Channel state information reporting based on sub-resource pools for sidelink communications

Abstract

Methods, systems, and devices for wireless communication are described. A first network node (e.g., a reduced capability user equipment (UE)) may receive first control information indicating a resource pool for sidelink communication with a second network node, the resource pool including a set of resources. The first network node may receive second control information indicating a plurality of non-overlapping sub-resource pools of the resource pool, where each sub-resource pool may include one or more non-overlapping resources of the resource pool. In some cases, the second control information may indicate one or more frequency hopping modes for probing the sub-resource pools. The first network node may communicate with the second network node based on one or more of the sub-resource pools (e.g., via a sidelink). In some cases, the first network node may transmit a medium access control (MAC) control element (MAC-CE) indicating channel state information (CSI) for the corresponding sub-resource pool.

Description

[0001] Cross-references

[0002] This patent application claims priority to U.S. patent application No. 18 / 158,459, filed by Elshafie et al. on January 23, 2023, entitled “CHANNEL STATE INFORMATION REPORTING BASED ON SUB-RESOURCE POOLS FOR SIDELINK COMMUNICATIONS,” which is assigned to the assignee of this application. Background Art

[0003] The following relates to wireless communications, including channel state information (CSI) reporting based on a sub-resource pool for sidelink communications. Wireless communication systems are widely deployed to provide various types of communication content, such as voice, video, packet data, messaging, broadcasting, and the like. 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 (such as long term evolution (LTE) systems, advanced 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 techniques such as code division multiple access (CDMA), time division multiple access (TDMA), frequency division multiple access (FDMA), orthogonal FDMA (OFDMA), or discrete Fourier transform spread orthogonal frequency division multiplexing (DFT-S-OFDM). A wireless multiple access communication system may include one or more base stations, each of which supports wireless communications for communication devices, which may be referred to as user equipment (UE). Summary of the Invention

[0004] The described techniques relate to improved methods, systems, devices, and apparatuses for supporting channel state information (CSI) reporting based on sub-resource pools for sidelink communication. For example, the described techniques provide for improving multiplexing and CSI reporting of network nodes supporting sidelink communication using sub-resource pools. In some aspects, a user equipment (UE) (e.g., a first network node) may receive control information indicating a resource pool for sidelink communication with other UEs. Additionally, the UE may receive control information indicating a set of multiple sub-resource pools for sidelink communication, where the sub-resource pools may be non-overlapping portions of the resource pool. For example, if a resource pool includes a set of resources, each sub-resource pool may include a subset of the set of resources, where one or more resources in the sub-resource pool are non-overlapping, and where the sub-resources themselves are non-overlapping. Additionally, each sub-resource pool may correspond to a corresponding set of channel types, a corresponding set of channel conditions, or a corresponding set of operating parameters. The UE may use one or more of the sub-resource pools to communicate (e.g., participate in sidelink communication) with one or more other UEs (e.g., a second network node). For example, the UE may use the sub-resource pool to communicate sidelink reference signals and CSI reports (eg, in a medium access control (MAC) control element (MAC-CE)).

[0005] A method for wireless communication at a first network node is described. The method may include: receiving first control information indicating a resource pool for sidelink communication between the method and a second network node, wherein the resource pool includes a set of multiple resources; receiving second control information indicating a set of multiple sub-resource pools for sidelink communication between the first network node and the second network node, wherein each sub-resource pool in the set of multiple sub-resource pools includes one or more resources from a set of multiple resources corresponding to the resource pool, wherein the one or more resources of each respective sub-resource pool in the set of multiple sub-resource pools are non-overlapping with other sub-resource pools in the set of multiple sub-resource pools, and wherein each respective sub-resource pool in the set of multiple sub-resource pools corresponds to at least one of the following: a respective set of channel types, a respective set of channel conditions, or a respective set of operating parameters; and communicating with the second network node based on the one or more sub-resource pools in the set of multiple sub-resource pools.

[0006] An apparatus for wireless communication at a first network node is described. The apparatus may include a memory and at least one processor coupled to the memory, wherein the at least one processor is configured to: receive first control information indicating a resource pool for use in the method and sidelink communication between a second network node, wherein the resource pool includes a set of multiple resources; receive second control information indicating a set of multiple sub-resource pools for sidelink communication between the first network node and the second network node, wherein each sub-resource pool in the set of multiple sub-resource pools includes one or more resources from a set of multiple resources corresponding to the resource pool, wherein the one or more resources of each respective sub-resource pool in the set of multiple sub-resource pools are non-overlapping with other sub-resource pools in the set of multiple sub-resource pools, and wherein each respective sub-resource pool in the set of multiple sub-resource pools corresponds to at least one of the following: a corresponding set of channel types, a corresponding set of channel conditions, or a corresponding set of operating parameters; and communicate with the second network node based on the one or more sub-resource pools in the set of multiple sub-resource pools.

[0007] Another apparatus for wireless communication at a first network node is described. The apparatus may include: means for receiving first control information indicating a resource pool for use in the method and sidelink communication between a second network node, wherein the resource pool includes a set of multiple resources; means for receiving second control information indicating a set of multiple sub-resource pools for sidelink communication between the first network node and the second network node, wherein each sub-pool in the set of multiple sub-resource pools includes one or more resources from a set of multiple resources corresponding to the resource pool, wherein the one or more resources of each respective sub-pool in the set of multiple sub-resource pools are non-overlapping with other sub-pools in the set of multiple sub-resource pools, and wherein each respective sub-pool in the set of multiple sub-resource pools corresponds to at least one of: a respective set of channel types, a respective set of channel conditions, or a respective set of operating parameters; and means for communicating with the second network node based on one or more sub-pools in the set of multiple sub-resource pools.

[0008] A non-transitory computer-readable medium having stored thereon code for wireless communication. The code, when executed by a network node, causes the first network node to: receive first control information indicating a resource pool for use in the method and sidelink communication between a second network node, wherein the resource pool includes a set of multiple resources; receive second control information indicating a set of multiple sub-resource pools for use in sidelink communication between the first network node and the second network node, wherein each sub-resource pool in the set of multiple sub-resource pools includes one or more resources from a set of multiple resources corresponding to the resource pool, wherein the one or more resources of each respective sub-resource pool in the set of multiple sub-resource pools are non-overlapping with other sub-resource pools in the set of multiple sub-resource pools, and wherein each respective sub-resource pool in the set of multiple sub-resource pools corresponds to at least one of the following: a respective set of channel types, a respective set of channel conditions, or a respective set of operating parameters; and communicate with the second network node based on the one or more sub-resource pools in the set of multiple sub-resource pools.

[0009] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the second control information indicates one or more differences between the set of the plurality of sub-resource pools and the resource pool.

[0010] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the second control information indicates a respective size of each sub-resource pool in the set of multiple sub-resource pools, where the respective size of each sub-resource pool can be based on capabilities of the method.

[0011] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for sending, in a common resource pool that may be common to a set of multiple network nodes including the first network node and the second network node, information indicating a change in a respective activation state of at least respective one or more resources of each sub-resource pool.

[0012] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the common resource pool may be a primary resource pool associated with a primary component carrier, a primary sub-resource pool within a primary resource pool associated with a primary component carrier, or a secondary resource pool associated with a secondary component carrier.

[0013] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for applying a change in a corresponding activation state based on corresponding acknowledgement (ACK) information from one or more network nodes in a set of multiple network nodes that are different from the first network node and the second network node.

[0014] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the information indicative of changes in respective activation states may indicate respective changes in activation states on a per sub-resource pool basis.

[0015] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for receiving a resource grant in downlink control information (DCI) or sidelink control information (SCI) that schedules one or more transmissions in one or more sub-resource pools in a set of multiple sub-resource pools, where the resource grant can be a dynamic grant or a configured grant.

[0016] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, receiving a resource grant in a DCI or SCI may include operations, features, components, or instructions for performing the following operations: receiving a respective SCI corresponding to each respective one or more transmissions that can be scheduled.

[0017] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, one or more transmissions scheduled in one or more sub-resource pools include sidelink channel transmissions that can be scheduled across the one or more sub-resource pools, and wherein each of the one or more sub-resource pools can be associated with a corresponding redundancy version (RV) of the sidelink channel transmission.

[0018] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for sending a resource grant in an SCI that schedules one or more transmissions in one or more sub-resource pools in a set of multiple sub-resource pools, where the resource grant can be a dynamic grant or a configured grant.

[0019] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for receiving information indicating a change in an activation state of at least one or more resources of each sub-resource pool in a set of multiple sub-resource pools.

[0020] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for receiving a resource grant in a DCI that schedules one or more transmissions in one or more sub-resource pools, wherein the DCI includes, for each of the one or more scheduled transmissions, a corresponding sub-resource pool indication indicating one or more time domain resource allocations (TDRAs) or one or more frequency domain resource allocations (FDRAs) for the corresponding transmission and at least one sub-resource pool from a set of multiple sub-resource pools.

[0021] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for receiving a DCI configured to activate one or more resources corresponding to each sub-resource pool in a set of multiple sub-resource pools, such that the number of activated resources for each sub-resource pool may be less than a threshold amount, wherein the DCI indicates a resource pool index corresponding to the resource pool and one or more sub-resource pool indices corresponding to the activated resources for each sub-resource pool.

[0022] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, communicating with the second network node may include operations, features, components, or instructions for transmitting a sidelink transmission across at least one or more resources in a set of multiple sub-resource pools, wherein at least one or more resources in the set of multiple sub-resource pools may be aligned to facilitate coherent transmission of the sidelink communication or may be offset from one another to avoid overlap in time.

[0023] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, communicating with the second network node may include operations, features, components, or instructions for receiving sidelink transmissions across at least one or more resources in a set of multiple sub-resource pools, wherein at least one or more resources in the set of multiple sub-resource pools may be aligned to facilitate coherent transmission of the sidelink communications or may be offset from one another to avoid overlap in time.

[0024] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, communicating with the second network node may include operations, features, components, or instructions for sending one or more repetitions of data or one or more repetitions of a transport block via different sub-resource pools in a set of multiple sub-resource pools.

[0025] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for receiving control information that schedules at least two different sets of configuration grant transmissions across a set of multiple sub-resource pools, wherein the at least two different sets of configuration grant transmissions may be associated with different TDRAs to prevent temporal overlap between individual configuration grant transmissions in the different sets of configuration grant transmissions.

[0026] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, communicating with the second network node may include operations, features, components, or instructions for communicating with the second network node in a first subset of a set of multiple sub-pools of resources, the first subset may be different from a second subset of the set of multiple sub-pools of resources, the second subset of the multiple sets of sub-pools of resources allocated for use by a network node that may have lower power or lower bandwidth relative to the method.

[0027] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the corresponding set of channel types includes a physical sidelink shared channel, a physical sidelink control channel, or a physical sidelink feedback channel, and wherein the corresponding set of channel conditions includes the number of subchannels, the subchannel size, or the starting resource block, and wherein the corresponding set of operating parameters includes parameters related to code block rate, modulation and coding scheme (MCS), sensing configuration, or power control.

[0028] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, communicating with a second network node may include operations, features, components, or instructions for transmitting one or more sidelink reference signals in a set of multiple sub-resource pools based on one or more frequency hopping patterns, wherein the set of multiple sub-resource pools may be sounded in a single time slot or across a set of multiple time slots according to the one or more frequency hopping patterns.

[0029] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the second control information indicates one or more frequency hopping patterns, wherein each of the one or more frequency hopping patterns can be configured to detect multiple corresponding sub-resource pools in a set of multiple sub-resource pools.

[0030] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the second control information indicates one or more frequency hopping patterns, wherein each of the one or more frequency hopping patterns can be associated with a single corresponding individual sub-resource pool in a set of multiple sub-resource pools.

[0031] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for receiving third control information comprising a set of parameters for sidelink reference signal transmission on a per-sub-resource pool basis, wherein the set of parameters indicates a periodicity, a number of ports, a power offset relative to a channel, or any combination thereof.

[0032] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the second control information indicates a frequency gap between the sets of the plurality of sub-resource pools, the frequency gap being based on a capability of the method.

[0033] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for communicating a reservation request indicating one or more frequency hopping patterns to be applied to sidelink reference signals transmitted or received in a set of multiple sub-resource pools.

[0034] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for multiplexing the transmission of one or more sidelink reference signals with additional sidelink reference signals reserved for transmission over a set of multiple sub-resource pools, wherein the one or more sidelink reference signals may be multiplexed with the additional sidelink reference signals by applying one or more frequency hopping patterns associated with the set of multiple sub-resource pools.

[0035] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, a hopping pattern in the one or more hopping patterns may be associated with a source identifier, a destination identifier, a group common identifier, or an identifier indicated to the method.

[0036] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for receiving third control information, the third control information including a set of parameters related to one or more CSI reports to be sent, values ​​of the set of parameters being based on a number of subchannels in a corresponding sub-resource pool in a set of multiple sub-resource pools.

[0037] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for sending a MAC-CE indicating CSI for a corresponding sub-resource pool in a set of multiple sub-resource pools, the MAC-CE including a codepoint indicating that the CSI is related to a particular sub-resource pool in the set of multiple sub-resource pools.

[0038] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the codepoint may be included within a reserved bit field of a MAC-CE.

[0039] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, sending a MAC-CE may include operations, features, components, or instructions for sending, via a MAC-CE, multiple sets of CSI for corresponding sub-resource pools in a set of multiple sub-resource pools, each set of CSI including a corresponding channel quality indicator (CQI), a corresponding rank indicator (RI), or both.

[0040] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for concurrently sending multiple CSI reports based on capabilities of the method and a number of sub-channels or resources in each sub-resource pool in a set of multiple sub-resource pools.

[0041] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, sending multiple CSI reports may include operations, features, components, or instructions for sending a MAC-CE including a header and one or more bits indicating CSI for each sub-resource pool in a set of multiple sub-resource pools, wherein the header indicates the set of multiple sub-resource pools for which CSI may be reported.

[0042] A method for wireless communication is described. The method may include: sending first control information indicating a resource pool for sidelink communication between a second network node and a third network node, wherein the resource pool includes a set of multiple resources; and sending second control information indicating a set of multiple sub-resource pools for sidelink communication between the second network node and the third network node, wherein each sub-resource pool in the set of multiple sub-resource pools includes corresponding one or more resources from a set of multiple resources corresponding to the resource pool, wherein the corresponding one or more resources of each corresponding sub-resource pool in the set of multiple sub-resource pools are non-overlapping with other sub-resource pools in the set of multiple sub-resource pools, and wherein each corresponding sub-resource pool in the set of multiple sub-resource pools corresponds to at least one of the following: a corresponding set of channel types, a corresponding set of channel conditions, or a corresponding set of operating parameters.

[0043] An apparatus for wireless communication is described. The apparatus may include a memory and at least one processor coupled to the memory, wherein the at least one processor is configured to: transmit first control information indicating a resource pool for sidelink communication between a second network node and a third network node, wherein the resource pool includes a set of multiple resources; and transmit second control information indicating a set of multiple sub-resource pools for sidelink communication between the second network node and the third network node, wherein each sub-resource pool in the set of multiple sub-resource pools includes one or more resources from a set of multiple resources corresponding to the resource pool, wherein the one or more resources of each respective sub-resource pool in the set of multiple sub-resource pools are non-overlapping with other sub-resource pools in the set of multiple sub-resource pools, and wherein each respective sub-resource pool in the set of multiple sub-resource pools corresponds to at least one of the following: a corresponding set of channel types, a corresponding set of channel conditions, or a corresponding set of operating parameters.

[0044] Another apparatus for wireless communication is described. The apparatus may include: means for transmitting first control information indicating a resource pool for sidelink communication between a second network node and a third network node, wherein the resource pool includes a set of multiple resources; and means for transmitting second control information indicating a set of multiple sub-resource pools for sidelink communication between the second network node and the third network node, wherein each sub-resource pool in the set of multiple sub-resource pools includes corresponding one or more resources from a set of multiple resources corresponding to the resource pool, wherein the corresponding one or more resources of each corresponding sub-resource pool in the set of multiple sub-resource pools are non-overlapping with other sub-resource pools in the set of multiple sub-resource pools, and wherein each corresponding sub-resource pool in the set of multiple sub-resource pools corresponds to at least one of the following: a corresponding set of channel types, a corresponding set of channel conditions, or a corresponding set of operating parameters.

[0045] A non-transitory computer-readable medium having stored thereon code for wireless communication. The code, when executed by a network node, causes the first network node to: transmit first control information indicating a resource pool for sidelink communication between a second network node and a third network node, wherein the resource pool includes a set of multiple resources; and transmit second control information indicating a set of multiple sub-resource pools for sidelink communication between the second network node and the third network node, wherein each sub-resource pool in the set of multiple sub-resource pools includes one or more resources from a set of multiple resources corresponding to the resource pool, wherein the one or more resources of each respective sub-resource pool in the set of multiple sub-resource pools are non-overlapping with other sub-resource pools in the set of multiple sub-resource pools, and wherein each respective sub-resource pool in the set of multiple sub-resource pools corresponds to at least one of the following: a corresponding set of channel types, a corresponding set of channel conditions, or a corresponding set of operating parameters.

[0046] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the second control information indicates one or more differences between the set of the plurality of sub-resource pools and the resource pool.

[0047] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the second control information may indicate a respective size of each sub-resource pool in a set of multiple sub-resource pools, where the respective size of each sub-resource pool may be based on capabilities of the second network node.

[0048] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for transmitting a resource grant in a DCI or SCI that schedules one or more transmissions in one or more sub-resource pools in a set of multiple sub-resource pools, wherein the resource grant may be a dynamic grant or a configured grant.

[0049] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for sending information indicating a change in activation state of at least one or more resources of each sub-resource pool in a set of multiple sub-resource pools.

[0050] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for sending a resource grant in a DCI that schedules one or more transmissions in one or more sub-resource pools in a set of multiple sub-resource pools, wherein the DCI includes, for each of the one or more scheduled transmissions, a corresponding sub-resource pool indication that indicates one or more TDRAs or one or more FDRAs for the corresponding transmission and at least one sub-resource pool in the set of multiple sub-resource pools.

[0051] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for sending a DCI configured to activate corresponding one or more resources of each sub-resource pool in a set of multiple sub-resource pools, such that the number of activated resources of each sub-resource pool may be less than a threshold amount, wherein the DCI indicates a resource pool index corresponding to the resource pool and one or more sub-resource pool indices corresponding to the activated resources of each sub-resource pool.

[0052] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for sending control information that schedules at least two different sets of configuration grant transmissions across a set of multiple sub-resource pools, wherein the at least two different sets of configuration grant transmissions may be associated with different TDRAs to prevent temporal overlap between individual configuration grant transmissions in the different sets of configuration grant transmissions.

[0053] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for sending third control information comprising a set of parameters for sidelink reference signal transmission on a per-sub-resource pool basis, wherein the set of parameters indicates a periodicity, a number of ports, a power offset relative to a channel, or any combination thereof.

[0054] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the second control information indicates a frequency gap between the sets of the plurality of sub-resource pools, the frequency gap being based on a capability of the second network node.

[0055] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for sending third control information including a set of parameters related to one or more CSI reports to be sent, values ​​of the set of parameters being based on a number of subchannels in a corresponding sub-resource pool in a set of multiple sub-resource pools.

[0056] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for receiving a MAC-CE indicating CSI for a corresponding sub-resource pool in a set of multiple sub-resource pools, the MAC-CE including a codepoint indicating that the CSI is related to a particular sub-resource pool in the set of multiple sub-resource pools.

[0057] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the codepoint may be included within a reserved bit field of a MAC-CE.

[0058] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, receiving a MAC-CE may include operations, features, components, or instructions for receiving, via the MAC-CE, multiple sets of CSI for corresponding sub-resource pools in a set of multiple sub-resource pools, each set of CSI including a corresponding CQI, a corresponding RI, or both.

[0059] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for concurrently receiving multiple CSI reports based on capabilities of the method and a number of sub-channels or resources in each sub-resource pool in a set of multiple sub-resource pools.

[0060] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, receiving multiple CSI reports may include operations, features, components, or instructions for receiving a MAC-CE including a header and one or more bits indicating CSI for each sub-resource pool in a set of multiple sub-resource pools, wherein the header indicates the set of multiple sub-resource pools for which CSI may be reported. BRIEF DESCRIPTION OF THE DRAWINGS

[0061] Figure 1 An example of a wireless communication system supporting channel state information (CSI) reporting based on a sub-resource pool for sidelink communication according to one or more aspects of the present disclosure is illustrated.

[0062] Figure 2 An example of a wireless communication system supporting CSI reporting based on a sub-resource pool for sidelink communication according to one or more aspects of the present disclosure is illustrated.

[0063] Figure 3 An example of a resource pool supporting CSI reporting based on a sub-resource pool for sidelink communication according to one or more aspects of the present disclosure is illustrated.

[0064] Figure 4An example of a sub-resource pool configuration supporting CSI reporting based on a sub-resource pool for sidelink communication according to one or more aspects of the present disclosure is illustrated.

[0065] Figure 5 and Figure 6 An example of a medium access control (MAC) control element (MAC-CE) supporting CSI reporting based on a sub-resource pool for sidelink communication according to one or more aspects of the present disclosure is illustrated.

