Resource signaling techniques for multiple repetitions of uplink transmissions

Abstract

Methods, systems, and devices are described for wireless communication in which a user equipment (UE) may transmit one or more uplink communications to multiple transmit / receive points (TRPs), which may include multiple repetitions to each of the multiple TRPs. Transmission parameters for each repetition may be based on parameters such as the number of antenna ports, spatial domain filters or beams, rank or number of layers, or any combination thereof, determined from an indicated sounding reference signal (SRS) resource. The SRS resource may be selected from a set of SRS resources configured in the UE and indicated in control information that schedules the uplink communication. Multiple sets of SRS resources may be configured in the UE, and one or more indicators in the control information may be mapped to SRS resources in one or more of the sets of SRS resources.

Description

Priority claims

[0001] cross reference

[0001] This patent application claims the benefit of U.S. Provisional Patent Application No. 63 / 131,161, entitled "RESOURCE SIGNALING TECHNIQUES FOR MULTIPLE REPETITIONS OF UPLINK TRANSMISSIONS," filed December 28, 2020, by KHOSHNEVISAN et al., and U.S. Patent Application No. 17 / 538,562, entitled "RESOURCE SIGNALING TECHNIQUES FOR MULTIPLE REPETITIONS OF UPLINK TRANSMISSIONS," filed November 30, 2021, by KHOSHNEVISAN et al., each of which is assigned to the assignee of the present application. [Technical Field]

[0002] The following relates to wireless communications, including resource signaling techniques for multiple repetitions of uplink transmissions. [Background technology]

[0003] Wireless communication systems are widely deployed to provide various types of communication content, such as voice, video, packet data, messaging, and broadcasts. These systems may be capable of supporting 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), LTE-Advanced (LTE-A), or LTE-A Pro systems, and fifth-generation (5G) systems, sometimes referred to as New Radio (NR) systems. These systems may employ technologies such as code division multiple access (CDMA), time division multiple access (TDMA), frequency division multiple access (FDMA), orthogonal frequency division multiple access (OFDMA), or discrete Fourier transform spread orthogonal frequency division multiplexing (DFT-S-OFDM). A wireless multiple-access communication system may include one or more base stations or one or more network access nodes, each simultaneously supporting communication for multiple communication devices, sometimes known as user equipment (UE).

[0004]

[0004] Some wireless communication systems may support communication using one or more antenna arrays at different devices. For example, a network may communicate with a UE using one or more transmit / receive points (TRPs), where each TRP and UE may have one or more antenna arrays to form directional beams. Efficient communication between a UE and one or more TRPs can help improve network throughput, latency, and reliability, and therefore techniques for further improving efficient communication are desirable. Summary of the Invention

[0005]

[0005] Described techniques relate to improved methods, systems, devices, and apparatuses that support resource signaling techniques for multiple repetitions of uplink transmissions. Various aspects provide techniques for communication between a user equipment (UE) and multiple transmission / reception points (TRPs), in which the UE may transmit multiple repetitions of an uplink communication to one or more TRPs to improve the likelihood of successful reception of the uplink communication. In some cases, the UE may transmit the uplink communication based on parameters determined from sounding reference signal (SRS) resources (e.g., the number of antenna ports, a spatial domain filter or beam, a rank or number of layers, or any combination thereof). The SRS resources may be selected from a set of SRS resources configured in the UE, and the SRS resources may be indicated in control information provided to the UE. In some cases, multiple sets of SRS resources may be configured in the UE, and one or more indicators in the control information (e.g., downlink control information (DCI)) may be mapped to SRS resources from one or more of the sets of SRS resources.

[0006] In some cases, a base station or a TRP may transmit configuration information to a UE indicating whether a control information transmission (e.g., DCI) should include one or two resource indications. Based on the configuration information, the UE may receive the control information and determine one or two sets of SRS resources based on the one or two configured resource indications. The one or two sets of SRS resources may be associated with different repetitions of uplink communication, such as a first set of repetitions transmitted to a first TRP and a second set of repetitions transmitted to a second TRP. In some cases, a UE may be configured to receive control information including two resource indications and may identify specific SRS resources within the one or two sets of SRS resources based on associated indicators (e.g., based on a mapping between each indicator and an SRS resource within the associated set of SRS resources). In other cases, a UE may be configured to receive control information including one resource indication and may identify specific SRS resources within the one or two sets of SRS resources based on the one resource indication (e.g., based on a mapping between an indicator and an SRS resource within each set of SRS resources).

[0007] A method for wireless communication in a UE is described. The method may include receiving, from a base station, SRS configuration information indicating whether control information granting an uplink grant to the UE should include one resource indicator for SRS resources or two resource indicators for the SRS resources; receiving first control information scheduling two or more repetitions of a first uplink communication and indicating an association between the two or more repetitions of the first uplink communication with either a first set of SRS resources, a second set of SRS resources, or both; determining a first set of uplink transmission parameters for the first set of repetitions of the first uplink communication and a second set of uplink transmission parameters for the second set of repetitions of the first uplink communication based on the one or two resource indicators in the first control information and an indication of one or both of the first set of SRS resources or the second set of SRS resources associated with the two or more repetitions of the first uplink communication; and transmitting the first set of repetitions of the first uplink communication using the first set of uplink transmission parameters and transmitting the second set of repetitions of the first uplink communication using the second set of uplink transmission parameters.

[0008] An apparatus for wireless communications in a UE is described. The apparatus may include a processor, a memory in electronic communication with the processor, and instructions stored in the memory. The instructions may include: receiving, from a base station, SRS configuration information indicating whether control information granting an uplink grant to the UE should include one resource indicator for SRS resources or two resource indicators for SRS resources; receiving first control information scheduling two or more repetitions of a first uplink communication and indicating an association between the two or more repetitions of the first uplink communication with either a first set of SRS resources, a second set of SRS resources, or both; determining a first set of uplink transmission parameters for the first set of repetitions of the first uplink communication and a second set of uplink transmission parameters for the second set of repetitions of the first uplink communication based on the one or two resource indicators in the first control information and the indicated one or both of the first set of SRS resources or the second set of SRS resources associated with the two or more repetitions of the first uplink communication; The method may be executable by the processor to cause the apparatus to transmit a first set of repetitions of the first uplink communication using a first set of uplink transmission parameters, and to transmit a second set of repetitions of the first uplink communication using a second set of uplink transmission parameters.

[0009] Another apparatus for wireless communication in a UE is described. The apparatus may include means for receiving, from a base station, SRS configuration information indicating whether control information granting an uplink grant to the UE should include one resource indicator for SRS resources or two resource indicators for the SRS resources; means for receiving first control information scheduling two or more repetitions of a first uplink communication and indicating an association between the two or more repetitions of the first uplink communication with either a first set of SRS resources, a second set of SRS resources, or both; means for determining a first set of uplink transmission parameters for the first set of repetitions of the first uplink communication and a second set of uplink transmission parameters for the second set of repetitions of the first uplink communication based on the one or two resource indicators in the first control information and an indication of one or both of the first set of SRS resources or the second set of SRS resources associated with the two or more repetitions of the first uplink communication; and means for transmitting the first set of repetitions of the first uplink communication using the first set of uplink transmission parameters and transmitting the second set of repetitions of the first uplink communication using the second set of uplink transmission parameters.

[0010] A non-transitory computer-readable medium storing codes for wireless communication in a UE is described, the codes including: receiving, from a base station, SRS configuration information indicating whether control information granting an uplink grant to the UE should include one resource indicator for SRS resources or two resource indicators for SRS resources; receiving first control information scheduling two or more repetitions of a first uplink communication and indicating an association between the two or more repetitions of the first uplink communication with either a first set of SRS resources, a second set of SRS resources, or both; and associating the one or two resource indicators in the first control information with the two or more repetitions of the first uplink communication. The method may include instructions executable by a processor to determine a first set of uplink transmission parameters for a first set of repetitions of a first uplink communication and a second set of uplink transmission parameters for a second set of repetitions of the first uplink communication based on an indicated one or both of the associated first set of SRS resources or the second set of SRS resources, and to transmit the first set of repetitions of the first uplink communication using the first set of uplink transmission parameters and to transmit the second set of repetitions of the first uplink communication using the second set of uplink transmission parameters.

[0011]

[0011] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, a first set of SRS resources is associated with a first set of repetitions of a first uplink communication, and a second set of SRS resources is associated with a second set of repetitions of the first uplink communication, wherein the first set of repetitions of the first uplink communication are transmitted to a first TRP, and the second set of repetitions of the first uplink communication are transmitted to a second TRP.

[0012]

[0012] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the first set of repetitions of the first uplink communication and the second set of repetitions of the first uplink communication may be codebook-based or non-codebook-based physical uplink shared channel transmissions. In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, receiving the first control information may further include operations, features, means, or instructions for decoding a first resource indicator in the first control information that provides a first SRS resource of the first set of SRS resources, and decoding a second resource indicator in the first control information that provides a second SRS resource of the second set of SRS resources.

[0013]

[0013] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the SRS configuration information indicates that the first control information should include two resource indicators for SRS resources, and the methods, apparatus, and non-transitory computer-readable media may further include operations, features, means, or instructions for identifying that the first control information indicates that a single SRS resource set is associated with the first uplink communication, determining both a first set of uplink transmission parameters and a second set of uplink transmission parameters based on the first resource indicator in the first control information, and ignoring the second resource indicator in the first control information.

[0014]

[0014] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the SRS configuration information indicates that the first control information should include two resource indicators for SRS resources, and the methods, apparatus, and non-transitory computer-readable media may further include operations, features, means, or instructions for identifying that the first control information indicates that two SRS resource sets are associated with the first uplink communication, determining a first set of uplink transmission parameters based on a first resource indicator of the two resource indicators in the first control information, and determining a second set of uplink transmission parameters based on a second resource indicator of the two resource indicators in the first control information.

[0015]

[0015] In some examples of the methods, devices, and non-transitory computer-readable media described in this specification, the SRS configuration information indicates that the first control information should include a single resource indicator for the SRS resource, and wherein both the first set of uplink transmission parameters and the second set of uplink transmission parameters are determined based on the single resource indicator in the first control information.

[0016]

[0016] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may further include operations, features, means, or instructions for identifying that the first control information indicates that a single SRS resource set is associated with the first uplink communication, and determining both a first set of uplink transmission parameters and a second set of uplink transmission parameters based on the single resource indicator in the first control information and the single SRS resource set.

[0017]

[0017] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may further include operations, features, means, or instructions for: identifying that the first control information indicates that two SRS resource sets are associated with the first uplink communication; determining a first set of uplink transmission parameters based on the single resource indicator in the first control information and a first mapping between the single resource indicator and the SRS resources of the first SRS resource set; and determining a second set of uplink transmission parameters based on the single resource indicator in the first control information and a second mapping between the single resource indicator and the SRS resources of the second SRS resource set.

[0018]

[0018] In some examples of the methods, apparatus, and non-transitory computer-readable media described in this specification, the SRS configuration information separately configures two or more different control information formats to include one resource indicator for an SRS resource or two resource indicators for an SRS resource.

[0019]

[0019] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the first set of repetitions of the first uplink communication and the second set of repetitions of the first uplink communication are codebook-based physical uplink shared channel transmissions, and one SRS resource in each set of SRS resources is indicated per codebook-based resource indicator, or the first set of repetitions of the first uplink communication and the second set of repetitions of the first uplink communication are non-codebook-based physical uplink shared channel transmissions, and one or more SRS resources in each set of SRS resources are indicated per non-codebook-based resource indicator.

[0020]

[0020] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the first set of repetitions of the first uplink communication and the second set of repetitions of the first uplink communication are codebook-based physical uplink shared channel transmissions, and the SRS configuration information indicates that the first control information should include two resource indicators for SRS resources, where each of the two resource indicators is mapped to an SRS resource in an associated set of SRS resources having the same number of antenna ports.

[0021]

[0021] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the first set of repetitions of the first uplink communication and the second set of repetitions of the first uplink communication are codebook-based physical uplink shared channel transmissions, and the SRS configuration information indicates that the first control information should include two resource indicators for SRS resources, where the i-th configured SRS resource of the first SRS resource set has the same number of antenna ports as the i-th configured SRS resource of the second SRS resource set.

[0022]

[0022] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the first set of repetitions of the first uplink communication and the second set of repetitions of the first uplink communication are non-codebook-based physical uplink shared channel transmissions, and the SRS configuration information indicates that the first control information should include two resource indicators for SRS resources, where a first amount of the indicated SRS resources in the first set of SRS resources is the same as a second amount of the indicated SRS resources in the second set of SRS resources.

[0023]

[0023] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the SRS configuration information indicates that the first control information should include a single resource indicator for SRS resources in the first set of SRS resources and the second set of SRS resources, and the first set of SRS resources and the second set of SRS resources have the same number of SRS resources, or the number of bits in the single resource indicator is determined based on the maximum number of SRS resources in the first set of SRS resources or the second set of SRS resources.

[0024]

[0024] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, receiving the first control information may include operations, features, means, or instructions for identifying a two-bit field in the first control information indicating whether the first uplink communication should use only the first set of SRS resources, only the second set of SRS resources, or both the first set of SRS resources and the second set of SRS resources, and determining which sets of repetitions of the first uplink communication should use the first set of SRS resources and which other sets of repetitions should use the second set of SRS resources.

[0025]

[0025] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, receiving the first control information may include operations, features, means, or instructions for identifying within the first control information a single bit having a first bit value indicating that the first uplink communication should use one of the first set of SRS resources or the second set of SRS resources, or having a second bit value indicating that the first uplink communication should use both the first set of SRS resources and the second set of SRS resources.

[0026] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the first bit value provides a predetermined indication that the first uplink communication should use the first set of SRS resources, or the first bit value is configured by the SRS configuration information to indicate that the first uplink communication should use the first set of SRS resources, or the first bit value indicates that a different information field in the first control information provides an indication that the first uplink communication should use either the first set of SRS resources or the second set of SRS resources. In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the indication that one of the first set of SRS resources or the second set of SRS resources is unused is provided by a reserved value of a resource indication of the associated set of SRS resources.

[0027] A method for wireless communication in a base station is described. The method may include: transmitting, to the UE, SRS configuration information indicating whether control information granting an uplink grant to the UE should include one resource indicator for the SRS resources or two resource indicators for the SRS resources; transmitting, to the UE, first control information scheduling two or more repetitions of a first uplink communication and indicating an association between the two or more repetitions of the first uplink communication with either a first set of SRS resources, a second set of SRS resources, or both; determining a first set of uplink transmission parameters for the first set of repetitions of the first uplink communication and a second set of uplink transmission parameters for the second set of repetitions of the first uplink communication based on the one or two resource indicators in the first control information and an indication of one or both of the first set of SRS resources or the second set of SRS resources associated with the two or more repetitions of the first uplink communication; and receiving the first set of repetitions of the first uplink communication using the first set of uplink transmission parameters and receiving the second set of repetitions of the first uplink communication using the second set of uplink transmission parameters.

[0028] An apparatus for wireless communication in a base station is described. The apparatus may include a processor, a memory in electronic communication with the processor, and instructions stored in the memory. The instructions may include: transmitting, to a UE, SRS configuration information indicating whether control information granting an uplink grant to the UE should include one resource indicator for SRS resources or two resource indicators for SRS resources; transmitting, to the UE, first control information scheduling two or more repetitions of a first uplink communication and indicating an association between the two or more repetitions of the first uplink communication with either a first set of SRS resources, a second set of SRS resources, or both; and transmitting, to the UE, first control information indicating an association between the one or two resource indicators in the first control information and the two or more repetitions of the first uplink communication. The method may be executable by the processor to cause the apparatus to: determine a first set of uplink transmission parameters for the first set of repetitions of the first uplink communication and a second set of uplink transmission parameters for the second set of repetitions of the first uplink communication based on an indicated one or both of the associated first set of SRS resources or the second set of SRS resources; receive the first set of repetitions of the first uplink communication using the first set of uplink transmission parameters; and receive the second set of repetitions of the first uplink communication using the second set of uplink transmission parameters.

[0029] Another apparatus for wireless communication at a base station is described. The apparatus may include means for transmitting, to the UE, SRS configuration information indicating whether control information granting an uplink grant to the UE should include one resource indicator for SRS resources or two resource indicators for the SRS resources; means for transmitting, to the UE, first control information scheduling two or more repetitions of a first uplink communication and indicating an association between the two or more repetitions of the first uplink communication with either a first set of SRS resources, a second set of SRS resources, or both; means for determining a first set of uplink transmission parameters for the first set of repetitions of the first uplink communication and a second set of uplink transmission parameters for the second set of repetitions of the first uplink communication based on the one or two resource indicators in the first control information and an indication of one or both of the first set of SRS resources or the second set of SRS resources associated with the two or more repetitions of the first uplink communication; and means for receiving the first set of repetitions of the first uplink communication using the first set of uplink transmission parameters and receiving the second set of repetitions of the first uplink communication using the second set of uplink transmission parameters.

[0030] A non-transitory computer-readable medium storing codes for wireless communications in a base station is described, the codes including: transmitting, to a UE, SRS configuration information indicating whether control information granting an uplink grant to the UE should include one resource indicator for SRS resources or two resource indicators for SRS resources; transmitting, to the UE, first control information scheduling two or more repetitions of a first uplink communication and indicating an association between the two or more repetitions of the first uplink communication with either a first set of SRS resources, a second set of SRS resources, or both; and transmitting, to the UE, first control information indicating an association between the one or two resource indicators in the first control information and the two or more repetitions of the first uplink communication. and receiving the first set of repetitions of the first uplink communication using the first set of uplink transmission parameters and the second set of uplink transmission parameters for the second set of repetitions of the first uplink communication based on an indicated one or both of the first set of SRS resources or the second set of SRS resources associated with the first uplink communication.

[0031] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, a first set of SRS resources is associated with a first set of repetitions of a first uplink communication, and a second set of SRS resources is associated with a second set of repetitions of the first uplink communication, where the first set of repetitions of the first uplink communication are transmitted to a first TRP, and the second set of repetitions of the first uplink communication are transmitted to a second TRP. In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the first set of repetitions of the first uplink communication and the second set of repetitions of the first uplink communication are codebook-based or non-codebook-based physical uplink shared channel transmissions.

[0032]

[0032] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, transmitting the first control information may include operations, features, means, or instructions for transmitting a first resource indicator in the first control information providing a first SRS resource of a first set of SRS resources, and transmitting a second resource indicator in the first control information providing a second SRS resource of a second set of SRS resources.

[0033]

[0033] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the SRS configuration information indicates that the first control information should include two resource indicators for SRS resources, the first control information indicates that a single SRS resource set is associated with the first uplink communication, and both the first set of uplink transmission parameters and the second set of uplink transmission parameters are based on the first resource indicator in the first control information, regardless of the value of the second resource indicator in the first control information.

[0034]

[0034] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the SRS configuration information indicates that the first control information should include two resource indicators for SRS resources, and the methods, apparatus, and non-transitory computer-readable media may further include operations, features, means, or instructions for transmitting in the first control information an indication that two SRS resource sets are associated with the first uplink communication, wherein a first set of uplink transmission parameters is based on a first resource indicator of the two resource indicators in the first control information, and a second set of uplink transmission parameters is based on a second resource indicator of the two resource indicators in the first control information.

[0035]

[0035] In some examples of the methods, devices, and non-transitory computer-readable media described in this specification, the SRS configuration information indicates that the first control information should include a single resource indicator for the SRS resource, and wherein both the first set of uplink transmission parameters and the second set of uplink transmission parameters are determined based on the single resource indicator in the first control information.

[0036]

[0036] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may further include operations, features, means, or instructions for transmitting an indication in the first control information that a single SRS resource set is associated with the first uplink communication, wherein both the first set of uplink transmission parameters and the second set of uplink transmission parameters are based on the single resource indicator and the single SRS resource set in the first control information.

[0037] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may further include operations, features, means, or instructions for transmitting, in the first control information, an indication that two SRS resource sets are associated with the first uplink communication, where the first set of uplink transmission parameters is based on a single resource indicator in the first control information and a first mapping between the single resource indicator and the SRS resources of the first SRS resource set, and the second set of uplink transmission parameters is based on a single resource indicator in the first control information and a second mapping between the single resource indicator and the SRS resources of the second SRS resource set. In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the SRS configuration information separately configures two or more different control information formats to include one resource indicator for the SRS resources or two resource indicators for the SRS resources.

[0038]

[0038] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the first set of repetitions of the first uplink communication and the second set of repetitions of the first uplink communication are codebook-based physical uplink shared channel transmissions, and one SRS resource in each set of SRS resources is indicated per codebook-based resource indicator, or the first set of repetitions of the first uplink communication and the second set of repetitions of the first uplink communication are non-codebook-based physical uplink shared channel transmissions, and one or more SRS resources in each set of SRS resources are indicated per non-codebook-based resource indicator.

[0039]

[0039] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the first set of repetitions of the first uplink communication and the second set of repetitions of the first uplink communication are codebook-based physical uplink shared channel transmissions, and the SRS configuration information indicates that the first control information should include two resource indicators for SRS resources, where each of the two resource indicators is mapped to an SRS resource in an associated set of SRS resources having the same number of antenna ports.

[0040]

[0040] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the first set of repetitions of the first uplink communication and the second set of repetitions of the first uplink communication are codebook-based physical uplink shared channel transmissions, and the SRS configuration information indicates that the first control information should include two resource indicators for SRS resources, where the i-th configured SRS resource of the first SRS resource set has the same number of antenna ports as the i-th configured SRS resource of the second SRS resource set.

[0041]

[0041] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the first set of repetitions of the first uplink communication and the second set of repetitions of the first uplink communication are non-codebook-based physical uplink shared channel transmissions, and the SRS configuration information indicates that the first control information should include two resource indicators for SRS resources, where a first amount of the indicated SRS resources in the first set of SRS resources is the same as a second amount of the indicated SRS resources in the second set of SRS resources.

[0042]

[0042] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the SRS configuration information indicates that the first control information should include a single resource indicator for SRS resources within the first set of SRS resources and the second set of SRS resources, and the first set of SRS resources and the second set of SRS resources have the same number of SRS resources, or the number of bits in the single resource indicator is determined based on the maximum number of SRS resources in the first set of SRS resources or the second set of SRS resources.

[0043]

[0043] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, transmitting the first control information may include operations, features, means, or instructions for transmitting a two-bit field in the first control information indicating whether the first uplink communication should use only the first set of SRS resources, should use only the second set of SRS resources, or that the UE should use both the first set of SRS resources and the second set of SRS resources and determine which set of repetitions of the first uplink communication should use the first set of SRS resources and that the other set of repetitions should use the second set of SRS resources.

[0044]

[0044] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, transmitting the first control information may include operations, features, means, or instructions for transmitting within the first control information a single bit having a first bit value indicating that the first uplink communication should use one of the first set of SRS resources or the second set of SRS resources, or having a second bit value indicating that the first uplink communication should use both the first set of SRS resources and the second set of SRS resources.

