Sidelink communication reliability

Abstract

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

Description

[0001] This application is a divisional application of the application filed on June 18, 2021, with application number 202180039098.X and entitled "Side Link Communication Reliability". 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 may include: 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 method may further include: based on the configuration, mapping 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, 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 method may further 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 may include a processor and a memory coupled to the processor. The processor and memory may be configured to receive a configuration associated with mapping communication resources allocated for a sidelink control channel and a sidelink data channel to corresponding physical communication resources. The processor and memory may also be configured, based on the configuration, to map 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, 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 processor and memory may 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 may include: a unit for 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 apparatus may further include: a unit for mapping 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 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 apparatus may further include: a unit for communicating with the second UE using the second communication resources.

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

[0009] Examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for performing the following: mapping consecutive symbols of first-level side link control information (SCI) to the same first frequency range, wherein at least two subsets of the first-level SCI are separated by the frequency range. Examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for performing the following: 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.

[0010] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for multiplexing a first-level SCI and a second-level SCI to cover the bandwidth of a side-link subchannel.

[0011] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for multiplexing a first-level SCI and a second-level SCI to cover a bandwidth larger than that of a side-link subchannel.

[0012] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for performing: mapping consecutive symbols of a first-level SCI to at least partially different first frequency ranges; and mapping consecutive symbols of a second-level SCI to at least partially different second frequency ranges interleaved with the corresponding first frequency ranges.

[0013] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for multiplexing a first-level SCI and a second-level SCI to cover the bandwidth of a side-link subchannel.

[0014] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for multiplexing a first-level SCI and a second-level SCI to cover a bandwidth larger than that of a side-link subchannel.

[0015] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, the second bandwidth includes a second communication resource that is different from the first communication resource.

[0016] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for receiving signaling indicating configuration from a base station, a broadcast UE, or both.

[0017] A method for wireless communication at a UE is described. The method may include: receiving signaling indicating a communication resource pool, the communication resource pool including one or more contention-based communication resources for sidelink communication. The method may further include: receiving signaling indicating a number of repetitions associated with the communication resource pool. The method may further include: using the 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, each repetition of sidelink communication not associated with control information for scheduling.

[0018] An apparatus for wireless communication at a UE is described. The apparatus may include a processor and a memory coupled to the processor. The processor and memory may be configured to: receive signaling indicating a communication resource pool, the communication resource pool including one or more contention-based communication resources for sidelink communication. The processor and memory may also be configured to: receive signaling indicating a number of repetitions associated with the communication resource pool. The processor and memory may further be configured to: use the 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, each repetition of sidelink communication not associated with control information for scheduling.

[0019] Another apparatus for wireless communication at a UE is described. The apparatus may include: a unit for receiving signaling indicative of a communication resource pool, the communication resource pool including one or more contention-based communication resources for sidelink communication. The apparatus may further include: a unit for receiving signaling indicative of a number of repetitions associated with the communication resource pool. The apparatus may further include: a unit for transmitting repetitions of sidelink communication in each of several consecutive time periods associated with the number of repetitions using the contention-based communication resources from the communication resource pool, each repetition of the sidelink communication not associated with control information for scheduling.

[0020] A non-transitory computer-readable medium is described, storing code for wireless communication at a UE. The code may include instructions executable by a processor to: receive signaling indicating a communication resource pool, the communication resource pool including one or more contention-based communication resources for sidelink communication. The code may also include instructions executable by a processor to: receive signaling indicating a number of repetitions associated with the communication resource pool. The code may further include instructions executable by a processor to: use the contention-based communication resources from the communication resource pool to transmit repetitions of sidelink communication in each of several consecutive time periods associated with the number of repetitions, each repetition of sidelink communication not associated with control information for scheduling.

[0021] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for performing the following: selecting contention-based communication resources from a pool of communication resources for repetition of sidelink communication based on configurations for transmission priority or for detecting overlapping transmissions.

[0022] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for transmitting continuous repetitions of sidelink communications using at least partially different frequency ranges.

[0023] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for identifying each duplicate RV-ID in a duplicate for sidelink communication based on a configured pattern of Redundant Version Identifiers (RV-IDs).

[0024] Some examples of the methods, apparatuses and non-transitory computer-readable media described herein may also include operations, features, units or instructions for performing the following: receiving a first signaling from a broadcast UE, the first signaling indicating a communication resource pool, a number of repetitions, or both.

[0025] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for performing the following: receiving a first signaling from a base station, the first signaling indicating a communication resource pool, a number of repetitions, or both.

[0026] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for performing a combination process based on repetition of sidelink communication.

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

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

[0029] A method for wireless communication at a first UE is described. The method may include: 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 applicable 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 method may further include: mapping logical communication resource elements of the first communication resources to physical communication resource elements of second communication resources for the sidelink control channel and the sidelink data channel based on the configuration, the logical communication resource elements and the physical communication resource elements each including a first number of resource elements (REs) and a second number of symbols. The method may further 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 may include a processor and a memory coupled to the processor. The processor and memory may be configured to receive a configuration associated with mapping communication resources allocated for a sidelink control channel and a sidelink data channel to corresponding physical communication resources. This configuration applies to a communication resource pool, which includes first communication resources allocated to the first UE for the sidelink control channel and the sidelink data channel. The processor and memory may also be configured to, based on this configuration, 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, each of the logical and physical communication resource units including a first number of REs and a second number of symbols. The processor and memory may 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 may include: a unit for 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 suitable for a communication resource pool including first communication resources allocated to the first UE for the sidelink control channel and the sidelink data channel. The apparatus may further include: a unit 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 number of REs and a second number of symbols. The apparatus may further include: a unit for communicating with a second UE using the second communication resources.

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

[0033] In some examples of the methods, apparatuses and non-transitory computer-readable media described herein, a first communication resource allocated for a sidelink control channel occupies a first bandwidth, and a second communication resource for the sidelink control channel covers a second bandwidth larger than the first bandwidth.

[0034] In some examples of the methods, apparatuses and nontransitory computer-readable media described herein, the first number of REs and the second number of symbols are based on communication types, including control information, data, or both.

[0035] In some examples of the methods, apparatuses and nontransitory computer-readable media described herein, a first number of REs and a second number of symbols are on a communication resource pool, or a service type of the communication resource pool, or both.

[0036] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for mapping automatic gain control (AGC) communications to a range of frequencies covered in a first symbol of a second communication resource.

[0037] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for performing AGC communications to a range of frequencies covered by all symbols in the symbols of a second communication resource.

[0038] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for receiving signaling indicating configuration from a base station, a broadcast UE, or both.

[0039] A method for wireless communication at a first UE is described. The method may include: 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 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 may further include: mapping, 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 second communication resources for the sidelink control channel and the sidelink data channel, each of the plurality of logical communication resource element sets and the plurality of physical communication resource element sets including a first number of REs and a second number of symbols. The method may further 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 may include a processor and a memory coupled to the processor. The processor and memory may be configured to receive a configuration associated with mapping communication resources allocated for a sidelink control channel and a sidelink data channel to corresponding physical communication resources. This configuration is for a communication resource pool, which includes first communication resources allocated to the first UE for the sidelink control channel and the sidelink data channel. The processor and memory may also be configured to, based on this configuration, map 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 second communication resources for the sidelink control channel and the sidelink data channel, each of the plurality of logical communication resource element sets and the plurality of physical communication resource element sets including a first number of REs and a second number of symbols. The processor and memory may 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 may include: a unit for 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 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 may further include: a unit for mapping, 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 second communication resources for the sidelink control channel and the sidelink data channel, each of the plurality of logical communication resource element sets and the plurality of physical communication resource element sets including a first number of REs and a second number of symbols. The apparatus may further include: a unit for communicating with a second UE using the second communication resources.

[0042] A non-transitory computer-readable medium is described, storing code for wireless communication at a first UE. The code may include instructions executable by a processor to: receive 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. The code may also include instructions executable by a processor 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 second communication resources for the sidelink control channel and the sidelink data channel, each of the plurality of logical communication resource element sets and the plurality of physical communication resource element sets including a first number of REs and a second number of symbols. The code may also include instructions executable by a processor to: communicate with a second UE using the second communication resources.

[0043] In some examples of the methods, apparatuses and non-transitory computer-readable media described herein, a first communication resource allocated for a sidelink control channel occupies a first bandwidth, and a second communication resource for the sidelink control channel covers a second bandwidth larger than the first bandwidth.

[0044] Examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for performing the following operations: 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. Examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for performing the following operations: 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.

[0045] In some examples of the methods, apparatuses and non-transitory computer-readable media described herein, indices of multiple physical communication resource unit sets that can be associated with consecutive indices of multiple logical communication resource unit sets can be separated by index offsets.

[0046] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for receiving signaling indicating configuration from a base station, a broadcast UE, or both.