[0066] Figure 7 An example of a process flow for supporting CSI reporting based on a sub-resource pool for sidelink communications according to one or more aspects of the present disclosure is illustrated.

[0067] Figure 8 and Figure 9 A block diagram illustrating a device supporting CSI reporting based on a sub-resource pool for sidelink communication according to one or more aspects of the present disclosure is illustrated.

[0068] Figure 10 A block diagram of a communication manager supporting CSI reporting based on a sub-resource pool for sidelink communications is illustrated in accordance with one or more aspects of the present disclosure.

[0069] Figure 11 A diagram illustrating a system including a device supporting CSI reporting based on a sub-resource pool for sidelink communication in accordance with one or more aspects of the present disclosure is illustrated.

[0070] Figures 12 to 16 A flowchart illustrating a method of supporting CSI reporting based on a sub-resource pool for sidelink communication according to one or more aspects of the present disclosure is illustrated. DETAILED DESCRIPTION

[0071] UEs, including power-saving user equipment (UEs) (e.g., reduced capability (RedCap) UEs), may use one or more resource pools to perform sidelink communications. In some aspects, each sub-band of a resource pool may be configured or otherwise associated with an operating mode (e.g., full sensing, partial sensing, etc.), which may cause challenges when multiplexing UEs with different operating modes. Additionally, some sidelink UEs may support channel state information (CSI) reporting, for which the UE may use bandwidth adaptation to send CSI reports by splitting the resource pool into disjoint sets of resources. However, given the limited operating bandwidth of some power-saving UEs, the UE may not be able to perform channel sensing within the entire bandwidth of the resource pool.

[0072] The techniques described herein support the use of sub-resource pools to improve multiplexing and CSI reporting for UEs supporting sidelink communication. In some aspects, a UE (e.g., a first network node) may receive control information indicating a resource pool to be used for sidelink communication with other UEs. In addition, the UE may receive control information indicating a set of multiple sub-resource pools to be used for sidelink communication, where the sub-resource pools may be non-overlapping portions of the resource pool. For example, if a resource pool includes a set of resources, each sub-resource pool may include a subset of the set of resources, where one or more resources in the sub-resource pool are non-overlapping, and where the sub-resources themselves are non-overlapping. Additionally, each sub-resource pool may correspond to a corresponding set of channel types, a corresponding set of channel conditions, or a corresponding set of operating parameters. The UE may use one or more of the sub-resource pools to communicate (e.g., participate in sidelink communication) with one or more other UEs (e.g., a second network node). For example, the UE may use the sub-resource pools to communicate sidelink reference signals and CSI reports (e.g., in a medium access control (MAC) control element (MAC-CE)).

[0073] Various aspects of the present disclosure are first described in the context of a wireless communication system. Then, various aspects of the present disclosure are described in the context of resource pool and sub-resource pool configurations, MAC-CE, and process flows. Furthermore, various aspects of the present disclosure are illustrated by apparatus diagrams, system diagrams, and flow charts related to CSI reporting based on sub-resource pools for sidelink communications, and are described with reference to these diagrams.

[0074] Figure 1 An example of a wireless communication system 100 that supports CSI reporting based on a sub-resource pool for sidelink communication according to one or more aspects of the present disclosure is illustrated. The wireless communication system 100 may include one or more network entities 105, one or more UEs 115, and a core network 130. In some aspects, the wireless communication system 100 may be a Long Term Evolution (LTE) network, an Advanced LTE (LTE-A) network, an LTE-A Pro network, a New Radio (NR) network, or a network operating according to other systems and radio technologies (including future systems and radio technologies not explicitly mentioned herein).

[0075] The network entities 105 may be dispersed throughout a geographic area to form the wireless communication system 100 and may include devices in different forms or with different capabilities. In various examples, the network entities 105 may be referred to as network elements, mobility elements, radio access network (RAN) nodes, or network equipment, among other nomenclature. In some aspects, the network entities 105 and the UEs 115 may communicate wirelessly via one or more communication links 125 (e.g., radio frequency (RF) access links). For example, the network entities 105 may support a coverage area 110 (e.g., a geographic coverage area) within which the UEs 115 and the network entities 105 may establish one or more communication links 125. The coverage area 110 may be an example of a geographic area within which the network entities 105 and the UEs 115 may support signal communication according to one or more radio access technologies (RATs).

[0076] The UEs 115 may be dispersed throughout the coverage area 110 of the wireless communication system 100, and each UE 115 may be stationary or mobile or both stationary and mobile at different times. The UEs 115 may be devices that take different forms or have different capabilities. Figure 1 Some example UEs 115 are illustrated in FIG. 1 . The UEs 115 described herein may be capable of supporting communications with various types of devices, such as other UEs 115 or network entities 105, such as Figure 1 shown.

[0077] As described herein, a node (which may be referred to as a node, network node, network entity, or wireless node) may include, may be, or may be included in (e.g., as a component of) a base station (e.g., any base station described herein), a UE (e.g., any UE described herein), a network controller, a device, an apparatus, a computing system, an integrated access and backhaul (IAB) node, a distributed unit (DU), a central unit (CU), a remote / radio unit (RU) (which may also be referred to as a remote radio unit (RRU)), and / or another processing entity configured to perform any of the techniques described herein. For example, the network node may be a UE. For another example, the network node may be a base station or a network entity. For another example, a first network node may be configured to communicate with a second network node or a third network node. In one aspect of this example, the first network node may be a UE, the second network node may be a base station, and the third network node may be a UE. In another aspect of this example, the first network node may be a UE, the second network node may be a base station, and the third network node may be a base station. In yet other aspects of this example, the first network node, the second network node, and the third network node may be different from these examples. Similarly, references to a UE, a base station, an apparatus, a device, a computing system, etc., may include disclosure of the UE, base station, apparatus, device, or computing system, etc., as a network node. For example, a disclosure that a UE is configured to receive information from a base station also discloses that a first network node is configured to receive information from a second network node. Consistent with the present disclosure, once a specific example is expanded upon according to the present disclosure (e.g., a UE is configured to receive information from a base station also discloses that a first network node is configured to receive information from a second network node), a broader example of the narrower example may be interpreted inversely, but in a broad, open-ended manner. In the above example that a UE is configured to receive information from a base station also discloses that a first network node is configured to receive information from a second network node, the first network node may refer to a first UE, a first base station, a first apparatus, a first device, a first computing system, a first set of one or more components, or a first processing entity, etc., configured to receive information; and the second network node may refer to a second UE, a second base station, a second apparatus, a second device, a second computing system, a second set of one or more components, or a second processing entity, etc.

[0078] As described herein, different terms may be used in various aspects to describe the communication of information (e.g., any information, signal, etc.). Disclosure of one communication term includes disclosure of the other communication terms. For example, a first network node may be described as being configured to send information to a second network node. In this example and consistent with the present disclosure, disclosure that the first network node is configured to send information to the second network node includes disclosure that the first network node is configured to provide, transmit, output, communicate, or send information to the second network node. Similarly, in this example and consistent with the present disclosure, disclosure that the first network node is configured to send information to the second network node includes disclosure that the second network node is configured to receive, obtain, or decode information provided, transmitted, output, communicated, or sent by the first network node.

[0079] In some aspects, the network entities 105 may communicate with the core network 130, with each other, or both. For example, the network entities 105 may communicate with the core network 130 via one or more backhaul communication links 120 (e.g., according to S1, N2, N3, or other interface protocols). In some aspects, the network entities 105 may communicate with each other via the backhaul communication links 120 (e.g., according to X2, Xn, or other interface protocols), either directly (e.g., directly between the network entities 105) or indirectly (e.g., via the core network 130). In some aspects, the network entities 105 may communicate with each other via midhaul communication links 162 (e.g., according to a midhaul interface protocol) or fronthaul communication links 168 (e.g., according to a fronthaul interface protocol), or any combination thereof. The backhaul communication links 120, midhaul communication links 162, or fronthaul communication links 168 may be or include one or more wired links (e.g., electrical links, fiber optic links), one or more wireless links (e.g., radio links, wireless optical links), etc., or various combinations thereof. UE 115 may communicate with core network 130 via communication link 155 .

[0080] One or more of the network entities 105 described herein may include or may be referred to as a base station 140 (e.g., a base transceiver station, a radio base station, an NR base station, an access point, a radio transceiver, a Node B, an evolved Node B (eNB), a next-generation Node B, or a gigabit Node B (any of which may be referred to as a gNB), a 5G NB, a next-generation eNB (ng-eNB), a Home Node B, a Home evolved Node B, or other suitable terminology). In some aspects, the network entity 105 (e.g., a base station 140) may be implemented in a converged (e.g., monolithic, stand-alone) base station architecture that may be configured to utilize a protocol stack that is physically or logically integrated within a single network entity 105 (e.g., a single RAN node, such as the base station 140).

[0081] In some aspects, the network entity 105 can be implemented in a disaggregated architecture (e.g., a disaggregated base station architecture, a disaggregated RAN architecture) that can be configured to utilize protocol stacks that are physically or logically distributed between two or more network entities 105, such as an integrated access backhaul (IAB) network, an open RAN (O-RAN) (e.g., a network configuration sponsored by the O-RAN Alliance), or a virtualized RAN (vRAN) (e.g., a cloud RAN (C-RAN)). For example, the network entity 105 can include one or more of the following: a central unit (CU) 160, a distributed unit (DU) 165, a radio unit (RU) 170, a RAN intelligent controller (RIC) 175 (e.g., a near real-time RIC (near RT RIC), a non-real-time RIC (non-RT RIC)), a service management and orchestration (SMO) 180 system, or any combination thereof. The RU 170 can also be referred to as a radio head, an intelligent radio head, a remote radio head (RRH), a remote radio unit (RRU), or a transmit receive point (TRP). One or more components of the network entity 105 in the disaggregated RAN architecture may be co-located, or one or more components of the network entity 105 may be located in distributed locations (e.g., separate physical locations). In some aspects, one or more network entities 105 of the disaggregated RAN architecture may be implemented as virtual units (e.g., virtual CU (VCU), virtual DU (VDU), virtual RU (VRU)).

[0082] The functional split between the CU 160, DU 165, and RU 170 is flexible and can support different functions depending on which functions (e.g., network layer functions, protocol layer functions, baseband functions, RF functions, and any combination thereof) are performed at the CU 160, DU 165, or RU 170. For example, a functional split of the protocol stack can be employed between the CU 160 and DU 165 such that the CU 160 can support one or more layers of the protocol stack and the DU 165 can support one or more different layers of the protocol stack. In some aspects, the CU 160 can host higher protocol layer (e.g., Layer 3 (L3), Layer 2 (L2)) functionality and signaling (e.g., Radio Resource Control (RRC), Service Data Adaptation Protocol (SDAP), Packet Data Convergence Protocol (PDCP)). The CU 160 may be connected to one or more DUs 165 or RUs 170, and the one or more DUs 165 or RUs 170 may host lower protocol layers, such as Layer 1 (L1) (e.g., physical (PHY) layer) or L2 (e.g., radio link control (RLC) layer, MAC layer) functionality and signaling, and may each be at least partially controlled by the CU 160. Additionally or alternatively, a functional split of the protocol stack may be employed between the DU 165 and the RU 170, such that the DU 165 may support one or more layers of the protocol stack and the RU 170 may support one or more different layers of the protocol stack. The DU 165 may support one or more different cells (e.g., via one or more RUs 170). In some cases, the functional split between the CU 160 and the DU 165 or between the DU 165 and the RU 170 can be within the protocol layer (e.g., some functions of the protocol layer can be performed by one of the CU 160, DU 165, or RU 170, while other functions of the protocol layer are performed by a different one of the CU 160, DU 165, or RU 170). The CU 160 can be further functionally split into CU control plane (CU-CP) and CU user plane (CU-UP) functions. The CU 160 can be connected to one or more DUs 165 via midhaul communication links 162 (e.g., F1, F1-c, F1-u), and the DU 165 can be connected to one or more RUs 170 via fronthaul communication links 168 (e.g., open fronthaul (FH) interface). In some aspects, midhaul communication link 162 or fronthaul communication link 168 may be implemented according to interfaces (eg, channels) between layers of a protocol stack supported by respective network entities 105 communicating via such communication links.

[0083] In some wireless communication systems (e.g., wireless communication system 100), the infrastructure and spectrum resources for radio access may support wireless backhaul link capabilities to supplement wired backhaul connections, thereby providing an IAB network architecture (e.g., to the core network 130). In some cases, in an IAB network, one or more network entities 105 (e.g., IAB nodes 104) may be partially controlled by each other. One or more IAB nodes 104 may be referred to as a donor entity or IAB donor. One or more DUs 165 or one or more RUs 170 may be partially controlled by one or more CUs 160 associated with a donor network entity 105 (e.g., a donor base station 140). One or more donor network entities 105 (e.g., IAB donors) may communicate with one or more additional network entities 105 (e.g., IAB nodes 104) via supported access and backhaul links (e.g., backhaul communication links 120). The IAB node 104 may include an IAB mobile terminal (IAB-MT) controlled (e.g., scheduled) by the coupled IAB donor's DU 165. The IAB-MT may include an independent set of antennas for relaying communications with the UE 115, or may share the same antennas of the IAB node 104 (e.g., of the RU 170) for access via the DU 165 of the IAB node 104 (e.g., referred to as a virtual IAB-MT (vIAB-MT)). In some aspects, the IAB node 104 may include a DU 165 that supports communication links with additional entities (e.g., IAB node 104, UE 115) within a relay chain or configuration (e.g., downstream) of the access network. In such cases, one or more components of the decomposed RAN architecture (e.g., one or more IAB nodes 104 or components of the IAB node 104) may be configured to operate according to the techniques described herein.

[0084] In the context of a disaggregated RAN architecture, one or more components of the disaggregated RAN architecture may be configured to support CSI reporting based on sub-resource pools for sidelink communications as described herein. For example, some operations described as being performed by a UE 115 or a network entity 105 (e.g., a base station 140) may additionally or alternatively be performed by one or more components of the disaggregated RAN architecture (e.g., an IAB node 104, a DU 165, a CU 160, a RU 170, a RIC 175, a SMO 180).

[0085] UE 115 may include or may be referred to as a mobile device, a wireless device, a remote device, a handheld device, or a subscriber device, or some other suitable terminology, where "device" may also be referred to as a unit, a station, a terminal, or a client, etc. UE 115 may also include or may be referred to as a personal electronic device, such as a cellular phone, a personal digital assistant (PDA), a tablet computer, a laptop computer, or a personal computer. In some aspects, UE 115 may include or be referred to as a wireless local loop (WLL) station, an Internet of Things (IoT) device, an Internet of Everything (IoE) device, or a machine type communication (MTC) device, etc., which may be implemented in various objects, such as appliances or vehicles, meters, etc.

[0086] The UE 115 described herein may be capable of communicating with various types of devices, such as other UEs 115, which may sometimes act as relays, as well as network entities 105 and network equipment including macro eNBs or gNBs, small cell eNBs or gNBs, relay base stations, etc. Figure 1 shown.

[0087] The UE 115 and the network entity 105 may wirelessly communicate with each other via one or more communication links 125 (e.g., access links) using resources associated with one or more carriers. The term "carrier" may refer to a collection of RF spectrum resources having a physical layer structure defined for supporting the communication link 125. For example, a carrier used for the communication link 125 may include a portion of an RF 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 for coordinating carrier operations, user data, or other signaling. The wireless communication system 100 may support communications with the UE 115 using carrier aggregation or multi-carrier operation. Depending on the carrier aggregation configuration, the UE 115 may be configured with multiple downlink component carriers and one or more uplink component carriers. Carrier aggregation may be used for both frequency division duplex (FDD) and time division duplex (TDD) component carriers. Communication between the network entity 105 and other devices may refer to communication between those devices and any portion (e.g., entity, sub-entity) of the network entity 105. For example, the terms "send," "receive," or "communicate" when referring to the network entity 105 may refer to any portion of the network entity 105 (e.g., base station 140, CU 160, DU 165, RU 170) of the RAN communicating with another device (e.g., directly or via one or more other network entities 105).

[0088] In some aspects, such as in a carrier aggregation configuration, a carrier may also have acquisition signaling or control signaling to coordinate the operation of other carriers. A carrier may be associated with a frequency channel (e.g., an Evolved Universal Mobile Telecommunications System Terrestrial Radio Access (E-UTRA) Absolute RF Channel Number (EARFCN)) and may be identified according to a channel raster used for discovery by a UE 115. A carrier may operate in a standalone mode, in which case initial acquisition and connection by a UE 115 may occur via the carrier, or a carrier may operate in a non-standalone mode, in which case a different carrier (e.g., of the same or different radio access technology) is used to anchor the connection.

[0089] The communication link 125 shown in the wireless communication system 100 may include downlink transmissions (e.g., forward link transmissions) from the network entity 105 to the UE 115, uplink transmissions (e.g., return link transmissions) from the UE 115 to the network entity 105, or both, as well as other transmission configurations. A carrier may carry downlink communications or uplink communications (e.g., in FDD mode), or may be configured to carry both downlink and uplink communications (e.g., in TDD mode).

[0090] A carrier may be associated with a particular bandwidth of RF spectrum, and in some aspects, the carrier bandwidth may be referred to as the "system bandwidth" of the carrier or wireless communication system 100. For example, the carrier bandwidth may be one of a set of bandwidths of carriers for a particular radio access technology (e.g., 1.4 megahertz (MHz), 3 MHz, 5 MHz, 10 MHz, 15 MHz, 20 MHz, 40 MHz, or 80 MHz). Devices of the wireless communication system 100 (e.g., the network entity 105, the UE 115, or both) may have a hardware configuration that supports communication using a particular carrier bandwidth, or may be capable of being configured to support communication using one of the set of carrier bandwidths. In some aspects, the wireless communication system 100 may include a network entity 105 or a UE 115 that supports concurrent communication using carriers associated with multiple carrier bandwidths. In some aspects, each served UE 115 may be configured to operate using a portion (e.g., a sub-band, a BWP) or all of the carrier bandwidth.

[0091] The signal waveform transmitted via the carrier may include multiple subcarriers (e.g., using a multicarrier modulation (MCM) technique such as orthogonal frequency division multiplexing (OFDM) or discrete Fourier transform spread OFDM (DFT-S-OFDM)). In a system employing MCM techniques, a resource element may refer to the resource of one symbol period (e.g., the duration of one modulation symbol) and one subcarrier, in which case the symbol period and subcarrier spacing may be inversely related. The number of bits carried by each resource element may depend on the modulation scheme (e.g., the order of the modulation scheme, the coding rate of the modulation scheme, or both), such that a relatively high number of resource elements (e.g., in the transmission duration) and a relatively high order modulation scheme may correspond to a relatively high communication rate. Wireless communication resources may refer to a combination of RF spectrum resources, time resources, and spatial resources (e.g., spatial layers or beams), and the use of multiple spatial resources may increase the data rate or data integrity used for communication with UE 115.

[0092] The time interval for the network entity 105 or the UE 115 may be expressed as a multiple of a basic time unit, which may be, for example, a sampling period T s =1 / (Δf max ·N f ) seconds, where Δf max It can represent the supported subcarrier spacing, and N f The supported discrete Fourier transform (DFT) size may be indicated. Time intervals of communication resources may be organized according to radio frames, each having a specified duration (e.g., 10 milliseconds (ms)). Each radio frame may be identified by a system frame number (SFN) (e.g., in the range of 0 to 1023).

[0093] Each frame may include a plurality of consecutively numbered subframes or time slots, and each subframe or time slot may have the same duration. In some aspects, a frame may be divided (e.g., in the time domain) into subframes, and each subframe may be further divided into a certain 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 certain number of symbol periods (e.g., depending on the length of the cyclic prefix appended to the front of each symbol period). In some wireless communication systems 100, the time slot may be further divided into a plurality of mini-slots associated with one or more symbols. Excluding the cyclic prefix, each symbol period may be associated with one or more (e.g., N f The duration of a symbol period may depend on the subcarrier spacing or the operating frequency band.

[0094] A subframe, slot, mini-slot, or symbol may be the smallest scheduling unit (e.g., in the time domain) of the wireless communication system 100 and may be referred to as a Transmit Time Interval (TTI). In some aspects, the TTI duration (e.g., the number of symbol periods in a TTI) may be variable. Additionally or alternatively, the smallest scheduling unit of the wireless communication system 100 may be dynamically selected (e.g., in bursts of shortened TTIs (sTTIs)).

[0095] Physical channels may be multiplexed according to various techniques for communication using a carrier. For example, physical control channels and physical data channels may be multiplexed using one or more of time division multiplexing (TDM), frequency division multiplexing (FDM), or hybrid TDM-FDM techniques for signaling via a downlink carrier. A control region (e.g., a control resource set (CORESET)) of a physical control channel may be defined by a set of symbol periods and may extend across the system bandwidth of a carrier or a subset of that bandwidth. One or more control regions (e.g., CORESETs) may be configured for a set of UEs 115. For example, one or more of UEs 115 may monitor or search the control region for control information according to one or more search space sets, and each search space set may include one or more control channel candidates in one or more aggregation levels arranged in a cascaded manner. The aggregation level of a control channel candidate may refer to the amount 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 sets may include a common search space set configured for transmitting control information to multiple UEs 115 and a UE-specific search space set for transmitting control information to a specific UE 115 .