[0045] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the first bit value provides a predetermined indication that the first uplink communication should use the first set of SRS resources, or the first bit value is configured in the SRS configuration information to indicate that the first uplink communication should use the first set of SRS resources, or the first bit value indicates that a different information field in the first control information provides an indication that the first uplink communication should use either the first set of SRS resources or the second set of SRS resources. In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the indication that one of the first set of SRS resources or the second set of SRS resources is unused may be provided by a reserved value of a resource indication of the associated set of SRS resources. [Brief explanation of the drawings]

[0046] [Figure 1]

[0046] FIG. 1 illustrates an example of a wireless communication system that supports resource signaling techniques for multiple repetitions of uplink transmissions, according to aspects of the present disclosure. [Figure 2]

[0047] FIG. 1 illustrates an example of a portion of a wireless communication system with multiple transmit / receive points (TRPs) supporting resource signaling techniques for multiple repetitions of uplink transmission, according to aspects of the present disclosure. [Figure 3]

[0048] FIG. 1 illustrates an example of control and shared channel communication supporting resource signaling techniques for multiple repetitions of uplink transmissions, according to aspects of the present disclosure. [Figure 4]

[0049] 10A-10C illustrate example control information with multiple resource indicators supporting a resource signaling technique for multiple repetitions of an uplink transmission, according to aspects of the present disclosure. [Figure 5]

[0050] 10A-10C illustrate example control information with a single resource indicator supporting resource signaling techniques for multiple repetitions of uplink transmission, according to aspects of the present disclosure. [Figure 6]

[0051] FIG. 1 illustrates an example of a process flow for supporting resource signaling techniques for multiple repetitions of uplink transmission, according to aspects of the present disclosure. [Figure 7]

[0052] 1 is a block diagram of a device that supports resource signaling techniques for multiple repetitions of uplink transmission, according to an aspect of the present disclosure. [Figure 8] 1 is a block diagram of a device that supports resource signaling techniques for multiple repetitions of uplink transmission, according to an aspect of the present disclosure. [Figure 9]

[0053] 1 is a block diagram of a communications manager supporting resource signaling techniques for multiple repetitions of uplink transmissions, according to an aspect of the disclosure. [Figure 10]

[0054] FIG. 1 illustrates a diagram of a system including a device that supports resource signaling techniques for multiple repetitions of an uplink transmission, according to aspects of the present disclosure. [Figure 11]

[0055] 1 is a block diagram of a device that supports resource signaling techniques for multiple repetitions of uplink transmission, according to an aspect of the present disclosure. [Figure 12] 1 is a block diagram of a device that supports resource signaling techniques for multiple repetitions of uplink transmission, according to an aspect of the present disclosure. [Figure 13]

[0056] 1 is a block diagram of a communications manager supporting resource signaling techniques for multiple repetitions of uplink transmissions, according to an aspect of the disclosure. [Figure 14]

[0057] FIG. 1 illustrates a diagram of a system including a device that supports resource signaling techniques for multiple repetitions of an uplink transmission, according to aspects of the present disclosure. [Figure 15]

[0058] 10 is a flowchart illustrating a method for supporting resource signaling techniques for multiple repetitions of uplink transmission, according to an aspect of the present disclosure. [Figure 16] 10 is a flowchart illustrating a method for supporting resource signaling techniques for multiple repetitions of uplink transmission, according to an aspect of the present disclosure. [Figure 17] 10 is a flowchart illustrating a method for supporting resource signaling techniques for multiple repetitions of uplink transmission, according to an aspect of the present disclosure. [Figure 18] 10 is a flowchart illustrating a method for supporting resource signaling techniques for multiple repetitions of uplink transmission, according to an aspect of the present disclosure. [Figure 19] 10 is a flowchart illustrating a method for supporting resource signaling techniques for multiple repetitions of uplink transmission, according to an aspect of the present disclosure. [Figure 20] 10 is a flowchart illustrating a method for supporting resource signaling techniques for multiple repetitions of uplink transmission, according to an aspect of the present disclosure. [Figure 21] 10 is a flowchart illustrating a method for supporting resource signaling techniques for multiple repetitions of uplink transmission, according to an aspect of the present disclosure. [Figure 22] 10 is a flowchart illustrating a method for supporting resource signaling techniques for multiple repetitions of uplink transmission, according to an aspect of the present disclosure. [Figure 23] 10 is a flowchart illustrating a method for supporting resource signaling techniques for multiple repetitions of uplink transmission, according to an aspect of the present disclosure. [Figure 24] 10 is a flowchart illustrating a method for supporting resource signaling techniques for multiple repetitions of uplink transmission, according to an aspect of the present disclosure. DETAILED DESCRIPTION OF THE INVENTION

[0047]

[0059] In some wireless communication systems, a network may communicate with a user equipment (UE) using one or more transmit / receive points (TRPs). For example, the network may communicate with a UE using a single TRP at a base station, multiple TRPs at the same base station, or multiple TRPs across multiple base stations. In such systems, the transmission parameters of each device (e.g., each UE, each TRP, each base station) may vary across the system (e.g., due to different operating frequencies, different beams, different numbers of antenna ports, etc.), and thus separate parameters may be indicated for communications with different TRPs. For example, in a multi-TRP system, two or more TRPs may coordinate and configure a UE to transmit multiple sets of repetitions of an uplink communication, where one set of repetitions is intended for a first TRP and a different set of repetitions is intended for a second TRP. Such techniques may improve the likelihood that at least one of the TRPs will successfully receive the uplink communication and, therefore, improve the reliability of the communication. However, when uplink transmissions to different TRPs have different transmission parameters, flexibility in providing indications of the different transmission parameters may be desired to provide sufficient information to the UE about the different sets of communication repetitions. Existing configuration and control information techniques may, in some cases, not provide sufficient information about the different sets of uplink communication repetitions. Various aspects of the present disclosure provide enhanced techniques that enable flexible and efficient signaling of configuration and control information related to multiple TRPs.

[0048]

[0060] In some cases, the UE may transmit uplink communications based on parameters determined from sounding reference signal (SRS) resources (e.g., the number of antenna ports, a spatial domain filter or beam, a rank or number of layers, or any combination thereof). The SRS resources may be selected from a set of SRS resources configured in the UE and may be indicated in control information provided to the UE. In some cases, multiple sets of SRS resources may be configured in the UE, and one or more indicators in the control information (e.g., downlink control information (DCI)) may be mapped to SRS resources among one or more of the sets of SRS resources.

[0049]

[0061] In some deployments, the SRS resource may be used to indicate uplink shared channel (e.g., physical uplink shared channel (PUSCH)) transmission parameters as well as SRS transmission parameters. In some cases, two types of PUSCH transmissions are supported: codebook and non-codebook PUSCH transmissions. In codebook-based transmissions, a UE may be configured with one SRS resource set with "use" set to "codebook." A maximum of four SRS resources in the SRS resource set may be configured for the UE, and each SRS resource may be configured (e.g., via radio resource control (RRC) signaling) with a number of ports (e.g., nrofSRS-Ports). The SRS resource indicator (SRI) field in the DCI scheduling the PUSCH transmission may indicate one SRS resource. In such cases, the number of ports configured for the indicated SRS resource determines the number of antenna ports for the PUSCH, and the PUSCH is transmitted using the same spatial domain filter (e.g., beam) as the indicated SRS resource. Furthermore, for such codebook PUSCH transmission, the number of transmission layers (rank) for the scheduled PUSCH and the transmitted precoder matrix indicator (TPMI) may be determined from separate DCI fields (e.g., "Number of Precoding Information and Layers" fields). For example, if two TMPIs are indicated, the same number of transmission layers may apply to the two TMPIs. The SRI may include a bit field that maps to an index of a configured SRS resource in an SRS resource set, where the size of the bit field is based on the number of configured SRS resources in the SRS resource set.

[0050]

[0062] For non-codebook-based uplink transmission, a UE may be configured with one SRS resource set with "Use" set to "Non-Codebook." In such a case, a maximum of four SRS resources in the SRS resource set may be configured for the UE, with each SRS resource having one port. The SRI field in the uplink DCI (e.g., scheduling a PUSCH) indicates one or more SRS resources, and the number of indicated SRS resources determines the rank (e.g., number of layers) for the scheduled PUSCH. PUSCH communication is transmitted using the same precoder and spatial domain filter (e.g., beam) as the indicated SRS resource. The SRI may include a bit field that maps to the index of the configured SRS resource in the SRS resource set, where the size of the bit field is based on the number of configured SRS resources in the SRS resource set and the number of layers of the PUSCH transmission.

[0051]

[0063] When multiple repetitions of an uplink communication are transmitted to multiple TRPs, in some examples, it may be useful to configure multiple SRS resource sets, which may provide additional options for uplink transmission parameters for the multiple repetitions. For example, if a first link between a UE and a first TRP is blocked, the first repetition of the uplink transmission to the first TRP may not be successfully received. However, if a second link between the UE and a second TRP is not blocked, the second repetition of the uplink transmission to the second TRP may be successfully received and decoded. Such techniques may therefore increase communication diversity, thereby improving reliability and efficiency when one or more links may experience relatively poor channel conditions. In some cases, different PUSCH transmission opportunities (i.e., repetitions) corresponding to the same transport block (TB) are transmitted in different slots or minislots, and the number of repetitions may be configured (e.g., via RRC signaling) or dynamically indicated (e.g., in a DCI scheduling the uplink communication, such as in a time domain resource allocation (TDRA) field).

[0052]

[0064] In existing deployments, when all of the repetitions are transmitted using the same beam (e.g., the SRI field of the DCI applies to all repetitions), and different PUSCH repetitions are to be received at different TRPs, panels, antennas, or any combination thereof at the base station, such the same beam for all repetitions may not be suitable for reception at each of the different TRPs, panels, antennas, or any combination thereof. To provide different repetitions to be transmitted using different beams, in some cases, multiple SRS resource sets may be configured such that different repetitions may use uplink transmission parameters associated with different SRS resources in different SRS resource sets. Furthermore, in some cases, SRS resources within one SRS resource set may be sufficient to indicate suitable uplink transmission parameters, and various aspects of the present disclosure provide flexibility in indicating one or more SRIs and in mapping the SRIs to SRS resources from one or more SRS resource sets. Such techniques may be used for codebook or non-codebook-based uplink communications.

[0053]

[0065] According to the techniques described herein, a base station or TRP may configure multiple SRS resource sets and transmit configuration information to a UE indicating whether a control information transmission (e.g., DCI) should include one or two resource indications. Based on the configuration information, the UE may receive control information and determine one or two sets of SRS resources based on the configured resource indications. The one or two sets of SRS resources may be associated with different repetitions of uplink communication, such as a first set of repetitions transmitted to a first TRP and a second set of repetitions transmitted to a second TRP. In some cases, the UE may be configured to receive control information including two resource indications and may identify specific SRS resources within the one or two sets of SRS resources based on associated indicators (e.g., based on a mapping between each indicator and an SRS resource among the associated set of SRS resources). In other cases, the UE may be configured to receive control information including one resource indication and may identify a particular SRS resource within one or two sets of SRS resources based on the one resource indication (e.g., based on a mapping between an indicator and an SRS resource within each set of SRS resources).

[0054]

[0066] Aspects of the present disclosure are initially described in the context of a wireless communication system, and are further illustrated by and described with reference to SRS resources for multiple repetitions, process flow diagrams, apparatus diagrams, system diagrams, and flowcharts relating to resource signaling techniques for multiple repetitions of uplink transmissions.

[0055]

[0067] 1 illustrates an example of a wireless communication system 100 supporting resource signaling techniques for multiple repetitions of uplink transmissions in accordance with aspects of the present disclosure. The wireless communication system 100 may include one or more base stations 105, one or more UEs 115, and a core network 130. In some examples, the wireless communication system 100 may be a Long Term Evolution (LTE) network, an LTE-Advanced (LTE-A) network, an LTE-A Pro network, or a New Radio (NR) network. In some examples, the wireless communication system 100 may support enhanced broadband communications, ultra-reliable (e.g., mission-critical) communications, low-latency communications, communications with low-cost and low-complexity devices, or any combination thereof.

[0056]

[0068] The base stations 105 may be dispersed throughout a geographic area to form the wireless communication system 100 and may be devices of different types or with different capabilities. The base stations 105 and the UEs 115 may communicate wirelessly via one or more communication links 125. Each base station 105 may provide a coverage area 110 over which the UEs 115 and the base station 105 may establish one or more communication links 125. The coverage area 110 may be an example of a geographic area over which the base stations 105 and the UEs 115 may support communication of signals according to one or more radio access technologies.

[0057]

[0069] The UEs 115 may be dispersed throughout the coverage area 110 of the wireless communication system 100, and each UE 115 may be fixed, mobile, or both at different times. The UEs 115 may be devices of different forms or with different capabilities. Some example UEs 115 are shown in FIG. 1. The UEs 115 described herein may be able to communicate with various types of devices, such as other UEs 115, base stations 105, or network equipment (e.g., core network nodes, relay devices, integrated access and backhaul (IAB) nodes, or other network equipment), as shown in FIG. 1.

[0058]

[0070] The base stations 105 may communicate with the core network 130, with each other, or both. For example, the base stations 105 may interface with the core network 130 through one or more backhaul links 120 (e.g., via an S1, N2, N3, or other interface). The base stations 105 may communicate with each other over the backhaul links 120 (e.g., via an X2, Xn, or other interface) either directly (e.g., directly between the base stations 105) or indirectly (e.g., via the core network 130), or both. In some examples, the backhaul links 120 may be or include one or more wireless links.

[0059]

[0071] One or more of the base stations 105 described herein may include or be referred to by those skilled in the art as a base transceiver station, radio base station, access point, radio transceiver, Node B, eNode B (eNB), Next Generation Node B or GigaNode B (any of which may be referred to as gNB), Home Node B, Home eNode B, or other suitable terminology.

[0060]

[0072] The UE 115 may include or be referred to as a mobile device, wireless device, remote device, handheld device, or subscriber device, or some other suitable terminology, where a “device” may also be referred to as a unit, station, terminal, or client, among other examples. The UE 115 may also include or be referred to as a personal electronic device, such as a cellular phone, a personal digital assistant (PDA), a tablet computer, a laptop computer, or a personal computer. In some examples, the 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, among other examples, which may be implemented in various objects such as an appliance, a vehicle, or a meter, among other examples.

[0061]

[0073] The UEs 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 shown in FIG. 1, as well as base stations 105 and network equipment, including macro eNBs or gNBs, small cell eNBs or gNBs, or relay base stations, among other examples.

[0062]

[0074] The UE 115 and the base station 105 may wirelessly communicate with each other via one or more communication links 125 via one or more carriers. The term “carrier” may refer to a set of radio frequency spectrum resources having a defined physical layer structure for supporting the communication link 125. For example, a carrier used for the communication link 125 may include a portion of a radio frequency spectrum band (e.g., a bandwidth portion (BWP)) operated according to one or more physical layer channels for a given radio access technology (e.g., LTE, LTE-A, LTE-A Pro, NR). Each physical layer channel may carry acquisition signaling (e.g., synchronization signals, system information), control signaling that coordinates the operation of the carrier, user data, or other signaling. The wireless communication system 100 may support communication with the UE 115 using carrier aggregation or multi-carrier operation. The UE 115 may be configured with multiple downlink component carriers and one or more uplink component carriers according to a carrier aggregation configuration. Carrier aggregation can be used with both frequency division duplex (FDD) and time division duplex (TDD) component carriers.

[0063]

[0075] In some examples (e.g., in carrier aggregation configurations), a carrier may also have acquisition or control signaling that coordinates the operation of other carriers. Carriers may be associated with frequency channels (e.g., Evolved Universal Mobile Telecommunications System Terrestrial Radio Access (E-UTRA) Absolute Radio Frequency Channel Numbers (EARFCNs)) and may be arranged according to a channel raster for discovery by UEs 115. A carrier may operate in a standalone mode, where initial acquisition and connection may be made by UEs 115 via the carrier, or the carrier may operate in a non-standalone mode, where connections are anchored using different carriers (e.g., of the same or different radio access technologies).

[0064]

[0076] The communication links 125 shown in the wireless communication system 100 may include uplink transmissions from the UE 115 to the base station 105 or downlink transmissions from the base station 105 to the UE 115. A carrier may carry downlink or uplink communications (e.g., in FDD mode) or may be configured to carry downlink and uplink communications (e.g., in TDD mode).

[0065]

[0077] A carrier may be associated with a particular bandwidth of the radio frequency spectrum, and in some examples, the carrier bandwidth may be referred to as the carrier or the “system bandwidth” of the wireless communication system 100. For example, the carrier bandwidth may be one of several determined bandwidths (e.g., 1.4, 3, 5, 10, 15, 20, 40, or 80 megahertz (MHz)) for a carrier of a particular radio access technology. The devices of the wireless communication system 100 (e.g., the base station 105, the UE 115, or both) may have a hardware configuration that supports communication over a particular carrier bandwidth or may be configurable to support communication over one of a set of carrier bandwidths. In some examples, the wireless communication system 100 may include a base station 105 or a UE 115 that supports simultaneous communication via carriers associated with multiple carrier bandwidths. In some examples, each served UE 115 may be configured to operate over a portion (e.g., a sub-band, BWP) or all of the carrier bandwidth.

[0066]

[0078] A signal waveform transmitted on a carrier may be composed of multiple subcarriers (e.g., using a multicarrier modulation (MCM) technique such as orthogonal frequency division multiplexing (OFDM) or discrete Fourier transform extended OFDM (DFT-S-OFDM)). In a system employing MCM techniques, a resource element may consist of one symbol period (e.g., the duration of one modulation symbol) and one subcarrier, where the symbol period and the subcarrier spacing have an inverse relationship. 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). Thus, the more resource elements and the higher the order of the modulation scheme received by the UE 115, the higher the data rate for the UE 115 may be. Wireless communication resources may refer to a combination of radio frequency spectrum resources, time resources, and spatial resources (e.g., spatial layers or beams), and the use of multiple spatial layers may further increase the data rate or data integrity for communications with the UE 115.

[0067]

[0079] One or more numerologies for a carrier may be supported, where the numerology may include a subcarrier spacing (Δf) and a cyclic prefix. A carrier may be divided into one or more BWPs with the same or different numerologies. In some examples, a UE 115 may be configured with multiple BWPs. In some examples, a single BWP for a carrier may be active at a given time, and communication for the UE 115 may be limited to one or more active BWPs.

[0068]

[0080] The time interval for the base station 105 or the UE 115 may be, for example, T s =1 / (Δf max N f ) seconds, where Δf max may represent the maximum supported subcarrier spacing, and N fmay represent the maximum supported discrete Fourier transform (DFT) size. The communication resource time intervals 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., ranging from 0 to 1023).

[0069]

[0081] Each frame may include multiple consecutively numbered subframes or slots, and each subframe or slot may have the same duration. In some examples, a frame may be divided into subframes (e.g., in the time domain), and each subframe may be further divided into several slots. Alternatively, each frame may include a variable number of slots, and the number of slots may depend on the subcarrier spacing. Each slot may include several symbol periods (e.g., depending on the length of a cyclic prefix prepended to each symbol period). In some wireless communications systems 100, a slot may be further divided into multiple minislots containing one or more symbols. Excluding the cyclic prefix, each symbol period may include one or more (e.g., N f The duration of a symbol period may depend on the subcarrier spacing or the frequency operating band.

[0070]

[0082] A subframe, slot, minislot, 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 transmission time interval (TTI). In some examples, 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 a burst of shortened TTIs (sTTIs)).

[0071]

[0083] Physical channels may be multiplexed on carriers according to various techniques. Physical control channels and physical data channels may be multiplexed on downlink carriers using, for example, one or more of a time division multiplexing (TDM) technique, a frequency division multiplexing (FDM) technique, or a hybrid TDM-FDM technique. A control region (e.g., a control resource set (CORESET)) for a physical control channel may be defined by several symbol periods and may span the system bandwidth of the carrier or a subset of the system bandwidth. One or more control regions (e.g., CORESET) may be configured for a set of UEs 115. For example, one or more of the 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 configured in a cascaded manner. The aggregation level for the control channel candidates may refer to several 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 sending control information to multiple UEs 115 and a UE-specific search space set for sending control information to a specific UE 115.

[0072]

[0084] Each base station 105 may provide communication coverage via one or more cells, e.g., macro cells, small cells, hot spots, or other types of cells, or any combination thereof. The term “cell” may refer to a logical communication entity used for communication with the base station 105 (e.g., on a carrier) and may be associated with an identifier (e.g., a physical cell identifier (PCID), a virtual cell identifier (VCID), or other) to distinguish neighboring cells. In some examples, a cell may also refer to a geographic coverage area 110 or a portion (e.g., a sector) of a geographic coverage area 110 in which the logical communication entity operates. Such a cell may range from a smaller area (e.g., a structure, a subset of a structure) to a larger area, depending on various factors such as the capabilities of the base station 105. For example, a cell may be or include a building, a subset of a building, or an outer space between or overlapping with the geographic coverage area 110, among other examples.

[0073]

[0085] A macro cell generally covers a relatively large geographic area (e.g., several kilometers in radius) and may allow unrestricted access by UEs 115 with a service subscription with the network provider that supports the macro cell. Small cells may be associated with lower-power base stations 105 compared to macro cells, and the small cells may operate in the same or different (e.g., licensed, unlicensed) frequency bands as the macro cell. A small cell may provide unrestricted access to UEs 115 with a service subscription with the network provider, or may provide restricted access to UEs 115 that have an association with the small cell (e.g., UEs 115 in a closed subscriber group (CSG), UEs 115 associated with users at home or in the office). A base station 105 may support one or more cells and may also support communication on one or more cells using one or more component carriers.

[0074]

[0086] In some examples, 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.

[0075]

[0087] In some examples, the base stations 105 are mobile and may therefore provide communication coverage to moving geographic coverage areas 110. In some examples, different geographic coverage areas 110 associated with different technologies may overlap, but the different geographic coverage areas 110 may be supported by the same base station 105. In other examples, overlapping geographic coverage areas 110 associated with different technologies may be supported by different base stations 105. The wireless communication system 100 may include a heterogeneous network in which different types of base stations 105 provide coverage to various geographic coverage areas 110, for example, using the same or different radio access technologies.

[0076]

[0088] 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 technologies that enable devices to communicate with each other or with the base station 105 without human intervention. In some examples, M2M communication or MTC may include communication from devices that incorporate sensors or meters to measure or capture information and relay such information to a central server or application program that utilizes the information or presents the information to a human interacting with the application program. Some UEs 115 may be designed to collect information or enable automated behavior of machines or other devices. Examples of applications for MTC devices include smart metering, inventory monitoring, water level monitoring, equipment monitoring, healthcare monitoring, wildlife monitoring, weather and geological event monitoring, fleet management and tracking, remote security detection, physical access control, and transaction-based business billing.

[0077]

[0089] The wireless communication system 100 may be configured to support ultra-reliable or low-latency communications, or various combinations thereof. For example, the wireless communication system 100 may be configured to support ultra-reliable low-latency communications (URLLC) or mission-critical communications. The UE 115 may be designed to support ultra-reliable, low-latency, or critical functions (e.g., mission-critical functions). Ultra-reliable communications may include private or group communications and may be supported by one or more mission-critical services, such as mission-critical push-to-talk (MCPTT), mission-critical video (MCVideo), or mission-critical data (MCData). Support for mission-critical functions may include service prioritization, and the mission-critical services may be used for public safety or general commercial applications. The terms ultra-reliable, low-latency, mission-critical, and ultra-reliable low-latency may be used interchangeably herein.