[0047] A method for wireless communication at a first UE is described. The method may include: 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 method may 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 may further 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 larger than the first bandwidth. The method may 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 may include a processor and a memory coupled to the processor. The processor and memory may be configured to receive a configuration associated with mapping communication resources allocated for a sidelink control channel and a sidelink data channel to corresponding physical communication resources. The processor and memory may 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 memory may further 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 larger than the first bandwidth. The processor and memory may 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 may include: a unit for 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 apparatus may include: a unit 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 may further include: a unit 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 larger than the first bandwidth. The apparatus may further include: a unit for communicating with a second UE using the second communication resources.

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

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

[0052] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for performing: mapping consecutive symbols of a first-level SCI to at least partially different first frequency ranges; and mapping consecutive symbols of a second-level SCI to at least partially different second frequency ranges interleaved with the corresponding first frequency ranges.

[0053] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for multiplexing a first-level SCI and a second-level SCI to cover the bandwidth of a side-link subchannel.

[0054] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for multiplexing a first-level SCI and a second-level SCI to cover a bandwidth larger than that of a side-link subchannel.

[0055] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for performing: mapping consecutive symbols of a first-level SCI to the same first frequency range, wherein at least two subsets of the first-level SCI can be separated by the frequency range; 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.

[0056] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for multiplexing a first-level SCI and a second-level SCI to cover the bandwidth of a side-link subchannel.

[0057] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for multiplexing a first-level SCI and a second-level SCI to cover a bandwidth larger than that of a side-link subchannel.

[0058] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for performing the following: mapping logical communication resource units of a first communication resource to physical communication resource units of a second communication resource based on a mapping for a communication resource pool that includes a 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.

[0059] In some examples of the methods, apparatuses and nontransitory computer-readable media described herein, the first number of REs and the second number of symbols may be based on a communication type, which may include control information, or data, or both.

[0060] In some examples of the methods, apparatuses and non-transitory computer-readable media described herein, the first number of REs and the second number of symbols may be based on a communication resource pool, or a service type of the communication resource pool, or both.

[0061] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for performing AGC communication to a range of frequencies covered in a first symbol of a second communication resource.

[0062] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for performing AGC communications to a range of frequencies covered by all symbols in the symbols of a second communication resource.

[0063] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for performing the following: mapping consecutive even indices of a set of logical communication resource units to consecutive indices of a first subset of a set of physical communication resource units; and mapping consecutive odd indices of a set of logical communication resource units to consecutive indices of a second subset of a set of physical communication resource units.

[0064] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for performing the following: mapping an index of a set of logical communication resource units to a corresponding index of a set of physical communication resource units, wherein indices of the physical communication resource unit set that can be associated with consecutive indices of the logical communication resource unit set can be separated by index offsets.

[0065] A method for wireless communication at a UE is described. The method may include: identifying a number of repetitions associated with sidelink communication, and identifying a communication resource pool comprising one or more contention-based communication resources for the sidelink communication. The method may further include: 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.

[0066] An apparatus for wireless communication at a UE is described. The apparatus may include a processor and a memory coupled to the processor. The memory and processor may be configured to: identify the number of repetitions associated with sidelink communication, and identify a communication resource pool comprising one or more contention-based communication resources for the sidelink communication. The memory and processor may also be configured to: use 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, wherein 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 may include: a unit for identifying the number of repetitions associated with sidelink communication, and for identifying a communication resource pool comprising one or more contention-based communication resources for the sidelink communication. The apparatus may further include: a unit for transmitting repetitions of the sidelink communication in each of several consecutive time periods associated with the number of repetitions using contention-based communication resources from the communication resource pool, wherein each repetition of the sidelink communication is not associated with control information for scheduling.

[0068] A non-transitory computer-readable medium is described, storing code for wireless communication at a UE. The code may include instructions executable by a processor to: identify the number of repetitions associated with sidelink communication and identify a communication resource pool comprising one or more contention-based communication resources for the sidelink communication. The code may also include instructions executable by a processor to: use 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.

[0069] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for performing the following: selecting contention-based communication resources from a pool of communication resources for repetition of sidelink communication based on configurations for transmission priority or for detecting overlapping transmissions.

[0070] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for transmitting continuous repetitions of sidelink communications using at least partially different frequency ranges.

[0071] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for performing the following: identifying the RV-ID of each repeating in a repeating for sidelink communication based on a configured pattern of RV-ID.

[0072] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for performing a combination process based on repetition of sidelink communication.

[0073] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for transmitting configuration signaling indicating the number of repetitions.

[0074] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for receiving configuration signaling instructing a communication resource pool.

[0075] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, the number of repetitions can be configured for feedback instances. Attached Figure Description

[0076] Figure 1 Examples of wireless communication systems that support sidelink communication reliability according to one or more aspects of this disclosure are shown.

[0077] Figure 2 Examples of wireless communication systems that support sidelink communication reliability according to one or more aspects of this disclosure are shown.

[0078] Figures 3A to 3D Examples of resource mapping schemes supporting sidelink communication reliability according to one or more aspects of this disclosure are shown.

[0079] Figure 4A and Figure 4B Examples of resource mapping schemes supporting sidelink communication reliability according to one or more aspects of this disclosure are shown.

[0080] Figure 5A and Figure 5B Examples of resource mapping schemes supporting sidelink communication reliability according to one or more aspects of this disclosure are shown.

[0081] Figure 6 An example of a communication repetition scheme that supports the reliability of sidelink communication according to one or more aspects of this disclosure is shown.

[0082] Figure 7 An example of a process flow supporting the reliability of sidelink communication according to one or more aspects of this disclosure is shown.

[0083] Figure 8 and Figure 9 A block diagram of an apparatus supporting sidelink communication reliability according to one or more aspects of this disclosure is shown.

[0084] Figure 10 A block diagram of a communication manager supporting sidelink communication reliability according to one or more aspects of this disclosure is shown.

[0085] Figure 11 A diagram of a system including devices supporting the reliability of sidelink communication is shown, according to one or more aspects of this disclosure.

[0086] Figures 12 to 19 A flowchart illustrating a method for supporting the reliability of crosslink communication according to one or more aspects of this disclosure is shown. Detailed Implementation

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

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

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

[0090] The various aspects of this disclosure are first described in the context of a wireless communication system. These aspects are further illustrated by resource mapping schemes, communication repetition schemes, process flows, apparatus diagrams, system diagrams, and flowcharts relating to sidelink communication reliability, and are described with reference to the foregoing.

[0091] Figure 1 Examples of a wireless communication system 100 supporting sidelink communication reliability according to one or more aspects of this disclosure are shown. The wireless communication system 100 may include one or more base stations 105, one or more UEs 115, and a core network 130. In some examples, the wireless communication system 100 may be a Long Term Evolution (LTE) network, an improved LTE (LTE-A) network, an LTE-A Pro network, or a New Radio (NR) network. In some examples, the wireless communication system 100 may support enhanced broadband communication, ultra-reliable (e.g., mission-critical) communication, low-latency communication, or communication with low-cost and low-complexity devices, or any combination thereof.

[0092] Base stations 105 can be distributed throughout a geographical area to form a wireless communication system 100, and can be devices of different forms or with different capabilities. Base stations 105 and UE 115 can communicate wirelessly via one or more communication links 125. Each base station 105 can provide a coverage area 110, and UE 115 and base station 105 can establish one or more communication links 125 on the coverage area 110. Coverage area 110 can be an example of a geographical area where base station 105 and UE 115 can support signal transmission according to one or more radio access technologies.

[0093] UE 115 can be distributed throughout the entire coverage area 110 of the wireless communication system 100, and each UE 115 can be stationary, mobile, or both at different times. UE 115 can be devices of different forms or with different capabilities. Figure 1 Some example UE 115s are shown in the document. The UE 115 described herein may be able to communicate with various types of devices, such as other UE 115s, base station 105, or network devices (e.g., core network nodes, relay devices, integrated access and backhaul (IAB) nodes, or other network devices). Figure 1 As shown.

[0094] Base station 105 can communicate with core network 130, communicate with each other, or perform both operations. For example, base station 105 can interface with core network 130 via one or more backhaul links 120 (e.g., via S1, N2, N3, or other interfaces). Base station 105 can communicate with each other directly (e.g., directly between base stations 105) on backhaul links 120 (e.g., via X2, Xn, or other interfaces), or indirectly (e.g., via core network 130), or perform both operations. In some examples, backhaul link 120 can be or includes one or more radio links.

[0095] One or more of the base stations 105 described herein may include, or may be referred to by those skilled in the art as, base station transceiver, radio base station, access point, radio transceiver, node B, evolved node B (eNB), next-generation node B or gigabit node B (any of which may be referred to as gNB), home node B, home evolved node B, or other suitable terms.

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

[0097] The UE 115 described in this document may be able to communicate with various types of devices, such as other UE 115s that can sometimes act as repeaters, as well as base station 105 and network devices (including macro eNBs or gNBs, small cell eNBs or gNBs, or relay base stations and other examples), such as Figure 1 As shown.