[0096] The network entity 105 may provide communication coverage via one or more cells (e.g., macro cells, small cells, hotspots, or other types of cells, or any combination thereof). The term "cell" may refer to a logical communication entity used to communicate with the network entity 105 (e.g., using a carrier) and may be associated with an identifier (e.g., a physical cell identifier (PCID), a virtual cell identifier (VCID), or other identifier) ​​used to distinguish between adjacent cells. In some aspects, a cell may also refer to a coverage area 110 or a portion of a coverage area 110 (e.g., a sector) on which a logical communication entity operates. Depending on various factors (such as the capabilities of the network entity 105), such cells may range from a smaller area (e.g., a structure, a subset of a structure) to a larger area. For example, a cell may be or may include a building, a subset of a building, or an external space between or overlapping coverage areas 110, etc.

[0097] A macro cell generally covers a relatively large geographic area (e.g., several kilometers in radius) and may allow unrestricted access to UEs 115 that have a service subscription with a network provider that supports the macro cell. Small cells may be associated with lower-power network entities 105 (e.g., lower-power base stations 140) than macro cells, and may operate using the same or different (e.g., licensed, unlicensed) frequency bands as the macro cells. Small cells may provide unrestricted access to UEs 115 that have a service subscription with the network provider, or may provide restricted access to UEs 115 associated with the small cell (e.g., UEs 115 in a closed subscriber group (CSG), UEs 115 associated with users in a home or office). A network entity 105 may support one or more cells and may also use one or more component carriers to support communications via the one or more cells.

[0098] In some aspects, a carrier may support multiple cells, and different cells may be configured according to different protocol types (e.g., MTC, narrowband IoT (NB-IoT), enhanced mobile broadband (eMBB)) that may provide access to different types of devices.

[0099] In some aspects, the network entities 105 (e.g., base stations 140, RUs 170) can be mobile and, therefore, provide communication coverage for mobile coverage areas 110. In some aspects, different coverage areas 110 associated with different technologies can overlap, but can be supported by the same network entity 105. In some other examples, overlapping coverage areas 110 associated with different technologies can be supported by different network entities 105. The wireless communication system 100 can include, for example, a heterogeneous network in which different types of network entities 105 provide coverage for various coverage areas 110 using the same or different radio access technologies.

[0100] Some UEs 115, such as MTC or IoT devices, may be low-cost or low-complexity devices and may provide automated communication between machines (e.g., via machine-to-machine (M2M) communication). M2M communication or MTC may refer to data communication technology that allows devices to communicate with each other or with a network entity 105 (e.g., base station 140) without human intervention. In some aspects, M2M communication or MTC may include communication from devices that integrate 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 a person interacting with the application. Some UEs 115 may be designed to collect information or implement automated behavior of machines or other equipment. Examples of applications for MTC devices include smart metering, inventory monitoring, water level monitoring, equipment monitoring, healthcare monitoring, wildlife monitoring, weather and geographic event monitoring, queue management and tracking, remote security sensing, physical access control, and transaction-based commercial charging.

[0101] Some UEs 115 may be configured to employ an operating mode that reduces power consumption, such as half-duplex communication (e.g., a mode that supports unidirectional communication via transmission or reception but does not transmit and receive concurrently). In some aspects, half-duplex communication may be performed at a reduced peak rate. Other power conservation techniques for the UE 115 include entering a power-saving deep sleep mode when not engaged in active communications, operating using limited bandwidth (e.g., according to narrowband communication), or a combination of these techniques. For example, some UEs 115 may be configured to operate using a narrowband protocol type that is associated with a defined portion or range (e.g., a set of subcarriers or resource blocks (RBs)) within a carrier, within a guard band of a carrier, or outside a carrier.

[0102] The wireless communication system 100 can be configured to support ultra-reliable communication or low-latency communication or various combinations thereof. For example, the wireless communication system 100 can be configured to support ultra-reliable low-latency communication (URLLC). The UE 115 can be designed to support ultra-reliable or low-latency or critical functions. Ultra-reliable communication can include private communication or group communication and can be supported by one or more services (such as push-to-talk, video or data). Support for ultra-reliable, low-latency functions can include prioritization of services, and such services can be used for public safety or general commercial applications. The terms ultra-reliable, low-latency and ultra-reliable low-latency can be used interchangeably in this article.

[0103] In some aspects, a UE 115 may be configured to support communication directly with other UEs 115 via a device-to-device (D2D) communication link 135 (e.g., according to a peer-to-peer (P2P), D2D, or sidelink protocol). In some aspects, one or more UEs 115 in a group performing D2D communication may be within a coverage area 110 of a network entity 105 (e.g., a base station 140, a RU 170), which may support aspects of such D2D communication as configured (e.g., scheduled) by the network entity 105. In some aspects, one or more UEs 115 in such a group may be outside of the coverage area 110 of the network entity 105 or may otherwise be unable or not configured to receive transmissions from the network entity 105. In some aspects, a group of UEs 115 communicating via D2D communication may support a one-to-many (1:M) system, where each UE 115 transmits to every other UE 115 in the group. In some aspects, network entity 105 may facilitate scheduling of resources for D2D communications. In some other examples, D2D communications may be performed between UEs 115 without involving network entity 105.

[0104] The core network 130 may provide user authentication, access authorization, tracking, Internet Protocol (IP) connectivity, and other access, routing, or mobility functions. The core network 130 may 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), an access and mobility management function (AMF)) for managing access and mobility and at least one user plane entity (e.g., a serving gateway (S-GW), a packet data network (PDN) gateway (P-GW), or a user plane function (UPF)) for routing packets or interconnecting to external networks. The control plane entity may manage non-access stratum (NAS) functions such as mobility, authentication, and bearer management for UEs 115 served by network entities 105 (e.g., base stations 140) associated with the core network 130. User IP packets may be transferred through the user plane entity, which may provide IP address allocation and other functions. The user plane entity may be connected to the IP services 150 of one or more network operators. IP services 150 may include access to the Internet, an intranet, an IP Multimedia Subsystem (IMS), or packet-switched streaming services.

[0105] The wireless communication system 100 can operate using one or more frequency bands that can range from 300 megahertz (MHz) to 300 gigahertz (GHz). Generally speaking, the region from 300 MHz to 3 GHz is referred to as the ultra-high frequency (UHF) region or decimeter band because the wavelengths range from about one decimeter to one meter in length. UHF waves can be blocked or redirected by buildings and environmental features (which can be referred to as clusters), but these waves can penetrate structures sufficiently for a macro cell to provide service to a UE 115 located indoors. Communication using UHF waves can be associated with smaller antennas and a shorter range (e.g., less than 100 kilometers) than communication using the smaller frequencies and longer wavelengths of the high frequency (HF) or very high frequency (VHF) portions of the spectrum below 300 MHz.

[0106] The wireless communication system 100 may utilize both licensed and unlicensed RF spectrum bands. For example, the wireless communication system 100 may utilize an unlicensed band (such as the 5 GHz Industrial, Scientific, and Medical (ISM) band) to employ License Assisted Access (LAA), LTE Unlicensed (LTE-U) radio access technology, or NR technology. When operating using an unlicensed RF spectrum band, devices such as the network entity 105 and the UE 115 may employ carrier sensing for conflict detection and avoidance. In some aspects, operations using the unlicensed band may be based on a carrier aggregation configuration (e.g., LAA) in conjunction with component carriers operating using a licensed band. Operations using the unlicensed spectrum may include downlink transmissions, uplink transmissions, P2P transmissions, or D2D transmissions, among others.

[0107] A network entity 105 (e.g., a base station 140, a RU 170) or a UE 115 may be equipped with multiple antennas that can be used to employ techniques such as transmit diversity, receive diversity, multiple-input, multiple-output (MIMO) communications, or beamforming. The antennas of the network entity 105 or UE 115 may be located within one or more antenna arrays or antenna panels, which may support MIMO operations 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 aspects, the antennas or antenna arrays associated with the network entity 105 may be located at different geographical locations. The network entity 105 may include an antenna array having a set of multiple rows and columns of antenna ports that the network entity 105 may use to support beamforming for communications with the UE 115. Similarly, the UE 115 may include one or more antenna arrays that may support various MIMO or beamforming operations. Additionally or alternatively, the antenna panels may support RF beamforming for signals transmitted via the antenna ports.

[0108] 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 device or a receiving device (e.g., a network entity 105, a UE 115) to shape or steer an antenna beam (e.g., a transmit beam, a receive beam) along a spatial path between the transmitting device and the receiving device. Beamforming can be achieved by combining signals communicated via antenna elements of an antenna array so that some signals propagating in a particular direction relative to the antenna array experience constructive interference, while other signals experience destructive interference. Adjustments to signals communicated via antenna elements can include the transmitting device or the receiving device applying an amplitude offset, a phase offset, or both to signals carried via antenna elements associated with the device. The adjustments associated with each of these antenna elements can be defined by a set of beamforming weights associated with a particular direction (e.g., relative to the antenna array of the transmitting device or the receiving device or relative to some other direction).

[0109] The wireless communication system 100 may be a packet-based network operating according to a layered protocol stack. In the user plane, communications at the bearer or PDCP layer may be IP-based. The RLC layer may perform packet segmentation and reassembly for communication via logical channels. The MAC layer may perform priority handling and multiplexing of logical channels into transport channels. The MAC layer may also support retransmission using error detection, error correction, or both to improve link efficiency. In the control plane, the RRC layer may provide for the establishment, configuration, and maintenance of RRC connections between the UE 115 and the network entity 105 or core network 130 for radio bearers supporting user plane data. The PHY layer may map transport channels to physical channels.

[0110] UE 115 and network entity 105 may support retransmission of data to increase the likelihood of successful data reception. Hybrid Automatic Repeat Request (HARQ) feedback is a technique for increasing the likelihood of correctly receiving data via a communication link (e.g., communication link 125, D2D communication link 135). HARQ may include a combination of error detection (e.g., using a cyclic redundancy check (CRC)), forward error correction (FEC), and retransmission (e.g., automatic repeat request (ARQ)). HARQ may improve throughput at the MAC layer under poor radio conditions (e.g., low signal-to-noise ratio conditions). In some aspects, a device may support same-slot HARQ feedback, in which case the device may provide HARQ feedback in a particular time slot for data received in a previous symbol in that time slot. In some other examples, the device may provide HARQ feedback in a subsequent time slot or based on some other time interval.

[0111] The wireless communication system 100 (e.g., an NR wireless communication system) can support RedCap or low-power wireless devices (e.g., metering devices, asset tracking devices, personal IoT or wearable devices, etc.) to improve system efficiency, reduce latency, and improve reliability, among other benefits. In some aspects, such wireless devices can support low-power sidelink communication and operation modes.

[0112] Sidelink communication may occur via a set of time resources and frequency resources defined by a resource pool. In the frequency domain, the sidelink resource pool may include a certain number of consecutive subchannels (e.g., numSubchannel), where the subchannel may include a certain number of consecutive physical resource blocks (PRBs) (e.g., subchannelsize), and where the number of consecutive subchannels and consecutive PRBs may be higher-layer parameters. In some aspects, the network entity 105 (e.g., a network node) may configure one or more sidelink resource pools to the UE 115 (e.g., a network node) via higher-layer signaling. The UE 115 may use the sidelink resource pool to send or receive a physical shared sidelink channel (PSSCH), where the sidelink resource pool may be associated with one of multiple sidelink resource allocation modes. For a first sidelink resource allocation mode (e.g., mode 1), the network entity 105 may dynamically indicate the sidelink resource pool (e.g., via downlink control information (DCI) format 3_0), or the network entity 105 may configure the sidelink resource pool. Additionally, the first sidelink resource allocation mode may support both type 1 (eg, configuration-based) and type 2 (eg, activation-based) sidelink resource configurations.

[0113] A second sidelink resource allocation mode (e.g., Mode 2) may be an autonomous mode in which the UE 115 may select a resource pool or resources for sidelink communication based on a sensing and reservation process. For example, the UE 115 may attempt to decode sidelink control information (SCI) received from multiple other UEs 115 during a sensing window. Each UE 115 may attempt to reserve future resources that may conflict with the resource selection window of interest of the receiving UE 115. Priority p of the packets of the interested UE 115 may be used to select the resource pool or resources for sidelink communication. i , the priority p of the packet for which another UE 115 reserves resources j 、For (p i ,p j) pair, and the RSPP measured by the interested UE 115 (based on the PSSCH or physical shared control channel (PSCCH) received from other UEs 115), the interested UE 115 can determine whether the candidate resource is considered available. In some cases, a BWP may include multiple receive and transmit resource pools, and a physical layer channel may be configured per resource pool.

[0114] In some cases, RedCap or power-saving UEs 115 may utilize resource pools differently than other wireless devices. For example, if a full-capability or full-power UE 115 reserves some resources in a portion of a resource pool that may be accessed (e.g., seen) by one or more RedCap UEs 115 (outside the resource pool), the RedCap UEs 115 may avoid considering the reservation when performing their own resource reservations. However, if a reservation made by a full-capability UE 115 is signaled in a certain portion of the resource pool, sensing and reservations for the RedCap UE 115 may remain unaffected. Alternatively, a reservation made by a RedCap UE 115 may be accessed by a full-capability UE 115 because the full-capability UE 115 supports a larger bandwidth than the RedCap UE 115.

[0115] In some aspects, UE 115 may transmit data packets in a given segmented resource pool using different broadcast types. For example, UE 115 may transmit packets in a unicast, multicast, or broadcast manner. For connectionless multicast and broadcast, an unknown set of UEs 115 may receive the transmitted packets. In other words, UE 115 may lack a PC5 link. Consequently, UE 115 may lack the ability to modify the segmented resource pool used for transmission or reception over time.

[0116] For a resource pool partitioned into multiple sub-bands, the network entity 105 can pre-configure a broadcast type for each of the multiple sub-bands. For example, the network entity 105 can pre-configure some sub-bands to implement multicast (e.g., connectionless multicast) or broadcast, or enable unicast or managed multicast. Additionally, the network entity 105 can pre-configure a single broadcast type or multiple broadcast types for a sub-band. For broadcast and multicast, the choice of which sub-band to use can depend on the application or service.

[0117] Additionally or alternatively, the network entity 105 may pre-configure an operating mode (e.g., full sensing, partial sensing, or random selection) for each sub-band in the resource pool. In this way, UEs 115 with different operating modes may be reused. For example, a full sensing UE 115 operating across the entire frequency band may select resources from sub-bands that may not be assigned to UEs 115 utilizing random selection, thereby minimizing the impact on UEs 115 utilizing random selection. In addition, a full sensing UE 115 may avoid conflicts with UEs 115 utilizing random selection. For example, for high-priority packets, a full sensing UE 115 may transmit in sub-bands where other UEs 115 can perform sufficient sensing.

[0118] Some sidelink UEs 115 may support CSI reporting, where if CSI reporting is enabled via the higher layer parameter sl-CSI-Acquisition and if the "CSI Request" field in the corresponding SCI formats 0-2 is set to 1, the UE 115 may transmit sidelink CSI-RS within a unicast PSSCH transmission. For CSI-RS transmission, higher layer signaling may also configure the number of ports (e.g., nrofPortsCSIRS-SL, which indicates the number of ports used for sidelink CSI-RS for one or two antennas), the first symbol (e.g., firstSymbolInTimeDomainCSIRS-SL, which indicates the first OFDM symbol in the PRB used for sidelink CSI-RS transmission), and the frequency domain allocation for sidelink CSI-RS transmission (e.g., frequDomainAllocationCSIRS-SL). In some cases, the UE 115 may support a CSI-RS density (e.g., resource element, port, resource block) of 1. Additionally, the CSI report may include a channel quality indicator (CQI) and a rank indicator (RI) associated with the CSI.

[0119] In some cases, the UE 115 may calculate the CSI parameters (if reported) based on dependencies between the CSI parameters. For example, the UE 115 may calculate the CQI based on the reported RI. In addition, CSI reporting may be periodic so that CSI reporting may be triggered based on the CSI-RS configuration. In some aspects of CSI reporting, the UE 115 may support wideband CQI reporting, where the UE 115 may report wideband CQI for the entire CSI reporting band, which may be limited to the PSSCH transmission band.

[0120] UE 115 may send a sidelink CSI report via a MAC-CE. The sidelink CSI report MAC-CE may be identified by a MAC subheader with a specific logical channel identifier (LCID). In some aspects, the priority of the sidelink CSI report MAC-CE may be fixed to 1. The MAC-CE may include an RI field, a CQI field, and one or more reserved bits (e.g., R). The RI field may indicate a derived value of the RI for the sidelink CSI report and may have a field length of one bit. The CQI field may indicate a derived value of the CQI for the sidelink CSI report and may have a field length of four bits. Each reserved bit may be set to zero.

[0121] A UE 115 that triggers a CSI report may not trigger another aperiodic CSI report for the same UE 115 before the last time slot of the expected reception of an ongoing aperiodic CSI report or the completion of the ongoing aperiodic CSI report. The CSI report may be associated with SCI format 2-A and have a "CSI request" field set to 1, wherein the last time slot of the expected reception of the ongoing aperiodic CSI report may be defined for the UE 115. To manage the sidelink CSI reporting process, the network entity 105 may send RRC signaling configuring CSI reporting parameters (e.g., sl-LatencyBound-CSI-Report), which the network entity 105 may maintain for each PC5-RRC connection (e.g., with a supported range of {3, ... 160} time slots).

[0122] The MAC entity may trigger or cancel a sidelink CSI report for each pair of source layer 2 identifier and destination layer 2 identifier corresponding to a PC5-RRC connection that may be established by upper layers. For example, if a sidelink CSI report has been triggered by an SCI (which has yet to be canceled), and if the UE 115 cannot meet the latency requirement of the sidelink CSI report in the sl-LatencyBound-CSI-Report parameter, the network entity 105 may cancel the triggered sidelink CSI report. Alternatively, if a sidelink CSI report has been triggered by an SCI (which has yet to be canceled), and if the MAC entity indicates allocation of sidelink resources for a new transmission, where the sidelink shared channel resources can accommodate a sidelink CSI report MAC-CE and its subheader due to logical channel prioritization, the MAC entity may instruct a multiplexing and assembly process to generate a sidelink CSI report MAC-CE and cancel the triggered sidelink CSI report. Alternatively, if the SCI has triggered a sidelink CSI report (which has yet to be cancelled), and if the network entity has configured the MAC entity with a first sidelink resource allocation mode (e.g., Mode 1), the MAC entity may trigger a scheduling request. In some aspects, if the first sidelink resource allocation mode is configured, the MAC entity may trigger a scheduling request if transmission of a pending sidelink CSI report with one or more sidelink grants cannot meet a latency requirement associated with the sidelink CSI report.

[0123] To improve resource efficiency for both the first and second sidelink resource allocation modes, network entity 105 may use wideband reference signals (WBSs) to implement enhanced CSI acquisition. For example, network entity 105 may reserve a set of symbols or resource elements per sidelink time slot, or an entire sidelink time slot, for WBSs on a per-resource-pool basis. In some cases, the resource pool configuration may allocate a certain number of symbols at the end of some sidelink time slots to TDM data and sidelink reference signals, or a certain number of resource elements in some sidelink time slots. Alternatively, the resource pool configuration may allocate a certain number of time slots entirely to sidelink reference signals. In some aspects, some time slots may be designated as unavailable for sidelink communications. For example, the sidelink reference signal configuration may be limited to sidelink BWPs that are not constrained by any resource pool restrictions provided to UE 115, or may be suitable for network-controlled CSI acquisition but may be challenging for UE-autonomous CSI acquisition. Alternatively, some time slots allocated entirely to sidelink reference signals may be associated with a resource pool, in which case PSFCH resources may be present in the time slots.

[0124] In some cases, the network entity 105 may provide multiple reference signal configurations for the resource pool. For example, the first UE 115 may reserve the first two symbols of the resource pool on a first bandwidth (e.g., W1). Other UEs 115 may not be able to reserve reference signal symbols based on the configuration on the same first bandwidth. In some aspects, once the network entity 105 provides the configuration for the resource pool, the sidelink UE 115 may rate match their transmissions and receptions based on the configured resource pool. In this way, the receiving UE 115 may assume that any received transmission is rate matched because this may be inefficient if the UE 115 using the same overlapping resources to transmit and receive the sidelink reference signal is not close. In some aspects, the sidelink reference signal transmission may be independent of the data transmission and may be periodic or aperiodic based on a request from the network entity 105 or the relay UE or the remote UE 115. For example, the remote UE 115 may send a sidelink reference signal to the master UE 115 , or the master UE or relay UE 115 may send a sidelink reference signal followed by a report from the remote UE 115 .

