidth that is greater than the first bandwidth. The processor and the memory can also be configured to communicate with a second UE using the second communication resources.

[0049] Another apparatus for wireless communication at a first UE is described. The apparatus can include means for receiving a configuration associated with mapping of communication resources allocated for a sidelink control channel and a sidelink data channel to corresponding physical communication resources. The apparatus can include means for identifying first communication resources allocated to the first UE for the sidelink control channel and the sidelink data channel, the first communication resources allocated for the sidelink control channel occupying a first bandwidth. The apparatus can also include means for mapping the first communication resources to second communication resources for the sidelink control channel and the sidelink data channel based on the configuration, the second communication resources for the sidelink control channel covering a second bandwidth that is greater than the first bandwidth. The apparatus can also include means for communicating with a second UE using the second communication resources.

[0050] A non-transitory computer-readable medium storing code for wireless communication at a first UE is described. The code can include instructions executable by a processor to receive a configuration associated with mapping of communication resources allocated for a sidelink control channel and a sidelink data channel to corresponding physical communication resources. The code can also include instructions executable by the processor to identify first communication resources allocated to the first UE for the sidelink control channel and the sidelink data channel, the first communication resources allocated for the sidelink control channel occupying a first bandwidth. The code can also include instructions executable by the processor to map the first communication resources to second communication resources for the sidelink control channel and the sidelink data channel based on the configuration, the second communication resources for the sidelink control channel covering a second bandwidth that is greater than the first bandwidth. The code can also include instructions executable by the processor to communicate with a second UE using the second communication resources.

[0051] In some examples of the method, apparatuses, and non-transitory computer- readable medium described herein, the second bandwidth includes communication resources for one or more UEs different from the first UE.

[0052] Some examples of the method, apparatuses, and non-transitory computer- readable medium described herein can further include operations, features, means, or instructions for mapping consecutive symbols of the first-stage SCI to at least partially different first frequency ranges and mapping consecutive symbols of the second-stage SCI to at least partially different second frequency ranges interleaved with the respective first frequency ranges.

[0053] Some examples of the method, apparatuses, and non-transitory computer- readable medium described herein can further include operations, features, means, or instructions for multiplexing the first-stage SCI and the second-stage SCI to cover a bandwidth of the sidelink subchannel.

[0054] Some examples of the method, apparatuses, and non-transitory computer- readable medium described herein can further include operations, features, means, or instructions for multiplexing the first-stage SCI and the second-stage SCI to cover a bandwidth greater than the sidelink subchannel.

[0055] Some examples of the method, apparatuses, and non-transitory computer- readable medium described herein can further include operations, features, means, or instructions for mapping consecutive symbols of the first-stage SCI to a same first frequency range, wherein at least two subsets of the first-stage SCI can be separated by a frequency range, and mapping consecutive symbols of the second-stage SCI to a same second frequency range, the second frequency range being different from and interleaved with the first frequency range.

[0056] Some examples of the method, apparatuses, and non-transitory computer- readable medium described herein can further include operations, features, means, or instructions for multiplexing the first-stage SCI and the second-stage SCI to cover a bandwidth of the sidelink subchannel.

[0057] Some examples of the method, apparatuses, and non-transitory computer- readable medium described herein can further include operations, features, means, or instructions for multiplexing the first-stage SCI and the second-stage SCI to cover a bandwidth greater than the sidelink subchannel.

[0058] Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein can further include operations, features, means, or instructions for mapping a logical communication resource unit of the first communication resource to a physical communication resource unit of the second communication resource based on a mapping for a communication resource pool that includes the first communication resource, where the logical communication resource unit and the physical communication resource unit each include a first quantity of REs and a second quantity of symbols.

[0059] In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, the first quantity of REs and the second quantity of symbols can be based on a communication type including control information, or data, or both.

[0060] In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, the first quantity of REs and the second quantity of symbols can be based on a communication resource pool, or a traffic type of the communication resource pool, or both.

[0061] Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein can further include operations, features, means, or instructions for mapping the AGC communication to a range of frequencies covered in a first symbol of the second communication resource.

[0062] Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein can further include operations, features, means, or instructions for mapping the AGC communication to a range of frequencies covered in all of the symbols of the second communication resource.

[0063] Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein can further include operations, features, means, or instructions for mapping consecutive even indices of the set of logical communication resource units to consecutive indices of a first subset of the set of physical communication resource units and mapping consecutive odd indices of the set of logical communication resource units to consecutive indices of a second subset of the set of physical communication resource units.

[0064] Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein can further include operations, features, means, or instructions for mapping indices of the set of logical communication resource units to respective indices of the set of physical communication resource units, where indices of the set of physical communication resource units that can be associated with consecutive indices of the set of logical communication resource units can be separated by an index offset.

[0065] A method for wireless communication at a UE is described. The method can include identifying a number of repetitions associated with a sidelink communication and identifying a communication resource pool including one or more contention-based communication resources for the sidelink communication. The method can also include transmitting a repetition of the sidelink communication in each of a number of consecutive time periods associated with the number of repetitions using the contention-based communication resources from the communication resource pool, where each repetition of the sidelink communication is not associated with control information for scheduling.

[0066] An apparatus for wireless communication at a UE is described. The apparatus can include a processor and a memory coupled to the processor. The memory and the processor can be configured to identify a number of repetitions associated with a sidelink communication and identify a communication resource pool including one or more contention-based communication resources for the sidelink communication. The memory and the processor can also be configured to transmit a repetition of the sidelink communication in each of a number of consecutive time periods associated with the number of repetitions using the contention-based communication resources from the communication resource pool, where each repetition of the sidelink communication is not associated with control information for scheduling.

[0067] Another apparatus for wireless communication at a UE is described. The apparatus can include means for identifying a number of repetitions associated with a sidelink communication and identifying a communication resource pool including one or more contention-based communication resources for the sidelink communication. The apparatus can also include means for transmitting a repetition of the sidelink communication in each of a number of consecutive time periods associated with the number of repetitions using the contention-based communication resources from the communication resource pool, where each repetition of the sidelink communication is not associated with control information for scheduling.

[0068] A non-transitory computer-readable medium storing code for wireless communication at a UE is described. The code can include instructions executable by a processor to identify a number of repetitions associated with a sidelink communication and identify a communication resource pool including one or more contention-based communication resources for the sidelink communication. The code can also include instructions executable by the processor to transmit a repetition of the sidelink communication in each of a number of consecutive time periods associated with the number of repetitions using the contention-based communication resources from the communication resource pool, where each repetition of the sidelink communication is not associated with control information for scheduling.

[0069] Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein can further include operations, features, means, or instructions for selecting, based on the configuration for transmission priority or for detecting overlapping transmissions, the contention-based communication resources from the pool of communication resources for transmitting the repetitions of the sidelink communication.

[0070] Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein can further include operations, features, means, or instructions for transmitting the repetitions of the sidelink communication using at least partially different frequency ranges.

[0071] Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein can further include operations, features, means, or instructions for identifying the RV-IDs for each of the repetitions of the sidelink communication based on a configured pattern of RV-IDs.

[0072] Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein can further include operations, features, means, or instructions for performing a combining procedure based on the repetitions of the sidelink communication.

[0073] Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein can further include operations, features, means, or instructions for transmitting configuration signaling indicating a number of repetitions.

[0074] Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein can further include operations, features, means, or instructions for receiving configuration signaling indicating a pool of communication resources.

[0075] In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, the number of repetitions can be configured for a feedback instance. BRIEF DESCRIPTION OF DRAWINGS

[0076] Figure 1 An example of a wireless communications system that supports sidelink communication reliability in accordance with one or more aspects of the present disclosure is shown.

[0077] Figure 2 An example of a wireless communications system that supports sidelink communication reliability in accordance with one or more aspects of the present disclosure is shown.

[0078] Figures 3A to 3D Respective examples of resource mapping schemes that support sidelink communication reliability in accordance with one or more aspects of the present disclosure are shown.

[0079] Figure 4A ANDFigure 4B Respective examples of resource mapping schemes that support reliability for sidelink communications are shown.

[0080] Figure 5A And Figure 5B Respective examples of resource mapping schemes that support reliability for sidelink communications are shown.

[0081] Figure 6 An example of a communication repetition scheme that supports reliability for sidelink communications in accordance with one or more aspects of the present disclosure is shown.

[0082] Figure 7 An example of a process flow that supports reliability for sidelink communications in accordance with one or more aspects of the present disclosure is shown.

[0083] Figure 8 And Figure 9 A block diagram of a device that supports reliability for sidelink communications in accordance with one or more aspects of the present disclosure is shown.

[0084] Figure 10 A block diagram of a communications manager that supports reliability for sidelink communications in accordance with one or more aspects of the present disclosure is shown.

[0085] Figure 11 A diagram of a system including a device that supports reliability for sidelink communications in accordance with one or more aspects of the present disclosure is shown.

[0086] Figures 12 to 19 A flow diagram illustrating a method that supports reliability for sidelink communications in accordance with one or more aspects of the present disclosure is shown. DETAILED DESCRIPTION

[0087] Some UEs can be configured for sidelink communication with other UEs, e.g., via one or more sidelink channels (e.g., data or control channels) or sidelink subchannels, where a sidelink subchannel can represent a portion of a frequency range of a sidelink channel over which a UE can communicate. In some examples described herein, a first UE can transmit a sidelink packet (e.g., a sidelink transmission or communication) to a second UE via a sidelink communication resource, which can include time and frequency resources of a sidelink channel or subchannel. In some sidelink communication systems, resource allocation for a sidelink packet can include contiguous frequency domain resources. As described herein, contiguous frequency domain resources can represent one or more frequency ranges that are immediately adjacent to each other in frequency. In some examples, a contiguous allocation of resources in the frequency domain can result in higher interference (e.g., as generated by one or more signal reflections within a frequency range within the frequency domain, such as signal reflections caused by signaling within a similar frequency range from one or more machines within an enclosed space, such as a factory).

[0088] The present disclosure provides techniques for improving sidelink communication reliability, e.g., by reducing interference or frequency traps (e.g., missed transmissions at one or more frequencies) caused by contiguous resource allocations. In a first example, a UE (e.g., a first or second UE) can map sidelink resources allocated for a sidelink packet from a logical domain (e.g., a virtual domain based on resource-based indices or other identifiers) to a physical domain (e.g., time and frequency resources), where the mapped resources can include greater frequency diversity (e.g., a greater range of frequency resources, frequency resources that are farther apart in the physical frequency domain). For example, resources can be allocated to the first and second UEs in the logical domain (e.g., allocated by a base station, another UE, or the first or second UE), and one or both UEs can map the allocated resources to the physical domain. In one example, after mapping, a frequency range of a sidelink control channel or a sidelink data channel can be greater in the physical domain than in the logical domain (e.g., to increase frequency diversity). In another example, a sidelink communication can be associated with an aggregation factor representing a number of repetitions of the sidelink packet. In this example, the first UE can repeat the sidelink packet multiple times within a contention-based resource pool (e.g., a pool of sidelink communication resources that a UE selects for communication on a contention basis) before receiving feedback in order to improve communication reliability.

[0089] Based on one or more of the techniques described herein, the first UE can transmit the sidelink communication to the second UE (e.g., using the resource mapping and / or one or more repetitions of the sidelink communication). The techniques described herein can increase communication reliability, and thus increase the likelihood of successfully receiving the sidelink packet at the second UE. For example, mapping the sidelink frequency resources such that the sidelink resources have greater frequency diversity can increase communication reliability by reducing the amount of frequency-specific interference (e.g., interference that affects one frequency range but not another frequency range). Similarly, performing one or more repetitions of the sidelink communication can increase communication reliability by increasing the total amount of information received (e.g., via one or more repetitions) that can be processed by the receiving UE from the one or more repetitions.

[0090] Aspects of the disclosure are first described in the context of a wireless communications system. Aspects of the disclosure are further illustrated by resource mapping schemes, communication repetition schemes, process flows, apparatus diagrams, system diagrams, and flowcharts related to sidelink communication reliability, and are described in the context of the above.

[0091] Figure 1 An example of a wireless communications system 100 that supports sidelink communication reliability in accordance with one or more aspects of the present disclosure is shown. The wireless communications system 100 can include one or more base stations 105, one or more UEs 115, and a core network 130. In some examples, the wireless communications system 100 can be a Long Term Evolution (LTE) network, an LTE-Advanced (LTE-A) network, an LTE-A Pro network, or a New Radio (NR) network. In some examples, the wireless communications system 100 can support enhanced broadband communications, ultra-reliable (e.g., mission critical) communications, low latency communications, or communications with low-cost and low-complexity devices, or any combination thereof.

[0092] The base stations 105 can be dispersed throughout the geographic area 100 and can be of different forms or have different capabilities. The base stations 105 and UEs 115 can wirelessly communicate via one or more communication links 125. Each base station 105 can provide a coverage area 110 over which UEs 115 and base stations 105 can establish one or more communication links 125. The coverage area 110 can be an example of a geographic area over which a base station 105 and a UE 115 can support the communication of signals according to one or more radio access technologies.

[0093] The UEs 115 can be dispersed throughout the coverage areas 110 of the wireless communications system 100, and each UE 115 can be stationary, or mobile, or both at different times. The UEs 115 can be devices in different forms or having different capabilities. Some example UEs 115 are illustrated in FIG. 1. The UEs 115 described herein can be able to communicate with various types of base stations 105, such as the base stations 105 illustrated in FIG. 1, or network devices (e.g., core network nodes, relay devices, integrated access and backhaul (IAB) nodes, or other network devices). Figure 1 Some example UEs 115 are illustrated in FIG. 1. The UEs 115 described herein can be able to communicate with various types of devices, such as other UEs 115, base stations 105, or network devices (e.g., core network nodes, relay devices, integrated access and backhaul (IAB) nodes, or other network devices), as shown in FIG. 1. Figure 1

[0094] The base stations 105 can communicate with the core network 130, or with one another, or both. For example, the base stations 105 can interface with the core network 130 through one or more backhaul links 120 (e.g., via an SI, N2, N3, or other interface). The base stations 105 can communicate with one another over the backhaul links 120 (e.g., via an X2, Xn, or other interface) either directly (e.g., direct point-to-point), or indirectly (e.g., via core network 130), or both, in some examples, the backhaul links 120 can be or include one or more wireless links.

[0095] One or more of the base stations 105 described herein can include or can be referred to by a person of ordinary skill in the art as a base transceiver station, a radio base station, an access point, a radio transceiver, a NodeB, an eNodeB (eNB), a next-generation NodeB or giga-NodeB (either of which can be referred to as a gNB), a Home NodeB, a Home eNodeB, or other suitable terminology.

[0096] ​A UE 115 can include or can be referred to as a mobile device, a wireless device, a remote device, a handheld device, or a subscriber device, or some other suitable terminology, where the “device” can also be referred to as a unit, a station, a terminal, or a client, among other examples. A UE 115 can also include or can be referred to as a personal electronic device such as a cellular phone, a personal digital assistant (PDA), a tablet computer, a laptop computer, or a personal computer. In some examples, a UE 115 can include or be referred to as a wireless local loop (WLL) station, an Internet of Things (IoT) device, an Internet of Everything (IoE) device, or a machine type communications (MTC) device, among other examples, which can be implemented in various objects such as appliances, or vehicles, meters, or other items. In some implementations, a UE 115 can be or include an eDPE 115, where one or more of the various functions and communication layers of the UE 115 can be split between multiple physical devices for communication between the UE 115 and a base station 105. In such cases, the eDPE 115 can include respective physical devices configured to perform various functions and communications (e.g., to perform one or more of the signaling and power control techniques for RF sensing procedures described herein).

[0097] The UEs 115 described herein can be able to communicate with various types of devices, such as other UEs 115 that can sometimes act as relays or Figure 1 as shown.

[0098] The UEs 115 and the base stations 105 can wirelessly communicate with one another via one or more communication links 125 over one or more carriers. The term “carrier” can refer to a set of radio frequency spectrum resources with a defined physical layer structure for supporting communication link 125. For example, a carrier used for a communication link 125 can include a portion of a radio frequency spectrum band (e.g., a bandwidth part (BWP)) that is operated according to one or more physical layer channels for a given radio access technology (e.g., LTE, LTE-A, LTE-A Pro, NR). Each physical layer channel can carry acquisition signaling (e.g., synchronization signals, system information), control signaling (e.g., control channels), user data (e.g., data channels), or other signaling. The wireless communications system 100 can support communication with a UE 115 using carrier aggregation or multi-carrier operation. According to carrier aggregation, a UE 115 can be configured with multiple downlink component carriers and one or more uplink component carriers. Carrier aggregation can be used with both frequency division duplexing (FDD) and time division duplexing (TDD) component carriers.

[0099] Signal waveforms transmitted over a carrier can be composed of multiple subcarriers (e.g., using multi-carrier modulation (MCM) techniques such as orthogonal frequency division multiplexing (OFDM) or discrete Fourier transform spread OFDM (DFT-S-OFDM)). In a system employing MCM techniques, a resource element can consist of one symbol period (e.g., a duration of one modulation symbol) and one subcarrier, where the symbol period and subcarrier spacing are inversely related. The number of bits carried by each resource element can depend on the modulation scheme (e.g., the order of the modulation scheme, the coding rate of the modulation scheme, or both). Thus, the more resource elements that a UE 115 receives and the higher the order of the modulation scheme, the higher the data rates for the UE 115 can be. A wireless communications resource can refer to a combination of a radio frequency spectrum resource, a time resource, and a spatial resource (e.g., spatial layers or beams), and the use of multiple spatial layers can further increase the data rate for communications with a UE 115.