[0098] UE 115 and base station 105 can communicate wirelessly with each other via one or more communication links 125 on one or more carriers. The term "carrier" can refer to a set of radio frequency spectrum resources having a defined physical layer structure for supporting communication link 125. For example, a carrier for communication link 125 may include a portion of a radio frequency spectrum band (e.g., a bandwidth portion (BWP)) that operates 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 may carry acquisition signaling (e.g., synchronization signals, system information), control signaling coordinating operation for the carrier, user data, or other signaling. Wireless communication system 100 can support communication with UE 115 using carrier aggregation or multi-carrier operation. Depending on the carrier aggregation configuration, UE 115 can be configured with multiple downlink component carriers and one or more uplink component carriers. Carrier aggregation can be used in conjunction with both frequency division duplex (FDD) component carriers and time division duplex (TDD) component carriers.

[0099] The signal waveform transmitted on a carrier can consist of multiple subcarriers (e.g., using multicarrier modulation (MCM) techniques such as Orthogonal Frequency Division Multiplexing (OFDM) or Discrete Fourier Transform Extended OFDM (DFT-S-OFDM). In a system employing MCM, a resource element can include a symbol period (e.g., the duration of a modulation symbol) and a subcarrier, where the symbol period and subcarrier spacing are inversely related. The number of bits carried through 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). Therefore, the more resource elements UE 115 receives and the higher the order of the modulation scheme, the higher the data rate can be for UE 115. Wireless communication resources can refer to a combination of radio frequency spectrum resources, temporal resources, and spatial resources (e.g., spatial layers or beams), and the use of multiple spatial layers can further increase the data rate or data integrity for communication with UE 115.

[0100] It can be defined by a basic unit of time (which can be, for example, referred to as...) The sampling period is seconds, where It can represent the maximum supported subcarrier spacing, and The time interval for base station 105 or UE 115 can be represented as a multiple of the maximum supported Discrete Fourier Transform (DFT) size. The time interval for communication resources can be organized based on radio frames, each having a specified duration (e.g., 10 milliseconds (ms)). Each radio frame can be identified by a System Frame Number (SFN) (e.g., ranging from 0 to 1023).

[0101] Each frame may include multiple consecutively numbered subframes or time slots, and each subframe or time slot may have the same duration. In some examples, a frame may be divided (e.g., in the time domain) into subframes, and each subframe may be further divided into a number of time slots. Alternatively, each frame may include a variable number of time slots, and the number of time slots may depend on the subcarrier spacing. Each time slot may include a number of symbol periods (e.g., this depends on the length of the cyclic prefix added before each symbol period). In some wireless communication systems 100, time slots may be further divided into multiple micro-time slots containing one or more symbols. Excluding the cyclic prefix, each symbol period may contain one or more (e.g., (Number) sampling periods. The duration of a symbol period can depend on the subcarrier spacing or the operating frequency band.

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

[0103] Physical channels can be multiplexed on a carrier using various techniques. For example, one or more of Time Division Multiplexing (TDM), Frequency Division Multiplexing (FDM), or hybrid TDM-FDM techniques can be used to multiplex physical control channels and physical data channels on a downlink carrier. A control region (e.g., a control resource set (CORESET)) for physical control channels can be defined by the number 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 group of UEs 115. For example, one or more of the UEs 115 can monitor or search for control regions for control information based on 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. The aggregation level for control channel candidates can refer to the number of control channel resources (e.g., control channel elements (CCEs)) associated with coded information for a control information format having a given payload size. The search space set may include a common search space set configured to send control information to multiple UEs 115 and a UE-specific search space set used to send control information to a specific UE 115.

[0104] In some examples, base station 105 may be mobile, and therefore provide communication coverage for mobile geographic coverage areas 110. In some examples, different geographic coverage areas 110 associated with different technologies may overlap, but the different geographic coverage areas 110 may be supported by the same base station 105. In other examples, overlapping geographic coverage areas 110 associated with different technologies may be supported by different base stations 105. Wireless communication system 100 may include, for example, a heterogeneous network, in which different types of base stations 105 use the same or different radio access technologies to provide coverage for various geographic coverage areas 110.

[0105] Some UE 115s (e.g., MTC or IoT devices) can be low-cost or low-complexity devices and can provide 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 each other or with base station 105 without human intervention. In some examples, M2M communication or MTC can include communication from devices that have integrated sensors or meters to measure or capture information and relay such information to a central server or application that uses the information or presents it to humans interacting with the application. Some UE 115s can be designed to collect information or automate the 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, climate and geological event monitoring, fleet management and tracking, remote security sensing, physical access control, and transaction-based billing.

[0106] Wireless communication system 100 can be configured to support ultra-reliable communication or low-latency communication, or various combinations thereof. For example, wireless communication system 100 can be configured to support ultra-reliable low-latency communication (URLLC) or mission-critical communication. UE 115 can be designed to support ultra-reliable, low-latency, or mission-critical functions (e.g., mission-critical functions). Ultra-reliable communication may include private or group communication and may 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 may include service prioritization, and mission-critical services may be used for public safety or general commercial applications. The terms ultra-reliable, low-latency, mission-critical, and ultra-reliable low-latency are used interchangeably herein.

[0107] In some examples, UE 115 may also be able to communicate directly with other UE 115s on device-to-device (D2D) communication link 135 (e.g., using peer-to-peer (P2P) or D2D protocols). In some cases, communication link 135 may be referred to as sidelink communication link 165 and may be used for sidelink communication between UE 115s. In some cases, sidelink communication link 165 may 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 using D2D or sidelink communication may be within the geographic coverage area 110 of base station 105. Other UEs 115 in such a group may be outside the geographic coverage area 110 of base station 105 or otherwise unable to receive transmissions from base station 105. In some examples, groups of UEs 115 communicating via D2D or sidelink communication may utilize a one-to-many (1:M) system, wherein each UE 115 transmits to every other UE 115 in the group. In some examples, base station 105 facilitates the scheduling of resources for D2D or sidelink communication. In other cases, D2D or sidelink communication is performed between UEs 115 without involving base station 105.

[0109] In some systems, the D2D communication link 135 may be an example of a communication channel (such as a sidelink communication channel) between vehicles (e.g., UE 115). In some examples, vehicles may communicate using vehicle-to-everything (V2X) communication, vehicle-to-vehicle (V2V) communication, or some combination of these. For example, other examples of vehicles or UE 115 (e.g., industrial or other equipment) may communicate using cellular V2X (C-V2X) communication. Vehicles may use signals to notify information related to traffic conditions, signal control, weather, safety, emergencies, or any other information related to the V2X system. In some examples, vehicles in a V2X system may communicate with roadside infrastructure (such as roadside units), or communicate with the network via one or more network nodes (e.g., base station 105) using vehicle-to-network (V2N) communication, or both.

[0110] Core network 130 can provide user authentication, access authorization, tracking, Internet Protocol (IP) connectivity, and other access, routing, or mobility functions. Core network 130 can be an evolved packet core (EPC) or a 5G core (5GC), which may include at least one control plane entity (e.g., a mobility management entity (MME), access and mobility management function (AMF)) managing access and mobility, and at least one user plane entity (e.g., a serving gateway (S-GW), packet data network (PDN) gateway (P-GW), or user plane function (UPF)) routing packets to or interconnecting with external networks. The control plane entity can manage non-access stratum (NAS) functions, such as mobility, authentication, and bearer management for UE 115 served by base station 105 associated with core network 130. User IP packets can be transmitted through the user plane entity, which can provide IP address allocation and other functions. The user plane entity can connect to network operator IP service 150. Operator IP service 150 may include access to the Internet, intranet, IP Multimedia Subsystem (IMS), or packet-switched streaming services. UE 115 can communicate with the core network 130 via communication link 155.

[0111] Some network devices (e.g., base station 105) may include sub-components such as access network entity 140, which may be an example of an access node controller (ANC). Each access network entity 140 may communicate with UE 115 through one or more other access network transport entities 145 (which may be referred to as a radio headend, smart radio headend, or transmit / receive point (TRP)). Each access network transport entity 145 may include one or more antenna panels. In some configurations, the various functions of each access network entity 140 or base station 105 may be distributed across individual network devices (e.g., radio headends and ANCs) or incorporated into a single network device (e.g., base station 105).

[0112] Wireless communication system 100 can operate using one or more frequency bands (e.g., in the range of 300 MHz to 300 GHz). The region from 300 MHz to 3 GHz is referred to as the ultra-high frequency (UHF) region or decimeter band because the wavelength range extends from approximately one decimeter to one meter in length. UHF waves may be blocked or redirected by buildings and environmental features, but the waves can be sufficient to penetrate structures for use in macrocells to provide service to UE 115 located indoors. Compared to the transmission of smaller frequencies and longer waves using the lower frequencies (HF) or very high frequencies (VHF) portions of the spectrum below 300 MHz, UHF wave transmission can be associated with smaller antennas and shorter distances (e.g., less than 100 km).