[0125] The wireless communication system 100 may support techniques for sidelink CSI reporting based on sub-resource pools. For example, the wireless communication system 100 may support lower layer (e.g., Layer 1 (L1), Layer 2 (L2), and Layer 3 (L3)) signaling, grants, and resource configuration for measuring and reporting CSI based on sub-resource pools. In addition, the wireless communication system 100 may support MAC-CE for CSI reporting based on sub-resource pools. In some aspects, a UE 115 may receive control information indicating a resource pool for sidelink communication between two UEs 115 (e.g., network nodes) and indicating a set of sub-resource pools of the resource pool for sidelink communication. One or more sub-resource pools may be non-overlapping and may each include one or more non-overlapping resources. Additionally, each sub-resource pool may correspond to one or more of a corresponding set of channel types, a corresponding set of channel conditions, and a corresponding set of operating parameters. The UE 115 may communicate (e.g., participate in sidelink communication) based on one or more of the sub-resource pools.

[0126] Figure 2An example of a wireless communication system 200 that supports CSI reporting based on sub-resource pools for sidelink communication in accordance with one or more aspects of the present disclosure is illustrated. In some aspects, the wireless communication system 200 may implement aspects of the wireless communication system 100, or may be implemented by aspects of the wireless communication system 100. For example, the wireless communication system 200 may include a UE 115-a, a UE 115-b, and a network entity 105-a, which may be examples of corresponding devices as described herein. The UE 115 and the network entity 105-a may also be referred to herein as network nodes. In some aspects, the network entity 105-a may enable the UE 115-a to communicate with (e.g., perform sidelink communication with) the UE 115-b based on one or more sub-resource pools of a resource pool.

[0127] The wireless communication system 200 may support communication between the UE 115 and the network entity 105-a. In some cases, the UE 115-a may communicate with the network entity 105-a via a communication link 205-a, which may be a reference link. Figure 1 205 -b . The embodiment of the present invention further illustrates an example of a sidelink communication link 125. For example, network entity 105-a may send a downlink transmission to UE 115-a via communication link 205-a. Additionally, UE 115-a and UE 115-b may communicate via communication link 205-b, which may be an example of a sidelink communication link.

[0128] To enable CSI reporting for UE 115-a that performs sidelink communication based on a sub-resource pool, network entity 105-a may send control information 210 (e.g., first control information) to UE 115-a, which may indicate a resource pool to be used for sidelink communication between UE 115-a (e.g., a first network node) and UE 115-b (e.g., a second network node). In some aspects, network entity 105-a may send control information 210 via an RRC message. A resource pool may include a collection of multiple resources, which may be divided among multiple sub-resource pools.

[0129] The network entity 105-a may send control information 215 (e.g., second control information) to the UE 115-a, which may indicate a set of multiple sub-resource pools of resources for sidelink communication. Each sub-resource pool may include one or more resources from the set of multiple resources corresponding to the resource pool. In addition, the one or more resources of each corresponding sub-resource pool may be non-overlapping with other sub-resource pools. In other words, the sub-resource pools and the resources included in each sub-resource pool may be non-overlapping, so that resources may not be shared between the sub-resource pools.

[0130] Each corresponding sub-resource pool may correspond to at least one of a corresponding set of channel types, a corresponding set of channel conditions, or a corresponding set of operating parameters. For example, a sub-resource pool may correspond to a PSSCH, a PSCCH, or a PSFCH. Additionally or alternatively, a sub-resource pool may correspond to a certain number of subchannels, a subchannel size, or a specific starting resource block. Additionally or alternatively, a sub-resource pool may correspond to a constant bit rate (CBR), an MCS, a sensing configuration, or a power control parameter.

[0131] In some aspects, the network entity 105-a may send the control information 215 via an RRC message. That is, the control information 215 may include an RRC configuration per sub-resource pool, or at least an incremental RRC configuration relative to the original resource pool configuration of each sub-resource pool. That is, the control information 215 may indicate a set of multiple sub-resource pools and one or more differences between the resource pools. In addition, the control information 215 may indicate a respective size of each sub-resource pool (e.g., the number of resources included in each sub-resource pool), which may be based on the associated UE capabilities (e.g., whether the UE 115 is a RedCap UE). The respective sizes of each sub-resource pool may be the same or different. In some aspects, the UE 115-a may activate or deactivate one or more sub-resource pools from the multiple sub-resource pools. That is, in addition to the network entity 105-a sending the control information 215, the UE 115-a may also indicate the set of multiple sub-resource pools (e.g., the information included in the control information 215) to the UE 115-b and any other UEs 115 with which the UE 115-a is RRC connected.

[0132] In some cases, there may be a common sub-resource pool similar to a primary resource pool or a primary component carrier that UE 115-a may use to receive all indications of activation, deactivation, or reactivation of sub-resource pools within a resource pool. For example, UE 115-a may send information indicating a change in the corresponding activation state (e.g., activation, deactivation, reactivation) of at least one or more resources of each sub-resource pool in a common resource pool that is common to a set of network nodes including at least UE 115-a and UE 115-b. In some aspects, the common resource pool may be a primary resource pool associated with a primary component carrier, a primary sub-resource pool within a primary resource pool associated with a primary component carrier, or a secondary resource pool associated with a secondary component carrier.

[0133] The process of activating, deactivating, or reactivating one or more sub-resource pools may be associated with an ACK or NACK message so that any UE 115 wirelessly connected to UE 115-a may be aware of the activation status. Changes in the corresponding activation status of one or more sub-resource pools may be applied based on corresponding acknowledgement (ACK) information (e.g., ACK / NACK messages) from one or more other network nodes (e.g., network entity 105-a) other than UE 115-a or UE 115-b. For example, if a sub-resource pool is activated or reactivated, the network node may send an ACK message, and if a sub-resource pool is deactivated, the network node may send a NACK message. In this way, information indicating a change in the corresponding activation status (e.g., ACK / NACK signaling) may indicate the corresponding change in activation status on a per-sub-resource pool basis. UE 115-a and UE 115-b may communicate based on the activated sub-resource pool. In some cases, a deactivation request (e.g., a request to deactivate one or more sub-resource pools) may be sent via lower layer signaling (e.g., L1, L2, or L3 signaling) per sub-resource pool. In some aspects, a network entity 105-a or a UE 115-b (e.g., a master UE) may activate, reactivate, or deactivate a single sub-resource pool using L1, L2, or L3 signaling. That is, the UE 115-a may receive information indicating a change in the activation state of at least one or more resources of each sub-resource pool.

[0134] In some examples, UE 115-a may receive control information for scheduling transmissions in one or more of the sub-resource pools. For example, UE 115-a may receive a DCI from network entity 105-a or an SCI (e.g., SCI 1 or SCI 2) from UE 115-b or another UE 115, which may include a resource grant that schedules one or more transmissions in one or more of the sub-resource pools. The resource grant may be a dynamic grant that schedules transmissions based on the activation state of one or more sub-resource pools. Alternatively, the resource grant may be a configuration grant that pre-allocates resources and sub-resource pools for uplink or sidelink transmissions by UE 115-a. In some aspects, RRC signaling or DCI (e.g., type 1 or 2) may activate the same configuration grant across one or more sub-resource pools. For situations where UE 115-a receives a resource grant via an SCI, multiple transmissions may be scheduled via a single SCI, or each transmission may be scheduled via its own respective SCI. In this manner, UE 115-a may receive a respective SCI corresponding to each respective one of the scheduled one or more transmissions.

[0135] In some cases, bandwidth aggregation across sub-resource pools can be enabled, such that a network node can schedule a single PSSCH across sub-resource pools (e.g., in a contiguous or discontiguous allocation). If discontinuous repetition is enabled, different redundancy versions (RVs) or the same RV can be used across sub-resource pool allocations. In this way, one or more transmissions scheduled in one or more sub-resource pools can include sidelink channel (e.g., PSSCH) transmissions scheduled across the sub-resource pools, where each sub-resource pool in the sub-resource pools can be associated with an RV for the sidelink channel transmission.

[0136] In some wireless communication systems, the network entity 105-a may configure a sidelink resource grant (e.g., a dynamic grant, a configuration grant) based on a DCI and a radio network temporary identifier (RNTI). For example, the network entity 105-a may configure a sidelink grant by scrambling a DCI (e.g., DCI 3_0) with a scheduling RNTI of a sidelink configuration, which may indicate a resource pool index. In the case where a resource pool is divided into multiple sub-resource pools as described herein, the network entity 105-a may update the DCI to indicate resource grants on a per-sub-resource pool basis. For example, in the DCI, the network entity 105-a may assign different grants or configuration grants per sub-resource pool. In addition, the network entity 105-a may indicate a corresponding time domain resource allocation (TDRA) or a corresponding frequency domain resource allocation (FDRA) for each sub-resource pool. In this way, UE 115-a may receive a resource grant (e.g., a configuration grant, a dynamic grant) in a DCI that schedules one or more transmissions in one or more sub-resource pools in the sub-resource pools, wherein the DCI may include, for each of the one or more scheduled transmissions, a corresponding sub-resource pool indication indicating one or more TDRAs or one or more FDRAs to be used for the corresponding transmission and at least one sub-resource pool in the sub-resource pools.

[0137] In some aspects, the network entity 105-a may activate one or more sub-resource pools per UE 115 at a given time. The network entity 105-a may indicate the one or more activated sub-resource pools via a DCI, which may include a resource pool index and a sub-resource pool index. That is, the UE 115-a may receive a DCI configured to activate one or more resources of each sub-resource pool such that the number of activated resources of each sub-resource pool is less than a threshold amount, wherein the DCI indicates a resource pool index corresponding to the resource pool and one or more sub-resource pool indices corresponding to the activated resources of each sub-resource pool.

[0138] In some cases, the techniques described herein may allow for an offset between transmissions of cross-configuration grants. That is, if a configuration grant is activated on a partitioned resource pool (e.g., a resource pool partitioned into multiple sub-resource pools) in which multiple configuration grant transmissions have different TDRAs, the network entity 105-a may indicate an offset across the configuration grants so that they are non-overlapping in time. The UE 115-a may receive control information (e.g., DCI) that schedules at least two different sets of configuration grant transmissions across the multiple sub-resource pools, where the at least two different sets of configuration grant timings may be associated with different TDRAs to prevent time domain overlap between individual configuration grant transmissions in the different sets of configuration grant transmissions. This may reduce or avoid power amplifier phase changes due to misaligned transmissions and improve communication reliability.

[0139] A full-capability UE 115 may avoid using a portion (e.g., a sub-resource pool) of a resource pool allocated to a low-power or low-bandwidth (e.g., RedCap) network node to avoid interfering with the QoS, priority, performance, or transmission parameters (e.g., power, precoding and beamforming, MCS, etc.) of the low-power or low-bandwidth device. Additionally, avoiding the use of the sub-resource pool may reduce interference generated by the full-capability UE 115. In this manner, a UE 115-a may communicate with a UE 115-b in a first subset of the plurality of sub-resource pools that is different from a second subset of the plurality of resource pools that is allocated for use by network nodes having lower power or lower bandwidth relative to the UE 115-a.

[0140] UE 115-a may communicate with UE 115-b based on one or more sub-resource pools in the set of multiple sub-resource pools indicated in control information 215. For example, UE 115-a may use one or more sub-resource pools to participate in sidelink communications with UE 115-b via communication link 205-b.

[0141] Figure 3 An example of a resource pool 300 supporting CSI reporting based on a sub-resource pool for sidelink communication according to one or more aspects of the present disclosure is illustrated. In some aspects, the resource pool 300 may implement aspects of the wireless communication systems 100 and 200 or may be implemented by aspects of the wireless communication systems 100 and 200. For example, the resource pool 300 may be divided into sub-resource pools, wherein the UE 115 may use the sub-resource pools for communication (e.g., sidelink communication).

[0142] Resource pool 300 may have a bandwidth 305 that may be used by full-capability (e.g., normal) sidelink UEs 115. Alternatively, resource pool 300 may include a set of multiple sub-resource pools 310, each with a bandwidth 315 that may be used by RedCap sidelink UEs 115. In this manner, some UEs 115 may communicate using resource pool 300, and some other UEs 115 may communicate using one or more sub-resource pools 310. For example, a UE 115 may receive an indication (e.g., via a DCI or SCI) of a reservation 320-a (e.g., a resource grant) for resource pool 300, and a different UE 115 may see a reservation 320-b for a sub-resource pool 310 that, like reservation 320-a, is signaled outside of bandwidth 315.

[0143] In some aspects, reservation 320 may be used to schedule transmissions of data 325 in resource pool 300 or one or more sub-resource pools 310. Transmissions across sub-resource pools 310 may be aligned such that phase coherence is maintained across the transmissions. For example, for sidelink communication between UEs 115, UE 115 may transmit data 325-a (e.g., a sidelink transmission) across at least one or more resources of multiple sub-resource pools 310. Alternatively, network entity 105 may implement an offset between transmissions, for example, using TDM, to maintain phase coherence. That is, transmissions of data 325-a and data 325-b across sub-resource pools 310 (and the corresponding resources carrying the transmissions) may be aligned to facilitate coherent transmission of sidelink communication, or may be offset from one another (e.g., using TDM) to avoid overlap in time.

[0144] Alternatively, resource pool 300 may allow repeated transmission of data 325 or repeated transmission of transport blocks across sub-resource pools 310 to improve signaling reliability. For example, if the DCI field includes an "all sub-resource pools" indication, UE 115 may transmit some data 325 using each sub-resource pool 310 in resource pool 300 to enhance reliability. In this manner, UE 115 may transmit one or more repetitions of data 325 (e.g., data 325-a and data 325-b) or one or more repetitions of a transport block via different sub-resource pools 310. In some aspects, UE 115 may receive DCI 330 from network entity 105 indicating that data 325 is to be transmitted based on one or more sub-resource pools 310.

[0145] Figure 4An example of a sub-resource pool configuration 400 for supporting CSI reporting based on a sub-resource pool for sidelink communication in accordance with one or more aspects of the present disclosure is illustrated. In some aspects, the sub-resource pool configuration 400 may implement or be implemented by aspects of the wireless communication systems 100 and 200. For example, the sub-resource pool configuration 400 may enable a UE 115 (e.g., a low-power or low-bandwidth UE) to communicate (e.g., for sidelink communication) using one or more sub-resource pools 405 of a resource pool.

[0146] In a wireless communication system, a UE 115 (e.g., a sidelink UE) may transmit a reference signal and perform CSI reporting based on one or more sub-resource pools 405 in which the UE 115 is communicating. In some aspects, the UE 115 may transmit the sidelink reference signal within a PSSCH allocation and transmit the CSI report within a MAC-CE. For example, the UE 115 may use a wideband sidelink reference signal that spans the entire resource pool, where dedicated resources with a specific periodicity may be used by all UEs 115 and transmitted from the master UE 115. The network entity 105 may configure such reference signal transmission in RRC signaling (e.g., information element sl-LatencyBound-CSI-Report, which may be maintained for each PC5-RRC connection and may have a supported range of {3, ..., 160} time slots).

[0147] As described herein, resources of a resource pool may be divided among multiple sub-resource pools 405 to facilitate sidelink communications between low-power or low-bandwidth (e.g., RedCap) UEs 115. In some aspects of CSI reporting, the UE 115 may use one or more frequency hopping patterns to probe the sub-resource pools 405. For example, a sidelink reference signal may be based on a sub-resource pool such that one or more sub-resource pools 405 may be probed in a single time slot or across multiple time slots. That is, the UE 115 may transmit one or more sidelink reference signals in multiple sub-resource pools 405 based on one or more frequency hopping patterns, wherein the sub-resource pools 405 are probed in a single time slot or across multiple time slots according to the one or more frequency hopping patterns.

[0148] In some aspects, the UE 115 may receive first control information indicating a resource pool (e.g., as described herein with reference to Figure 1 The control information 210 described herein) and second control information indicating a plurality of sub-resource pools 405 of the resource pool (eg, as described herein with reference to Figure 1215). Additionally, the second control information may indicate one or more frequency hopping patterns to be used to probe one or more of the sub-resource pools. In some aspects, the first control information may indicate multiple frequency hopping patterns, each configured to probe multiple corresponding sub-resource pools 405. For example, one frequency hopping pattern may be used across all sub-resource pools 405 (including sub-resource pool 405-a, sub-resource pool 405-b, sub-resource pool 405-c, and sub-resource pool 405-d).

[0149] Alternatively, different hopping patterns may be used for different sub-resource pools. That is, each hopping pattern indicated in the second control information may be associated with a single corresponding sub-resource pool 405. In some aspects, the network entity 105-a may configure the hopping pattern as part of the resource pool configuration (e.g., via the first control information) or the sub-resource pool configuration (e.g., via the second control information). Two or more UEs 115 may select a particular hopping pattern to use via RRC signaling or MAC-CE based on a source identifier, a destination identifier, or any other identifier agreed upon by (or indicated to) the UE 115 (e.g., a scrambling identifier). That is, a given hopping pattern may be a function of a source identifier, a destination or group-common identifier, or another identifier indicated by the network entity 105, a control unit, or between UEs 115.

[0150] In some cases, each sub-resource pool 405 may include some dedicated resources reserved for sounding. For example, to sound a sub-resource pool 405, the master UE 115 may send an indication of a frequency hopping pattern to be used for sounding on one or more dedicated resources of the sub-resource pool 405. Alternatively, a UE 115 that may reserve a resource pool may also use one or more frequency hopping patterns to sound each sub-resource pool in the sub-resource pool 405 of the resource pool.

[0151] exist Figure 4 In the example of FIG, the second control information may indicate sub-resource pool 405-a, sub-resource pool 405-b, sub-resource pool 405-c, and sub-resource pool 405-d, each of which may include one or more corresponding resources of the resource pool. In the case where a frequency hopping pattern is used to sound each sub-resource pool 405, both sub-resource pool 405-a and sub-resource pool 405-b may be sounded in the same time slot, with sub-resource pool 405-a using sounding reference signal 410-a and sub-resource pool 405-b using sounding reference signal 410-c. In other words, the frequency hopping pattern may indicate that sub-resource pool 405-a and sub-resource pool 405-b will be sounded in the same time slot using the same sounding reference signal 410 at the same time.

[0152] The network entity 105 may configure a periodic sidelink reference signal per sub-resource pool 405, and the sidelink reference signals may have the same or different configurations including parameters such as periodicity, number of ports, and power offset relative to a control channel or data channel, among other parameters. In such cases, the UE 115 may receive third control information including a set of parameters for sidelink reference signal transmission on a per-sub-resource pool basis.

[0153] Additionally or alternatively, network entity 105-a may define frequency gaps between sub-resource pools 405 to reduce interference for low-power or low-bandwidth UEs 115 communicating using sub-resource pools 405. For example, instead of sounding sub-resource pool 405-c and sub-resource pool 405-d in the same time slot and using the same sounding reference signal 410, network entity 105 may configure the frequency gaps such that sub-resource pool 405-d is sounded in a later time slot than sub-resource pool 405-c, with the time slots separated by the frequency gap. The frequency gaps may be based on the capabilities of UEs 115 using sub-resource pools 405 or the capabilities of victim UEs 115 (e.g., UEs 115 experiencing interference) and may have a periodicity (e.g., 4 time slots, 8 time slots). In some aspects, second control information from network entity 105 may indicate a frequency gap between sub-resource pools 405 that is based on the capabilities of UEs 115.

[0154] In some cases, UE 115 may receive a reservation request that may indicate a frequency hopping pattern so that master UE 115 can determine each other's frequency hopping patterns, which may allow transmissions from UE 115 to be multiplexed. In some aspects, UE 115 may communicate a reservation request that indicates one or more frequency hopping patterns to be applied to sidelink reference signals transmitted or received in sub-resource pool 405. For example, two UEs 115 may be enabled to communicate using sub-resource pool 405-c and sub-resource pool 405-d. The first UE 115 may use a first frequency hopping pattern that indicates: using sounding reference signal 410-b to sound sub-resource pool 405-c in a first time slot, and using sounding reference signal 415-a to sound sub-resource pool 405-d in a second time slot following the first time slot. Second UE 115 may determine that first UE 115 is using the first frequency hopping pattern and, therefore, may use a second frequency hopping pattern that avoids conflicts or other interference with the operation of first UE 115. For example, the second frequency hopping pattern may indicate that sub-resource pool 405-d is first sounded using sounding reference signal 415-b in a first time slot and that sub-resource pool 405-d is sounded using sounding reference signal 410-c in a second time slot following the first time slot. Thus, UE 115 may use sounding reference signal 410 and sounding reference signal 415 to sound different sub-resource pools 405 at a given time in a given time slot.

[0155] The sub-resource pool partitioning enables multiplexing of several master UEs 115 together, even if the UEs 115 select the same resources but use different frequency hopping patterns. The UEs 115 can multiplex the transmission of one or more sidelink reference signals with additional sidelink reference signals reserved for transmission over the sub-resource pool 405, wherein the one or more sidelink reference signals are multiplexed with the additional sidelink reference signals by applying one or more frequency hopping patterns associated with the sub-resource pool 405.

[0156] Figure 5 An example of a MAC-CE 500 and a MAC-CE 501 supporting CSI reporting based on a sub-resource pool for sidelink communications according to one or more aspects of the present disclosure is illustrated. In some aspects, the MAC-CE 500 and the MAC-CE 501 may implement aspects of the wireless communication systems 100 and 200, or may be implemented by aspects of the wireless communication systems 100 and 200. For example, the UE 115 may use the MAC-CE 500 or the MAC-CE 501 to send a sidelink CSI report, where the MAC-CE 500 and the MAC-CE 501 may be configured based on one or more sub-resource pools of a resource pool.

