Reference signal configuration for uplink beam selection

Abstract

Methods, systems, and apparatus for wireless communication are described to support the determination of uplink beams for uplink transmission. A base station can configure multiple sets of Sounding Reference Signals (SRS) resources for a User Equipment (UE) to be used for uplink transmissions from the UE. In some cases, each SRS resource set may be configured with an associated Channel State Information Reference Signal (CSI-RS) resource, and each CSI-RS resource may correspond to an uplink beam. The base station can send downlink control messages to the UE, indicating one or more selected SRS resource sets and one or more selected SRS resources within each of the selected SRS resource sets. The UE can transmit uplink transmissions using the beam associated with the indicated SRS resource set.

Description

[0001] Cross-references

[0002] This patent application claims the benefit of international patent application No. PCT / CN2020 / 076342 entitled “REFERENCESIGNAL CONFIGURATIONS FOR UPLINK BEAM SELECTION” filed by KHOSHNEVISAN et al. on February 24, 2020, which is assigned to the assignee and is expressly incorporated herein by reference. Technical Field

[0003] The following generally pertains to wireless communication, and more specifically to the configuration of reference signals for uplink beam selection. Background Technology

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

[0005] In some cases, the UE can be configured to associate uplink transmission with multiple possible uplink transmission beams for targeted transmission. However, in other cases, the UE can be configured to associate uplink transmission with only one possible uplink transmission beam, which may degrade uplink transmission quality. Summary of the Invention

[0006] The described techniques relate to improved methods, systems, apparatuses, and devices for configuring reference signals for uplink beam selection. For example, a user equipment (UE) and a base station can communicate, and the base station can configure multiple sets of sounding reference signals (SRS) resources (e.g., using multiple SRS resource sets configured as non-codebooks) available for uplink transmissions from the UE. When scheduling uplink transmissions, the base station can indicate one or more SRS resource sets associated with the uplink transmission, and thereby can indicate the uplink beam used for the uplink transmission (e.g., the uplink beam associated with the indicated SRS resource set). For example, the described techniques can be used to select and indicate the uplink beam used for uplink transmission (e.g., as a non-limiting example, based on a non-codebook).

[0007] The base station can send downlink control messages (e.g., downlink control information (DCI)) to the UE, indicating one or more selected SRS resource sets and one or more selected SRS resources within each of the one or more selected SRS resource sets. The downlink control message can indicate one or more selected SRS resource sets using fields in the downlink control message or using one or more bits of fields in the downlink control message. The UE can receive the downlink control message and can send uplink transmissions based on the information received in the downlink control message. For example, the UE can use the same pre-decoder and spatial filter (e.g., the same beam) as the indicated SRS resources to send uplink transmissions. Therefore, the UE can use at least one of the same beams as in one or more indicated SRS resource sets to send uplink transmissions.

[0008] A method for wireless communication is described. The method may include: receiving information indicating a set of SRS resource sets; receiving an indication of a selected SRS resource set, wherein the selected SRS resource set is included in the set of SRS resource sets; receiving an indication of one or more selected SRS resources, wherein each selected SRS resource is included in the selected SRS resource set; and transmitting an uplink based on the one or more selected SRS resources and via a beam direction associated with the selected SRS resource set.

[0009] An apparatus for wireless communication is described. The apparatus may include at least one processor, a memory coupled (e.g., communicatively ground, operably ground, electronically ground, or otherwise) to the at least one processor, and instructions stored in the memory. The instructions are executable by the at least one processor to cause the apparatus to receive information indicating a set of SRS resource sets, receive an indication of a selected SRS resource set, wherein the selected SRS resource set is included in the set of SRS resource sets, receive indications of one or more selected SRS resources, wherein each selected SRS resource is included in the selected SRS resource set, and transmit an uplink based on the one or more selected SRS resources and via a beam direction associated with the selected SRS resource set.

[0010] Another apparatus for wireless communication is described. The apparatus may include components for receiving information indicating a set of SRS resource sets, receiving an indication of a selected SRS resource set, wherein the selected SRS resource set is included in the set of SRS resource sets, receiving indications of one or more selected SRS resources, wherein each selected SRS resource is included in the selected SRS resource set, and transmitting uplink transmission based on one or more selected SRS resources and via a beam direction associated with the selected SRS resource set.

[0011] A non-transitory computer-readable medium storing code for wireless communication is described. The code may include instructions executable by at least one processor to receive information indicating a set of SRS resource sets, receive an indication of a selected SRS resource set, wherein the selected SRS resource set is included in the set of SRS resource sets, receive an indication of one or more selected SRS resources, wherein each selected SRS resource is included in the selected SRS resource set, and transmit uplink based on one or more selected SRS resources and via a beam direction associated with the selected SRS resource set.

[0012] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for receiving information indicating a set of downlink reference signaling resources, wherein each of the set of SRS resources is associated with a corresponding downlink reference signaling resource in the set of downlink reference signaling resources.

[0013] In some examples of the methods, apparatuses and non-transitory computer-readable media described herein, the beam direction may correspond to a corresponding downlink reference signal resource in the downlink reference signal resource set associated with the selected SRS resource set.

[0014] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for transmitting one or more SRSs through each of a set of SRS resource sets, wherein an indication to receive a selected SRS resource set and an indication to one or more selected SRS resources may be based on transmitting one or more SRSs.

[0015] In some examples of the methods, apparatuses and nontransitory computer-readable media described herein, an indication to receive a selected set of SRS resources and an indication to receive one or more selected SRS resources may include operations, features, components or instructions for receiving a downlink control information message, wherein a first field of the downlink control information message includes an indication to a selected set of SRS resources, and wherein a second field of the downlink control information message includes an indication to one or more selected SRS resources.

[0016] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for determining the number of selected SRS resource sets based on the value of a first field, and for ignoring one or more additional fields of the downlink control information message that may be associated with the selected SRS resources based on determining the number of selected SRS resource sets.

[0017] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, an indication to receive a selected set of SRS resources and an indication to receive one or more selected SRS resources may include operations, features, components, or instructions for receiving a downlink control information message, wherein a first set of bits within a field of the downlink control information message includes an indication to the selected SRS resource set, and wherein a second set of bits within a field of the downlink control information message includes an indication to one or more selected SRS resources.

[0018] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, the first set of bits may be more important than the second set of bits.

[0019] In some examples of the methods, apparatuses and non-transitory computer-readable media described herein, each of the sets of SRS resources includes a corresponding number of SRS resources, and the number of bits included in the indication of one or more selected SRS resources may be based on the maximum corresponding number of SRS resources.

[0020] In some examples of the methods, apparatuses and nontransitory computer-readable media described herein, an instruction to receive a selected set of SRS resources and an instruction to receive one or more selected SRS resources may include operations, features, components or instructions for receiving a downlink control information message that includes authorization for uplink transmission, wherein uplink transmission may be transmitted based on authorization.

[0021] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, each of the sets of downlink reference signal resources corresponds to a corresponding beam direction.

[0022] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for receiving a corresponding downlink reference signal resource using a spatial transmission filter, wherein uplink transmission via a beam direction corresponding to the corresponding downlink reference signal resource includes uplink transmission using a spatial transmission filter.

[0023] In some examples of the methods, apparatuses, and nontransitory computer-readable media described herein, one or more selected SRS resources correspond to one or more corresponding transmission layers, and uplink transmission based on one or more selected SRS resources may include operations, features, components, or instructions for transmitting uplink transmissions via one or more corresponding transmission layers.

[0024] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for receiving an indication of a second selected SRS resource set, wherein the second selected SRS resource set may be included in a collection of SRS resource sets; receiving an indication of one or more second selected SRS resources, wherein each second selected SRS resource may be included in the second selected SRS resource set; and transmitting an uplink transmission based on one or more second selected SRS resources and via a second beam direction associated with the second selected SRS resource set.

[0025] In some examples of the methods, apparatuses and non-transitory computer-readable media described herein, the second beam direction may correspond to a second corresponding downlink reference signal resource associated with a second selected set of probe reference signal resources among a plurality of downlink reference signal resources.

[0026] In some examples of the methods, apparatuses and non-transitory computer-readable media described herein, an indication of a selected SRS resource set, an indication of one or more selected SRS resources, an indication of a second selected SRS resource set, and an indication of one or more second selected SRS resources can be received within an authorization for uplink transmission, for an authorization to schedule multiple timings of uplink transmission.

[0027] In some examples of the methods, apparatuses and nontransitory computer-readable media described herein, a first set of one or more uplink transmission opportunities may be transmitted via a beam direction and based on one or more selected SRS resources, and a second set of one or more uplink transmission opportunities may be transmitted via a second beam direction and based on one or more second selected SRS resources.

[0028] In some examples of the methods, apparatuses and non-transitory computer-readable media described herein, the timing of uplink transmissions included in the second set can be transmitted after a first timing of uplink transmissions included in the first set and before a second timing of uplink transmissions included in the first set.

[0029] In some examples of the methods, apparatuses and non-transitory computer-readable media described herein, one or more selected SRS resources include a first number of reference signal resources, and one or more second selected SRS resources include a second number of reference signal resources that may be less than the first number, and an indication of a set of selected SRS resources, an indication of one or more selected SRS resources, an indication of a second selected SRS resource set and an indication of one or more second selected SRS resources can be received in a downlink control information message.

[0030] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for identifying an indication of an antenna port set within a field of a downlink control information message, associating the antenna port set with one or more selected SRS resources, wherein uplink transmissions in a first set of timings can be transmitted based on the antenna port set, and associating a subset of the antenna port set with one or more second selected SRS resources, wherein uplink transmissions in a second set of timings can be transmitted based on the subset of the antenna port set.

[0031] In some examples of the methods, apparatuses and non-transitory computer-readable media described herein, uplink transmissions can be transmitted via a beam direction and via a second beam direction within the same transmission time interval.

[0032] In some examples of the methods, apparatuses and non-transitory computer-readable media described herein, the beam direction may be associated with a first transmitting and receiving point or a first panel, and the second beam direction may be associated with a second transmitting and receiving point or a second panel.

[0033] In some examples of the methods, apparatuses and non-transitory computer-readable media described herein, an indication of a selected SRS resource set, an indication of one or more selected SRS resources, an indication of a second selected SRS resource set, and an indication of one or more second selected SRS resources may be received within a downlink control information message, wherein a first field of the downlink control information message indicates the selected SRS resource set and the second selected SRS resource set, a second field of the downlink control information message indicates one or more selected SRS resources, and a third field of the downlink control information message indicates one or more second selected SRS resources.

[0034] In some examples of the methods, apparatuses and nontransitory computer-readable media described herein, an indication of a selected SRS resource set, an indication of one or more selected SRS resources, an indication of a second selected SRS resource set, and an indication of one or more second selected SRS resources may be received within a field of a downlink control information message, wherein a first set of bits within the field indicates the selected SRS resource set and the second selected SRS resource set, and a second set of bits within the field indicates one or more selected SRS resources and one or more second selected SRS resources.

[0035] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, the first set of bits may be more important than the second set of bits.

[0036] In some examples of the methods, apparatuses and non-transitory computer-readable media described herein, one or more selected SRS resources and one or more second-selected SRS resources each include the same number of reference signal resources.

[0037] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, uplink transmission includes physical uplink shared channel transmission.

[0038] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, the downlink reference signal resource set includes a channel state information reference signal resource set.

[0039] A method for wireless communication is described. The method may include: transmitting information indicating a set of SRS resource sets; transmitting an indication of a selected SRS resource set, wherein the selected SRS resource set is included in the set of SRS resource sets; transmitting indications of one or more selected SRS resources, wherein each selected SRS resource is included in the selected SRS resource set; and receiving uplink transmission based on the one or more selected SRS resources and via a beam direction associated with the selected SRS resource set.

[0040] An apparatus for wireless communication is described. The apparatus may include at least one processor, a memory coupled (e.g., communicatively ground, operably ground, electronically ground, or otherwise) to the at least one processor, and instructions stored in the memory. The instructions are executable by the at least one processor to cause the apparatus to transmit information indicating a set of SRS resource sets, transmit an indication of a selected SRS resource set, wherein the selected SRS resource set is included in the set of SRS resource sets, transmit indications of one or more selected SRS resources, wherein each selected SRS resource is included in the selected SRS resource set, and receive uplink transmission based on one or more selected SRS resources and via a beam direction associated with the selected SRS resource set.

[0041] Another apparatus for wireless communication is described. The apparatus may include information for transmitting a set of SRS resource sets, transmitting an indication of a selected SRS resource set, wherein the selected SRS resource set is included in the set of SRS resource sets, transmitting indications of one or more selected SRS resources, wherein each selected SRS resource is included in the selected SRS resource set, and components for receiving uplink transmissions based on one or more selected SRS resources and via a beam direction associated with the selected SRS resource set.

[0042] A non-transitory computer-readable medium storing code for wireless communication is described. The code may include instructions executable by at least one processor to transmit information indicating a set of SRS resource sets, transmit an indication of a selected SRS resource set, wherein the selected SRS resource set is included in the set of SRS resource sets, transmit indications of one or more selected SRS resources, wherein each selected SRS resource is included in the selected SRS resource set, and receive uplink transmission based on one or more selected SRS resources and via a beam direction associated with the selected SRS resource set.

[0043] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for transmitting information indicating a set of downlink reference signaling resources, wherein each of the set of SRS resources is associated with a corresponding downlink reference signaling resource in the set of downlink reference signaling resources.

[0044] In some examples of the methods, apparatuses and non-transitory computer-readable media described herein, the beam direction may correspond to a corresponding downlink reference signal resource in the downlink reference signal resource set associated with the selected SRS resource set.

[0045] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include receiving one or more SRSs through each of a set of SRS resource sets, and determining operations, features, components, or instructions of a selected set of SRS resource sets and one or more selected SRS resource sets based on the one or more SRSs.

[0046] In some examples of the methods, apparatuses, and nontransitory computer-readable media described herein, an indication to send a selected SRS resource set and an indication to send one or more selected SRS resources may include operations, features, components, or instructions for sending a downlink control information message, wherein a first field of the downlink control information message includes an indication to a selected SRS resource set, and wherein a second field of the downlink control information message includes an indication to one or more selected SRS resources.

[0047] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for determining the number of selected SRS resource sets and for populating one or more additional fields of a downlink control information message that may be associated with the selected SRS resources based on the determined number of selected SRS resource sets.

[0048] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, an indication to send a selected set of SRS resources and an indication to send one or more selected SRS resources may include operations, features, components, or instructions for sending a downlink control information message, wherein a first set of bits within a field of the downlink control information message includes an indication to the selected SRS resource set, and wherein a second set of bits within a field of the downlink control information message includes an indication to one or more selected SRS resources.

[0049] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, the first set of bits may be more important than the second set of bits.

[0050] In some examples of the methods, apparatuses and non-transitory computer-readable media described herein, each of the sets of SRS resources includes a corresponding number of SRS resources, and the number of bits included in the indication of one or more selected SRS resources may be based on the maximum corresponding number of SRS resources.

[0051] In some examples of the methods, apparatuses and nontransitory computer-readable media described herein, instructions to send a selected set of SRS resources and instructions to send one or more selected SRS resources may include operations, features, components or instructions for sending a downlink control information message that includes authorization for uplink transmission, wherein uplink transmission may be sent based on authorization.

[0052] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, each of the sets of downlink reference signal resources corresponds to a corresponding beam direction.

[0053] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for transmitting a corresponding downlink reference signal resource using a spatial transmission filter, wherein receiving uplink transmissions via a beam direction corresponding to the corresponding downlink reference signal resource includes receiving uplink transmissions using a spatial transmission filter.

[0054] In some examples of the methods, apparatuses, and nontransitory computer-readable media described herein, one or more selected SRS resources correspond to one or more corresponding transmission layers, and receiving uplink transmissions based on one or more selected SRS resources may include operations, features, components, or instructions for receiving uplink transmissions via one or more corresponding transmission layers.

[0055] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for transmitting an indication of a second selected SRS resource set, wherein the second selected SRS resource set may be included in a collection of SRS resource sets; transmitting an indication of one or more second selected SRS resources, wherein each second selected SRS resource may be included in a second selected SRS resource set; and receiving uplink transmission based on one or more second selected SRS resources and via a second beam direction associated with the second selected SRS resource set.

[0056] In some examples of the methods, apparatuses and non-transitory computer-readable media described herein, the second beam direction may correspond to a second corresponding downlink reference signal resource associated with a second selected set of probe reference signal resources among a plurality of downlink reference signal resources.

[0057] In some examples of the methods, apparatuses and non-transitory computer-readable media described herein, indications of a selected SRS resource set, one or more selected SRS resources, a second selected SRS resource set, and one or more second selected SRS resources may be transmitted within an authorization for uplink transmission, for multiple timings of uplink transmission scheduling within the authorization for uplink transmission.

[0058] In some examples of the methods, apparatuses and non-transitory computer-readable media described herein, a first set of one or more uplink transmission opportunities can be received via a beam direction and based on one or more selected SRS resources, and a second set of one or more uplink transmission opportunities can be received via a second beam direction and based on one or more second selected SRS resources.

[0059] In some examples of the methods, apparatuses and non-transitory computer-readable media described herein, the timing of uplink transmissions included in the second set can be received after a first timing of uplink transmissions included in the first set and before a second timing of uplink transmissions included in the first set.

[0060] In some examples of the methods, apparatuses and non-transitory computer-readable media described herein, one or more selected SRS resources include a first number of reference signal resources, and one or more second selected SRS resources include a second number of reference signal resources that may be less than the first number, and an indication of a set of selected SRS resources, an indication of one or more selected SRS resources, an indication of a second selected SRS resource set and an indication of one or more second selected SRS resources can be received in a downlink control information message.

[0061] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for including an indication of an antenna port set within a field of a downlink control information message, wherein uplink transmission in a first set of one or more timings may be based on the antenna port set, and wherein uplink transmission in a second set of one or more timings may be based on a subset of the antenna port set.

[0062] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, uplink transmissions can be received via a beam direction and via a second beam direction within the same transmission time interval.

[0063] In some examples of the methods, apparatuses and non-transitory computer-readable media described herein, the beam direction may be associated with a first transmitting and receiving point or a first panel, and the second beam direction may be associated with a second transmitting and receiving point or a second panel.

[0064] In some examples of the methods, apparatuses and non-transitory computer-readable media described herein, an indication of a selected SRS resource set, an indication of one or more selected SRS resources, an indication of a second selected SRS resource set, and an indication of one or more second selected SRS resources may be transmitted within a downlink control information message, wherein a first field of the downlink control information message indicates the selected SRS resource set and the second selected SRS resource set, a second field of the downlink control information message indicates one or more selected SRS resources, and a third field of the downlink control information message indicates one or more second selected SRS resources.