[0113] The electromagnetic spectrum is typically subdivided into various categories, bands, channels, etc., based on frequency / wavelength. In 5G NR, the two initial operating bands have been designated as frequency range names FR1 (410 MHz - 7.125 GHz) and FR2 (24.25 GHz - 52.6 GHz). The frequencies between FR1 and FR2 are generally referred to as the band center frequencies. Although a portion of FR1 is greater than 6 GHz, in various documents and articles, FR1 is often (interchangeably) referred to as the "Sub-6 GHz" band. Similar naming issues sometimes arise regarding FR2; although FR2 differs from the extremely high frequency (EHF) band (30 GHz - 300 GHz), it is often (interchangeably) referred to in documents and articles as the "millimeter wave" band, which is designated as such by the International Telecommunication Union (ITU).

[0114] The frequencies between FR1 and FR2 are generally referred to as the center frequency of the band. Recent 5G NR studies have designated the operating bands with these center frequencies as the frequency range name FR3 (7.125 GHz – 24.25 GHz). Bands falling within FR3 can inherit FR1 and / or FR2 characteristics, and thus can effectively extend the characteristics of FR1 and / or FR2 to the band center frequency. Additionally, higher frequency bands are currently being explored to extend 5G NR operation above 52.6 GHz. For example, three higher operating frequency bands have been designated as the frequency range names FR4a or FR4-1 (52.6 GHz – 71 GHz), FR4 (52.6 GHz – 114.25 GHz), and FR5 (114.25 GHz – 300 GHz). Each of these higher frequency bands falls within the EHF band.

[0115] In light of the foregoing, unless otherwise specifically stated, it should be understood that the term "sub-6 GHz," if used herein, can broadly refer to frequencies that are less than 6 GHz, within FR1, or may include the center frequency of a frequency band. Furthermore, unless otherwise specifically stated, it should be understood that the term "millimeter wave," if used herein, can broadly refer to frequencies that may include the center frequency of a frequency band, within FR2, FR4, FR4-a, or FR4-1 and / or FR5, or within the EHF band.

[0116] Wireless communication system 100 can utilize both licensed and unlicensed radio frequency spectrum bands. For example, wireless communication system 100 can employ Licensed Assisted Access (LAA), LTE Unlicensed (LTE-U) radio access technology, or NR technology in unlicensed frequency bands (such as the 5 GHz Industrial, Scientific, and Medical (ISM) band). When operating in unlicensed radio frequency spectrum bands, devices (such as base station 105 and UE 115) can employ carrier sensing for collision detection and avoidance. In some examples, operation in unlicensed frequency bands can be based on carrier aggregation configurations that combine component carriers operating in licensed frequency bands (e.g., LAA). Operation in unlicensed spectrum can include downlink transmissions, uplink transmissions, P2P transmissions, or D2D transmissions, and other examples.

[0117] Base station 105 or UE 115 may be equipped with multiple antennas, which can be used to employ techniques such as transmit diversity, receive diversity, multiple-input multiple-output (MIMO) communication, or beamforming. The antennas of base station 105 or UE 115 may be located within one or more antenna arrays or antenna panels (which may support MIMO operation or transmit or receive beamforming). For example, one or more base station antennas or antenna arrays may be co-located at an antenna assembly, such as an antenna tower. In some examples, the antennas or antenna arrays associated with base station 105 may be located in different geographical locations. Base station 105 may have an antenna array having a number of rows and columns of antenna ports that base station 105 can use to support beamforming for communication with UE 115. Similarly, UE 115 may have one or more antenna arrays that can support various MIMO or beamforming operations. Additionally or alternatively, antenna panels may support radio frequency beamforming for signals transmitted via antenna ports.

[0118] Beamforming (which may also be referred to as spatial filtering, directional transmission, or directional reception) is a signal processing technique that can be used at a transmitting or receiving device (e.g., base station 105, UE 115) to form or guide an antenna beam (e.g., transmit beam, receive beam) along a spatial path between the transmitting and receiving devices. Beamforming can be achieved by combining signals transmitted via antenna elements of an antenna array such that some signals propagating relative to a specific orientation of the antenna array experience constructive interference, while others experience destructive interference. Adjustments to the signals transmitted via the antenna elements can include applying amplitude offset, phase offset, or both to the signals carried via the antenna elements associated with the transmitting or receiving device. The adjustments associated with each antenna element can be defined by a set of beamforming weights associated with a specific orientation (e.g., relative to the antenna array of the transmitting or receiving device, or relative to some other orientation).

[0119] UE 115 and base station 105 can support data retransmission to increase the likelihood of successful data reception. Hybrid Automatic Repeat Request (HARQ) feedback is a technique used to increase the likelihood of correct data reception on communication link 125. HARQ can include a combination of error detection (e.g., using Cyclic Redundancy Check (CRC)), forward error correction (FEC), and retransmission (e.g., Automatic Repeat Request (ARQ)). HARQ can improve throughput at the Media Access Control (MAC) layer under poor radio conditions (e.g., low signal and noise conditions). In some examples, the device can support same-slot HARQ feedback, where the device can provide HARQ feedback for data received in a previous symbol within a specific time slot. In other cases, the device can provide HARQ feedback in subsequent time slots or according to some other time interval.

[0120] One or more of the operations performed by UE 115 can be performed by UE communication manager 101, which can be as described in reference Figures 8 to 11 Examples of communication managers 815, 920, 1020, or 1110 are described. In some cases, the transceiver can perform receive or transmit operations, and the processor can identify one or more aspects of a mapped or reconfigured system and configure one or more side link communications based on the mapped or reconfigured system.

[0121] Figure 2 Examples of a wireless communication system 200 supporting side-link communication reliability according to one or more aspects of this disclosure are shown. In some examples, the wireless communication system 200 may implement aspects of the wireless communication system 100. For example, the wireless communication devices may include base station 105-a and UEs 115-a and 115-b, which may be referenced... Figure 1 Examples of base station 105 and UE 115 described herein. UE 115-a and 115-b may each represent an example of UE 115 configured for sidelink communication (e.g., sidelink communication with other UE 115 and via one or more sidelink channels or subchannels). In some examples described herein, UE 115-a may send sidelink packet 205 to UE 115-b (e.g., sidelink transmission or communication) (e.g., UE 115-b may receive sidelink packet 205).

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

[0123] Sidelink data channels can occupy several adjacent subchannels (e.g., The sidelink control channel can occupy up to one subchannel with the lowest subchannel index, for example, within the sidelink bandwidth. The sidelink control channel can carry one or more portions of the SCI (e.g., levels). For example, the sidelink control channel can carry a first-level SCI, which includes information about the bandwidth of the corresponding sidelink data channel and information about sidelink resource reservations for future TTIs. In some cases, the sidelink data channel can carry a second-level SCI, which can be decoded by UE 115-b after the sidelink control channel is decoded, and can include a source identifier (ID) and a destination ID, which can indicate the source UE 115 (e.g., UE 115-a) and the intended destination UE 115 (e.g., UE 115-b) for the sidelink packet 205.

[0124] The sidelink control channel (SCI) can be configured to occupy several physical redundancies (PRBs) within a subchannel (e.g., 10, 12, 15, 20, or 25 PRBs) 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 sidelink packet 205, where the retransmission and the original sidelink packet 205 can include the same frequency allocation size or length. Resources for sidelink packet 205 and any of its retransmissions can be allocated by base station 105 (e.g., base station 105-a) via downlink control information (DCI) (e.g., mode 1 communication), or can be allocated autonomously by the sending or receiving UE 115 (e.g., UE 115-a or UE 115-b) (e.g., mode 2 communication). In the case of autonomous allocation of resources for sidelink packets, UEs 115-a and 115-b can communicate without communicating with base station 105-a, as in Figure 2 The dashed line indicates the downlink transmission 210 from base station 105-a. In some cases, the behavior of UE 115-b (e.g., receiving UE 115) may be the same in either mode (e.g., the resource allocation process may be transparent to receiving UE 115).

[0125] Mode 1 communication 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 sent from base station 105-a (e.g., via downlink transmission 210) via DCI (e.g., DCI type 3_0) and can indicate the time and frequency resources allocated for sidelink packet 205 and the transmission timing. Configured grants (e.g., type 1) can be activated via Radio Resource Control (RRC) signaling from base station 105-a (e.g., via downlink transmission 210). The modulation and coding scheme (MCS) for mode 1 communication can be set by UE 115-a (e.g., transmitting UE 115) and can be within the limits set or configured by base station 105-a. DCI or RRC signaling can represent examples of signaling on the base station to UE interface (e.g., Uu interface).

[0126] UE 115-a can allocate one or more resources for Mode 2 communication based on a channel sensing process. For example, UE 115-a (e.g., the transmitter or receiver of UE 115-a) can perform channel sensing by blind decoding of all control channels to determine which sidelink resources are reserved for other sidelink transmissions. The transmitter or receiver of UE 115-a can report the available sidelink resources to the 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 on a UE-to-UE interface (e.g., a PC5 interface).