[0157] In some cases, the network entity 105 may indicate (e.g., via RRC signaling) a reporting configuration for the UE 115 (e.g., a sidelink UE) to send CSI reports. For example, the network entity 105 may configure the information element sl-LatencyBound-CSI-Report differently per sub-resource pool and based on the number of sub-channels per sub-resource pool. The network entity 105 may indicate such a configuration during an RRC connection with the UE 115 or dynamically (e.g., using L1, L2, or L3 signaling). Alternatively, the network entity 105 may indicate a single sl-LatencyBound-CSI-Report for a resource pool (e.g., a partitioned resource pool) and then send incremental RRC configurations for each sub-resource pool of the resource pool. In this manner, UE 115 may receive control information (e.g., RRC signaling, L1, L2, or L3 signaling) that includes a set of parameters related to one or more CSI reports to be sent, wherein the values ​​of the set of parameters are based on the number of subchannels in a corresponding sub-resource pool in a plurality of sub-resource pools.

[0158] UE 115 may send a CSI report via MAC-CE 500, which may include 8 bits per octet (e.g., Oct 1). MAC-CE 500 may include one bit indicating RI 505, four bits indicating CQI 510, and three reserved bits 515 (e.g., R), including reserved bit 515-a, reserved bit 515-b, and reserved bit 515-c. Using MAC-CE 500, UE 115 may report CSI for one sub-resource pool at a time, using reserved bit 515 to indicate which sub-resource pool the CSI is being reported for. In this manner, given that MAC-CE 500 includes three reserved bits 515, the maximum number of sub-resource pools of a resource pool may be eight. In this manner, UE 115 may transmit a MAC-CE 500 indicating CSI for a corresponding sub-resource pool in a set of multiple sub-resource pools, the MAC-CE 500 including a codepoint indicating that the CSI is related to a particular sub-resource pool.

[0159] The code point may be included in a reserved bit field (e.g., reserved bit 515) of the MAC-CE 500. That is, the reserved bit 515 may be temporarily used to indicate the sub-resource pool associated with the reported CSI. The UE 115 may define code points (e.g., 000, 001, 010, 011, 100, 101, 110, 111) to indicate the CSI of the resource pool, which may include an average of the CSI across all sub-resource pools used in the report. For example, the UE 115 may use the first octet (e.g., Oct 1) of the MAC-CE 500 to report the CSI for the first sub-resource pool of the resource pool. The UE 115 may indicate the first sub-resource pool in the reserved bit 515, where the reserved bit 515-a may have a value of 0, the reserved bit 515-b may have a value of 0, and the reserved bit 515-c may have a value of 1, such that the bit combination 001 indicates the first sub-resource pool.

[0160] In some aspects, the UE 115 may use multiple entries (e.g., octets) in the MAC-CE 500 to indicate the sub-resource pools and their corresponding RIs 505 and CQIs 510. For example, for two sub-resource pools, the UE 115 may include two corresponding RIs 505, two corresponding CQIs 510, and two corresponding sets of reserved bits 515 to indicate the corresponding CSI, as described herein. That is, the UE 115 may send multiple sets of CSI for the corresponding sub-resource pools via the MAC-CE 500, each of the CSI including a corresponding RI 505, a corresponding CQI 510, or both.

[0161] Additionally, the UE 115 may use MAC-CE 501 to concurrently send multiple CSI reports, where the number of CSI reports (e.g., X) may be based on the capabilities of the UE 115. The UE 115 may use L1, L2, or L3 signaling to indicate its capabilities (e.g., full capability or RedCap, which may include lower power and lower bandwidth). In addition, the number of CSI reports may be a function of the size of each sub-resource pool (e.g., the number of subchannels or resources). The UE 115 may utilize three reserved bits in each octet of the MAC-CE 501 to send multiple reports. Thus, the UE 115 may send up to eight CSI reports for eight corresponding sub-resource pools of a resource pool (e.g., X=8), with three reserved bits mapped to a given sub-resource pool.

[0162] In a non-limiting example, the MAC-CE 501 may include four CSI reports 520 (e.g., four octets), each CSI report corresponding to a sub-resource pool. Each CSI report 520 may include the RI and CQI corresponding to the sub-resource pool. In addition, each CSI report 520 may include three reserved bits, where the value of the reserved bits may indicate to which sub-resource pool the CSI corresponds. For example, a CSI report 520-a may include three reserved bits with a value of 000, which may indicate a first sub-resource pool. Additionally, a CSI report 520-b may include three reserved bits with a value of 001 indicating a second sub-resource pool, a CSI report 520-c may include three reserved bits with a value of 010 indicating a third sub-resource pool, and a CSI report 520-d may include three reserved bits with a value of 011 indicating a fourth sub-resource pool. The MAC-CE 501 may include up to eight CSI reports 520.

[0163] Figure 6 An example of a MAC-CE 600 supporting CSI reporting based on a sub-resource pool for sidelink communications according to one or more aspects of the present disclosure is illustrated. In some aspects, the MAC-CE 600 may implement aspects of the wireless communication systems 100 and 200, or may be implemented by aspects of the wireless communication systems 100 and 200. For example, the UE 115 may use the MAC-CE 600 to send a sidelink CSI report, where the MAC-CE 600 may be configured based on one or more sub-resource pools of a resource pool.

[0164] As referenced in this article Figure 5 As described, UE 115 may send a CSI report indicating CSI and RI, CQI, or both for a sub-resource pool. In some aspects, UE 115 may send the CSI report via a MAC-CE, such as MAC-CE 600. UE 115 may send multiple CSI reports concurrently, where the number of CSI reports that UE 115 may send concurrently (e.g., X) may be based on the capabilities of UE 115 and the number of subchannels or resources in each of the sub-resource pools for which CSI is being reported. UE 115 may utilize three reserved bits in each octet of MAC-CE 600 to send multiple reports. Thus, UE 115 may send up to eight CSI reports for eight corresponding sub-resource pools of a resource pool (e.g., X=8), where three reserved bits are mapped to a given sub-resource pool.

[0165] In some aspects, the UE 115 may send up to eight CSI reports (e.g., CSI reports for eight sub-resource pools) via the MAC-CE 600 after adding one byte as a header 605 to the MAC-CE 600 to indicate for which sub-resource pools the CSI is being reported. The header 605 may include one or more bits 610 indicating whether the MAC-CE 600 includes CSI for a particular sub-resource pool. For each bit 610, "subRP x" may represent a binary value indicating whether the MAC-CE 600 includes CSI for that sub-resource pool (subRP) x. For example, bit 610-a indicates subRP 0, bit 610-b indicates subRP 1, bit 610-c indicates subRP 2, and bit 610-d indicates subRP 3. Based on the bits 610 in the header 605, the MAC-CE 600 may include CSI for subRP 0, subRP 1, subRP 2, and subRP 3. As described herein, a resource pool may include up to 8 sub-resource pools. If a resource pool includes fewer than 8 sub-resource pools, such as in Figure 6 In the example of , the remaining bits of the header 605 may be reserved bits 615. Therefore, since the MAC-CE 600 includes CSI for four sub-resource pools, the header may include four reserved bits 615 (e.g., reserved bit 615-a, reserved bit 615-b, reserved bit 615-c, and reserved bit 615-d).

[0166] As referenced in this article Figure 5 As depicted, the MAC-CE 600 may include four CSI reports 620 (e.g., in four octets), each CSI report 620 corresponding to one of the sub-resource pools indicated in bits 610 of the header 605. For example, the MAC-CE 600 may include a CSI report 620-a corresponding to subRP 0, a CSI report 620-b corresponding to subRP 1, a CSI report 620-c corresponding to subRP 2, and a CSI report 620-d corresponding to subRP 3. Each CSI report 620 may include one bit for reporting RI, four bits for reporting CQI, or both, and a certain number of reserved bits R (e.g., three reserved bits).

[0167] Figure 7An example of a process flow 700 for supporting CSI reporting based on a sub-resource pool for sidelink communication according to one or more aspects of the present disclosure is illustrated. The process flow 700 may implement aspects of the wireless communication systems 100 and 200, or may be implemented by aspects of the wireless communication systems 100 and 200. For example, the process flow 700 may illustrate operations between a UE 115-c, a UE 115-d, and a network entity 105-b (which may be examples of corresponding devices described herein). In the following description of the process flow 700, the operations between the UE 115-c, the UE 115-d, and the network entity 105-b may be sent in an order different from the example order shown, or the operations performed by the UE 115-c, the UE 115-d, and the network entity 105-b may be performed in a different order or at a different time. Some operations may also be omitted from the process flow 700, and other operations may be added to the process flow 700.

[0168] At 705, UE 115-c (e.g., a first network node) may receive first control information from network entity 105-b, the first control information indicating a resource pool for sidelink communication between UE 115-c and UE 115-d (e.g., a second network node), wherein the resource pool includes a set of multiple resources. In some cases, the first control information may include RRC signaling.

[0169] At 710, UE 115-c may receive second control information from network entity 105-b, the second control information indicating a set of multiple sub-resource pools for sidelink communication between UE 115-c and UE 115-d. Each sub-resource pool in the set of multiple sub-resource pools may include corresponding one or more resources from the set of multiple resources corresponding to the resource pool, wherein the corresponding one or more resources of each corresponding sub-resource pool in the set of multiple sub-resource pools are non-overlapping with other sub-resource pools in the set of multiple sub-resource pools. In addition, each corresponding sub-resource pool may correspond to at least one of a corresponding set of channel types, a corresponding set of channel conditions, or a corresponding set of operating parameters. That is, the multiple sub-resource pools of the resource pool may be non-overlapping with each other, and the resources within each sub-resource pool may be non-overlapping.

[0170] At 715 and 720, UE 115-c may receive a resource grant in a DCI or SCI, respectively, that schedules one or more transmissions in one or more sub-resource pools from a set of a plurality of sub-resource pools, where the resource pools may be dynamic grants or configured grants. In some aspects, the DCI may activate, deactivate, or reactivate one or more of the sub-resource pools such that UE 115-c may use the particular sub-resource pool for sidelink communication with UE 115-d.

[0171] At 725, UE 115-c may multiplex transmission of one or more sidelink reference signals with additional sidelink reference signals reserved for transmission over the set of the plurality of sub-resource pools, wherein the one or more sidelink reference signals are multiplexed with the additional sidelink reference signals by applying one or more frequency hopping patterns associated with the set of the plurality of sub-resource pools. In some aspects, the second control information may indicate one or more frequency hopping patterns that UE 115-c may use to sound one or more of the sub-resource pools. Multiplexing may be achieved if UE 115-c and UE 115-d can determine each other's frequency hopping patterns.

[0172] At 730, UE 115-c may communicate with UE 115-d based on one or more sub-resource pools in the set of multiple sub-resource pools. For example, UE 115-c and UE 115-d may engage in sidelink communication.

[0173] At 735, UE 115-c may send a MAC-CE to network entity 105-b, the MAC-CE indicating CSI for a corresponding sub-resource pool in the set of multiple sub-resource pools, the MAC-CE including a codepoint indicating that the CSI is associated with a particular sub-resource pool in the set of multiple sub-resource pools. In some aspects, the codepoint may be included in a reserved bit field of the MAC-CE. Additionally, the MAC-CE may include an RI, a CQI, or both corresponding to the CSI for the sub-resource pool.

[0174] Figure 8 A block diagram 800 illustrates a device 805 that supports CSI reporting based on a sub-resource pool for sidelink communication according to one or more aspects of the present disclosure. The device 805 can be an example of aspects of a network node as described herein. The device 805 may include a receiver 810, a transmitter 815, and a communication manager 820. The device 805 may also include a processor. Each of these components may communicate with each other (e.g., via one or more buses).

[0175] The receiver 810 may provide means for receiving information (such as packets, user data, control information, or any combination thereof) associated with various information channels (e.g., control channels related to CSI reporting based on sub-resource pools for sidelink communication, data channels, information channels). The information may be passed to other components of the device 805. The receiver 810 may utilize a single antenna or a collection of multiple antennas.

[0176] The transmitter 815 may provide means for transmitting signals generated by other components of the device 805. For example, the transmitter 815 may transmit information associated with various information channels (e.g., a control channel related to CSI reporting based on a sub-resource pool for sidelink communication, a data channel, an information channel), such as packets, user data, control information, or any combination thereof. In some aspects, the transmitter 815 may be co-located with the receiver 810 in a transceiver module. The transmitter 815 may utilize a single antenna or a collection of multiple antennas.

[0177] The communication manager 820, the receiver 810, the transmitter 815, or various combinations thereof, or various components thereof may be examples of means for performing various aspects of CSI reporting based on a sub-resource pool for sidelink communication as described herein. For example, the communication manager 820, the receiver 810, the transmitter 815, or various combinations or components thereof may support methods for performing one or more of the functions described herein.

[0178] In some aspects, the communication manager 820, the receiver 810, the transmitter 815, or various combinations or components thereof may be implemented in hardware (e.g., in a communication management circuit). The hardware may include a processor, a DSP, a CPU, an ASIC, an FPGA or other programmable logic device, a microcontroller, discrete gate or transistor logic, discrete hardware components, or any combination thereof configured as or otherwise supporting means for performing the functions described in this disclosure. In some aspects, a processor and a memory coupled to the processor may be configured (e.g., by the processor executing instructions stored in the memory) to perform one or more of the functions described herein.

[0179] Additionally or alternatively, in some aspects, the communication manager 820, receiver 810, transmitter 815, or various combinations or components thereof may be implemented in code executed by a processor (e.g., as communication management software or firmware). If implemented in code executed by a processor, the functionality of the communication manager 820, receiver 810, transmitter 815, or various combinations or components thereof may be performed by a general purpose processor (e.g., configured as or otherwise supporting means for performing the functions described herein), a DSP, a CPU, an ASIC, an FPGA, a microcontroller, or any combination of these or other programmable logic devices.

[0180] In some aspects, the communication manager 820 can be configured to perform various operations (e.g., receive, obtain, monitor, output, transmit) using or otherwise cooperating with the receiver 810, the transmitter 815, or both. For example, the communication manager 820 can receive information from the receiver 810, transmit information to the transmitter 815, or be integrated with the receiver 810, the transmitter 815, or both to obtain information, output information, or perform various other operations as described herein.

[0181] According to an example disclosed herein, a communication manager 820 may support wireless communication at a first network node. For example, the communication manager 820 may be configured as, or otherwise support, means for receiving first control information indicating a resource pool for sidelink communication between the method and a second network node, wherein the resource pool includes a set of multiple resources. The communication manager 820 may be configured as, or otherwise support, means for receiving second control information indicating a set of multiple sub-resource pools for sidelink communication between the first network node and the second network node, wherein each sub-resource pool in the set of multiple sub-resource pools includes one or more resources from a set of multiple resources corresponding to the resource pool, wherein the one or more resources of each respective sub-resource pool in the set of multiple sub-resource pools are non-overlapping with other sub-resource pools in the set of multiple sub-resource pools, and wherein each respective sub-resource pool in the set of multiple sub-resource pools corresponds to at least one of: a corresponding set of channel types, a corresponding set of channel conditions, or a corresponding set of operating parameters. The communication manager 820 may be configured as or otherwise support means for communicating with the second network node based on one or more sub-resource pools in the set of a plurality of sub-resource pools.

[0182] Additionally or alternatively, according to examples as disclosed herein, the communication manager 820 may support wireless communications. For example, the communication manager 820 may be configured as or otherwise support means for sending first control information indicating a resource pool for sidelink communications between the second network node and the third network node, wherein the resource pool includes a set of multiple resources. The communication manager 820 may be configured as or otherwise support means for sending second control information indicating a set of multiple sub-resource pools for sidelink communications between the second network node and the third network node, wherein each sub-resource pool in the set of multiple sub-resource pools includes one or more resources from a set of multiple resources corresponding to the resource pool, wherein the one or more resources of each respective sub-resource pool in the set of multiple sub-resource pools are non-overlapping with other sub-resource pools in the set of multiple sub-resource pools, and wherein each respective sub-resource pool in the set of multiple sub-resource pools corresponds to at least one of: a corresponding set of channel types, a corresponding set of channel conditions, or a corresponding set of operating parameters.

[0183] By including or configuring a communication manager 820 according to the examples described herein, the device 805 (e.g., a processor controlling the receiver 810, the transmitter 815, the communication manager 820, or a combination thereof or otherwise coupled thereto) may support techniques for CSI reporting based on sub-resource pools for sidelink communications, which may reduce interference, improve communication reliability, and improve resource utilization.

[0184] Figure 9 A block diagram 900 illustrates a device 905 that supports CSI reporting based on a sub-resource pool for sidelink communication according to one or more aspects of the present disclosure. The device 905 can be an example of aspects of the device 805 or the network node 115 as described herein. The device 905 may include a receiver 910, a transmitter 915, and a communication manager 920. The device 905 may also include a processor. Each of these components can communicate with each other (e.g., via one or more buses).

[0185] The receiver 910 may provide means for receiving information (such as packets, user data, control information, or any combination thereof) associated with various information channels (e.g., control channels related to CSI reporting based on sub-resource pools for sidelink communication, data channels, information channels). The information may be passed to other components of the device 905. The receiver 910 may utilize a single antenna or a collection of multiple antennas.

[0186] The transmitter 915 may provide means for transmitting signals generated by other components of the device 905. For example, the transmitter 915 may transmit information associated with various information channels (e.g., a control channel related to CSI reporting based on a sub-resource pool for sidelink communication, a data channel, an information channel), such as packets, user data, control information, or any combination thereof. In some aspects, the transmitter 915 may be co-located with the receiver 910 in a transceiver module. The transmitter 915 may utilize a single antenna or a collection of multiple antennas.

[0187] The devices 905 or their various components may be examples of components for performing various aspects of CSI reporting based on sub-resource pools for sidelink communication as described herein. For example, the communication manager 920 may include a resource pool component 925, a sub-resource pool component 930, a communication component 935, a control information component 940, a resource partitioning component 945, or any combination thereof. The communication manager 920 may be an example of various aspects of the communication manager 820 as described herein. In some aspects, the communication manager 920 or its various components may be configured to use or otherwise cooperate with the receiver 910, the transmitter 915, or both to perform various operations (e.g., receive, obtain, monitor, output, transmit). For example, the communication manager 920 may receive information from the receiver 910, transmit information to the transmitter 915, or be integrated with the receiver 910, the transmitter 915, or both to obtain information, output information, or perform various other operations as described herein.

[0188] According to examples disclosed herein, a communication manager 920 can support wireless communication at a first network node. A resource pool component 925 can be configured as or otherwise support means for receiving first control information indicating a resource pool to be used for sidelink communication between the method and the second network node, wherein the resource pool includes a set of multiple resources. A sub-resource pool component 930 can be configured as or otherwise support means for receiving second control information indicating a set of multiple sub-resource pools to be used for sidelink communication between the first network node and the second network node, wherein each sub-resource pool in the set of multiple sub-resource pools includes one or more resources from a set of multiple resources corresponding to the resource pool, wherein the one or more resources of each respective sub-resource pool in the set of multiple sub-resource pools are non-overlapping with other sub-resource pools in the set of multiple sub-resource pools, and wherein each respective sub-resource pool in the set of multiple sub-resource pools corresponds to at least one of the following: a corresponding set of channel types, a corresponding set of channel conditions, or a corresponding set of operating parameters. Communication component 935 may be configured as or otherwise support means for communicating with a second network node based on one or more sub-resource pools in the set of a plurality of sub-resource pools.

[0189] Additionally or alternatively, according to examples as disclosed herein, communication manager 920 can support wireless communication. Control information component 940 can be configured as or otherwise support means for sending first control information indicating a resource pool for sidelink communication between the second network node and the third network node, wherein the resource pool includes a set of multiple resources. Resource partitioning component 945 can be configured as or otherwise support means for sending second control information indicating a set of multiple sub-resource pools for sidelink communication between the second network node and the third network node, wherein each sub-resource pool in the set of multiple sub-resource pools includes one or more resources from a set of multiple resources corresponding to the resource pool, wherein the one or more resources of each respective sub-resource pool in the set of multiple sub-resource pools are non-overlapping with other sub-resource pools in the set of multiple sub-resource pools, and wherein each respective sub-resource pool in the set of multiple sub-resource pools corresponds to at least one of: a corresponding set of channel types, a corresponding set of channel conditions, or a corresponding set of operating parameters.

[0190] Figure 10 A block diagram 1000 illustrates a communication manager 1020 that supports CSI reporting based on sub-resource pools for sidelink communications in accordance with one or more aspects of the present disclosure. The communication manager 1020 may be an example of aspects of the communication manager 820, the communication manager 920, or both as described herein. The communication manager 1020 or its various components may be examples of components for performing various aspects of CSI reporting based on sub-resource pools for sidelink communications as described herein. For example, the communication manager 1020 may include a resource pool component 1025, a sub-resource pool component 1030, a communication component 1035, a control information component 1040, a resource partitioning component 1045, an activation state component 1050, a resource grant component 1055, a sidelink component 1060, a frequency hopping component 1065, a multiplexing component 1070, a CSI component 1075, a CSI component 1080, or any combination thereof. Each of these components may communicate directly or indirectly with each other (e.g., via one or more buses).