[0100] Time intervals for DL or UL reception can be expressed in multiples of a basic time unit, which may, for example, be a T s = 1 / (Δf max · N f ) seconds, where Δf max may represent the maximum supported subcarrier spacing, and N f may represent the maximum supported discrete Fourier transform (DFT) size). Time intervals of a communications resource can be organized as radio frames, each f radio frame having the same duration. For example, each radio frame can have a

[0101] Each frame can include a number of consecutive numbered subframes or slots, and each subframe or slot can have the same duration. In some examples, a frame can be divided (e.g., in the time domain) into subframes, and each subframe can be further divided into a number of slots. Alternatively, each frame can include a variable number of slots, and the number of slots can depend on the subcarrier spacing. Each slot can include a number of symbol periods (e.g., depending on the length of the cyclic prefix prepended to each symbol period). In some wireless communications systems 100, slots can be further divided into mini-slots containing one or more symbols. Excluding the cyclic prefix, each symbol period can contain one or more (e.g., N f sampling periods. The duration of a symbol period can depend on the subcarrier spacing or the operating band.

[0102] A subframe, a slot, a mini-slot, or a symbol can be the smallest scheduling unit (e.g., in the time domain) of the wireless communications system 100 and can be referred to as a transmission time interval (TTI). In some examples, the TTI duration (e.g., the number of symbol periods in a TTI) can be variable. Additionally or alternatively, the smallest scheduling unit of the wireless communications system 100 can be dynamically selected (e.g., in the form of a burst of shortened TTIs (sTTIs)).

[0103] Physical channels can be multiplexed on a carrier according to various techniques. A physical control channel and a physical data channel can be multiplexed on a downlink carrier, for example, using one or more of time division multiplexing (TDM) techniques, frequency division multiplexing (FDM) techniques, or hybrid TDM-FDM techniques. A control region (e.g., a control resource set (CORESET)) for a physical control channel can be defined by a quantity of symbol periods and can extend across the system bandwidth or a subset of the system bandwidth of the carrier. One or more control regions (e.g., CORESETs) can be configured for a set of UEs 115. For example, one or more of the UEs 115 can monitor or search control regions for control information according to one or more search space sets, and each search space set can include one or more control channel candidates arranged in a cascaded manner at one or more aggregation levels. An aggregation level for a control channel candidate can refer to a quantity of control channel resources (e.g., control channel elements (CCEs)) associated with encoded information for a control information format having a given payload size. Search space sets can include common search space sets configured for sending control information to multiple UEs 115 and UE-specific search space sets configured for sending control information to a specific UE 115.

[0104] In some examples, a base station 105 can be movable and therefore provide communication coverage for a moving geographic coverage area 110. In some examples, different geographic coverage areas 110 associated with different technologies can overlap, but the different geographic coverage areas 110 can be supported by the same base station 105. In other examples, overlapping geographic coverage areas 110 associated with different technologies can be supported by different base stations 105. The wireless communications system 100 can include, for example, a heterogeneous network in which different types of the base stations 105 provide coverage for various geographic coverage areas 110 using the same or different radio access technologies.

[0105] Some UEs 115, such as MTC or IoT devices, can be low cost or low complexity devices, and can provide for automated communication between machines (e.g., via Machine-to-Machine (M2M) communication). M2M communication or MTC can refer to data communication technologies that allow devices to communicate with one another or a base station 105 without human intervention. In some examples, M2M communication or MTC can include communications from devices that integrate sensors or meters to measure or capture information and relay such information to a central server or application program that makes use of the information or presents the information to humans in an intuitive manner. Some UEs 115 can be designed to collect information or enable automated behavior of machines or other devices. Examples of applications for MTC devices include smart metering, inventory monitoring, water level monitoring, equipment monitoring, healthcare monitoring, wildlife monitoring, weather and geological event monitoring, fleet management and tracking, remote security sensing, physical access control, and transaction-based business processing.

[0106] The wireless communications system 100 can be configured to support ultra-reliable communications or low-latency communications, or various combinations thereof. For example, the wireless communications system 100 can be configured to support ultra-reliable low-latency communications (URLLC) or mission critical communications. UEs 115 can be designed to support ultra-reliable, low-latency, or critical functions (e.g., mission critical functions). Ultra-reliable communications can include private communication or group communication, and can be supported by one or more mission critical services such as mission critical push-to-talk (MCPTT), mission critical video (MCVideo), or mission critical data (MCData). Support for mission critical functions can include prioritization of services, and the mission critical services can be used for public safety or general commercial applications. The terms ultra-reliable, low-latency, mission critical, and ultra-reliable low- latency can be used interchangeably herein.

[0107] In some examples, UEs 115 can also be able to communicate directly with other UEs 115 over a device-to-device (D2D) communication link 135 (e.g., using a peer-to-peer (P2P) or D2D protocol). In some cases, the communication link 135 can be called a sidelink communication link 165, and can be used for proximate UEs 115 to communicate with each other over a local connection. In some cases, the sidelink communication link 165 can be used to relay information (e.g., data, control information) from a first UE 115 to a second UE 115.

[0108] One or more UEs 115 utilizing D2D or sidelink communication can be within the geographic coverage area 110 of a base station 105. Other UEs 115 in such a group can be outside the geographic coverage area 110 of a base station 105 or be otherwise unable to receive transmissions from a base station 105. In some examples, groups of UEs 115 communicating via D2D or sidelink communication can utilize a one-to-many (1 :M) system in which each UE 115 transmits to every other UE 115 in the group. In some examples, a base station 105 facilitates the scheduling of resources for D2D or sidelink communication. In other cases, D2D or sidelink communication is carried out between UEs 115 without the involvement of a base station 105.

[0109] In some systems, the D2D communication link 135 can be an example of a communication channel, such as a sidelink communication channel, between vehicles (e.g., UEs 115). In some examples, vehicles can communicate using vehicle-to-everything (V2X) communications, vehicle-to-vehicle (V2V) communications, or some combination of these. For example, a vehicle or other example of a UE 115 (e.g., an industrial or other device) can communicate using cellular V2X (C-V2X) communications. A vehicle can signal information about traffic conditions, signal scheduling, weather, safety, emergencies, or any other information relevant to a V2X system. In some examples, a vehicle in a V2X system can communicate with roadside infrastructure, such as roadside units, or with the network via one or more network nodes (e.g., base stations 105) using vehicle-to-network (V2N) communications, or both.

[0110] The core network 130 can provide user authentication, access authorization, tracking, Internet Protocol (IP) connectivity, and other access, routing, or mobility functions. The core network 130 can be an evolved packet core (EPC) or 5G core (5GC), which can include at least one control plane entity that manages access and mobility (e.g., a mobility management entity (MME), an access and mobility management function (AMF)) and at least one user plane entity that routes packets to and from user equipment (e.g., a serving gateway (S-GW), a packet data network (PDN) gateway (P-GW), or a user plane function (UPF)). The control plane entity can manage non-access stratum (NAS) functions, such as mobility, authentication, and bearer management for UEs 115 served by base stations 105 associated with the core network 130. User IP packets can be transferred through the user plane entity, which can provide IP address allocation as well as other functions. The user plane entity can be connected to the network operators IP services 150. The operators IP services 150 can include access to the Internet, Intranet, IP Multimedia Subsystem (IMS), or a Packet-Switched Streaming Service. UEs 115 can communicate with the core network 130 through communication link 155.

[0111] Some of the network devices, such as a base station 105, can include subcomponents such as an access network entity 140, which can be an example of an access node controller (ANC). Each access network entity 140 can communicate with UEs 115 through one or more other access network transmission entities 145, which can be referred to as radio heads, smart radio heads, or transmission / reception points (TRPs). Each access network transmission entity 145 can include one or more antenna panels. In some configurations, various functions of each access network entity 140 or base station 105 can be distributed across various network devices (e.g., radio heads and ANCs) or consolidated into a single network device (e.g., a base station 105).

[0112] The wireless communications system 100 can operate using one or more frequency bands, e.g., in the range of 300 megahertz (MHz) to 300 gigahertz (GHz). The region from 300 MHz to 3 GHz is known as the ultra-high frequency (UHF) region or decimeter band, since the wavelengths range from approximately one decimeter to one meter in length. UHF waves can be blocked or redirected by buildings and environmental features, but the waves can penetrate structures sufficiently for a macro cell to provide service to UEs 115 located indoors. Transmission of UHF waves can be associated with smaller antennas and shorter ranges (e.g., less than 100 kilometers) compared to transmission using the smaller frequencies and longer waves of the high frequency (HF) or very high frequency (VHF) portion of the spectrum below 300 MHz.

[0113] The electromagnetic spectrum is often subdivided based on frequency / wavelength into various classes, bands, channels, etc. In 5G NR, two initial operating bands have been identified as frequency range designations FR1 (410 MHz - 7.125 GHz) and FR2 (24.25 - 52.6 GHz). The frequencies between FR1 and FR2 are often referred to as the band center frequency. Although a portion of FR1 is greater than 6 GHz, FR1 is often referred to, interchangeably, as a “Sub-6 GHz” band in various documents and articles. A similar nomenclature issue sometimes occurs with respect to FR2, which is often referred to, interchangeably, as a “millimeter wave” band in documents and articles, despite being different from the extremely high frequency (EHF) band (30 GHz - 300 GHz) which is identified by the International Telecommunications Union (ITU) as a “millimeter wave” band.

[0114] The frequencies between FR1 and FR2 are often referred to as the band center frequency. Recent 5G NR studies have identified operating bands for these band center frequencies as frequency range designation FR3 (7.125 GHz - 24.25 GHz). Bands falling within FR3 can inherit FR1 characteristics and / or FR2 characteristics, and thus can effectively extend FR1 and / or FR2 characteristics to the band center frequencies. Additionally, even higher bands are currently under exploration to extend 5G NR operation beyond 52.6 GHz. For example, three higher operating bands have been identified as frequency range designations FR4-a or FR4-1 (52.6 GHz - 71 GHz), FR4 (52.6 GHz - 114.25 GHz), and FR5 (114.25 GHz - 300 GHz). Each of these higher bands falls within the EHF band.

[0115] With the above in mind, unless specifically stated otherwise, it should be understood that the term “sub-6 GHz” or the like if used herein can broadly represent frequencies that can be less than 6 GHz, can be within FR1, or can include the band center frequencies. Further, unless specifically stated otherwise, it should be understood that the term “millimeter wave” or the like if used herein can broadly represent frequencies that can include the band center frequencies, can be within FR2, FR4, FR4-a or FR4-1, and / or FR5, or can otherwise be within the EHF band.

[0116] Wireless communications system 100 can utilize both licensed and unlicensed radio frequency spectrum bands. For example, wireless communications system 100 can employ License Assisted Access (LAA), LTE-Unlicensed (LTE-U) radio access technology, or NR technology in an unlicensed

[0117] Base stations 105 or UEs 115 can be equipped with multiple antennas, which can be used to employ techniques such as transmit diversity, receive diversity, multiple-input multiple-output (MIMO) communications, or beamforming. The antennas of a base station 105 or a UE 115 can be co-located or separated by different geographic distances, and can be oriented in various directions. For example, one or more base station antennas or antenna arrays can be co-located at a base station antenna assembly, such as an antenna tower. In some examples, the antennas of a base station 105 can be located in different geographic locations. A base station 105 can have an array of antennas that can support beamforming of the communications with UEs 115. Similarly, a UE 115 can have one or more antenna arrays that can support various MIMO or beamforming operations. Additionally or alternatively, antenna panels can support radio frequency beamforming of signals transmitted via the antenna ports.

[0118] Beamforming, which can also be referred to as spatial filtering, directional transmission, or directional reception, is a signal processing technique that can be used at a transmitting device or a receiving device (e.g., a base station 105, a UE 115) to shape or steer a beam of energy in a specific direction, for example, to extract or combine signals received at different receiver antennas. Beamforming can be achieved by combining or “precoding” signals transmitted or received at different antennas with phase adjustments. The phase adjustments can be made based on long or short term channel information of the channel. The adjustments can be made on the go (dynamic beamforming) or semi-statically (semi- static beamforming), or a combination thereof. Some examples of the beamforming techniques include transmit beamforming, receive beamforming, full-dimension beamforming, and / or the like.

[0119] The UEs 115 and the base stations 105 can support retransmissions of data to increase the likelihood that data is received successfully. HARQ feedback is one technique used to increase the likelihood that data is received correctly at a receiving device. HARQ can include a combination of error detection (e.g., using a cyclic redundancy check (CRC)), forward error correction (FEC), and retransmission (e.g., automatic repeat request (ARQ)). HARQ can improve throughput at the medium access control (MAC) layer in poor radio conditions (e.g., low signal-to-noise conditions). In some examples, a device can support same-slot HARQ feedback, where the device can provide HARQ feedback in a specific time slot for data received in a previous time slot. In other cases, the device can provide HARQ feedback in a subsequent time slot or according to some other time interval.

[0120] One or more of the operations performed by the UE 115 can be performed by the UE communications manager 101, which can be an example of a communications manager 815, 920, 1020, or 1110 as described with reference to FIGs. 8, 9, 10, and 11. In some cases, the transceiver(s) can perform the receiving or transmitting operations, and the processor(s) can identify one or more aspects of a mapping or repetition configuration and configure one or more sidelink communications in accordance with the mapping or repetition configuration. Figures 8 to 11

[0121] Figure 2 An example of a wireless communications system 200 that supports reliability of sidelink communications is shown in accordance with one or more aspects of the present disclosure. In some examples, wireless communications system 200 can implement aspects of wireless communications system 100. For example, the wireless communications devices can include base station 105-a and UEs 115-a and 115-b, which can be examples of base stations 105 and UEs 115 as described with reference to FIGs. 1 and 2. UEs 115-a and 115-b can each represent an example of a UE 115 configured for sidelink communications (e.g., sidelink communications with other UEs 115 and via one or more sidelink channels or sub-channels). In some examples described herein, UE 115-a can transmit a sidelink packet 205 (e.g., a sidelink transmission or communication) to UE 115-b (e.g., UE 115-b can receive the sidelink packet 205). Figure 1

[0122] ​​UE 115-b can receive the sidelink packet 205 by performing blind decoding of a number of sidelink channels or sub-channels (e.g., blind decoding of all configured sidelink channels or sub-channels such that the UE 115 can decode all sidelink transmissions). For example, 1-27 sidelink sub-channels can be configured for sidelink communications within the wireless communications system 200 such that blind decoding of all sub-channels can be performed within a time limit for receiving a sidelink communication. A sidelink sub-channel can occupy a number of frequency resource blocks (RBs); for example, ten or more RBs (e.g., 10, 15, 20, 25, 50, 75, or 100 RBs). The sidelink packet 205 can include one or more sidelink sub-channels and one or more TTIs (e.g., one or more slots), where a sidelink control channel (e.g., PSCCH) and a sidelink data channel (e.g., PSSCH) can be transmitted within the same TTI (e.g., the same slot). The sidelink packet 205 can also include a gap between the data and / or control channel block and a feedback instance (e.g., physical sidelink feedback channel (PSFCH)) associated with the sidelink packet 205.

[0123] The sidelink data channel can occupy a number of adjacent sub-channels (e.g., ), and the sidelink control channel can occupy up to one sub-channel with a lowest sub-channel index, e.g., within a sidelink bandwidth. The sidelink control channel can carry one or more portions (e.g., stages) of SCI. For example, the sidelink control channel can carry a first stage SCI that includes information about a corresponding sidelink data channel and about a sidelink resource reservation for a future TTI. In some cases, the sidelink data channel can carry a second stage SCI that can be decoded by the UE 115-b after decoding the sidelink control channel and can include a source identifier (ID) and a destination ID, which can indicate a source UE 115 (e.g., UE 115-a) and an intended destination UE 115 (e.g., UE 115-b) for the sidelink packet 205.

[0124] The sidelink control channel can be configured to occupy a number of physical RBs (PRBs) (e.g., 10, 12, 15, 20, or 25 PRBs) within a subchannel and can be configured to include two or three symbols. In some cases, the SCI can reserve up to two future resources for retransmission of the sidelink packet 205, where the retransmission and the original sidelink packet 205 can include a same frequency allocation size or length. The resources for the sidelink packet 205 and any retransmissions thereof can be allocated by a base station 105 (e.g., base station 105-a) via downlink control information (DCI) (e.g., mode 1 communications) or can be allocated autonomously by a transmitting or receiving UE 115 (e.g., UE 115-a or UE 115-b) (e.g., mode 2 communications). In cases where the resources for the sidelink packet are allocated autonomously, the UEs 115-a and 115-b can communicate without communicating with the base station 105-a, as indicated by the dashed lines in FIG. 1 for downlink transmissions 210 from the base station 105-a. In some cases, the behavior of the UE 115-b (e.g., the receiving UE 115) can be the same in either mode (e.g., the resource allocation process can be transparent to the receiving UE 115). Figure 2

[0125] Mode 1 communications can support dynamic sidelink grants or various types of configured sidelink grants (e.g., configured grant Type 1 or Type 2). Dynamic grants can be transmitted from the base station 105-a (e.g., via downlink transmissions 210) via DCI (e.g., DCI Type 3 0) and can indicate time and frequency resources allocated for the sidelink packet 205 and a transmission timing. Configured grants (e.g., Type 1) can be activated via radio resource control (RRC) signaling from the base station 105-a (e.g., via downlink transmissions 210). A modulation coding scheme (MCS) for mode 1 communications can be set by the UE 115-a (e.g., the transmitting UE 115) and can be within limits set or configured by the base station 105-a. DCI or RRC signaling can represent an example of signaling on a base station to UE interface (e.g., a Uu interface).

[0126] ​UE 115-a can allocate one or more resources for mode 2 communications based on a channel sensing procedure. For example, UE 115-a (e.g., a transmitter or receiver of UE 115-a) can perform channel sensing by blindly decoding all control channels in order to determine which sidelink resources are reserved for other sidelink transmissions. The transmitter or receiver of UE 115-a can report available sidelink resources to an upper layer, and the upper layer can determine which resources to allocate for sidelink packet 205. Sidelink packet 205 can represent an example of signaling over a UE-to-UE interface (e.g., a PC5 interface).