[0127] The wireless communication system 200 may be an example of an Industrial Internet of Things (IIoT) system; however, the techniques described herein are applicable to any sidelink or message-based reserved system. For example, an IIoT system may communicate using a sidelink communication protocol (e.g., the C-V2X communication protocol). An IIoT system may include sensors that can transmit sensed data to a server or similar network device. The network device may perform calculations based on the sensed data and may send commands or similar messages to actuators to perform actions in response to the sensed data. In some examples, an IIoT system may be configured to transmit sidelink packets 205 within a time window (e.g., 1 to 2 ms or less) (e.g., between the sensor sensing a change in parameters and the command message arriving at the actuator based on the sensed data). Some IIoT systems may also be configured to transmit at a configured error rate (e.g., 10⁻⁶). -6 The control channel for IIoT communication can be configured to satisfy the conditions imposed by the transmission time window and the error rate.

[0128] In an example IIoT communication process, a sensor can detect changing parameters, use an embedded computer to compile the data, and send the data to a receiver at a programmable logic controller (PLC) (e.g., a control or manipulation server). The PLC's transmitter can send the data to a receiver on an actuator on a wireless device, and the actuator's embedded computer can analyze the data and adjust based on the changing parameters detected by the sensor. In such an example, the user interface can have a latency of 0.3 ms, and the radio interface can have a latency of 0.2 ms. The 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, the PLC can communicate with 20 to 50 sensor / actuator pairs (e.g., control 20 to 50 sensor / actuator pairs). In some cases, performing such communication via base station 105-a may result in multiple over-the-air (OTA) transmissions, which may increase latency and reduce reliability. Therefore, the IIoT system can employ sidelink communication.

[0129] Some IIoT communication services can be deterministic and may include smaller sidelink packets 205 (e.g., with a size of 32 to 256 bytes). These smaller sidelink packets 205 can support smaller transmission bandwidths for IIoT services (e.g., 2 RBs), where the overall bandwidth for IIoT may be large and may include dedicated and / or unlicensed frequency bands. Some sensors or actuators may have limited capabilities, e.g., regarding transmission bandwidth or processing power, and therefore, sensors or actuators may 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 used in IIoT, the resource allocation for sidelink packet 205 can be restricted to contiguous frequency domain resources. However, contiguous frequency resource allocation may limit the range of frequencies available for some sidelink packets 205, which may limit or reduce frequency diversity. In some IIoT environments, reduced frequency diversity can lead to unreliable sidelink transmissions. For example, narrowband interference generated by neighboring machines or frequency notches generated through signal reflection (e.g., missed transmissions) can cause degraded communication quality across one or more frequency ranges. Therefore, some IIoT sidelink communications (e.g., control and / or data channels) may experience reduced transmission reliability, which may lead to delays or other errors in sidelink communications (e.g., sidelink packet 205).

[0131] This disclosure provides techniques for improving the reliability of sidelink communications. In a first example, UE 115 (e.g., UE 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 may include greater frequency diversity. For example, resources may be allocated to UE 115-a and 115-b (e.g., autonomously or by base station 105-a) in the logical domain, and one or both of UE 115-b and 115-a can map the allocated resources to the physical domain, where the frequency range of the sidelink control channel or sidelink data channel may be larger 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 may be associated with an aggregation factor representing the number of blind repetitions (e.g., repetitions sent without first receiving feedback) of sidelink packets 205 associated with a feedback process (e.g., HARQ feedback). For example, UE 115-a can repeat sidelink packets 205 multiple times within a contention-based resource pool before receiving feedback in order to improve communication reliability.

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

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

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

[0135] Figure 3A , Figure 3B , Figure 3C and Figure 3D Examples of resource mapping schemes 301, 302, 303, and 304 supporting side-link communication reliability according to one or more aspects of this disclosure are shown. In some examples, resource mapping schemes 301, 302, 303, and 304 can implement aspects of wireless communication system 100 or 200. For example, one or more of resource mapping schemes 301, 302, 303, or 304 can be implemented by UE 115 (which may represent reference to...) Figure 1 and Figure 2 (Example of UE 115 described) or various aspects of UE 115 implemented as described in the reference. Figure 2 One or more of the resource mapping schemes 301, 302, 303 or 304 described herein may be implemented by UE 115 to map sidelink communication resources allocated in the logical domain or virtual domain to physical sidelink communication resources (e.g., to improve frequency diversity of the sidelink control channel, sidelink data channel or both).

[0136] In some examples, decoding the SCI may be directly related to increasing the reliability and / or reducing latency of some sidelink communications (e.g., IIoT communications). For example, when UE 115 or another UE 115 allocates resources for sidelink communications (e.g., mode 2 resource allocation), the UE 115 allocating the resources can send an SCI to notify other UE 115 of the allocated resources and avoid transmission conflicts. In some sidelink communications (e.g., C-V2X communications), the first-level SCI and the second-level SCI can be sent at the beginning of the subchannel time frame (e.g., at the beginning of the 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 the subchannel bandwidth (e.g., 10% of the subchannel bandwidth). For example, sub-channel bandwidths (e.g., any one of bandwidths 335-a, 335-b, 335-c, 335-d, 335-e, or 335-f) can occupy 100 PRBs 345, and the corresponding control channel (e.g., PSCCH) can occupy 10 of these PRBs 345. For example, PRBs 345 can be... Figure 3A The dashed lines in the diagram represent frequency resource units (not scaled), which can be units that at least partially define or measure the bandwidth of a sub-channel. A sub-channel bandwidth can occupy a portion of channel 340, which can be represented, for example, by two or more sub-channel bandwidths (e.g., as shown in the diagram). Figure 3C (As shown).

[0137] The first-level SCI 320 and / or the second-level SCI 325 can be configured with lower frequency diversity, which may result in reduced transmission reliability. For example, as Figure 3A , Figure 3B , Figure 3C and Figure 3D As shown in the first example of each figure, first-level SCIs 320-A, 320-B, 320-C, or 320-D can occupy contiguous frequency resources, allowing for relatively small diversity within those resources (e.g., the resources can occupy relatively similar frequency ranges). Similarly, second-level SCIs 325-A, 325-B, 325-C, or 325-D can occupy contiguous frequency resources, allowing for relatively small diversity within the frequency resources used for the second-level SCI 325.

[0138] Resource mapping schemes 301, 302, 303, and 304 illustrate corresponding examples of increasing frequency diversity of the sidelink control channel and / or sidelink data channel 315 by multiplexing the sidelink data channel 315 (e.g., PSSCH) and the first-level SCI 320 (e.g., sidelink control channel) in an interleaved manner. The resource mapping scheme (e.g., one or more of resource mapping schemes 301, 302, 303, or 304) can be configured as a multiplexing mode at UE 115 via configuration signaling (e.g., RRC signaling, e.g., transmitted via base station 105 or another UE 115). The resource mapping scheme can be configured individually for each sub-channel, or it can be common to all sub-channels. The same mapping scheme or different mapping schemes can be used to map the first-level SCI 320 and the second-level 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 UE 115. In some cases, a first example of resource mapping in each of the corresponding resource mapping schemes 301, 302, 303, and 304 can represent a virtual resource mapping, and a second example of resource mapping can represent a physical resource mapping.

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

[0140] The mapping scheme shown in resource mapping scheme 301 can provide greater frequency diversity by remapping SCI resources to occupy a larger portion of the bandwidth 335-a. For example, as Figure 3AAs shown in the second example, after mapping, the first-level SCI 320 can occupy discontinuous frequency resources at 320-B, 320-C, and 320-D, where each discontinuous frequency resource can be associated with a corresponding first frequency range 355. In such a case, the diversity in the frequency resources can be greater (e.g., some frequency resources in the frequency resources used for the first-level SCI 320 can occupy some different frequency ranges), and the discontinuous frequency resources at 320-B, 320-C, and 320-D can collectively occupy a larger portion of bandwidth 335-a. Similarly, the second-level SCI 325 (e.g., as...) Figure 3A (As shown in the second example) discontinuous frequency resources at 325-B and 325-C can be occupied, where each discontinuous frequency resource can be associated with a corresponding second frequency range 360, which can be interleaved with a corresponding first frequency range 355. In such a case, the diversity of frequency resources used for the second-level SCI 325 can be greater, and a larger portion of bandwidth 335-a can be occupied.

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

[0142] In the second example shown through 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 may illustrate techniques for mapping first-level SCI 320 and / or second-level SCI 325 to one or more subchannel bandwidths different from those indicated by the original resource allocation. First-level SCI 320 can be allocated to a subchannel with the lowest index 350 (e.g., for backward compatibility), and this can be communicated to UE 115 via RRC signaling. First-level SCI 320 can hop to other subchannel bandwidths allocated to UE 115, as indicated by the upper communication layer. Second-level SCI 325 can occupy other subchannel bandwidths, as indicated to UE 115 via RRC signaling or control signaling (e.g., fields in the SCI, such as SCI 0_1).