[0065] In some examples of the methods, apparatuses and nontransitory computer-readable media described herein, an indication of a selected SRS resource set, an indication of one or more selected SRS resources, an indication of a second selected SRS resource set, and an indication of one or more second selected SRS resources may be transmitted within fields of a downlink control information message, wherein a first set of bits within the field indicates the selected SRS resource set and the second selected SRS resource set, and a second set of bits within the field indicates one or more selected SRS resources and one or more second selected SRS resources.

[0066] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, the first set of bits may be more important than the second set of bits.

[0067] In some examples of the methods, apparatuses and non-transitory computer-readable media described herein, one or more selected SRS resources and one or more second-selected SRS resources each include the same number of reference signal resources.

[0068] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, uplink transmission includes physical uplink shared channel transmission.

[0069] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, the downlink reference signal resource set includes a channel state information reference signal resource set. Attached Figure Description

[0070] Figure 1 An example of a wireless communication system that supports the configuration of reference signals for uplink beam selection according to aspects of this disclosure is shown.

[0071] Figure 2 An example of a wireless communication system that supports the configuration of reference signals for uplink beam selection according to aspects of this disclosure is shown.

[0072] Figure 3 An example of a reference signal configuration supporting uplink beam selection is shown, according to aspects of this disclosure.

[0073] Figure 4 An example of a communication scheme for configuring reference signals for uplink beam selection, according to aspects of this disclosure, is shown.

[0074] Figure 5 An example of a processing flow for configuring reference signals for uplink beam selection, according to aspects of this disclosure, is shown.

[0075] Figure 6 and Figure 7 A block diagram of a device for configuring reference signals for uplink beam selection, according to aspects of this disclosure, is shown.

[0076] Figure 8 A block diagram of a communication manager supporting the configuration of reference signals for uplink beam selection, according to aspects of this disclosure, is shown.

[0077] Figure 9 A diagram of a system including a device for configuring a reference signal for uplink beam selection, according to aspects of this disclosure, is shown.

[0078] Figure 10 and Figure 11 A block diagram of a device for configuring reference signals for uplink beam selection, according to aspects of this disclosure, is shown.

[0079] Figure 12 A block diagram of a communication manager supporting the configuration of reference signals for uplink beam selection, according to aspects of this disclosure, is shown.

[0080] Figure 13 A diagram of a system including a device for configuring a reference signal for uplink beam selection, according to aspects of this disclosure, is shown.

[0081] Figures 14 to 17 A flowchart illustrating a method for configuring reference signals for uplink beam selection according to aspects of this disclosure is shown. Detailed Implementation

[0082] User equipment (UE) can send uplink transmissions to the base station. In some cases, the base station can avoid configuring spatial relation information for the sounding reference signal (SRS) resource set and channel state information reference signal (CSI-RS) resources for the UE. Spatial relation information can provide the spatial relationship between the indicated reference signal and the target SRS to determine the uplink beam of the target SRS.

[0083] In some cases, the base station can configure CSI-RS resources for the UE to compute the pre-decoder for the SRS resource set, and therefore may not need to configure spatial relation information for the SRS resource set for the UE. If spatial relation information is not configured for the SRS resource set, the UE can be restricted to using a single uplink beam for the SRS resource set and any corresponding uplink(s) transmissions, where the uplink beam can be based on the CSI-RS resource. To change the uplink beam, Radio Resource Control (RRC) signaling can indicate a change in the Transmission Configuration Indicator (TCI) of the corresponding CSI-RS, or another CSI-RS resource set can be configured, both of which are relatively slow communication types. Having a reduced possible uplink beam set may degrade uplink transmission quality.

[0084] The proposed technique enables a base station to configure multiple SRS resource sets (e.g., using multiple SRS resource sets configured as non-codebooks) available for uplink transmissions from a UE (including, as a non-limiting example only, uplink transmissions based on non-codebooks). When scheduling uplink transmissions, the base station can indicate one or more SRS resource sets associated with the uplink transmission, and thereby can indicate the uplink beam used for the uplink transmission (e.g., the uplink beam corresponding to the CSI-RS resource associated with the indicated SRS resource set).

[0085] The base station can send downlink control messages (e.g., downlink control information (DCI)) to the UE, indicating one or more selected SRS resource sets and one or more selected SRS resources within each of the one or more selected SRS resource sets. The downlink control message can indicate one or more selected SRS resource sets using fields in the downlink control message or using one or more bits of fields in the downlink control message. The UE can receive the downlink control message and can transmit uplink transmissions based on the information received in the downlink control message. For example, the UE can use the same pre-decoder and spatial filter (e.g., the same beam) as the indicated SRS resource to transmit uplink transmissions. Therefore, the UE can use at least one beam identical to that in one or more indicated SRS resource sets to transmit uplink transmissions. In some cases, each SRS resource set may be configured with an associated CSI-RS resource, and each CSI-RS resource may correspond to an uplink beam.

[0086] The aspects of this disclosure are initially described in the context of wireless communication systems. These aspects are further illustrated and described with reference to reference signal configurations, communication schemes, processing flows, apparatus diagrams, system diagrams, and flowcharts relating to reference signal configurations used for uplink beam selection.

[0087] Figure 1 An example of a wireless communication system 100 supporting reference signal configuration for uplink beam selection according to aspects of this disclosure is shown. The wireless communication system 100 may include one or more base stations 105, one or more UEs 115, and a core network 130. In some examples, the wireless communication system 100 may be a Long Term Evolution (LTE) network, an Advanced LTE (LTE-A) network, an LTE-A Pro network, or a New Radio (NR) network. In some examples, the wireless communication system 100 may support enhanced broadband communication, ultra-reliable (e.g., mission-critical) communication, low-latency communication, communication with low-cost and low-complexity devices, or any combination thereof.

[0088] Base stations 105 can be distributed across a geographical area to form a wireless communication system 100, and can be different types of devices or devices with different capabilities. Base stations 105 and UE 115 can communicate wirelessly via one or more communication links 125. Each base station 105 can provide a coverage area 110, and UE 115 and base station 105 can establish one or more communication links 125 on the coverage area 110. The coverage area 110 can be an example of a geographical area over which base stations 105 and UE 115 can support signal communication according to one or more radio access technologies.

[0089] UE 115 can be distributed throughout the coverage area 110 of wireless communication system 100, and each UE 115 can be stationary or mobile, or stationary or mobile at different times. UE 115 can be different types of devices or devices with different capabilities. Figure 1 Some example UE 115s are shown below. Figure 1 As shown, the UE 115 described herein may be able to communicate with various types of devices, such as other UE 115s, base station 105, or network devices (e.g., core network nodes, relay devices, integrated access and backhaul (IAB) nodes, or other network devices).

[0090] Base station 105 may communicate with core network 130 or with each other, or both. For example, base station 105 may connect to core network 130 via one or more backhaul links 120 (e.g., via S1, N2, N3, or other interfaces). Base station 105 may communicate with each other directly (e.g., directly between base stations 105) or indirectly (e.g., via core network 130) or directly and indirectly via backhaul links 120 (e.g., via X2, Xn, or other interfaces). In some examples, backhaul link 120 may be or include one or more radio links.

[0091] One or more of the base stations 105 described herein may include, or may be referred to by those skilled in the art as, base station, radio base station, access point, radio transceiver, NodeB, eNodeB (eNB), next-generation NodeB or giga-NodeB (any of which may be referred to as gNB), home NodeB, home eNodeB, or other suitable terms.

[0092] UE 115 may include or may be referred to as a mobile device, wireless device, remote device, handheld device, or subscriber device or some other suitable term, wherein in other examples, “device” may also be referred to as a unit, station, terminal, or client. UE 115 may also include or be referred to as personal electronic devices, such as cellular phones, personal digital assistants (PDAs), multimedia / entertainment devices (e.g., radios, MP3 players, video devices), cameras, gaming devices, navigation / positioning devices (e.g., GNSS (Global Navigation Satellite System) devices, such as GPS (Global Positioning System), BeiDou, GLONASS, or Galileo-based or terrestrial devices), tablets, laptops, netbooks, smartbooks, personal computers, smart devices, wearable devices (e.g., smartwatches, smart clothing, smart glasses, virtual reality goggles, smart wristbands, smart jewelry (e.g., smart rings, smart bracelets)), drones, robots / robotic devices, vehicles, in-vehicle equipment, meters (e.g., parking meters, electricity meters, gas meters, water meters), displays, air pumps, electrical appliances (e.g., kitchen appliances, washing machines, dryers), location tags, medical / healthcare devices, implants, sensors / actuators, displays, or any other suitable device configured to communicate via wireless or wired media. In some examples, UE 115 may include or be referred to as a wireless local loop (WLL) station, Internet of Things (IoT) device, Internet of Everything (IoE) device, or machine-type communication (MTC) device, which can be implemented in various objects such as home appliances, vehicles, and meters.

[0093] like Figure 1 As shown, the UE 115 described herein may be able to communicate with various types of devices, such as other UE 115s that may sometimes act as relays, as well as base station 105 and network devices including macro eNBs or gNBs, small cell eNBs or gNBs, or relay base stations.

[0094] UE 115 and base station 105 can wirelessly communicate with each other via one or more communication links 125 on one or more carriers. The term "carrier" can refer to a set of radio frequency spectrum resources having a defined physical layer structure for supporting communication link 125. For example, a carrier for communication link 125 may include a portion of the radio frequency spectrum band (e.g., a bandwidth portion (BWP)) operating according to one or more physical layer channels for a given radio access technology (e.g., LTE, LTE-A, LTE-A Pro, NR). Each physical layer channel may carry acquisition signaling (e.g., synchronization signals, system information), control signaling coordinating carrier operation, user data, or other signaling. Wireless communication system 100 can support communication with UE 115 using carrier aggregation or multi-carrier operation. UE 115 can be configured to have multiple downlink component carriers and one or more uplink component carriers according to a carrier aggregation configuration. Carrier aggregation can be used in conjunction with both frequency division duplex (FDD) and time division duplex (TDD) component carriers.

[0095] The signal waveform transmitted via a carrier can consist of multiple subcarriers (e.g., using multi-carrier modulation (MCM) techniques, such as orthogonal frequency division multiplexing (OFDM) or discrete Fourier transform extended OFDM (DFT-S-OFDM)). In a system employing MCM, a resource element can include a symbol period (e.g., the duration of a modulation symbol) and a subcarrier, where the symbol period and subcarrier spacing are inversely related. The number of bits carried by each resource element can depend on the modulation scheme (e.g., the order of the modulation scheme, the coding rate of the modulation scheme, or both). Therefore, the more resource elements the UE 115 receives and the higher the order of the modulation scheme, the higher the data rate the UE 115 can achieve. Wireless communication resources can refer to a combination of radio spectrum resources, temporal resources, and spatial resources (e.g., spatial layers or beams), and the use of multiple spatial layers can further improve the data rate or data integrity used for communication with the UE 115.

[0096] The time interval between base station 105 or UE 115 can be expressed as a multiple of a basic time unit, such as T. s =1 / (Δf) max ·N f The sampling period is ) seconds, where Δf max This can represent the maximum supported subcarrier spacing, and N f This can represent the maximum supported Discrete Fourier Transform (DFT) size. The time interval of the communication resources can be organized according to each radio frame having a specified duration (e.g., 10 milliseconds (ms)). Each radio frame can be identified by a System Frame Number (SFN) (e.g., ranging from 0 to 1023).

[0097] Each frame may include multiple consecutively numbered subframes or time slots, and each subframe or time slot may have the same duration. In some examples, a frame may be divided (e.g., in the time domain) into subframes, and each subframe may be further divided into multiple time slots. Alternatively, each frame may include a variable number of time slots, and the number of time slots may depend on the subcarrier spacing. Each time slot may include multiple symbol periods (e.g., depending on the length of the cyclic prefix preceding each symbol period). In some wireless communication systems 100, time slots may be further divided into multiple micro-time slots containing one or more periods. In addition to the cyclic prefix, each period may contain one or more (e.g., N) f (Number) sampling periods. The duration of a period can depend on the subcarrier spacing or frequency band of the operation.

[0098] A subframe, time slot, micro-time slot, or period can be the smallest scheduling unit of the wireless communication system 100 (e.g., in the time domain) and can be referred to as a transmission time interval (TTI). In some examples, the duration of the TTI (e.g., the number of symbol periods in the TTI) can be variable. Additionally or alternatively, the smallest scheduling unit of the wireless communication system 100 can be dynamically selected (e.g., in a burst of shortened TTIs (sTTIs)).

[0099] Physical channels can be multiplexed on carriers using various techniques. Physical control channels and physical data channels can be multiplexed on downlink carriers, for example, using one or more of Time Division Multiplexing (TDM), Frequency Division Multiplexing (FDM), or hybrid TDM-FDM techniques. The control regions (e.g., control resource sets (CORESET)) of physical control channels can be defined by multiple symbol periods and can extend across the system bandwidth or a subset of the system bandwidth of a carrier. One or more control regions (e.g., CORESET) can be configured for a set in UE 115. For example, one or more in UE 115 can monitor or search control regions to obtain control information based on one or more search space sets, and each search space set can include one or more control channel candidates in one or more aggregation levels arranged in a concatenated manner. The aggregation level of control channel candidates can refer to the number of control channel resources (e.g., control channel elements (CCE)) associated with coded information in a control information format having a given payload size. The search space set may include a common search space set configured to send control information to multiple UEs 115 and a UE-specific search space set configured to send control information to a specific UE 115.

[0100] In some examples, base station 105 may be mobile, and thus provide communication coverage for mobile geographic coverage areas 110. In some examples, different geographic coverage areas 110 associated with different technologies may overlap, but different geographic coverage areas 110 may be supported by the same base station 105. In other examples, overlapping geographic coverage areas 110 associated with different technologies may be supported by different base stations 105. Wireless communication system 100 may include, for example, a heterogeneous network in which different types of base stations 105 use the same or different radio access technologies to provide coverage for various geographic coverage areas 110.

[0101] Wireless communication system 100 may be configured to support ultra-reliable communication or low-latency communication, or various combinations thereof. For example, wireless communication system 100 may be configured to support ultra-reliable low-latency communication (URLLC) or mission-critical communication. UE 115 may be designed to support ultra-reliable, low-latency, or mission-critical functions (e.g., mission-critical functions). Ultra-reliable communication may include private or group communication and may be supported by one or more mission-critical services, such as Mission-Critical Talk-to-Talk (MCPTT), Mission-Critical Video (MCVideo), or Mission-Critical Data (MCData). Support for mission-critical functions may include service prioritization, and mission-critical services may be used for public safety or general business applications. The terms ultra-reliable, low-latency, mission-critical, and ultra-reliable low-latency are used interchangeably herein.

[0102] In some examples, UE 115 can also communicate directly with other UE 115 via device-to-device (D2D) communication link 135 (e.g., using peer-to-peer (P2P) or D2D protocols). One or more UE 115s utilizing D2D communication can be within the geographic coverage area 110 of base station 105. Other UE 115s in such a group may be outside the geographic coverage area 110 of base station 105 or unable to receive transmissions from base station 105. In some examples, a group of UE 115s communicating via D2D communication can utilize a one-to-many (1:M) system, in which each UE 115 transmits to every other UE 115 in the group. In some examples, base station 105 facilitates the scheduling of resources for D2D communication. In other cases, D2D communication is performed between UE 115s without involving base station 105.

[0103] Core network 130 can provide user authentication, access authorization, tracking, Internet Protocol (IP) connectivity, and other access, routing, or mobility functions. Core network 130 can be an evolved packet core (EPC) or a 5G core (5GC), and can include at least one control plane entity (e.g., a mobility management entity (MME), access and mobility management functions (AMF)) managing access and mobility, and at least one user plane entity (e.g., a serving gateway (S-GW), packet data network (PDN) gateway (P-GW), user plane functions (UPF)) routing packets or interconnects to external networks. The control plane entity can manage non-access stratum (NAS) functions of UE 115 served by base station 105 associated with core network 130, such as mobility, authentication, and bearer management. User IP packets can be transmitted through the user plane entity, which can provide IP address allocation and other functions. The user plane entity can connect to network operator IP service 150. Operator IP service 150 can include access to the Internet, one or more intranets, IP Multimedia Subsystem (IMS), or packet-switched streaming services.

[0104] Some network devices (such as base station 105) may include sub-components such as access network entity 140, which may be an example of an access node controller (ANC). Each access network entity 140 may communicate with UE 115 through one or more other access network transmitting entities 145, which may be referred to as a radio head, smart radio head, or transmit / receive point (TRP). Each access network transmitting entity 145 may include one or more antenna panels. In some configurations, the various functions of each access network entity 140 or base station 105 may be distributed across various network devices (e.g., radio heads and ANCs) or combined into a single network device (e.g., base station 105).

[0105] Wireless communication system 100 can operate using one or more frequency bands typically in the range of 300 MHz to 300 GHz. The region from 300 MHz to 3 GHz is generally referred to as the Ultra High Frequency (UHF) region or decimeter band because the wavelength range is from approximately 1 decimeter to 1 meter. UHF waves may be blocked or have their direction altered by buildings and environmental features, but these waves can penetrate structures sufficiently to allow macrocells to provide service to UE 115 located indoors. 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, UHF wave transmissions can be associated with smaller antennas and shorter ranges (e.g., less than 100 km).

[0106] Wireless communication system 100 can utilize both licensed and unlicensed radio frequency spectrum bands. For example, wireless communication system 100 can employ Licensed Assisted Access (LAA), LTE Unlicensed (LTE-U) radio access technology, or NR technology in unlicensed bands such as the 5 GHz Industrial, Scientific, and Medical (ISM) band. When operating in unlicensed radio frequency spectrum bands, devices such as base station 105 and UE 115 can employ carrier sensing for collision detection and avoidance. In some examples, operation in unlicensed bands can be based on carrier aggregation configuration and component carriers operating in licensed bands (e.g., LAA). Operation in unlicensed spectrum can include downlink transmission, uplink transmission, P2P transmission, or D2D transmission, etc.

[0107] Base station 105 or 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) communication, or beamforming. The antennas of base station 105 or UE 115 may be located within 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 located together at an antenna assembly (such as an antenna tower). In some examples, the antennas or antenna arrays associated with base station 105 may be located in various geographical locations. Base station 105 may have an antenna array with multiple rows and columns of antenna ports that base station 105 can use to support beamforming for communication with UE 115. Similarly, UE 115 may have one or more antenna arrays that can support various MIMO or beamforming operations. Additionally or alternatively, antenna panels may support radio frequency beamforming of signals transmitted via antenna ports.

[0108] Base station 105 or UE 115 can use MIMO communication to utilize multipath signal propagation and improve spectral efficiency by sending or receiving multiple signals via different spatial layers. This technique can be referred to as spatial multiplexing. For example, multiple signals can be sent by a transmitting device via different antennas or different combinations of antennas. Similarly, multiple signals can be received by a receiving device via different antennas or different combinations of antennas. Each of the multiple signals can be referred to as a separate spatial stream and can carry bits associated with the same data stream (e.g., the same codeword) or different data streams (e.g., different codewords). Different spatial layers can be associated with different antenna ports used for channel measurement and reporting. MIMO techniques include single-user MIMO (SU-MIMO) and multi-user MIMO (MU-MIMO), where in single-user MIMO, multiple spatial layers are sent to the same receiving device, and in multi-user MIMO, multiple spatial layers are sent to multiple devices.