[0127] Wireless communications system 200 can be an example of an industrial internet of things (IIoT) system, however, the techniques described herein can be applicable to any sidelink or message-based reservation system. For example, the IIoT system can communicate using a sidelink communication protocol (e.g., a C-V2X communication protocol). The IIoT system can include sensors that can send sensing data to a server or similar network device. The network device can perform computations based on the sensing data and can send commands or similar messages to actuators to perform actions in response to the sensing data. In some examples, the IIoT system can be configured to communicate sidelink packets 205 within a time window (e.g., 1 to 2 ms or less) (e.g., between when a sensor senses a change parameter and when a command message arrives at an actuator based on the sensing data). Some IIoT systems can also be configured to communicate sidelink packets 205 with a configured error rate (e.g., 10 -6 error rate). Thus, control channels for IIoT communications can be configured to meet conditions imposed by the transmission time window and error rate.

[0128] In an example IIoT communication process, a sensor can sense a changing parameter, compile data using an embedded computer, and transmit the data to a receiver at a programmable logic controller (PLC) (e.g., a control or supervisory server). A transmitter of the PLC can transmit the data to a receiver of an actuator on a wireless device, and an embedded computer of the actuator can analyze the data and make adjustments based on the changing parameter detected by the sensor. In such examples, a user interface can have a latency of 0.3 ms, and a radio interface can have a latency of 0.2 ms. A wireless PLC can support flexible and simplified deployment, for example, based on the ability to communicate wirelessly with one or more sensors and one or more actuators. For example, a PLC can communicate with (e.g., control) 20 to 50 sensor / actuator pairs. In some cases, performing such communication via a base station 105-a can result in multiple over-the-air (OTA) transmissions, which can increase latency and decrease reliability. Thus, an IIoT system can employ sidelink communications.

[0129] Some IIoT communication traffic can be deterministic and can include smaller sidelink packets 205 (e.g., having a size of 32 to 256 bytes). Smaller sidelink packets 205 can support smaller transmission bandwidths (e.g., 2 RBs) for IIoT traffic, where the overall bandwidth for IIoT can be large and can include dedicated bands and / or unlicensed bands. Some sensors or actuators can have limited capabilities, for example, with respect to transmission bandwidth or processing capabilities, and thus, the sensors or actuators can not be configured to detect or monitor all sidelink communications (e.g., perform blind decoding of all sidelink communications).

[0130] In some sidelink communication systems for IIoT, resource allocation for sidelink packets 205 can be limited to contiguous frequency domain resources. However, contiguous frequency resource allocation can limit the range of frequencies for some sidelink packets 205, which can limit or reduce frequency diversity. In some IIoT environments, reduced frequency diversity can result in unreliable sidelink transmissions. For example, narrowband interference generated by a neighboring machine or frequency traps (e.g., missed transmissions) generated by signal reflections can result in degraded communication quality in one or more frequency ranges. Thus, some IIoT sidelink communications (e.g., control and / or data channels) can experience reduced transmission reliability, which can result in latency or other errors for the sidelink communications (e.g., sidelink packets 205).

[0131] The present disclosure provides techniques for improving reliability of sidelink communications. In a first example, UEs 115 (e.g., UEs 115-a and 115-b) can map allocated sidelink resources from a logical domain (e.g., a virtual domain) to a physical domain, where the mapped resources can include greater frequency diversity. For example, resources can be allocated to UEs 115-a and 115-b in a logical domain (e.g., autonomously or by base station 105-a), and one or both of UEs 115-b and 115-a can map the allocated resources to a physical domain, where a frequency range of a sidelink control channel or a sidelink data channel can be greater in the physical domain than in the logical domain (e.g., to increase frequency diversity). In a second example (e.g., additionally or alternatively), IIoT or other sidelink communications can be associated with an aggregation factor that represents a number of blind repetitions (e.g., repetitions sent without first receiving feedback) of a sidelink packet 205 associated with a feedback process (e.g., HARQ feedback). For example, UE 115-a can repeat a sidelink packet 205 multiple times within a contention-based resource pool before receiving feedback in order to improve communication reliability.

[0132] In a first example, a UE 115 (e.g., UE 115-a or 115-b) can select or be allocated sidelink resources in a logical or virtual domain, and can map the resources to a physical domain. For example, the UE 115 can use a multiplexing pattern to map logical resources associated with first and second stage SCI that are adjacent in frequency to cover a greater frequency range of at least the first stage SCI. In another example, the UE 115 can map logically allocated resources to physical resources using one or more mappings of a logical resource pool, where the one or more mappings are based on resource units that each include a same number of symbols and a same number of resource elements. For example, the UE 115 can map virtually allocated resources to physical resources using a resource mapping pattern based on a defined index of resource units (e.g., where a resource unit can represent one or more RBs). The mapping pattern, any information about an associated resource pool, and any associated parameters can be configured for the UE 115 by base station 105-a (e.g., via downlink transmissions 210) or by another UE 115 (e.g., UE 115-a or 115-b) via configuration signaling (e.g., RRC signaling).

[0133] In a second example, the UEs 115-a and 115-b can be configured with one or more aggregation factors for blind repetitions of the sidelink packet 205. For example, the base station 105-a or another UE 115 (e.g., UE 115-a or 115-b) can configure one or both of the UEs 115-a and 115-b with an aggregation factor and associated parameters (e.g., via a downlink transmission 210 or another transmission). Similarly, the base station 105-a or another UE 115 (e.g., UE 115-a or 115-b) can configure one or both of the UEs 115-a and 115-b with a contention-based resource pool for transmitting repetitions of the sidelink packet 205 (e.g., via a downlink transmission 210 or another transmission).

[0134] Based on one or more of the techniques described herein, the UE 115-a can transmit the sidelink packet 205 to the UE 115-b (e.g., using the resource mapping and / or blind repetitions of the sidelink packet 205). The techniques described herein can increase communication reliability, and thus increase the likelihood of successfully receiving the sidelink packet 205 at the UE 115-b.

[0135] Figure 3A 、 Figure 3B 、 Figure 3C and Figure 3D FIGs. 3 l-a, 31-b, 31-c, and 31-d illustrate respective examples of resource mapping schemes 301, 302, 303, and 304 that support sidelink communication reliability in accordance with one or more aspects of the present disclosure. In some examples, the resource mapping schemes 301, 302, 303, and 304 can implement aspects of the wireless communications system 100 or 200. For example, one or more of the resource mapping schemes 301, 302, 303, or 304 can be implemented by a UE 115, which can represent examples of the UEs 115 described with reference to FIGs. 1 and 2, or aspects of the UEs 115. As described with reference to FIGs. 1 and 2, the UEs 115 can be configured to communicate using sidelink communications, and can be configured to implement one or more of the resource mapping schemes 301, 302, 303, or 304 to map sidelink communication resources allocated in a logical domain or virtual domain to physical sidelink communication resources (e.g., to improve frequency diversity for a sidelink control channel, a sidelink data channel, or both). Figure 1 and Figure 2 As described with reference to FIGs. 1 and 2, the UEs 115 can be configured to communicate using sidelink communications, and can be configured to implement one or more of the resource mapping schemes 301, 302, 303, or 304 to map sidelink communication resources allocated in a logical domain or virtual domain to physical sidelink communication resources (e.g., to improve frequency diversity for a sidelink control channel, a sidelink data channel, or both). Figure 2

[0136] ​In some examples, decoding SCI can be directly related to increasing reliability and / or reducing latency for some sidelink communications (e.g., IIoT communications). For example, when a UE 115 or another UE 115 allocates resources for sidelink communications (e.g., a mode 2 resource allocation), the UE 115 allocating the resources can transmit SCI to inform other UEs 115 of the allocated resources and to avoid transmission collisions. In some sidelink communications (e.g., C-V2X communications), a first-stage SCI and a second-stage SCI can be transmitted at the beginning of a subchannel time frame (e.g., at the beginning of a second symbol of the time frame, such as symbol 330-a, 330-b, 330-c, or 330-d) and can occupy a relatively small portion of a subchannel bandwidth (e.g., 10% of the subchannel bandwidth). For example, a subchannel bandwidth (e.g., any of bandwidths 335-a, 335-b, 335-c, 335-d, 335-e, or 335-f) can occupy 100 PRBs 345, and a corresponding control channel (e.g., a PSCCH) can occupy 10 PRBs 345 of these PRBs 345. For example, a PRB 345 can be a frequency resource unit (not to scale) represented by a dashed line in Figure 3A , which can be a unit that at least partially defines or measures a bandwidth of a subchannel. A subchannel bandwidth can occupy a portion of a channel 340, which can be represented by, for example, two or more subchannel bandwidths (e.g., as shown in Figure 3C .

[0137] A first-stage SCI 320 and / or a second-stage SCI 325 can be configured with a small frequency diversity, which can result in reduced transmission reliability. For example, as shown in the first example in each of Figure 3A , Figure 3B , Figure 3C , and Figure 3D , a first-stage SCI 320-A, 320-B, 320-C, or 320-D can occupy contiguous frequency resources, such that the diversity in the frequency resources can be relatively small (e.g., the frequency resources can occupy a relatively similar frequency range). Similarly, a second-stage SCI 325-A, 325-B, 325-C, or 325-D can occupy contiguous frequency resources, such that the diversity in the frequency resources for the second-stage SCI 325 can be relatively small.

[0138] Resource mapping schemes 301, 302, 303, and 304 illustrate respective examples of increasing frequency diversity of the sidelink control channel and / or the sidelink data channel 315 by multiplexing the sidelink data channel 315 (e.g., PSSCH) and the first-stage SCI 320 (e.g., sidelink control channel) in an interleaved manner. A resource mapping scheme (e.g., one or more of resource mapping schemes 301, 302, 303, or 304) can be configured as a multiplexing pattern at a UE 115 by configuration signaling (e.g., RRC signaling, such as transmitted via a base station 105 or another UE 115). The resource mapping scheme can be configured separately for each subchannel, or can be common for all subchannels. The same mapping scheme or different mapping schemes can be used to map the first-stage SCI 320 and the second-stage SCI 325. In some cases, resource mapping schemes 301, 302, 303, and 304 can be implemented even if virtual-to-physical RB mapping is disabled for the UE 115. In some cases, a first example of resource mapping in each of the respective resource mapping schemes 301, 302, 303, and 304 can represent virtual resource mapping, and a second example of resource mapping can represent physical resource mapping.

[0139] In a first example illustrated by resource mapping schemes 301 and 302, the sidelink data channel 315 can be allocated within one subchannel bandwidth (e.g., bandwidth 335-a or bandwidth 335-b). In some cases, as illustrated by resource mapping scheme 301, the first-stage SCI 320 and the second-stage SCI 325 can be multiplexed to cover the entire bandwidth of bandwidth 335-a or a greater portion of the bandwidth of bandwidth 335-b. For example, resources allocated for the first-stage SCI 320-A can be mapped to multiplexed resources used for the first-stage SCI at 320-B through 320-D. Similarly, resources allocated for the second-stage SCI 325-A can be mapped to multiplexed resources used for the second-stage SCI at 325-B and 325-C. The control channel AGC resources 305 and the data channel AGC resources 310 (e.g., AGC signals for hardware calibration) can remain the same after mapping.

[0140] The mapping scheme illustrated by resource mapping scheme 301 can provide a greater amount of frequency diversity by remapping the SCI resources to occupy a greater portion of the bandwidth of bandwidth 335-a. For example, as illustrated by resource mapping scheme 301, the first-stage SCI 320-A can be mapped to a first portion of the bandwidth of bandwidth 335-a, and the second-stage SCI 325-A can be mapped to a second portion of the bandwidth of bandwidth 335-a. The first portion and the second portion can be interleaved within the bandwidth of bandwidth 335-a. In some cases, the first portion and the second portion can be interleaved in a manner that is different from the interleaving of the first-stage SCI 320 and the second-stage SCI 325 illustrated by resource mapping scheme 302. Figure 3AAs shown in the second example in FIG. 3, after mapping, the first-stage SCI 320 can occupy discontinuous frequency resources at 320-B, 320-C, and 320-D, each of which can be associated with a respective first frequency range 355. In such a case, the diversity in frequency resources can be greater (e.g., some of the frequency resources used for the first-stage SCI 320 can occupy some different frequency ranges), and the discontinuous frequency resources at 320-B, 320-C, and 320-D can together occupy a greater portion of the bandwidth 335-a. Similarly, the second-stage SCI 325 (e.g., as shown in the second example of FIG. 3) can occupy discontinuous frequency resources at 325-B and 325-C, each of which can be associated with a respective second frequency range 360 that can be interleaved with the respective first frequency range 355. In such a case, the diversity in frequency resources for the second-stage SCI 325 can be greater, and can occupy a greater portion of the bandwidth 335-a. Figure 3A

[0141] In some cases, as shown by the resource mapping scheme 302, the first-stage SCI and the second-stage SCI can be multiplexed to cover a greater portion of the bandwidth of the bandwidth 335-b, where the frequency resources used by the first-stage SCI 320 or the second-stage SCI 325 can be the same frequency resources for consecutive symbols. For example, the resources allocated for the first-stage SCI 320-E can be mapped to multiplexed resources for the first-stage SCI at 320-F and 320-G, each of which can be associated with a respective first frequency range 355. In such a case, the allocated frequency resources can remain the same for each consecutive symbol. Similarly, the resources allocated for the second-stage SCI 325-D can be mapped to multiplexed resources for the second-stage SCI at 325-E, which can be associated with the second frequency range 360. The control channel AGC resources 305 and the data channel AGC resources 310 can remain the same after mapping. The mapping scheme shown by the resource mapping scheme 302 can provide some frequency diversity (e.g., more frequency diversity than the original resource allocation) by remapping the SCI resources to span or cover a greater portion of the bandwidth of the bandwidth 335-b. For example, the multiplexed resources including the first-stage SCI at 320-F and 320-G and the total bandwidth between the multiplexed resources can be greater than the bandwidth covered by the first-stage SCI at 320-E. As shown by the resource mapping scheme 302, the SCI (e.g., the first-stage SCI 320) can be split or divided to occupy two different subsets of frequency resources within a symbol.

[0142] ​In a second example shown by resource mapping schemes 303 and 304, the sidelink data channel 315 can be allocated within multiple subchannel bandwidths (e.g., bandwidths 335-c and 335-d or bandwidths 335-e and 335-f). The second example can illustrate techniques for mapping the first-stage SCI 320 and / or the second-stage SCI 325 to one or more subchannel bandwidths that are different from the subchannel bandwidth indicated by the original resource allocation. The first-stage SCI 320 can be allocated to the subchannel with the lowest index 350 (e.g., for backward compatibility), and this can be informed to the UE 115 via RRC signaling. The first-stage SCI 320 can hop to other subchannel bandwidths allocated to the UE 115, as indicated by the upper communication layer. The second-stage SCI 325 can occupy other subchannel bandwidths, as indicated to the UE 115 via RRC signaling or control signaling (e.g., a field in SCI, such as in SCI 0_1).

[0143] In some cases, as shown by resource mapping scheme 303, the first-stage SCI 320 can be multiplexed to cover the entire bandwidth of the bandwidth 335-c (e.g., the subchannel with the lowest index 350) or a greater portion of the bandwidth of the bandwidth 335-c. The second-stage SCI 325 can be multiplexed to cover the entire bandwidth of the bandwidths 335-c and 335-d or a greater portion of the bandwidth of the bandwidths 335-c and 335-d. For example, the resources allocated for the first-stage SCI 320-H can be mapped to the multiplexed resources of the first-stage SCI at 320-I through 320-K. Similarly, the resources allocated for the second-stage SCI 325-F can be mapped to the multiplexed resources of the second-stage SCI at 325-G through 325-I. The control channel AGC resources 305 and the data channel AGC resources 310 can remain the same after the mapping.

[0144] The mapping scheme shown by resource mapping scheme 303 can provide a greater amount of frequency diversity by remapping the SCI resources to occupy a greater portion of the bandwidth of the bandwidths 335-c and 335-d. For example, as shown by the second example in Figure 3C After the mapping, the first-stage SCI 320 can occupy the discontinuous frequency resources at 320-I, 320-J, and 320-K, such that the diversity in the frequency resources can be greater (e.g., some of the frequency resources for the first-stage SCI 320 can occupy some different frequency ranges), as shown by the second example in Figure 3C Similarly, the second-stage SCI 325 (e.g., as shown by the second example in

[0145] In some cases, as shown by resource mapping scheme 304, the first stage SCI 320 can be multiplexed to cover a larger portion of the bandwidth of the bandwidth 335-e (e.g., subchannel with lowest index 350) with contiguous symbols 330 of the first stage SCI 320 can occupy the same frequency resources. The second stage SCI 325 can be multiplexed to cover the entire bandwidth of subchannels 335-e and 335-f or a larger portion of the bandwidth of subchannels 335-e and 335-f. For example, the resources allocated for the first stage SCI 320-L can be mapped to multiplexed resources of the first stage SCI at 320-M and 320-N. Similarly, the resources allocated for the second stage SCI 325-J can be mapped to multiplexed resources of the second stage SCI at 325-K to 325-M. The control channel AGC resources 305 and the data channel AGC resources 310 can remain the same after mapping. The mapping scheme shown by resource mapping scheme 304 can provide some frequency diversity (e.g., more frequency diversity than the original resource allocation) by remapping the SCI resources to cover a larger portion of the bandwidth of subchannels 335-e and 335-f. As shown by resource mapping scheme 304, the SCI (e.g., first stage SCI 320 or second stage SCI 325) can be split or divided to occupy two different subsets of frequency resources within one symbol 330.

[0146] Based on one or more of the examples described herein, a UE 115 can transmit a sidelink packet or communication to another UE 115 (e.g., using resource mapping). The techniques described herein can increase communication reliability, and thus, the likelihood of successfully transmitting or receiving a sidelink packet.