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

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

[0145] In some cases, as shown in resource mapping scheme 304, the first-level SCI 320 can be multiplexed to cover a larger portion of the bandwidth of bandwidth 335-e (e.g., a subchannel with the lowest index 350), where consecutive symbols 330 of the first-level SCI 320 can occupy the same frequency resources. The second-level 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, resources allocated for the first-level SCI 320-L can be mapped to the multiplexed resources of the first-level SCI at 320-M and 320-N. Similarly, resources allocated for the second-level SCI 325-J can be mapped to the multiplexed resources of the second-level SCI at 325-K to 325-M. Control channel AGC resources 305 and data channel AGC resources 310 can remain identical after mapping. The mapping scheme shown in resource mapping scheme 304 can provide a certain degree of frequency diversity (e.g., more frequency diversity than the original resource allocation) by remapping SCI resources to cover a larger portion of the bandwidth of sub-channels 335-e and 335-f. As shown in resource mapping scheme 304, SCIs (e.g., first-level SCI 320 or second-level SCI 325) can be split or partitioned to occupy two different subsets of frequency resources within a symbol 330.

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

[0147] Figure 4A and Figure 4B Examples of resource mapping schemes 401 and 402 supporting side-link communication reliability according to one or more aspects of this 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 provided by UE 115 (which may represent reference to...) Figure 1 -3 describes an example of UE 115) or various aspects of UE 115. See reference... Figure 2 As described, one or more of resource mapping schemes 401 or 402 can be implemented by UE 115 to map sidelink communication resources allocated in the logical domain or virtual domain to physical sidelink communication resources (e.g., to improve frequency diversity of sidelink control channels, sidelink data channels, or both).

[0148] For example, UE 115 can use resource element 405 (e.g., micro-slots) to map side-side crosslink resources allocated in the logical domain to physical side-side crosslink resources. Resource element 405 may represent a first number of REs (e.g., X (one RE) and the second number of symbols 430 (e.g., Y The resource unit 405 is a communication resource in the dimension of OFDM symbols. It can be configured for different resource pools, for example, based on the type of communication service 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-level SCI 420 occupies a first number of symbols 430 (e.g., the first three symbols 430), the definition or configuration of the resource unit 405 for the SCI portion can be applied to the resource mapping for the first number of symbols 430 (e.g., and the configuration of the resource unit 405 for the data portion can be applied to the remaining symbols 430).

[0149] Resource unit mapping (e.g., any combination of resource units 405 of different sizes or numbers) can be used to map resources between logical resource units (e.g., allocated) and physical resource units (e.g., used for transmission). In the examples shown by resource mapping schemes 401 and 402, 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 data channel 415, first-level SCI 420, and second-level 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 data channel 415, first-level SCI 420, and second-level 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 be applied to Mode 1 and Mode 2 resource allocations using resources from resource pool 445. In some cases, a portion of resource pool 445 can be configured to support direct mapping (e.g., without changing resources) of UEs 115 that can use continuous frequency allocation (e.g., based on UE 115 configuration or UE 115 communication). Resource mapping schemes 401 and 402 can support both continuous and discontinuous frequency resource allocations as well as intra-TTI and inter-TTI hopping (e.g., based on resource element 405 granularity and resource mapping configuration).

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

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

[0153] Figure 5A and Figure 5B Examples of resource mapping schemes 501 and 502 supporting side-link communication reliability according to one or more aspects of this disclosure are shown. 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 scheme 401 or 402. For example, one or more of resource mapping schemes 501 or 502 can be implemented by UE 115 (which may represent reference to...) Figure 1 -4 describes an example of UE 115) or various aspects of UE 115. See reference... Figure 2 As described, one or more of the resource mapping schemes 501 or 502 can be implemented by UE 115 to map sidelink communication resources allocated in the logical domain or virtual domain to physical sidelink communication resources (e.g., to improve frequency diversity of the sidelink control channel, sidelink data channel, or both).

[0154] Resource mapping schemes 501 and 502 may illustrate corresponding examples of mapping resource units (e.g., as described with reference to FIG4) from a logical domain or virtual domain to a physical domain. In some examples, resource units may represent RBs or RB groups, and resource mapping schemes 501 and 502 may represent RB mapping schemes or RB group mapping schemes. RB groups may be configurable (e.g., dynamically configurable) such that different RB group sizes can be supported for the mapping schemes described herein. According to the mapping schemes described herein, physical resources can be interleaved to increase frequency diversity. The minimum interleaving unit may correspond to one RB or may be smaller, for example, the number of REs corresponding to a RE group (e.g., four REs).

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

[0156] Based on resource mapping scheme 501, a virtual resource unit 505 with an index of "1" can be mapped to a physical resource unit with an index of "7" (e.g., the first physical resource unit 510 of the second group 520), a virtual resource unit 505 with an index of "3" can be mapped to a physical resource unit with an index of "8" (e.g., the second physical resource unit 510 of the second group 520), and so on. A virtual resource unit 505 with an index of "2" can be mapped to a physical resource unit with an index of "1" (e.g., the first physical resource unit 510 of the first group 515), a virtual resource unit 505 with an index of "4" can be mapped to a physical resource unit with an index of "2" (e.g., the second physical resource unit 510 of the first group 515), and so on. For example, a virtual resource unit 505 can have an index 525 given by an equation such as equation (1): (1) in The corresponding index 525 represents virtual resource unit 505. An indicator that the index 525 is even or odd (e.g., a value of "0" for an even index and a value of "1" for an odd index), and It can be based on and The obtained value of index 530 is then used to determine the 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 equations such as equation (2): (2) in The corresponding index 530 represents the physical resource unit 510. Indicates the use of based on and The value obtained from equation (1) An indicator that the index 525 of the corresponding logical resource unit 505 is even or odd (e.g., a value of "0" for an even index and a value of "1" for an odd index), and This represents half of the total number of resource units.

[0157] In the second example shown by resource mapping scheme 502, consecutive virtual resource units 505 can be mapped to physical resource units 510, which are separated by at least an offset of 525 (e.g., interleaver depth). For example, a virtual resource unit 505 with an index of "0" can be mapped to a physical resource unit with an index of "0", a virtual resource unit 505 with an index of "1" can be mapped to a physical resource unit with an index of "4" (e.g., at an offset of 525 from index "0"), a virtual resource unit 505 with an index of "2" can be mapped to a physical resource unit with an index of "8" (e.g., at an offset of 525 from index "4"), and so on.

[0158] Based on one or more of the examples described herein, UE 115 can transmit sidelink packets or communications to another UE 115 (e.g., using resource mapping). The techniques described herein can increase communication reliability and thus increase the likelihood of successfully sending or receiving sidelink packets.

[0159] Figure 6Examples of a communication duplication scheme 600 supporting side-link communication reliability according to one or more aspects of this disclosure are shown. In some examples, the communication duplication scheme 600 may implement aspects of wireless communication systems 100 or 200. For example, the communication duplication scheme 600 may be provided by UE 115 (which may represent reference to...) Figure 1 -5 describes an example of UE 115) or various aspects of UE 115. See reference... Figure 2 As described, the communication repetition scheme 600 can be implemented by UE 115 to repeat side link communication and increase the reliability of side link communication.

[0160] For reference Figure 2 As described, UE 115 may be configured (e.g., via a configuration transmitted through base station 105, UE 115, or another UE 115) with an aggregation factor for sidelink packet 605 (e.g., sidelink data channel and / or sidelink control channel communication). The aggregation factor may represent, for example, the number of times sidelink packet 605 will be repeated before sending or receiving feedback for sidelink packet 605 (e.g., 1, 2, 3, 4, 7, 8, 12, or 16 repetitions). The aggregation factor may be a number configured, for example, via RRC signaling, and may or may not include SCI or Downlink Control Information (DCI) activation. In some cases, repetitions of sidelink packet 605 may be combined for feedback (e.g., using soft HARQ combination), and in some cases, repetitions of sidelink packet 615 may be used to improve reliability without combining for feedback (e.g., feedback may not be sent by UE 115). The feedback configuration may be configured, for example, via RRC signaling, and may be based on the capabilities of UE 115.

[0161] Repeating sidelink packets 605 can reduce latency, for example, by reducing the waiting time in the feedback process to re-provide information that may not have been correctly received by sidelink packets 605. Additionally, in Mode 1, repeating sidelink packets 605 can reduce control transmission overhead (e.g., DCI overhead) used to schedule multiple transmissions. UEs 115 with limited power or bandwidth capabilities can support techniques for repeating sidelink packets 605 based on an aggregation factor.

[0162] In the example shown by communication repetition scheme 600, UE 115 can be configured with an aggregation factor that instructs UE 115 to repeat side-link packets 605 multiple times (e.g., (Next time). UE 115 can be used Sidelink packet 605 is repeated in consecutive TTIs 615 (e.g., time slots), for example, starting with sidelink packet 605-A in TTI 615-a and ending with sidelink packet 605-G in TTI 615-b. After sending or receiving sidelink packet 605-G, for example, if the sidelink packet is configured for feedback (e.g., if UE 115 sends a feedback request), UE 115 may prepare and send feedback within feedback timing 610, or may receive feedback within feedback timing 610. If feedback is not configured, UE 115 may not be configured with feedback timing 610, such as... Figure 6 The timing of feedback 610 is indicated by a dashed line. If feedback is configured, it can be based on all repetitions of the side link packet 605, as described herein. In some cases, the frequency resources used for the repetitions of the side link packet 605 may differ, or frequency hopping may occur between repetitions of the side link packet 605 (e.g., supported by an offset from the upper transport layer). In some cases, the frequency resources used for the repetitions of the side link packet 605 may be at least partially the same (if not completely identical).