[0109] Beamforming (also known as spatial filtering, directional transmission, or directional reception) is a signal processing technique that can be used at a transmitting or receiving device (e.g., base station 105, UE 115) to shape and control an antenna beam (e.g., transmit beam, receive beam) along a spatial path between the transmitting and receiving devices. Beamforming can be implemented by combining signals communicated via antenna elements of an antenna array such that some signals propagating in a particular direction relative to the antenna array experience constructive interference, while other signals experience destructive interference. Adjustments to the signals communicated via the antenna elements can include the transmitting or receiving device applying amplitude offset, phase offset, or both to the signals carried by the antenna elements associated with that device. The adjustments associated with each of the antenna elements can be defined by a beamforming weight set associated with a particular direction (e.g., relative to the antenna array of the transmitting or receiving device, or relative to some other direction).

[0110] Base station 105 or UE 115 may use beam scanning technology as part of beamforming operations. For example, base station 105 may use multiple antennas or antenna arrays (e.g., antenna panels) to perform beamforming operations for directional communication with UE 115. Some signals (e.g., synchronization signals, reference signals, beam selection signals, or other control signals) may be transmitted multiple times by base station 105 in different directions. For example, base station 105 may transmit signals according to different beamforming weight sets associated with different transmission directions. Transmissions in different beam directions may be used (e.g., by a transmitting device such as base station 105 or by a receiving device such as UE 115) to identify the beam direction for later transmission or reception by base station 105.

[0111] Some signals (such as data signals associated with a specific receiving device) may be transmitted by base station 105 in a single beam direction (e.g., the direction associated with the receiving device, such as UE 115). In some examples, the beam direction associated with transmission along a single beam direction may be determined based on the signals transmitted in one or more beam directions. For example, UE 115 may receive one or more signals transmitted by base station 105 in different directions and may report to base station 105 an indication of signals received by UE 115 with the highest signal quality or other acceptable signal quality.

[0112] In some examples, transmission via a device (e.g., by base station 105 or UE 115) may be performed using multiple beam directions, and the device may use a combination of digital precoding or RF beamforming to generate a combined beam for transmission (e.g., from base station 105 to UE 115). UE 115 may report feedback indicating precoding weights for one or more beam directions, and this feedback may correspond to a configured number of beams across the system bandwidth or one or more subbands. Base station 105 may transmit reference signals (e.g., cell-specific reference signals (CRS), CSI-RS), which may be pre-coded or uncoded. UE 115 may provide feedback for beam selection, which may be a pre-coded matrix indicator (PMI) or codebook-based feedback (e.g., multi-panel codebook, linear combination codebook, port selection codebook). Although these techniques are described with reference to the signals transmitted by the base station 105 in one or more directions, the UE 115 may employ similar techniques to transmit signals multiple times in different directions (e.g., to identify the beam direction for subsequent transmission or reception of the UE 115) or to transmit signals in a single direction (e.g., to transmit data to a receiving device).

[0113] A receiving device (e.g., UE 115) may attempt multiple receiving configurations (e.g., directional listening) when receiving various signals (such as synchronization signals, reference signals, beam selection signals, or other control signals) from base station 105. For example, the receiving device may attempt multiple receiving directions by: receiving via different antenna subarrays; processing the received signal according to different antenna subarrays; receiving according to different sets of receiving beamforming weights applied to signals received at multiple antenna elements of the antenna array (e.g., different directional listening weight sets); or processing the received signal according to different sets of receiving beamforming weights applied to signals received at multiple antenna elements of the antenna array, any of which can be referred to as "listening" according to different receiving configurations or receiving directions. In some examples, the receiving device may use a single receiving configuration to receive along a single beam direction (e.g., when receiving data signals). The single receiving configuration may be aligned in a beam direction determined based on listening according to different receiving configuration directions (e.g., based on a beam direction with the highest signal strength, highest signal-to-noise ratio (SNR), or other acceptable signal quality determined by listening according to multiple beam directions).

[0114] The wireless communication system 100 can be a packet-based network operating according to a layered protocol stack. In the user plane, communication at the bearer or Packet Data Convergence Protocol (PDCP) layer can be IP-based. The Radio Link Control (RLC) layer can perform packet segmentation and reassembly for communication on logical channels. The Media Access Control (MAC) layer can perform priority processing and multiplex logical channels into transport channels. The MAC layer can also use error detection techniques, error correction techniques, or both to support retransmissions at the MAC layer to improve link efficiency. In the control plane, the Radio Resource Control (RRC) protocol layer can provide the establishment, configuration, and maintenance of RRC connections between the UE 115 and the base station 105 or core network 130 that supports user plane data radio bearers. At the physical layer, transport channels can be mapped to physical channels.

[0115] UE 115 and base station 105 can communicate using uplink transmission (e.g., non-codebook-based uplink transmission), and base station 105 can configure multiple SRS resource sets available for uplink transmissions (e.g., non-codebook-based transmissions) from UE 115. When scheduling uplink transmissions, base station 105 can indicate one or more SRS resource sets associated with the uplink transmission, and thereby can indicate the uplink beam used for the uplink transmission (e.g., in the example of non-codebook-based uplink transmission, multiple SRS resource sets can be configured to use non-codebook-based transmissions, and the indicated uplink beam can correspond to CSI-RS resources associated with the indicated SRS resource set).

[0116] Base station 105 may send a downlink control message to UE 115, indicating one or more selected SRS resource sets and one or more selected SRS resources within each of the one or more selected SRS resource sets. The downlink control message may use fields in the downlink control message or one or more bits of fields in the downlink control message to indicate one or more selected SRS resource sets. UE 115 may receive the downlink control message and may send uplink transmissions based on the information received in the downlink control message. For example, UE 115 may use the same pre-decoder and spatial filter (e.g., the same beam) as the indicated SRS resources to send uplink transmissions. Therefore, UE 115 may use the same beam as at least one of the indicated SRS resource sets to send uplink transmissions.

[0117] Figure 2An example of a wireless communication system 200 supporting a reference signal configuration for uplink beam selection according to aspects of this disclosure is shown. In some examples, the wireless communication system 200 may implement aspects of the wireless communication system 100. For example, the wireless communication system 200 may include a base station 105-a and a UE 115-a, which may represent a reference... Figure 1 Examples of base station 105 and UE 115 are described herein. As described herein, base station 105-a can configure SRS resources for UE 115-a, UE 115-a can use SRS resources to transmit SRS, and base station 105-a can indicate one or more SRS resources for associated uplink transmission.

[0118] In some examples, UE 115-a and base station 105-a can communicate based on non-codebook-based uplink transmissions. In some cases, base station 105-a can avoid configuring spatial relation information (e.g., SpatialRelationInfo) and CSI-RS resource 210 for UE 115-a for the SRS resource set 215. Spatial relation information can provide the spatial relationship between an indicated reference signal (e.g., Synchronization Signal Block (SSB), CSI-RS, or SRS) and a target SRS resource within the SRS resource set to determine the uplink beam of the target SRS resource. In one example, base station 105-a can configure CSI-RS resource 210 for UE 115-a to compute the pre-decoder for the SRS resource set 215, and therefore can therefore not configure spatial relation information for any SRS resource in the SRS resource set 215 for UE 115-a.

[0119] The proposed technique enables base station 105-a to configure multiple sets of SRS resources 215 available for uplink transmission from UE 115-a (e.g., non-codebook-based uplink transmission, in which case multiple sets of SRS resources 215 can be configured to use non-codebook settings). In some cases, each SRS resource 215 can be configured with an associated CSI-RS resource 210 (e.g., non-zero power (NZP) CSI-RS resource 210), and each CSI-RS resource 210 can correspond to an uplink beam. When scheduling uplink transmission 225, base station 105-a can indicate one or more sets of SRS resources 215 associated with uplink transmission 225, and thereby can indicate the uplink beam used for uplink transmission 225 (e.g., an uplink beam corresponding to the CSI-RS resource 210 associated with the indicated set of SRS resources 215, or an uplink beam otherwise associated with the indicated set of SRS resources 215).

[0120] In one example, base station 105-a may send configuration message 205 to UE 115-a (e.g., via RRC signaling). Configuration message 205 may indicate the configuration of multiple SRS resource sets 215 for uplink transmission from UE 115-a. For example, configuration message 205 may indicate SRS resource sets 215-a and 215-b, and in some cases, may indicate CSI-RS resources 210-a and 210-b associated with SRS resource sets 215-a and 215-b respectively (e.g., CSI-RS associated using RRC parameters). In some examples, base station 105-a may configure and indicate one SRS resource set 215 (e.g., and a corresponding CSI-RS resource 210), and in some examples, base station 105-a may indicate more than two SRS resource sets 215 (e.g., and a corresponding CSI-RS resource 210). In some cases, base station 105-a can send CSI-RS to UE 115-a via indicated CSI-RS resources 210-a and 210-b, and UE 115-a can measure CSI-RS resources 210-a and 210-b. UE 115-a can use the measurements of Channel State Information (CSI) resources 210-a and 210-b to calculate the pre-decoders for SRS resource sets 215-a and 215-b, respectively.

[0121] UE 115-a can transmit SRS to base station 105-a using SRS resource sets 215-a and 215-b, and can use corresponding pre-decoders to transmit SRS. For example, each SRS resource set 215 may include up to four SRS resources, and UE 115-a can transmit SRS to base station 105-a using each SRS resource in each SRS resource set 215. SRS resources in SRS resource set 215-a may be associated with a first pre-decoder (e.g., based on CSI-RS 210-a), and SRS resources in SRS resource set 215-b may be associated with a second pre-decoder (e.g., based on CSI-RS 210-b). Base station 105-a can receive pre-decoded SRS through SRS resources and can select SRS resource set 215 and one or more SRS resources within SRS resource set 215 for uplink transmission 225. For example, base station 105-a can select SRS resource set 215-b for uplink transmission 225 based on the uplink beam associated with SRS resource set 215-b (e.g., CSI-RS 210-b). Base station 105-a can also select one or more SRS resources within SRS resource set 215-b for uplink transmission 225.

[0122] Base station 105-a may send downlink control message 220 (e.g., DCI) to UE 115-a, indicating a selected SRS resource set 215-b and selected SRS resources(s) within SRS resource set 215-b. For example, fields of downlink control message 220 (e.g., SRS Resource Indicator (SRI) field) may indicate one or more selected SRS resources. Downlink control message 220 may also use different fields in downlink control message 220 or use one or more bits (e.g., most significant bit (MSB)) of the SRI field of downlink control message 220 to indicate the selected SRS resource set 215-b. The indicated SRS resource set 215-b and SRS resources may be associated with the most recent SRS transmission (e.g., prior to downlink control message 220).

[0123] UE 115-a can receive downlink control message 220 and can transmit uplink transmission 225 based on the information received in downlink control message 220. For example, UE 115-a can use the same pre-decoder (e.g., a second pre-decoder) and spatial filter (e.g., the same beam) as the indicated SRS resource to transmit uplink transmission 225. Therefore, UE 115-a can use the same beam as the indicated SRS resource set 215-b to transmit uplink transmission 225. In some cases, multiple selected SRS resources can determine the rank or number of layers used for uplink transmission 225. For example, if base station 105-a selects two SRS resources and indicates the selected SRS resources to UE 115-a via downlink control message 220, then UE 115-a can transmit uplink transmission 225 at two layers.

[0124] In some cases, base station 105-a may instruct UE 115-a to use multiple transmission opportunities to transmit uplink transmission 225. Therefore, base station 105-a may indicate different uplink beams for different subsets of transmission opportunities. For example, base station 105-a may include an indication of a selected set of SRS resources 215 (e.g., and corresponding SRS resources within that set) for each subset of transmission opportunities within downlink control message 220. As described herein, downlink control message 220 may indicate each of the selected SRS resource sets 215 via a corresponding field in downlink control message 220 or using one or more bits (e.g., MSB) of the SRI field of downlink control message 220.

[0125] Although the examples described herein refer to different SRS resource sets 215, the same examples can be applied to different SRS resource groups configured within an SRS resource set 215. For example, SRS resource set 215 may be configured with multiple SRS resource groups. SRS resource groups may be implicitly configured (e.g., specified via network configuration or wireless communication standards) or explicitly configured (e.g., configured via RRC configuration). An example of implicit configuration may include grouping SRS resources within each comb into corresponding SRS resource groups. In some cases, each SRS resource group may be associated with a different CSI-RS resource 210 and a corresponding uplink beam. In some cases, for a CSI-RS resource 210 associated with SRS resource set 215, each SRS resource group may be associated with a different TCI state (e.g., and a corresponding uplink beam). For example, a first antenna port group for CSI-RS resource 210 may be associated with a first TCI state (e.g., and a first corresponding uplink beam), and a second antenna port group for CSI-RS resource 210 may be associated with a second TCI state (e.g., and a second corresponding uplink beam).

[0126] Base station 105-a may use the methods described herein, such as SRS resource set 215 and resource descriptions within SRS resource set 215, to indicate one or more selected SRS resource groups and selected SRS resources within those SRS resource groups. For example, downlink control message 220 may use corresponding fields in downlink control message 220 or one or more bits (e.g., MSB) of the SRI field of downlink control message 220 to indicate one or more selected SRS resource groups. Figure 3-5 Further examples of selecting one or more SRS resource sets 215 and SRS resources within SRS resource sets 215 are described, and these examples can be equally applied to selecting one or more SRS resource groups and SRS resources within SRS resource groups. In some cases, when configuring SRS resource groups, base station 105-a can configure SRS resource set 215 to include more than four SRS resources (e.g., up to eight or 16 SRS resources).

[0127] Figure 3 An example of a reference signal configuration 300 supporting a reference signal configuration for uplink beam selection according to aspects of this disclosure is shown. In some examples, the reference signal configuration 300 may implement aspects of wireless communication systems 100 or 200. For example, base station 105 may use the reference signal configuration 300 to select an uplink beam and indicate it to UE 115, wherein base station 105 and UE 115 may be reference... Figure 1 and Figure 2 Examples of base station 105 and UE 115 are described.

[0128] For reference Figure 2 The base station 105 can be configured with multiple sets of SRS resources 315 (e.g., using sets of SRS resources 315 configured as non-codebook) available for uplink transmission from the UE 115 (e.g., as an example, non-codebook-based transmission). In some cases, each set of SRS resources 315 can be configured with an associated CSI-RS resource 310 (e.g., NZP CSI-RS resource 310), and each CSI-RS resource 310 may correspond to an uplink beam. In this case, the base station 105 can transmit CSI-RS to the UE 115 via the indicated CSI-RS resources 310 (e.g., CSI-RS resources 310-a and 310-b), and the UE 115 can measure the CSI-RS resources 310. The UE 115 can use the measurement of the CSI-RS resources 310 to calculate the corresponding pre-decoder for each set of SRS resources 315 (e.g., SRS resource sets 315-a and 315-b). Although Figure 3 Two sets of SRS resources 315 and corresponding CSI-RS resources 310 are shown, but the examples described herein can be extended to any number of SRS resource sets 315 and corresponding CSI-RS resources 310.

[0129] UE 115 can transmit SRS to base station 105 using SRS resource set 315, and can use a corresponding pre-decoder to transmit SRS. For example, SRS resource 305 in SRS resource set 315-a can be associated with a first pre-decoder (e.g., based on CSI-RS 310-a), and SRS resource 305 in SRS resource set 315-b can be associated with a second pre-decoder (e.g., based on CSI-RS 310-b). Base station 105 can receive pre-decoded SRS through SRS resource 305, and can select SRS resource set 315 and one or more SRS resources 305 within SRS resource set 315 for uplink transmission 325 (as an example, this can be based on a non-codebook). Base station 105 can indicate the selected SRS resource set 315 and one or more SRS resources 305 via DCI 320 (e.g., downlink control message) scheduling uplink transmission 325. UE 115 can receive DCI 320 and can transmit uplink transmission 325 based on the information received in DCI 320. For example, UE 115 can use the same pre-decoder and spatial filter (e.g., the same beam) as the indicated SRS resource 305 to transmit uplink transmission 325. Therefore, UE 115 can use the same beam as the indicated SRS resource set 315 and the corresponding CSI-RS resource to transmit uplink transmission 325.

[0130] In the first example, DCI 320 may use the first field in DCI 320 to indicate a selected SRS resource set 315. This field may include several bits, where the number of bits can be determined using equation (1):

[0131]

[0132] Where N bits This indicates the number of bits in the field, and N SRS-Sets This indicates the number of SRS resource sets 315 that are configured (e.g., using a non-codebook setting). If two SRS resource sets 315 are configured, this field (e.g., SRS resource set indicator) may include one bit, and if four SRS resource sets are configured, this field may include two bits. A second separate field within the DCI 320 (e.g., the SRI field) may indicate one or more selected SRS resources 305 within the selected SRS resource sets 315.

[0133] In the second example, the DCI 320 may use one or more bits (e.g., MSB) of the SRI field of the DCI 320 to indicate a selected SRS resource set 315. The SRI field may include several bits, wherein the number of bits can be determined using equation (2):

[0134]

[0135] Where N bits N represents the number of bits in the SRI field. SRS-Sets This indicates the number of SRS resource sets 315 that are configured (e.g., using a non-codebook setting), where k represents the k-th indicated SRS resource 305, and L Max This indicates the maximum number of layers used for uplink transmission of 325, and N. SRS This represents the maximum number of SRS resources 305 configured in each SRS resource set 315 (e.g., the maximum number of SRS resources 305 across all configured SRS resource sets 315). In one example of equation (2), This can represent the number of MSBs used to indicate the selected SRS resource set 315, and It can represent the number of least significant bits (LSBs) used to indicate one or more selected SRS resources 305 within the selected SRS resource set 315.

[0136] In some cases, base station 105 may instruct UE 115 to transmit uplink transmission 325 using multiple transmission timings (e.g., multiple repetitions). Therefore, base station 105 may instruct different uplink beams for different subsets of transmission timings. For example, base station 105 may include within DCI 320 an indication of a selected set of SRS resources 315 (e.g., and the corresponding SRS resources 305 within that set) for each subset of transmission timings. Thus, in the third example, DCI 320 may use a field in DCI 320 to indicate one or more selected sets of SRS resources 315. This field may include several bits, the number of which can be determined using equation (3):

[0137]

[0138] Where N bits M represents the number of bits in the field. max This indicates the maximum number of SRS resource sets 315 that can be indicated by base station 105 (e.g., M). max =2), where i represents the i-th indicated SRS resource set 315, and N SRS-Sets This indicates the number of SRS resource sets 315 that are configured (e.g., using a non-codebook setting). In one example of equation (3), DCI 320 may also include M max Each SRI field can indicate one or more SRS resources 305 within its respective indicated SRS resource set 315 (e.g., associated with a respective TRP). In some cases, base station 105 can indicate fewer than M max (for example, i) <M max The number of SRS resource sets 315, in which case UE 115 may ignore SRI fields exceeding the indicated number of SRS resource sets 315 (e.g., UE 115 may ignore the last M). max -i SRI fields), and in some cases, the base station can fill the ignored fields with virtual bits (this can be referred to as filling those fields or setting the bits in those fields to zero).