[0147] Figure 4A And Figure 4B Respective examples of resource mapping schemes 401 and 402 that support sidelink communication reliability in accordance with one or more aspects of the present disclosure are shown. In some examples, resource mapping schemes 401 and 402 can implement aspects of wireless communication systems 100 or 200. For example, one or more of resource mapping schemes 401 or 402 can be implemented by a UE 115 (which can represent examples of the UEs 115 described with reference to FIGs. 1-2) or aspects of the UE 115. As described with reference to FIGs. 1-2, a UE 115 can implement one or more of resource mapping schemes 401 or 402 to map sidelink communication resources allocated in a logical domain or virtual domain to physical sidelink communication resources (e.g., to improve frequency diversity for a sidelink control channel, a sidelink data channel, or both). Figure 1 -3. As described with reference to FIGs. 1-2, a UE 115 can implement one or more of resource mapping schemes 401 or 402 to map sidelink communication resources allocated in a logical domain or virtual domain to physical sidelink communication resources (e.g., to improve frequency diversity for a sidelink control channel, a sidelink data channel, or both). Figure 2

[0148] ​For example, a UE 115 can use resource units 405 (e.g., mini-slots) to map sidelink resources allocated in a logical domain to physical sidelink resources. A resource unit 405 can represent a dimensional communication resource including a first number of REs (e.g., X REs) and a second number of symbols 430 (e.g., Y OFDM symbols). Resource units 405 can be configured for different resource pools, for example, based on the type of communication traffic allocated to the resource pool 445, and can be configured separately for the SCI portion and data portion (e.g., data channel 415) of the allocated resources. For example, if the first stage SCI 420 occupies the first number of symbols 430 (e.g., the first three symbols 430), the definition or configuration of resource units 405 for the SCI portion can apply to resource mapping for the first number of symbols 430 (e.g., and the configuration of resource units 405 for the data portion can apply to the remaining symbols 430).

[0149] Resource unit mapping (e.g., any combination of different sizes or numbers of resource units 405) can be used to map resources between logical resource units (e.g., as allocated) and physical resource units (e.g., as used for transmission). In the examples shown by resource mapping schemes 401 and 402, the allocated resources can be mapped from a first resource allocation 435 (e.g., a logical resource allocation) to a second resource allocation 440 (e.g., a physical resource allocation). For example, resource units 405 corresponding to the data channel 415, first stage SCI 420, and second stage SCI 425 can be mapped to cover different frequency resources (e.g., a larger or more diverse frequency range). In some cases, resource units 405 corresponding to the data channel 415, first stage SCI 420, and second stage SCI 425 can also be mapped to cover different time resources.

[0150] Such mapping is common to all UEs 115 sharing the same resource pool 445 and can apply to both mode 1 and mode 2 resource allocation using resources from the resource pool 445. In some cases, a portion of the resource pool 445 can be configured to support direct mapping (e.g., without changing resources) of UEs 115 that can use contiguous frequency allocation (e.g., based on a configuration of the UE 115 or based on the communication of the UE 115). Resource mapping schemes 401 and 402 can support both contiguous and non-contiguous frequency resource allocation and intra- and inter-TTI hopping (e.g., based on resource unit 405 granularity and resource mapping configuration).

[0151] In a first example, AGC 410 can be mapped to the same frequencies occupied during the first data or control symbol 430, e.g., as shown by the example of resource mapping scheme 402. Mapping AGC 410 in this way can conserve or reduce power usage at UE 115, and can provide a coarse calibration for AGC. In a second example, AGC 410 can be mapped to frequencies that include every frequency covered by the remapped resource units 405. For example, UE 115 can map AGC 410 to the union of all frequencies of all resource units 405. Mapping AGC 410 in this way can provide a finer calibration for AGC, e.g., for each frequency used for sidelink communications.

[0152] Based on one or more of the examples described herein, a UE 115 can transmit a sidelink packet or communication to another UE 115 (e.g., using a resource mapping). The techniques described herein can increase communication reliability, and thus increase the likelihood of successfully transmitting or receiving a sidelink packet.

[0153] Figure 5A and Figure 5B Respective examples of resource mapping schemes 501 and 502 that support sidelink communication reliability are shown, in accordance with one or more aspects of the present disclosure. In some examples, resource mapping schemes 501 and 502 can implement aspects of wireless communication systems 100 or 200. In some cases, resource mapping schemes 501 and 502 can implement aspects of resource mapping schemes 401 or 402. For example, one or more of resource mapping schemes 501 or 502 can be implemented by a UE 115 (which can represent examples of the UEs 115 described with reference to FIGs. 1-2) or aspects of a UE 115. As described with reference to Figure 1 -4, one or more of resource mapping schemes 501 or 502 can be implemented by a UE 115 to map sidelink communication resources allocated in a logical or virtual domain to physical sidelink communication resources (e.g., to improve frequency diversity for a sidelink control channel, a sidelink data channel, or both). Figure 2

[0154] ​The resource mapping schemes 501 and 502 can illustrate respective examples of mapping resource units (e.g., as described with reference to FIG. 4) from a logical or virtual domain to a physical domain. In some examples, the resource units can represent RBs or RB groups, and the resource mapping schemes 501 and 502 can represent RB mapping schemes or RB group mapping schemes. The RB groups can be configurable (e.g., dynamically configurable) such that different RB group sizes can be supported for the mapping schemes described herein. In accordance with the mapping schemes described herein, the physical resources can be interleaved to increase frequency diversity. A minimum interleaving unit can correspond to one RB or can be smaller, e.g., a number of REs (e.g., four REs) corresponding to an RE group.

[0155] For example, to avoid collisions between sidelink communications, the resource mapping schemes can be common to a cell and can correspond to one or more examples of resource mapping schemes. In a first example, illustrated by the resource mapping scheme 501, the virtual resource units 515 can be mapped to the physical resource units 510 using a pattern based on the indices 525 of the virtual resource units 505. The virtual resource units 505 with even indices 525 can be mapped consecutively to a first set 515 of physical resource units 510 (e.g., a set of consecutive physical resource units 510). Similarly, the virtual resource units 505 with odd indices 525 can be mapped consecutively to a second set 520 of physical resource units 510 (e.g., a set of consecutive physical resource units 510). The virtual resource units 505 with the highest index 525 or the lowest index 525 can be mapped to the same physical resource unit 510. For example, the virtual resource units 505 with indices “0” and “14” can be mapped to the physical resource units 510 with indices “0” and “14,” respectively.

[0156] Based on the resource mapping scheme 501, the virtual resource unit 505 with an index of “1” can be mapped to the physical resource unit with an index of “7” (e.g., a first physical resource unit 510 of the second set 520), the virtual resource unit 505 with an index of “3” can be mapped to the physical resource unit with an index of “8” (e.g., a second physical resource unit 510 of the second set 520), and so on. The virtual resource unit 505 with an index of “2” can be mapped to the physical resource unit with an index of “1” (e.g., a first physical resource unit 510 of the first set 515), the virtual resource unit 505 with an index of “4” can be mapped to the physical resource unit with an index of “2” (e.g., a second physical resource unit 510 of the first set 515), and so on. For example, the virtual resource units 505 can have indices 525 given by an equation such as equation (1):

[0157] j = 2c + r (1)

[0158] where j denotes a respective index 525 of a virtual resource unit 505, r denotes an indicator as to whether the index 525 is even or odd (e.g., can have a value of “0” for even indices and a value of “1” for odd indices), and c denotes a value that can be obtained based on j and r and is subsequently used to determine an index 530 of a corresponding physical resource unit 510. A virtual resource unit 505 having an index 525 given by equation (1) can be mapped to a physical resource unit 510 having an index 530 given by an equation such as equation (2):

[0159] m = r x C + c (2)

[0160] where m denotes a respective index 530 of a physical resource unit 510, c denotes a value obtained using equation (1) based on j and r, r denotes an indicator as to whether the corresponding logical resource unit 505 index 525 is even or odd (e.g., can have a value of “0” for even indices and a value of “1” for odd indices), and C denotes half of the total number of resource units.

[0161] In a second example shown by resource mapping scheme 502, consecutive virtual resource units 505 can be mapped to physical resource units 510 that are separated by at least an offset 525 (e.g., an interleaver depth). For example, a virtual resource unit 505 having an index of “0” can be mapped to a physical resource unit having an index of “0,” a virtual resource unit 505 having an index of “1” can be mapped to a physical resource unit having an index of “4” (e.g., at an offset 525 from index “0”), a virtual resource unit 505 having an index of “2” can be mapped to a physical resource unit having an index of “8” (e.g., at an offset 525 from index “4”), and so on.

[0162] Based on one or more of the examples described herein, a UE 115 can transmit a sidelink packet or communication to another UE 115 (e.g., using resource mapping). The techniques described herein can increase communication reliability, and thereby increase the likelihood of successfully transmitting or receiving a sidelink packet.

[0163] Figure 6 An example of a communication repetition scheme 600 that supports sidelink communication reliability is shown, in accordance with one or more aspects of the present disclosure. In some examples, the communication repetition scheme 600 can implement aspects of the wireless communications system 100 or 200. For example, the communication repetition scheme 600 can be used by a UE 115 (which can represent a UE 115 described with reference to FIGs. 1-2) to transmit a sidelink packet to another UE 115 (which can represent a UE 115 described with reference to FIGs. 1-2). Figure 1-5 described above) or aspects of a UE 115. As described above with reference to FIGS. 1-5, a UE 115 can implement a communication repetition scheme 600 to repeat sidelink communications and increase reliability of sidelink communications. Figure 2 As described above, a communication repetition scheme 600 can be implemented by a UE 115 to repeat sidelink communications and increase reliability of sidelink communications.

[0164] As described above with reference to FIGS. 1-5, a UE 115 can implement a communication repetition scheme 600 to repeat sidelink communications and increase reliability of sidelink communications. Figure 2 As described above, a UE 115 can be configured (e.g., via configuration transmitted by a base station 105, a UE 115, or another UE 115) with an aggregation factor for sidelink packets 605 (e.g., sidelink data channel and / or sidelink control channel communications). The aggregation factor can represent, for example, a number of times a sidelink packet 605 will be repeated before transmitting or receiving feedback for the sidelink packet 605 (e.g., 1, 2, 3, 4, 7, 8, 12, or 16 repetitions). The aggregation factor can be a number configured via RRC signaling, for example, and can or can not include SCI or downlink control information (DCI) activation. In some cases, repetitions of a sidelink packet 605 can be combined for feedback (e.g., using soft HARQ combining), and in some cases, repetitions of a sidelink packet 615 can be used to improve reliability without combining for feedback (e.g., feedback can not be requested by the transmitting UE 115). Feedback configuration can be configured via RRC signaling, for example, and can be based on a capability of the UE 115.

[0165] Repetition of a sidelink packet 605 can reduce latency, for example, by reducing a latency of a feedback process to re-provide information that can not have been received correctly via a sidelink packet 605. Additionally, in mode 1, repetition of a sidelink packet 605 can reduce control transmission overhead (e.g., DCI overhead) for scheduling multiple transmissions. A UE 115 with limited power or bandwidth capabilities can support techniques for repeating a sidelink packet 605 according to an aggregation factor.

[0166] In the example shown by the communication repetition scheme 600, the UE 115 can be configured with an aggregation factor that indicates the UE 115 to repeat the sidelink packet 605 a number of times (e.g., K times). The UE 115 can repeat the sidelink packet 605 in K consecutive TTIs 615 (e.g., slots), e.g., starting with the sidelink packet 605-A in TTI 615-a and ending with the sidelink packet 605-G in TTI 615-b. After transmitting or receiving the sidelink packet 605-G, the UE 115 can prepare and transmit feedback within the feedback occasion 610, or can receive feedback within the feedback occasion 610, e.g., if the sidelink packet is configured for feedback (e.g., if the transmitting UE 115 requests feedback), as indicated by the dashed line in the middle. If feedback is not configured, the UE 115 can not be configured with a feedback occasion 610, as Figure 6 indicated by the dashed line in the middle. If feedback is configured, the feedback can be based on all repetitions of the sidelink packet 605, as described herein. In some cases, the frequency resources used for the repetitions of the sidelink packet 605 can be different, or frequency hopping can occur between the repetitions of the sidelink packet 605 (e.g., as supported by an offset from the transmission layer). In some cases, the frequency resources used for the repetitions of the sidelink packet 605 can be at least partially the same, if not entirely the same.

[0167] In some examples, the repetitions of the sidelink packet 605 can represent blind repetitions, and can be transmitted using a shared resource pool (e.g., a contention-based resource pool 630). For example, the UE 115 (e.g., or another UE 115) can select resources for transmission of the repetitions of the sidelink packet 605 from the contention-based resource pool 630 by autonomously selecting the resources based on a sensing strategy or a priority strategy (e.g., because the resources can be commonly subject to transmission collisions from other UEs 115). For example, the UE 115 (e.g., or another UE 115) can autonomously select resources for transmission of the repetitions of the sidelink packet 605 from the contention-based resource pool 630 based on a configuration for detecting overlapping transmissions 625 (e.g., one or more repetitions of the sidelink packet 605 that overlap with one or more other transmissions 620) or based on a transmission priority 635 (e.g., of the repetitions of the sidelink packet 605).

[0168] Signaling (e.g., RRC signaling) from a base station 105 or another UE 115 can indicate a configuration of the shared resource pool. If feedback for repetitions of the sidelink packet 605 is configured (e.g., in the feedback occasion 610), the UE 115 can be configured to use resources that are not included in the shared resource pool. The RV-IDs for each repetition of the sidelink packet 605 can be cycled from a list of RV-IDs, e.g., selected from one or more lists configured for the UE 115 along with an aggregation factor (e.g., {0, 2, 3, 1}, {0, 0, 0, 0}, or {0, 3, 0, 3}).

[0169] The repetitions of the sidelink packet 605 can be transmitted without scheduling the repetitions using SCI (e.g., SCI 0_1 or SCI 0_2). For example, SCI 0_1 can not be associated with the repetitions of the sidelink packet 605 because the resources for the repetitions can be selected from the contention-based resource pool 630 instead of the scheduled-based resource pool. Similarly, SCI 0_2 can be skipped because the RV-IDs for the repetitions of the sidelink packet 605 can be defined by an upper communication layer.

[0170] Based on one or more of the examples described herein, a UE 115 can transmit a sidelink packet or communication to another UE 115 (e.g., using a repetition scheme). The techniques described herein can improve communication reliability and thus increase the likelihood of successfully transmitting or receiving a sidelink packet.

[0171] Figure 7 An example of a process flow 700 that supports sidelink communication reliability in accordance with one or more aspects of the present disclosure is shown. In some examples, process flow 700 can implement or be implemented by aspects of wireless communication system 100 or 200. For example, the process flow can be implemented by UE 115-c and UE 115-d, which can represent examples of the UEs 115 described with reference to FIG. 1. Figures 1-6 The described UEs 115.

[0172] In the following description of process flow 700, the operations between UE 115-c and UE 115-d can be transmitted in a different order than the order shown, or the operations performed by UE 115-c and UE 115-d can be performed in different orders or at different times. For example, certain operations can also be omitted from process flow 700, or other operations can be added to process flow 700. Although UE 115-c and UE 115-d are shown as performing the operations of process flow 700, some aspects of some operations can also be performed by one or more other wireless devices. For example, a base station 105 can perform some aspects of indicating a configuration to UE 115-c or allocating resources to UE 115-c.

[0173] At 705, UE 115-c can receive or identify a configuration for increasing reliability of sidelink communications (e.g., sidelink data packets). For example, UE 115-c can receive an indication of the configuration from UE 115-d, another UE 115, or a base station 105. In some cases, UE 115-c can identify or determine the configuration and can indicate the configuration to UE 115-d. The configuration can include information about an aggregation factor, an associated resource pool, and an associated feedback. Additionally or alternatively, the configuration can be associated with or include information for mapping communications resources (e.g., logical communications resources) allocated for a sidelink control channel and a sidelink data channel to corresponding physical communications resources.

[0174] At 710, if UE 115-c is configured to map logical communications resources to physical communications resources, UE 115-c can identify first communications resources allocated to UE 115-c for a sidelink control channel and a sidelink data channel. The first communications resources allocated for the sidelink control channel can occupy or cover a first bandwidth. The first communications resources can be allocated to UE 115-c by a base station 105 or by UE 115-d, or UE 115-c can allocate the first communications resources. The first communications resources can be included in a logical domain.

[0175] At 715, if UE 115-c is configured to map logical communications resources to physical communications resources, UE 115-c can map the first communications resources to second communications resources (e.g., physical communications resources) for the sidelink control channel and the sidelink data channel based on the configuration. The second communications resources allocated for the sidelink control channel can cover a second bandwidth that is greater than the first bandwidth.

[0176] The UE 115-c can map resources according to one or more of the examples described herein. For example, the UE 115-c can map resources according to a multiplexing configuration for a sidelink control channel (e.g., including a first stage SCI) and a sidelink data channel (e.g., including a second stage SCI and other data). Additionally or alternatively, the UE 115-c can map resources using one or more resource units and a mapping scheme configured for a resource pool used by the UE 115-c. In some cases, the UE 115-c can map resources using the mapping scheme and respective indices of the one or more resource units.

[0177] At 720, if the UE 115-c is configured with an aggregation factor for repeating the sidelink communication, the UE 115-c can identify a number of repetitions associated with the sidelink communication. The number of repetitions can be configured for the feedback instance and can be based on the aggregation factor configured for the UE 115-c.

[0178] At 725, if the UE 115-c is configured with an aggregation factor for repeating the sidelink communication, the UE 115-c can identify a communication resource pool including one or more contention-based communication resources for the sidelink communication. For example, the UE 115-c can identify a communication resource pool for transmitting repetitions of the sidelink communication. For example, the communication resource pool can be configured (e.g., via configuration signaling) for the UE 115-c and other UEs 115.