[0163] In some examples, the duplication of sidelink packet 605 can represent blind duplication and can be transmitted using a shared resource pool (e.g., a contention-based resource pool 630). For example, UE 115 (or another UE 115) can autonomously select resources from the contention-based resource pool 630 for transmitting the duplication of sidelink packet 605 by using a sensing policy or a priority policy (e.g., because the resources may frequently suffer from transmission conflicts from other UE 115). For example, UE 115 (or another UE 115) can autonomously select resources from the contention-based resource pool 630 for transmitting the duplication of sidelink packet 605 based on a configuration for detecting overlapping transmissions 625 (e.g., one or more duplications of sidelink packet 605 overlapping with one or more other transmissions 620) or based on a transmission priority 635 (e.g., the duplication of sidelink packet 605).

[0164] Signalling from base station 105 or another UE 115 (e.g., RRC signaling) can instruct the configuration of the shared resource pool. If repeated feedback is configured for sidelink packet 605 (e.g., at feedback timing 610), UE 115 can be configured to use resources not included in the shared resource pool. Each repeated RV-ID for sidelink packet 605 can be cycled through from a list of RV-IDs, for example, selecting an RV-ID (e.g., {0,2,3,1}, {0,0,0,0}, or {0,3,0,3}) from one or more lists configured for UE 115 along with an aggregation factor.

[0165] Duplicates of sidelink packet 605 can be sent without using SCI (e.g., SCI 0_1 or SCI 0_2) to schedule duplicates. For example, SCI 0_1 may not be associated with duplicates of sidelink packet 605 because resources for duplicates can be selected from a contention-based resource pool 630 rather than a scheduling-based resource pool. Similarly, SCI 0_2 can be skipped because the RV-ID of duplicates of sidelink packet 605 can be defined by the upper communication layer.

[0166] Based on one or more of the examples described herein, UE 115 can transmit sidelink packets or communications 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 sending or receiving sidelink packets.

[0167] Figure 7 An example of a process flow 700 supporting side-link communication reliability according to one or more aspects of this disclosure is shown. In some examples, process flow 700 may be implemented by or by aspects of wireless communication system 100 or 200. For example, the process flow may be implemented by UE 115-c and UE 115-d, which may represent references to Figure 1-6 An example of UE 115 as described.

[0168] In the following description of process flow 700, operations between UE 115-c and UE 115-d may be transmitted in a different order than shown, or operations performed by UE 115-c and UE 115-d may be performed in a different order or at different times. For example, specific operations may be omitted from process flow 700, or other operations may be added to process flow 700. Although UE 115-c and UE 115-d are shown as performing operations of process flow 700, some aspects of some operations may also be performed by one or more other wireless devices. For example, base station 105 may perform aspects of instructing configuration to UE 115-c or allocating resources to UE 115-c.

[0169] At 705, UE 115-c can receive or identify configurations for increasing the reliability of sidelink communication (e.g., sidelink data packets). For example, UE 115-c can receive indications of the configuration from UE 115-d, another UE 115, or 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 may include information about aggregation factors, associated resource pools, and associated feedback. Alternatively or additionally, the configuration may be associated with or include information for mapping communication resources (e.g., logical communication resources) allocated for sidelink control channels and sidelink data channels to corresponding physical communication resources.

[0170] At 710, if UE 115-c is configured to map logical communication resources to physical communication resources, UE 115-c can identify the first communication resources allocated to UE 115-c for the sidelink control channel and the sidelink data channel. The first communication resources allocated for the sidelink control channel may occupy or cover a first bandwidth. The first communication resources may be allocated to UE 115-c by base station 105 or by UE 115-d, or UE 115-c may allocate the first communication resources. The first communication resources may be included in the logical domain.

[0171] At 715, if UE 115-c is configured to map logical communication resources to physical communication resources, then UE 115-c can, based on this configuration, map the first communication resource to a second communication resource (e.g., physical communication resource) used for the sidelink control channel and the sidelink data channel. The second communication resource allocated for the sidelink control channel can cover a second bandwidth larger than the first bandwidth.

[0172] UE 115-c can map resources according to one or more of the examples described herein. For instance, UE 115-c can map resources according to a multiplexing configuration for sidelink control channels (e.g., including Level 1 SCI) and sidelink data channels (e.g., including Level 2 SCI and other data). Alternatively, UE 115-c can map resources using one or more resource elements and a mapping scheme configured for the resource pool used by UE 115-c. In some cases, UE 115-c can map resources using a mapping scheme and corresponding indexes of one or more resource elements.

[0173] At 720, if UE 115-c is configured with an aggregation factor for repeating sidelink communication, UE 115-c can identify the number of repeats associated with the sidelink communication. The number of repeats can be configured for feedback instances and can be based on the aggregation factor configured for UE 115-c.

[0174] At 725, if UE 115-c is configured with an aggregation factor for repeated sidelink communication, UE 115-c can identify a pool of communication resources that includes one or more contention-based communication resources for sidelink communication. For example, UE 115-c can identify repeated communication resource pools for transmitting sidelink communication. For example, communication resource pools can be configured for UE 115-c and other UE 115s (e.g., via configuration signaling).

[0175] At 730, UE 115-c can transmit (e.g., send or receive) sidelink communication with UE 115-d. For example, if UE 115-c is configured to map logical communication resources to physical communication resources, UE 115-c can communicate with UE 115-d using a second communication resource (e.g., a physical communication resource). If UE 115-c is configured with an aggregation factor for repeating sidelink communication, UE 115-c can use contention-based communication resources from a communication resource pool to transmit sidelink communication, and can transmit repeats of sidelink communication in each of several consecutive time periods associated with that number of repeats. For example, UE 115-c can repeat sidelink communication in several consecutive time periods equal to the number of repeats. Each repeat of sidelink communication may not be associated with control information used for scheduling. For example, the control information used for scheduling repeats may not be based on redundancy information identified by UE 115-c and / or based on using contention-based resources to transmit repeats.

[0176] Figure 8 A block diagram 800 of a device 805 supporting side-link communication reliability according to one or more aspects of this disclosure is shown. Device 805 may be an example of various aspects of UE 115 as described herein. Device 805 may include a receiver 810, a communication manager 815, and a transmitter 820. Device 805 may also include a processor. Each of these components may communicate with each other (e.g., via one or more buses).

[0177] 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 the reliability of sidelink communication). It can transmit this information to other components of device 805. Receiver 810 can be a reference... Figure 11 Examples of various aspects of the transceiver 1120 are described. The receiver 810 may utilize a single antenna or a set of antennas.

[0178] According to the examples disclosed herein, the communication manager 815 can support wireless communication at the first UE. For example, the communication manager 815 can 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 communication manager 815 can be configured or otherwise supported to map, based on this configuration, a first communication resource allocated to the first UE for the sidelink control channel and sidelink data channel to a second communication resource for the sidelink control channel and sidelink data channel, 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 larger than the first bandwidth. The communication manager 815 can be configured or otherwise supported to communicate with the second UE using the second communication resource.

[0179] Alternatively or additionally, according to the examples disclosed herein, the communication manager 815 may support wireless communication at the UE. For example, the communication manager 815 may be configured or otherwise supported to include elements for receiving signaling indicating a communication resource pool, which includes one or more contention-based communication resources for sidelink communication. The communication manager 815 may be configured or otherwise supported to include elements for receiving signaling indicating the number of repetitions associated with the communication resource pool. The communication manager 815 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.

[0180] Alternatively or additionally, according to the examples disclosed herein, the communication manager 815 may support wireless communication at the first UE. For example, the communication manager 815 may be configured or otherwise support elements for performing the following operations: 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 applicable to 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 815 may be configured or otherwise support elements for performing the following operations: based on the configuration, mapping logical communication resource elements of the first communication resources to physical communication resource elements of second communication resources for the sidelink control channels and sidelink data channels, the logical communication resource elements and physical communication resource elements each including a first number of resource elements and a second number of symbols. The communication manager 815 may be configured or otherwise support elements for communicating with the second UE using the second communication resources.

[0181] Alternatively or additionally, according to the examples disclosed herein, the communication manager 815 may support wireless communication at the first UE. For example, the communication manager 815 may be configured or otherwise support elements for performing the following operations: 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 815 may be configured or otherwise support elements for performing the following operations: based on the configuration, mapping 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 resource elements and a second number of symbols. The communication manager 815 may be configured or otherwise support elements for communicating with the second UE using the second communication resources.

[0182] The communication manager 815 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.

[0183] The communication manager 815 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 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. The communication manager 815 may be an example of aspects of the communication manager 1110 described herein.