[0139] In the fourth example, DCI 320 may use one or more bits (e.g., MSB) of the SRI field of DCI 320 to indicate one or more selected SRS resource sets 315. The SRI field may include several bits, wherein the number of bits may be determined using equation (4):

[0140]

[0141] Where N bits M represents the number of bits in the SRI field. maxThis indicates the maximum number of SRS resource sets 315 that can be indicated by base station 105 (e.g., M). max =2), i represents the i-th indicated SRS resource set 315, N SRS-Sets Indicates the number of SRS resource sets 315 configured (e.g., using a non-codebook setting), k indicates the number of SRS resource sets 305 indicated, and L Max This indicates the maximum number of layers used for uplink transmission of 325, and N. SRS This represents the maximum number of SRS resources 305 configured for each SRS resource set 315 (e.g., the maximum number of SRS resources 305 across all configured SRS resource sets 315). In one example of equation (4), This can represent the number of MSBs used to indicate one or more selected SRS resource sets 315, and It can represent the number of LSBs used to indicate one or more selected SRS resources 305 within one or more selected SRS resource sets 315.

[0142] In any example, the number of bits in the SRI field of DCI 320 can be based on the maximum number of SRS resources 305 across all configured SRS resource sets 315 (e.g., N). SRS The number of SRS resources 305 can, for example, support size alignment of DCI 320, such that each DCI 320 can have the same size, regardless of the number of SRS resources 305 configured for one or more selected SRS resource sets 315. In some cases, SRS resource sets 315 can be configured such that each SRS resource set 315 includes the same number of SRS resources 305. For example, SRS resource sets 315 may be restricted by network or wireless communication standards to have the same number of SRS resources 305.

[0143] In some cases, SRS resource set 315 can be configured such that each transmission timing of uplink transmission 325 is associated with the same number of layers (e.g., the same number of indicated SRS resources 305 within each selected SRS resource set). For example, transmission timings can be restricted by network or wireless communication standards to have the same number of layers. In some cases, having the same number of layers can reduce the overhead of DCI 320, which might otherwise indicate different antenna ports for different layers, thereby increasing the number of fields in DCI 320. If each transmission timing of uplink transmission 325 is associated with the same number of layers, the number of LSBs in the SRI field of the DCI can be given by equation (5):

[0144]

[0145] Where N bits This indicates the number of LSBs in the SRI field, where k represents the number of SRS resources 305 indicated, and L... Max N represents the maximum number of layers used for uplink transmission of 325. SRS This represents the maximum number of SRS resources 305 configured for each SRS resource set 315 (e.g., the maximum number of SRS resources 305 across all configured SRS resource sets 315), and M. max This indicates the maximum number of SRS resource sets 315 that can be indicated by base station 105 (e.g., M). max =2). In some examples of equation (5), the number of SRS resources indicated (e.g., k) may not be controlled individually within each SRS resource set 315 (e.g., k is the same value for each SRS resource set 315).

[0146] Figure 4 An example of a communication scheme 400 supporting a reference signal configuration for uplink beam selection according to aspects of this disclosure is shown. In some examples, communication scheme 400 may implement aspects of wireless communication system 100 or 200. For example, UE 115 may use communication scheme 400 to send an uplink transmission to base station 105 (in some cases, this may be non-codebook based), where UE 115 and base station 105 may be reference... Figure 1-3 Examples of UE 115 and base station 105 are described herein. In some cases, uplink transmission may include multiple transmission timings (e.g., repetition). For example, uplink transmission may include a first set of transmission timings 415 and a second set of transmission timings 420. In some cases, UE 115 may transmit different sets of transmission timings to different TRPs in multiple TRPs 405 or to different panels in multiple panels associated with a receiving entity (e.g., to increase transmission diversity). It should be understood that any examples described herein with reference to TRP 405 may be additionally or optionally applied to panels.

[0147] In some cases, if a transmission timing or set of transmission timings is blocked at one TRP 405 (e.g., a link is blocked), another transmission timing or set of transmission timings can be successfully decoded at another TRP 405. Different transmission timings can be transmitted in the same TTI (e.g., a time slot) or in different TTIs and can correspond to the same transmission block (TB) transmitted on the uplink. Multiple repetitions or transmission timings can be configured by base station 105 using RRC or can be dynamically indicated by base station 105 (e.g., via the Time Domain Resource Allocation (TDRA) field in the DCI). Because different transmission timings can be sent to different TRPs 405, different beams can support transmission diversity at different TRPs 405. For example, transmission timing 415 can be directed to TRP 405-a, and transmission timing 420 can be directed to TRP 405-b.

[0148] For reference Figure 2 and Figure 3 The base station 105 can be configured with multiple SRS resource sets available for uplink transmission from the UE 115 (e.g., non-codebook-based transmission, in which case the multiple SRS resource sets can be configured to use non-codebook settings). In some cases, such as the non-codebook-based example, each SRS resource set can be configured with an associated CSI-RS resource (e.g., NZP CSI-RS resource), and each CSI-RS resource can correspond to an uplink beam. The UE 115 can transmit SRS to the base station 105 using the SRS resource sets, and can use a corresponding pre-decoder to transmit SRS (e.g., based on the corresponding CSI-RS resource). The base station 105 can receive pre-decoded SRS and can select one or more SRS resource sets and one or more SRS resources within the selected SRS resource sets for uplink transmission.

[0149] For example, base station 105 can select different uplink beams for different transmission timing sets (e.g., different beams for transmission timings 415 and 420, respectively), wherein each uplink beam can be associated with an SRS resource set (e.g., and a corresponding CSI-RS resource). For example, base station 105 can associate a first SRS resource set with transmission timing 415 and a second SRS resource set with transmission timing 420. The first uplink beam can be used for transmission timing 415, wherein, in some cases, the first uplink beam can represent the same spatial transmission filter for receiving the CSI-RS resource associated with the first SRS resource set. The second uplink beam can be used for transmission timing 420, wherein, in some cases, the second uplink beam can represent the same spatial transmission filter for receiving the CSI-RS resource associated with the second SRS resource set. Base station 105 can include an indication of the selected SRS resource set (e.g., and the corresponding SRS resource within that set) for each subset of transmission timings within the DCI 410 for scheduling uplink transmissions.

[0150] Base station 105 can use reference Figure 3 The described method indicates the selected SRS resource set and SRS resources. For example, DCI410 may use the corresponding field in DCI 410 or one or more bits (e.g., MSB) of the SRI field of DCI to indicate the selected SRS resource set. In some cases, as referenced... Figure 3 The SRS resource set can be configured such that each uplink transmission timing is associated with the same layer (e.g., an SRS resource). In some cases, the SRS resource set can be configured such that the uplink transmission timing set can be associated with different layers (e.g., SRS resources). Each transmission timing set can be associated with some antenna ports, and the antenna ports may be different for each transmission timing set.

[0151] In some cases, base station 105 may use a field in DCI 410 to indicate the antenna port for each transmission timing set. For example, the antenna port field in DCI 410 may indicate the demodulation reference signal (DMRS) port corresponding to the SRS resource set (e.g., and the corresponding transmission timing set) associated with the maximum number (e.g., maximum layer number) of indicated SRS resources. Another transmission timing set may use a subset of indicated DMRS ports starting from the first indicated DMRS port.

[0152] In one example, DCI 410 may indicate a first SRS resource set for transmission timing 415 and a second SRS resource set for transmission timing 420. DCI 410 may indicate three layers (e.g., the three indicated SRS resources) associated with each transmission timing 415 of the first SRS resource set (e.g., SRS resources 1, 3, and 4). DCI 410 may indicate two layers (e.g., the two indicated SRS resources) associated with each transmission timing 420 of the second SRS resource set (e.g., SRS resources 2 and 3). DCI 410 may also indicate an index value for the DMRS port set used for the first SRS resource set. For example, the index may be associated with a set of three DMRS ports (e.g., DMRS ports 0, 1, and 6). Therefore, UE 115 may map the indicated three DMRS ports to the three layers of each transmission timing 415. UE 115 can determine that the first two DMRS ports of the indicated DMRS ports (e.g., three DMRS ports) will be used for transmission timing 420 (e.g., a transmission timing with fewer layers). Therefore, UE 115 can map the first two DMRS ports (e.g., DMRS ports 0 and 1) to two layers of each transmission timing 420.

[0153] UE 115 can use the indicated port, the indicated uplink beam, and based on SRS resources to send uplink transmissions to base station 105 (e.g., including a transmission timing set). By using different beams to send uplink transmissions to different TRP 405s, uplink transmissions can have improved transmission diversity and quality.

[0154] Figure 5 An example of a processing flow 500 supporting reference signal configuration for uplink beam selection according to aspects of this disclosure is shown. In some examples, processing flow 500 may implement aspects of wireless communication system 100 or 200, or be implemented by aspects of wireless communication system 100 or 200. In some cases, processing flow 500 may also implement aspects of reference signal configuration 300 or communication scheme 400, or be implemented by aspects of reference signal configuration 300 or communication scheme 400. Base station 105-b and UE 115-b may implement processing flow 500, for example, to configure and transmit uplink transmission from UE 115-b to base station 105-b. UE 115-b and base station 105-b may represent reference... Figure 1-4 Examples of UE 115 and base station 105 described.

[0155] In the following description of processing flow 500, operations between UE 115-b and base station 105-b may be transmitted in a different order than shown, or operations performed by UE 115-b and base station 105-b may be performed in a different order or at different times. Some operations may also be excluded from processing flow 500, or other operations may be added to processing flow 500. Although operations of processing flow 500 are shown to be performed by UE 115-b and base station 105-b, some aspects of some operations may also be performed by one or more other wireless devices.

[0156] At 505, base station 105-b can send an SRS configuration for uplink transmission to UE 115-b. The SRS configuration may include information indicating multiple SRS resource sets. Additionally or alternatively, in some cases (e.g., for non-codebook-based transmission), the SRS configuration may include multiple downlink reference signaling resources (e.g., CSI-RS resources), where each SRS resource set may be associated with a corresponding downlink reference signaling resource among the multiple downlink reference signaling resources. As described herein, downlink reference signaling resources may be associated with spatial transmission filters (e.g., uplink beams) that can be used for uplink transmission.

[0157] In 510, in some cases, base station 105-b may transmit multiple downlink reference signals (e.g., transmit CSI-RS) to UE 115-b using the indicated downlink reference signal resources. UE 115-b may receive the downlink reference signals, may measure the downlink reference signals, and may use the measurement of the downlink reference signals to determine the pre-decoder of the SRS associated with the multiple SRS resource sets.

[0158] In 515, in some cases, UE 115-b can transmit one or more SRSs to base station 105-b through the indicated SRS resource set. In some cases, UE 115-b can transmit SRS through the SRS resource set using a pre-decoder based on a downlink reference signal (e.g., CSI-RS) associated with the SRS resource set.

[0159] At 520, base station 105-b can select one or more SRS resource sets and one or more SRS resources within the transmitted SRS. For example, base station 105-b can select an SRS resource set corresponding to the uplink beam with the highest signal quality (e.g., highest SNR or best data throughput) at base station 105-b. Similarly, base station 105-b can select one or more SRS resources from the selected SRS resource sets based on the signal quality of one or more SRS resources.

[0160] At 525, base station 105-b can send an indication of one or more selected SRS resource sets to UE 115-b, wherein the one or more selected SRS resource sets can be included in multiple SRS resource sets. For example, base station 105-b can send a DCI (e.g., a downlink control message) to UE 115-b, wherein a field of the DCI or a portion of the SRI field of the DCI can indicate one or more selected SRS resource sets. The DCI can schedule uplink transmission and can indicate one or more selected SRS resource sets for uplink transmission.

[0161] At 530, base station 105-b may send an indication of one or more selected SRS resources to UE 115-b, wherein the one or more selected SRS resource sets may be included in the one or more selected SRS resource sets. For example, the DCI including the indication of one or more selected SRS resource sets may include an SRI field indicating one or more selected SRS resources, or a portion of the SRI field may indicate one or more selected SRS resources.

[0162] In 535, UE 115-b can determine one or more spatial transmission filters (e.g., uplink beams) for uplink transmission based on one or more indicated SRS resource sets. For example, UE 115-b can determine the spatial transmission filter to be the same spatial transmission filter as the downlink reference signal (e.g., CSI-RS) associated with the indicated SRS resource set, or another spatial transmission filter associated with the indicated SRS resource set.

[0163] At 540, UE 115-b can transmit uplink transmissions to base station 105-b based on one or more selected SRS resources and one or more selected SRS resource sets. In some cases, the uplink transmission may correspond to at least one beam direction corresponding to a downlink reference signal resource (e.g., CSI-RS resource) associated with one or more selected SRS resource sets. In some cases, the uplink transmission may include multiple transmission timings, where transmission timings may include transmission timing sets. In some cases, each transmission timing set (e.g., corresponding to a TRP or panel) may be associated with a different uplink beam or beam direction.

[0164] Figure 6A block diagram 600 of a device 605 supporting a reference signal configuration for uplink beam selection according to aspects of this disclosure is shown. Device 605 may be an example of an aspect of UE 115 as described herein. Device 605 may include a receiver 610, a communication manager 615, and a transmitter 620. Device 605 may also include a processor. Each of these components may communicate with each other (e.g., via one or more buses).

[0165] Receiver 610 can receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to reference signal configuration for uplink beam selection). This information can be passed to other components of device 605. Receiver 610 can be a reference... Figure 9 Examples of aspects of the transceiver 920 described. The receiver 610 may utilize a single antenna or an antenna set.

[0166] Communication manager 615 can receive information indicating a set of SRS resource sets, receive an indication of a selected SRS resource set, wherein the selected SRS resource set is included in the set of SRS resource sets, receive indications of one or more selected SRS resources, wherein each selected SRS resource is included in the selected SRS resource set, and transmit uplink based on one or more selected SRS resources and via a beam direction associated with the selected SRS resource set. Communication manager 615 may be an example of an aspect of communication manager 910 described herein.

[0167] The communication manager 615 or its sub-components may be implemented in hardware, software (e.g., executed by a processor), or any combination thereof. If implemented in code executed by a processor, the functionality of the communication manager 615 or its sub-components may be performed by a general-purpose 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 designed to perform the functions described in this disclosure.

[0168] The communication manager 615 or its subcomponents may be physically located in various locations, including being distributed such that portions of the functionality are implemented by one or more physical components in different physical locations. In some examples, the communication manager 615 or its subcomponents may be independent and distinct components according to various aspects of this disclosure. In some examples, the communication manager 615 or its subcomponents may be combined with one or more other hardware components, including but not limited to input / output (I / O) components, transceivers, network servers, other computing devices, one or more other components described in this disclosure, or combinations thereof according to various aspects of this disclosure.

[0169] Transmitter 620 can transmit signals generated by other components of device 605. In some examples, transmitter 620 may be co-located with receiver 610 in a transceiver module. For example, transmitter 620 may be a reference. Figure 9 Examples of aspects of the transceiver 920 described. The transmitter 620 may utilize a single antenna or a set of antennas.

[0170] In other examples described herein, actions performed by the communication manager 615 can be implemented to achieve one or more potential advantages. For example, the communication manager 615 can reduce interference and increase throughput at the wireless device (e.g., UE 115) by supporting uplink beam selection for non-codebook-based transmissions. Uplink beaming can reduce latency, interference, and power consumption (or any combination thereof) compared to other systems and techniques, such as those that do not support uplink beam selection for non-codebook-based transmissions. Therefore, the communication manager 615 can save power and increase battery life at the wireless device (e.g., UE 115) by strategically improving communication quality.

[0171] Figure 7 A block diagram 700 of a device 705 supporting the configuration of reference signals for uplink beam selection according to aspects of this disclosure is shown. Device 705 may be an example of aspects of device 605 or UE 115 as described herein. Device 705 may include a receiver 710, a communication manager 715, and a transmitter 740. Device 705 may also include a processor. Each of these components may communicate with each other (e.g., via one or more buses).

[0172] Receiver 710 can receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to reference signal configuration for uplink beam selection). This information can be passed to other components of device 705. Receiver 710 can be a reference... Figure 9 Examples of aspects of the transceiver 920 described. The receiver 710 may utilize a single antenna or an antenna set.

[0173] Communication manager 715 may be an example of an aspect of communication manager 615 as described herein. Communication manager 715 may include SRS configuration component 720, SRS resource set identification component 725, SRS resource identification component 730, and uplink transmission component 735. Communication manager 715 may be an example of an aspect of communication manager 910 described herein.

[0174] The SRS configuration component 720 can receive information indicating a set of SRS resource sets.

[0175] SRS resource set identification component 725 can receive an indication of a selected SRS resource set, wherein the selected SRS resource set is included in a set of SRS resource sets.

[0176] SRS resource identification component 730 can receive indications of one or more selected SRS resources, wherein each selected SRS resource is included in a selected SRS resource set.

[0177] The uplink transmission component 735 can transmit uplink data based on one or more selected SRS resources and via a beam direction associated with the selected SRS resource set.

[0178] Transmitter 740 can transmit signals generated by other components of device 705. In some examples, transmitter 740 may be co-located with receiver 710 in a transceiver module. For example, transmitter 740 may be a reference. Figure 9 Examples of aspects of the transceiver 920 described. The transmitter 740 may utilize a single antenna or a set of antennas.

[0179] The processor of the wireless device (e.g., as referenced) Figure 9 The control receiver 710, transmitter 740, or transceiver 920 can increase communication reliability and accuracy by reducing interference and increasing communication quality and available power. The reduced interference can increase communication quality and throughput, and compared to other systems and technologies that, for example, do not support uplink beam selection for non-codebook-based transmissions (which may increase interference and power consumption), this can reduce power consumption (e.g., by referencing...). Figure 8 (Implementation of the system components described herein). Furthermore, the processor of UE 115 can identify one or more aspects of the SRS configuration or selected SRS resources to perform the processing described herein. The processor of the radio device can use the SRS configuration and selected set of SRS resources to perform one or more actions that may result in lower interference and power consumption, as well as power savings and extended battery life at the radio device (e.g., by strategically reducing retransmissions), and other benefits.

[0180] Figure 8 A block diagram 800 of a communication manager 805 supporting reference signal configuration for uplink beam selection according to aspects of this disclosure is shown. The communication manager 805 may be an example of aspects of the communication manager 615, communication manager 715, or communication manager 910 described herein. The communication manager 805 may include an SRS configuration component 810, an SRS resource set identification component 815, an SRS resource identification component 820, an uplink transmission component 825, and a port identification component 830. Each of these modules may communicate directly or indirectly with each other (e.g., via one or more buses).