[0078]

[0090] In some examples, the UE 115 may also be able to communicate directly with other UEs 115 over a device-to-device (D2D) communication link 135 (e.g., using a peer-to-peer (P2P) or D2D protocol). One or more UEs 115 utilizing D2D communication may be within the geographic coverage area 110 of the base station 105. Other UEs 115 in such a group may be outside the geographic coverage area 110 of the base station 105 or otherwise unable to receive transmissions from the base station 105. In some examples, a group of UEs 115 communicating via D2D communication may utilize a one-to-many (1:M) system in which each UE 115 transmits to every other UE 115 in the group. In some examples, the base station 105 facilitates scheduling of resources for D2D communication. In other cases, D2D communication occurs between UEs 115 without the involvement of the base station 105.

[0079]

[0091] In some systems, the D2D communication link 135 may be an example of a communication channel, such as a sidelink communication channel, between vehicles (e.g., UE 115). In some examples, vehicles may communicate using vehicle-to-anything (V2X) communication, vehicle-to-vehicle (V2V) communication, or some combination thereof. Vehicles may signal information regarding traffic conditions, signal scheduling, weather, safety, emergency situations, or any other information relevant to the V2X system. In some examples, vehicles in a V2X system may communicate with roadside infrastructure, such as roadside units, or a network via one or more network nodes (e.g., base stations 105) using vehicle-to-network (V2N) communication, or both.

[0080]

[0092] 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 5G core (5GC) that may include at least one control plane entity (e.g., a mobility management entity (MME), an access and mobility management function (AMF)) that manages 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)) that routes packets or interconnections to external networks. The control plane entity may manage non-access stratum (NAS) functions, such as mobility, authentication, and bearer management, for the UEs 115 served by the base stations 105 associated with the core network 130. User IP packets may be forwarded through the user plane entity, which may provide IP address allocation and other functions. The user plane entities may be connected to IP services 150 for one or more network operators. The IP services 150 may include access to the Internet, intranet(s), IP Multimedia Subsystem (IMS), or packet-switched streaming services.

[0081]

[0093] Some of the network devices, such as the base station 105, may include sub-components such as an access network entity 140, which may be an example of an access node controller (ANC). Each access network entity 140 may communicate with the UE 115 through one or more other access network transmitting entities 145, which may be referred to as a radio head, a smart radio head, or a TRP. Each access network transmitting entity 145 may include one or more antenna panels. In some configurations, various functions of each access network entity 140 or base station 105 may be distributed across various network devices (e.g., radio heads and ANCs) or integrated into a single network device (e.g., the base station 105).

[0082]

[0094] The wireless communication system 100 may operate using one or more frequency bands typically ranging from 300 megahertz (MHz) to 300 gigahertz (GHz). The 300 MHz to 3 GHz region is generally known as the ultra-high frequency (UHF) region or decimeter band because wavelengths range in length from approximately 1 decimeter to 1 meter. Although UHF waves may be blocked or redirected by buildings and environmental features, these waves may penetrate structures sufficiently for a macrocell to serve UEs 115 located indoors. Transmission of UHF waves may be associated with smaller antennas and shorter distances (e.g., less than 100 kilometers) compared to transmissions using smaller frequencies and longer waves in the high frequency (HF) or very high frequency (VHF) portions of the spectrum below 300 MHz.

[0083]

[0095] The wireless communication system 100 may also operate in the very high frequency (SHF) region, using the frequency band from 3 GHz to 30 GHz, also known as the centimeter band, or in the extremely high frequency (EHF) region of the spectrum, also known as the millimeter band (e.g., from 30 GHz to 300 GHz). In some examples, the wireless communication system 100 may support millimeter wave (mmW) communications between the UE 115 and the base station 105, and the EHF antennas on each device may be smaller and more closely spaced than UHF antennas. In some examples, this may facilitate the use of antenna arrays within the device. However, propagation of EHF transmissions may be subject to greater atmospheric attenuation and shorter distances than SHF or UHF transmissions. The techniques disclosed herein may be employed across transmissions using one or more different frequency regions, and the designated use of bands across these frequency regions may vary by country or regulatory body.

[0084]

[0096] The wireless communication system 100 may utilize both licensed and unlicensed radio frequency spectrum bands. For example, the wireless communication system 100 may employ license-assisted access (LAA), LTE unlicensed (LTE-U) radio access technology, or NR technology in an unlicensed band such as the 5 GHz Industrial, Scientific, and Medical (ISM) band. When operating in an unlicensed radio frequency spectrum band, devices such as the base station 105 and the UE 115 may employ carrier sensing for collision detection and avoidance. In some examples, operation in an unlicensed band may be based on a carrier aggregation configuration with component carriers operating in a licensed band (e.g., LAA). Operation in an unlicensed spectrum may include downlink transmissions, uplink transmissions, P2P transmissions, or D2D transmissions, among other examples.

[0085]

[0097] The base station 105 or the 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 base station 105 or the UE 115 may be located in one or more antenna arrays or antenna panels that can support MIMO operation or transmit or receive beamforming. For example, one or more base station antennas or antenna arrays may be co-located in an antenna assembly, such as an antenna tower. In some examples, antennas or antenna arrays associated with the base station 105 may be located in various geographic locations. The base station 105 may have an antenna array with several rows and columns of antenna ports that the base station 105 can use to support beamforming of communications with the UE 115. Similarly, the UE 115 may have one or more antenna arrays that can support various MIMO or beamforming operations. Additionally or alternatively, the antenna panel may support radio frequency beamforming for signals transmitted through the antenna ports.

[0086]

[0098] The base station 105 or UE 115 may use MIMO communications to exploit multipath signal propagation and increase spectral efficiency by transmitting or receiving multiple signals via different spatial layers. Such techniques are sometimes referred to as spatial multiplexing. Multiple signals may be transmitted by a transmitting device via different antennas or different combinations of antennas, for example. Similarly, multiple signals may be received by a receiving device via different antennas or different combinations of antennas. Each of the multiple signals may be referred to as a separate spatial stream and may carry bits associated with the same data stream (e.g., the same codeword) or different data streams (e.g., different codewords). Different spatial layers may be associated with different antenna ports used for channel measurement and reporting. MIMO techniques include single-user MIMO (SU-MIMO), in which multiple spatial layers are transmitted to the same receiving device, and multi-user MIMO (MU-MIMO), in which multiple spatial layers are transmitted to multiple devices.

[0087]

[0099] Beamforming, sometimes referred to as spatial filtering, directional transmission, or directional reception, is a signal processing technique that may be used at a transmitting or receiving device (e.g., base station 105, UE 115) to shape or steer an antenna beam (e.g., transmit beam, receive beam) along a spatial path between the transmitting and receiving devices. Beamforming may be achieved by combining signals communicated via antenna elements of an antenna array such that some signals propagating in a particular orientation relative to the antenna array experience constructive interference and others experience destructive interference. Adjusting signals communicated via antenna elements may include the transmitting or receiving device applying an amplitude offset, a phase offset, or both to signals carried via antenna elements associated with the device. The adjustment associated with each of the antenna elements may be defined by a beamforming weight set associated with a particular orientation (e.g., relative to the antenna array of the transmitting or receiving device or to some other orientation).

[0088]

[0100] The base station 105 or the UE 115 may use beam sweeping techniques as part of a beamforming operation. For example, the base station 105 may use multiple antennas or antenna arrays (e.g., antenna panels) to perform a beamforming operation for directional communication with the UE 115. Some signals (e.g., synchronization signals, reference signals, beam selection signals, or other control signals) may be transmitted multiple times by the base station 105 in different directions. For example, the base station 105 may transmit signals according to different beamforming weight sets associated with different transmission directions. The transmissions in different beam directions may be used to identify beam directions (e.g., by a transmitting device such as the base station 105 or by a receiving device such as the UE 115) for subsequent transmission or reception by the base station 105.

[0089]

[0101] Some signals, such as data signals associated with a particular receiving device, may be transmitted by the base station 105 in a single beam direction (e.g., a direction associated with the receiving device, such as the UE 115). In some examples, the beam direction associated with a transmission along a single beam direction may be determined based on signals transmitted in one or more beam directions. For example, the UE 115 may receive one or more of the signals transmitted by the base station 105 in different directions and may report to the base station 105 an indication of the signal that the UE 115 received with the best or otherwise acceptable signal quality.

[0090]

[0102] In some examples, transmission by a device (e.g., by the base station 105 or the UE 115) may be performed using multiple beam directions, and the device may use a combination of digital precoding or radio frequency beamforming to generate a composite beam for transmission (e.g., from the base station 105 to the UE 115). The UE 115 may report feedback indicating precoding weights for one or more beam directions, and the feedback may correspond to a configured number of beams across the system bandwidth or one or more subbands. The base station 105 may transmit a reference signal (e.g., a cell-specific reference signal (CRS), a channel state information reference signal (CSI-RS)), which may be precoded or ampliconed. The UE 115 may provide feedback for beam selection, which may be a precoding matrix indicator (PMI) or codebook-based feedback (e.g., a multi-panel type codebook, a linear combination type codebook, a port selection type codebook). Although these techniques have been described with respect to signals transmitted in one or more directions by the base station 105, the UE 115 may employ similar techniques to transmit a signal multiple times in different directions (e.g., to identify a beam direction for subsequent transmission or reception by the UE 115) or to transmit a signal in a single direction (e.g., to transmit data to a receiving device).

[0091]

[0103] A receiving device (e.g., UE 115) may attempt multiple receive configurations (e.g., directional listening) when receiving various signals, such as synchronization signals, reference signals, beam selection signals, or other control signals, from the base station 105. For example, the receiving device may attempt multiple receive directions by receiving via different antenna subarrays, by processing received signals according to different antenna subarrays, by receiving according to different receive beamforming weight sets (e.g., different directional listening weight sets) applied to signals received at multiple antenna elements of the antenna array, or by processing received signals according to different receive beamforming weight sets applied to signals received at multiple antenna elements of the antenna array, any of which may be referred to as “listening” according to different receive configurations or receive directions. In some examples, the receiving device may use a single receive configuration to receive along a single beam direction (e.g., when receiving a data signal). A single receiving configuration may be aligned in a beam direction determined based on listening along different receiving configuration directions (e.g., a beam direction determined to have the highest signal strength, highest signal-to-noise ratio (SNR), or otherwise acceptable signal quality based on listening along multiple beam directions).

[0092]

[0104] Additionally or alternatively, the base station 105 in the wireless communication system 100 may include one or more TRPs. Each TRP may be associated with one or more antenna ports, beams, and beam indices. In some cases, the UE 115 may transmit one or more uplink communications to multiple TRPs, and such communications may include multiple repetitions of the uplink communication to the multiple TRPs to improve the likelihood of successful reception of the uplink communication. In some cases, the UE 115 may transmit the uplink communication based on parameters determined from the SRS resources (e.g., the number of antenna ports, a spatial domain filter or beam, a rank or number of layers, or any combination thereof). The SRS resources may be selected from a set of SRS resources configured in the UE 115 and may be indicated in control information provided to the UE 115. In some cases, multiple sets of SRS resources may be configured in the UE 115, and one or more indicators in the control information may be mapped to SRS resources from one or more of the sets of SRS resources.

[0093]

[0105] FIG. 2 illustrates an example of a wireless communication system 200 supporting resource signaling techniques for multiple repetitions of an uplink transmission according to aspects of the present disclosure. For example, the wireless communication system 200 includes a first base station 105-a, a second base station 105-b, and a UE 115-a, which may be examples of the respective devices described with reference to FIG. 1. References to specific wireless devices (e.g., UE, TRP, base station) in the following figures are provided for illustrative purposes, and it should be understood that different wireless devices not specifically mentioned herein may be used interchangeably with those described herein. Similarly, described operations performed by the UE 115 may, in some cases, be performed by the base station 105 (or TRP), and vice versa. In some examples, multiple TRPs may each be a standalone TRP or may be part of one base station 105 or different base stations 105. Additionally or alternatively, the base station 105 or TRP may be a component or example of an IAB node, a repeater node (e.g., configured with some retransmission capability), or the like. Furthermore, the UE 115-a may be an example of a customer premises equipment (CPE), a sidelink node, a repeater node, etc.

[0094]

[0106] A first base station 105-a (e.g., associated with a first TRP) may provide coverage area 110-a, and a second base station 105-b (e.g., associated with a second TRP) may provide coverage area 110-b. Additionally or alternatively, each base station 105 may communicate with a UE 115-a via one or more communication links. For example, the first base station 105-a may transmit downlink communications to the UE 115-a via link 205, and the UE 115-a may transmit uplink communications to the first base station 105-a via link 210. In this example, the UE 115-a may also transmit uplink communications to the second base station 105-b via link 215. In some examples, the base station 105 and the UE 115-a may communicate using a particular directional beam identified based on one or more beam training procedures.

[0095]

[0107] In some cases, the UE 115-a may be configured with two SRS resource sets to enable uplink communication to both base stations 105. Multiple SRS resource sets may be provided for either codebook-based or non-codebook-based communication, and SRS resources from one or both of the SRS resource sets may be indicated by one or two resource indication (e.g., SRI) fields transmitted to the UE 115-a in control information 225. In some cases, the UE 115-a may receive configuration information 220 indicating whether a first resource indication is present in the control information 225 or whether both a first resource indication and a second resource indication are present in the control information 225. For example, the configuration information 220 may be RRC-signaled configuration information. The one or more resource indication fields may provide an indication of the SRS resources in the one or two SRS resource sets, providing uplink transmission parameters for a first set of repetitions 230 of uplink communication and a second set of repetitions 235 of uplink communication. In this example, a first set of repetitions 230 is transmitted to a first base station 105-a (e.g., to a first TRP of the first base station 105-a), and a second set of repetitions 235 is transmitted to a second base station 105-b (e.g., to a second TRP of the second base station 105-b).

[0096]

[0108] As shown, UE 115-a may be configured by configuration information 220 to expect one resource indication or two resource indications (e.g., in one SRI field or two SRI fields). If two resource indications are configured, UE 115-a may receive control information 225 and determine that the scheduling information for uplink communication indicates one SRS resource set (e.g., indicates only the first SRS resource set). In such a case, the resource indication may indicate one or more SRS resources within the first SRS resource set, and the second resource indication field may be ignored. In such a case, uplink transmission parameters for both the first set of repetitions 230 and the second set of repetitions 235 are determined based on the first SRS resource set.

[0097]

[0109] In other cases, the control information 225 may indicate two SRS resource sets, where the first resource indication field may indicate one or more SRS resources in the first SRS resource set and the second resource indication field may indicate one or more SRS resources in the second SRS resource set. In such a case, the uplink transmission parameters for the first set of repetitions 230 are determined based on the first resource indication of the SRS resources in the first SRS resource set, and the second set of repetitions 235 are determined based on the second resource indication of the SRS resources in the second SRS resource set.

[0098]

[0110] As also shown, in some cases, UE 115-a may be configured by configuration information 220 to expect a single resource indication field in control information 225 (e.g., a first SRI field configured and a second SRI field not configured). In such cases, control information 225 (e.g., an uplink DCI scheduling a PUSCH repetition) may indicate one SRS resource set (e.g., indicate only the first SRS resource set), and the resource indication field may indicate one or more SRS resources within only the first SRS resource set. In other cases, control information 225 may indicate two SRS resource sets, and the two resource indication fields may indicate SRS resources from within the first SRS resource set and the second SRS resource set, respectively.

[0099]

[0111] In some cases, the configuration of the presence of one or two resource indication fields may be separately configured in different control information 225 formats (e.g., via RRC signaling). That is, two SRI fields corresponding to two SRS resource sets may be included in different DCI formats. In some examples, rather than being explicitly configured with the number of SRI fields, the number of SRI fields may depend on the configuration of the number of configured SRS resource sets in the UE 115-a. If the UE 115-a is configured with two SRS resource sets and either or both of the SRS resource sets have more than one SRS resource, the DCI may include two SRI fields. Thus, the rule for the number of SRI fields in the DCI may depend on the number of configured SRS resource sets and the number of configured SRS resources in each SRS resource set. Thus, if the number of SRS resource configurations (e.g., the number of SRS resource sets and the number of SRS resources per set) is configured via SRS configuration information (e.g., via RRC signaling), the number of SRI fields in the DCI may depend on or be configured accordingly with the SRS configuration. For example, a first control information format corresponding to DCI format 0_1 ​​may be configured for one or two resource indication fields, and a second control information format corresponding to DCI format 0_2 may be independently and separately configured for one or two resource indication fields. In some examples, each SRI field may indicate an SRI per TRP. Resource indication signaling may be used for codebook-based uplink communications in which one SRS resource in an SRS resource set is indicated, and may be used for non-codebook-based uplink communications in which one or more SRS resources in an SRS resource set may be indicated. In some examples, for non-codebook-based uplink communications, resource indication signaling may support the same number of layers applied across recurrences.Using such techniques, the presence of one or two resource indication fields may be semi-statically configured (e.g., via RRC signaling), while single or multiple SRS resource sets for a particular uplink communication may be dynamically indicated in the control information 225. Additionally or alternatively, the described techniques may support dynamic switching between multi-TRP and single-TRP operation.

[0100]

[0112] Such techniques may provide for the configuration of multiple SRS resource sets at the UE 115-a while allowing flexibility in scheduling uplink communications with repetitions that can use transmission parameters based on SRS resources from within one or both of the configured SRS resource sets. Thus, the base station 105 may select one or more SRS resource sets for a particular PUSCH transmission repetition based on beams that would be suitable for different repetitions (e.g., if the identified beams are associated with TRPs associated with different SRS resource sets). Such selection and identification of SRS resource sets and SRS resources may enable the base station 105 to schedule uplink communications with repetitions based on channel conditions, improving the likelihood of successful decoding of the uplink communications, thereby improving the efficiency and reliability of wireless communications. Various examples and aspects are described in more detail with reference to FIGS. 3 through 6.

[0101]

[0113] FIG. 3 illustrates an example of control and shared channel communication 300 supporting resource signaling techniques for multiple repetitions of an uplink transmission according to an aspect of the present disclosure. For example, the control and shared channel communication 300 may be used in a wireless communication system including a UE 115 and a base station 105 as described with reference to FIGS. 1 and 2. References to specific wireless devices (e.g., UE, TRP, base station) in the exemplary diagrams are provided for illustrative purposes, and it should be understood that different wireless devices not specifically mentioned herein may be used interchangeably with those described herein. Similarly, described operations performed by the UE 115 may, in some cases, be performed by the base station 105, and vice versa. In some examples, a base station may be or include an example of one or more TRPs. Additionally or alternatively, the base stations may each be an example of an IAB node, a repeater node (e.g., configured with some retransmission capability), etc. Furthermore, a UE may be an example of a CPE, a sidelink node, a repeater node, etc.

[0102]

[0114] In this example, the scheduling DCI 305 may schedule an uplink transmission having a first set of repetitions 310 and a second set of repetitions 315. Further, the first set of repetitions 310 may include a first repetition 310-a and a second repetition 310-b, both transmitted on a first TRP. Similarly, the second set of repetitions 315 may include a third repetition 315-a and a fourth repetition 315-b, both transmitted on a second TRP. Each repetition in both the first set of repetitions 310 and the second set of repetitions 315 may include the same TB; thus, multiple repetitions on multiple different TRPs may improve the likelihood of successful decoding of a TB in either or both of the first and second TRPs. As described herein, the scheduling DCI 305 may include a single resource indication field, as described in more detail with reference to FIG. 5, or may include multiple resource indication fields, as described in more detail with reference to FIG. 4.

[0103]

[0115] 4 illustrates an example of control information 400 with multiple resource indicators supporting a resource signaling technique for multiple repetitions of an uplink transmission, according to an aspect of the present disclosure. For example, the control information 400 may be used in a wireless communication system including a UE 115 and a base station 105 as described herein.

[0104]

[0116] In this example, the uplink DCI 405 may include scheduling information for uplink PUSCH communication from the UE to one or more TRPs. In this example, the UE may be configured (e.g., via RRC signaling) with two SRS resource sets including a first SRS resource set 420 and a second SRS resource set 430. Additionally, the UE may be configured to expect control information with two SRI fields including a first SRS field 410 and a second SRS field 415. In this example, the first SRS resource set 420 may be configured with four SRS resources including a first SRS resource 425-a, a second SRS resource 425-b, a third SRS resource 425-c, and a fourth SRS resource 425-d. Similarly, the second SRS resource set 430 may consist of four SRS resources, including a first SRS resource 435-a, a second SRS resource 435-b, a third SRS resource 435-c, and a fourth SRS resource 435-d. The first SRI field 410 in this example indicates the first SRS resource 425-a and the third SRS resource 425-c in the first SRS resource set 420. The second SRI field 415 in this example indicates the second SRS resource 435-b and the third SRS resource 435-c in the second SRS resource set 430. Thus, in this example, uplink communications may be transmitted in a first set of repetitions using uplink transmission parameters based on a first SRI field 410 (e.g., suitable for transmission to a first TRP using a first beam) and in a second set of repetitions using uplink transmission parameters based on a second SRI field 415 (e.g., suitable for transmission to a second TRP using a second beam).

[0105]

[0117] In some cases, for a codebook-based PUSCH, the UE may expect the indicated SRS resources in the first SRS resource set 420 (e.g., via the first SRI field 410) to have the same number of ports compared to the indicated SRS resources in the second SRS resource set 430 (e.g., via the second SRI field 415). In other cases, for a non-codebook-based PUSCH, the UE may expect the number of indicated SRS resources in the first SRS resource set 420 (e.g., via the first SRI field 410) to be the same as the number of SRS resources indicated in the second SRS resource set 430 (e.g., via the second SRI field 415). This provides that the two sets of PUSCH repetitions have the same rank, which may be determined by the number of indicated SRS resources in the SRS resource sets. In some examples, for a non-codebook-based PUSCH (e.g., a multi-TRP PUSCH), the first SRI field 410 may be used to determine an entry for the second SRI field 415, which may include at least one SRI combination corresponding to the indicated rank (e.g., number of layers) of the first SRI field 410. For example, the number of bits N2 for the second SRI field 415 may be determined by the maximum number of codepoints per rank among the ranks associated with the first SRI field 410. For each rank x, the first K x The code point is the rank associated with the first SRI field 410. x K x can be mapped to the SRI of N2 -K x ) code points may be reserved.

[0106]

[0118] 2, in some cases, the uplink DCI 405 may indicate one SRS resource set or may indicate two SRS resource sets. As described, if the uplink DCI 405 indicates one SRS resource set, the UE may ignore any indication provided in the second SRI field 415. In some cases, the indication of one SRS resource set versus two SRS resource sets in the uplink DCI 405 may be provided by a bit field within the uplink DCI 405. For example, such a bit field may include two bits indicating one of three possibilities: (1) only the first SRS resource set 420 (e.g., all iterations corresponding to and targeted to the first TRP associated with the first SRS resource set 420) should be used; (2) only the second SRS resource set 430 (e.g., all iterations corresponding to and targeted to the second TRP associated with the second SRS resource set 430) should be used; or (3) both the first SRS resource set 420 and the second SRS resource set 430 (e.g., two sets of iterations corresponding to and targeted to the first TRP and the second TRP, respectively) should be used, and the UE determines which set of SRS resources corresponds to which SRI field.