[0184] The communication manager 815 may be an example of a unit for performing various aspects of managing sidelink communications as described herein. The communication manager 815 or its sub-components may be implemented in hardware (e.g., in a communication management circuit). This circuit may include a processor, digital signal processor (DSP), application-specific integrated circuit (ASIC), field-programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof, designed to perform the functions described herein.

[0185] In another implementation, the communication manager 815 or its subcomponents may be implemented using processor-executable code (e.g., as communication management software or firmware) or any combination thereof. If implemented using processor-executable code, the functionality of the communication manager 815 or its subcomponents may be executed by a general-purpose processor, DSP, ASIC, FPGA, or other programmable logic device.

[0186] In some examples, the communication manager 815 can be configured to use the receiver 810, the transmitter 820, or both, or otherwise cooperate with the receiver 810, the transmitter 820, or both to perform various operations (e.g., receive, confirm, send).

[0187] The communication manager 815 or its sub-components 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 sub-components may be separate and distinct components, according to various aspects of this disclosure. In some examples, the communication manager 815 or its sub-components 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.

[0188] 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.

[0189] 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.

[0190] 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).

[0191] 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.

[0192] 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.

[0193] 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.

[0194] 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.

[0195] 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.

[0196] 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.

[0197] 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.

[0198] 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 UE 115's processor can identify one or more aspects of the sidelink resource configuration. The radio device's processor 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., improved communication quality through strategically supporting resource remapping or communication duplication), and other improvements.

[0199] 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 directly or indirectly with each other (e.g., via one or more buses).

[0200] 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.

[0201] 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.

[0202] 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.

[0203] 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.

[0204] 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.

[0205] 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.

[0206] 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.

[0207] 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.

[0208] 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.

[0209] 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.

[0210] 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.

[0211] 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.

[0212] 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.

[0213] 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.

[0214] 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.

[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 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.

[0216] 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.

[0217] 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.

[0218] 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.

[0219] 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.

[0220] 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).

[0221] 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.

[0222] 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.

[0223] 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.

[0224] 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.

[0225] 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.

[0226] 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.

[0227] 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 an operating system such as iOS®, ANDROID®, MS-DOS®, MS-WINDOWS®, OS / 2®, UNIX®, LINUX®, or another known operating system. In other cases, I / O controller 1115 can represent or interact with a modem, keyboard, mouse, touchscreen, or similar device. In some cases, I / O controller 1115 can be implemented as part of a processor. In some cases, a user can interact with device 1105 via I / O controller 1115 or via hardware components controlled by I / O controller 1115.

[0228] 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.

[0229] 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.

[0230] 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.

[0231] 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).

[0232] 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.

[0233] 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.

[0234] 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.

[0235] 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.

[0236] 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.

[0237] Figure 13 A 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.

[0238] 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.

[0239] 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.

[0240] 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.

[0241] 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.

[0242] 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.

[0243] 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.

[0244] 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.

[0245] Figure 15A 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.

[0246] 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.

[0247] 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.

[0248] 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.

[0249] 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.

[0250] 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.

[0251] 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.

[0252] 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.

[0253] 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.

[0254] 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.

[0255] 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 11The described configuration receives the component to execute.

[0256] 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.

[0257] 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.

[0258] 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.

[0259] 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.

[0260] 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.

[0261] 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.

[0262] 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.

[0263] 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.

[0264] 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.

[0265] 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.

[0266] 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.

[0267] 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.

[0268] 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.

[0269] 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.

[0270] The following provides an overview of the various aspects of this disclosure:

[0271] 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.

[0272] 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.

[0273] 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.

[0274] 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.

[0275] 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.

[0276] 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.

[0277] 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.

[0278] 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.

[0279] 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.

[0280] 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.

[0281] 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.

[0282] 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.

[0283] 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.

[0284] 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.

[0285] 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.

[0286] 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.

[0287] Aspect 17: In the method according to any one of Aspects 10 to 16, the number of repetitions is associated with feedback.

[0288] Aspect 18: In the method according to any one of Aspects 10 to 16, the number of repetitions is not related to the feedback.

[0289] 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.

[0290] 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.

[0291] 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.

[0292] 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.

[0293] 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.

[0294] 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.

[0295] 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.

[0296] 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.

[0297] 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.

[0298] 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.

[0299] 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.

[0300] 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.

[0301] 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.

[0302] 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.

[0303] 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.

[0304] 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.

[0305] 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.

[0306] 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.

[0307] 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.

[0308] 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.

[0309] 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.

[0310] 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.

[0311] 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.

[0312] 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.

[0313] 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.

[0314] 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.

[0315] 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.

[0316] 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.

[0317] 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.

[0318] 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.

[0319] 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.

[0320] 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.

[0321] Aspect 51: The method according to any one of aspects 46 to 50 further includes: transmitting configuration signaling indicating the number of repetitions.

[0322] Aspect 52: The method according to any one of aspects 46 to 51 further includes: receiving configuration signaling instructing the communication resource pool.

[0323] Aspect 53: The method according to any one of aspects 46 to 52, wherein the number of repetitions is configured for feedback instances.

[0324] 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.

[0325] 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.

[0326] 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.

[0327] 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.

[0328] 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.

[0329] 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.

[0330] 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.

[0331] 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.

[0332] 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.

[0333] 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.

[0334] 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.

[0335] 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.

[0336] Aspect 66: An apparatus for wireless communication, comprising at least one unit for performing the method of any one of aspects 31 to 45.

[0337] 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.

[0338] 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.

[0339] Aspect 69: An apparatus for wireless communication, comprising at least one unit for performing the method of any one of aspects 46 to 53.

[0340] 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.

[0341] 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.

[0342] 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.

[0343] 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.

[0344] 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).

[0345] 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.

[0346] 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 units of program code 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.

[0347] 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".

[0348] 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.

[0349] 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.

[0350] 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. An apparatus for wireless communication, comprising: One or more memory units; as well as One or more processors coupled to the one or more memories and configured to cause the device 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, first communication resources allocated to a first user equipment (UE) for the sidelink control channel and the sidelink data channel are mapped to second communication resources 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, and the second communication resources for the sidelink control channel cover a second bandwidth larger than the first bandwidth; and Use the second communication resource to communicate with the second UE.

2. An apparatus for wireless communication, comprising: One or more memory units; as well as One or more processors coupled to the one or more memories and configured to cause the device to perform the following operations: Receive signaling indicating a communication resource pool, the communication resource pool including one or more contention-based communication resources for sidelink communication; Receive signaling indicating the number of repetitions associated with the communication resource pool; as well as Using contention-based communication resources from the communication resource pool, repetitions of sidelink communication are transmitted in each of several consecutive time periods associated with the number of repetitions, each repetition of sidelink communication being unassociated with control information for scheduling.

3. The apparatus of claim 2, wherein the one or more processors are further configured to cause the apparatus to perform the following operations: The selection of contention-based communication resources from the communication resource pool for transmitting the repetitions of the sidelink communication is based at least in part on configurations for transmission priority or for detecting overlapping transmissions.

4. The apparatus of claim 2, wherein the repeated processors configured to transmit the side-link communication are further configured to cause the apparatus to perform the following operations: The side link communication is transmitted in continuous repetition using at least partially different frequency ranges.

5. An apparatus for wireless communication, comprising: One or more memory units; as well as One or more processors coupled to the one or more memories and configured to cause the device to 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, the configuration being applicable to a communication resource pool including first communication resources allocated to a first user equipment (UE) for the sidelink control channel and the sidelink data channel; At least in part based on the configuration, logical communication resource units of the first communication resource are mapped to physical communication resource units of the second communication resource for the sidelink control channel and the sidelink data channel, each of the logical communication resource unit and the physical communication resource unit comprising a first number of resource elements and a second number of symbols; and Use the second communication resource to communicate with the second UE.

6. The apparatus of claim 5, wherein 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 larger than the first bandwidth.

7. The apparatus of claim 5, wherein the first number of resource elements and the second number of symbols are at least partially based on a communication type, the communication type including control information, or data, or both.

8. An apparatus for wireless communication, comprising: One or more memory units; as well as One or more processors coupled to the one or more memories and configured to cause the device to 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, the configuration being used for a communication resource pool, the communication resource pool including first communication resources allocated to a first user equipment (UE) for the sidelink control channel and the sidelink data channel; At least in part based on the configuration, the indices of a plurality of logical communication resource units of the first communication resource are mapped to the indices of a plurality of physical communication resource units of the second communication resource for the sidelink control channel and the sidelink data channel, each of the plurality of logical communication resource units and the plurality of physical communication resource units comprising a first number of resource elements and a second number of symbols; and Use the second communication resource to communicate with the second UE.

9. The apparatus of claim 8, wherein 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 larger than the first bandwidth.

10. The apparatus of claim 8, wherein the one or more processors are further configured to cause the apparatus to perform the following operations: Mapping the consecutive even indices of the plurality of logical communication resource units to consecutive indices of a first subset of the plurality of physical communication resource units; and Map 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.

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