[0181] SRS configuration component 810 can receive information indicating a set of SRS resource sets. In some examples, SRS configuration component 810 can receive information indicating a set of downlink reference signaling resources, wherein each of the SRS resource sets can be associated with a corresponding downlink reference signaling resource in the downlink reference signaling resource set. In some cases, the downlink reference signaling resource set includes a CSI-RS resource set.

[0182] SRS resource set identification component 815 can receive an indication of a selected SRS resource set, wherein the selected SRS resource set is included in a set of SRS resource sets. In some examples, SRS resource set identification component 815 can receive a DCI message, wherein a first field of the DCI message includes an indication of the selected SRS resource set, and wherein a second field of the DCI message includes an indication of one or more selected SRS resources. In some examples, SRS resource set identification component 815 can determine the number of selected SRS resource sets based on the value of the first field.

[0183] In some examples, the SRS resource set identification component 815 can receive a DCI message, wherein a first set of bits within a field of the DCI message includes an indication of a selected SRS resource set, and wherein a second set of bits within a field of the DCI message includes an indication of one or more selected SRS resources. In some examples, the SRS resource set identification component 815 can receive a DCI message including an authorization for uplink transmission, wherein uplink transmission is transmitted based on the authorization.

[0184] In some examples, the SRS resource set identification component 815 can receive an indication of a second selected SRS resource set, wherein the second selected SRS resource set is included in the set of SRS resource sets. In some cases, the first bit set is more important than the second bit set. In some cases, each bit in the downlink reference signal resource set corresponds to a corresponding beam direction.

[0185] In some cases, within the grant for uplink transmission, an indication of a selected SRS resource set, an indication of one or more selected SRS resources, an indication of a second selected SRS resource set, and an indication of one or more second selected SRS resources are received. In some cases, the grant for uplink transmission schedules multiple opportunities for uplink transmission. In some cases, within the DCI message, an indication of a selected SRS resource set, an indication of one or more selected SRS resources, an indication of a second selected SRS resource set, and an indication of one or more second selected SRS resources are received.

[0186] In some cases, the DCI message receives an indication of a selected SRS resource set, an indication of one or more selected SRS resources, an indication of a second selected SRS resource set, and an indication of one or more second selected SRS resources. In some cases, the first field of the DCI message indicates the selected SRS resource set and the second selected SRS resource set.

[0187] In some cases, the DCI message receives an indication of a selected SRS resource set, an indication of one or more selected SRS resources, an indication of a second selected SRS resource set, and an indication of one or more second selected SRS resources within its fields. In some cases, the first bit set within the field indicates the selected SRS resource set and the second selected SRS resource set.

[0188] SRS resource identification component 820 may receive indications of one or more selected SRS resources, wherein each selected SRS resource is included in a selected SRS resource set. In some examples, SRS resource identification component 820 may ignore one or more additional fields of the DCI message associated with the selected SRS resources based on determining the number of selected SRS resource sets.

[0189] In some examples, the SRS resource identification component 820 can receive indications of one or more second-selected SRS resources, wherein each second-selected SRS resource is included in a set of second-selected SRS resources. In some cases, each of the sets of SRS resources includes a corresponding number of SRS resources. In some cases, the number of bits included in the indication of one or more selected SRS resources is based on the maximum corresponding number of SRS resources. In some cases, one or more selected SRS resources correspond to one or more corresponding transmission layers. In some cases, the second field of the DCI message indicates one or more selected SRS resources. In some cases, the third field of the DCI message indicates one or more second-selected SRS resources.

[0190] In some cases, the second set of bits within the field indicates one or more selected SRS resources and one or more second-selected SRS resources. In some cases, the one or more selected SRS resources and the one or more second-selected SRS resources each include the same number of reference signal resources.

[0191] The uplink transmission component 825 can transmit uplink transmissions based on one or more selected SRS resources and via a beam direction associated with the selected SRS resource set. In some examples, the uplink transmission component 825 can transmit one or more SRSs through each of the set of SRS sets, wherein an indication of a selected SRS resource set and an indication of one or more selected SRS resources are received based on the transmission of one or more SRSs.

[0192] In some examples, the uplink transmission component 825 may receive a corresponding downlink reference signal resource using a spatial transmission filter, wherein transmitting uplink transmission via a beam direction corresponding to the corresponding downlink reference signal resource includes transmitting uplink transmission using a spatial transmission filter. In some examples, the uplink transmission component 825 may transmit uplink transmission based on one or more selected SRS resources, including transmitting uplink transmission via one or more corresponding transmission layers.

[0193] In some examples, the uplink transmission component 825 may transmit uplink transmissions based on one or more second-selected SRS resources and via a second beam direction associated with the second-selected SRS resource set. In some cases, the second beam direction may correspond to a second corresponding downlink reference signal resource among a plurality of downlink reference signal resources associated with the second-selected SRS resource set. In some cases, a first set of one or more timings for uplink transmissions is transmitted via the beam direction and based on one or more selected SRS resources. In some cases, a second set of one or more timings for uplink transmissions is transmitted via the second beam direction and based on one or more second-selected SRS resources.

[0194] In some cases, uplink transmissions included in the second set are transmitted after a first timing of uplink transmissions included in the first set and before a second timing of uplink transmissions included in the first set. In some cases, uplink transmissions are transmitted via a beam direction and via a second beam direction within the same transmission time interval. In some cases, the beam direction is associated with a first transmit and receive point or a first panel. In some cases, the second beam direction is associated with a second transmit and receive point or a second panel. In some cases, uplink transmissions include Physical Uplink Shared Channel (PUSCH) transmissions.

[0195] In some examples, the uplink transmission component 825 can transmit uplink transmissions via a beam direction corresponding to the corresponding downlink reference signal resource in the downlink reference signal resource set associated with the selected SRS resource set.

[0196] The port identification component 830 can identify an indication of an antenna port set within a field of the DCI message. In some examples, the port identification component 830 can associate the antenna port set with one or more selected SRS resources, wherein uplink transmissions in a first set of timings are transmitted based on the antenna port set. In some examples, the port identification component 830 can associate a subset of the antenna port set with one or more second-selected SRS resources, wherein uplink transmissions in a second set of timings are transmitted based on the subset of the antenna port set. In some cases, the one or more selected SRS resources include a first number of reference signal resources, and the one or more second-selected SRS resources include a second number of reference signal resources less than the first number.

[0197] Figure 9 A diagram of a system 900 including a device 905 supporting reference signal configuration for uplink beam selection, according to aspects of this disclosure, is shown. Device 905 may be an example of or include components of device 605, device 705, or UE 115 as described herein. Device 905 may include components for bidirectional voice and data communication, including components for transmitting and receiving communications, including a communication manager 910, an I / O controller 915, a transceiver 920, an antenna 925, a memory 930, and a processor 940. These components may communicate electronically via one or more buses (e.g., bus 945).

[0198] The communication manager 910 can receive information indicating a set of SRS resource sets, receive an indication of a selected SRS resource set, wherein the selected SRS resource set is included in the set of SRS resource sets, receive an indication of one or more selected SRS resources, wherein each selected SRS resource is included in the selected SRS resource set, and transmit uplink based on one or more selected SRS resources and via a beam direction associated with the selected SRS resource set.

[0199] The I / O controller 915 can manage the input and output signals of the device 905. The I / O controller 915 can also manage peripheral devices not integrated into the device 905. In some cases, the I / O controller 915 can represent a physical connection or port to an external peripheral device. In some cases, the I / O controller 915 can utilize, for example... Or another known operating system. In other cases, the I / O controller 915 can be represented or interacted with using a modem, keyboard, mouse, touchscreen, or similar device. In some cases, the I / O controller 915 can be implemented as part of a processor. In some cases, the user can interact with the device 905 via the I / O controller 915 or via hardware components controlled by the I / O controller 915.

[0200] Transceiver 920 can communicate bidirectionally via one or more antennas, wired or wireless links as described above. For example, transceiver 920 can represent a wireless transceiver and can communicate bidirectionally with another wireless transceiver. Transceiver 920 may also include a modem for modulating packets and providing the modulated packets to the antenna for transmission, and for demodulating packets received from the antenna.

[0201] In some cases, a wireless device may include a single antenna 925. However, in other cases, the device may have more than one antenna 925, which may be able to transmit or receive multiple wireless signals simultaneously.

[0202] Memory 930 may include random access memory (RAM) and read-only memory (ROM). Memory 930 may store computer-readable, computer-executable code 935, which includes instructions that, when executed, cause the processor to perform the various functions described herein. In some cases, memory 930 may contain a basic I / O system (BIOS), which controls basic hardware or software operations, such as interaction with peripheral components or devices.

[0203] Processor 940 may include intelligent hardware devices (e.g., general-purpose processors, DSPs, CPUs, microcontrollers, ASICs, FPGAs, programmable logic devices, discrete gate or transistor logic components, discrete hardware components, or any combination thereof). In some cases, processor 940 may be configured to use a memory controller to operate a memory array. In other cases, the memory controller may be integrated into processor 940. Processor 940 may be configured to execute computer-readable instructions stored in memory (e.g., memory 930) to cause device 905 to perform various functions (e.g., functions or tasks supporting reference signal configuration for uplink beam selection).

[0204] Code 935 may include instructions for implementing aspects of this disclosure, including instructions for supporting wireless communication. Code 935 may be stored in a non-transitory computer-readable medium such as system memory or other types of memory. In some cases, code 935 may not be directly executed by processor 940, but may enable a computer (e.g., when compiling / translating / interpreting and executing) to perform the functions described herein.

[0205] Figure 10 A block diagram 1000 of a device 1005 supporting reference signal configuration for uplink beam selection according to aspects of this disclosure is shown. Device 1005 may be an example of an aspect of base station 105 as described herein. Device 1005 may include receiver 1010, communication manager 1015, and transmitter 1020. Device 1005 may also include a processor. Each of these components may communicate with each other (e.g., via one or more buses).

[0206] Receiver 1010 can receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to reference signal configuration for uplink beam selection). This information can be passed to other components of device 1005. Receiver 1010 can be a reference... Figure 13 Examples of aspects of the transceiver 1320 described. The receiver 1010 may utilize a single antenna or an antenna set.

[0207] Communication manager 1015 can send information indicating a set of SRS resource sets, send an indication of a selected SRS resource set, wherein the selected SRS resource set is included in the set of SRS resource sets, send indications of one or more selected SRS resources, wherein each selected SRS resource is included in the selected SRS resource set, and receive uplink transmission based on one or more selected SRS resources and via a beam direction associated with the selected SRS resource set. Communication manager 1015 may be an example of an aspect of communication manager 1310 described herein.

[0208] The communication manager 1015 or its subcomponents may be implemented in hardware, software (e.g., executed by a processor), or any combination thereof. If implemented in code executed by a processor, the functionality of the communication manager 1015 or its subcomponents may be performed by a general-purpose processor, DSP, ASIC, FPGA or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described in this disclosure.

[0209] The communication manager 1015 or its subcomponents may be physically located in various locations, including being distributed such that portions of the functionality are implemented by one or more physical components in different physical locations. In some examples, the communication manager 1015 or its subcomponents may be independent and distinct components according to various aspects of this disclosure. In some examples, the communication manager 1015 or its subcomponents may be combined with one or more other hardware components, including but not limited to I / O components, transceivers, network servers, another computing device, one or more other components described in this disclosure, or combinations thereof according to various aspects of this disclosure.

[0210] Transmitter 1020 can transmit signals generated by other components of device 1005. In some examples, transmitter 1020 may be co-located with receiver 1010 in a transceiver module. For example, transmitter 1020 may be a reference. Figure 13 Examples of aspects of the transceiver 1320 described. The transmitter 1020 may utilize a single antenna or a set of antennas.

[0211] Figure 11 A block diagram 1100 of a device 1105 supporting reference signal configuration for uplink beam selection according to aspects of this disclosure is shown. Device 1105 may be an example of aspects of device 1005 as described herein or base station 105. Device 1105 may include receiver 1110, communication manager 1115, and transmitter 1140. Device 1105 may also include a processor. Each of these components may communicate with each other (e.g., via one or more buses).

[0212] Receiver 1110 can receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to reference signal configuration for uplink beam selection). This information can be passed to other components of device 1105. Receiver 1110 can be a reference... Figure 13 Examples of aspects of the transceiver 1320 described. The receiver 1110 may utilize a single antenna or an antenna set.

[0213] Communication manager 1115 may be an example of an aspect of communication manager 1015 as described herein. Communication manager 1115 may include SRS configuration manager 1120, SRS resource set component 1125, SRS resource component 1130, and uplink receive component 1135. Communication manager 1115 may be an example of an aspect of communication manager 1310 described herein.

[0214] The SRS Configuration Manager 1120 can send information indicating a set of SRS resource sets.

[0215] SRS resource set component 1125 can send an indication of a selected SRS resource set, wherein the selected SRS resource set is included in a set of SRS resource sets.

[0216] SRS resource component 1130 can send indications of one or more selected SRS resources, wherein each selected SRS resource is included in a selected SRS resource set.

[0217] The uplink receiving component 1135 can receive uplink transmissions based on one or more selected SRS resources and via beam directions associated with the selected SRS resource set.

[0218] Transmitter 1140 can transmit signals generated by other components of device 1105. In some examples, transmitter 1140 may be co-located with receiver 1110 in a transceiver module. For example, transmitter 1140 may be a reference. Figure 13 Examples of aspects of the transceiver 1320 described. The transmitter 1140 may utilize a single antenna or a set of antennas.

[0219] Figure 12 A block diagram 1200 of a communication manager 1205 supporting reference signal configuration for uplink beam selection according to aspects of this disclosure is shown. The communication manager 1205 may be an example of aspects of the communication manager 1015, communication manager 1115, or communication manager 1310 described herein. The communication manager 1205 may include an SRS configuration manager 1210, an SRS resource set component 1215, an SRS resource component 1220, an uplink receive component 1225, and a port component 1230. Each of these modules may communicate directly or indirectly with each other (e.g., via one or more buses).

[0220] SRS Configuration Manager 1210 can send information indicating a set of SRS resource sets. In some examples, SRS Configuration Manager 1210 can send information indicating a set of downlink reference signaling resources, wherein each of the SRS resource sets can be associated with a corresponding downlink reference signaling resource in the downlink reference signaling resource set. In some cases, the downlink reference signaling resource set includes a CSI-RS resource set.

[0221] SRS resource set component 1215 can send an indication of a selected SRS resource set, wherein the selected SRS resource set is included in a collection of SRS resource sets. In some examples, SRS resource set component 1215 can determine the selected SRS resource set and one or more selected SRS resources based on one or more SRSs. In some examples, SRS resource set component 1215 can send a DCI message, wherein a first field of the DCI message includes an indication of the selected SRS resource set, and wherein a second field of the DCI message includes an indication of one or more selected SRS resources.

[0222] In some examples, the SRS resource set component 1215 may determine the number of selected SRS resource sets. In some examples, the SRS resource set component 1215 may populate one or more additional fields of a DCI message associated with the selected SRS resources based on the determined number of selected SRS resource sets. In some examples, the SRS resource set component 1215 may send a DCI message in which a first set of bits within a field of the DCI message includes an indication of the selected SRS resource sets, and in which a second set of bits within a field of the DCI message includes an indication of one or more selected SRS resources.

[0223] In some examples, SRS resource set component 1215 may send a DCI message including an authorization for uplink transmission, based on which uplink transmission is performed. In some examples, SRS resource set component 1215 may send an indication of a second selected SRS resource set, wherein the second selected SRS resource set is included in the set of SRS resource sets. In some cases, the first bit set is more important than the second bit set. In some cases, each of the downlink reference signal resource sets corresponds to a corresponding beam direction.

[0224] In some cases, within the grant for uplink transmission, an indication of a selected SRS resource set, an indication of one or more selected SRS resources, an indication of a second selected SRS resource set, and an indication of one or more second selected SRS resources are transmitted. In some cases, the grant for uplink transmission schedules multiple opportunities for uplink transmission.

[0225] In some cases, the DCI message may contain an indication of a selected SRS resource set, an indication of one or more selected SRS resources, an indication of a second selected SRS resource set, and an indication of one or more second selected SRS resources. In other cases, the first field of the DCI message may indicate the selected SRS resource set and the second selected SRS resource set.

[0226] In some cases, the DCI message fields transmit an indication of a selected SRS resource set, an indication of one or more selected SRS resources, an indication of a second selected SRS resource set, and an indication of one or more second selected SRS resources. In some cases, the first bit set in the field indicates the selected SRS resource set and the second selected SRS resource set.

[0227] SRS resource component 1220 can send indications of one or more selected SRS resources, wherein each selected SRS resource is included in a set of selected SRS resources. In some examples, receiving uplink transmissions based on one or more selected SRS resources includes receiving uplink transmissions via one or more corresponding transmission layers. In some examples, SRS resource component 1220 can send indications of one or more second selected SRS resources, wherein each second selected SRS resource is included in a set of second selected SRS resources.

[0228] In some cases, each of the SRS resource sets includes a corresponding number of SRS resources. In some cases, the number of bits included in the indication of one or more selected SRS resources is based on the maximum corresponding number of SRS resources. In some cases, one or more selected SRS resources correspond to one or more corresponding transmission layers. In some cases, the second field of the DCI message indicates one or more selected SRS resources. In some cases, the third field of the DCI message indicates one or more second-selected SRS resources.

[0229] In some cases, the second set of bits within the field indicates one or more selected SRS resources and one or more second-selected SRS resources. In some cases, the one or more selected SRS resources and the one or more second-selected SRS resources each include the same number of reference signal resources.

[0230] Uplink receiving component 1225 can receive uplink transmissions based on one or more selected SRS resources and via a beam direction associated with the selected SRS resource set. In some examples, uplink receiving component 1225 can receive one or more SRSs through each of the set of SRS sets. In some examples, a corresponding downlink reference signal resource is transmitted using a spatial transmission filter, wherein receiving uplink transmissions via a beam direction corresponding to the corresponding downlink reference signal resource includes receiving uplink transmissions using a spatial transmission filter. In some examples, uplink receiving component 1225 can transmit uplink transmissions via a beam direction corresponding to the corresponding downlink reference signal resource in the downlink reference signal resource set associated with the selected SRS resource set.

[0231] In some examples, the uplink receiving component 1225 may receive uplink transmissions based on one or more second-selected SRS resources and via a second beam direction associated with the second-selected SRS resource set. In some cases, the second beam direction may correspond to a second corresponding downlink reference signal resource among a plurality of downlink reference signal resources associated with the second-selected SRS resource set. In some cases, a first set of one or more timings for receiving uplink transmissions via the beam direction and based on one or more selected SRS resources.