[0107]

[0119] In another example, the bit field in the uplink DCI 405 indicating one SRS resource set versus two SRS resource sets may be a one-bit field indicating one SRS resource set or both SRS resource sets. In such a case, when the bit field indicates one SRS resource set, whether the first SRS resource set 420 or the second SRS resource set 430 should be used may be based on an assumption that the first SRS resource set 420 (or the second SRS resource set 430) will be used or may be indicated to the UE in configuration information (e.g., in RRC signaling). In a further case, a different bit field in the uplink DCI 405 may be used to determine whether the first SRS resource set 420 or the second SRS resource set 430 should be assumed. For example, if two SRI fields are present in the uplink DCI 405 and one of the SRI fields is unused (e.g., for a single SRS resource set indicated), the second SRI field 415 (e.g., the first or last bit of that SRI field) may be used to indicate whether the first SRS resource set 420 or the second SRS resource set 430 is indicated.

[0108]

[0120] In other cases, a separate bit field with an indication of which SRS resource set should be used when one SRS resource set is indicated for uplink communications may not be provided, and a reserved value for the SRI codepoint (e.g., all 0s or all 1s) may be used to indicate that no SRS resource set is indicated (e.g., if the first SRI field 410 is set to all '0s', no SRS resources are indicated from the first SRS resource set 420, and if the second SRI field 415 is set to all '0s', SRS resources are indicated from the second SRS resource set 430), and if an SRI field is not set to its reserved value, the value of the SRI field indicates one or more SRS resources in the corresponding SRS resource set (in such cases, the UE does not expect both SRI fields to be set to reserved values).

[0109]

[0121] 5 illustrates an example of control information 500 with a single resource indicator that supports resource signaling techniques for multiple repetitions of uplink transmissions in accordance with an aspect of the present disclosure. For example, the control information 500 may be used in a wireless communication system that includes a UE 115 and a base station 105 as described herein.

[0110]

[0122] In this example, the uplink DCI 505 may include scheduling information for uplink PUSCH communications from the UE to one or more TRPs. In this example, the UE may be configured (e.g., via RRC signaling) with two SRS resource sets including a first SRS resource set 520 and a second SRS resource set 530. Additionally, the UE may be configured to expect control information with a single SRS field 510. In this example, the first SRS resource set 520 may consist of four SRS resources including a first SRS resource 525-a, a second SRS resource 525-b, a third SRS resource 525-c, and a fourth SRS resource 525-d. Similarly, the second SRS resource set 530 may be composed of four SRS resources, including a first SRS resource 535-a, a second SRS resource 535-b, a third SRS resource 535-c, and a fourth SRS resource 535-d. The single SRI field 510 in this example indicates the same relative SRS resources within both the first SRS resource set 520 and the second SRS resource set 530 (e.g., the first SRS resource 525-a and the third SRS resource 525-c of the first SRS resource set 520 and the first SRS resource 535-a and the third SRS resource 535-c of the second SRS resource set 530). Thus, in this example, uplink communications may be transmitted during a first set of repetitions using uplink transmission parameters based on the first SRS resource set 520 and during a second set of repetitions using uplink transmission parameters based on the second SRS resource set 530.

[0111]

[0123] For a codebook-based PUSCH, based on the single SRI field 510 configured in such a case, the UE may expect the i-th configured SRS resource in the first SRS resource set 520 to have the same number of ports as the i-th SRS resource in the second SRS resource set 530. Such a configuration provides two sets of PUSCH repetitions with the same number of antenna ports (determined by the number of ports of the associated SRS resource).

[0112]

[0124] In some examples, one of the following conditions exists for both the codebook-based PUSCH and the non-codebook-based PUSCH: The first condition provides that the first SRS resource set 520 and the second SRS resource set 530 have the same number of SRS resources (e.g., guaranteed by a configuration restriction for the two SRS resource sets). The second condition provides that the number of bits of the single SRI field 510 of the uplink DCI 505 is determined based on the maximum of the number of SRS resources in the first SRS resource set 520 and the number of SRS resources in the second SRS resource set 530. Although such a condition provides that the single SRI field 510 indicates SRS resources in both the first SRS resource set 520 and the second SRS resource set 530, such a condition may not be necessary if there are two separate SRI fields as described with reference to FIG. 4.

[0113]

[0125] FIG. 6 illustrates an example of a process flow 600 supporting a resource signaling technique for multiple repetitions of uplink transmission according to aspects of the present disclosure. In some examples, the process flow 600 may implement aspects of the wireless communication system 100 or 200. For example, the process flow 600 includes a UE 115-b, a first base station 105-c, and a second base station 105-d, which may each be examples of corresponding devices described with reference to FIGS. 1-5. The process flow 600 may illustrate an example of the first base station 105-c, the second base station 105-d, and the UE 115-b determining uplink transmission parameters for multiple repetitions of uplink communication to different TRPs.

[0114]

[0126] In the following description of process flow 600, operations between the UE 115-b, the first base station 105-c, and the second base station 105-d may be transmitted in an order different from that shown, or operations performed by the UE 115-b, the first base station 105-c, and the second base station 105-d may be performed in a different order or at different times. Also, some operations may be omitted from process flow 600, or other operations may be added to process flow 600. Although the UE 115-b, the first base station 105-c, and the second base station 105-d are shown performing some operations of process flow 600, it should be understood that any wireless device (e.g., a UE, customer premises equipment, a base station, a TRP, an integrated access and backhaul (IAB) node, a repeater with a different type of capability for signal repetition (also known as a “smart” or “dumb” repeater or some other term), or a sidelink node, among other examples) may perform the illustrated operations.

[0115]

[0127] Optionally, at 605, the UE 115-b may transmit a measurement report to the first base station 105-c (which may include, for example, the first TRP). Such a measurement report may provide information about one or more beams that are suitable for communication with the UE 115-b associated with the one or more TRPs. In some cases, the measurement report may indicate that the UE 115-b is experiencing relatively poor channel conditions associated with one or more TRPs, which may indicate that multiple repetitions of uplink communication may be required to achieve a reliability target for the communication.

[0116]

[0128] At 610, the first base station 105-c may determine configuration information for the UE 115-b. In some cases, the first base station 105-c may be a serving base station and may determine that the UE 115-b should transmit multiple repetitions of the uplink communication. In some cases, the configuration information may include a configuration of multiple SRS resource sets, each of which may be associated with a different TRP (e.g., a first SRS resource set may provide SRS resources that are suitable for communication with one or more TRPs, and a second SRS resource set may provide SRS resources that are suitable for communication with one or more TRPs that may include some or none of the same TRPs as the first SRS resource set). The configuration information may also include an indication of whether the control information scheduling the uplink communication should include one or two resource indicators (e.g., whether the scheduling DCI should include one SRI field or multiple SRI fields). Additionally or alternatively, the configuration information may also configure one of the SRS resource sets as associated with a particular SRI field in the control information. In some cases, the first base station 105-c may optionally exchange TRP coordination information with the second base station 105-d, as shown at 615. Such coordination information may include, for example, information regarding uplink resources for anticipated uplink communications.

[0117]

[0129] At 620, the first base station 105-c may transmit an SRS resource configuration to the UE 115-b. In some cases, the SRS resource configuration may be transmitted as part of RRC signaling between the UE 115-b and the first base station 105-c. At 625, the first base station 105-c may determine a repetition level, SRS resources, and an uplink allocation for uplink communications from the UE 115-b.

[0118]

[0130] At 630, the first base station 105-c, the second base station 105-d, or both may transmit a DCI to the UE 115-b. The DCI may include an indication of an SRS resource set to be used for uplink communication, a repetition number of uplink communication, an indication of one or more SRS resources in one or more SRS resource sets associated with the uplink communication, or any combination thereof.

[0119]

[0131] At 635, the UE 115-b may determine uplink transmission parameters for the repetition of the uplink communication. In some cases, the UE 115-b may determine which SRS resources of a configured SRS resource set should be associated with the uplink communication, such as by using one or more techniques described herein.

[0120]

[0132] Optionally, at 640, the UE 115-b may transmit one or more SRSs to the first base station 105-c, the second base station 105-d, or both. The one or more SRSs may have uplink transmission parameters determined based on the indicated SRS resources, as described herein. At 645, the UE 115-b may transmit a first set of PUSCH repetitions to the first base station 105-c (and, optionally, the second base station 105-d), and at 650, the UE 115-b may transmit a second set of PUSCH repetitions to the second base station 105-d (and, optionally, the first base station 105-c). Repetitions of different sets of repetitions may have uplink transmission parameters determined based on the indicated SRS resources, such as by using various different techniques provided herein.

[0121]

[0133] 7 shows a block diagram 700 of a device 705 that supports resource signaling techniques for multiple repetitions of uplink transmission according to an aspect of the disclosure. The device 705 may be an example of an aspect of a UE 115 described herein. The device 705 may include a receiver 710, a transmitter 715, and a communications manager 720. The device 705 may also include a processor. Each of these components may be in communication with each other (e.g., via one or more buses).

[0122]

[0134] The receiver 710 may provide a means for receiving information such as packets, user data, control information, or any combination thereof, associated with various information channels (e.g., control channels, data channels, information channels related to resource signaling techniques for multiple repetitions of uplink transmissions). The information may be passed on to other components of the device 705. The receiver 710 may utilize a single antenna or a set of multiple antennas.

[0123]

[0135] The transmitter 715 may provide a means for transmitting signals generated by other components of the device 705. For example, the transmitter 715 may transmit information such as packets, user data, control information, or any combination thereof associated with various traffic channels (e.g., control channels, data channels, traffic channels related to resource signaling techniques for multiple repetitions of uplink transmission). In some examples, the transmitter 715 may be co-located with the receiver 710 in a transceiver module. The transmitter 715 may utilize a single antenna or a set of multiple antennas.

[0124]

[0136] The communications manager 720, the receiver 710, the transmitter 715, or various combinations thereof or components thereof may be examples of means for implementing various aspects of the resource signaling techniques for multiple repetitions of uplink transmission described herein. For example, the communications manager 720, the receiver 710, the transmitter 715, or various combinations or components thereof may support a method for implementing one or more of the functions described herein.

[0125]

[0137] In some examples, the communications manager 720, the receiver 710, the transmitter 715, or various combinations or components thereof may be implemented in hardware (e.g., in communications management circuitry). The hardware may include a processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof configured as or otherwise supporting a means for performing the functions described in this disclosure. In some examples, a processor and a memory coupled to the processor may be configured to perform one or more of the functions described herein (e.g., by executing, by the processor, instructions stored in the memory).

[0126]

[0138] Additionally or alternatively, in some examples, the communications manager 720, the receiver 710, the transmitter 715, or various combinations or components thereof may be implemented in code (e.g., as communications management software or firmware) executed by a processor. When implemented in code executed by a processor, the functionality of the communications manager 720, the receiver 710, the transmitter 715, or various combinations or components thereof may be performed by a general-purpose processor, a DSP, a central processing unit (CPU), an ASIC, an FPGA, or any combination thereof or other programmable logic device (e.g., configured as or otherwise supporting a means for performing the functions described in this disclosure).

[0127]

[0139] In some examples, the communications manager 720 may be configured to perform various operations (e.g., receiving, monitoring, transmitting) using or otherwise cooperating with the receiver 710, the transmitter 715, or both. For example, the communications manager 720 may be incorporated in combination with the receiver 710, the transmitter 715, or both to receive information from the receiver 710, send information to the transmitter 715, or receive information, transmit information, or perform various other operations described herein.

[0128]

[0140] Communications manager 720 may support wireless communications in a UE according to examples disclosed herein. For example, communications manager 720 may be configured with or support a means for receiving, from a base station, SRS configuration information indicating whether control information granting an uplink grant to the UE should include one resource indicator for SRS resources or two resource indicators for SRS resources. Communications manager 720 may be configured with or support a means for receiving, from a base station, first control information that schedules two or more repetitions of a first uplink communication and indicates an association between the two or more repetitions of the first uplink communication with either a first set of SRS resources, a second set of SRS resources, or both. Communications manager 720 may be configured with or may support a means for determining a first set of uplink transmission parameters for the first set of repetitions of the first uplink communication and a second set of uplink transmission parameters for the second set of repetitions of the first uplink communication based on one or two resource indicators in the first control information and an indicated one or both of the first set of SRS resources or the second set of SRS resources associated with two or more repetitions of the first uplink communication. Communications manager 720 may be configured with or may support a means for transmitting the first set of repetitions of the first uplink communication using the first set of uplink transmission parameters and transmitting the second set of repetitions of the first uplink communication using the second set of uplink transmission parameters.

[0129]

[0141] By including or configuring the communications manager 720 according to examples described herein, the device 705 (e.g., a processor controlling or coupled to the receiver 710, the transmitter 715, the communications manager 720, or a combination thereof) may support techniques for transmitting multiple repetitions of an uplink communication to multiple different TRPs, whereby the different repetitions may use transmission parameters that are suitable for the particular TRP associated with the repetition. Such techniques may enable improved reliability of wireless communications, thus providing more efficient utilization of communications resources, reduced power consumption (through reduced retransmissions), reduced latency (through reduced retransmissions), and more efficient utilization of communications resources.

[0130]

[0142] 8 shows a block diagram 800 of a device 805 that supports resource signaling techniques for multiple repetitions of uplink transmission according to an aspect of the disclosure. The device 805 may be an example of an aspect of the device 705 or UE 115 described herein. The device 805 may include a receiver 810, a transmitter 815, and a communications manager 820. The device 805 may also include a processor. Each of these components may be in communication with one another (e.g., via one or more buses).

[0131]

[0143] The receiver 810 may provide a means for receiving information such as packets, user data, control information, or any combination thereof, associated with various information channels (e.g., control channels, data channels, information channels related to resource signaling techniques for multiple repetitions of uplink transmissions). The information may be passed on to other components of the device 805. The receiver 810 may utilize a single antenna or a set of multiple antennas.

[0132]

[0144] The transmitter 815 may provide a means for transmitting signals generated by other components of the device 805. For example, the transmitter 815 may transmit information such as packets, user data, control information, or any combination thereof associated with various traffic channels (e.g., control channels, data channels, traffic channels related to resource signaling techniques for multiple repetitions of uplink transmission). In some examples, 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 set of multiple antennas.

[0133]

[0145] The device 805, or various components thereof, may be an example of a means for implementing various aspects of the resource signaling techniques for multiple repetitions of uplink transmission described herein. For example, the communications manager 820 may include an SRS configuration manager 825, a control information manager 830, an uplink transmission parameter manager 835, an uplink communications manager 840, or any combination thereof. The communications manager 820 may be an example of an aspect of the communications manager 720 described herein. In some examples, the communications manager 820, or various components thereof, may be configured to use or otherwise cooperate with the receiver 810, the transmitter 815, or both to perform various operations (e.g., receiving, monitoring, transmitting). For example, the communications manager 820 may be incorporated in combination with the receiver 810, the transmitter 815, or both to receive information from the receiver 810, send information to the transmitter 815, or to receive information, transmit information, or perform various other operations described herein.

[0134]

[0146] The communications manager 820 may support wireless communications in the UE according to examples disclosed herein. The SRS configuration manager 825 may be configured with or support a means for receiving, from a base station, SRS configuration information indicating whether control information granting an uplink grant to the UE should include one resource indicator for SRS resources or two resource indicators for SRS resources. The control information manager 830 may be configured with or support a means for receiving, from a base station, first control information that schedules two or more repetitions of a first uplink communication and indicates an association between the two or more repetitions of the first uplink communication with either a first set of SRS resources, a second set of SRS resources, or both. The uplink transmission parameter manager 835 may be configured as or may support a means for determining a first set of uplink transmission parameters for the first set of repetitions of the first uplink communication and a second set of uplink transmission parameters for the second set of repetitions of the first uplink communication based on one or two resource indicators in the first control information and an indicated one or both of the first set of SRS resources or the second set of SRS resources associated with two or more repetitions of the first uplink communication. The uplink communications manager 840 may be configured as or may support a means for transmitting the first set of repetitions of the first uplink communication using the first set of uplink transmission parameters and transmitting the second set of repetitions of the first uplink communication using the second set of uplink transmission parameters.

[0135]

[0147] 9 shows a block diagram 900 of a communications manager 920 supporting resource signaling techniques for multiple repetitions of uplink transmissions according to an aspect of the present disclosure. Communications manager 920 may be an example of an aspect of communications manager 720, communications manager 820, or both described herein. Communications manager 920, or various components thereof, may be an example of a means for implementing various aspects of resource signaling techniques for multiple repetitions of uplink transmissions described herein. For example, communications manager 920 may include an SRS configuration manager 925, a control information manager 930, an uplink transmission parameter manager 935, an uplink communications manager 940, an SRI manager 945, a DCI format manager 950, or any combination thereof. Each of these components may communicate with one another directly or indirectly (e.g., via one or more buses).

[0136]

[0148] Communications manager 920 may support wireless communications in a UE according to examples disclosed herein. SRS configuration manager 925 may be configured with or support a means for receiving SRS configuration information from a base station indicating whether control information providing an uplink grant to the UE should include one resource indicator for SRS resources or two resource indicators for SRS resources. Control information manager 930 may be configured with or support a means for receiving first control information scheduling two or more repetitions of a first uplink communication and indicating an association between the two or more repetitions of the first uplink communication with either a first set of SRS resources, a second set of SRS resources, or both. The uplink transmission parameter manager 935 may be configured with or may support a means for determining a first set of uplink transmission parameters for the first set of repetitions of the first uplink communication and a second set of uplink transmission parameters for the second set of repetitions of the first uplink communication based on one or two resource indicators in the first control information and an indicated one or both of the first set of SRS resources or the second set of SRS resources associated with two or more repetitions of the first uplink communication. The uplink communications manager 940 may be configured with or may support a means for transmitting the first set of repetitions of the first uplink communication using the first set of uplink transmission parameters and transmitting the second set of repetitions of the first uplink communication using the second set of uplink transmission parameters.

[0137]

[0149] In some examples, a first set of SRS resources is associated with a first set of repetitions of a first uplink communication, and a second set of SRS resources is associated with a second set of repetitions of the first uplink communication, where the first set of repetitions of the first uplink communication are transmitted to a first TRP, and the second set of repetitions of the first uplink communication are transmitted to a second TRP. In some examples, the first set of repetitions of the first uplink communication and the second set of repetitions of the first uplink communication are codebook-based or non-codebook-based physical uplink shared channel transmissions.

[0138]

[0150] In some examples, to support receiving the first control information, the control information manager 930 may be configured with or may support a means for decoding a first resource indicator in the first control information that provides a first SRS resource of a first set of SRS resources. In some examples, to support receiving the first control information, the control information manager 930 may be configured with or may support a means for decoding a second resource indicator in the first control information that provides a second SRS resource of a second set of SRS resources.

[0139]

[0151] In some examples, the SRS configuration information indicates that the first control information should include two resource indicators for SRS resources, and the control information manager 930 may be configured with or support a means for identifying that the first control information indicates that a single SRS resource set is associated with the first uplink communication. In some examples, the SRS configuration information indicates that the first control information should include two resource indicators for SRS resources, and the control information manager 930 may be configured with or support a means for determining both a first set of uplink transmission parameters and a second set of uplink transmission parameters based on the first resource indicator in the first control information. In some examples, the SRS configuration information indicates that the first control information should include two resource indicators for SRS resources, and the control information manager 930 may be configured with or support a means for ignoring the second resource indicator in the first control information.

[0140]

[0152] In some examples, the SRS configuration information indicates that the first control information should include two resource indicators for the SRS resources. In some examples, the control information manager 930 may be configured with or support a means for identifying that the first control information indicates that two SRS resource sets are associated with the first uplink communication, the control information manager 930 may be configured with or support a means for determining a first set of uplink transmission parameters based on a first resource indicator of the two resource indicators in the first control information, and the control information manager 930 may be configured with or support a means for determining a second set of uplink transmission parameters based on a second resource indicator of the two resource indicators in the first control information.

[0141]

[0153] In some examples, the SRS configuration information indicates that the first control information should include a single resource indicator for SRS resources, where both the first set of uplink transmission parameters and the second set of uplink transmission parameters are determined based on the single resource indicator in the first control information. In some examples, the SRI manager 945 may be configured with or support a means for identifying that the first control information indicates that a single SRS resource set is associated with the first uplink communication. In some examples, the SRI manager 945 may be configured with or support a means for determining both the first set of uplink transmission parameters and the second set of uplink transmission parameters based on the single resource indicator and the single SRS resource set in the first control information.

[0142]

[0154] In some examples, the control information manager 930 may be configured with or may support a means for identifying that the first control information indicates that two SRS resource sets are associated with the first uplink communication. In some examples, the control information manager 930 may be configured with or may support a means for determining a first set of uplink transmission parameters based on a single resource indicator in the first control information and a first mapping between the single resource indicator and SRS resources of the first SRS resource set. In some examples, the control information manager 930 may be configured with or may support a means for determining a second set of uplink transmission parameters based on a single resource indicator in the first control information and a second mapping between the single resource indicator and SRS resources of the second SRS resource set.

[0143]

[0155] In some examples, the SRS configuration information separately configures two or more different control information formats to include one resource indicator for SRS resources or two resource indicators for SRS resources. In some examples, the first set of repetitions of the first uplink communication and the second set of repetitions of the first uplink communication are codebook-based physical uplink shared channel transmissions, and one SRS resource in each set of SRS resources is indicated per codebook-based resource indicator. In some examples, the first set of repetitions of the first uplink communication and the second set of repetitions of the first uplink communication are non-codebook-based physical uplink shared channel transmissions, and one or more SRS resources in each set of SRS resources are indicated per non-codebook-based resource indicator.

[0144]

[0156] In some examples, the first set of repetitions of the first uplink communication and the second set of repetitions of the first uplink communication are codebook-based physical uplink shared channel transmissions, and the SRS configuration information indicates that the first control information should include two resource indicators for SRS resources, where each of the two resource indicators is mapped to an SRS resource in an associated set of SRS resources having the same number of antenna ports. In some examples, the first set of repetitions of the first uplink communication and the second set of repetitions of the first uplink communication are codebook-based physical uplink shared channel transmissions, and the SRS configuration information indicates that the first control information should include two resource indicators for SRS resources, where an i-th configured SRS resource of the first SRS resource set has the same number of antenna ports as an i-th configured SRS resource of the second SRS resource set.

[0145]

[0157] In some examples, the first set of repetitions of the first uplink communication and the second set of repetitions of the first uplink communication are non-codebook-based physical uplink shared channel transmissions, and the SRS configuration information indicates that the first control information should include two resource indicators for SRS resources, where a first quantity of the indicated SRS resources in the first set of SRS resources is the same as a second quantity of the indicated SRS resources in the second set of SRS resources. In some examples, the SRS configuration information indicates that the first control information should include a single resource indicator for SRS resources in the first set of SRS resources and the second set of SRS resources. In some examples, the first set of SRS resources and the second set of SRS resources have the same number of SRS resources, or the number of bits in the single resource indicator is determined based on the maximum number of SRS resources in the first set of SRS resources or the second set of SRS resources.