[0179] At 730, the UE 115-c can transmit (e.g., send or receive) the sidelink communication with the UE 115-d. For example, if the UE 115-c is configured to map logical communication resources to physical communication resources, the UE 115-c can communicate with the UE 115-d using the second communication resources (e.g., physical communication resources). If the UE 115-c is configured with an aggregation factor for repeating the sidelink communication, the UE 115-c can transmit the sidelink communication using a contention-based communication resource from the communication resource pool and can transmit a repetition of the sidelink communication in each of a number of consecutive time periods associated with the number of repetitions. For example, the UE 115-c can repeat the sidelink communication for a number of consecutive time periods equal to the number of repetitions. Each repetition of the sidelink communication can not be associated with control information for scheduling. For example, control information for scheduling the repetition can not be based on the redundancy information identified by the UE 115-c and / or used based on transmitting the repetition using the contention-based resource.

[0180] Figure 8A block diagram 800 of a device 805 that supports sidelink communication reliability in accordance with one or more aspects of the present disclosure is shown. The device 805 can be an example of aspects of a UE 115 as described herein. The device 805 can include a receiver 810, a communications manager 815, and a transmitter 820. The device 805 can also include a processor. Each of these components can be in communication with one another (e.g., via one or more buses).

[0181] The receiver 810 can receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to sidelink communication reliability, etc.). Information can be passed on to other components of the device 805. The receiver 810 can be an example of aspects of the transceiver 1120 described with reference to FIG. 11. The receiver 810 can utilize a single antenna or a set of antennas. Figure 11 The transmitter 820 can transmit signals generated by other components of the device 805. In some examples, the transmitter 820 can be collocated with a receiver 810 in a transceiver 1120. The

[0182] The communications manager 815 can support wireless communication at a first UE in accordance with examples as disclosed herein. For example, the communications manager 815 can be configured as or otherwise support a means for receiving a configuration associated with mapping of allocated communication resources for a sidelink control channel and a sidelink data channel to corresponding physical communication resources. The communications manager 815 can be configured as or otherwise support a means for mapping, based on the configuration, first communication resources allocated to the first UE for the sidelink control channel and the sidelink data channel to second communication resources for the sidelink control channel and the sidelink data channel, the first communication resources allocated for the sidelink control channel occupying a first bandwidth and the second communication resources for the sidelink control channel covering a second bandwidth that is greater than the first bandwidth. The communications manager 815 can be configured as or otherwise support a means for communicating with a second UE using the second communication resources.

[0183] Additionally or alternatively, the communications manager 815 can support wireless communication at a UE in accordance with examples as disclosed herein. For example, the communications manager 815 can be configured as or otherwise support a means for receiving signaling indicating a pool of communication resources, the pool of communication resources including one or more contention-based communication resources for sidelink communications. The communications manager 815 can be configured as or otherwise support a means for receiving signaling indicating a number of repetitions associated with the pool of communication resources. The communications manager 815 can be configured as or otherwise support a means for transmitting, using a contention-based communication resource from the pool of communication resources, a repetition of a sidelink communication in each of a number of consecutive time periods associated with the number of repetitions, each repetition of the sidelink communication being unassociated with control information for scheduling.

[0184] Additionally or alternatively, the communications manager 815 can support wireless communication at a first UE in accordance with examples as disclosed herein. For example, the communications manager 815 can be configured as or otherwise support a means for receiving a configuration associated with mapping of communication resources allocated for a sidelink control channel and a sidelink data channel to corresponding physical communication resources, the configuration applicable to a communication resource pool, the communication resource pool including first communication resources allocated to the first UE for the sidelink control channel and the sidelink data channel. The communications manager 815 can be configured as or otherwise support a means for mapping logical communication resource units of the first communication resources to physical communication resource units of second communication resources for the sidelink control channel and the sidelink data channel based on the configuration, the logical communication resource units and the physical communication resource units each including a first quantity of resource elements and a second quantity of symbols. The communications manager 815 can be configured as or otherwise support a means for communicating with a second UE using the second communication resources.

[0185] Additionally or alternatively, the communications manager 815 can support wireless communication at a first UE in accordance with examples as disclosed herein. For example, the communications manager 815 can be configured as or otherwise support a means for receiving a configuration associated with mapping of communication resources allocated for a sidelink control channel and a sidelink data channel to corresponding physical communication resources, the configuration for a communication resource pool, the communication resource pool including first communication resources allocated to the first UE for the sidelink control channel and the sidelink data channel. The communications manager 815 can be configured as or otherwise support a means for mapping indices of a plurality of sets of logical communication resource units of the first communication resources to indices of a plurality of sets of physical communication resource units of second communication resources for the sidelink control channel and the sidelink data channel based on the configuration, the plurality of sets of logical communication resource units and the plurality of sets of physical communication resource units each including a first quantity of resource elements and a second quantity of symbols. The communications manager 815 can be configured as or otherwise support a means for communicating with a second UE using the second communication resources.

[0186] The communications manager 815 can receive a configuration associated with mapping of allocated communication resources for a sidelink control channel and a sidelink data channel to corresponding physical communication resources, identify first communication resources allocated to the first UE for the sidelink control channel and the sidelink data channel, the first communication resources allocated for the sidelink control channel occupying a first bandwidth, map the first communication resources to second communication resources for the sidelink control channel and the sidelink data channel based on the configuration, the second communication resources for the sidelink control channel covering a second bandwidth that is greater than the first bandwidth, and communicate with the second UE using the second communication resources.

[0187] The communications manager 815 can also identify a number of repetitions associated with a sidelink communication, identify a communication resource pool including one or more contention-based communication resources for the sidelink communication, and transmit a repetition of the sidelink communication in each of a number of consecutive time periods associated with the number of repetitions using a contention-based communication resource from the communication resource pool, where each repetition of the sidelink communication is not associated with control information for scheduling. The communications manager 815 can be an example of aspects of the communications manager 1110 described herein.

[0188] The communications manager 815 can be an example of means for performing various aspects of managing sidelink communications as described herein. The communications manager 815, or its sub-components, can be implemented in hardware, e.g., in communications management circuitry. The circuitry can comprise a processor, Digital Signal Processor (DSP), an Application-Specific Integrated Circuit (ASIC), a Field

[0189] In another implementation, the communications manager 815, or its sub-components, can be implemented in code (e.g., as communications management software or firmware) executed by a processor, or any combination thereof. If implemented in code executed by a processor, the functions of the communications manager 815, or its sub-components, can be executed by a general-purpose processor, a DSP, an ASIC, an FPGA or other programmable logic device.

[0190] In some examples, the communications manager 815 can be configured to perform various operations (e.g., receiving, determining, transmitting) using or otherwise in cooperation with the receiver 810, the transmitter 820, or both.

[0191] The communication manager 815 or its subcomponents may be physically located at various locations, including being distributed such that one or more physical components perform some functions at different physical locations. In some examples, the communication manager 815 or its subcomponents may be separate and distinct components, according to various aspects of this disclosure. In some examples, the communication manager 815 or its subcomponents may be combined with one or more other hardware components, including but not limited to input / output (I / O) components, transceivers, network servers, other computing devices, one or more other components described in this disclosure, or combinations thereof.

[0192] Transmitter 820 can transmit signals generated by other components of device 805. In some examples, transmitter 820 can be co-located with receiver 810 in a transceiver module. For example, transmitter 820 can be a reference... Figure 11 Examples of various aspects of the transceiver 1120 are described. The transmitter 820 can utilize a single antenna or a set of antennas.

[0193] In one or more aspects, the techniques described herein, performed by the communication manager 815, can support improvements in sidelink communication. For example, the communication manager 815 can improve communication quality at a wireless device (e.g., UE 115) by supporting increased remapping of allocated resources or blind duplication of sidelink communication. Based on remapping resources or duplicating sidelink communication, the improved communication quality can lead to improved link performance and reduced overhead. Therefore, the communication manager 815 can save power and increase battery life at the wireless device (e.g., UE 115) by strategically improving communication quality.

[0194] Figure 9 A block diagram 900 of a device 905 supporting side-link communication reliability according to one or more aspects of this disclosure is shown. Device 905 may be an example of aspects of device 805 or UE 115 as described herein. Device 905 may include a receiver 910, a transmitter 915, and a communication manager 920. Device 905 may also include a processor. Each of these components may communicate with each other (e.g., via one or more buses).

[0195] Receiver 910 can receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to the reliability of sidelink communication). It can transmit this information to other components of device 905. Receiver 910 can be a reference... Figure 11 Examples of various aspects of the transceiver 1120 are described. The receiver 910 can utilize a single antenna or a set of antennas.

[0196] Transmitter 915 may provide a unit for transmitting signals generated by other components of device 905. For example, transmitter 915 may transmit information (such as packets, user data, control information, or any combination thereof) associated with various information channels (e.g., control channels, data channels, information channels related to the reliability of sidelink communication). In some examples, transmitter 915 may be co-located with receiver 910 in a transceiver module. Transmitter 915 may utilize a single antenna or a collection of multiple antennas.

[0197] Device 905 or its various components may be examples of units for performing various aspects of sidelink communication reliability as described herein. For example, communication manager 920 may include configuration receiving component 925, resource mapping component 930, sidelink communication component 935, sidelink resource pooling component 940, sidelink duplication component 945, or any combination thereof. Communication manager 920 may be examples of various aspects of communication manager 815 as described herein. In some examples, communication manager 920 or its various components may be configured to use receiver 910, transmitter 915, or both, or otherwise cooperate with receiver 910, transmitter 915, or both to perform various operations (e.g., receiving, monitoring, transmitting). For example, communication manager 920 may receive information from receiver 910, send information to transmitter 915, or integrate with receiver 910, transmitter 915, or both to receive information, send information, or perform various other operations as described herein.

[0198] According to the examples disclosed herein, the communication manager 920 can support wireless communication at the first UE. The configuration receiving component 925 can be configured or otherwise supported to receive configuration associated with mapping communication resources allocated for the sidelink control channel and sidelink data channel to corresponding physical communication resources. The resource mapping component 930 can be configured or otherwise supported to map first communication resources allocated to the first UE for the sidelink control channel and sidelink data channel to second communication resources for the sidelink control channel and sidelink data channel based on the configuration, wherein the first communication resources allocated for the sidelink control channel occupy a first bandwidth, and the second communication resources for the sidelink control channel cover a second bandwidth larger than the first bandwidth. The sidelink communication component 935 can be configured or otherwise supported to communicate with the second UE using the second communication resources.

[0199] Alternatively or additionally, according to the examples disclosed herein, the communication manager 920 may support wireless communication at the UE. The sidelink resource pool component 940 may be configured or otherwise supported to receive signaling indicating a communication resource pool, which includes one or more contention-based communication resources for sidelink communication. The sidelink repeat component 945 may be configured or otherwise supported to receive signaling indicating the number of repeats associated with the communication resource pool. The sidelink communication component 935 may be configured or otherwise supported to perform the following operation: using contention-based communication resources from the communication resource pool to transmit repeats of sidelink communication in each of several consecutive time periods associated with that number of repeats, each repeat of sidelink communication not associated with control information for scheduling.

[0200] Alternatively or additionally, according to the examples disclosed herein, the communication manager 920 may support wireless communication at the first UE. The configuration receiving component 925 may be configured or otherwise supported to receive a configuration associated with mapping communication resources allocated for the sidelink control channel and sidelink data channel to corresponding physical communication resources, the configuration being applicable to a communication resource pool including first communication resources allocated to the first UE for the sidelink control channel and sidelink data channel. The resource mapping component 930 may be configured or otherwise supported to map logical communication resource units of the first communication resources to physical communication resource units of the second communication resources for the sidelink control channel and sidelink data channel based on the configuration, the logical communication resource units and physical communication resource units each including a first number of resource elements and a second number of symbols. The sidelink communication component 935 may be configured or otherwise supported to communicate with the second UE using the second communication resources.

[0201] Alternatively or concurrently, according to the examples disclosed herein, the communication manager 920 may support wireless communication at the first UE. The configuration receiving component 925 may be configured or otherwise supported to receive a configuration associated with mapping communication resources allocated for the sidelink control channel and sidelink data channel to corresponding physical communication resources, the configuration being for a communication resource pool including first communication resources allocated to the first UE for the sidelink control channel and sidelink data channel. The resource mapping component 930 may be configured or otherwise supported to map, based on the configuration, indices of multiple sets of logical communication resource elements of the first communication resources to indices of multiple sets of physical communication resource elements of the second communication resources for the sidelink control channel and sidelink data channel, each of the multiple sets of logical communication resource elements and the multiple sets of physical communication resource elements including a first number of resource elements and a second number of symbols. The sidelink communication component 935 may be configured or otherwise supported to communicate with the second UE using the second communication resources.

[0202] The processor of the wireless device (e.g., controls the receiver 910, transmitter 915, or as shown in the reference) Figure 11 The transceiver 1120 described can improve communication reliability and quality. Compared to other systems and technologies, such as those that do not support remapping of resources or blind duplication of sidelink communication (which may degrade communication quality and increase power consumption), the increased communication quality can reduce power consumption (e.g., via reference). Figure 10 (The implementation of the described system components). Furthermore, the processor of UE 115 can identify one or more aspects of the sidelink resource configuration. The processor of the radio device can use the sidelink resource configuration to perform one or more actions that can result in increased communication quality and power consumption, as well as power savings and extended battery life at the radio device (e.g., by strategically supporting resource remapping or communication duplication, which can improve communication quality), and other improvements.

[0203] Figure 10A block diagram 1000 of a communication manager 1020 supporting sidelink communication reliability according to various aspects of this disclosure is shown. The communication manager 1020 may be an example of a communication manager 815, a communication manager 920, or aspects thereof as described herein. The communication manager 1020 or its various components may be examples of units for performing various aspects of sidelink communication reliability as described herein. For example, the communication manager 1020 may include a configuration receiving component 1025, a resource mapping component 1030, a sidelink communication component 1035, a sidelink resource pool component 1040, a sidelink duplication component 1045, or any combination thereof. Each of these components may communicate with each other directly or indirectly (e.g., via one or more buses).

[0204] According to the examples disclosed herein, the communication manager 1020 can support wireless communication at the first UE. The configuration receiving component 1025 can be configured or otherwise supported to receive configuration associated with mapping communication resources allocated for the sidelink control channel and sidelink data channel to corresponding physical communication resources. The resource mapping component 1030 can be configured or otherwise supported to map first communication resources allocated to the first UE for the sidelink control channel and sidelink data channel to second communication resources for the sidelink control channel and sidelink data channel based on the configuration, wherein the first communication resources allocated for the sidelink control channel occupy a first bandwidth, and the second communication resources for the sidelink control channel cover a second bandwidth larger than the first bandwidth. The sidelink communication component 1035 can be configured or otherwise supported to communicate with the second UE using the second communication resources.

[0205] In some examples, resource mapping component 1030 may be configured or otherwise support units for mapping consecutive symbols of a first-level SCI to the same first frequency range, wherein at least two subsets of the first-level SCI are separated by frequency ranges. In some examples, resource mapping component 1030 may be configured or otherwise support units for mapping consecutive symbols of a second-level SCI to the same second frequency range, wherein the second frequency range is different from and interleaved with the first frequency range.

[0206] In some examples, the resource mapping component 1030 may be configured or otherwise supported as a unit for multiplexing the first-level SCI and the second-level SCI to cover the bandwidth of the sidelink subchannel. In some examples, the resource mapping component 1030 may be configured or otherwise supported as a unit for multiplexing the first-level SCI and the second-level SCI to cover a bandwidth larger than that of the sidelink subchannel.

[0207] In some examples, resource mapping component 1030 may be configured or otherwise supported for mapping consecutive symbols of the first-level SCI to units that are at least partially different from the first frequency range. In some examples, resource mapping component 1030 may be configured or otherwise supported for mapping consecutive symbols of the second-level SCI to units that are at least partially different from the second frequency range interleaved with the corresponding first frequency range.

[0208] In some examples, the resource mapping component 1030 may be configured or otherwise supported as a unit for multiplexing the first-level SCI and the second-level SCI to cover the bandwidth of the sidelink subchannel. In some examples, the resource mapping component 1030 may be configured or otherwise supported as a unit for multiplexing the first-level SCI and the second-level SCI to cover a bandwidth larger than that of the sidelink subchannel.

[0209] In some examples, the second bandwidth includes a second communication resource that is different from the first communication resource. In some examples, the configuration receiving component 1025 may be configured or otherwise supported as a unit for receiving signaling indicating configuration from a base station, a broadcast UE, or both.

[0210] Alternatively or additionally, according to the examples disclosed herein, the communication manager 1020 may support wireless communication at the UE. The sidelink resource pool component 1040 may be configured or otherwise supported for receiving signaling indicating a communication resource pool, which includes one or more contention-based communication resources for sidelink communication. The sidelink repeat component 1045 may be configured or otherwise supported for receiving signaling indicating the number of repeats associated with the communication resource pool. In some examples, the sidelink communication component 1035 may be configured or otherwise supported for transmitting repeats of sidelink communication in each of several consecutive time periods associated with that number of repeats using contention-based communication resources from the communication resource pool, each repeat of the sidelink communication not associated with control information for scheduling.

[0211] In some examples, the sidelink resource pool component 1040 may be configured or otherwise supported as a unit for performing the following operations: selecting contention-based communication resources from the communication resource pool for repetition of sidelink communication based on configurations for transmission priority or for detecting overlapping transmissions. In some examples, the sidelink communication component 1035 may be configured or otherwise supported as a unit for transmitting consecutive repetitions of sidelink communication using at least partially different frequency ranges.

[0212] In some examples, the sidelink repeat component 1045 can be configured or otherwise support a unit for identifying the RV-ID of each repeat in a repeat for sidelink communication based on a configured pattern.

[0213] In some examples, the configuration receiving component 1025 may be configured or otherwise supported to enable elements for receiving first signaling from a broadcast UE, the first signaling indicating a communication resource pool, a number of repetitions, or both. In some examples, the configuration receiving component 1025 may be configured or otherwise supported to enable elements for receiving first signaling from a base station, the first signaling indicating a communication resource pool, a number of repetitions, or both.