[0232] In some cases, a second set of one or more timings of uplink transmissions are received via a second beam direction and based on one or more second-selected SRS resources. In some cases, timings of uplink transmissions included in the second set are received after a first timing of uplink transmissions included in the first set and before a second timing of uplink transmissions included in the first set. In some cases, uplink transmissions are received via both the beam direction and the second beam direction within the same transmission time interval. In some cases, the beam direction is associated with a first transmit and receive point or a first panel. In some cases, the second beam direction is associated with a second transmit and receive point or a second panel. In some cases, uplink transmissions include PUSCH transmissions.

[0233] Port component 1230 may include an indication of an antenna port set within a field of the DCI message, wherein uplink transmissions in a first set at one or more timings are based on the antenna port set, and wherein uplink transmissions in a second set at one or more timings are based on a subset of the antenna port set. In some cases, one or more selected SRS resources include a first number of reference signal resources, and one or more second selected SRS resources include a second number of reference signal resources less than the first number. In some cases, an indication of a selected SRS resource set, an indication of one or more selected SRS resources, an indication of a second selected SRS resource set, and an indication of one or more second selected SRS resources are received within the DCI message.

[0234] Figure 13A diagram of a system 1300 including a device 1305 supporting a reference signal configuration for uplink beam selection, according to aspects of this disclosure, is shown. Device 1305 may be an example of or include components of device 1005, device 1105, or base station 105 as described herein. Device 1305 may include components for bidirectional voice and data communication, including components for transmitting and receiving communications, including a communication manager 1310, a network communication manager 1315, a transceiver 1320, an antenna 1325, a memory 1330, a processor 1340, and an inter-site communication manager 1345. These components may communicate electronically via one or more buses (e.g., bus 1350).

[0235] The communication manager 1310 can send information indicating a set of SRS resource sets, send an indication of a selected SRS resource set, wherein the selected SRS resource set is included in the set of SRS resource sets, send an indication of one or more selected SRS resources, wherein each selected SRS resource is included in the selected SRS resource set, and receive uplink transmission based on one or more selected SRS resources and via a beam direction associated with the selected SRS resource set.

[0236] The network communication manager 1315 can manage communication with the core network (e.g., via one or more wired backhaul links). For example, the network communication manager 1315 can manage the transmission of data communication by client devices such as one or more UEs 115.

[0237] Transceiver 1320 can communicate bidirectionally via one or more antennas, wired or wireless links as described above. For example, transceiver 1320 can represent a wireless transceiver and can communicate bidirectionally with another wireless transceiver. Transceiver 1320 may also include a modem for modulating packets and providing the modulated packets to the antenna for transmission, and for demodulating packets received from the antenna.

[0238] In some cases, a wireless device may include a single antenna 1325. However, in other cases, the device may have more than one antenna 1325, which may be able to transmit or receive multiple wireless transmissions simultaneously.

[0239] Memory 1330 may include RAM, ROM, or a combination thereof. Memory 1330 may store computer-readable code 1335, which includes instructions that, when executed by a processor (e.g., processor 1340), cause the device to perform the various functions described herein. In some cases, memory 1330 may contain a BIOS, which controls basic hardware or software operations, such as interaction with peripheral components or devices.

[0240] Processor 1340 may include intelligent hardware devices (e.g., general-purpose processors, DSPs, CPUs, microcontrollers, ASICs, FPGAs, programmable logic devices, discrete gate or transistor logic components, discrete hardware components, or any combination thereof). In some cases, processor 1340 may be configured to use a memory controller to operate a memory array. In some cases, the memory controller may be integrated into processor 1340. Processor 1340 may be configured to execute computer-readable instructions stored in memory (e.g., memory 1330) to cause device 1305 to perform various functions (e.g., functions or tasks supporting reference signal configuration for uplink beam selection).

[0241] Inter-site communication manager 1345 can manage communication with other base stations 105 and may include a controller or scheduler for coordinating control of communication with UE 115 with other base stations 105. For example, inter-site communication manager 1345 can coordinate the scheduling of transmissions to UE 115 for various interference mitigation techniques such as beamforming or joint transmission. In some examples, inter-site communication manager 1345 may provide an X2 interface within LTE / LTE-A wireless communication network technology to facilitate communication between base stations 105.

[0242] Code 1335 may include instructions for implementing aspects of this disclosure, including instructions for supporting wireless communication. Code 1335 may be stored in a non-transitory computer-readable medium such as system memory or other types of memory. In some cases, code 1335 may not be directly executed by processor 1340, but may enable a computer (e.g., when compiling / translating / interpreting and executing) to perform the functions described herein.

[0243] Figure 14 A flowchart illustrating a method 1400 for configuring reference signals for uplink beam selection according to aspects of this disclosure is shown. Operation of method 1400 can be implemented by UE 115 or its components, as described herein. For example, operation of method 1400 can be performed by a communication manager, as described in reference... Figures 6 to 9 As described above. In some examples, the UE can execute a set of instructions to control the UE's functional elements to perform the functions described below. Additionally or alternatively, the UE can use dedicated hardware to perform aspects of the functions described below.

[0244] At 1405, the UE can receive information indicating multiple SRS resource sets. Operation of 1405 can be performed according to the methods described herein. In some examples, aspects of operation of 1405 may be as referenced. Figures 6 to 9 The SRS configuration component is used to perform this.

[0245] At 1410, the UE may receive an indication of a selected SRS resource set, wherein the selected SRS resource set includes multiple SRS resource sets. The operation of 1410 can be performed according to the methods described herein. In some examples, aspects of the operation of 1410 may be derived from, as referenced... Figures 6 to 9 The SRS resource set identification component is used to perform this action.

[0246] At 1415, the UE may receive an indication of one or more selected SRS resources, wherein each selected SRS resource is included in a set of selected SRS resources. The operation of 1415 can be performed according to the methods described herein. In some examples, aspects of the operation of 1415 may be as referenced... Figures 6 to 9 The SRS resource identification component is used to perform this.

[0247] At 1420, the UE can transmit uplink data at least in part based on one or more selected SRS resources and via a beam direction associated with the selected SRS resource set. The operation of 1420 can be performed according to the methods described herein. In some examples, aspects of the operation of 1420 can be derived from references... Figures 6 to 9 The uplink transmission component is used to perform this.

[0248] Figure 15 A flowchart illustrating a method 1500 for configuring reference signals for uplink beam selection according to aspects of this disclosure is shown. Operation of method 1500 can be implemented by UE 115 or its components, as described herein. For example, operation of method 1500 can be performed by a communication manager, as described in reference... Figures 6 to 9 As described above. In some examples, the UE can execute a set of instructions to control the UE's functional elements to perform the functions described below. Additionally or alternatively, the UE can use dedicated hardware to perform aspects of the functions described below.

[0249] At 1505, the UE can receive information indicating multiple SRS resource sets. Operation of 1505 can be performed according to the methods described herein. In some examples, aspects of operation of 1505 may be as referenced. Figures 6 to 9 The SRS configuration component is used to perform this.

[0250] In 1510, the UE can transmit one or more SRSs through each of multiple SRS sets, wherein receiving an indication of a selected SRS resource set and an indication of one or more selected SRS resources is based at least in part on transmitting one or more SRSs. The operation of 1510 can be performed according to the methods described herein. In some examples, aspects of the operation of 1510 can be derived from references... Figures 6 to 9 The uplink transmission component is used to perform this.

[0251] At 1515, the UE can receive an indication of a selected SRS resource set, wherein the selected SRS resource set includes multiple SRS resource sets. The operation of 1515 can be performed according to the methods described herein. In some examples, aspects of the operation of 1515 may be as referenced... Figures 6 to 9 The SRS resource set identification component is used to perform this action.

[0252] At 1520, the UE may receive an indication of one or more selected SRS resources, wherein each selected SRS resource is included in a set of selected SRS resources. The operation of 1520 can be performed according to the methods described herein. In some examples, aspects of the operation of 1520 may be derived from, as referenced... Figures 6 to 9 The SRS resource identification component is used to perform this.

[0253] In step 1525, the UE can transmit uplink data at least in part based on one or more selected SRS resources and via a beam direction associated with the selected SRS resource set. Operation of step 1525 can be performed according to the methods described herein. In some examples, aspects of operation of step 1525 can be derived from references... Figures 6 to 9 The uplink transmission component is used to perform this.

[0254] Figure 16 A flowchart illustrating a method 1600 for configuring reference signals for uplink beam selection according to aspects of this disclosure is shown. Operation of method 1600 may be implemented by base station 105 or its components, as described herein. For example, operation of method 1600 may be performed by a communication manager, as described in reference... Figures 10 to 13 As described above. In some examples, the base station may execute a set of instructions to control the functional elements of the base station to perform the functions described below. Additionally or alternatively, the base station may use dedicated hardware to perform aspects of the functions described below.

[0255] In step 1605, the base station can send information indicating multiple SRS resource sets. The operation of step 1605 can be performed according to the methods described herein. In some examples, aspects of the operation of step 1605 may be as referenced. Figures 10 to 13 The SRS configuration manager is used to execute this.

[0256] In 1610, the base station can send an indication of a selected SRS resource set, wherein the selected SRS resource set includes multiple SRS resource sets. The operation of 1610 can be performed according to the methods described herein. In some examples, aspects of the operation of 1610 may be derived from, as referenced... Figures 10 to 13 The SRS resource set component is used to execute this.

[0257] In step 1615, the base station may transmit indications of one or more selected SRS resources, wherein each selected SRS resource is included in a set of selected SRS resources. The operation of step 1615 can be performed according to the methods described herein. In some examples, aspects of the operation of step 1615 may be derived from, as referenced... Figures 10 to 13 The SRS resource component is used to execute this.

[0258] In 1620, the base station can receive uplink transmissions at least in part based on one or more selected SRS resources and via a beam direction associated with the selected SRS resource set. The operation of 1620 can be performed according to the methods described herein. In some examples, aspects of the operation of 1620 can be derived from references... Figures 10 to 13 The uplink receiving component is used to perform this operation.

[0259] Figure 17 A flowchart illustrating a method 1700 for configuring reference signals for uplink beam selection according to aspects of this disclosure is shown. Operation of method 1700 may be implemented by base station 105 or its components, as described herein. For example, operation of method 1700 may be performed by a communication manager, as described in reference... Figures 10 to 13 As described above. In some examples, the base station may execute a set of instructions to control the functional elements of the base station to perform the functions described below. Additionally or alternatively, the base station may use dedicated hardware to perform aspects of the functions described below.

[0260] At 1705, the base station can transmit information indicating multiple SRS resource sets. The operation of 1705 can be performed according to the methods described herein. In some examples, aspects of the operation of 1705 may be as referenced. Figures 10 to 13 The SRS configuration manager is used to execute this.

[0261] In 1710, a base station can receive one or more SRSs through each of multiple SRS sets. The operation of 1710 can be performed according to the methods described herein. In some examples, aspects of the operation of 1710 can be derived from references. Figures 10 to 13 The uplink receiving component is used to perform this operation.

[0262] In 1715, a base station can determine a selected set of SRS resources and one or more selected SRS resources, at least in part, based on one or more SRSs. The operation of 1715 can be performed according to the methods described herein. In some examples, aspects of the operation of 1715 may be derived from, as referenced... Figures 10 to 13 The SRS resource set component is used to execute this.

[0263] At 1720, the base station can send an indication of a selected SRS resource set, wherein the selected SRS resource set includes multiple SRS resource sets. The operation of 1720 can be performed according to the method described herein. In some examples, aspects of the operation of 1720 may be derived from, as referenced... Figures 10 to 13 The SRS resource set component is used to execute this.

[0264] In step 1725, the base station may transmit indications of one or more selected SRS resources, wherein each selected SRS resource is included in a set of selected SRS resources. The operation of step 1725 can be performed according to the methods described herein. In some examples, aspects of the operation of step 1725 may be derived from, as referenced... Figures 10 to 13 The SRS resource component is used to execute this.

[0265] In 1730, the base station can receive uplink transmissions at least in part based on one or more selected SRS resources and via a beam direction associated with the selected SRS resource set. Operation of 1730 can be performed according to the methods described herein. In some examples, aspects of operation of 1730 can be derived from references... Figures 10 to 13 The uplink receiving component is used to perform this operation.

[0266] It should be noted that the methods described herein depict possible implementations, and the operations and steps can be rearranged or otherwise modified, and other implementations are possible. Furthermore, aspects from two or more methods can be combined.

[0267] The following provides an overview of aspects of this disclosure:

[0268] Aspect 1: A method for wireless communication, comprising: receiving information indicating a plurality of SRS resource sets; receiving an indication of a selected SRS resource set, wherein the selected SRS resource set is included in the plurality of SRS resource sets; receiving an indication of one or more selected SRS resources, wherein each selected SRS resource is included in the selected SRS resource set; and transmitting an uplink transmission at least in part based on the one or more selected SRS resources and via a beam direction associated with the selected SRS resource set.

[0269] Aspect 2: The method according to aspect 1 further includes: receiving information indicating a plurality of downlink reference signaling resources, wherein each of the plurality of SRS resource sets is associated with a corresponding downlink reference signaling resource among the plurality of downlink reference signaling resources.

[0270] Aspect 3: According to the method of aspect 2, the uplink transmission includes: transmitting the uplink transmission via a beam direction corresponding to a corresponding downlink reference signal resource associated with a selected SRS resource set among a plurality of downlink reference signal resources.

[0271] Aspect 4: According to the method of any one of Aspects 2 to 3, each of the multiple downlink reference signal resource sets corresponds to the corresponding beam direction.

[0272] Aspect 5: The method according to any one of aspects 2 to 4 further includes: receiving the corresponding downlink reference signal resource using a spatial transmission filter, wherein transmitting uplink transmission via a beam direction corresponding to the corresponding downlink reference signal resource includes transmitting uplink transmission using a spatial transmission filter.

[0273] Aspect 6: According to the method of any one of Aspects 2 to 5, wherein the multiple downlink reference signal resources include multiple CSI-RS resources.

[0274] Aspect 7: The method according to any one of aspects 1 to 6 further includes: transmitting one or more SRSs through each of a plurality of SRS resource sets, wherein receiving an indication of a selected SRS resource set and an indication of one or more selected SRS resources is based at least in part on transmitting one or more SRSs.

[0275] Aspect 8: The method according to any one of Aspects 1 to 7, wherein receiving an indication of a selected SRS resource set and receiving an indication of one or more selected SRS resources comprises: receiving a DCI message, wherein a first field of the DCI message includes an indication of a selected SRS resource set, and wherein a second field of the DCI message includes an indication of one or more selected SRS resources.

[0276] Aspect 9: The method according to aspect 8 further includes: determining the number of selected SRS resource sets based at least in part on the value of the first field; and ignoring one or more additional fields of the DCI message associated with the selected SRS resources based at least in part on determining the number of selected SRS resource sets.

[0277] Aspect 10: The method according to any one of aspects 1 to 9, wherein receiving an indication of a selected SRS resource set and receiving an indication of one or more selected SRS resources comprises: receiving a DCI message, wherein a first set of bits in a field of the DCI message includes an indication of a selected SRS resource set, and wherein a second set of bits in a field of the DCI message includes an indication of one or more selected SRS resources.

[0278] Aspect 11: According to the method of aspect 10, the first bit set is more important than the second bit set.

[0279] Aspect 12: According to the method of any one of Aspects 1 to 11, each of the plurality of SRS resource sets includes a corresponding number of SRS resources; the number of bits included in the indication of one or more selected SRS resources is at least partially based on the maximum corresponding number of SRS resources.

[0280] Aspect 13: The method according to any one of aspects 1 to 12, wherein receiving an indication of a selected set of SRS resources and receiving an indication of one or more selected SRS resources comprises: receiving a DCI message including an authorization for uplink transmission, wherein the uplink transmission is transmitted at least in part based on the authorization.

[0281] Aspect 14: The method according to any one of aspects 1 to 13, wherein one or more selected SRS resources correspond to one or more corresponding transmission layers; and transmitting uplink transmission based at least in part on one or more selected SRS resources includes transmitting uplink transmission via one or more corresponding transmission layers.

[0282] Aspect 15: The method according to any one of aspects 1 to 14 further includes: receiving an indication of a second selected SRS resource set, wherein the second selected SRS resource set is included in a plurality of SRS resource sets; receiving an indication of one or more second selected SRS resources, wherein each second selected SRS resource is included in the second selected SRS resource set; and transmitting uplink transmission at least in part based on one or more second selected SRS resources and via a second beam direction associated with the second selected SRS resource set.

[0283] Aspect 16: According to the method of aspect 15, the second beam direction corresponds to a second corresponding downlink reference signal resource associated with a second selected set of probe reference signal resources among a plurality of downlink reference signal resources.

[0284] Aspect 17: The method according to aspect 15, wherein within an authorization for uplink transmission, an indication of a selected SRS resource set, an indication of one or more selected SRS resources, an indication of a second selected SRS resource set, and an indication of one or more second selected SRS resources are received; the authorization for uplink transmission schedules multiple opportunities for uplink transmission.

[0285] Aspect 18: According to the method of aspect 17, a first set of one or more timings for uplink transmission is transmitted via a beam direction and at least in part based on one or more selected SRS resources; and a second set of one or more timings for uplink transmission is transmitted via a second beam direction and at least in part based on one or more second selected SRS resources.

[0286] Aspect 19: According to the method of aspect 18, the timing of uplink transmission included in the second set is transmitted after a first timing of uplink transmission included in the first set and before a second timing of uplink transmission included in the first set.

[0287] Aspect 20: According to the method of any one of aspects 18 to 19, wherein one or more selected SRS resources include a first number of reference signal resources, and one or more second selected SRS resources include a second number of reference signal resources less than the first number; and receiving within a DCI message an indication of a set of selected SRS resources, an indication of one or more selected SRS resources, an indication of a second selected SRS resource set, and an indication of one or more second selected SRS resources.

[0288] Aspect 21: The method according to aspect 20 further includes: identifying an indication of an antenna port set within a field of a DCI message; associating the antenna port set with one or more selected SRS resources, wherein uplink transmissions in a first set of timings are transmitted at least in part based on the antenna port set; and associating a subset of the antenna port set with one or more second selected SRS resources, wherein uplink transmissions in a second set of timings are transmitted at least in part based on the subset of the antenna port set.

[0289] Aspect 22: The method according to any one of aspects 15 to 21, wherein uplink transmission is transmitted via the beam direction and via the second beam direction within the same transmission time interval.

[0290] Aspect 18: The method according to any one of aspects 15 to 22, wherein the beam direction is associated with a first transmitting and receiving point or a first panel; and the second beam direction is associated with a second transmitting and receiving point or a second panel.

[0291] Aspect 24: The method according to any one of aspects 15 to 23, wherein an indication of a selected SRS resource set, an indication of one or more selected SRS resources, an indication of a second selected SRS resource set, and an indication of one or more second selected SRS resources are received within a DCI message; a first field of the DCI message indicates the selected SRS resource set and the second selected SRS resource set; a second field of the DCI message indicates one or more selected SRS resources; and a third field of the DCI message indicates one or more second selected SRS resources.