[0146]

[0158] In some examples, to support receiving the first control information, the SRI manager 945 may be configured with or support a means for identifying a two-bit field within the first control information indicating whether the first uplink communication should use only the first set of SRS resources, only the second set of SRS resources, or both the first and second sets of SRS resources and determining which set of repetitions of the first uplink communication should use the first set of SRS resources and which other set of repetitions should use the second set of SRS resources. In some examples, to support receiving the first control information, the SRI manager 945 may be configured with or support a means for identifying within the first control information a single bit having a first bit value indicating that the first uplink communication should use one of the first set of SRS resources or the second set of SRS resources, or having a second bit value indicating that the first uplink communication should use both the first and second sets of SRS resources. In some examples, the first bit value provides a predetermined indication that the first uplink communication should use the first set of SRS resources. In some examples, the first bit value is configured by the SRS configuration information to indicate that the first uplink communication should use the first set of SRS resources. In some examples, the first bit value indicates that a different information field in the first control information provides an indication that the first uplink communication should use either the first set of SRS resources or the second set of SRS resources. In some examples, the indication that one of the first set of SRS resources or the second set of SRS resources is unused is provided by a reserved value of a resource indication of the associated set of SRS resources.

[0147]

[0159] 10 shows a diagram of a system 1000 including a device 1005 supporting resource signaling techniques for multiple repetitions of an uplink transmission according to an aspect of the present disclosure. The device 1005 may be an example of or include components of a device 705, a device 805, or a UE 115 described herein. The device 1005 may be in wireless communication with one or more base stations 105, UEs 115, or any combination thereof. The device 1005 may include components for two-way voice and data communication, including components for transmitting and receiving communications, such as a communications manager 1020, an input / output (I / O) controller 1010, a transceiver 1015, an antenna 1025, a memory 1030, code 1035, and a processor 1040. These components may be in electronic communication or otherwise coupled (e.g., operatively, communicatively, functionally, electronically, electrically) via one or more buses (e.g., a bus 1045).

[0148]

[0160] The I / O controller 1010 may manage input and output signals for the device 1005. The I / O controller 1010 may also manage peripheral devices not built into the device 1005. In some cases, the I / O controller 1010 may represent a physical connection or port to an external peripheral. In some cases, the I / O controller 1010 may utilize an operating system such as iOS®, ANDROID®, MS-DOS®, MS-WINDOWS®, OS / 2®, UNIX®, LINUX®, or another known operating system. Additionally or alternatively, the I / O controller 1010 may represent or interact with a modem, keyboard, mouse, touchscreen, or similar device. In some cases, the I / O controller 1010 may be implemented as part of a processor, such as the processor 1040. In some cases, a user may interact with the device 1005 through the I / O controller 1010 or through hardware components controlled by the I / O controller 1010.

[0149]

[0161] In some cases, the device 1005 may include a single antenna 1025. However, in some other cases, the device 1005 may have two or more antennas 1025 that may be capable of simultaneously transmitting or receiving multiple wireless transmissions. The transceiver 1015 may communicate bidirectionally via one or more antennas 1025, a wired link, or a wireless link, as described herein. For example, the transceiver 1015 may represent a wireless transceiver and may communicate bidirectionally with another wireless transceiver. The transceiver 1015 may also include a modem for modulating packets and providing the modulated packets to the one or more antennas 1025 for transmission, and for demodulating packets received from the one or more antennas 1025. The transceiver 1015, or the transceiver 1015 and the one or more antennas 1025, may be an example of the transmitter 715, the transmitter 815, the receiver 710, the receiver 810, or any combination thereof or components thereof, as described herein.

[0150]

[0162] The memory 1030 may include random access memory (RAM) and read-only memory (ROM). The memory 1030 may store computer-readable, computer-executable code 1035 including instructions that, when executed by the processor 1040, cause the device 1005 to perform various functions described herein. The code 1035 may be stored on a non-transitory computer-readable medium, such as system memory or another type of memory. In some cases, the code 1035 may not be directly executable by the processor 1040, but may (e.g., when compiled and executed) cause a computer to perform functions described herein. In some cases, the memory 1030 may include a basic I / O system (BIOS), which may control basic hardware or software operations, such as interaction with peripheral components or devices, among other things.

[0151]

[0163] The processor 1040 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, discrete gate or transistor logic components, discrete hardware components, or any combination thereof). In some cases, the processor 1040 may be configured to operate a memory array using a memory controller. In some other cases, the memory controller may be incorporated into the processor 1040. The processor 1040 may be configured to execute computer-readable instructions stored in a memory (e.g., the memory 1030) to cause the device 1005 to perform various functions (e.g., functions or tasks supporting resource signaling techniques for multiple iterations of uplink transmission). For example, the device 1005 or a component of the device 1005 may include the processor 1040 and the memory 1030 coupled to the processor 1040, where the processor 1040 and the memory 1030 are configured to perform various functions described herein.

[0152]

[0164] The communications manager 1020 may support wireless communications in the UE according to examples disclosed herein. For example, the communications manager 1020 may be configured with or support a means for receiving, from a base station, SRS configuration information indicating whether control information providing an uplink grant to the UE should include one resource indicator for SRS resources or two resource indicators for SRS resources. The communications manager 1020 may be configured with or support a means for receiving, from a base station, first control information that schedules two or more repetitions of a first uplink communication and indicates an association between the two or more repetitions of the first uplink communication with either a first set of SRS resources, a second set of SRS resources, or both. The communications manager 1020 may be configured with or may support a means for determining a first set of uplink transmission parameters for the first set of repetitions of the first uplink communication and a second set of uplink transmission parameters for the second set of repetitions of the first uplink communication based on one or two resource indicators in the first control information and an indicated one or both of the first set of SRS resources or the second set of SRS resources associated with two or more repetitions of the first uplink communication. The communications manager 1020 may be configured with or may support a means for transmitting the first set of repetitions of the first uplink communication using the first set of uplink transmission parameters and transmitting the second set of repetitions of the first uplink communication using the second set of uplink transmission parameters.

[0153]

[0165] By including or configuring a communications manager 1020 according to examples described herein, the device 1005 may support techniques for transmitting multiple repetitions of an uplink communication to multiple different TRPs, whereby the different repetitions may use transmission parameters that are suitable for the particular TRP associated with the repetition. Such techniques may enable improved reliability of wireless communications, thus providing more efficient utilization of communications resources, reduced power consumption (through reduced retransmissions), reduced latency (through reduced retransmissions), and more efficient utilization of communications resources.

[0154]

[0166] In some examples, communications manager 1020 may be configured to perform various operations (e.g., receiving, monitoring, transmitting) using or otherwise cooperating with transceiver 1015, one or more antennas 1025, or any combination thereof. Although communications manager 1020 is shown as a separate component, in some examples, one or more functions described with reference to communications manager 1020 may be supported by or performed by processor 1040, memory 1030, code 1035, or any combination thereof. For example, code 1035 may include instructions executable by processor 1040 to cause device 1005 to perform various aspects of resource signaling techniques for multiple iterations of uplink transmission described herein, or processor 1040 and memory 1030 may be otherwise configured to perform or support such operations.

[0155]

[0167] 11 shows a block diagram 1100 of a device 1105 that supports resource signaling techniques for multiple repetitions of uplink transmission according to an aspect of the present disclosure. The device 1105 may be an example of an aspect of a base station 105 described herein. The device 1105 may include a receiver 1110, a transmitter 1115, and a communications manager 1120. The device 1105 may also include a processor. Each of these components may communicate with each other (e.g., via one or more buses).

[0156]

[0168] The receiver 1110 may provide a means for receiving information such as packets, user data, control information, or any combination thereof, associated with various information channels (e.g., control channels, data channels, information channels related to resource signaling techniques for multiple repetitions of uplink transmissions). The information may be passed on to other components of the device 1105. The receiver 1110 may utilize a single antenna or a set of multiple antennas.

[0157]

[0169] The transmitter 1115 may provide a means for transmitting signals generated by other components of the device 1105. For example, the transmitter 1115 may transmit information such as packets, user data, control information, or any combination thereof, associated with various traffic channels (e.g., control channels, data channels, traffic channels related to resource signaling techniques for multiple repetitions of uplink transmissions). In some examples, the transmitter 1115 may be co-located with the receiver 1110 in a transceiver module. The transmitter 1115 may utilize a single antenna or a set of multiple antennas.

[0158]

[0170] The communications manager 1120, the receiver 1110, the transmitter 1115, or various combinations thereof or components thereof may be examples of means for implementing various aspects of the resource signaling techniques for multiple repetitions of uplink transmission described herein. For example, the communications manager 1120, the receiver 1110, the transmitter 1115, or various combinations or components thereof may support a method for implementing one or more of the functions described herein.

[0159]

[0171] In some examples, the communications manager 1120, the receiver 1110, the transmitter 1115, or various combinations or components thereof may be implemented in hardware (e.g., in communications management circuitry). The hardware may include a processor, a DSP, an ASIC, an FPGA or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof configured as or otherwise supporting a means for performing the functions described in this disclosure. In some examples, a processor and a memory coupled to the processor may be configured to perform one or more of the functions described herein (e.g., by the processor executing instructions stored in the memory).

[0160]

[0172] Additionally or alternatively, in some examples, the communications manager 1120, the receiver 1110, the transmitter 1115, or various combinations or components thereof may be implemented in code (e.g., as communications management software or firmware) executed by a processor. If implemented in code executed by a processor, the functionality of the communications manager 1120, the receiver 1110, the transmitter 1115, or various combinations or components thereof may be performed by a general-purpose processor, DSP, CPU, ASIC, FPGA, or any combination thereof or other programmable logic device (e.g., configured as or otherwise supporting a means for performing the functions described in this disclosure).

[0161]

[0173] In some examples, the communications manager 1120 may be configured to perform various operations (e.g., receiving, monitoring, transmitting) using or otherwise cooperating with the receiver 1110, the transmitter 1115, or both. For example, the communications manager 1120 may be incorporated in combination with the receiver 1110, the transmitter 1115, or both to receive information from the receiver 1110, send information to the transmitter 1115, receive information, transmit information, or perform various other operations described herein.

[0162]

[0174] The communications manager 1120 may support wireless communications in a base station according to examples disclosed herein. For example, the communications manager 1120 may be configured with or support a means for transmitting, to a UE, SRS configuration information indicating whether control information granting an uplink grant to the UE should include one resource indicator for SRS resources or two resource indicators for SRS resources. The communications manager 1120 may be configured with or support a means for transmitting, to the UE, first control information that schedules two or more repetitions of a first uplink communication and indicates an association between the two or more repetitions of the first uplink communication with either a first set of SRS resources, a second set of SRS resources, or both. The communications manager 1120 may be configured with or may support a means for determining a first set of uplink transmission parameters for the first set of repetitions of the first uplink communication and a second set of uplink transmission parameters for the second set of repetitions of the first uplink communication based on one or two resource indicators in the first control information and an indicated one or both of the first set of SRS resources or the second set of SRS resources associated with two or more repetitions of the first uplink communication. The communications manager 1120 may be configured with or may support a means for receiving the first set of repetitions of the first uplink communication using the first set of uplink transmission parameters and receiving the second set of repetitions of the first uplink communication using the second set of uplink transmission parameters.

[0163]

[0175] By including or configuring the communications manager 1120 according to examples described herein, the device 1105 (e.g., a processor controlling or coupled to the receiver 1110, the transmitter 1115, the communications manager 1120, or a combination thereof) may support techniques for configuring a UE for transmission of multiple repetitions of an uplink communication to multiple different TRPs, whereby the different repetitions may use transmission parameters that are suitable for the particular TRP associated with the repetition. Such techniques may enable improved reliability of wireless communications, and thus provide more efficient utilization of communications resources, reduced power consumption (through reduced retransmissions), reduced latency (through reduced retransmissions), and more efficient utilization of communications resources. Furthermore, such techniques provide flexibility in scheduling uplink communications with repetitions based on one or more SRS resource sets, which can improve network efficiency through efficient scheduling of uplink communications according to available network and wireless resources.

[0164]

[0176] 12 shows a block diagram 1200 of a device 1205 supporting resource signaling techniques for multiple repetitions of uplink transmission according to an aspect of the present disclosure. The device 1205 may be an example of an aspect of the device 1105 or base station 105 described herein. The device 1205 may include a receiver 1210, a transmitter 1215, and a communications manager 1220. The device 1205 may also include a processor. Each of these components may be in communication with each other (e.g., via one or more buses).

[0165]

[0177] The receiver 1210 may provide a means for receiving information such as packets, user data, control information, or any combination thereof, associated with various traffic channels (e.g., control channels, data channels, traffic channels related to resource signaling techniques for multiple repetitions of uplink transmissions). The information may be passed on to other components of the device 1205. The receiver 1210 may utilize a single antenna or a set of multiple antennas.

[0166]

[0178] The transmitter 1215 may provide a means for transmitting signals generated by other components of the device 1205. For example, the transmitter 1215 may transmit information such as packets associated with various traffic channels (e.g., control channels, data channels, traffic channels related to resource signaling techniques for multiple repetitions of uplink transmissions), user data, control information, or any combination thereof. In some examples, the transmitter 1215 may be co-located with the receiver 1210 in a transceiver module. The transmitter 1215 may utilize a single antenna or a set of multiple antennas.

[0167]

[0179] Device 1205, or various components thereof, may be an example of a means for implementing various aspects of the resource signaling techniques for multiple repetitions of uplink transmission described herein. For example, communications manager 1220 may include an SRS configuration manager 1225, a control information manager 1230, an uplink transmission parameter manager 1235, an uplink communications manager 1240, or any combination thereof. Communications manager 1220 may be an example of an aspect of communications manager 1120 described herein. In some examples, communications manager 1220, or various components thereof, may be configured to use or otherwise cooperate with receiver 1210, transmitter 1215, or both to perform various operations (e.g., receiving, monitoring, transmitting). For example, the communications manager 1220 may be incorporated in combination with the receiver 1210, the transmitter 1215, or both to receive information from the receiver 1210, send information to the transmitter 1215, or receive information, transmit information, or perform various other operations described herein.

[0168]

[0180] The communications manager 1220 may support wireless communications in a base station according to examples disclosed herein. The SRS configuration manager 1225 may be configured with or support a means for transmitting, to the UE, SRS configuration information indicating whether control information granting an uplink grant to the UE should include one resource indicator for the SRS resources or two resource indicators for the SRS resources. The control information manager 1230 may be configured with or support a means for transmitting, to the UE, first control information that schedules two or more repetitions of a first uplink communication and indicates an association between the two or more repetitions of the first uplink communication with either a first set of SRS resources, a second set of SRS resources, or both. The uplink transmission parameter manager 1235 may be configured with or may support a means for determining a first set of uplink transmission parameters for the first set of repetitions of the first uplink communication and a second set of uplink transmission parameters for the second set of repetitions of the first uplink communication based on one or two resource indicators in the first control information and an indicated one or both of the first set of SRS resources or the second set of SRS resources associated with two or more repetitions of the first uplink communication. The uplink communications manager 1240 may be configured with or may support a means for receiving the first set of repetitions of the first uplink communication using the first set of uplink transmission parameters and receiving the second set of repetitions of the first uplink communication using the second set of uplink transmission parameters.

[0169]

[0181] 13 shows a block diagram 1300 of a communications manager 1320 supporting resource signaling techniques for multiple repetitions of uplink transmissions according to aspects of the present disclosure. The communications manager 1320 may be an example of aspects of the communications manager 1120, the communications manager 1220, or both described herein. The communications manager 1320, or various components thereof, may be an example of a means for implementing various aspects of the resource signaling techniques for multiple repetitions of uplink transmissions described herein. For example, the communications manager 1320 may include an SRS configuration manager 1325, a control information manager 1330, an uplink transmission parameter manager 1335, an uplink communications manager 1340, an SRI manager 1345, a DCI format manager 1350, or any combination thereof. Each of these components may communicate with one another directly or indirectly (e.g., via one or more buses).

[0170]

[0182] The communications manager 1320 may support wireless communications in a base station according to examples disclosed herein. The SRS configuration manager 1325 may be configured with or support a means for transmitting, to the UE, SRS configuration information indicating whether control information granting an uplink grant to the UE should include one resource indicator for SRS resources or two resource indicators for SRS resources. The control information manager 1330 may be configured with or support a means for transmitting, to the UE, first control information that schedules two or more repetitions of a first uplink communication and indicates an association between the two or more repetitions of the first uplink communication with either a first set of SRS resources, a second set of SRS resources, or both. The uplink transmission parameter manager 1335 may be configured with or may support a means for determining a first set of uplink transmission parameters for the first set of repetitions of the first uplink communication and a second set of uplink transmission parameters for the second set of repetitions of the first uplink communication based on one or two resource indicators in the first control information and an indicated one or both of the first set of SRS resources or the second set of SRS resources associated with two or more repetitions of the first uplink communication. The uplink communications manager 1340 may be configured with or may support a means for receiving the first set of repetitions of the first uplink communication using the first set of uplink transmission parameters and receiving the second set of repetitions of the first uplink communication using the second set of uplink transmission parameters.

[0171]

[0183] In some examples, a first set of SRS resources is associated with a first set of repetitions of a first uplink communication, and a second set of SRS resources is associated with a second set of repetitions of the first uplink communication, where the first set of repetitions of the first uplink communication is transmitted to a first TRP, and the second set of repetitions of the first uplink communication is transmitted to a second TRP.

[0172]

[0184] In some examples, the first set of repetitions of the first uplink communication and the second set of repetitions of the first uplink communication are codebook-based or non-codebook-based physical uplink shared channel transmissions. In some examples, to support transmitting the first control information, the control information manager 1330 may be configured with or may support a means for transmitting a first resource indicator in the first control information that provides a first SRS resource of the first set of SRS resources. In some examples, to support transmitting the first control information, the control information manager 1330 may be configured with or may support a means for transmitting a second resource indicator in the first control information that provides a second SRS resource of the second set of SRS resources.

[0173]

[0185] In some examples, the SRS configuration information indicates that the first control information should include two resource indicators for the SRS resources. In some examples, the first control information indicates that a single SRS resource set is associated with the first uplink communication. In some examples, both the first set of uplink transmission parameters and the second set of uplink transmission parameters are based on the first resource indicator in the first control information regardless of the value of the second resource indicator in the first control information.

[0174]

[0186] In some examples, the SRS configuration information indicates that the first control information should include two resource indicators for the SRS resources. In some examples, the control information manager 1330 may be configured with or support a means for sending an indication in the first control information that two SRS resource sets are associated with the first uplink communication, and the control information manager 1330 may be configured with or support a means for the first set of uplink transmission parameters to be based on a first resource indicator of the two resource indicators in the first control information and the second set of uplink transmission parameters to be based on a second resource indicator of the two resource indicators in the first control information.

[0175]

[0187] In some examples, the SRS configuration information indicates that the first control information should include a single resource indicator for SRS resources, where both the first set of uplink transmission parameters and the second set of uplink transmission parameters are determined based on the single resource indicator in the first control information. In some examples, the SRI manager 1345 may be configured with or support means for transmitting an indication in the first control information that a single SRS resource set is associated with the first uplink communication, where both the first set of uplink transmission parameters and the second set of uplink transmission parameters are based on the single resource indicator in the first control information and the single SRS resource set.

[0176]

[0188] In some examples, the control information manager 1330 may be configured with or support a means for transmitting an indication in the first control information that two SRS resource sets are associated with the first uplink communication. In some examples, the control information manager 1330 may be configured with or support a means for basing a first set of uplink transmission parameters on a single resource indicator in the first control information and a first mapping between the single resource indicator and SRS resources of the first SRS resource set. In some examples, the control information manager 1330 may be configured with or support a means for basing a second set of uplink transmission parameters on a single resource indicator in the first control information and a second mapping between the single resource indicator and SRS resources of the second SRS resource set.

[0177]

[0189] In some examples, the SRS configuration information separately configures two or more different control information formats to include one resource indicator for the SRS resource or two resource indicators for the SRS resource.

[0178]

[0190] In some examples, the first set of repetitions of the first uplink communication and the second set of repetitions of the first uplink communication are codebook-based physical uplink shared channel transmissions, and one SRS resource in each set of SRS resources is indicated per a codebook-based resource indicator. In some examples, the first set of repetitions of the first uplink communication and the second set of repetitions of the first uplink communication are non-codebook-based physical uplink shared channel transmissions, and one or more SRS resources in each set of SRS resources are indicated per a non-codebook-based resource indicator.

[0179]

[0191] In some examples, the first set of repetitions of the first uplink communication and the second set of repetitions of the first uplink communication are codebook-based physical uplink shared channel transmissions, and the SRS configuration information indicates that the first control information should include two resource indicators for SRS resources, where each of the two resource indicators is mapped to an SRS resource in an associated set of SRS resources having the same number of antenna ports. In some examples, the first set of repetitions of the first uplink communication and the second set of repetitions of the first uplink communication are codebook-based physical uplink shared channel transmissions, and the SRS configuration information indicates that the first control information should include two resource indicators for SRS resources, where an i-th configured SRS resource of the first SRS resource set has the same number of antenna ports as an i-th configured SRS resource of the second SRS resource set.

[0180]

[0192] In some examples, the first set of repetitions of the first uplink communication and the second set of repetitions of the first uplink communication are non-codebook-based physical uplink shared channel transmissions, and the SRS configuration information indicates that the first control information should include two resource indicators for SRS resources, where a first quantity of the indicated SRS resources in the first set of SRS resources is the same as a second quantity of the indicated SRS resources in the second set of SRS resources. In some examples, the SRS configuration information indicates that the first control information should include a single resource indicator for SRS resources in the first set of SRS resources and the second set of SRS resources. In some examples, the first set of SRS resources and the second set of SRS resources have the same number of SRS resources, or the number of bits in the single resource indicator is determined based on the maximum number of SRS resources in the first set of SRS resources or the second set of SRS resources.

[0181]

[0193] In some examples, to support transmitting the first control information, the SRI manager 1345 may be configured with or support a means for transmitting a 2-bit field in the first control information indicating whether the first uplink communication should use only the first set of SRS resources, should use only the second set of SRS resources, or that the UE should use both the first set of SRS resources and the second set of SRS resources and determine which set of repetitions of the first uplink communication should use the first set of SRS resources and that the other set of repetitions should use the second set of SRS resources.

[0182]

[0194] In some examples, to support transmitting the first control information, the SRI manager 1345 may be configured with or support a means for transmitting within the first control information a single bit having a first bit value indicating that the first uplink communication should use one of the first set of SRS resources or the second set of SRS resources, or having a second bit value indicating that the first uplink communication should use both the first set of SRS resources and the second set of SRS resources.

[0183]

[0195] In some examples, the first bit value provides a predetermined indication that the first uplink communication should use the first set of SRS resources. In some examples, the first bit value is configured in the SRS configuration information to indicate that the first uplink communication should use the first set of SRS resources. In some examples, the first bit value indicates that a different information field in the first control information provides an indication that the first uplink communication should use either the first set of SRS resources or the second set of SRS resources. In some examples, the indication that one of the first set of SRS resources or the second set of SRS resources is unused is provided by a reserved value of a resource indication of the associated set of SRS resources.

[0184]

[0196] 14 shows a diagram of a system 1400 including a device 1405 supporting resource signaling techniques for multiple repetitions of an uplink transmission according to an aspect of the present disclosure. The device 1405 may be an example of or include components of the device 1105, device 1205, or base station 105 described herein. The device 1405 may be in wireless communication with one or more base stations 105, UEs 115, or any combination thereof. The device 1405 may include components for two-way voice and data communication, including components for transmitting and receiving communications, such as a communications manager 1420, a network communications manager 1410, a transceiver 1415, an antenna 1425, a memory 1430, code 1435, a processor 1440, and an inter-station communications manager 1445. These components may be in electronic communication or otherwise coupled (e.g., operatively, communicatively, functionally, electronically, electrically) via one or more buses (e.g., a bus 1450).