[0191] According to examples disclosed herein, a communication manager 1020 can support wireless communication at a first network node. A resource pool component 1025 can be configured as or otherwise support means for receiving first control information indicating a resource pool to be used for sidelink communication between the method and the second network node, wherein the resource pool includes a set of multiple resources. A sub-resource pool component 1030 can be configured as or otherwise support means for receiving second control information indicating a set of multiple sub-resource pools to be used for sidelink communication between the first network node and the second network node, wherein each sub-resource pool in the set of multiple sub-resource pools includes one or more resources from a set of multiple resources corresponding to the resource pool, wherein the one or more resources of each respective sub-resource pool in the set of multiple sub-resource pools are non-overlapping with other sub-resource pools in the set of multiple sub-resource pools, and wherein each respective sub-resource pool in the set of multiple sub-resource pools corresponds to at least one of the following: a corresponding set of channel types, a corresponding set of channel conditions, or a corresponding set of operating parameters. Communication component 1035 may be configured as or otherwise support means for communicating with a second network node based on one or more sub-resource pools in the set of a plurality of sub-resource pools.

[0192] In some aspects, the second control information indicates one or more differences between the set of multiple sub-resource pools and the resource pool. In some aspects, the second control information indicates a respective size of each sub-resource pool in the set of multiple sub-resource pools, wherein the respective size of each sub-resource pool is based on a capability of the method.

[0193] In some aspects, activation state component 1050 may be configured as or otherwise support means for sending information indicating a change in the respective activation state of at least the respective one or more resources of each sub-resource pool in a common resource pool common to a set of multiple network nodes including the first network node and the second network node.

[0194] In some aspects, the common resource pool is a primary resource pool associated with a primary component carrier, a primary sub-resource pool within a primary resource pool associated with a primary component carrier, or a secondary resource pool associated with a secondary component carrier.

[0195] In some aspects, activation state component 1050 may be configured as or otherwise support means for applying a change in respective activation states based on respective ACK information from one or more network nodes in the set of multiple network nodes other than the first and second network nodes.

[0196] In some aspects, the information indicative of the change in the respective activation state indicates the respective change in the activation state on a per sub-resource pool basis.

[0197] In some aspects, resource grant component 1055 may be configured as or otherwise support means for receiving a resource grant in a DCI or SCI, the resource grant being sent in one or more transmissions in one or more sub-resource pools in a set of multiple sub-resource pools, wherein the resource grant is a dynamic grant or a configured grant.

[0198] In some aspects, to support receiving a resource grant in a DCI or SCI, resource granting component 1055 may be configured as or otherwise support means for receiving a respective SCI corresponding to each respective one of the scheduled one or more transmissions.

[0199] In some aspects, the one or more transmissions scheduled in the one or more sub-resource pools include sidelink channel transmissions scheduled across the one or more sub-resource pools, and wherein each sub-resource pool in the one or more sub-resource pools is associated with a respective RV of the sidelink channel transmission.

[0200] In some aspects, resource grant component 1055 can be configured as or otherwise support means for sending a resource grant in an SCI that schedules one or more transmissions in one or more sub-resource pools in a set of multiple sub-resource pools, wherein the resource grant is a dynamic grant or a configured grant.

[0201] In some aspects, activation state component 1050 can be configured as or otherwise support means for receiving information indicating a change in activation state of at least one or more resources of each sub-resource pool in a set of a plurality of sub-resource pools.

[0202] In some aspects, the resource grant component 1055 may be configured as or otherwise support a component for receiving a resource grant in a DCI that schedules one or more transmissions in one or more sub-resource pools, wherein the DCI includes, for each of the one or more scheduled transmissions, a corresponding sub-resource pool indication indicating one or more TDRAs or one or more FDRAs for the corresponding transmission and at least one sub-resource pool from a set of multiple sub-resource pools.

[0203] In some aspects, the activation state component 1050 may be configured as or otherwise support a component for receiving a DCI that is configured to activate corresponding one or more resources of each sub-resource pool in a set of multiple sub-resource pools such that the number of activated resources of each sub-resource pool is less than a threshold amount, wherein the DCI indicates a resource pool index corresponding to the resource pool and one or more sub-resource pool indices corresponding to the activated resources of each sub-resource pool.

[0204] In some aspects, to support communication with the second network node, sidelink component 1060 may be configured as or otherwise support means for transmitting sidelink transmissions across at least one or more resources in a set of multiple sub-resource pools, wherein at least one or more resources in the set of multiple sub-resource pools are aligned to facilitate coherent transmission of sidelink communications or offset from each other to avoid overlap in time.

[0205] In some aspects, to support communication with the second network node, sidelink component 1060 may be configured as or otherwise support means for receiving sidelink transmissions across at least one or more resources in a set of multiple sub-resource pools, wherein at least one or more resources in the set of multiple sub-resource pools are aligned to facilitate coherent transmission of sidelink communications or offset from each other to avoid overlap in time.

[0206] In some aspects, to support communicating with the second network node, communicating component 1035 may be configured as or otherwise support means for sending one or more repetitions of data or one or more repetitions of a transport block via different sub-resource pools in the set of multiple sub-resource pools.

[0207] In some aspects, the resource grant component 1055 may be configured to function as or otherwise support a component for receiving control information that schedules at least two different sets of configuration grant transmissions across a set of multiple sub-resource pools, wherein the at least two different sets of configuration grant transmissions are associated with different TDRAs to prevent temporal overlap between individual configuration grant transmissions in the different sets of configuration grant transmissions.

[0208] In some aspects, to support communication with the second network node, communication component 1035 may be configured as or otherwise support means for communicating with the second network node in a first subset of a set of multiple sub-resource pools, the first subset being different from a second subset of the set of multiple sub-resource pools, the second subset of the set of multiple sub-resource pools being allocated for use by network nodes having lower power or lower bandwidth relative to the method.

[0209] In some aspects, the corresponding set of channel types includes a physical sidelink shared channel, a physical sidelink control channel, or a physical sidelink feedback channel, and wherein the corresponding set of channel conditions includes the number of subchannels, subchannel size, or starting resource block, and wherein the corresponding set of operating parameters includes parameters related to code block rate, MCS, sensing configuration, or power control.

[0210] In some aspects, to support communication with the second network node, the frequency hopping component 1065 can be configured as or otherwise support means for transmitting one or more sidelink reference signals in a set of multiple sub-resource pools based on one or more frequency hopping patterns, wherein the set of multiple sub-resource pools is sounded in a single time slot or across a set of multiple time slots according to the one or more frequency hopping patterns.

[0211] In some aspects, the second control information indicates one or more frequency hopping patterns, wherein each of the one or more frequency hopping patterns is configured to probe a plurality of corresponding sub-resource pools in the set of a plurality of sub-resource pools.

[0212] In some aspects, the second control information indicates one or more frequency hopping patterns, wherein each of the one or more frequency hopping patterns is associated with a single respective sub-resource pool in the set of a plurality of sub-resource pools.

[0213] In some aspects, frequency hopping component 1065 can be configured as or otherwise support means for receiving third control information comprising a set of parameters for sidelink reference signal transmission on a per-sub-resource pool basis, wherein the set of parameters indicates a periodicity, a number of ports, a power offset relative to a channel, or any combination thereof. In some aspects, the second control information indicates a frequency spacing between a set of multiple sub-resource pools, the frequency spacing being based on capabilities of the method.

[0214] In some aspects, frequency hopping component 1065 may be configured as or otherwise support means for communicating a reservation request indicating one or more frequency hopping patterns to be applied to sidelink reference signals transmitted or received in a set of multiple sub-resource pools.

[0215] In some aspects, multiplexing component 1070 may be configured as or otherwise support means for multiplexing the transmission of one or more sidelink reference signals with additional sidelink reference signals reserved for transmission over a set of multiple sub-resource pools, wherein the one or more sidelink reference signals are multiplexed with the additional sidelink reference signals via application of one or more frequency hopping patterns associated with the set of multiple sub-resource pools.

[0216] In some aspects, a hopping pattern in the one or more hopping patterns is associated with a source identifier, a destination identifier, a group common identifier, or an identifier indicated to the method.

[0217] In some aspects, the CSI component 1075 may be configured as or otherwise support means for receiving third control information comprising a set of parameters related to one or more CSI reports to be sent, wherein the values ​​of the set of parameters are based on the number of subchannels in a corresponding sub-resource pool in a set of multiple sub-resource pools.

[0218] In some aspects, CSI component 1080 may be configured as or otherwise support means for transmitting a MAC-CE indicating CSI for a corresponding sub-resource pool in a set of a plurality of sub-resource pools, the MAC-CE including a codepoint indicating that the CSI is associated with a particular sub-resource pool in the set of a plurality of sub-resource pools. In some aspects, the codepoint is included within a reserved bit field of the MAC-CE.

[0219] In some aspects, to support transmitting MAC-CE, CSI component 1080 may be configured as or otherwise support means for transmitting, via MAC-CE, multiple sets of CSI for corresponding sub-resource pools in a set of multiple sub-resource pools, each set of CSI including a corresponding CQI, a corresponding RI, or both.

[0220] In some aspects, CSI component 1080 may be configured as or otherwise support means for concurrently sending multiple CSI reports based on capabilities of the method and the number of subchannels or resources in each sub-resource pool in a set of multiple sub-resource pools.

[0221] In some aspects, to support sending multiple CSI reports, CSI component 1080 may be configured as or otherwise support means for sending a MAC-CE including a header and one or more bits indicating CSI for each sub-resource pool in a set of multiple sub-resource pools, wherein the header indicates the set of multiple sub-resource pools for which CSI is to be reported.

[0222] Additionally or alternatively, according to examples disclosed herein, communication manager 1020 can support wireless communication. Control information component 1040 can be configured as or otherwise support means for sending first control information indicating a resource pool for sidelink communication between the second network node and the third network node, wherein the resource pool includes a set of multiple resources. Resource partitioning component 1045 can be configured as or otherwise support means for sending second control information indicating a set of multiple sub-resource pools for sidelink communication between the second network node and the third network node, wherein each sub-resource pool in the set of multiple sub-resource pools includes one or more resources from a set of multiple resources corresponding to the resource pool, wherein the one or more resources of each respective sub-resource pool in the set of multiple sub-resource pools are non-overlapping with other sub-resource pools in the set of multiple sub-resource pools, and wherein each respective sub-resource pool in the set of multiple sub-resource pools corresponds to at least one of: a corresponding set of channel types, a corresponding set of channel conditions, or a corresponding set of operating parameters.

[0223] In some aspects, the second control information indicates one or more differences between the set of multiple sub-resource pools and the resource pool. In some aspects, the second control information indicates a respective size of each sub-resource pool in the set of multiple sub-resource pools, wherein the respective size of each sub-resource pool is based on a capability of the second network node.

[0224] In some aspects, resource grant component 1055 may be configured as or otherwise support means for sending a resource grant in a DCI or SCI that is sent in one or more transmissions in one or more sub-resource pools in a set of multiple sub-resource pools, wherein the resource grant is a dynamic grant or a configured grant.

[0225] In some aspects, activation state component 1050 can be configured as or otherwise support means for sending information indicating a change in activation state of at least one or more resources of each sub-resource pool in a set of multiple sub-resource pools.

[0226] In some aspects, the resource grant component 1055 may be configured as or otherwise support a component for sending a resource grant in a DCI that schedules one or more transmissions in one or more sub-resource pools from a set of multiple sub-resource pools, wherein the DCI includes, for each of the one or more scheduled transmissions, a corresponding sub-resource pool indication indicating one or more TDRAs or one or more frequency domain resource allocations for the corresponding transmission and at least one sub-resource pool from the set of multiple sub-resource pools.

[0227] In some aspects, the activation state component 1050 may be configured as or otherwise support a component for sending a DCI that is configured to activate corresponding one or more resources of each sub-resource pool in a set of multiple sub-resource pools such that the number of activated resources of each sub-resource pool is less than a threshold amount, wherein the DCI indicates a resource pool index corresponding to the resource pool and one or more sub-resource pool indices corresponding to the activated resources of each sub-resource pool.

[0228] In some aspects, the resource grant component 1055 may be configured as or otherwise support a component for sending control information that schedules at least two different sets of configuration grant transmissions across a set of multiple sub-resource pools, wherein the at least two different sets of configuration grant transmissions are associated with different TDRAs to prevent time domain overlap between individual configuration grant transmissions in the different sets of configuration grant transmissions.

[0229] In some aspects, the frequency hopping component 1065 may be configured as or otherwise support means for transmitting third control information comprising a set of parameters for sidelink reference signal transmission on a per sub-resource pool basis, wherein the set of parameters indicates a periodicity, a number of ports, a power offset relative to a channel, or any combination thereof.

[0230] In some aspects, the second control information indicates a frequency gap between the sets of the plurality of sub-resource pools, the frequency gap being based on a capability of the second network node.

[0231] In some aspects, the CSI component 1080 may be configured as or otherwise support means for sending third control information comprising a set of parameters related to one or more CSI reports to be sent, wherein the values ​​of the set of parameters are based on the number of subchannels in a corresponding sub-resource pool in the set of multiple sub-resource pools.

[0232] In some aspects, CSI component 1080 may be configured as or otherwise support means for receiving a MAC-CE indicating CSI for a corresponding sub-resource pool in a set of a plurality of sub-resource pools, the MAC-CE including a codepoint indicating that the CSI is associated with a particular sub-resource pool in the set of a plurality of sub-resource pools. In some aspects, the codepoint is included within a reserved bit field of the MAC-CE.

[0233] In some aspects, to support receiving MAC-CE, CSI component 1080 may be configured as or otherwise support means for receiving, via MAC-CE, multiple sets of CSI for corresponding sub-resource pools in a set of multiple sub-resource pools, each set of CSI including a corresponding CQI, a corresponding RI, or both.

[0234] In some aspects, CSI component 1080 may be configured as or otherwise support means for concurrently receiving multiple CSI reports based on capabilities of the method and the number of subchannels or resources in each sub-resource pool in the set of multiple sub-resource pools.

[0235] In some aspects, to support receiving multiple CSI reports, CSI component 1080 may be configured as or otherwise support means for receiving a MAC-CE including a header and one or more bits indicating CSI for each sub-resource pool in a set of multiple sub-resource pools, wherein the header indicates the set of multiple sub-resource pools for which CSI is to be reported.

[0236] Figure 11 A diagram of a system 1100 including a device 1105 supporting CSI reporting based on a sub-resource pool for sidelink communication according to one or more aspects of the present disclosure is illustrated. The device 1105 may be an example of, or include components of, a device 805, a device 905, or a network node as described herein. The device 1105 may include components for two-way voice and data communication, including components for sending and receiving communications, such as a communication manager 1120, an I / O controller 1110, a transceiver 1115, an antenna 1125, a memory 1130, code 1135, and a processor 1140. These components may be in electronic communication or otherwise coupled (e.g., operatively, communicatively, functionally, electronically, electrically) via one or more buses (e.g., bus 1145).

[0237] I / O controller 1110 can manage input and output signals for device 1105. I / O controller 1110 can also manage peripheral devices that are not integrated into device 1105. In some cases, I / O controller 1110 can represent a physical connection or port to an external peripheral device. In some cases, I / O controller 1110 can utilize an operating system, such as or another known operating system. Additionally or alternatively, I / O controller 1110 may represent or interact with a modem, keyboard, mouse, touch screen, or similar device. In some cases, I / O controller 1110 may be implemented as part of a processor, such as processor 1140. In some cases, a user may interact with device 1105 via I / O controller 1110 or via hardware components controlled by I / O controller 1110.

[0238] In some cases, device 1105 may include a single antenna 1125. However, in some other cases, device 1105 may have more than one antenna 1125, which may be capable of concurrently transmitting or receiving multiple wireless transmissions. Transceiver 1115 may communicate bidirectionally via one or more antennas 1125, wired, or wireless links, as described herein. For example, transceiver 1115 may represent a wireless transceiver and may communicate bidirectionally with another wireless transceiver. Transceiver 1115 may also include a modem for modulating packets; providing the modulated packets to one or more antennas 1125 for transmission; and demodulating packets received from one or more antennas 1125. Transceiver 1115, or transceiver 1115 and one or more antennas 1125, may be examples of transmitter 815, transmitter 915, receiver 810, receiver 910, or any combination thereof, or components thereof, as described herein.

[0239] Memory 1130 may include RAM and ROM. Memory 1130 may store computer-readable, computer-executable code 1135 including instructions that, when executed by processor 1140, cause device 1105 to perform the various functions described herein. Code 1135 may be stored in a non-transitory computer-readable medium (such as system memory) or another type of memory. In some cases, code 1135 may not be directly executable by processor 1140, but may (e.g., when compiled and executed) cause a computer to perform the functions described herein. In some cases, memory 1130 may include a BIOS, etc., which may control basic hardware or software operations, such as interaction with peripheral components or devices.

[0240] The processor 1140 may include an intelligent hardware device (e.g., a general-purpose processor, a DSP, a CPU, a microcontroller, an ASIC, an FPGA, a programmable logic device, a discrete gate or transistor logic component, a discrete hardware component, or any combination thereof). In some cases, the processor 1140 may be configured to operate a memory array using a memory controller. In some other cases, the memory controller may be integrated into the processor 1140. The processor 1140 may be configured to execute computer-readable instructions stored in a memory (e.g., memory 1130) to cause the device 1105 to perform various functions (e.g., various functions or tasks of supporting CSI reporting based on a sub-resource pool for sidelink communication). For example, the device 1105 or a component of the device 1105 may include a processor 1140 and a memory 1130 coupled to or coupled to the processor 1140, the processor 1140 and the memory 1130 being configured to perform the various functions described herein.

[0241] According to an example disclosed herein, a communication manager 1120 may support wireless communication at a first network node. For example, the communication manager 1120 may be configured as, or otherwise support, means for receiving first control information indicating a resource pool for sidelink communication between the method and a second network node, wherein the resource pool includes a set of multiple resources. The communication manager 1120 may be configured as, or otherwise support, means for receiving second control information indicating a set of multiple sub-resource pools for sidelink communication between the first network node and the second network node, wherein each sub-resource pool in the set of multiple sub-resource pools includes one or more resources from a set of multiple resources corresponding to the resource pool, wherein the one or more resources of each respective sub-resource pool in the set of multiple sub-resource pools are non-overlapping with other sub-resource pools in the set of multiple sub-resource pools, and wherein each respective sub-resource pool in the set of multiple sub-resource pools corresponds to at least one of: a corresponding set of channel types, a corresponding set of channel conditions, or a corresponding set of operating parameters. The communication manager 1120 may be configured as or otherwise support means for communicating with the second network node based on one or more sub-resource pools in the set of a plurality of sub-resource pools.

[0242] Additionally or alternatively, according to examples as disclosed herein, the communication manager 1120 may support wireless communications. For example, the communication manager 1120 may be configured as or otherwise support means for transmitting first control information indicating a resource pool for sidelink communications between a second network node and a third network node, wherein the resource pool includes a set of a plurality of resources. The communication manager 1120 may be configured as or otherwise support means for transmitting second control information indicating a set of a plurality of sub-resource pools for sidelink communications between the second network node and the third network node, wherein each sub-resource pool in the set of the plurality of sub-resource pools includes one or more resources from a set of a plurality of resources corresponding to the resource pool, wherein the one or more resources of each respective sub-resource pool in the set of the plurality of sub-resource pools are non-overlapping with other sub-resource pools in the set of the plurality of sub-resource pools, and wherein each respective sub-resource pool in the set of the plurality of sub-resource pools corresponds to at least one of: a respective set of channel types, a respective set of channel conditions, or a respective set of operating parameters.

[0243] By including or configuring the communication manager 1120 according to examples as described herein, the device 1105 can support techniques for CSI reporting based on sub-resource pools for sidelink communications, which can reduce interference, improve communication reliability, and increase resource utilization.

[0244] In some aspects, the communication manager 1120 may be configured to perform various operations (e.g., receive, monitor, transmit) using or otherwise coordinating with the transceiver 1115, one or more antennas 1125, or any combination thereof. Although the communication manager 1120 is illustrated as a separate component, in some aspects, one or more functions described with reference to the communication manager 1120 may be supported or performed by the processor 1140, the memory 1130, the code 1135, or any combination thereof. For example, the code 1135 may include instructions that are executable by the processor 1140 to cause the device 1105 to perform various aspects of CSI reporting based on a sub-resource pool for sidelink communication as described herein, or the processor 1140 and the memory 1130 may be otherwise configured to perform or support such operations.

[0245] Figure 12 A flowchart illustrating a method 1200 for supporting CSI reporting based on a sub-resource pool for sidelink communication according to one or more aspects of the present disclosure is illustrated. The operations of the method 1200 may be implemented by a network node or component thereof as described herein. For example, the operations of the method 1200 may be implemented by a network node or component thereof as described herein. Figures 1 to 11 In some aspects, a network node may execute an instruction set to control functional elements of the network node to perform the described functions. Additionally or alternatively, a network node may use dedicated hardware to perform various aspects of the described functions.