[0292] Aspect 25: According to the method of any one of aspects 15 to 24, wherein an indication of a selected SRS resource set, an indication of one or more selected SRS resources, an indication of a second selected SRS resource set, and an indication of one or more second selected SRS resources are received in a field of the DCI message; a first bit set in the field indicates the selected SRS resource set and the selected second SRS resource set; and a second bit set in the field indicates one or more selected SRS resources and one or more second selected SRS resources.

[0293] Aspect 26: According to the method of aspect 25, the first bit set is more important than the second bit set.

[0294] Aspect 27: According to the method of any one of aspects 24 to 25, one or more selected SRS resources and one or more second selected SRS resources each include the same number of reference signal resources.

[0295] Aspect 28: The method according to any one of aspects 1 to 27, wherein uplink transmission includes PUSCH transmission.

[0296] Aspect 29: A method for wireless communication, comprising: transmitting information indicating a plurality of SRS resource sets; transmitting an indication of a selected SRS resource set, wherein the selected SRS resource set is included in the plurality of SRS resource sets; transmitting an indication of one or more selected SRS resources, wherein each selected SRS resource is included in the selected SRS resource set; and receiving uplink transmission at least in part based on the one or more selected SRS resources and via a beam direction associated with the selected SRS resource set.

[0297] Aspect 30: The method according to aspect 29 further includes: transmitting information indicating a plurality of downlink reference signaling resources, wherein each of the plurality of SRS resource sets is associated with a corresponding downlink reference signaling resource among the plurality of downlink reference signaling resources.

[0298] Aspect 31: According to the method of aspect 30, receiving uplink transmission includes: receiving uplink transmission via a beam direction corresponding to a respective downlink reference signal resource associated with a selected SRS resource set among a plurality of downlink reference signal resources.

[0299] Aspect 32: According to the method of any one of aspects 30 to 31, each of the plurality of downlink reference signal resource sets corresponds to the corresponding beam direction.

[0300] Aspect 33: The method according to any one of aspects 30 to 32 further includes: transmitting the corresponding downlink reference signal resource using a spatial transmission filter, wherein receiving the uplink transmission via a beam direction corresponding to the corresponding downlink reference signal resource includes receiving the uplink transmission using a spatial transmission filter.

[0301] Aspect 34: According to the method of any one of aspects 30 to 33, wherein the plurality of downlink reference signal resources include a plurality of channel state information reference signal resources.

[0302] Aspect 35: The method according to any one of aspects 29 to 34 further includes: receiving one or more SRSs through each of a plurality of SRS resource sets; and determining a selected SRS resource set and one or more selected SRS resources based at least in part on one or more SRSs.

[0303] Aspect 36: The method according to any one of aspects 29 to 35, wherein sending an indication of a selected SRS resource set and sending an indication of one or more selected SRS resources comprises: sending a DCI message, wherein a first field of the DCI message includes an indication of a selected SRS resource set, and wherein a second field of the DCI message includes an indication of one or more selected SRS resources.

[0304] Aspect 37: The method according to aspect 36 further includes: determining the number of selected SRS resource sets; and populating one or more additional fields of the DCI message associated with the selected SRS resources based at least in part on the determined number of selected SRS resource sets.

[0305] Aspect 38: The method according to any one of aspects 29 to 37, wherein sending an indication of a selected SRS resource set and sending an indication of one or more selected SRS resources comprises: sending a DCI message, wherein a first set of bits in a field of the DCI message includes an indication of a selected SRS resource set, and wherein a second set of bits in a field of the DCI message includes an indication of one or more selected SRS resources.

[0306] Aspect 39: According to the method of aspect 38, the first bit set is more important than the second bit set.

[0307] Aspect 40: According to the method of any one of Aspects 29 to 39, each of the plurality of SRS resource sets includes a corresponding number of SRS resources; the number of bits included in the indication of one or more selected SRS resources is at least partially based on the maximum corresponding number of SRS resources.

[0308] Aspect 41: The method according to any one of aspects 29 to 40, wherein sending an indication of a selected set of SRS resources and an indication of sending one or more selected SRS resources comprises: sending a DCI message including an authorization for uplink transmission, wherein the uplink transmission is sent at least in part based on the authorization.

[0309] Aspect 42: The method according to any one of aspects 29 to 41, wherein one or more selected SRS resources correspond to one or more corresponding transmission layers; and receiving uplink transmissions at least in part based on one or more selected SRS resources includes receiving uplink transmissions via one or more corresponding transmission layers.

[0310] Aspect 43: The method according to any one of aspects 29 to 42 further includes: transmitting an indication of a second selected SRS resource set, wherein the second selected SRS resource set is included in a plurality of SRS resource sets; transmitting an indication of one or more second selected SRS resources, wherein each second selected SRS resource is included in a second selected SRS resource set; and receiving uplink transmission at least in part based on one or more second selected SRS resources and via a second beam direction associated with the second selected SRS resource set.

[0311] Aspect 44: According to the method of aspect 43, the second beam direction corresponds to a second corresponding downlink reference signal resource associated with a second selected set of probe reference signal resources among a plurality of downlink reference signal resources.

[0312] Aspect 45: According to the method of aspect 43, wherein within the grant for uplink transmission, an indication of a selected SRS resource set, an indication of one or more selected SRS resources, an indication of a second selected SRS resource set, and an indication of one or more second selected SRS resources are transmitted; the grant for uplink transmission schedules multiple timings of uplink transmission.

[0313] Aspect 46: According to the method of aspect 45, a first set of one or more opportunities for receiving uplink transmissions via a beam direction and at least in part based on one or more selected SRS resources; and a second set of one or more opportunities for receiving uplink transmissions via a second beam direction and at least in part based on one or more second selected SRS resources.

[0314] Aspect 47: According to the method of aspect 46, the timing of uplink transmission included in the second set is received after a first timing of uplink transmission included in the first set and before a second timing of uplink transmission included in the first set.

[0315] Aspect 48: According to the method of any one of aspects 46 to 47, one or more selected SRS resources include a first number of reference signal resources, and one or more second selected SRS resources include a second number of reference signal resources less than the first number; and receiving within a DCI message an indication of a set of selected SRS resources, an indication of one or more selected SRS resources, an indication of a second selected SRS resource set, and an indication of one or more second selected SRS resources.

[0316] Aspect 49: The method according to aspect 48 further includes: including an indication of an antenna port set in a field of the DCI message, wherein uplink transmissions in a first set at one or more times are at least partially based on the antenna port set, and wherein uplink transmissions in a second set at one or more times are at least partially based on a subset of the antenna port set.

[0317] Aspect 50: The method according to any one of aspects 44 to 49, wherein uplink transmissions are received via a beam direction and via a second beam direction within the same transmission time interval.

[0318] Aspect 51: The method according to any one of aspects 44 to 49, wherein the beam direction is associated with a first transmitting and receiving point or a first panel; and the second beam direction is associated with a second transmitting and receiving point or a second panel.

[0319] Aspect 52: According to the method of any one of aspects 44 to 51, wherein an indication of a selected SRS resource set, an indication of one or more selected SRS resources, an indication of a second selected SRS resource set, and an indication of one or more second selected SRS resources are sent within a DCI message; a first field of the DCI message indicates the selected SRS resource set and the second selected SRS resource set; a second field of the DCI message indicates one or more selected SRS resources; and a third field of the DCI message indicates one or more second selected SRS resources.

[0320] Aspect 53: According to the method of any one of aspects 44 to 51, wherein an indication of a selected SRS resource set, an indication of one or more selected SRS resources, an indication of a second selected SRS resource set, and an indication of one or more second selected SRS resources are transmitted in a field of the DCI message; a first bit set in the field indicates the selected SRS resource set and the selected second SRS resource set; and a second bit set in the field indicates one or more selected SRS resources and one or more second selected SRS resources.

[0321] Aspect 54: According to the method of aspect 53, the first bit set is more important than the second bit set.

[0322] Aspect 55: According to the method of any one of aspects 53 to 54, one or more selected SRS resources and one or more second selected SRS resources each include the same number of reference signal resources.

[0323] Aspect 56: The method of any one of Aspects 29 to 55, wherein uplink transmission includes PUSCH transmission.

[0324] Aspect 57: An apparatus for wireless communication, comprising at least one processor; a memory coupled to the at least one processor; and instructions stored in the memory and executable by the at least one processor to cause the apparatus to perform any of the methods of aspects 1 to 28.

[0325] Aspect 58: An apparatus for wireless communication, comprising at least one component for performing the method of any one of aspects 1 to 28.

[0326] Aspect 59: A non-transitory computer-readable medium storing code for wireless communication, the code including instructions executable by at least one processor to perform methods of any of the examples in Aspects 1 to 28.

[0327] Aspect 60: An apparatus for wireless communication, comprising at least one processor; a memory coupled to the at least one processor; and instructions stored in the memory and executable by the at least one processor to cause the apparatus to perform any of the methods of aspects 29 to 56.

[0328] Aspect 61: An apparatus for wireless communication, comprising at least one component for performing the method of any one of aspects 29 to 56.

[0329] Aspect 62: A non-transitory computer-readable medium storing code for wireless communication, the code including instructions executable by at least one processor to perform methods of any of the examples in aspects 29 to 56.

[0330] While aspects of LTE, LTE-A, LTE-A Pro, or NR systems may be described for illustrative purposes, and the terms LTE, LTE-A, LTE-A Pro, or NR may be used in most of the description, the techniques described herein are applicable to networks other than LTE, LTE-A, LTE-A Pro, or NR networks. For example, the described techniques are applicable to a variety of other wireless communication systems such as Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash-OFDM, and other systems and radio technologies not explicitly mentioned herein.

[0331] The information and signals described herein can be represented using any of a variety of different technologies and techniques. For example, data, instructions, commands, information, signals, bits, cycles, and chips that may be referenced throughout this specification can be represented by voltage, current, electromagnetic waves, magnetic fields or particles, light fields or particles, or any combination thereof.

[0332] The various illustrative blocks and components described herein can be implemented or executed using a general-purpose processor, DSP, ASIC, CPU, 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. The processor can also be implemented as a combination of computing devices, such as a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors combined with a DSP core, or any other such configuration.

[0333] The functionality described herein can be implemented in hardware, software executed by a processor, or any combination thereof. Software should be interpreted broadly as instructions, instruction sets, code, code segments, program code, programs, subroutines, software modules, applications, software applications, software packages, routines, subroutines, objects, executable files, threads of execution, procedures, or functions, whether or not referred to as software, firmware, middleware, microcode, hardware description languages, or others. If implemented as software executed by a processor, the functionality can be stored or transmitted as one or more instructions or code on a computer-readable medium. Other examples and implementations are within the scope of this disclosure and the appended claims. For example, due to the nature of software, the functionality described herein can be implemented using software executed by a processor, hardware, hardwiring, or any combination thereof. Features implementing the functionality can also be physically located in various locations, including being distributed such that portions of the functionality are implemented at different physical locations.

[0334] Computer-readable media includes both non-transitory computer storage media and communication media, which include any media that facilitates the transfer of a computer program from one place to another. Non-transitory storage media can be any available medium accessible by a general-purpose or special-purpose computer. By way of example, and not limitation, non-transitory computer-readable media may include RAM, ROM, electrically erasable programmable ROM (EEPROM), flash memory, optical disc (CD) ROM or other optical disc storage, disk storage or other magnetic storage devices, or any other non-transitory medium that can be used to carry or store the required program code in the form of instructions or data structures and is accessible by a general-purpose or special-purpose computer, or a general-purpose or special-purpose processor. Furthermore, any connection is appropriately referred to as computer-readable media. For example, if software is transmitted from a website, server, or other remote source using coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technology (such as infrared, radio, and microwave), then coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technology (such as infrared, radio, and microwave) is included in the definition of computer-readable media. The disks and optical discs used in this article include CDs, laser discs, optical discs, digital multifunction discs (DVDs), floppy disks, and Blu-ray discs, where disks typically reproduce data magnetically, while optical discs reproduce data optically using lasers. Combinations of these are also included within the scope of computer-readable media.

[0335] As used herein, including in the claims, and as in a list of items (e.g., a list of items beginning with a phrase such as "at least one" or "one or more"), "or" 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). Furthermore, as used herein, the phrase "based on" should not be construed as a reference to a closed set of conditions. For example, an example step described as "based on condition A" may be based on both condition A and condition B without departing from the scope of this disclosure. In other words, as used herein, the phrase "based on" should be interpreted in the same manner as the phrase "at least partially based on". As used herein, the term "and / or," when used in a list of two or more items, means that any one of the listed items may be used alone, or any combination of two or more of the listed items may be used. For example, if a composition is described as comprising components A, B, and / or C, the composition may comprise A alone; B alone; C alone; a combination of A and B; a combination of B and C; or a combination of A, B, and C.

[0336] In the accompanying drawings, similar components or features may have the same reference label. Furthermore, various components of the same type can be distinguished by adding a dash after the reference label and a second label to differentiate between similar components. If only the first reference label is used in the specification, the description applies to any similar component having the same first reference label, regardless of the second or other subsequent reference labels.

[0337] The descriptions herein, illustrated in conjunction with the accompanying drawings, depict exemplary configurations and do not represent all examples that may be implemented or that fall within the scope of the claims. The term "example" as used herein means "serving as an example, instance, or illustration," and not "preferred" or "superior to 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 concept of the described examples.

[0338] The description provided herein enables those skilled in the art to make or use this disclosure. Various modifications to this disclosure will be apparent to those skilled in the art, and the general principles defined herein can be applied to other variations without departing from the scope of this disclosure. Therefore, this disclosure is not limited to the examples and designs described herein, but is consistent with the broadest scope of the principles and novel features disclosed herein.

Claims

1. A method for wireless communication, comprising: Receive information indicating multiple sets of probe reference signal resources; Receive an indication of a selected set of probe reference signal resources, wherein the selected set of probe reference signal resources is included in the plurality of probe reference signal resource sets; Receive an instruction for one or more selected probe reference signal resources, wherein each selected probe reference signal resource is included in the set of selected probe reference signal resources; as well as Uplink transmission is at least partially based on one or more selected probe reference signal resources and transmitted via a beam direction corresponding to a downlink reference signal resource associated with the selected probe reference signal resource set.

2. The method according to claim 1, further comprising: Receive information indicating a plurality of downlink reference signal resources, wherein each of the plurality of probe reference signal resource sets is associated with a corresponding downlink reference signal resource among the plurality of downlink reference signal resources.

3. The method of claim 2, wherein the beam direction corresponds to a corresponding downlink reference signal resource associated with the selected set of probe reference signal resources among the plurality of downlink reference signal resources.

4. The method of claim 2, wherein each of the plurality of downlink reference signal resources corresponds to a corresponding beam direction.

5. The method according to claim 2, further comprising: Receiving the corresponding downlink reference signal resource using a spatial transmission filter, wherein transmitting the uplink transmission via the beam direction corresponding to the corresponding downlink reference signal resource includes transmitting the uplink transmission using the spatial transmission filter.

6. The method according to claim 2, wherein the plurality of downlink reference signal resources includes a plurality of channel state information reference signal resources.

7. The method according to claim 1, further comprising: One or more probe reference signals are transmitted through each of the plurality of probe reference signal resource sets, wherein the indication of the selected probe reference signal resource set and the indication of the one or more selected probe reference signal resources are received at least in part based on the transmission of the one or more probe reference signals.

8. The method of claim 1, wherein receiving the indication of the selected set of probe reference signal resources and receiving the indication of the one or more selected probe reference signal resources comprises: Receive a downlink control information message, wherein a first field of the downlink control information message includes an indication of the selected set of probe reference signal resources, and wherein a second field of the downlink control information message includes an indication of the one or more selected probe reference signal resources.

9. The method according to claim 8, further comprising: The number of selected probe reference signal resource sets is determined at least in part based on the value of the first field; as well as One or more additional fields in the downlink control information message associated with the selected probe reference signal resources are ignored, at least in part, based on the determination of the number of selected probe reference signal resources.

10. The method of claim 1, wherein receiving the indication of the selected set of probe reference signal resources and receiving the indication of the one or more selected probe reference signal resources comprises: A downlink control information message is received, wherein a first set of bits in a field of the downlink control information message includes an indication of the selected set of probe reference signal resources, and wherein a second set of bits in a field of the downlink control information message includes an indication of the one or more selected probe reference signal resources.

11. The method of claim 10, wherein the first bit set is more important than the second bit set.

12. The method according to claim 1, wherein: Each of the plurality of detection reference signal resource sets includes a corresponding number of detection reference signal resources; and The number of bits included in the indication of the one or more selected probe reference signal resources is at least partially based on the maximum corresponding number of probe reference signal resources.

13. The method of claim 1, wherein receiving the indication of the selected set of probe reference signal resources and receiving the indication of the one or more selected probe reference signal resources comprises: Receive a downlink control information message, the downlink control information message including an authorization for the uplink transmission, wherein the uplink transmission is transmitted at least in part based on the authorization.

14. The method according to claim 1, wherein: The one or more selected probe reference signal resources correspond to one or more corresponding transmission layers; and Transmitting the uplink transmission based at least in part on the one or more selected probe reference signal resources includes transmitting the uplink transmission via the one or more corresponding transmission layers.

15. The method according to claim 2, further comprising: Receive an instruction for a second selected set of probe reference signals, wherein the second selected set of probe reference signals is included in the plurality of probe reference signals resource sets; Receive an instruction for one or more second-selected probe reference signal resources, wherein each second-selected probe reference signal resource is included in the set of second-selected probe reference signal resources; as well as The uplink transmission is at least partially based on one or more of the second selected probe reference signal resources and transmitted via a second beam direction associated with the second selected probe reference signal resource set.

16. The method of claim 15, wherein the second beam direction corresponds to a second corresponding downlink reference signal resource among the plurality of downlink reference signal resources associated with the second selected set of probe reference signal resources.

17. The method of claim 15, wherein: Within the authorization for the uplink transmission, receive the indication of the selected set of probe reference signals resources, the indication of the one or more selected probe reference signals resources, the indication of the second selected set of probe reference signals resources, and the indication of the one or more second selected probe reference signals resources; as well as The authorization scheduler for the uplink transmission schedules multiple times for the uplink transmission.

18. The method of claim 17, wherein: A first set of one or more timings for transmitting the uplink transmission via the beam direction and at least in part based on the one or more selected probe reference signal resources; as well as A second set of one or more timings for transmitting the uplink via the second beam direction and at least in part based on the one or more second-selected probe reference signal resources.

19. The method of claim 18, wherein the timing of the uplink transmission included in the second set is transmitted after a first timing of the uplink transmission included in the first set and before a second timing of the uplink transmission included in the first set.