[0185]

[0197] The network communications manager 1410 may manage communications with the core network 130 (e.g., via one or more wired backhaul links). For example, the network communications manager 1410 may manage the forwarding of data communications for client devices, such as one or more UEs 115.

[0186]

[0198] In some cases, the device 1405 may include a single antenna 1425. However, in some other cases, the device 1405 may have two or more antennas 1425 that may be capable of simultaneously transmitting or receiving multiple wireless transmissions. The transceiver 1415 may communicate bidirectionally via one or more antennas 1425, wired links, or wireless links, as described herein. For example, the transceiver 1415 may represent a wireless transceiver and may communicate bidirectionally with another wireless transceiver. The transceiver 1415 may also include a modem for modulating packets and providing the modulated packets to one or more antennas 1425 for transmission, and for demodulating packets received from the one or more antennas 1425. The transceiver 1415, or the transceiver 1415 and one or more antennas 1425, may be an example of the transmitter 1115, the transmitter 1215, the receiver 1110, the receiver 1210, or any combination or component thereof, as described herein.

[0187]

[0199] The memory 1430 may include RAM and ROM. The memory 1430 may store computer-readable, computer-executable code 1435 including instructions that, when executed by the processor 1440, cause the device 1405 to perform various functions described herein. The code 1435 may be stored on a non-transitory computer-readable medium, such as system memory or another type of memory. In some cases, the code 1435 may not be directly executable by the processor 1440, but may (e.g., when compiled and executed) cause the computer to perform the functions described herein. In some cases, the memory 1430 may include a BIOS, which may control basic hardware or software operations, such as interaction with peripheral components or devices, among other things.

[0188]

[0200] The processor 1440 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, discrete gate or transistor logic components, discrete hardware components, or any combination thereof). In some cases, the processor 1440 may be configured to operate a memory array using a memory controller. In some other cases, the memory controller may be incorporated into the processor 1440. The processor 1440 may be configured to execute computer-readable instructions stored in a memory (e.g., memory 1430) to cause the device 1405 to perform various functions (e.g., functions or tasks supporting resource signaling techniques for multiple iterations of uplink transmission). For example, the device 1405 or a component of the device 1405 may include the processor 1440 and the memory 1430 coupled to the processor 1440, where the processor 1440 and the memory 1430 are configured to perform various functions described herein.

[0189]

[0201] The inter-station communications manager 1445 may manage communications with other base stations 105 and may include a controller or scheduler for cooperating with the other base stations 105 to control communications with the UE 115. For example, the inter-station communications manager 1445 may coordinate scheduling for transmissions to the UE 115 for various interference mitigation techniques, such as beamforming or joint transmission. In some examples, the inter-station communications manager 1445 may provide an X2 interface within the LTE / LTE-A wireless communications network technology to communicate between the base stations 105.

[0190]

[0202] The communications manager 1420 may support wireless communications in a base station according to examples disclosed herein. For example, the communications manager 1420 may be configured with or support a means for transmitting, to a UE, SRS configuration information indicating whether control information granting an uplink grant to the UE should include one resource indicator for SRS resources or two resource indicators for SRS resources. The communications manager 1420 may be configured with or support a means for transmitting, to the UE, first control information that schedules two or more repetitions of a first uplink communication and indicates an association between the two or more repetitions of the first uplink communication with either a first set of SRS resources, a second set of SRS resources, or both. The communications manager 1420 may be configured with or may support a means for determining a first set of uplink transmission parameters for the first set of repetitions of the first uplink communication and a second set of uplink transmission parameters for the second set of repetitions of the first uplink communication based on one or two resource indicators in the first control information and an indicated one or both of the first set of SRS resources or the second set of SRS resources associated with two or more repetitions of the first uplink communication. The communications manager 1420 may be configured with or may support a means for receiving the first set of repetitions of the first uplink communication using the first set of uplink transmission parameters and receiving the second set of repetitions of the first uplink communication using the second set of uplink transmission parameters.

[0191]

[0203] By including or configuring a communications manager 1420 according to examples described herein, the device 1405 may support techniques for configuring a UE for transmission of multiple repetitions of uplink communications to multiple different TRPs, whereby the different repetitions may use transmission parameters that are suitable for the particular TRP associated with the repetition. Such techniques may enable improved reliability of wireless communications, thus providing more efficient utilization of communications resources, reduced power consumption (through reduced retransmissions), reduced latency (through reduced retransmissions), and more efficient utilization of communications resources. Furthermore, such techniques provide flexibility in scheduling uplink communications with repetitions based on one or more SRS resource sets, which can improve network efficiency through efficient scheduling of uplink communications according to available network and wireless resources.

[0192]

[0204] In some examples, communications manager 1420 may be configured to perform various operations (e.g., receiving, monitoring, transmitting) using or otherwise cooperating with transceiver 1415, one or more antennas 1425, or any combination thereof. Although communications manager 1420 is shown as a separate component, in some examples, one or more functions described with reference to communications manager 1420 may be supported by or performed by processor 1440, memory 1430, code 1435, or any combination thereof. For example, code 1435 may include instructions executable by processor 1440 to cause device 1405 to perform various aspects of resource signaling techniques for multiple iterations of uplink transmission described herein, or processor 1440 and memory 1430 may be otherwise configured to perform or support such operations.

[0193]

[0205] FIG. 15 shows a flowchart illustrating a method 1500 for supporting resource signaling techniques for multiple repetitions of an uplink transmission according to an aspect of the present disclosure. The operations of method 1500 may be implemented by a UE or components thereof as described herein. For example, the operations of method 1500 may be performed by the UE 115 described with reference to FIGS. 1-10. In some examples, the UE may execute a set of instructions to control functional elements of the UE to perform the described functionality. Additionally or alternatively, the UE may use dedicated hardware to perform aspects of the described functionality.

[0194]

[0206] At 1505, the method may include receiving, from the base station, SRS configuration information indicating whether control information providing an uplink grant to the UE should include one resource indicator for the SRS resources or two resource indicators for the SRS resources. The operations of 1505 may be performed in accordance with examples disclosed herein. In some examples, aspects of the operations of 1505 may be performed by the SRS configuration manager 925 described with reference to FIG. 9.

[0195]

[0207] At 1510, the method may include receiving first control information scheduling two or more repetitions of a first uplink communication and indicating an association between the two or more repetitions of the first uplink communication with either a first set of SRS resources, a second set of SRS resources, or both. The operations of 1510 may be performed in accordance with examples disclosed herein. In some examples, aspects of the operations of 1510 may be performed by a control information manager 930 described with reference to FIG. 9.

[0196]

[0208] At 1515, the method may include determining a first set of uplink transmission parameters for the first set of repetitions of the first uplink communication and a second set of uplink transmission parameters for the second set of repetitions of the first uplink communication based on the one or two resource indicators in the first control information and an indicated one or both of the first set of SRS resources or the second set of SRS resources associated with two or more repetitions of the first uplink communication. The operations of 1515 may be performed in accordance with examples disclosed herein. In some examples, aspects of the operations of 1515 may be performed by the uplink transmission parameter manager 935 described with reference to FIG. 9.

[0197]

[0209] At 1520, the method may include transmitting a first set of repetitions of the first uplink communication using a first set of uplink transmission parameters and transmitting a second set of repetitions of the first uplink communication using a second set of uplink transmission parameters. The operations of 1520 may be performed in accordance with examples disclosed herein. In some examples, aspects of the operations of 1520 may be performed by the uplink communications manager 940 described with reference to FIG. 9.

[0198]

[0210] FIG. 16 shows a flowchart illustrating a method 1600 for supporting resource signaling techniques for multiple repetitions of an uplink transmission according to an aspect of the present disclosure. The operations of method 1600 may be implemented by a UE or components thereof as described herein. For example, the operations of method 1600 may be performed by the UE 115 described with reference to FIGS. 1-10. In some examples, the UE may execute a set of instructions to control functional elements of the UE to perform the described functionality. Additionally or alternatively, the UE may use dedicated hardware to perform aspects of the described functionality.

[0199]

[0211] At 1605, the method may include receiving, from the base station, SRS configuration information indicating whether control information providing an uplink grant to the UE should include one resource indicator for the SRS resources or two resource indicators for the SRS resources. The operations of 1605 may be performed in accordance with examples disclosed herein. In some examples, aspects of the operations of 1605 may be performed by the SRS configuration manager 925 described with reference to FIG. 9.

[0200]

[0212] At 1610, the method may include decoding a first resource indicator in first control information that provides a first SRS resource of a first set of SRS resources for a first uplink communication. The operations of 1610 may be performed in accordance with examples disclosed herein. In some examples, aspects of the operations of 1610 may be performed by the control information manager 930 described with reference to FIG. 9.

[0201]

[0213] At 1615, the method may include decoding a second resource indicator in the first control information that provides a second SRS resource of the second set of SRS resources for the first uplink communication. The operations of 1615 may be performed in accordance with examples disclosed herein. In some examples, aspects of the operations of 1615 may be performed by the control information manager 930 described with reference to FIG. 9.

[0202]

[0214] At 1620, the method may include determining, based at least in part on the first resource indicator and the second resource indicator, a first set of uplink transmission parameters for a first set of repetitions of the first uplink communication and a second set of uplink transmission parameters for a second set of repetitions of the first uplink communication. The operations of 1620 may be performed in accordance with examples disclosed herein. In some examples, aspects of the operations of 1620 may be performed by the uplink transmission parameter manager 935 described with reference to FIG. 9.

[0203]

[0215] At 1625, the method may include transmitting a first set of repetitions of the first uplink communication using a first set of uplink transmission parameters and transmitting a second set of repetitions of the first uplink communication using a second set of uplink transmission parameters. The operations of 1625 may be performed in accordance with examples disclosed herein. In some examples, aspects of the operations of 1625 may be performed by the uplink communications manager 940 described with reference to FIG. 9.

[0204]

[0216] FIG. 17 shows a flowchart illustrating a method 1700 for supporting resource signaling techniques for multiple repetitions of an uplink transmission according to an aspect of the present disclosure. The operations of method 1700 may be implemented by a UE or components thereof described herein. For example, the operations of method 1700 may be performed by the UE 115 described with reference to FIGS. 1-10. In some examples, the UE may execute a set of instructions to control functional elements of the UE to perform the described functionality. Additionally or alternatively, the UE may use dedicated hardware to perform aspects of the described functionality.

[0205]

[0217] At 1705, the method may include receiving, from the base station, SRS configuration information indicating whether control information providing an uplink grant to the UE should include one resource indicator for the SRS resources or two resource indicators for the SRS resources. The operations of 1705 may be performed in accordance with examples disclosed herein. In some examples, aspects of the operations of 1705 may be performed by the SRS configuration manager 925 described with reference to FIG. 9.

[0206]

[0218] At 1710, the method may include receiving first control information scheduling two or more repetitions of the first uplink communication. The operations of 1710 may be performed in accordance with examples disclosed herein. In some examples, aspects of the operations of 1710 may be performed by the control information manager 930 described with reference to FIG. 9.

[0207]

[0219] At 1715, the method may include identifying that the first control information indicates that a single SRS resource set is associated with the first uplink communication. The operations of 1715 may be performed in accordance with examples disclosed herein. In some examples, aspects of the operations of 1715 may be performed by the control information manager 930 described with reference to FIG. 9.

[0208]

[0220] At 1720, the method may include determining a first set of uplink transmission parameters for a first set of repetitions of the first uplink communication and a second set of uplink transmission parameters for a second set of repetitions of the first uplink communication based on the first resource indicator in the first control information. The operations of 1720 may be performed in accordance with examples disclosed herein. In some examples, aspects of the operations of 1720 may be performed by a control information manager 930 described with reference to FIG. 9.

[0209]

[0221] At 1725, the method may include ignoring the second resource indicator in the first control information. The operations of 1725 may be performed in accordance with examples disclosed herein. In some examples, aspects of the operations of 1725 may be performed by the control information manager 930 described with reference to FIG. 9.

[0210]

[0222] At 1730, the method may include transmitting a first set of repetitions of the first uplink communication using a first set of uplink transmission parameters and transmitting a second set of repetitions of the first uplink communication using a second set of uplink transmission parameters. The operations of 1730 may be performed in accordance with examples disclosed herein. In some examples, aspects of the operations of 1730 may be performed by the uplink communications manager 940 described with reference to FIG. 9.

[0211]

[0223] FIG. 18 shows a flowchart illustrating a method 1800 for supporting resource signaling techniques for multiple repetitions of an uplink transmission according to an aspect of the present disclosure. The operations of method 1800 may be implemented by a UE or components thereof as described herein. For example, the operations of method 1800 may be performed by the UE 115 described with reference to FIGS. 1-10. In some examples, the UE may execute a set of instructions to control functional elements of the UE to perform the described functionality. Additionally or alternatively, the UE may use dedicated hardware to perform aspects of the described functionality.

[0212]

[0224] At 1805, the method may include receiving, from the base station, SRS configuration information indicating whether control information providing an uplink grant to the UE should include one resource indicator for the SRS resources or two resource indicators for the SRS resources. The operations of 1805 may be performed in accordance with examples disclosed herein. In some examples, aspects of the operations of 1805 may be performed by the SRS configuration manager 925 described with reference to FIG. 9.

[0213]

[0225] At 1810, the method may include receiving first control information scheduling two or more repetitions of a first uplink communication and indicating an association between the two or more repetitions of the first uplink communication with either a first set of SRS resources, a second set of SRS resources, or both. The operations of 1810 may be performed in accordance with examples disclosed herein. In some examples, aspects of the operations of 1810 may be performed by a control information manager 930 described with reference to FIG. 9.

[0214]

[0226] At 1815, the method may include identifying that the first control information indicates that two SRS resource sets are associated with the first uplink communication. The operations of 1815 may be performed in accordance with examples disclosed herein. In some examples, aspects of the operations of 1815 may be performed by the control information manager 930 described with reference to FIG. 9.

[0215]

[0227] At 1820, the method may include determining a second set of uplink transmission parameters for a second set of repetitions of the first uplink communication based at least in part on a second resource indicator of the two resource indicators in the first control information. The operations of 1820 may be performed in accordance with examples disclosed herein. In some examples, aspects of the operations of 1820 may be performed by the control information manager 930 described with reference to FIG. 9.

[0216]

[0228] At 1825, the method may include determining a first set of uplink transmission parameters for a first set of repetitions of the first uplink communication based at least in part on a first resource indicator of the two resource indicators in the first control information. The operations of 1825 may be performed in accordance with examples disclosed herein. In some examples, aspects of the operations of 1825 may be performed by the control information manager 930 described with reference to FIG. 9.

[0217]

[0229] At 1830, the method may include transmitting a first set of repetitions of the first uplink communication using a first set of uplink transmission parameters and transmitting a second set of repetitions of the first uplink communication using a second set of uplink transmission parameters. The operations of 1830 may be performed in accordance with examples disclosed herein. In some examples, aspects of the operations of 1830 may be performed by the uplink communications manager 940 described with reference to FIG. 9.

[0218]

[0230] FIG. 19 shows a flowchart illustrating a method 1900 for supporting resource signaling techniques for multiple repetitions of an uplink transmission according to an aspect of the present disclosure. The operations of method 1900 may be implemented by a UE or components thereof as described herein. For example, the operations of method 1900 may be performed by the UE 115 described with reference to FIGS. 1-10. In some examples, the UE may execute a set of instructions to control functional elements of the UE to perform the described functionality. Additionally or alternatively, the UE may use dedicated hardware to perform aspects of the described functionality.

[0219]

[0231] At 1905, the method may include receiving, from the base station, SRS configuration information indicating whether control information providing an uplink grant to the UE should include one resource indicator for the SRS resources or two resource indicators for the SRS resources. The operations of 1905 may be performed in accordance with examples disclosed herein. In some examples, aspects of the operations of 1905 may be performed by the SRS configuration manager 925 described with reference to FIG. 9.

[0220]

[0232] At 1910, the method may include receiving first control information scheduling two or more repetitions of the first uplink communication and indicating that the first control information should include a single resource indicator for the SRS resource. The operations of 1910 may be performed in accordance with examples disclosed herein. In some examples, aspects of the operations of 1910 may be performed by the control information manager 930 described with reference to FIG. 9.

[0221]

[0233] At 1915, the method may include determining both the first set of uplink transmission parameters and the second set of uplink transmission parameters based on the single resource indicator in the first control information and the single SRS resource set. The operations of 1915 may be performed in accordance with examples disclosed herein. In some examples, aspects of the operations of 1915 may be performed by the uplink transmission parameter manager 935 described with reference to FIG. 9.

[0222]

[0234] At 1920, the method may include transmitting a first set of repetitions of the first uplink communication using a first set of uplink transmission parameters and transmitting a second set of repetitions of the first uplink communication using a second set of uplink transmission parameters. The operations of 1920 may be performed in accordance with examples disclosed herein. In some examples, aspects of the operations of 1920 may be performed by the uplink communications manager 940 described with reference to FIG. 9.

[0223]

[0235] FIG. 20 shows a flowchart illustrating a method 2000 for supporting resource signaling techniques for multiple repetitions of an uplink transmission according to an aspect of the present disclosure. The operations of method 2000 may be implemented by a UE or components thereof as described herein. For example, the operations of method 2000 may be performed by the UE 115 described with reference to FIGS. 1-10. In some examples, the UE may execute a set of instructions to control functional elements of the UE to perform the described functionality. Additionally or alternatively, the UE may use dedicated hardware to perform aspects of the described functionality.

[0224]

[0236] At 2005, the method may include receiving, from the base station, SRS configuration information indicating that the first control information should include a single resource indicator for the SRS resource. The operations of 2005 may be performed in accordance with examples disclosed herein. In some examples, aspects of the operations of 2005 may be performed by the SRS configuration manager 925 described with reference to FIG. 9.

[0225]

[0237] At 2010, the method may include receiving first control information scheduling two or more repetitions of a first uplink communication and indicating an association between the two or more repetitions of the first uplink communication with either a first set of SRS resources, a second set of SRS resources, or both. The operations of 2010 may be performed in accordance with examples disclosed herein. In some examples, aspects of the operations of 2010 may be performed by a control information manager 930 described with reference to FIG. 9.

[0226]

[0238] At 2015, the method may include identifying that the first control information indicates that two SRS resource sets are associated with the first uplink communication. The operations of 2015 may be performed in accordance with examples disclosed herein. In some examples, aspects of the operations of 2015 may be performed by the SRI manager 945 described with reference to FIG. 9.

[0227]

[0239] At 2020, the method may include determining a first set of uplink transmission parameters based on the single resource indicator in the first control information and a first mapping between the single resource indicator and SRS resources of the first SRS resource set. The operations of 2020 may be performed in accordance with examples disclosed herein. In some examples, aspects of the operations of 2020 may be performed by a control information manager 930 described with reference to FIG. 9.

[0228]

[0240] At 2030, the method may include determining a second set of uplink transmission parameters based on the single resource indicator in the first control information and a second mapping between the single resource indicator and the SRS resources of the second SRS resource set. The operations of 2030 may be performed in accordance with examples disclosed herein. In some examples, aspects of the operations of 2030 may be performed by a control information manager 930 described with reference to FIG. 9.

[0229]

[0241] At 2030, the method may include transmitting a first set of repetitions of the first uplink communication using a first set of uplink transmission parameters and transmitting a second set of repetitions of the first uplink communication using a second set of uplink transmission parameters. The operations of 2030 may be performed in accordance with examples disclosed herein. In some examples, aspects of the operations of 2030 may be performed by the uplink communications manager 940 described with reference to FIG. 9.

[0230]

[0242] FIG. 21 shows a flowchart illustrating a method 2100 for supporting resource signaling techniques for multiple repetitions of uplink transmissions according to an aspect of the present disclosure. The operations of method 2100 may be implemented by a base station or components thereof as described herein. For example, the operations of method 2100 may be performed by base station 105 as described with reference to FIGS. 1-6 and 11-14. In some examples, the base station may execute a set of instructions to control functional elements of the base station to perform the described functions. Additionally or alternatively, the base station may use dedicated hardware to perform aspects of the described functions.

[0231]

[0243] At 2105, the method may include transmitting, to the UE, SRS configuration information indicating whether control information providing an uplink grant to the UE should include one resource indicator for the SRS resource or two resource indicators for the SRS resource. The operations of 2105 may be performed in accordance with examples disclosed herein. In some examples, aspects of the operations of 2105 may be performed by the SRS configuration manager 1325 described with reference to FIG. 13.

[0232]

[0244] At 2110, the method may include transmitting first control information to the UE scheduling two or more repetitions of the first uplink communication and indicating an association between the two or more repetitions of the first uplink communication with either a first set of SRS resources, a second set of SRS resources, or both. The operations of 2110 may be performed in accordance with examples disclosed herein. In some examples, aspects of the operations of 2110 may be performed by the control information manager 1330 described with reference to FIG. 13.

[0233]

[0245] At 2115, the method may include determining a first set of uplink transmission parameters for the first set of repetitions of the first uplink communication and a second set of uplink transmission parameters for the second set of repetitions of the first uplink communication based on one or two resource indicators in the first control information and an indicated one or both of a first set of SRS resources or a second set of SRS resources associated with two or more repetitions of the first uplink communication. The operations of 2115 may be performed in accordance with examples disclosed herein. In some examples, aspects of the operations of 2115 may be performed by an uplink transmission parameter manager 1335 described with reference to FIG. 13.

[0234]

[0246] At 2120, the method may include receiving a first set of repetitions of the first uplink communication using a first set of uplink transmission parameters and receiving a second set of repetitions of the first uplink communication using a second set of uplink transmission parameters. The operations of 2120 may be performed in accordance with examples disclosed herein. In some examples, aspects of the operations of 2120 may be performed by the uplink communications manager 1340 described with reference to FIG. 13.

[0235]

[0247] FIG. 22 shows a flowchart illustrating a method 2200 for supporting resource signaling techniques for multiple repetitions of uplink transmissions according to an aspect of the present disclosure. The operations of method 2200 may be implemented by a base station or components thereof as described herein. For example, the operations of method 2200 may be performed by base station 105 as described with reference to FIGS. 1-6 and 11-14. In some examples, the base station may execute a set of instructions to control functional elements of the base station to perform the described functions. Additionally or alternatively, the base station may use dedicated hardware to perform aspects of the described functions.

[0236]

[0248] At 2205, the method may include transmitting, to the UE, SRS configuration information indicating whether control information providing an uplink grant to the UE should include one resource indicator for the SRS resource or two resource indicators for the SRS resource. The operations of 2205 may be performed in accordance with examples disclosed herein. In some examples, aspects of the operations of 2205 may be performed by the SRS configuration manager 1325 described with reference to FIG. 13.

[0237]

[0249] At 2210, the method may include transmitting a first resource indicator in first control information that provides a first SRS resource of a first set of SRS resources. The operations of 2215 may be performed in accordance with examples disclosed herein. In some examples, aspects of the operations of 2215 may be performed by the control information manager 1330 described with reference to FIG. 13.

[0238]

[0250] At 2215, the method may include transmitting a second resource indicator in the first control information that provides a second SRS resource of the second set of SRS resources. The operations of 2215 may be performed in accordance with examples disclosed herein. In some examples, aspects of the operations of 2215 may be performed by the control information manager 1330 described with reference to FIG. 13.