[0246] At 1205, the method may include receiving first control information indicating a resource pool for sidelink communication between the method and a second network node, wherein the resource pool includes a collection of multiple resources. The operations of 1205 may be performed according to examples disclosed herein. In some aspects, aspects of the operations of 1205 may be performed as described in reference to Figure 10 The resource pool component 1025 described is executed.

[0247] At 1210, the method may include receiving second control information indicating a set of multiple sub-resource pools for sidelink communication between the first network node and the second network node, wherein each sub-resource pool in the set of multiple sub-resource pools includes corresponding one or more resources from a set of multiple resources corresponding to a resource pool, wherein the corresponding one or more resources of each corresponding sub-resource pool in the set of multiple sub-resource pools are non-overlapping with other sub-resource pools in the set of multiple sub-resource pools, and wherein each corresponding sub-resource pool in the set of multiple sub-resource pools corresponds to at least one of the following: a corresponding set of channel types, a corresponding set of channel conditions, or a corresponding set of operating parameters. The operations of 1210 may be performed according to examples as disclosed herein. In some aspects, aspects of the operations of 1210 may be performed by reference to Figure 10The sub-resource pool component 1030 described above is executed.

[0248] At 1215, the method may include communicating with a second network node based on one or more sub-resource pools in the set of multiple sub-resource pools. The operations of 1215 may be performed according to the examples disclosed herein. In some aspects, aspects of the operations of 1215 may be performed as described in reference to Figure 10 The described communication component 1035 is executed.

[0249] Figure 13 A flowchart illustrating a method 1300 for supporting CSI reporting based on a sub-resource pool for sidelink communication according to one or more aspects of the present disclosure is illustrated. The operations of the method 1300 may be implemented by a network node or component thereof as described herein. For example, the operations of the method 1300 may be implemented by a network node or component thereof as described herein. Figures 1 to 11 In some aspects, a network node may execute an instruction set to control functional elements of the network node to perform the described functions. Additionally or alternatively, a network node may use dedicated hardware to perform various aspects of the described functions.

[0250] At 1305, the method may include receiving first control information indicating a resource pool for sidelink communication between the method and a second network node, wherein the resource pool includes a set of multiple resources. The operations of 1305 may be performed according to the examples disclosed herein. In some aspects, aspects of the operations of 1305 may be performed as described in reference to Figure 10 The resource pool component 1025 described is executed.

[0251] At 1310, the method may include receiving second control information indicating a set of multiple sub-resource pools for sidelink communication between the first network node and the second network node, wherein each sub-resource pool in the set of multiple sub-resource pools includes corresponding one or more resources from a set of multiple resources corresponding to a resource pool, wherein the corresponding one or more resources of each corresponding sub-resource pool in the set of multiple sub-resource pools are non-overlapping with other sub-resource pools in the set of multiple sub-resource pools, and wherein each corresponding sub-resource pool in the set of multiple sub-resource pools corresponds to at least one of the following: a corresponding set of channel types, a corresponding set of channel conditions, or a corresponding set of operating parameters. The operations of 1310 may be performed according to examples as disclosed herein. In some aspects, aspects of the operations of 1310 may be performed by reference to Figure 10 The sub-resource pool component 1030 described above is executed.

[0252] At 1315, the method may include receiving a resource grant in a DCI or SCI that schedules one or more transmissions in one or more sub-resource pools in a set of a plurality of sub-resource pools, wherein the resource grant is a dynamic grant or a configuration grant. The operations of 1315 may be performed according to examples as disclosed herein. In some aspects, aspects of the operations of 1315 may be performed as described in reference to Figure 10 The described resource grant component 1055 is executed.

[0253] At 1320, the method may include communicating with a second network node based on one or more sub-resource pools in a set of a plurality of sub-resource pools. The operations of 1320 may be performed according to examples disclosed herein. In some aspects, aspects of the operations of 1320 may be as described in reference to Figure 10 The described communication component 1035 is executed.

[0254] Figure 14 A flowchart illustrating a method 1400 for supporting CSI reporting based on a sub-resource pool for sidelink communication according to one or more aspects of the present disclosure is illustrated. The operations of the method 1400 may be implemented by a network node or component thereof as described herein. For example, the operations of the method 1400 may be implemented by a network node or component thereof as described herein. Figures 1 to 11 In some aspects, a network node may execute an instruction set to control functional elements of the network node to perform the described functions. Additionally or alternatively, a network node may use dedicated hardware to perform various aspects of the described functions.

[0255] At 1405, the method may include receiving first control information indicating a resource pool for sidelink communication between the method and a second network node, wherein the resource pool includes a collection of multiple resources. The operations of 1405 may be performed according to examples disclosed herein. In some aspects, aspects of the operations of 1405 may be performed as described in reference to Figure 10 The resource pool component 1025 described is executed.

[0256] At 1410, the method may include: receiving second control information indicating a set of multiple sub-resource pools for sidelink communication between the first network node and the second network node, wherein each sub-resource pool in the set of multiple sub-resource pools includes corresponding one or more resources from a set of multiple resources corresponding to the resource pool, wherein the corresponding one or more resources of each corresponding sub-resource pool in the set of multiple sub-resource pools are non-overlapping with other sub-resource pools in the set of multiple sub-resource pools, and wherein each corresponding sub-resource pool in the set of multiple sub-resource pools corresponds to at least one of the following: a corresponding set of channel types, a corresponding set of channel conditions, or a corresponding set of operating parameters. The operations of 1410 may be performed according to examples as disclosed herein. In some aspects, aspects of the operations of 1410 may be performed by reference to Figure 10 The sub-resource pool component 1030 described above is executed.

[0257] At 1415, the method may include: multiplexing the transmission of one or more sidelink reference signals with additional sidelink reference signals reserved for transmission over a set of multiple sub-resource pools, wherein the one or more sidelink reference signals are multiplexed with the additional sidelink reference signals via application of one or more frequency hopping patterns associated with the set of multiple sub-resource pools. The operations of 1415 may be performed according to examples as disclosed herein. In some aspects, aspects of the operations of 1415 may be performed by methods as described in reference to Figure 10 The described multiplexing component 1070 is performed.

[0258] At 1420, the method may include communicating with a second network node based on one or more sub-resource pools in a set of a plurality of sub-resource pools. The operations of 1420 may be performed according to examples disclosed herein. In some aspects, aspects of the operations of 1420 may be as described in reference to Figure 10 The described communication component 1035 is executed.

[0259] Figure 15 A flowchart illustrating a method 1500 for supporting CSI reporting based on a sub-resource pool for sidelink communication according to one or more aspects of the present disclosure is illustrated. The operations of the method 1500 may be implemented by a network node or component thereof as described herein. For example, the operations of the method 1500 may be implemented by a network node or component thereof as described herein. Figures 1 to 11 In some aspects, a network node may execute an instruction set to control functional elements of the network node to perform the described functions. Additionally or alternatively, a network node may use dedicated hardware to perform various aspects of the described functions.

[0260] At 1505, the method may include: sending first control information indicating a resource pool for sidelink communication between the second network node and the third network node, wherein the resource pool includes a set of multiple resources. The operations of 1505 may be performed according to the examples disclosed herein. In some aspects, aspects of the operations of 1505 may be performed as described in reference to Figure 10 The control information component 1040 described is executed.

[0261] At 1510, the method may include: sending second control information indicating a set of multiple sub-resource pools for sidelink communication between the second network node and the third network node, wherein each sub-resource pool in the set of multiple sub-resource pools includes corresponding one or more resources from a set of multiple resources corresponding to a resource pool, wherein the corresponding one or more resources of each corresponding sub-resource pool in the set of multiple sub-resource pools are non-overlapping with other sub-resource pools in the set of multiple sub-resource pools, and wherein each corresponding sub-resource pool in the set of multiple sub-resource pools corresponds to at least one of the following: a corresponding set of channel types, a corresponding set of channel conditions, or a corresponding set of operating parameters. The operations of 1510 may be performed according to examples as disclosed herein. In some aspects, aspects of the operations of 1510 may be performed by reference to Figure 10 The resource partitioning component 1045 described is performed.

[0262] Figure 16 A flowchart illustrating a method 1600 for supporting CSI reporting based on a sub-resource pool for sidelink communication according to one or more aspects of the present disclosure is illustrated. The operations of the method 1600 may be implemented by a network node or component thereof as described herein. For example, the operations of the method 1600 may be implemented by a network node or component thereof as described herein. Figures 1 to 11 In some aspects, a network node may execute an instruction set to control functional elements of the network node to perform the described functions. Additionally or alternatively, a network node may use dedicated hardware to perform various aspects of the described functions.

[0263] At 1605, the method may include: sending first control information indicating a resource pool for sidelink communication between the second network node and the third network node, wherein the resource pool includes a collection of multiple resources. The operations of 1605 may be performed according to the examples disclosed herein. In some aspects, aspects of the operations of 1605 may be performed as described in reference to Figure 10 The control information component 1040 is described as executing.

[0264] At 1610, the method may include: sending second control information indicating a set of multiple sub-resource pools for sidelink communication between the second network node and the third network node, wherein each sub-resource pool in the set of multiple sub-resource pools includes corresponding one or more resources from a set of multiple resources corresponding to a resource pool, wherein the corresponding one or more resources of each corresponding sub-resource pool in the set of multiple sub-resource pools are non-overlapping with other sub-resource pools in the set of multiple sub-resource pools, and wherein each corresponding sub-resource pool in the set of multiple sub-resource pools corresponds to at least one of the following: a corresponding set of channel types, a corresponding set of channel conditions, or a corresponding set of operating parameters. The operations of 1610 may be performed according to examples as disclosed herein. In some aspects, aspects of the operations of 1610 may be performed by reference to Figure 10 The resource partitioning component 1045 described is performed.

[0265] At 1615, the method may include receiving a MAC-CE indicating CSI for a corresponding sub-resource pool in a set of a plurality of sub-resource pools, the MAC-CE including a code point indicating that the CSI is related to a particular sub-resource pool in the set of a plurality of sub-resource pools. The operations of 1615 may be performed according to examples as disclosed herein. In some aspects, aspects of the operations of 1615 may be performed as described in reference to Figure 10 The described CSI component 1080 is performed.

[0266] The following provides an overview of various aspects of the disclosure:

[0267] Aspect 1: A method for wireless communication at a first network node, the method comprising: receiving first control information, the first control information indicating a resource pool for side link communication between the method and a second network node, wherein the resource pool includes multiple resources; receiving second control information, the second control information indicating a plurality of sub-resource pools for the side link communication between the first network node and the second network node, wherein each of the multiple sub-resource pools includes corresponding one or more resources of the multiple resources corresponding to the resource pool, wherein the corresponding one or more resources of each corresponding sub-resource pool in the multiple sub-resource pools are non-overlapping with other sub-resource pools in the multiple sub-resource pools, and wherein each corresponding sub-resource pool in the multiple sub-resource pools corresponds to at least one of the following: a corresponding set of channel types, a corresponding set of channel conditions, or a corresponding set of operating parameters; and communicating with the second network node based on one or more sub-resource pools in the multiple sub-resource pools.

[0268] Aspect 2: The method according to aspect 1, wherein the second control information indicates one or more differences between the multiple sub-resource pools and the resource pool.

[0269] Aspect 3: The method according to any one of aspects 1 to 2, wherein the second control information indicates a corresponding size of each sub-resource pool in the plurality of sub-resource pools, wherein the corresponding size of each sub-resource pool is based on a capability of the method.

[0270] Aspect 4: According to the method described in any one of Aspects 1 to 3, the method further includes: sending information indicating a change in the corresponding activation status of at least one or more resources of each sub-resource pool in a common resource pool that is common to multiple network nodes including the first network node and the second network node.

[0271] Aspect 5: The method according to aspect 4, wherein the common resource pool is a primary resource pool associated with a primary component carrier, a primary sub-resource pool within the primary resource pool associated with the primary component carrier, or a secondary resource pool associated with a secondary component carrier.

[0272] Aspect 6: According to the method of any one of aspects 4 to 5, the method also includes: applying the change of the corresponding activation state based on corresponding ACK information from one or more network nodes among the multiple network nodes that are different from the first network node and the second network node.

[0273] Aspect 7: The method according to any one of aspects 4 to 6, wherein the information indicative of the change in the respective activation status indicates the respective change in activation status on a per sub-resource pool basis.

[0274] Aspect 8: According to the method described in any one of Aspects 1 to 7, the method further includes: receiving a resource grant in a DCI or SCI, wherein the resource grant schedules one or more transmissions in one or more sub-resource pools among the multiple sub-resource pools, wherein the resource grant is a dynamic grant or a configuration grant.

[0275] Aspect 9: The method of aspect 8, wherein receiving the resource grant in the DCI or the SCI comprises receiving a respective SCI corresponding to each respective one of the one or more scheduled transmissions.

[0276] Aspect 10: A method according to any one of Aspects 8 to 9, wherein the one or more transmissions scheduled in the one or more sub-resource pools include side link channel transmissions scheduled across the one or more sub-resource pools, and wherein each of the one or more sub-resource pools is associated with a corresponding RV of the side link channel transmission.

[0277] Aspect 11: According to the method described in any one of Aspects 1 to 10, the method further includes: sending a resource grant in the SCI, wherein the resource grant schedules one or more transmissions in one or more sub-resource pools in the multiple sub-resource pools, wherein the resource grant is a dynamic grant or a configuration grant.

[0278] Aspect 12: The method according to any one of aspects 1 to 11, further comprising: receiving information indicating a change in activation status of at least one or more resources of each sub-resource pool in the plurality of sub-resource pools.

[0279] Aspect 13: According to the method described in any one of Aspects 1 to 12, the method further includes: receiving a resource grant in a DCI, wherein the resource grant schedules one or more transmissions in the one or more sub-resource pools, wherein the DCI includes a corresponding sub-resource pool indication for each of the one or more scheduled transmissions, and the corresponding sub-resource pool indication indicates one or more TDRAs or one or more FDRAs used for the corresponding transmission and at least one sub-resource pool among the multiple sub-resource pools.

[0280] Aspect 14: According to the method described in any one of Aspects 1 to 13, the method further includes: receiving DCI, wherein the DCI is configured to activate the corresponding one or more resources of each sub-resource pool in the multiple sub-resource pools, so that the number of activated resources of each sub-resource pool is less than a threshold amount, wherein the DCI indicates a resource pool index corresponding to the resource pool and one or more sub-resource pool indices corresponding to the activated resources of each sub-resource pool.

[0281] Aspect 15: A method according to any one of Aspects 1 to 14, wherein communicating with the second network node includes: sending a side link transmission across at least one or more resources in the multiple sub-resource pools, wherein the at least one or more resources in the multiple sub-resource pools are aligned to facilitate coherent transmission of the side link communication, or offset from each other to avoid overlap in time.

[0282] Aspect 16: A method according to any one of Aspects 1 to 15, wherein communicating with the second network node includes: receiving side link transmissions across at least one or more resources in the multiple sub-resource pools, wherein the at least one or more resources in the multiple sub-resource pools are aligned to facilitate coherent transmission of the side link communications, or offset from each other to avoid overlap in time.

[0283] Aspect 17: The method according to any one of aspects 1 to 16, wherein communicating with the second network node comprises sending one or more repetitions of data or one or more repetitions of a transport block via different sub-resource pools of the plurality of sub-resource pools.

[0284] Aspect 18: According to the method described in any one of Aspects 1 to 17, the method further includes: receiving control information, which schedules at least two different sets of configuration grant transmissions across the multiple sub-resource pools, wherein the at least two different sets of configuration grant transmissions are associated with different TDRAs to prevent time domain overlap between the individual configuration grant transmissions in the different sets of configuration grant transmissions.

[0285] Aspect 19: A method according to any one of Aspects 1 to 18, wherein communicating with the second network node includes: communicating with the second network node in a first subset of the multiple sub-resource pools, the first subset being different from a second subset of the multiple sub-resource pools, and the second subset of the multiple sub-resource pools being allocated for use by network nodes with lower power or lower bandwidth relative to the method.

[0286] Aspect 20: A method according to any one of Aspects 1 to 19, wherein the corresponding set of channel types includes a physical side link shared channel, a physical side link control channel or a physical side link feedback channel, and wherein the corresponding set of channel conditions includes the number of subchannels, the subchannel size or the starting resource block, and wherein the corresponding set of operating parameters includes parameters related to code block rate, MCS, sensing configuration or power control.

[0287] Aspect 21: A method according to any one of Aspects 1 to 20, wherein the corresponding set of channel types includes a sidelink reference signal channel type, and wherein communicating with the second network node includes: sending one or more sidelink reference signals in the multiple sub-resource pools based on one or more frequency hopping patterns, wherein the multiple sub-resource pools are detected in a single time slot or across multiple time slots according to the one or more frequency hopping patterns.

[0288] Aspect 22: The method according to Aspect 21, wherein the second control information indicates the one or more frequency hopping patterns, wherein each of the one or more frequency hopping patterns is configured to detect multiple corresponding sub-resource pools in the multiple sub-resource pools.

[0289] Aspect 23: A method according to any one of Aspects 21 to 22, wherein the second control information indicates the one or more frequency hopping patterns, wherein each of the one or more frequency hopping patterns is associated with a single corresponding sub-resource pool in the multiple sub-resource pools.

[0290] Aspect 24: According to any one of Aspects 1 to 23, the method further includes: receiving third control information, the third control information including a set of parameters for sending a side link reference signal on a per-sub-resource pool basis, wherein the set of parameters indicates periodicity, the number of ports, a power offset relative to the channel, or any combination thereof.

[0291] Aspect 25: The method according to any one of aspects 1 to 24, wherein the second control information indicates a frequency gap between the multiple sub-resource pools, and the frequency gap is based on the capability of the method.

[0292] Aspect 26: The method according to any one of Aspects 1 to 25 further comprises: communicating a reservation request, the reservation request indicating one or more frequency hopping patterns to be applied to the sidelink reference signals sent or received in the multiple sub-resource pools.

[0293] Aspect 27: According to the method described in any one of Aspects 1 to 26, the method further includes: multiplexing the transmission of one or more side link reference signals with additional side link reference signals reserved for transmission over the multiple sub-resource pools, wherein the one or more side link reference signals are multiplexed with the additional side link reference signals by applying one or more frequency hopping patterns related to the multiple sub-resource pools.

[0294] Aspect 28: The method of aspect 27, wherein a frequency hopping pattern of the one or more frequency hopping patterns is associated with a source identifier, a destination identifier, a group common identifier, or an identifier indicated to the method.

[0295] Aspect 29: According to the method described in any one of Aspects 1 to 28, the method further includes: receiving third control information, the third control information including a set of parameters related to one or more CSI reports to be sent, and the value of the set of parameters is based on the number of sub-channels in the corresponding sub-resource pool in the multiple sub-resource pools.

[0296] Aspect 30: According to the method described in any one of Aspects 1 to 29, the method further includes: sending a MAC-CE, wherein the MAC-CE indicates the CSI for the corresponding sub-resource pool among the multiple sub-resource pools, and the MAC-CE includes a code point indicating that the CSI is related to a specific sub-resource pool among the multiple sub-resource pools.

[0297] Aspect 31: The method according to aspect 30, wherein the code point is included in a reserved bit field of the MAC-CE.

[0298] Aspect 32: A method according to any one of Aspects 30 to 31, wherein sending the MAC-CE includes: sending multiple sets of CSI for corresponding sub-resource pools in the multiple sub-resource pools via the MAC-CE, each set of CSI including corresponding CQI, corresponding RI or both.

[0299] Aspect 33: The method according to any one of aspects 1 to 32 further comprises: sending multiple CSI reports concurrently based on the capability of the method and the number of sub-channels or resources in each of the multiple sub-resource pools.

[0300] Aspect 34: A method according to Aspect 33, wherein sending the multiple CSI reports includes: sending a MAC-CE, the MAC-CE including a header and one or more bits indicating the CSI for each sub-resource pool in the multiple sub-resource pools, wherein the header indicates the multiple sub-resource pools for which the CSI is to be reported.

[0301] Aspect 35: A method for wireless communication, the method comprising: sending first control information, the first control information indicating a resource pool for side link communication between a second network node and a third network node, wherein the resource pool includes multiple resources; and sending second control information, the second control information indicating multiple sub-resource pools for the side link communication between the second network node and the third network node, wherein each sub-resource pool in the multiple sub-resource pools includes corresponding one or more resources of the multiple resources corresponding to the resource pool, wherein the corresponding one or more resources of each corresponding sub-resource pool in the multiple sub-resource pools are non-overlapping with other sub-resource pools in the multiple sub-resource pools, and wherein each corresponding sub-resource pool in the multiple sub-resource pools corresponds to at least one of the following: a corresponding set of channel types, a corresponding set of channel conditions, or a corresponding set of operating parameters.

[0302] Aspect 36: The method according to aspect 35, wherein the second control information indicates one or more differences between the plurality of sub-resource pools and the resource pool.