20. The method of claim 18, wherein: The one or more selected detection reference signal resources include a first number of reference signal resources, and the one or more second selected detection reference signal resources include a second number of reference signal resources that is less than the first number; as well as The downlink control information message receives the indication of the selected set of sounding reference signals resources, the indication of the one or more selected sounding reference signals resources, the indication of the second selected set of sounding reference signals resources, and the indication of the one or more second selected sounding reference signals resources.

21. The method of claim 20, further comprising: An indication of the antenna port set is identified within the fields of the downlink control information message; The antenna port set is associated with one or more selected probe reference signal resources, wherein the uplink transmissions in the first set at one or more times are transmitted based at least in part on the antenna port set; as well as A subset of the antenna port set is associated with one or more second-selected probe reference signal resources, wherein the uplink transmissions in the second set of one or more timings are transmitted based at least in part on the subset of the antenna port set.

22. The method of claim 15, wherein the uplink transmission is transmitted via the beam direction and via the second beam direction within the same transmission time interval.

23. The method according to claim 15, wherein: The beam direction is associated with a first transmitting and receiving point or a first panel; and The second beam direction is associated with the second transmitting and receiving point or the second panel.

24. The method of claim 15, wherein: Within a downlink control information message, receive the indication of the selected detection reference signal resource set, the indication of the one or more selected detection reference signal resources, the indication of the second selected detection reference signal resource set, and the indication of the one or more second selected detection reference signal resources; The first field of the downlink control information message indicates the selected set of sounding reference signals and the second selected set of sounding reference signals; The second field of the downlink control information message indicates the one or more selected probe reference signal resources; as well as The third field of the downlink control information message indicates one or more of the second selected probe reference signal resources.

25. The method of claim 15, wherein: The indication of the selected sounding reference signal resource set, the indication of the one or more selected sounding reference signal resources, the indication of the second selected sounding reference signal resource set, and the indication of the one or more second selected sounding reference signal resources are received within the fields of the downlink control information message. The first bit set within the field indicates the selected set of probe reference signal resources and the second selected set of probe reference signal resources; as well as The second bit set within the field indicates the one or more selected probe reference signal resources and the one or more second selected probe reference signal resources.

26. The method of claim 25, wherein the first bit set is more important than the second bit set.

27. The method of claim 25, wherein the one or more selected probe reference signal resources and the one or more second selected probe reference signal resources each comprise the same number of reference signal resources.

28. The method of claim 1, wherein the uplink transmission includes physical uplink shared channel transmission.

29. A method for wireless communication, comprising: Send information indicating multiple sets of probe reference signal resources; Send an indication of a selected set of probe reference signal resources, wherein the selected set of probe reference signal resources is included in the plurality of probe reference signal resource sets; Send an instruction for one or more selected probe reference signal resources, wherein each selected probe reference signal resource is included in the selected probe reference signal resource set; as well as Uplink transmissions are received at least in part based on one or more selected probe reference signal resources and via beam directions corresponding to downlink reference signal resources associated with the selected probe reference signal resource set.

30. The method of claim 29, further comprising: Information indicating multiple downlink reference signal resources is transmitted, wherein each of the multiple sets of probe reference signal resources is associated with a corresponding downlink reference signal resource among the multiple downlink reference signal resources.

31. The method of claim 30, wherein the beam direction corresponds to a corresponding downlink reference signal resource among the plurality of downlink reference signal resources associated with the selected set of probe reference signal resources.

32. The method of claim 30, wherein each of the plurality of downlink reference signal resources corresponds to a corresponding beam direction.

33. The method of claim 30, further comprising: Transmitting the corresponding downlink reference signal resource using a spatial transmission filter, wherein receiving the uplink transmission via the beam direction corresponding to the corresponding downlink reference signal resource includes receiving the uplink transmission using the spatial transmission filter.

34. The method of claim 30, wherein the plurality of downlink reference signal resources includes a plurality of channel state information reference signal resources.

35. The method of claim 29, further comprising: One or more probe reference signals are received through each of the plurality of probe reference signal resource sets; as well as The selected set of probe reference signal resources and the selected probe reference signal resources are determined at least in part based on the one or more probe reference signals.

36. The method of claim 29, wherein sending the indication of the selected set of probe reference signal resources and sending the indication of the one or more selected probe reference signal resources comprises: Send a downlink control information message, wherein a first field of the downlink control information message includes an indication of the selected set of probe reference signal resources, and wherein a second field of the downlink control information message includes an indication of the one or more selected probe reference signal resources.

37. The method of claim 36, further comprising: Determine the number of reference signal resources to be selected; as well as One or more additional fields in the downlink control information message associated with the selected probe reference signal resources are populated, at least in part, based on the number of selected probe reference signal resources.

38. The method of claim 29, wherein sending the indication of the selected set of probe reference signal resources and sending the indication of the one or more selected probe reference signal resources comprises: Send a downlink control information message, wherein a first set of bits in a field of the downlink control information message includes an indication of the selected set of probe reference signal resources, and wherein a second set of bits in a field of the downlink control information message includes an indication of the one or more selected probe reference signal resources.

39. The method of claim 38, wherein the first bit set is more important than the second bit set.

40. The method of claim 29, wherein: Each of the plurality of detection reference signal resource sets includes a corresponding number of detection reference signal resources; and The number of bits included in the indication of the one or more selected probe reference signal resources is at least partially based on the maximum corresponding number of probe reference signal resources.

41. The method of claim 29, wherein sending the indication of the selected set of probe reference signal resources and sending the indication of the one or more selected probe reference signal resources comprises: Send a downlink control information message, the downlink control information message including an authorization for the uplink transmission, wherein the uplink transmission is sent at least in part based on the authorization.

42. The method according to claim 29, wherein: The one or more selected probe reference signal resources correspond to one or more corresponding transmission layers; as well as Receiving the uplink transmission at least in part based on the one or more selected probe reference signal resources includes receiving the uplink transmission via the one or more corresponding transmission layers.

43. The method of claim 30, further comprising: Sending an indication of a second selected set of probe reference signals resources, wherein the second selected set of probe reference signals resources is included in the plurality of probe reference signals resource sets; Sending an instruction for one or more second-selected probe reference signal resources, wherein each second-selected probe reference signal resource is included in the set of second-selected probe reference signal resources; as well as The uplink transmission is received at least in part based on one or more of the second selected probe reference signal resources and via a second beam direction associated with the second selected probe reference signal resource set.

44. The method of claim 43, wherein the second beam direction corresponds to a second corresponding downlink reference signal resource among the plurality of downlink reference signal resources associated with the second selected set of probe reference signal resources.

45. The method according to claim 43, wherein: Within the authorization for the uplink transmission, the indication of the selected set of probe reference signal resources, the indication of the one or more selected probe reference signal resources, the indication of the second selected set of probe reference signal resources, and the indication of the one or more second selected probe reference signal resources are transmitted; as well as The authorization scheduler for the uplink transmission schedules multiple times for the uplink transmission.

46. ​​The method of claim 45, wherein: A first set of one or more opportunities to receive the uplink transmission via the beam direction and at least in part based on the one or more selected probe reference signal resources; as well as A second set of one or more timings for receiving the uplink transmission via the second beam direction and at least in part based on the one or more second-selected probe reference signal resources.

47. The method of claim 46, wherein the timing of the uplink transmission included in the second set is received after a first timing of the uplink transmission included in the first set and before a second timing of the uplink transmission included in the first set.

48. The method of claim 46, wherein: The one or more selected detection reference signal resources include a first number of reference signal resources, and the one or more second selected detection reference signal resources include a second number of reference signal resources that is less than the first number; as well as The downlink control information message receives the indication of the selected set of sounding reference signals resources, the indication of the one or more selected sounding reference signals resources, the indication of the second selected set of sounding reference signals resources, and the indication of the one or more second selected sounding reference signals resources.

49. The method of claim 48, further comprising: The downlink control information message includes an indication of an antenna port set within its fields, wherein uplink transmissions in the first set at one or more times are at least partially based on the antenna port set, and wherein uplink transmissions in the second set at one or more times are at least partially based on a subset of the antenna port set.

50. The method of claim 43, wherein the uplink transmission is received via the beam direction and via the second beam direction within the same transmission time interval.

51. The method according to claim 43, wherein: The beam direction is associated with a first transmitting and receiving point or a first panel; and The second beam direction is associated with the second transmitting and receiving point or the second panel.

52. The method according to claim 43, wherein: The indication of the selected detection reference signal resource set, the indication of the one or more selected detection reference signal resources, the indication of the second selected detection reference signal resource set, and the indication of the one or more second selected detection reference signal resources are sent within the downlink control information message. The first field of the downlink control information message indicates the selected set of sounding reference signals and the second selected set of sounding reference signals; The second field of the downlink control information message indicates the one or more selected probe reference signal resources; as well as The third field of the downlink control information message indicates one or more of the second selected probe reference signal resources.

53. The method according to claim 43, wherein: The indication of the selected probe reference signal resource set, the indication of the one or more selected probe reference signal resources, the indication of the second selected probe reference signal resource set, and the indication of the one or more second selected probe reference signal resources are sent within the fields of the downlink control information message. The first bit set within the field indicates the selected set of probe reference signal resources and the second selected set of probe reference signal resources; as well as The second bit set within the field indicates the one or more selected probe reference signal resources and the one or more second selected probe reference signal resources.

54. The method of claim 53, wherein the first bit set is more important than the second bit set.

55. The method of claim 53, wherein the one or more selected probe reference signal resources and the one or more second selected probe reference signal resources each comprise the same number of reference signal resources.

56. The method of claim 29, wherein the uplink transmission includes physical uplink shared channel transmission.

57. An apparatus for wireless communication, comprising: At least one processor, A memory coupled to the at least one processor; as well as Instructions, which are stored in the memory and can be executed by the at least one processor, to cause the device to: Receive information indicating multiple sets of probe reference signal resources; Receive an indication of a selected set of probe reference signal resources, wherein the selected set of probe reference signal resources is included in the plurality of probe reference signal resource sets; Receive an instruction for one or more selected probe reference signal resources, wherein each selected probe reference signal resource is included in the set of selected probe reference signal resources; as well as Uplink transmission is at least partially based on one or more selected probe reference signal resources and transmitted via a beam direction corresponding to a downlink reference signal resource associated with the selected probe reference signal resource set.

58. The apparatus according to claim 57, wherein, The instructions can also be executed by the at least one processor to cause the device to: Receive information indicating a plurality of downlink reference signal resources, wherein each of the plurality of probe reference signal resource sets is associated with a corresponding downlink reference signal resource among the plurality of downlink reference signal resources.

59. The apparatus of claim 58, wherein the beam direction corresponds to a corresponding downlink reference signal resource among the plurality of downlink reference signal resources associated with the selected set of probe reference signal resources.

60. The apparatus of claim 58, wherein each of the plurality of downlink reference signal resources corresponds to a corresponding beam direction.

61. The apparatus of claim 58, wherein the plurality of downlink reference signal resources includes a plurality of channel state information reference signal resources.

62. The apparatus according to claim 57, wherein, The instructions can also be executed by the at least one processor to cause the device to: One or more probe reference signals are transmitted through each of the plurality of probe reference signal resource sets, wherein the indication of the selected probe reference signal resource set and the indication of the one or more selected probe reference signal resources are received at least in part based on the transmission of the one or more probe reference signals.

63. The apparatus according to claim 57, wherein, In order to receive the indication of the selected set of probe reference signal resources and to receive the indication of the one or more selected probe reference signal resources, the instructions may be executed by the at least one processor to cause the apparatus to: Receive a downlink control information message, the downlink control information message including an authorization for the uplink transmission, wherein the uplink transmission is transmitted at least in part based on the authorization.

64. The apparatus according to claim 57, wherein: The one or more selected probe reference signal resources correspond to one or more corresponding transmission layers; as well as In order to transmit the uplink transmission based at least in part on the one or more selected probe reference signal resources, the instructions may be executed by the at least one processor to cause the device to transmit the uplink transmission via the one or more corresponding transmission layers.

65. The apparatus according to claim 58, wherein, The instructions can also be executed by the at least one processor to cause the device to: Receive an instruction for a second selected set of probe reference signals, wherein the second selected set of probe reference signals is included in the plurality of probe reference signals resource sets; Receive an instruction for one or more second-selected probe reference signal resources, wherein each second-selected probe reference signal resource is included in the set of second-selected probe reference signal resources; as well as The uplink transmission is at least partially based on one or more of the second selected probe reference signal resources and transmitted via a second beam direction associated with the second selected probe reference signal resource set.

66. The apparatus of claim 65, wherein the second beam direction corresponds to a second corresponding downlink reference signal resource associated with the second selected set of probe reference signal resources among the plurality of downlink reference signal resources.

67. The apparatus according to claim 65, wherein, The instructions can also be executed by the at least one processor to cause the device to: Within the authorization for the uplink transmission, receive the indication of the selected set of probe reference signals resources, the indication of the one or more selected probe reference signals resources, the indication of the second selected set of probe reference signals resources, and the indication of the one or more second selected probe reference signals resources; as well as The authorization scheduler for the uplink transmission schedules multiple times for the uplink transmission.

68. The apparatus according to claim 67, wherein, The instructions can also be executed by the at least one processor to cause the device to: A first set of one or more timings for transmitting the uplink transmission via the beam direction and at least in part based on the one or more selected probe reference signal resources; as well as A second set of one or more timings for transmitting the uplink via the second beam direction and at least in part based on the one or more second-selected probe reference signal resources.

69. The apparatus according to claim 68, wherein, The instructions can also be executed by the at least one processor to cause the device to: The timing of transmitting the uplink transmission included in the second set is after a first timing of the uplink transmission included in the first set and before a second timing of the uplink transmission included in the first set.

70. The apparatus of claim 65, wherein: The beam direction is associated with a first transmitting and receiving point or a first panel; and The second beam direction is associated with the second transmitting and receiving point or the second panel.

71. An apparatus for wireless communication, comprising: At least one processor, A memory coupled to the at least one processor; as well as Instructions, which are stored in the memory and can be executed by the at least one processor, to cause the device to: Send information indicating multiple sets of probe reference signal resources; Send an indication of a selected set of probe reference signal resources, wherein the selected set of probe reference signal resources is included in the plurality of probe reference signal resource sets; Send an instruction for one or more selected probe reference signal resources, wherein each selected probe reference signal resource is included in the selected probe reference signal resource set; as well as Uplink transmissions are received at least in part based on one or more selected probe reference signal resources and via beam directions corresponding to downlink reference signal resources associated with the selected probe reference signal resource set.

72. The apparatus according to claim 71, wherein, The instructions can also be executed by the at least one processor to cause the device to: Information indicating multiple downlink reference signal resources is transmitted, wherein each of the multiple sets of probe reference signal resources is associated with a corresponding downlink reference signal resource among the multiple downlink reference signal resources.

73. The apparatus of claim 72, wherein the beam direction corresponds to a corresponding downlink reference signal resource associated with the selected set of probe reference signal resources among the plurality of downlink reference signal resources.

74. The apparatus according to claim 71, wherein, The instructions can also be executed by the at least one processor to cause the device to: One or more probe reference signals are received through each of the plurality of probe reference signal resource sets; as well as The selected set of probe reference signal resources and the selected probe reference signal resources are determined at least in part based on the one or more probe reference signals.

75. The apparatus according to claim 71, wherein: The one or more selected probe reference signal resources correspond to one or more corresponding transmission layers; as well as In order to receive the uplink transmission based at least in part on the one or more selected probe reference signal resources, the instruction may be executed by the at least one processor to cause the device to receive the uplink transmission via the one or more corresponding transmission layers.

76. The apparatus according to claim 71, wherein, The instructions can also be executed by the at least one processor to cause the device to: Sending an indication of a second selected set of probe reference signals resources, wherein the second selected set of probe reference signals resources is included in the plurality of probe reference signals resource sets; Sending an instruction for one or more second-selected probe reference signal resources, wherein each second-selected probe reference signal resource is included in the set of second-selected probe reference signal resources; as well as The uplink transmission is received at least in part based on one or more of the second selected probe reference signal resources and via a second beam direction associated with the second selected probe reference signal resource set.

77. The apparatus according to claim 76, wherein, The instructions can also be executed by the at least one processor to cause the device to: Within the authorization for the uplink transmission, the indication of the selected set of probe reference signal resources, the indication of the one or more selected probe reference signal resources, the indication of the second selected set of probe reference signal resources, and the indication of the one or more second selected probe reference signal resources are transmitted; as well as The authorization scheduler for the uplink transmission schedules multiple times for the uplink transmission.

78. The apparatus according to claim 76, wherein: The beam direction is associated with a first transmitting and receiving point or a first panel; and The second beam direction is associated with the second transmitting and receiving point or the second panel.

79. An apparatus for wireless communication, comprising: A component used to receive information indicating multiple sets of probe reference signal resources; A component for receiving an indication of a selected set of probe reference signals resources, wherein the selected set of probe reference signals resources is included in the plurality of probe reference signals resource sets; A component for receiving an indication of one or more selected probe reference signal resources, wherein each selected probe reference signal resource is included in the set of selected probe reference signal resources; as well as A component for transmitting uplink data based at least in part on one or more selected probe reference signal resources and via a beam direction corresponding to a downlink reference signal resource associated with the selected probe reference signal resource set.

80. An apparatus for wireless communication, comprising: A component used to transmit information indicating multiple sets of probe reference signal resources; A component for transmitting an indication of a selected set of probe reference signal resources, wherein the selected set of probe reference signal resources is included in the plurality of probe reference signal resource sets; A component for transmitting an indication of one or more selected probe reference signal resources, wherein each selected probe reference signal resource is included in the set of selected probe reference signal resources; as well as A component for receiving uplink transmissions based at least in part on one or more selected probe reference signal resources and via a beam direction corresponding to a downlink reference signal resource associated with the selected probe reference signal resource set.

81. A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by a processor to: Receive information indicating multiple sets of probe reference signal resources; Receive an indication of a selected set of probe reference signal resources, wherein the selected set of probe reference signal resources is included in the plurality of probe reference signal resource sets; Receive an instruction for one or more selected probe reference signal resources, wherein each selected probe reference signal resource is included in the set of selected probe reference signal resources; as well as Uplink transmission is at least partially based on one or more selected probe reference signal resources and transmitted via a beam direction corresponding to a downlink reference signal resource associated with the selected probe reference signal resource set.

82. A non-transitory computer-readable medium storing code for wireless communication, the code including instructions executable by a processor to: Send information indicating multiple sets of probe reference signal resources; Send an indication of a selected set of probe reference signal resources, wherein the selected set of probe reference signal resources is included in the plurality of probe reference signal resource sets; Send an instruction for one or more selected probe reference signal resources, wherein each selected probe reference signal resource is included in the selected probe reference signal resource set; as well as Uplink transmissions are received at least in part based on one or more selected probe reference signal resources and via beam directions corresponding to downlink reference signal resources associated with the selected probe reference signal resource set.

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