[0239]

[0251] At 2220, the method may include receiving a first set of repetitions of the first uplink communication using a first set of uplink transmission parameters and receiving a second set of repetitions of the first uplink communication using a second set of uplink transmission parameters. The operations of 2220 may be performed in accordance with examples disclosed herein. In some examples, aspects of the operations of 2220 may be performed by the uplink communications manager 1340 described with reference to FIG. 13.

[0240]

[0252] FIG. 23 shows a flowchart illustrating a method 2300 for supporting resource signaling techniques for multiple repetitions of uplink transmissions according to an aspect of the present disclosure. The operations of method 2300 may be implemented by a base station or components thereof as described herein. For example, the operations of method 2300 may be performed by base station 105 as described with reference to FIGS. 1-6 and 11-14. In some examples, the base station may execute a set of instructions to control functional elements of the base station to perform the described functions. Additionally or alternatively, the base station may use dedicated hardware to perform aspects of the described functions.

[0241]

[0253] At 2305, the method may include transmitting, to the UE, SRS configuration information indicating that control information providing an uplink grant to the UE should include two resource indicators for the SRS resource. The operations of 2305 may be performed in accordance with examples disclosed herein. In some examples, aspects of the operations of 2305 may be performed by the SRS configuration manager 1325 described with reference to FIG. 13.

[0242]

[0254] At 2310, the method may include transmitting in first control information an indication that two SRS resource sets are associated with the first uplink communication, where a first set of uplink transmission parameters is based on a first resource indicator of two resource indicators in the first control information and a second set of uplink transmission parameters is based on a second resource indicator of the two resource indicators in the first control information. The operations of 2310 may be performed in accordance with examples disclosed herein. In some examples, aspects of the operations of 2310 may be performed by a control information manager 1330 described with reference to FIG. 13.

[0243]

[0255] At 2315, the method may include determining, based on the two resource indicators in the first control information and the first and second sets of SRS resources associated with two or more repetitions of the first uplink communication, a first set of uplink transmission parameters for the first set of repetitions of the first uplink communication and a second set of uplink transmission parameters for the second set of repetitions of the first uplink communication. The operations of 2315 may be performed in accordance with examples disclosed herein. In some examples, aspects of the operations of 2315 may be performed by an uplink transmission parameter manager 1335 described with reference to FIG. 13.

[0244]

[0256] At 2320, the method may include receiving a first set of repetitions of the first uplink communication using a first set of uplink transmission parameters and receiving a second set of repetitions of the first uplink communication using a second set of uplink transmission parameters. The operations of 2320 may be performed in accordance with examples disclosed herein. In some examples, aspects of the operations of 2320 may be performed by the uplink communications manager 1340 described with reference to FIG. 13.

[0245]

[0257] FIG. 24 shows a flowchart illustrating a method 2400 for supporting resource signaling techniques for multiple repetitions of uplink transmissions according to an aspect of the present disclosure. The operations of method 2400 may be implemented by a base station or components thereof as described herein. For example, the operations of method 2400 may be performed by base station 105 as described with reference to FIGS. 1-6 and 11-14. In some examples, the base station may execute a set of instructions to control functional elements of the base station to perform the described functions. Additionally or alternatively, the base station may use dedicated hardware to perform aspects of the described functions.

[0246]

[0258] At 2405, the method may include transmitting, to the UE, SRS configuration information indicating that control information providing an uplink grant to the UE should include one resource indicator for the SRS resource. The operations of 2405 may be performed in accordance with examples disclosed herein. In some examples, aspects of the operations of 2405 may be performed by the SRS configuration manager 1325 described with reference to FIG. 13.

[0247]

[0259] At 2410, the method may include transmitting first control information to the UE scheduling two or more repetitions of the first uplink communication and indicating an association between the two or more repetitions of the first uplink communication with a first set of SRS resources. The operations of 2410 may be performed in accordance with examples disclosed herein. In some examples, aspects of the operations of 2410 may be performed by the control information manager 1330 described with reference to FIG. 13.

[0248]

[0260] At 2415, the method may include determining a first set of uplink transmission parameters for a first set of repetitions of the first uplink communication and a second set of uplink transmission parameters for a second set of repetitions of the first uplink communication based on the single resource indicator in the first control information and a first mapping between the single resource indicator and SRS resources of the first SRS resource set, and determining the second set of uplink transmission parameters based on the second mapping between the single resource indicator and SRS resources of the second SRS resource set. The operations of 2415 may be performed in accordance with examples disclosed herein. In some examples, aspects of the operations of 2415 may be performed by the uplink transmission parameter manager 1335 described with reference to FIG. 13.

[0249]

[0261] At 2420, the method may include receiving a first set of repetitions of the first uplink communication using a first set of uplink transmission parameters and receiving a second set of repetitions of the first uplink communication using a second set of uplink transmission parameters. The operations of 2420 may be performed in accordance with examples disclosed herein. In some examples, aspects of the operations of 2420 may be performed by the uplink communications manager 1340 described with reference to FIG. 13.

[0250]

[0262] The following provides a summary of aspects of the present disclosure.

[0251]

[0263] Aspect 1: A method for wireless communication in a UE, comprising: receiving, from a base station, SRS configuration information indicating whether control information providing an uplink grant to the UE should include one resource indicator for SRS resources or two resource indicators for SRS resources; receiving first control information scheduling two or more repetitions of a first uplink communication and indicating an association between the two or more repetitions of the first uplink communication with either a first set of SRS resources, a second set of SRS resources, or both; and associating the one or two resource indicators in the first control information with the first uplink communication. determining a first set of uplink transmission parameters for a first set of repetitions of a first uplink communication and a second set of uplink transmission parameters for a second set of repetitions of the first uplink communication based at least in part on an indicated one or both of a first set of SRS resources or a second set of SRS resources associated with two or more repetitions of the uplink communication; and transmitting the first set of repetitions of the first uplink communication using the first set of uplink transmission parameters and transmitting the second set of repetitions of the first uplink communication using the second set of uplink transmission parameters.

[0252]

[0264] Aspect 2: The method of aspect 1, wherein a first set of SRS resources is associated with a first set of repetitions of a first uplink communication, and a second set of SRS resources is associated with a second set of repetitions of the first uplink communication, wherein the first set of repetitions of the first uplink communication is transmitted to a first TRP, and the second set of repetitions of the first uplink communication is transmitted to a second TRP.

[0253]

[0265] Aspect 3: The method of any one of aspects 1 to 2, wherein the first set of repetitions of the first uplink communication and the second set of repetitions of the first uplink communication are codebook-based or non-codebook-based physical uplink shared channel transmissions.

[0254]

[0266] Aspect 4: The method of any one of aspects 1 to 3, wherein receiving the first control information further comprises decoding a first resource indicator in the first control information that provides a first SRS resource of the first set of SRS resources, and decoding a second resource indicator in the first control information that provides a second SRS resource of the second set of SRS resources.

[0255]

[0267] Aspect 5: The method of any of aspects 1 to 4, wherein the SRS configuration information indicates that the first control information should include two resource indicators for SRS resources, wherein the method further comprises: identifying that the first control information indicates that a single SRS resource set is associated with the first uplink communication; determining both a first set of uplink transmission parameters and a second set of uplink transmission parameters based at least in part on the first resource indicator in the first control information; and ignoring the second resource indicator in the first control information.

[0256]

[0268] Aspect 6: The method of any of aspects 1 to 5, wherein the SRS configuration information indicates that the first control information should include two resource indicators for SRS resources, wherein the method further comprises: identifying that the first control information indicates that two SRS resource sets are associated with the first uplink communication; determining a first set of uplink transmission parameters based at least in part on a first resource indicator of the two resource indicators in the first control information; and determining a second set of uplink transmission parameters based at least in part on a second resource indicator of the two resource indicators in the first control information.

[0257]

[0269] Aspect 7: The method of any of aspects 1 to 6, wherein the SRS configuration information indicates that the first control information should include a single resource indicator for the SRS resource, and wherein both the first set of uplink transmission parameters and the second set of uplink transmission parameters are determined based at least in part on the single resource indicator in the first control information.

[0258]

[0270] Aspect 8: The method of aspect 7, further comprising: identifying that the first control information indicates that a single SRS resource set is associated with the first uplink communication; and determining both a first set of uplink transmission parameters and a second set of uplink transmission parameters based at least in part on the single resource indicator and the single SRS resource set in the first control information.

[0259]

[0271] Aspect 9: The method of any of aspects 7 to 8, further comprising: identifying that first control information indicates that two SRS resource sets are associated with the first uplink communication; determining a first set of uplink transmission parameters based at least in part on the single resource indicator in the first control information and a first mapping between the single resource indicator and SRS resources of the first SRS resource set; and determining a second set of uplink transmission parameters based at least in part on the single resource indicator in the first control information and a second mapping between the single resource indicator and SRS resources of the second SRS resource set.

[0260]

[0272] Aspect 10: A method according to any one of aspects 1 to 9, wherein the SRS configuration information separately configures two or more different control information formats to include one resource indicator for the SRS resource or two resource indicators for the SRS resource.

[0261]

[0273] Aspect 11: The method of any of aspects 1 to 10, wherein the first set of repetitions of the first uplink communication and the second set of repetitions of the first uplink communication are codebook-based physical uplink shared channel transmissions, and one SRS resource in each set of SRS resources is indicated per codebook-based resource indicator, or the first set of repetitions of the first uplink communication and the second set of repetitions of the first uplink communication are non-codebook-based physical uplink shared channel transmissions, and one or more SRS resources in each set of SRS resources are indicated per non-codebook-based resource indicator.

[0262]

[0274] Aspect 12: The method of any of aspects 1 to 11, wherein the first set of repetitions of the first uplink communication and the second set of repetitions of the first uplink communication are codebook-based physical uplink shared channel transmissions, and the SRS configuration information indicates that the first control information should include two resource indicators for SRS resources, wherein each of the two resource indicators is mapped to an SRS resource in an associated set of SRS resources having the same number of antenna ports.

[0263]

[0275] Aspect 13: The method of any of aspects 1 to 12, wherein the first set of repetitions of the first uplink communication and the second set of repetitions of the first uplink communication are codebook-based physical uplink shared channel transmissions, and the SRS configuration information indicates that the first control information should include two resource indicators for the SRS resources, where the i-th configured SRS resource of the first SRS resource set has the same number of antenna ports as the i-th configured SRS resource of the second SRS resource set.

[0264]

[0276] Aspect 14: The method of any of aspects 1 to 13, wherein the first set of repetitions of the first uplink communication and the second set of repetitions of the first uplink communication are non-codebook-based physical uplink shared channel transmissions, and the SRS configuration information indicates that the first control information should include two resource indicators for SRS resources, wherein a first amount of the indicated SRS resources in the first set of SRS resources is the same amount as a second amount of the indicated SRS resources in the second set of SRS resources.

[0265]

[0277] Aspect 15: The method of any of aspects 1 to 14, wherein the SRS configuration information indicates that the first control information should include a single resource indicator for SRS resources within a first set of SRS resources and a second set of SRS resources, and the first set of SRS resources and the second set of SRS resources have the same number of SRS resources, or the number of bits in the single resource indicator is determined at least in part based on a maximum number of SRS resources in the first set of SRS resources or the second set of SRS resources.

[0266]

[0278] Aspect 16: The method of any of aspects 1 to 15, wherein receiving the first control information further comprises identifying a 2-bit field within the first control information indicating whether the first uplink communication should use only the first set of SRS resources, only the second set of SRS resources, or both the first set of SRS resources and the second set of SRS resources, and determining which set of repetitions of the first uplink communication should use the first set of SRS resources and which other set of repetitions should use the second set of SRS resources.

[0267]

[0279] Aspect 17: The method of any of aspects 1 to 16, wherein receiving the first control information further comprises identifying within the first control information a single bit having a first bit value indicating that the first uplink communication should use one of the first set of SRS resources or the second set of SRS resources, or having a second bit value indicating that the first uplink communication should use both the first set of SRS resources and the second set of SRS resources.

[0268]

[0280] Aspect 18: The method of aspect 17, wherein the first bit value provides a predetermined indication that the first uplink communication should use the first set of SRS resources, the first bit value is configured by the SRS configuration information to indicate that the first uplink communication should use the first set of SRS resources, or the first bit value indicates that a different information field in the first control information provides an indication that the first uplink communication should use either the first set of SRS resources or the second set of SRS resources.

[0269]

[0281] Aspect 19: The method of any of aspects 1 to 18, wherein the indication that one of the first set of SRS resources or the second set of SRS resources is unused is provided by a reserved value of a resource indication of the associated set of SRS resources.

[0270]

[0282] Aspect 20: A method for wireless communication in a base station, comprising: transmitting, to a UE, SRS configuration information indicating whether control information granting an uplink grant to the UE should include one resource indicator for SRS resources or two resource indicators for SRS resources; transmitting, to the UE, first control information scheduling two or more repetitions of a first uplink communication and indicating an association between the two or more repetitions of the first uplink communication with either a first set of SRS resources, a second set of SRS resources, or both; and transmitting, to the UE, first control information scheduling two or more repetitions of a first uplink communication and indicating an association between the one or two resource indicators in the first control information and the first set of SRS resources. determining a first set of uplink transmission parameters for the first set of repetitions of the first uplink communication and a second set of uplink transmission parameters for the second set of repetitions of the first uplink communication based at least in part on an indicated one or both of a first set of SRS resources or a second set of SRS resources associated with two or more repetitions of the uplink communication; and receiving the first set of repetitions of the first uplink communication using the first set of uplink transmission parameters and receiving the second set of repetitions of the first uplink communication using the second set of uplink transmission parameters.

[0271]

[0283] Aspect 21: The method of aspect 20, wherein a first set of SRS resources is associated with a first set of repetitions of a first uplink communication, and a second set of SRS resources is associated with a second set of repetitions of the first uplink communication, wherein the first set of repetitions of the first uplink communication is transmitted to a first TRP, and the second set of repetitions of the first uplink communication is transmitted to a second TRP.

[0272]

[0284] Aspect 22: The method of any of aspects 20 to 21, wherein the first set of repetitions of the first uplink communication and the second set of repetitions of the first uplink communication are codebook-based or non-codebook-based physical uplink shared channel transmissions.

[0273]

[0285] Aspect 23: The method of any of aspects 20 to 22, wherein transmitting the first control information further comprises transmitting a first resource indicator in the first control information that provides a first SRS resource of a first set of SRS resources, and transmitting a second resource indicator in the first control information that provides a second SRS resource of a second set of SRS resources.

[0274]

[0286] Aspect 24: The method of any of aspects 20 to 23, wherein the SRS configuration information indicates that the first control information should include two resource indicators for SRS resources, the first control information indicates that a single SRS resource set is associated with the first uplink communication, and both the first set of uplink transmission parameters and the second set of uplink transmission parameters are based at least in part on the first resource indicator in the first control information regardless of the value of the second resource indicator in the first control information.

[0275]

[0287] Aspect 25: The method of any of aspects 20 to 24, wherein the SRS configuration information indicates that the first control information should include two resource indicators for SRS resources, wherein the method further comprises: transmitting in the first control information an indication that two SRS resource sets are associated with the first uplink communication, wherein a first set of uplink transmission parameters is based at least in part on a first resource indicator of the two resource indicators in the first control information, and wherein a second set of uplink transmission parameters is based at least in part on a second resource indicator of the two resource indicators in the first control information.

[0276]

[0288] Aspect 26: The method of any of aspects 20 to 25, wherein the SRS configuration information indicates that the first control information should include a single resource indicator for the SRS resource, and wherein both the first set of uplink transmission parameters and the second set of uplink transmission parameters are determined based at least in part on the single resource indicator in the first control information.

[0277]

[0289] Aspect 27: The method of aspect 26, further comprising: transmitting, in the first control information, an indication that a single SRS resource set is associated with the first uplink communication, wherein both the first set of uplink transmission parameters and the second set of uplink transmission parameters are based at least in part on the single resource indicator and the single SRS resource set in the first control information.

[0278]

[0290] Aspect 28: The method of any of aspects 26 to 27, further comprising: transmitting, in the first control information, an indication that two SRS resource sets are associated with the first uplink communication, wherein a first set of uplink transmission parameters is based at least in part on a single resource indicator in the first control information and a first mapping between the single resource indicator and SRS resources of the first SRS resource set, and a second set of uplink transmission parameters is based at least in part on a single resource indicator in the first control information and a second mapping between the single resource indicator and SRS resources of the second SRS resource set.

[0279]

[0291] Aspect 29: The method of any of aspects 20 to 28, wherein the SRS configuration information separately configures two or more different control information formats to include one resource indicator for the SRS resource or two resource indicators for the SRS resource.

[0280]

[0292] Aspect 30: The method of any of aspects 20 to 29, wherein the first set of repetitions of the first uplink communication and the second set of repetitions of the first uplink communication are codebook-based physical uplink shared channel transmissions, and one SRS resource in each set of SRS resources is indicated per codebook-based resource indicator, or the first set of repetitions of the first uplink communication and the second set of repetitions of the first uplink communication are non-codebook-based physical uplink shared channel transmissions, and one or more SRS resources in each set of SRS resources are indicated per non-codebook-based resource indicator.

[0281]

[0293] Aspect 31: The method of any of aspects 20 to 30, wherein the first set of repetitions of the first uplink communication and the second set of repetitions of the first uplink communication are codebook-based physical uplink shared channel transmissions, and the SRS configuration information indicates that the first control information should include two resource indicators for SRS resources, wherein each of the two resource indicators is mapped to an SRS resource in an associated set of SRS resources having the same number of antenna ports.

[0282]

[0294] Aspect 32: The method of any of aspects 20 to 31, wherein the first set of repetitions of the first uplink communication and the second set of repetitions of the first uplink communication are codebook-based physical uplink shared channel transmissions, and the SRS configuration information indicates that the first control information should include two resource indicators for the SRS resources, where the i-th configured SRS resource of the first SRS resource set has the same number of antenna ports as the i-th configured SRS resource of the second SRS resource set.

[0283]

[0295] Aspect 33: The method of any of aspects 20 to 32, wherein the first set of repetitions of the first uplink communication and the second set of repetitions of the first uplink communication are non-codebook-based physical uplink shared channel transmissions, and the SRS configuration information indicates that the first control information should include two resource indicators for SRS resources, wherein a first amount of the indicated SRS resources in the first set of SRS resources is the same amount as a second amount of the indicated SRS resources in the second set of SRS resources.

[0284]

[0296] Aspect 34: The method of any of aspects 20 to 33, wherein the SRS configuration information indicates that the first control information should include a single resource indicator for SRS resources within a first set of SRS resources and a second set of SRS resources, and the first set of SRS resources and the second set of SRS resources have the same number of SRS resources, or the number of bits in the single resource indicator is determined at least in part based on a maximum number of SRS resources in the first set of SRS resources or the second set of SRS resources.

[0285]

[0297] Aspect 35: The method of any of aspects 20 to 34, wherein transmitting the first control information further comprises transmitting a 2-bit field in the first control information indicating whether the first uplink communication should use only the first set of SRS resources, should use only the second set of SRS resources, or should the UE use both the first set of SRS resources and the second set of SRS resources and determine which set of repetitions of the first uplink communication should use the first set of SRS resources and which other set of repetitions should use the second set of SRS resources.

[0286]

[0298] Aspect 36: The method of any of aspects 20 to 35, wherein transmitting the first control information further comprises transmitting within the first control information a single bit having a first bit value indicating that the first uplink communication should use one of the first set of SRS resources or the second set of SRS resources, or a second bit value indicating that the first uplink communication should use both the first set of SRS resources and the second set of SRS resources.

[0287]

[0299] Aspect 37: The method of aspect 36, wherein the first bit value provides a predetermined indication that the first uplink communication should use the first set of SRS resources, the first bit value is configured in the SRS configuration information to indicate that the first uplink communication should use the first set of SRS resources, or the first bit value indicates that a different information field in the first control information provides an indication that the first uplink communication should use either the first set of SRS resources or the second set of SRS resources.

[0288]

[0300] Aspect 38: The method of any of aspects 20 to 37, wherein the indication that one of the first set of SRS resources or the second set of SRS resources is unused is provided by a reserved value of a resource indication of the associated set of SRS resources.

[0289]

[0301] Aspect 39: An apparatus for wireless communication in a UE, comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform a method described in any of aspects 1 to 19.

[0290]

[0302] Aspect 40: An apparatus for wireless communication in a UE, comprising at least one means for performing the method of any of aspects 1 to 19.

[0291]

[0303] Aspect 41: A non-transitory computer-readable medium storing code for wireless communication in a UE, the code comprising instructions executable by a processor to perform a method described in any of aspects 1 to 19.

[0292]

[0304] Aspect 42: An apparatus for wireless communication in a base station, 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 described in any of aspects 20 to 38.

[0293]

[0305] Aspect 43: An apparatus for wireless communication in a base station, the apparatus comprising at least one means for performing the method of any of aspects 20 to 38.

[0294]

[0306] Aspect 44: A non-transitory computer-readable medium storing code for wireless communication in a base station, the code comprising instructions executable by a processor to perform a method described in any of aspects 20 to 38.

[0295]

[0307] It should be noted that the methods described herein represent possible implementations, and that the operations and steps may be rearranged or possibly modified, and that other implementations are possible. Furthermore, aspects from two or more of the methods may be combined.

[0296]

[0308] Although aspects of an LTE, LTE-A, LTE-A Pro, or NR system may be described as examples, and LTE, LTE-A, LTE-A Pro, or NR terminology may be used throughout much of the description, the techniques described herein may be applicable to networks other than LTE, LTE-A, LTE-A Pro, or NR. For example, the described techniques may be applied 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.

[0297]

[0309] The information and signals described herein may be represented using any of a variety of different technologies and techniques. For example, data, instructions, commands, information, signals, bits, symbols, and chips that may be 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.

[0298]

[0310] The various example blocks and components described in connection 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 alternatively, 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, multiple microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration).

[0299]

[0311] The functions described herein may be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software executed by a processor, the functions may be stored on or transmitted via a computer-readable medium as one or more instructions or code. Other examples and implementations are within the scope of this disclosure and the appended claims. For example, due to the nature of software, the functions described herein may be implemented using software executed by a processor, hardware, firmware, hardwiring, or any combination thereof. Features implementing the functions may also be physically located in various locations, including being distributed such that portions of the functions are implemented in different physical locations.

[0300]

[0312] Computer-readable media includes both non-transitory computer storage media and communication media, including any medium that facilitates transfer of a computer program from one place to another. Non-transitory storage media may be any available medium that can be accessed by a general-purpose or special-purpose computer. By way of example, and not limitation, non-transitory computer-readable media may include RAM, ROM, Electrically Erasable Programmable Read Only Memory (EEPROM), Flash memory, Compact Disc (CD) ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other non-transitory medium that can be used to carry or store desired program code means in the form of instructions or data structures and that can be accessed by a general-purpose or special-purpose computer or a general-purpose or special-purpose processor. Also, any connection is properly termed a computer-readable medium. For example, if software is transmitted from a website, server, or other remote source using coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technologies such as infrared, radio, and microwave, the coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, radio, and microwave are included within the definition of computer-readable media. As used herein, disk and disc include CDs, laser discs, optical discs, digital versatile discs (DVDs), floppy disks, and Blu-ray discs, where disks typically reproduce data magnetically and discs reproduce data optically with lasers. Combinations of the above are also included within the scope of computer-readable media.