[0214] In some examples, the sidelink communication component 1035 may be configured or otherwise support a unit for performing a combination process based on repetitions of sidelink communication. In some examples, the number of repetitions is associated with feedback. In some examples, the number of repetitions is not associated with feedback.

[0215] Alternatively or additionally, according to the examples disclosed herein, the communication manager 1020 may support wireless communication at the first UE. In some examples, the configuration receiving component 1025 may be configured or otherwise supported to receive a configuration associated with mapping communication resources allocated for the sidelink control channel and sidelink data channel to corresponding physical communication resources, the configuration being applicable to a communication resource pool including first communication resources allocated to the first UE for the sidelink control channel and sidelink data channel. In some examples, the resource mapping component 1030 may be configured or otherwise supported to map logical communication resource units of the first communication resource to physical communication resource units of the second communication resource for the sidelink control channel and sidelink data channel based on the configuration, the logical communication resource units and physical communication resource units each including a first number of REs and a second number of symbols. In some examples, the sidelink communication component 1035 may be configured or otherwise supported to communicate with the second UE using the second communication resources.

[0216] In some examples, the first communication resource allocated for the sidelink control channel occupies a first bandwidth, and the second communication resource for the sidelink control channel covers a second bandwidth larger than the first bandwidth. In some examples, the first number of REs and the second number of symbols are based on the communication type, which includes control information, data, or both. In some examples, the first number of REs and the second number of symbols are based on a communication resource pool, or the service type of the communication resource pool, or both.

[0217] In some examples, the resource mapping component 1030 may be configured or otherwise support units for mapping AGC communication to a range of frequencies covered in the first symbol of the second communication resource. In some examples, the resource mapping component 1030 may be configured or otherwise support units for mapping AGC communication to a range of frequencies covered in all symbols of the symbols of the second communication resource.

[0218] In some examples, the configuration receiving component 1025 may be configured or otherwise supported as a unit for receiving signaling indicating configuration from a base station, a broadcast UE, or both.

[0219] Alternatively or additionally, according to the examples disclosed herein, the communication manager 1020 may support wireless communication at the first UE. In some examples, the configuration receiving component 1025 may be configured or otherwise supported to receive a configuration associated with mapping communication resources allocated for the sidelink control channel and sidelink data channel to corresponding physical communication resources, the configuration being for a communication resource pool including first communication resources allocated to the first UE for the sidelink control channel and sidelink data channel. In some examples, the resource mapping component 1030 may be configured or otherwise supported to map, based on the configuration, indices of a plurality of logical communication resource element sets of the first communication resources to indices of a plurality of physical communication resource element sets of the second communication resources for the sidelink control channel and sidelink data channel, the plurality of logical communication resource element sets and the plurality of physical communication resource element sets each including a first number of REs and a second number of symbols. In some examples, the sidelink communication component 1035 may be configured or otherwise supported to communicate with the second UE using the second communication resources.

[0220] In some examples, the first communication resource allocated for the sidelink control channel occupies the first bandwidth, and the second communication resource for the sidelink control channel covers a second bandwidth that is larger than the first bandwidth.

[0221] In some examples, resource mapping component 1030 may be configured or otherwise supported as a unit for performing the following operation: mapping consecutive even indices of a plurality of logical communication resource unit sets to consecutive indices of a first subset of a plurality of physical communication resource unit sets. In some examples, resource mapping component 1030 may be configured or otherwise supported as a unit for mapping consecutive odd indices of a plurality of logical communication resource unit sets to consecutive indices of a second subset of a plurality of physical communication resource unit sets.

[0222] In some examples, the indices of multiple physical communication resource unit sets, which are associated with consecutive indices of multiple logical communication resource unit sets, are separated by index offsets.

[0223] In some examples, the configuration receiving component 1025 may be configured or otherwise supported as a unit for receiving signaling indicating configuration from a base station, a broadcast UE, or both.

[0224] Figure 11 A diagram of a system 1100 including a device 1105 supporting sidelink communication reliability, according to one or more aspects of this disclosure, is shown. Device 1105 may be an example of device 805, device 905, or UE 115 as described herein, or a component including device 805, device 905, or UE 115. Device 1105 may include components for bidirectional voice and data communication (including components for transmitting and receiving communications), including a communication manager 1110, an I / O controller 1115, a transceiver 1120, an antenna 1125, a memory 1130, and a processor 1140. These components may communicate electronically via one or more buses (e.g., bus 1145).

[0225] According to the examples disclosed herein, the communication manager 1110 may support wireless communication at the first UE. For example, the communication manager 1110 may be configured or otherwise supported to include units for receiving configurations associated with mapping communication resources allocated for the sidelink control channel and sidelink data channel to corresponding physical communication resources. The communication manager 1110 may be configured or otherwise supported to include units for performing the following operations: mapping first communication resources allocated to the first UE for the sidelink control channel and sidelink data channel to second communication resources for the sidelink control channel and sidelink data channel based on the configuration, wherein the first communication resources allocated for the sidelink control channel occupy a first bandwidth, and the second communication resources for the sidelink control channel cover a second bandwidth larger than the first bandwidth. The communication manager 1110 may be configured or otherwise supported to include units for communicating with the second UE using the second communication resources.

[0226] Alternatively or additionally, according to the examples disclosed herein, the communication manager 1110 may support wireless communication at the UE. For example, the communication manager 1110 may be configured or otherwise supported to include elements for receiving signaling indicative of a communication resource pool, which includes one or more contention-based communication resources for sidelink communication. The communication manager 1110 may be configured or otherwise supported to include elements for receiving signaling indicative of the number of repetitions associated with the communication resource pool. The communication manager 1110 may be configured or otherwise supported to include elements for transmitting repetitions of sidelink communication in each of several consecutive time periods associated with that number of repetitions using contention-based communication resources from the communication resource pool, each repetition of sidelink communication not associated with control information for scheduling.

[0227] Alternatively or additionally, according to the examples disclosed herein, the communication manager 1110 may support wireless communication at the first UE. For example, the communication manager 1110 may be configured or otherwise support units for receiving a configuration associated with mapping communication resources allocated for sidelink control channels and sidelink data channels to corresponding physical communication resources, the configuration being suitable for a communication resource pool including first communication resources allocated to the first UE for the sidelink control channels and sidelink data channels. The communication manager 1110 may be configured or otherwise support units for performing the following operation: mapping logical communication resource units of the first communication resources to physical communication resource units of the second communication resources for the sidelink control channels and sidelink data channels based on the configuration, the logical communication resource units and physical communication resource units each including a first number of REs and a second number of symbols. The communication manager 1110 may be configured or otherwise support units for communicating with the second UE using the second communication resources.

[0228] Alternatively or additionally, according to the examples disclosed herein, the communication manager 1110 may support wireless communication at the first UE. For example, the communication manager 1110 may be configured or otherwise supported to include elements for receiving a configuration associated with mapping communication resources allocated for sidelink control channels and sidelink data channels to corresponding physical communication resources, the configuration for a communication resource pool including first communication resources allocated to the first UE for the sidelink control channels and sidelink data channels. The communication manager 1110 may be configured or otherwise supported to include elements for performing the following operation: mapping, based on the configuration, indices of multiple sets of logical communication resource elements of the first communication resources to indices of multiple sets of physical communication resource elements of the second communication resources for the sidelink control channels and sidelink data channels, each of the multiple sets of logical communication resource elements and the multiple sets of physical communication resource elements including a first number of REs and a second number of symbols. The communication manager 1110 may be configured or otherwise supported to include elements for communicating with the second UE using the second communication resources.

[0229] The communication manager 1110 can perform the following operations: receive a configuration associated with mapping communication resources allocated for the sidelink control channel and the sidelink data channel to corresponding physical communication resources; identify a first communication resource allocated to the first UE for the sidelink control channel and the sidelink data channel, wherein the first communication resource allocated for the sidelink control channel occupies a first bandwidth; map the first communication resource to a second communication resource for the sidelink control channel and the sidelink data channel based on the configuration, wherein the second communication resource for the sidelink control channel covers a second bandwidth larger than the first bandwidth; and communicate with the second UE using the second communication resource.

[0230] The communication manager 1110 may also perform the following operations: identify the number of repetitions associated with the sidelink communication; identify a communication resource pool including one or more contention-based communication resources for the sidelink communication; and use the contention-based communication resources from the communication resource pool to transmit the repetitions of the sidelink communication in each of several consecutive time periods associated with the number of repetitions, wherein each repetition of the sidelink communication is not associated with control information for scheduling.

[0231] I / O controller 1115 can manage input and output signals for device 1105. I / O controller 1115 can also manage peripheral devices not integrated into device 1105. In some cases, I / O controller 1115 can represent a physical connection or port to an external peripheral device. In some cases, I / O controller 1115 can utilize, for example... The operating system may be a known operating system. In other cases, the I / O controller 1115 may represent or interact with a modem, keyboard, mouse, touchscreen, or similar device. In some cases, the I / O controller 1115 may be implemented as part of the processor. In some cases, a user may interact with the device 1105 via the I / O controller 1115 or via hardware components controlled by the I / O controller 1115.

[0232] Transceiver 1120 can communicate bidirectionally via one or more antennas, wired or wireless links as described above. For example, transceiver 1120 can represent a wireless transceiver and can communicate bidirectionally with another wireless transceiver. Transceiver 1120 may also include a modem for modulating packets and providing the modulated packets to the antenna for transmission, and for demodulating packets received from the antenna.

[0233] In some cases, a wireless device may include a single antenna 1125. However, in other cases, the device may have more than one antenna 1125, and the antenna 1125 may be able to transmit or receive multiple wireless transmissions simultaneously.

[0234] Memory 1130 may include random access memory (RAM) and read-only memory (ROM). Memory 1130 may store computer-readable, computer-executable code 1135, which includes instructions that, when executed, cause the processor to perform the various functions described herein. In some cases, in addition to this, memory 1130 may also contain a basic I / O system (BIOS) that controls basic hardware or software operations, such as interaction with peripheral components or devices.

[0235] Processor 1140 may include intelligent hardware devices (e.g., general-purpose processors, DSPs, CPUs, microcontrollers, ASICs, FPGAs, programmable logic devices, discrete gate or transistor logic components, discrete hardware components, or any combination thereof). In some cases, processor 1140 may be configured to use a memory controller to operate a memory array. In other cases, the memory controller may be integrated into processor 1140. Processor 1140 may be configured to execute computer-readable instructions stored in memory (e.g., memory 1130) to cause device 1105 to perform various functions (e.g., functions or tasks supporting sidelink communication reliability).

[0236] Code 1135 may include instructions for implementing various aspects of this disclosure, including instructions for supporting wireless communication. Code 1135 may be stored in a non-transitory computer-readable medium (e.g., system memory or other types of memory). In some cases, code 1135 may not be directly executable by processor 1140, but may cause a computer (e.g., when compiled and executed) to perform the functions described herein.

[0237] Figure 12 A flowchart illustrating a method 1200 for supporting side-link communication reliability according to various aspects of this disclosure is shown. The operation of method 1200 can be implemented by a UE or its components as described herein. For example, the operation of method 1200 can be implemented by, as referred to... Figures 1 to 11 The UE 115 described is used to perform this function. In some examples, the UE can execute a set of instructions to control the functional units of the UE to perform the described function. Alternatively, the UE can use dedicated hardware to perform aspects of the described function.

[0238] At 1205, the method may include receiving a configuration associated with mapping communication resources allocated for the sidelink control channel and the sidelink data channel to corresponding physical communication resources. The operation of 1205 may be performed according to examples disclosed herein. In some examples, aspects of the operation of 1205 may be performed by a configuration receiving component 1025 as described with reference to 10.

[0239] At 1210, the method may include: mapping first communication resources allocated to a first UE for a sidelink control channel and a sidelink data channel to second communication resources for the sidelink control channel and the sidelink data channel based on a configuration, wherein the first communication resources allocated for the sidelink control channel occupy a first bandwidth, and the second communication resources for the sidelink control channel cover a second bandwidth larger than the first bandwidth. The operation of 1210 may be performed according to examples as disclosed herein. In some examples, aspects of the operation of 1210 may be performed by a resource mapping component 1030 as described with reference to 10.

[0240] At 1215, the method may include communicating with a second UE using a second communication resource. The operation of 1215 may be performed according to examples disclosed herein. In some examples, aspects of the operation of 1215 may be performed by a sidelink communication component 1035 as described with reference to 10.

[0241] Figure 13A flowchart illustrating a method 1300 for supporting side-link communication reliability according to various aspects of this disclosure is shown. Operation of method 1300 can be implemented by a UE or its components as described herein. For example, operation of method 1300 can be implemented by, as referred to... Figures 1 to 11 The UE 115 described is used to perform this function. In some examples, the UE can execute a set of instructions to control the functional units of the UE to perform the described function. Alternatively, the UE can use dedicated hardware to perform aspects of the described function.

[0242] At 1305, the method may include: receiving signaling indicative of a communication resource pool, the communication resource pool comprising one or more contention-based communication resources for sidelink communication. The operation of 1305 may be performed according to examples as disclosed herein. In some examples, aspects of the operation of 1305 may be performed by a sidelink resource pool component 1040 as described with reference to 10.

[0243] At 1310, the method may include receiving signaling indicating the number of repetitions associated with a communication resource pool. The operation of 1310 may be performed according to examples disclosed herein. In some examples, aspects of the operation of 1310 may be performed by a sidelink repetition component 1045 as described with reference to 10.

[0244] At 1315, the method may include: using contention-based communication resources from a communication resource pool to transmit repetitions of the sidelink communication in each of several consecutive time periods associated with the number of repetitions, each repetition of the sidelink communication not associated with control information for scheduling. The operation of 1315 may be performed according to examples as disclosed herein. In some examples, aspects of the operation of 1315 may be performed by a sidelink communication component 1035 as described with reference to 10.

[0245] Figure 14 A flowchart illustrating a method 1400 for supporting side-link communication reliability according to various aspects of this disclosure is shown. The operation of method 1400 can be implemented by a UE or its components as described herein. For example, the operation of method 1400 can be implemented by, as referred to... Figures 1 to 11 The UE 115 described is used to perform this function. In some examples, the UE can execute a set of instructions to control the functional units of the UE to perform the described function. Alternatively, the UE can use dedicated hardware to perform aspects of the described function.

[0246] At 1405, the method may include: receiving a configuration associated with mapping communication resources allocated for the sidelink control channel and the sidelink data channel to corresponding physical communication resources, the configuration being applied to a communication resource pool including first communication resources allocated to the first UE for the sidelink control channel and the sidelink data channel. The operation of 1405 may be performed according to examples as disclosed herein. In some examples, aspects of the operation of 1405 may be performed by a configuration receiving component 1025 as described with reference to 10.

[0247] At 1410, the method may include: mapping logical communication resource units of a first communication resource to physical communication resource units of a second communication resource for a sidelink control channel and a sidelink data channel based on a configuration, wherein the logical communication resource units and the physical communication resource units each include a first number of REs and a second number of symbols. The operation of 1410 may be performed according to examples as disclosed herein. In some examples, aspects of the operation of 1410 may be performed by a resource mapping component 1030 as described with reference to 10.

[0248] At 1415, the method may include communicating with a second UE using a second communication resource. The operation at 1415 may be performed according to examples disclosed herein. In some examples, aspects of the operation at 1415 may be performed by a sidelink communication component 1035 as described with reference to 10.

[0249] Figure 15 A flowchart illustrating a method 1500 for supporting side-link communication reliability according to various aspects of this disclosure is shown. The operation of method 1500 can be implemented by a UE or its components as described herein. For example, the operation of method 1500 can be implemented by, as referred to... Figures 1 to 11 The UE 115 described is used to perform this function. In some examples, the UE can execute a set of instructions to control the functional units of the UE to perform the described function. Alternatively, the UE can use dedicated hardware to perform aspects of the described function.

[0250] At 1505, the method may include: receiving a configuration associated with mapping communication resources allocated for the sidelink control channel and the sidelink data channel to corresponding physical communication resources, the configuration being for a communication resource pool, the communication resource pool including first communication resources allocated to the first UE for the sidelink control channel and the sidelink data channel. The operation of 1505 may be performed according to examples as disclosed herein. In some examples, aspects of the operation of 1505 may be performed by a configuration receiving component 1025 as described with reference to 10.

[0251] At 1510, the method may include: mapping, based on configuration, an index of a plurality of logical communication resource element sets of a first communication resource to an index of a plurality of physical communication resource element sets of a second communication resource for a sidelink control channel and a sidelink data channel, wherein the plurality of logical communication resource element sets and the plurality of physical communication resource element sets each include a first number of REs and a second number of symbols. The operation of 1510 may be performed according to examples as disclosed herein. In some examples, aspects of the operation of 1510 may be performed by a resource mapping component 1030 as described with reference to 10.

[0252] At 1515, the method may include communicating with a second UE using a second communication resource. The operation of 1515 may be performed according to examples disclosed herein. In some examples, aspects of the operation of 1515 may be performed by a sidelink communication component 1035 as described with reference to 10.

[0253] Figure 16 A flowchart illustrating a method 1600 for supporting side-link communication reliability according to one or more aspects of this disclosure is shown. Operation of method 1600 can be implemented by a UE 115 or its components as described herein. For example, operation of method 1600 can be implemented by, as referred to... Figures 8 to 11 The communication manager described below is used for execution. In some examples, the UE can execute a set of instructions to control the UE's functional units to perform the functions described below. Alternatively, the UE can use dedicated hardware to perform aspects of the functions described below.

[0254] At 1605, the UE can receive a configuration associated with mapping communication resources allocated for the sidelink control channel and sidelink data channel to corresponding physical communication resources. Operation at 1605 can be performed according to the methods described herein. In some examples, aspects of operation at 1605 can be derived from, as referenced... Figures 8 to 11 The described configuration receives the component to execute.