[0303] Aspect 37: A method according to any one of Aspects 35 to 36, wherein the second control information indicates a corresponding size of each sub-resource pool in the plurality of sub-resource pools, wherein the corresponding size of each sub-resource pool is based on the capability of the second network node.

[0304] Aspect 38: According to the method described in any one of Aspects 35 to 37, the method further includes: sending a resource grant in a DCI or SCI, wherein the resource grant schedules one or more transmissions in one or more sub-resource pools among the multiple sub-resource pools, wherein the resource grant is a dynamic grant or a configured grant.

[0305] Aspect 39: The method according to any one of aspects 35 to 38 further comprises: sending information indicating a change in activation status of at least one or more resources of each sub-resource pool in the plurality of sub-resource pools.

[0306] Aspect 40: According to the method described in any one of Aspects 35 to 39, the method further includes: sending a resource grant in a DCI, wherein the resource grant schedules one or more transmissions in one or more sub-resource pools among the multiple sub-resource pools, wherein the DCI includes a corresponding sub-resource pool indication for each of the one or more scheduled transmissions, and the corresponding sub-resource pool indication indicates one or more TDRAs or one or more FDRAs used for the corresponding transmission and at least one sub-resource pool among the multiple sub-resource pools.

[0307] Aspect 41: According to the method described in any one of Aspects 35 to 40, the method further includes: sending a DCI, wherein the DCI is configured to activate the corresponding one or more resources of each sub-resource pool in the multiple sub-resource pools, so that the number of activated resources of each sub-resource pool is less than a threshold amount, wherein the DCI indicates a resource pool index corresponding to the resource pool and one or more sub-resource pool indices corresponding to the activated resources of each sub-resource pool.

[0308] Aspect 42: According to the method described in any one of Aspects 35 to 41, the method further includes: sending control information, wherein the control information schedules at least two different sets of configuration grant transmissions across the multiple sub-resource pools, wherein the at least two different sets of configuration grant transmissions are associated with different TDRAs to prevent time domain overlap between the individual configuration grant transmissions in the different sets of configuration grant transmissions.

[0309] Aspect 43: According to any one of Aspects 35 to 42, the method further includes: sending third control information, the third control information including a set of parameters for sending a side link reference signal on a per sub-resource pool basis, wherein the set of parameters indicates periodicity, the number of ports, a power offset relative to the channel, or any combination thereof.

[0310] Aspect 44: The method according to any one of aspects 35 to 43, wherein the second control information indicates a frequency gap between the multiple sub-resource pools, and the frequency gap is based on the capability of the second network node.

[0311] Aspect 45: According to the method described in any one of Aspects 35 to 44, the method further includes: sending third control information, wherein the third control information includes a set of parameters related to one or more CSI reports to be sent, and the value of the set of parameters is based on the number of sub-channels in the corresponding sub-resource pool in the multiple sub-resource pools.

[0312] Aspect 46: According to any one of the methods of Aspects 35 to 45, the method further includes: receiving a MAC-CE, the MAC-CE indicating the CSI for the corresponding sub-resource pool in the multiple sub-resource pools, and the MAC-CE including a code point indicating that the CSI is related to a specific sub-resource pool in the multiple sub-resource pools.

[0313] Aspect 47: The method of aspect 46, wherein the code point is included in a reserved bit field of the MAC-CE.

[0314] Aspect 48: A method according to any one of Aspects 46 to 47, wherein receiving the MAC-CE includes: receiving multiple sets of CSI for corresponding sub-resource pools in the multiple sub-resource pools via the MAC-CE, each set of CSI including corresponding CQI, corresponding RI or both.

[0315] Aspect 49: The method according to any one of aspects 35 to 48, further comprising: concurrently receiving multiple CSI reports based on the capabilities of the method and the number of sub-channels or resources in each of the multiple sub-resource pools.

[0316] Aspect 50: A method according to Aspect 49, wherein receiving the multiple CSI reports includes: receiving a MAC-CE, the MAC-CE including a header and one or more bits indicating the CSI for each sub-resource pool in the multiple sub-resource pools, wherein the header indicates the multiple sub-resource pools for which the CSI is to be reported.

[0317] Aspect 51: An apparatus for wireless communication at a first network node, the apparatus comprising: a memory; and at least one processor coupled to the memory, wherein the at least one processor is configured to cause the apparatus to perform a method according to any one of aspects 1 to 34.

[0318] Aspect 52: An apparatus for wireless communication at a first network node, the apparatus comprising: at least one component for performing the method according to any one of aspects 1 to 34.

[0319] Aspect 53: A non-transitory computer-readable medium storing code for wireless communication at a first network node, the code comprising instructions executable by a processor to perform the method according to any one of aspects 1 to 34.

[0320] Aspect 54: An apparatus for wireless communication, the apparatus 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 a method according to any one of aspects 35 to 50.

[0321] Aspect 55: An apparatus for wireless communication, the apparatus comprising: at least one component for performing the method according to any one of aspects 35 to 50.

[0322] Aspect 56: A non-transitory computer-readable medium having stored thereon code for wireless communication, the code, when executed by a first network node, causing the first network node to perform the method according to any one of aspects 35 to 50.

[0323] The methods described herein describe possible implementations, and the operations and steps may be rearranged or otherwise modified, and other implementations are possible. Additionally, aspects from two or more methods may be combined.

[0324] Although aspects of LTE, LTE-A, LTE-A Pro, or NR systems may be described for example purposes, and LTE, LTE-A, LTE-A Pro, or NR terminology may be used throughout much of the description, the techniques described herein may also be applicable to networks other than LTE, LTE-A, LTE-A Pro, or NR networks. For example, the techniques described may be applicable to various other wireless communication systems, such as Ultra Mobile Broadband (UMB), Institute of Electrical and Electronics Engineers (IEEE) 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash-OFDM, and other systems and radio technologies not explicitly mentioned herein.

[0325] The information and signals described herein may be represented by any of a variety of different technologies and techniques. For example, data, instructions, commands, information, signals, bits, symbols, and chips referred to throughout the description may be represented by voltages, currents, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.

[0326] The various illustrative blocks and components described in conjunction with the disclosure herein may be implemented or performed using a general purpose processor, a DSP, an ASIC, a CPU, an 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. A general purpose processor may be a microprocessor, but in the alternative, the processor may be any processor, controller, microcontroller, or state machine. A processor may also be implemented as a combination of computing devices (e.g., a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors combined with a DSP core, or any other such configuration).

[0327] The functions described herein may be implemented using hardware, software executed by a processor, firmware, or any combination thereof. If implemented using software executed by a processor, the functions may be stored as one or more instructions or codes of a computer-readable medium, or sent using one or more instructions or codes of a computer-readable medium. Other examples and specific implementations are within the scope of this disclosure and the claims. For example, due to the nature of software, the functions described herein may be implemented using software executed by a processor, hardware, firmware, hard wiring, or a combination of any of these. Features that implement the functions may also be physically located at different locations, including being distributed so that various parts of the functions are implemented at different physical locations.

[0328] Computer readable medium includes both non-transient computer storage medium and communication medium, and this communication medium includes any medium that promotes computer program to be transferred from one location to another location.Non-transient storage medium can be any available medium that can be accessed by general or special-purpose computer.By way of example and not limitation, non-transient computer readable medium can include RAM, ROM, electrically erasable programmable ROM (EEPROM), flash memory, compact disc (CD) ROM or other optical disc storage device, magnetic disk storage device or other magnetic storage device or can be used for carrying or storing desired program code components and any other non-transient medium that can be accessed by general or special-purpose computer or general or special-purpose processor in the form of instruction or data structure.Moreover, any connection is appropriately referred to as computer readable medium.For example, if software is to be sent from website, server or other remote source using coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL) or wireless technology such as infrared, radio and microwave, then coaxial cable, fiber optic cable, twisted pair, DSL or wireless technology such as infrared, radio and microwave are included in the definition of computer readable medium. As used herein, disks and optical discs include CDs, laser discs, optical discs, digital versatile discs (DVDs), floppy disks, and Blu-ray discs. Magnetic disks can reproduce data magnetically, and optical discs can reproduce data optically using lasers. Combinations of the above are also included within the scope of computer-readable media.

[0329] As used herein, the term "or" is an inclusive "or" unless restrictive language is used with respect to listed alternatives. For example, reference to "X is based on A or B" should be interpreted to include within its scope X is based on A, X is based on B, and X is based on A and B. In this regard, reference to "X is based on A or B" means "at least one of A or B" or "one or more of A or B" because "or" is inclusive. Similarly, reference to "X is based on A, B, or C" should be interpreted to include within its scope X is based on A, X is based on B, X is based on C, X is based on A and B, X is based on A and C, X is based on B and C, and X is based on A, B, and C. In this regard, reference to "X is based on A, B, or C" means "at least one of A, B, or C" or "one or more of A, B, or C" because "or" is inclusive. As an example of restrictive language, a reference to "X is based only on one of A or B" should be interpreted to include within its scope X being based on A and X being based on B, but not including X being based on both A and B. Furthermore, as used herein, the phrase "based on" should not be interpreted as a reference to a closed set of information, one or more conditions, one or more factors, etc. In other words, the phrase "based on A" (where "A" can be information, a condition, a factor, etc.) should be interpreted as "based at least on A" unless specifically stated otherwise. Similarly, as used herein, the phrase "set" should be understood to include the possibility of a set having one member. That is, the phrase "set" should be understood in the same manner as "one or more" or "at least one."

[0330] The term "determining" encompasses a variety of actions, and thus, "determining" may include calculating, computing, processing, deriving, investigating, looking up (such as via looking up in a table, database, or other data structure), ascertaining, etc. Furthermore, "determining" may include receiving (e.g., receiving information), accessing (e.g., accessing data stored in a memory), etc. Furthermore, "determining" may include parsing, retrieving, selecting, choosing, establishing, and other such similar actions.

[0331] In the drawings, similar components or features may have the same reference label. In addition, various components of the same type may be distinguished by following the reference label with a dash and a second label to distinguish between similar components. If only the first reference label is used in the specification, the description can apply to any of the similar components having the same first reference label, regardless of the second reference label or other subsequent reference labels.

[0332] The description set forth herein in conjunction with the accompanying drawings describes example configurations and does not represent all examples that can be implemented or within the scope of the claims. The terms "aspect" or "example" used herein mean "serving as an aspect, example, instance, or illustration," rather than "preferred" or "having advantages over other aspects." The detailed description includes specific details to provide an understanding of the described technology. However, these technologies can be practiced without these specific details. In some instances, structures and devices are shown in block diagram form to avoid obscuring the concepts of the described examples.

[0333] The description herein is provided to enable one of ordinary skill in the art to make or use the present disclosure. Various modifications to the present disclosure will be apparent to those of ordinary skill in the art, and the general principles defined herein may be applied to other variations without departing from the scope of the present disclosure. Thus, the present disclosure is not limited to the examples and designs described herein, but should be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A first network node for wireless communication, the first network node comprising: Memory; as well as at least one processor coupled to the memory, wherein the at least one processor is configured to: receiving first control information indicating a resource pool for sidelink communication between the first network node and a second network node, wherein the resource pool includes a plurality of resources; receiving second control information indicating a plurality of sub-resource pools for the sidelink communication between the first network node and the second network node, wherein each sub-resource pool of the plurality of sub-resource pools includes respective one or more resources of the plurality of resources corresponding to the resource pool, wherein the respective one or more resources of each respective sub-resource pool of the plurality of sub-resource pools are non-overlapping with other sub-resource pools of the plurality of sub-resource pools, and wherein each respective sub-resource pool of the plurality of sub-resource pools corresponds to at least one of: a respective set of channel types, a respective set of channel conditions, or a respective set of operating parameters; and Communicating with the second network node is performed based on one or more sub-resource pools of the plurality of sub-resource pools. 2 . The first network node according to claim 1 , wherein the second control information indicates one or more differences between the plurality of sub-resource pools and the resource pool. 3 . The first network node of claim 1 , wherein the second control information indicates a respective size of each of the plurality of sub-resource pools, and wherein the respective size of each sub-resource pool is based on a capability of the first network node.

4. The first network node of claim 1 , wherein the at least one processor is configured to: Information indicating a change in a respective activation state of at least respective one or more resources of each sub-resource pool is transmitted in a common resource pool that is common to a plurality of network nodes including the first network node and the second network node.

5. The first network node of claim 4, wherein the common resource pool is a primary resource pool associated with a primary component carrier, a primary sub-resource pool within the primary resource pool associated with the primary component carrier, or a secondary resource pool associated with a secondary component carrier.

6. The first network node of claim 4, wherein the at least one processor is configured to: The changes in the respective activation states are applied based on respective confirmation information from one or more network nodes of the plurality of network nodes other than the first network node and the second network node. 7 . The first network node of claim 4 , wherein the information indicative of the change in the respective activation status indicates the respective change in activation status on a per sub-resource pool basis.

8. The first network node of claim 1 , wherein the at least one processor is configured to: A resource grant is received in downlink control information or sidelink control information, the resource grant scheduling one or more transmissions in one or more sub-resource pools of the plurality of sub-resource pools, wherein the resource grant is a dynamic grant or a configured grant.

9. The first network node of claim 8, wherein to receive the resource grant in the downlink control information or the sidelink control information, the at least one processor is configured to: Respective sidelink control information corresponding to each respective one of the one or more scheduled transmissions is received.

10. The first network node of claim 1 , wherein the at least one processor is configured to: A resource grant is sent in sidelink control information, the resource grant scheduling one or more transmissions in one or more sub-resource pools of the plurality of sub-resource pools, wherein the resource grant is a dynamic grant or a configured grant.

11. The first network node of claim 1 , wherein the at least one processor is configured to: Information indicating a change in an activation state of at least one or more resources of each of the plurality of sub-resource pools is received.

12. The first network node of claim 1 , wherein the at least one processor is configured to: A resource grant is received in downlink control information, the resource grant scheduling one or more transmissions in the one or more sub-resource pools, wherein the downlink control information includes, for each of the one or more scheduled transmissions, a corresponding sub-resource pool indication indicating one or more time-domain resource allocations or one or more frequency-domain resource allocations for the corresponding transmission and at least one sub-resource pool from the multiple sub-resource pools.

13. The first network node of claim 1 , wherein the at least one processor is configured to: Receive downlink control information, the downlink control information being configured to activate corresponding one or more resources of each of the multiple sub-resource pools so that the number of activated resources of each sub-resource pool is less than a threshold amount, wherein the downlink control information indicates a resource pool index corresponding to the resource pool and one or more sub-resource pool indices corresponding to the activated resources of each sub-resource pool.

14. The first network node according to claim 1, wherein: To communicate with the second network node, the at least one processor is configured to: A sidelink transmission is transmitted across at least one or more resources in the plurality of sub-resource pools, wherein the at least one or more resources in the plurality of sub-resource pools are aligned to facilitate coherent transmission of the sidelink communication or offset from one another to avoid overlap in time.

15. The first network node according to claim 1, wherein: To communicate with the second network node, the at least one processor is configured to: Sidelink transmissions are received across at least one or more resources in the plurality of sub-resource pools, wherein the at least one or more resources in the plurality of sub-resource pools are aligned to facilitate coherent transmission of the sidelink communications or offset from one another to avoid overlap in time.

16. The first network node according to claim 1, wherein: To communicate with the second network node, the at least one processor is configured to: One or more repetitions of data or one or more repetitions of a transport block are sent via different sub-resource pools of the plurality of sub-resource pools.

17. The first network node of claim 1 , wherein the at least one processor is configured to: Control information is received that schedules at least two different sets of configuration grant transmissions across the plurality of sub-resource pools, wherein the at least two different sets of configuration grant transmissions are associated with different time-domain resource allocations to prevent time-domain overlap between respective configuration grant transmissions in the different sets of configuration grant transmissions.

18. The first network node according to claim 1, wherein: To communicate with the second network node, the at least one processor is configured to: Communicating with the second network node in a first subset of the plurality of sub-pools of resources is different from a second subset of the plurality of sub-pools of resources, the second subset of the plurality of sub-pools of resources being allocated for use by network nodes having lower power or lower bandwidth relative to the first network node.

19. The first network node of claim 1 , wherein the corresponding set of channel types comprises a physical sidelink shared channel, a physical sidelink control channel, or a physical sidelink feedback channel, and the corresponding set of channel conditions comprises a number of subchannels, a subchannel size, or a starting resource block, and the corresponding set of operating parameters comprises parameters related to code block rate, modulation and coding scheme, sensing configuration, or power control.

20. The first network node of claim 1 , wherein the corresponding set of channel types comprises a sidelink reference signal channel type, and wherein: To communicate with the second network node, the at least one processor is configured to: One or more sidelink reference signals are sent in the plurality of sub-resource pools based on one or more frequency hopping patterns, wherein the plurality of sub-resource pools are sounded in a single time slot or across multiple time slots according to the one or more frequency hopping patterns.

21. The first network node of claim 1 , wherein the at least one processor is configured to: Receive third control information comprising a set of parameters for sidelink reference signal transmission on a per-sub-resource pool basis, wherein the set of parameters indicates periodicity, number of ports, power offset relative to a channel, or any combination thereof.

22. The first network node of claim 1, wherein the second control information indicates a frequency gap between the plurality of sub-resource pools, the frequency gap being based on a capability of the first network node.

23. The first network node of claim 1 , wherein the at least one processor is configured to: A reservation request is communicated, the reservation request indicating one or more frequency hopping patterns to be applied to sidelink reference signals transmitted or received in the plurality of sub-resource pools.

24. The first network node of claim 1 , wherein the at least one processor is configured to: The transmission of one or more sidelink reference signals is multiplexed with additional sidelink reference signals reserved for transmission over the multiple sub-resource pools, wherein the one or more sidelink reference signals are multiplexed with the additional sidelink reference signals by applying one or more frequency hopping patterns related to the multiple sub-resource pools.

25. The first network node of claim 1 , wherein the at least one processor is configured to: Third control information is received, the third control information including a set of parameters related to one or more channel state information reports to be sent, values ​​of the set of parameters being based on a number of subchannels in a corresponding sub-resource pool of the plurality of sub-resource pools.

26. The first network node of claim 1 , wherein the at least one processor is configured to: A medium access control control element is sent, the medium access control control element indicating channel state information of a corresponding sub-resource pool among the multiple sub-resource pools, the medium access control control element including a code point indicating that the channel state information is related to a specific sub-resource pool among the multiple sub-resource pools.

27. The first network node of claim 1 , wherein the at least one processor is configured to: Multiple channel state information reports are sent concurrently based on the capabilities of the first network node and the number of sub-channels or resources in each of the multiple sub-resource pools.

28. A method for wireless communication at a first network node, the method comprising: receiving first control information indicating a resource pool for sidelink communication between the method and a second network node, wherein the resource pool includes a plurality of resources; receiving second control information indicating a plurality of sub-resource pools for the sidelink communication between the first network node and the second network node, wherein each sub-resource pool of the plurality of sub-resource pools includes respective one or more resources of the plurality of resources corresponding to the resource pool, wherein the respective one or more resources of each respective sub-resource pool of the plurality of sub-resource pools are non-overlapping with other sub-resource pools of the plurality of sub-resource pools, and wherein each respective sub-resource pool of the plurality of sub-resource pools corresponds to at least one of: a respective set of channel types, a respective set of channel conditions, or a respective set of operating parameters; and Communicating with the second network node is performed based on one or more sub-resource pools of the plurality of sub-resource pools.

29. An apparatus for wireless communication at a first network node, the apparatus comprising: means for receiving first control information indicating a resource pool for sidelink communication between the first network node and a second network node, wherein the resource pool comprises a plurality of resources; means for receiving second control information indicating a plurality of sub-resource pools for the sidelink communication between the first network node and the second network node, wherein each sub-resource pool of the plurality of sub-resource pools includes a respective one or more resources of the plurality of resources corresponding to the resource pool, wherein the respective one or more resources of each respective sub-resource pool of the plurality of sub-resource pools are non-overlapping with other sub-resource pools of the plurality of sub-resource pools, and wherein each respective sub-resource pool of the plurality of sub-resource pools corresponds to at least one of: a respective set of channel types, a respective set of channel conditions, or a respective set of operating parameters; and Means for communicating with the second network node based on one or more sub-resource pools of the plurality of sub-resource pools.

30. A non-transitory computer-readable medium having stored thereon code for wireless communication, the code, when executed by a first network node, causing the first network node to: receiving first control information indicating a resource pool for sidelink communication between the first network node and a second network node, wherein the resource pool includes a plurality of resources; receiving second control information indicating a plurality of sub-resource pools for the sidelink communication between the first network node and the second network node, wherein each sub-resource pool of the plurality of sub-resource pools includes respective one or more resources of the plurality of resources corresponding to the resource pool, wherein the respective one or more resources of each respective sub-resource pool of the plurality of sub-resource pools are non-overlapping with other sub-resource pools of the plurality of sub-resource pools, and wherein each respective sub-resource pool of the plurality of sub-resource pools corresponds to at least one of: a respective set of channel types, a respective set of channel conditions, or a respective set of operating parameters; and Communicating with the second network node is performed based on one or more sub-resource pools of the plurality of sub-resource pools.

Images