[0301]

[0313] As used herein, including in the claims, "or" used in a list of items (e.g., a list of items ending with a phrase such as "at least one of" or "one or more of") indicates an inclusive list, such that, for example, a list of at least one of A, B, or C means A or B or C or AB or AC or BC or ABC (i.e., A and B and C). Also, as used herein, the phrase "based on" is not to be construed as a reference to a closed set of conditions. For example, an example step described as "based on condition A" could be based on both condition A and condition B without departing from the scope of the present disclosure. In other words, as used herein, the phrase "based on" is to be construed in the same manner as the phrase "based at least in part on."

[0302]

[0314] In the accompanying figures, similar components or features may have the same reference label. Furthermore, various components of the same type may be distinguished by following the reference label with a dash and a second label that distinguishes between the similar components. If only a first reference label is used herein, the description is applicable to any of the similar components having the same first reference label, regardless of a second reference label or other subsequent reference label.

[0303]

[0315] The description set forth herein with reference to the accompanying drawings describes exemplary configurations and does not represent every example that may be implemented or that is within the scope of the claims. As used herein, the term "example" means "serving as an example, instance, or illustration" and does not mean "preferred" or "advantageous over other examples." The detailed description includes specific details for the purpose of providing an understanding of the described techniques. However, these techniques may be practiced without these specific details. In some instances, known structures and devices are shown in block diagram form to avoid obscuring the concepts of the described examples.

[0304]

[0316] The description herein is provided to enable any person skilled in the art to make or use the disclosure. Various modifications of the disclosure will be apparent to those skilled in the art, and the general principles defined herein may be applied to other variations without departing from the scope of the disclosure. Thus, the disclosure is not limited to the examples and designs described herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein. The inventions described in the claims of the present application as originally filed are set forth below. [C1] 1. A method for wireless communication in a user equipment (UE), comprising: receiving sounding reference signal configuration information from a base station indicating whether control information providing an uplink grant to the UE should include one resource indicator for sounding reference signal resources or two resource indicators for sounding reference signal resources; receiving first control information scheduling two or more repetitions of a first uplink communication and indicating an association between the two or more repetitions of the first uplink communication with either a first set of sounding reference signal resources, a second set of sounding reference signal resources, or both; determining a first set of uplink transmission parameters for a first set of repetitions of the first uplink communication and a second set of uplink transmission parameters for a second set of repetitions of the first uplink communication based at least in part on one or two resource indicators in the first control information and the indicated one or both of the first set of sounding reference signal resources or the second set of sounding reference signal resources associated with the two or more repetitions of the first uplink communication; transmitting the first set of repetitions of the first uplink communication using the first set of uplink transmission parameters and transmitting the second set of repetitions of the first uplink communication using the second set of uplink transmission parameters; A method comprising: [C2] the first set of sounding reference signal resources is associated with the first set of repetitions of the first uplink communication, and the second set of sounding reference signal resources is associated with the second set of repetitions of the first uplink communication; The method of C1, wherein the first set of repetitions of the first uplink communication is transmitted to a first transmitting / receiving point, and the second set of repetitions of the first uplink communication is transmitted to a second transmitting / receiving point. [C3] The method of C1, wherein the first set of repetitions of the first uplink communication and the second set of repetitions of the first uplink communication are codebook-based or non-codebook-based physical uplink shared channel transmissions. [C4] The receiving of the first control information includes: decoding a first resource indicator in the first control information that provides a first sounding reference signal resource in the first set of sounding reference signal resources; decoding a second resource indicator in the first control information, the second resource indicator providing a second sounding reference signal resource in the second set of sounding reference signal resources; The method of C1, further comprising: [C5] the sounding reference signal configuration information indicates that the first control information should include the two resource indicators for sounding reference signal resources; The method comprises: Identifying that the first control information indicates that a single sounding reference signal resource set is associated with the first uplink communication; determining both the first set of uplink transmission parameters and the second set of uplink transmission parameters based at least in part on a first resource indicator in the first control information; ignoring a second resource indicator in the first control information; and The method of C1, further comprising: [C6] the sounding reference signal configuration information indicates that the first control information should include the two resource indicators for sounding reference signal resources; The method comprises: Identifying that the first control information indicates that two sounding reference signal resource sets are associated with the first uplink communication; determining the first set of uplink transmission parameters based at least in part on a first of the two resource indicators in the first control information; determining the second set of uplink transmission parameters based at least in part on a second resource indicator of the two resource indicators in the first control information; The method of C1, further comprising: [C7] the sounding reference signal configuration information indicates that the first control information should include a single resource indicator for a sounding reference signal resource; The method of C1, wherein both the first set of uplink transmission parameters and the second set of uplink transmission parameters are determined based at least in part on the single resource indicator in the first control information. [C8] Identifying that the first control information indicates that a single sounding reference signal resource set is associated with the first uplink communication; determining both the first set of uplink transmission parameters and the second set of uplink transmission parameters based at least in part on the single resource indicator in the first control information and the single sounding reference signal resource set; The method of C7, further comprising: [C9] Identifying that the first control information indicates that two sounding reference signal resource sets are associated with the first uplink communication; determining the first set of uplink transmission parameters based at least in part on the single resource indicator in the first control information and a first mapping between the single resource indicator and sounding reference signal resources of a first sounding reference signal resource set; determining the second set of uplink transmission parameters based at least in part on the single resource indicator in the first control information and a second mapping between the single resource indicator and sounding reference signal resources of a second sounding reference signal resource set; The method of C7, further comprising: [C10] the first set of repetitions of the first uplink communication and the second set of repetitions of the first uplink communication are codebook-based physical uplink shared channel transmissions; the sounding reference signal configuration information indicates that the first control information should include the two resource indicators for sounding reference signal resources; The method of C1, wherein each of the two resource indicators is mapped to a sounding reference signal resource in the associated set of sounding reference signal resources having the same number of antenna ports. [C11] the first set of repetitions of the first uplink communication and the second set of repetitions of the first uplink communication are non-codebook-based physical uplink shared channel transmissions; the sounding reference signal configuration information indicates that the first control information should include the two resource indicators for sounding reference signal resources; The method of C1, wherein a first amount of the indicated sounding reference signal resources in the first set of sounding reference signal resources is the same as a second amount of the indicated sounding reference signal resources in the second set of sounding reference signal resources. [C12] the sounding reference signal configuration information indicates that the first control information should include a single resource indicator for sounding reference signal resources within the first set of sounding reference signal resources and the second set of sounding reference signal resources; the first set of sounding reference signal resources and the second set of sounding reference signal resources have the same number of sounding reference signal resources, or the number of bits in the single resource indicator is determined based at least in part on a maximum number of sounding reference signal resources in the first set of sounding reference signal resources or the second set of sounding reference signal resources. The method described in C1. [C13] The receiving of the first control information includes: identifying a 2-bit field in the first control information indicating whether the first uplink communication should use only the first set of sounding reference signal resources, should use only the second set of sounding reference signal resources, or should use both the first set of sounding reference signal resources and the second set of sounding reference signal resources, and determining which set of repetitions of the first uplink communication should use the first set of sounding reference signal resources and which other set of repetitions should use the second set of sounding reference signal resources; The method of C1, further comprising: [C14] The method of claim 1, wherein the sounding reference signal configuration information separately configures two or more different control information formats to include the one resource indicator for a sounding reference signal resource or the two resource indicators for a sounding reference signal resource. [C15] the first set of repetitions of the first uplink communication and the second set of repetitions of the first uplink communication are codebook-based physical uplink shared channel transmissions, and one sounding reference signal resource in each set of sounding reference signal resources is indicated per codebook-based resource indicator; or the first set of repetitions of the first uplink communication and the second set of repetitions of the first uplink communication are non-codebook-based physical uplink shared channel transmissions, and one or more sounding reference signal resources in each set of sounding reference signal resources are indicated by a non-codebook-based resource indicator. The method described in C1. [C16] the first set of repetitions of the first uplink communication and the second set of repetitions of the first uplink communication are codebook-based physical uplink shared channel transmissions, and the sounding reference signal configuration information indicates that the first control information should include the two resource indicators for sounding reference signal resources; The method of C1, wherein the i-th configured sounding reference signal resource of the first sounding reference signal resource set has the same number of antenna ports as the i-th configured sounding reference signal resource of the second sounding reference signal resource set. [C17] The receiving of the first control information includes: identifying a single bit within the first control information, the single bit having a first bit value indicating that the first uplink communication should use one of the first set of sounding reference signal resources or the second set of sounding reference signal resources, or having a second bit value indicating that the first uplink communication should use both the first set of sounding reference signal resources and the second set of sounding reference signal resources; The method of C1, further comprising: [C18] the first bit value provides a predetermined indication that the first uplink communication should use the first set of sounding reference signal resources; or the first bit value is configured by the sounding reference signal configuration information to indicate that the first uplink communication should use the first set of sounding reference signal resources; or the first bit value indicates that a different information field in the first control information provides an indication that the first uplink communication should use either the first set of sounding reference signal resources or the second set of sounding reference signal resources. The method described in C17. [C19] The method of claim 1, wherein the indication that one of the first set of sounding reference signal resources or the second set of sounding reference signal resources is unused is given by a reserved value of a resource indication of the associated set of sounding reference signal resources. [C20] 1. An apparatus for wireless communication in a user equipment (UE), comprising: a processor; a memory coupled to the processor; instructions stored in said memory; wherein the instructions cause the device to: receiving sounding reference signal configuration information from a base station indicating whether control information providing an uplink grant to the UE should include one resource indicator for sounding reference signal resources or two resource indicators for sounding reference signal resources; receiving first control information scheduling two or more repetitions of a first uplink communication and indicating an association between the two or more repetitions of the first uplink communication with either a first set of sounding reference signal resources, a second set of sounding reference signal resources, or both; determining a first set of uplink transmission parameters for a first set of repetitions of the first uplink communication and a second set of uplink transmission parameters for a second set of repetitions of the first uplink communication based at least in part on one or two resource indicators in the first control information and the indicated one or both of the first set of sounding reference signal resources or the second set of sounding reference signal resources associated with the two or more repetitions of the first uplink communication; transmitting the first set of repetitions of the first uplink communication using the first set of uplink transmission parameters and transmitting the second set of repetitions of the first uplink communication using the second set of uplink transmission parameters; 20. An apparatus comprising: [C21] the first set of sounding reference signal resources is associated with the first set of repetitions of the first uplink communication, and the second set of sounding reference signal resources is associated with the second set of repetitions of the first uplink communication; The apparatus of C20, wherein the first set of repetitions of the first uplink communication is transmitted to a first transmission / reception point, and the second set of repetitions of the first uplink communication is transmitted to a second transmission / reception point. [C22] The instructions to receive the first control information may include: decoding a first resource indicator in the first control information that provides a first sounding reference signal resource in the first set of sounding reference signal resources; decoding a second resource indicator in the first control information, the second resource indicator providing a second sounding reference signal resource in the second set of sounding reference signal resources; The apparatus of C20, further executable by the processor to cause [C23] The sounding reference signal configuration information indicates that the first control information should include the two resource indicators for sounding reference signal resources, and the instructions cause the apparatus to: Identifying that the first control information indicates that a single sounding reference signal resource set is associated with the first uplink communication; determining both the first set of uplink transmission parameters and the second set of uplink transmission parameters based at least in part on a first resource indicator in the first control information; ignoring a second resource indicator in the first control information; and The apparatus of C20, further executable by the processor to cause [C24] The sounding reference signal configuration information indicates that the first control information should include the two resource indicators for sounding reference signal resources, and the instructions cause the apparatus to: Identifying that the first control information indicates that two sounding reference signal resource sets are associated with the first uplink communication; determining the first set of uplink transmission parameters based at least in part on a first of the two resource indicators in the first control information; determining the second set of uplink transmission parameters based at least in part on a second resource indicator of the two resource indicators in the first control information; The apparatus of C20, further executable by the processor to cause [C25] the sounding reference signal configuration information indicates that the first control information should include a single resource indicator for a sounding reference signal resource; The apparatus of C20, wherein both the first set of uplink transmission parameters and the second set of uplink transmission parameters are determined based at least in part on the single resource indicator in the first control information. [C26] The instructions may cause the device to: Identifying that the first control information indicates that a single sounding reference signal resource set is associated with the first uplink communication; determining both the first set of uplink transmission parameters and the second set of uplink transmission parameters based at least in part on the single resource indicator in the first control information and the single sounding reference signal resource set; 26. The apparatus of claim 25, further executable by the processor to cause [C27] The instructions may cause the device to: Identifying that the first control information indicates that two sounding reference signal resource sets are associated with the first uplink communication; determining the first set of uplink transmission parameters based at least in part on the single resource indicator in the first control information and a first mapping between the single resource indicator and sounding reference signal resources of a first sounding reference signal resource set; determining the second set of uplink transmission parameters based at least in part on the single resource indicator in the first control information and a second mapping between the single resource indicator and sounding reference signal resources of a second sounding reference signal resource set; 26. The apparatus of claim 25, further executable by the processor to cause [C28] the first set of repetitions of the first uplink communication and the second set of repetitions of the first uplink communication are codebook-based physical uplink shared channel transmissions; the sounding reference signal configuration information indicates that the first control information should include the two resource indicators for sounding reference signal resources; The apparatus of C20, wherein each of the two resource indicators is mapped to a sounding reference signal resource in the associated set of sounding reference signal resources having the same number of antenna ports. [C29] 1. An apparatus for wireless communication in a user equipment (UE), comprising: means for receiving, from a base station, sounding reference signal configuration information indicating whether control information providing an uplink grant to the UE should include one resource indicator for sounding reference signal resources or two resource indicators for sounding reference signal resources; means for receiving first control information scheduling two or more repetitions of a first uplink communication and indicating an association between the two or more repetitions of the first uplink communication with either a first set of sounding reference signal resources, a second set of sounding reference signal resources, or both; means for determining a first set of uplink transmission parameters for a first set of repetitions of the first uplink communication and a second set of uplink transmission parameters for a second set of repetitions of the first uplink communication based at least in part on one or two resource indicators in the first control information and the indicated one or both of the first set of sounding reference signal resources or the second set of sounding reference signal resources associated with the two or more repetitions of the first uplink communication; means for transmitting the first set of repetitions of the first uplink communication using the first set of uplink transmission parameters and for transmitting the second set of repetitions of the first uplink communication using the second set of uplink transmission parameters; An apparatus comprising: [C30] 1. A non-transitory computer-readable medium storing code for wireless communication in a user equipment (UE), the code comprising: receiving sounding reference signal configuration information from a base station indicating whether control information providing an uplink grant to the UE should include one resource indicator for sounding reference signal resources or two resource indicators for sounding reference signal resources; receiving first control information scheduling two or more repetitions of a first uplink communication and indicating an association between the two or more repetitions of the first uplink communication with either a first set of sounding reference signal resources, a second set of sounding reference signal resources, or both; determining a first set of uplink transmission parameters for a first set of repetitions of the first uplink communication and a second set of uplink transmission parameters for a second set of repetitions of the first uplink communication based at least in part on one or two resource indicators in the first control information and the indicated one or both of the first set of sounding reference signal resources or the second set of sounding reference signal resources associated with the two or more repetitions of the first uplink communication; transmitting the first set of repetitions of the first uplink communication using the first set of uplink transmission parameters and transmitting the second set of repetitions of the first uplink communication using the second set of uplink transmission parameters; 1. A non-transitory computer-readable medium comprising instructions executable by a processor to perform the steps of:

Claims

1. 1. A method for wireless communication in a user equipment (UE), comprising: receiving sounding reference signal configuration information indicating whether control information providing an uplink grant to the UE includes one resource indicator for sounding reference signal resources or two resource indicators for sounding reference signal resources; receiving first control information scheduling two or more repetitions of a first uplink communication and indicating the one resource indicator or the two resource indicators according to the sounding reference signal configuration information; determining a first set of uplink transmission parameters for a first set of repetitions of the first uplink communication and a second set of uplink transmission parameters for a second set of repetitions of the first uplink communication based at least in part on the one or two resource indicators in the first control information and one or both of a first set of sounding reference signal resources and a second set of sounding reference signal resources associated with the two or more repetitions of the first uplink communication; transmitting the first set of repetitions of the first uplink communication using the first set of uplink transmission parameters and transmitting the second set of repetitions of the first uplink communication using the second set of uplink transmission parameters; Equipped with The determining step comprises: When the sounding reference signal configuration information indicates that the first control information includes the two resource indicators for sounding reference signal resources and the first control information indicates that a single sounding reference signal resource set is associated with the first uplink communication, determining both the first set of uplink transmission parameters and the second set of uplink transmission parameters based at least in part on a first resource indicator in the first control information; ignoring a second resource indicator in the first control information; and Equipped with method.

2. the first set of sounding reference signal resources is associated with the first set of repetitions of the first uplink communication, and the second set of sounding reference signal resources is associated with the second set of repetitions of the first uplink communication; 2. The method of claim 1, wherein the first set of repetitions of the first uplink communication is transmitted to a first transmission / reception point and the second set of repetitions of the first uplink communication is transmitted to a second transmission / reception point.

3. The receiving of the first control information includes: decoding a first resource indicator in the first control information that provides a first sounding reference signal resource in the first set of sounding reference signal resources; decoding a second resource indicator in the first control information that provides a second sounding reference signal resource in the second set of sounding reference signal resources; The method of claim 1 , comprising:

4. The determining step comprises: the sounding reference signal configuration information indicates that the first control information includes the two resource indicators for sounding reference signal resources; and when the first control information indicates that two sounding reference signal resource sets are associated with the first uplink communication; determining the first set of uplink transmission parameters based at least in part on a first of the two resource indicators in the first control information; determining the second set of uplink transmission parameters based at least in part on a second of the two resource indicators in the first control information; The method of claim 1 , comprising:

5. The determining step comprises: when the sounding reference signal configuration information indicates that the first control information includes a single resource indicator for a sounding reference signal resource, 2. The method of claim 1, comprising determining both the first set of uplink transmission parameters and the second set of uplink transmission parameters based at least in part on the single resource indicator in the first control information. determining both the first set of uplink transmission parameters and the second set of uplink transmission parameters based at least in part on the single resource indicator in the first control information, when the first control information indicates that a single sounding reference signal resource set is associated with the first uplink communication; determining both the first set of uplink transmission parameters and the second set of uplink transmission parameters based at least in part on the single resource indicator in the first control information and the single sounding reference signal resource set; when the first control information indicates that two sounding reference signal resource sets are associated with the first uplink communication; determining the first set of uplink transmission parameters based at least in part on the single resource indicator in the first control information and a first mapping between the single resource indicator and sounding reference signal resources of a first sounding reference signal resource set; determining the second set of uplink transmission parameters based at least in part on the single resource indicator in the first control information and a second mapping between the single resource indicator and sounding reference signal resources of a second sounding reference signal resource set; The method of claim 5 , comprising:

7. the first set of repetitions of the first uplink communication and the second set of repetitions of the first uplink communication are codebook-based physical uplink shared channel transmissions; the sounding reference signal configuration information indicates that the first control information includes the two resource indicators for sounding reference signal resources; each of the two resource indicators is mapped to a sounding reference signal resource within an associated set of sounding reference signal resources having the same number of antenna ports; or the first set of repetitions of the first uplink communication and the second set of repetitions of the first uplink communication are non-codebook-based physical uplink shared channel transmissions; the sounding reference signal configuration information indicates that the first control information includes the two resource indicators for sounding reference signal resources; 2. The method of claim 1, wherein a first amount of the indicated sounding reference signal resources in the first set of sounding reference signal resources is the same as a second amount of the indicated sounding reference signal resources in the second set of sounding reference signal resources.

8. the sounding reference signal configuration information indicates that the first control information includes a single resource indicator for a sounding reference signal resource within the first set of sounding reference signal resources and the second set of sounding reference signal resources; the first set of sounding reference signal resources and the second set of sounding reference signal resources have the same number of sounding reference signal resources, or the number of bits in the single resource indicator is determined based at least in part on a maximum number of sounding reference signal resources in the first set of sounding reference signal resources or the second set of sounding reference signal resources. The method of claim 5.

9. The receiving of the first control information includes: identifying a 2-bit field in the first control information indicating whether the first uplink communication uses only the first set of sounding reference signal resources, only the second set of sounding reference signal resources, or both the first set of sounding reference signal resources and the second set of sounding reference signal resources, and determining which sets of repetitions of the first uplink communication use the first set of sounding reference signal resources and which other sets of repetitions use the second set of sounding reference signal resources; The method of claim 1 further comprising:

10. the first set of repetitions of the first uplink communication and the second set of repetitions of the first uplink communication are codebook-based physical uplink shared channel transmissions, and one sounding reference signal resource in each set of sounding reference signal resources is indicated per codebook-based resource indicator; or the first set of repetitions of the first uplink communication and the second set of repetitions of the first uplink communication are non-codebook-based physical uplink shared channel transmissions, and one or more sounding reference signal resources in each set of sounding reference signal resources are indicated per non-codebook-based resource indicator. The method of claim 1.

11. the first set of repetitions of the first uplink communication and the second set of repetitions of the first uplink communication are codebook-based physical uplink shared channel transmissions, and the sounding reference signal configuration information indicates that the first control information includes the two resource indicators for sounding reference signal resources; and 2. The method of claim 1, wherein the i-th configured sounding reference signal resource of the first sounding reference signal resource set has the same number of antenna ports as the i-th configured sounding reference signal resource of the second sounding reference signal resource set.

12. The receiving of the control information includes: identifying a single bit within the first control information, the single bit having a first bit value indicating that the first uplink communication uses one of the first set of sounding reference signal resources or the second set of sounding reference signal resources, or having a second bit value indicating that the first uplink communication uses both the first set of sounding reference signal resources and the second set of sounding reference signal resources; The method of claim 1 further comprising:

13. 2. The method of claim 1, wherein an indication that one of the first set of sounding reference signal resources or the second set of sounding reference signal resources is unused is given by a reserved value of a resource indication of the associated set of sounding reference signal resources.

14. 1. An apparatus for wireless communication in a user equipment (UE), comprising: means for receiving sounding reference signal configuration information indicating whether control information providing an uplink grant to the UE includes one resource indicator for a sounding reference signal resource or two resource indicators for a sounding reference signal resource; means for receiving first control information that schedules two or more repetitions of a first uplink communication and that indicates the one resource indicator or the two resource indicators according to the sounding reference signal configuration information; means for determining a first set of uplink transmission parameters for a first set of repetitions of the first uplink communication and a second set of uplink transmission parameters for a second set of repetitions of the first uplink communication based at least in part on the one or two resource indicators in the first control information and one or both of a first set of sounding reference signal resources and a second set of sounding reference signal resources associated with the two or more repetitions of the first uplink communication; means for transmitting the first set of repetitions of the first uplink communication using the first set of uplink transmission parameters and for transmitting the second set of repetitions of the first uplink communication using the second set of uplink transmission parameters; Equipped with The means for determining When the sounding reference signal configuration information indicates that the first control information includes the two resource indicators for sounding reference signal resources and the first control information indicates that a single sounding reference signal resource set is associated with the first uplink communication, determining both the first set of uplink transmission parameters and the second set of uplink transmission parameters based at least in part on a first resource indicator in the first control information; ignoring a second resource indicator in the first control information; and Equipped with Device.

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