[0255] At 1610, the UE can identify first communication resources allocated to the first UE for the sidelink control channel and the sidelink data channel, wherein the first communication resources allocated for the sidelink control channel occupy a first bandwidth. Operation 1610 can be performed according to the method described herein. In some examples, aspects of the operation of 1610 can be derived as described in reference... Figures 8 to 11 The first communication resource component described is used for execution.

[0256] At point 1615, the UE can, based on configuration, map a first communication resource to a second communication resource for both the sidelink control channel and the sidelink data channel, wherein the second communication resource for the sidelink control channel covers a second bandwidth larger than the first bandwidth. The operation at point 1615 can be performed according to the method described herein. In some examples, aspects of the operation at point 1615 can be derived from, as referenced... Figures 8 to 11 The second communication resource component described is used for execution.

[0257] At point 1620, the UE can communicate with a second UE using the second communication resources. The operation at point 1620 can be performed according to the method described herein. In some examples, aspects of the operation at point 1620 can be derived from, as referenced... Figures 8 to 11 The described side link communication component is used to perform this.

[0258] Figure 17 A flowchart illustrating a method 1700 for supporting side-link communication reliability according to one or more aspects of this disclosure is shown. Operation of method 1700 can be implemented by a UE 115 or its components as described herein. For example, operation of method 1700 can be implemented by, as referenced... Figures 8 to 11 The communication manager described below is used for execution. In some examples, the UE can execute a set of instructions to control the UE's functional units to perform the functions described below. Alternatively, the UE can use dedicated hardware to perform aspects of the functions described below.

[0259] At 1705, the UE can receive a configuration associated with mapping communication resources allocated for the sidelink control channel and sidelink data channel to corresponding physical communication resources. Operation at 1705 can be performed according to the methods described herein. In some examples, aspects of operation at 1705 can be derived from, as referenced... Figures 8 to 11 The described configuration receives the component to execute.

[0260] At 1710, the UE can identify the first communication resources allocated to the first UE for the sidelink control channel and the sidelink data channel, wherein the first communication resources allocated for the sidelink control channel occupy a first bandwidth. The operation at 1710 can be performed according to the method described herein. In some examples, aspects of the operation at 1710 can be derived from, as referenced... Figures 8 to 11 The first communication resource component described is used for execution.

[0261] At 1715, the UE can, based on configuration, map a first communication resource to a second communication resource for the sidelink control channel and the sidelink data channel, wherein the second communication resource for the sidelink control channel covers a second bandwidth larger than the first bandwidth. The operation at 1715 can be performed according to the method described herein. In some examples, aspects of the operation at 1715 can be derived as described in reference... Figures 8 to 11 The second communication resource component described is used for execution.

[0262] At 1720, the UE can map logical communication resource elements of the first communication resource to physical communication resource elements of the second communication resource based on a mapping for a communication resource pool including the first communication resource, wherein the logical communication resource element and the physical communication resource element each include a first number of resource elements and a second number of symbols. The operation at 1720 can be performed according to the method described herein. In some examples, aspects of the operation at 1720 can be derived from, as referenced... Figures 8 to 11 The second communication resource component described is used for execution.

[0263] At point 1725, the UE can communicate with a second UE using the second communication resource. The operation at point 1725 can be performed according to the method described herein. In some examples, aspects of the operation at point 1725 can be derived from, as referenced... Figures 8 to 11 The described side link communication component is used to perform this.

[0264] Figure 18 A flowchart illustrating a method 1800 for supporting side-link communication reliability according to one or more aspects of this disclosure is shown. Operation of method 1800 can be implemented by a UE 115 or its components as described herein. For example, operation of method 1800 can be implemented by, as referred to... Figures 8 to 11 The communication manager described below is used for execution. In some examples, the UE can execute a set of instructions to control the UE's functional units to perform the functions described below. Alternatively, the UE can use dedicated hardware to perform aspects of the functions described below.

[0265] At 1805, the UE can identify the number of repetitions associated with sidelink communication. Operation at 1805 can be performed according to the method described herein. In some examples, aspects of operation at 1805 can be determined by referring to... Figures 8 to 11 The described side-link repeating component is used for execution.

[0266] At point 1810, the UE can identify a communication resource pool comprising one or more contention-based communication resources for sidelink communication. Operation at point 1810 can be performed according to the methods described herein. In some examples, aspects of operation at point 1810 can be determined by reference to... Figures 8 to 11 The resource pool is described and the component is used for execution.

[0267] At point 1815, the UE can use contention-based communication resources from the communication resource pool to transmit repetitions of sidelink communication in each of several consecutive time periods associated with that number of repetitions, wherein each repetition of sidelink communication is not associated with control information used for scheduling. The operation at point 1815 can be performed according to the method described herein. In some examples, aspects of the operation at point 1815 can be derived from, as referenced... Figures 8 to 11 The described side link communication component is used to perform this.

[0268] Figure 19 A flowchart illustrating a method 1900 for supporting side-link communication reliability according to one or more aspects of this disclosure is shown. Operation of method 1900 can be implemented by a UE 115 or its components as described herein. For example, operation of method 1900 can be implemented by, as referred to... Figures 8 to 11 The communication manager described below is used for execution. In some examples, the UE can execute a set of instructions to control the UE's functional units to perform the functions described below. Alternatively, the UE can use dedicated hardware to perform aspects of the functions described below.

[0269] At 1905, the UE can identify the number of repetitions associated with sidelink communication. Operation at 1905 can be performed according to the method described herein. In some examples, aspects of operation at 1905 can be determined by referring to... Figures 8 to 11 The described side-link repeating component is used for execution.

[0270] At point 1910, the UE can identify a pool of communication resources including one or more contention-based communication resources for sidelink communication. Operation at point 1910 can be performed according to the methods described herein. In some examples, aspects of operation at point 1910 can be determined by reference to... Figures 8 to 11 The resource pool is described and the component is used for execution.

[0271] At point 1915, the UE can select contention-based communication resources from the communication resource pool for repetition of transmission-side link communication based on configurations used for transmission priority or for detecting overlapping transmissions. The operation at point 1915 can be performed according to the method described herein. In some examples, aspects of the operation at point 1915 can be determined by referring to... Figures 8 to 11 The resource pool is described and the component is used for execution.

[0272] At point 1920, the UE can use contention-based communication resources from the communication resource pool to transmit repetitions of sidelink communication in each of several consecutive time periods associated with that number of repetitions, wherein each repetition of sidelink communication is not associated with control information for scheduling. The operation at point 1920 can be performed according to the method described herein. In some examples, aspects of the operation at point 1920 can be derived from, as referenced... Figures 8 to 11 The described side link communication component is used to perform this.

[0273] It should be noted that the methods described in this paper describe possible implementations, and the operations and steps can be rearranged or otherwise modified, and other implementations are possible. Furthermore, aspects from two or more methods can be combined.

[0274] The following provides an overview of the various aspects of this disclosure:

[0275] Aspect 1: A method for wireless communication at a first UE, comprising: receiving a configuration associated with mapping communication resources allocated for a sidelink control channel and a sidelink data channel to corresponding physical communication resources; mapping, at least in part, a first communication resource allocated to the first UE for the sidelink control channel and the sidelink data channel to a second communication resource for the sidelink control channel and the sidelink data channel based on the configuration, wherein the first communication resource allocated for the sidelink control channel occupies a first bandwidth and the second communication resource for the sidelink control channel covers a second bandwidth greater than the first bandwidth; and communicating with a second UE using the second communication resource.

[0276] Aspect 2: According to the method of aspect 1, the mapping of the first communication resource to the second communication resource includes: mapping consecutive symbols of the first-level SCI to the same first frequency range, wherein at least two subsets of the first-level SCI are separated by the frequency range; and mapping consecutive symbols of the second-level SCI to the same second frequency range, wherein the second frequency range is different from the first frequency range and interleaved with the first frequency range.

[0277] Aspect 3: The method according to aspect 2 further includes: multiplexing the first-level SCI and the second-level SCI to cover the bandwidth of the side-link sub-channel.

[0278] Aspect 4: The method according to any one of Aspects 2 to 3 further includes: multiplexing the first-level SCI and the second-level SCI to cover a bandwidth larger than that of the side-link sub-channel.

[0279] Aspect 5: According to any one of Aspects 1 to 4, the mapping of the first communication resource to the second communication resource comprises: mapping consecutive symbols of the first-level SCI to at least partially different first frequency ranges; and mapping consecutive symbols of the second-level SCI to at least partially different second frequency ranges interleaved with the corresponding first frequency ranges.

[0280] Aspect 6: The method according to aspect 5 further includes: multiplexing the first-level SCI and the second-level SCI to cover the bandwidth of the side-link sub-channel.

[0281] Aspect 7: The method according to any one of Aspects 5 to 6 further includes: multiplexing the first-level SCI and the second-level SCI to cover a bandwidth larger than that of the side-link sub-channel.

[0282] Aspect 8: In the method according to any one of Aspects 1 to 7, the second bandwidth includes a second communication resource that is different from the first communication resource.

[0283] Aspect 9: The method according to any one of Aspects 1 to 8, wherein receiving the configuration comprises: receiving signaling indicating the configuration from a base station, a broadcast UE, or both.

[0284] Aspect 10: A method for wireless communication at a UE, comprising: receiving signaling indicative of a communication resource pool, the communication resource pool including one or more contention-based communication resources for sidelink communication; receiving signaling indicative of a number of repetitions associated with the communication resource pool; and using the contention-based communication resources from the communication resource pool to transmit repetitions of the sidelink communication in each of several consecutive time periods associated with the number of repetitions, each repetition of the sidelink communication not associated with control information for scheduling.

[0285] Aspect 11: The method according to aspect 10 further includes: selecting, at least in part, contention-based communication resources from the communication resource pool for transmitting the repetition of the side link communication based on a configuration for transmission priority or for detecting overlapping transmissions.

[0286] Aspect 12: According to any one of Aspects 10 to 11, the repetition of transmitting the side link communication comprises: transmitting continuous repetitions of the side link communication using at least partially different frequency ranges.

[0287] Aspect 13: The method according to any one of aspects 10 to 12 further includes: identifying the RV-ID of each of the repetitions for the side link communication based at least in part on a configured pattern of the RV-ID.

[0288] Aspect 14: The method according to any one of Aspects 10 to 13 further includes: receiving a first signaling from a broadcast UE, the first signaling indicating the communication resource pool, the number of repetitions, or both.

[0289] Aspect 15: The method according to any one of Aspects 10 to 14 further includes: receiving a first signaling from a base station, the first signaling indicating the communication resource pool, the number of repetitions, or both.

[0290] Aspect 16: The method according to any one of aspects 10 to 15 further includes: performing the combination process at least in part based on the repetition of the side link communication.

[0291] Aspect 17: In the method according to any one of Aspects 10 to 16, the number of repetitions is associated with feedback.

[0292] Aspect 18: In the method according to any one of aspects 10 to 16, the number of repetitions is not related to the feedback.

[0293] Aspect 19: A method for wireless communication at a first UE, comprising: receiving a configuration associated with mapping communication resources allocated for a sidelink control channel and a sidelink data channel to corresponding physical communication resources, the configuration being adapted to a communication resource pool including first communication resources allocated to the first UE for the sidelink control channel and the sidelink data channel; mapping logical communication resource units of the first communication resources to physical communication resource units of a second communication resource for the sidelink control channel and the sidelink data channel, at least in part based on the configuration, the logical communication resource units and the physical communication resource units each including a first number of REs and a second number of symbols; and communicating with a second UE using the second communication resources.

[0294] Aspect 20: According to the method of aspect 19, the first communication resource allocated for the side link control channel occupies a first bandwidth, and the second communication resource for the side link control channel covers a second bandwidth that is larger than the first bandwidth.

[0295] Aspect 21: In the method according to any one of Aspects 19 to 20, the first number of REs and the second number of symbols are at least partially based on a communication type, which includes control information, or data, or both.

[0296] Aspect 22: In the method according to any one of Aspects 19 to 21, the first number of REs and the second number of symbols are at least partially based on the communication resource pool, or the service type of the communication resource pool, or both.

[0297] Aspect 23: The method according to any one of aspects 19 to 22 further includes: mapping AGC communication to a range of frequencies covered in the first symbol of the second communication resource.

[0298] Aspect 24: The method according to any one of aspects 19 to 22 further includes: mapping AGC communication to a range of frequencies covered in all symbols of the symbols of the second communication resource.

[0299] Aspect 25: The method according to any one of Aspects 19 to 24, wherein receiving the configuration comprises: receiving signaling indicating the configuration from a base station, a broadcast UE, or both.

[0300] Aspect 26: A method for wireless communication at a first UE, comprising: receiving a configuration associated with mapping communication resources allocated for a sidelink control channel and a sidelink data channel to corresponding physical communication resources, the configuration for a communication resource pool including first communication resources allocated to the first UE for the sidelink control channel and the sidelink data channel; mapping, at least in part, based on the configuration, indices of a plurality of logical communication resource elements of the first communication resources to indices of a plurality of physical communication resource elements of a second communication resource for the sidelink control channel and the sidelink data channel, each of the plurality of logical communication resource elements and the plurality of physical communication resource elements including a first number of REs and a second number of symbols; and communicating with a second UE using the second communication resources.

[0301] Aspect 27: According to the method of aspect 26, the first communication resource allocated for the side link control channel occupies a first bandwidth, and the second communication resource for the side link control channel covers a second bandwidth that is larger than the first bandwidth.

[0302] Aspect 28: The method according to any one of Aspects 26 to 27 further includes: mapping consecutive even indices of a plurality of logical communication resource units to consecutive indices of a first subset of a plurality of physical communication resource units; and mapping consecutive odd indices of the plurality of logical communication resource units to consecutive indices of a second subset of the plurality of physical communication resource units.

[0303] Aspect 29: The method according to any one of Aspects 26 to 27, wherein the indices of the plurality of physical communication resource units associated with the consecutive indices of the plurality of logical communication resource units are separated by index offsets.

[0304] Aspect 30: The method according to any one of Aspects 26 to 29, wherein receiving the configuration comprises: receiving signaling indicating the configuration from a base station, a broadcast UE, or both.

[0305] Aspect 31: A method for wireless communication at a first UE, comprising: receiving a configuration associated with mapping communication resources allocated for a sidelink control channel and a sidelink data channel to corresponding physical communication resources; identifying first communication resources allocated to the first UE for the sidelink control channel and the sidelink data channel, the first communication resources allocated for the sidelink control channel occupying a first bandwidth; mapping the first communication resources to second communication resources for the sidelink control channel and the sidelink data channel based at least in part on the configuration, the second communication resources for the sidelink control channel covering a second bandwidth greater than the first bandwidth; and communicating with a second UE using the second communication resources.

[0306] Aspect 32: According to the method of aspect 31, wherein the second bandwidth includes communication resources for one or more UEs that are different from the first UE.

[0307] Aspect 33: The method according to any one of Aspects 31 or 32, wherein mapping the first communication resource to the second communication resource comprises: mapping consecutive symbols of the first-level SCI to at least partially different first frequency ranges; and mapping consecutive symbols of the second-level SCI to at least partially different second frequency ranges interleaved with the corresponding first frequency ranges.

[0308] Aspect 34: The method according to aspect 33 further includes: multiplexing the first-level SCI and the second-level side link control information to cover the bandwidth of the side link sub-channel.

[0309] Aspect 35: The method according to aspect 33 further includes: multiplexing the first-level SCI and the second-level SCI to cover a bandwidth larger than that of the side-link sub-channel.

[0310] Aspect 36: The method according to any one of Aspects 31 or 32, wherein mapping the first communication resource to the second communication resource comprises: mapping consecutive symbols of a first-level SCI to the same first frequency range, wherein at least two subsets of the first-level SCI are separated by frequency ranges; and mapping consecutive symbols of a second-level SCI to the same second frequency range, the second frequency range being different from and interleaved with the first frequency range.

[0311] Aspect 37: The method according to aspect 36 further includes: multiplexing the first-level SCI and the second-level side link control information to cover the bandwidth of the side link sub-channel.

[0312] Aspect 38: The method according to aspect 36 further includes: multiplexing the first-level side-link control information and the second-level side-link control information to cover a bandwidth larger than that of the side-link sub-channel.

[0313] Aspect 39: The method according to any one of Aspects 31 to 38, wherein mapping the first communication resource to the second communication resource comprises: mapping logical communication resource units of the first communication resource to physical communication resource units of the second communication resource based at least in part on a mapping for a communication resource pool including the first communication resource, wherein the logical communication resource unit and the physical communication resource unit each include a first number of REs and a second number of symbols.

[0314] Aspect 40: The method according to aspect 39, wherein the first number of REs and the second number of symbols are at least partially based on a communication type, wherein the communication type includes control information, or data, or both.

[0315] Aspect 41: The method according to any one of Aspects 39 or 40, wherein the first number of REs and the second number of symbols are at least partially based on the communication resource pool, or the service type of the communication resource pool, or both.

[0316] Aspect 42: The method according to any one of aspects 39 to 41 further includes: mapping AGC communication to a range of frequencies covered in the first symbol of the second communication resource.

[0317] Aspect 43: The method according to any one of aspects 39 to 41 further includes: mapping AGC communication to a range of frequencies covered in all symbols of the symbols of the second communication resource.

[0318] Aspect 44: The method according to any one of aspects 39 to 43 further includes: mapping consecutive even-numbered indices of a plurality of logical communication resource units to consecutive indices of a first subset of a plurality of physical communication resource units; and mapping consecutive odd-numbered indices of the plurality of logical communication resource units to consecutive indices of a second subset of the plurality of physical communication resource units.

[0319] Aspect 45: The method according to any one of aspects 39 to 43 further includes: mapping the indexes of a plurality of logical communication resource units to corresponding indices of a plurality of physical communication resource units, wherein the indices of the plurality of physical communication resource units associated with consecutive indices of the plurality of logical communication resource units are separated by index offsets.

[0320] Aspect 46: A method for wireless communication at a UE, comprising: identifying a number of repetitions associated with sidelink communication; identifying a communication resource pool including one or more contention-based communication resources for the sidelink communication; and using contention-based communication resources from the communication resource pool to transmit the repetitions of the sidelink communication in each of several consecutive time periods associated with the number of repetitions, wherein each repetition of the sidelink communication is not associated with control information for scheduling.

[0321] Aspect 47: The method according to aspect 46 further includes: selecting, at least in part, contention-based communication resources from the communication resource pool for transmitting the repetition of the sidelink communication based on a configuration for transmission priority or for detecting overlapping transmissions.

[0322] Aspect 48: The method according to any one of Aspects 46 or 47, wherein the repetition of transmitting the side link communication comprises: transmitting consecutive repetitions of the side link communication using at least partially different frequency ranges.

[0323] Aspect 49: The method according to any one of aspects 46 to 48 further includes: identifying the RV-ID of each of the repetitions for the side link communication based at least in part on a configured pattern of the RV-ID.

[0324] Aspect 50: The method according to any one of aspects 46 to 49 further includes: performing the combination process at least in part based on the repetition of the side link communication.

[0325] Aspect 51: The method according to any one of aspects 46 to 50 further includes: transmitting configuration signaling indicating the number of repetitions.

[0326] Aspect 52: The method according to any one of aspects 46 to 51 further includes: receiving configuration signaling instructing the communication resource pool.

[0327] Aspect 53: The method according to any one of aspects 46 to 52, wherein the number of repetitions is configured for feedback instances.

[0328] Aspect 54: An apparatus for wireless communication at a first UE, 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 the method of any one of Aspects 1 to 9.

[0329] Aspect 55: An apparatus for wireless communication at a first UE, comprising at least one unit for performing the method of any one of aspects 1 to 9.

[0330] Aspect 56: A non-transitory computer-readable medium storing code for wireless communication at a first UE, the code including instructions executable by a processor to perform the methods of any one of Aspects 1 to 9.

[0331] Aspect 57: An apparatus for wireless communication at a UE, 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 the method of any one of Aspects 10 to 18.

[0332] Aspect 58: An apparatus for wireless communication at a UE, comprising at least one unit for performing the method of any one of aspects 10 to 18.

[0333] Aspect 59: A non-transitory computer-readable medium storing code for wireless communication at a UE, the code including instructions executable by a processor to perform the methods of any one of Aspects 10 to 18.

[0334] Aspect 60: An apparatus for wireless communication at a first UE, 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 the method of any one of Aspects 19 to 25.

[0335] Aspect 61: An apparatus for wireless communication at a first UE, comprising at least one unit for performing the method of any one of aspects 19 to 25.

[0336] Aspect 62: A non-transitory computer-readable medium storing code for wireless communication at a first UE, the code including instructions executable by a processor to perform the methods of any one of Aspects 19 to 25.

[0337] Aspect 63: An apparatus for wireless communication at a first UE, 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 the method of any one of Aspects 26 to 30.

[0338] Aspect 64: An apparatus for wireless communication at a first UE, comprising at least one unit for performing the method of any one of aspects 26 to 30.

[0339] Aspect 65: A non-transitory computer-readable medium storing code for wireless communication at a first UE, the code including instructions executable by a processor to perform the methods of any one of Aspects 26 to 30.

[0340] Aspect 66: An apparatus for wireless communication, comprising at least one unit for performing the method of any one of aspects 31 to 45.

[0341] Aspect 67: An apparatus for wireless communication, comprising: a processor and a memory coupled to the processor, the processor and the memory being configured to perform the method of any one of aspects 31 to 45.

[0342] Aspect 68: A non-transitory computer-readable medium storing code for wireless communication, the code including instructions executable by a processor to perform the methods of any one of Aspects 31 to 45.

[0343] Aspect 69: An apparatus for wireless communication, comprising at least one unit for performing the method of any one of aspects 46 to 53.

[0344] Aspect 70: An apparatus for wireless communication, comprising: a processor and a memory coupled to the processor, the processor and the memory being configured to perform the method of any one of aspects 46 to 53.

[0345] Aspect 71: A non-transitory computer-readable medium storing code for wireless communication, said code including instructions executable by a processor to perform the methods of any one of Aspects 46 to 53.

[0346] While aspects of LTE, LTE-A, LTE-A Pro, or NR systems may be described for illustrative purposes, and the terms LTE, LTE-A, LTE-A Pro, or NR may be used in most of the description, the techniques described herein apply beyond LTE, LTE-A, LTE-A Pro, or NR networks. For example, the techniques described can be applied to a variety of other wireless communication systems, such as Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash-OFDM, and other systems and radio technologies not explicitly mentioned herein.

[0347] The information and signals described herein can be represented using any of a variety of different techniques and methods. For example, data, instructions, commands, information, signals, bits, symbols, and chips that may be mentioned throughout the description can be represented by voltage, current, electromagnetic waves, magnetic fields or particles, light fields or particles, or any combination thereof.

[0348] The various illustrative blocks and components described herein can be implemented or performed using a general-purpose processor, DSP, ASIC, CPU, FPGA, or other programmable logic device, discrete gate or transistor logic, discrete hardware component, or any combination thereof designed to perform the functions described herein. The general-purpose processor may be a microprocessor, but alternatively, the processor may be any processor, controller, microcontroller, or state machine. The processor may also be implemented as a combination of computing devices (e.g., a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors combined with a DSP core, or any other such configuration).

[0349] The functions described herein can be implemented using hardware, software executed by a processor, firmware, or any combination thereof. If implemented using software executed by a processor, the functions can be stored on or transmitted via a computer-readable medium as one or more instructions or code. Other examples and implementations are within the scope of this disclosure and the appended claims. For example, due to the nature of software, the functions described herein can be implemented using software executed by a processor, hardware, firmware, hardwiring, or any combination of these. Features implementing the functions can also be physically located in various locations, including being distributed such that different parts of the functions are implemented in different physical locations.

[0350] Computer-readable media includes both non-transitory computer storage media and communication media, with communication media encompassing any medium that facilitates the transfer of a computer program from one place to another. Non-transitory storage media can be any available medium accessible by a general-purpose computer or a special-purpose computer. By way of example, and not limitation, non-transitory computer-readable media can include RAM, ROM, electrically erasable programmable ROM (EEPROM), flash memory, compressed optical disc (CD) ROM or other optical disc storage, disk storage or other magnetic storage devices, or any other non-transitory medium that can be used to carry or store desired program code units in the form of instructions or data structures, and accessible by a general-purpose or special-purpose computer, or a general-purpose or special-purpose processor. Furthermore, any connection is appropriately referred to as computer-readable media. For example, if software is transmitted from a website, server, or other remote source using coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technologies such as infrared, radio, and microwave, then coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, radio, and microwave are included within the definition of computer-readable media. As used herein, disks and optical discs include CDs, laser discs, optical discs, digital multifunction discs (DVDs), floppy disks, and Blu-ray discs, wherein disks typically copy data magnetically, while optical discs use lasers to copy data optically. The combination described above is also included within the scope of computer-readable media.

[0351] As used herein (including in the claims), the word "or" as used in a list of items (e.g., a list of items ending with a phrase such as "at least one of" or "one or more of") indicates an inclusive list, such that a list of at least one of, for example, A, B, or C means A or B or C or AB or AC or BC or ABC (i.e., A and B and C). Furthermore, as used herein, the phrase "based on" should not be construed as a reference to a closed set of conditions. For example, an example step described as "based on condition A" could be based on both condition A and condition B without departing from the scope of this disclosure. In other words, as used herein, the phrase "based on" should be interpreted in the same manner as the phrase "at least partially based on".

[0352] In the accompanying drawings, similar components or features may have the same reference numerals. Furthermore, various components of the same type can be distinguished by a dash followed by a second reference numeral, used to differentiate between similar components. If only the first reference numeral is used in the specification, the description applies to any one of the similar components having the same first reference numeral, regardless of the second or other subsequent reference numerals.

[0353] This document describes exemplary configurations in conjunction with the accompanying drawings, and does not represent all examples that can be implemented or that are within the scope of the claims. The term "example" as used herein means "serving as an example, instance, or illustration," and not "preferred" or "advantageous over other examples." The detailed description includes specific details for the purpose of providing an understanding of the described techniques. However, these techniques can be implemented without these specific details. In some cases, known structures and devices are shown in block diagram form to avoid obscuring the concepts of the described examples.

[0354] The descriptions provided herein are intended to enable those skilled in the art to implement or use the present disclosure. Various modifications to the present disclosure will be readily apparent to those skilled in the art, and the general principles defined herein can be applied to other variations without departing from the scope of the disclosure. Therefore, the present disclosure is not limited to the examples and designs described herein, but is given the broadest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for wireless communication at a first user equipment (UE), comprising: Receive configurations associated with mapping communication resources allocated for sidelink control channels and sidelink data channels to corresponding physical communication resources; Based at least in part on the configuration, a first communication resource for each portion of the side link control information allocated to the first UE is mapped to a second communication resource over a time period, the mapping including: During the time period, consecutive symbols of the first-level side link control information are mapped to at least partially different first frequency ranges of the sub-channels; as well as During the time period, consecutive symbols of the second-level side link control information are mapped to a second frequency range that is at least partially different from the sub-channel and interleaved with a corresponding first frequency range of the at least partially different first frequency range of the sub-channel; and Use the second communication resource to communicate with the second UE.

2. The method according to claim 1, wherein mapping the first communication resource to the second communication resource comprises: During the time period, consecutive symbols of additional first-level side traversal control information are mapped to the same third frequency range, wherein at least two subsets of the additional first-level side traversal control information are separated by a fourth frequency range. as well as During the time period, consecutive symbols of additional second-level side link control information are mapped to the same fifth frequency range, which is different from and interleaved with the third frequency range.

3. The method according to claim 2, further comprising: The additional first-level sidelink control information and the additional second-level sidelink control information are multiplexed to cover the bandwidth of the sidelink sub-channels.

4. The method according to claim 2, further comprising: The additional first-level sidelink control information and the additional second-level sidelink control information are multiplexed to cover a bandwidth larger than that of the sidelink subchannel.

5. The method according to claim 1, further comprising: The first-level side-link control information and the second-level side-link control information are multiplexed to cover the bandwidth of the side-link sub-channels.

6. The method according to claim 1, further comprising: The first-level side-link control information and the second-level side-link control information are multiplexed to cover a bandwidth larger than that of the side-link sub-channels.

7. The method according to claim 1, wherein, The second bandwidth, which includes the second communication resource, is different from the first bandwidth, which includes the first communication resource.

8. The method according to claim 1, wherein receiving the configuration includes: Receive signaling indicating the configuration from a network entity, a broadcast UE, or both.

9. An apparatus for wireless communication at a first user equipment (UE), comprising: One or more memory units; as well as One or more processors, coupled to the one or more memories, and individually or jointly configured to cause the first UE to perform the following operations: Receive configurations associated with mapping communication resources allocated for sidelink control channels and sidelink data channels to corresponding physical communication resources; Based at least in part on the configuration, a first communication resource, representing each portion of the side-link control information allocated to the first UE, is mapped to a second communication resource over a time period, and wherein, in order to map the first communication resource to the second communication resource, the one or more processors are individually or jointly configured to cause the first UE to perform the following operations: Mapping consecutive symbols of the first-level side link control information to at least partially different first frequency ranges of the sub-channels within the time period; and During the time period, consecutive symbols of the second-level side link control information are mapped to a second frequency range that is at least partially different from the sub-channel and interleaved with a corresponding first frequency range of the at least partially different first frequency range of the sub-channel; and The second UE communicates with the second UE based on the second communication resource.

10. The apparatus according to claim 9, wherein, In order to map the first communication resource to the second communication resource, the one or more processors are individually or jointly configured to cause the first UE to perform the following operations: During the time period, consecutive symbols of additional first-level side traversal control information are mapped to the same third frequency range, wherein at least two subsets of the additional first-level side traversal control information are separated by a fourth frequency range. as well as During the time period, consecutive symbols of additional second-level side link control information are mapped to the same fifth frequency range, which is different from and interleaved with the third frequency range.

11. The apparatus according to claim 10, wherein, The one or more processors are individually or collectively configured to cause the first UE to perform the following operations: The additional first-level sidelink control information and the additional second-level sidelink control information are multiplexed to cover the bandwidth of the sidelink sub-channels.

12. The apparatus according to claim 10, wherein, The one or more processors are individually or collectively configured to cause the first UE to perform the following operations: The additional first-level sidelink control information and the additional second-level sidelink control information are multiplexed to cover a bandwidth larger than that of the sidelink subchannel.

13. The apparatus according to claim 9, wherein, The one or more processors are individually or collectively configured to cause the first UE to perform the following operations: The first-level side-link control information and the second-level side-link control information are multiplexed to cover the bandwidth of the side-link sub-channels.

14. The apparatus according to claim 9, wherein, The one or more processors are individually or collectively configured to cause the first UE to perform the following operations: The first-level side-link control information and the second-level side-link control information are multiplexed to cover a bandwidth larger than that of the side-link sub-channels.

15. The apparatus according to claim 9, wherein, The second bandwidth, which includes the second communication resource, is different from the first bandwidth, which includes the first communication resource.

16. The apparatus according to claim 9, wherein, In order to receive the configuration, the one or more processors are individually or jointly configured to cause the first UE to perform the following operations: Receive signaling indicating the configuration from a network entity, a broadcast UE, or both.

17. A non-transitory computer-readable medium storing code for wireless communication at a first user equipment (UE), the code comprising instructions executable by one or more processors to perform the following operations: Receive configurations associated with mapping communication resources allocated for sidelink control channels and sidelink data channels to corresponding physical communication resources; Based at least in part on the configuration, a first communication resource, representing each portion of the side link control information allocated to the first UE, is mapped to a second communication resource over a time period, wherein, The instruction to map the first communication resource to the second communication resource can be executed by the one or more processors to perform the following operations: Mapping consecutive symbols of the first-level side link control information to at least partially different first frequency ranges of the sub-channels within the time period; and During the time period, consecutive symbols of the second-level side link control information are mapped to a second frequency range that is at least partially different from the sub-channel and interleaved with a corresponding first frequency range of the at least partially different first frequency range of the sub-channel; and The second UE communicates with the second UE based on the second communication resource.

18. The non-transitory computer-readable medium according to claim 17, wherein, The instructions for mapping the first communication resource to the second communication resource can be executed by the one or more processors to perform the following operations: During the time period, consecutive symbols of additional first-level side traversal control information are mapped to the same third frequency range, wherein at least two subsets of the additional first-level side traversal control information are separated by a fourth frequency range. as well as During the time period, consecutive symbols of additional second-level side link control information are mapped to the same fifth frequency range, which is different from and interleaved with the third frequency range.

19. The non-transitory computer-readable medium according to claim 18, wherein, The instructions can be executed by the one or more processors to perform the following operations: The additional first-level sidelink control information and the additional second-level sidelink control information are multiplexed to cover the bandwidth of the sidelink sub-channels.

20. The non-transitory computer-readable medium according to claim 18, wherein, The instructions can be executed by the one or more processors to perform the following operations: The additional first-level sidelink control information and the additional second-level sidelink control information are multiplexed to cover a bandwidth larger than that of the sidelink subchannel.

21. The non-transitory computer-readable medium according to claim 17, wherein, The instructions can be executed by the one or more processors to perform the following operations: The first-level side-link control information and the second-level side-link control information are multiplexed to cover the bandwidth of the side-link sub-channels.

22. The non-transitory computer-readable medium according to claim 17, wherein, The instructions can be executed by the one or more processors to perform the following operations: The first-level side-link control information and the second-level side-link control information are multiplexed to cover a bandwidth larger than that of the side-link sub-channels.

23. The non-transitory computer-readable medium according to claim 17, wherein, The instructions can be executed by the one or more processors to perform the following operations: Receive signaling indicating the configuration from a network entity, a broadcast UE, or both.

24. An apparatus for wireless communication at a first user equipment (UE), comprising: A unit for receiving configurations associated with mapping communication resources allocated for sidelink control channels and sidelink data channels to corresponding physical communication resources; A unit for mapping, at least in part, symbols allocated to the first UE for each portion of side-link control information to a second communication resource over a time period, based on the configuration, the unit for mapping comprising: Units for mapping consecutive symbols of first-level side link control information to at least partially different first frequency ranges of sub-channels within the said time period; and A unit for mapping consecutive symbols of second-level side link control information to a second frequency range that is at least partially different from, and interleaved with, a corresponding first frequency range of the at least partially different first frequency range of the sub-channel; and A unit for communicating with a second UE using the second communication resource.

25. The apparatus according to claim 24, wherein, The unit for mapping the first communication resource to the second communication resource includes: Units for mapping consecutive symbols of additional first-level side traversal control information to the same third frequency range within the said time period, wherein at least two subsets of the additional first-level side traversal control information are separated by a fourth frequency range; and Units for mapping consecutive symbols of additional second-level side link control information to the same fifth frequency range within the time period, the fifth frequency range being different from and interleaved with the third frequency range.

26. The apparatus of claim 25, further comprising: A unit for multiplexing the additional first-level sidelink control information and the additional second-level sidelink control information to cover the bandwidth of the sidelink subchannel.

27. The apparatus of claim 24, further comprising: A unit for multiplexing the first-level sidelink control information and the second-level sidelink control information to cover the bandwidth of the sidelink sub-channel.

28. The apparatus of claim 25, further comprising: A unit for multiplexing the additional first-level sidelink control information and the additional second-level sidelink control information to cover a bandwidth larger than that of the sidelink subchannel.

29. The apparatus of claim 24, further comprising: A unit for multiplexing the first-level sidelink control information and the second-level sidelink control information to cover a bandwidth larger than that of the sidelink sub-channel.

30. The apparatus of claim 24, further comprising: A unit for receiving signaling indicating the configuration from a network entity, a broadcast UE, or both.

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