Sounding Reference Signal (SRS) Resource Indicator (SRI) Association for Configuration Grant (CG) Based Transmit and Receive Point (TRP) Physical Uplink Shared Channel (PUSCH) Transmission

Abstract

Methods, systems, and devices are described for sounding reference signal (SRS) resource indicator (SRI) association for configuration grant (CG)-based transmit and receive point (TRP) physical uplink shared channel (PUSCH) transmissions. In some examples, a user equipment (UE) may receive a first control signaling indicating first and second sounding reference signal (SRS) resource sets associated with first and second sets of power control parameters, respectively. The UE may receive a second control signaling indicating a CG configuration and first and second power control parameters for transmissions in the CG configuration. In some examples, the UE may determine a configuration state for one or more fields in the first control signaling, the second control signaling, or both. The UE may select an SRS resource set based on the configuration state and may transmit one or more CG uplink transmissions with the CG configuration using the selected SRS resource set.

Description

[Technical field]

[0001]

[0001] This patent application claims priority to U.S. patent application Ser. No. 17 / 393,192 by Chen et al., entitled "SOUNDING REFERENCE SIGNAL (SRS) RESOURCE INDICATOR (SRI) ASSOCIATION FOR CONFIGURED GRANT (CG) BASED TRANSMISSION AND RECEPTION POINT (TRP) PHYSICAL UPLINK SHARED CHANNEL (PUSCH) TRANSMISSION," filed on August 3, 2021, which is assigned to the assignee of this application and expressly incorporated by reference herein. [Background technology]

[0002]

[0002] Wireless communication systems have been widely deployed to provide various types of communication content, such as voice, video, packet data, messaging, broadcasts, and the like. These systems may be capable of supporting communication with multiple users by sharing available system resources (e.g., time, frequency, and power). Examples of such multiple access systems include fourth generation (4G) systems, such as Long Term Evolution (LTE), LTE Advanced (LTE-A), or LTE-A Pro systems, and fifth generation (5G) systems, sometimes referred to as New Radio (NR) systems. These systems may employ technologies such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal FDMA (OFDMA), or Discrete Fourier Transform Spread Orthogonal Frequency Division Multiplexing (DFT-S-OFDM). A wireless multiple access communication system may include one or more base stations or one or more network access nodes, each simultaneously supporting communication for multiple communication devices, sometimes known as user equipment (UE).

[0003]

[0003] In some cases, a base station may configure a UE with a CG configuration for CG uplink transmission. If the CG configuration is of a type such as a type 1 configuration grant, the base station may transmit the CG configuration as radio resource control (RRC) signaling, which may both configure and activate the CG uplink transmission. Since there may be no related downlink control information (DCI) signaling for some CG signaling, instead, sounding reference signal (SRS) resource indicator (SRI) information, precoding information, and the amount of layers may be given by RRC-based parameters in the RRC signaling. In some cases, a UE may receive such RRC-based parameters in the RRC signaling, but may not be configured to interpret the SRI, precoding information, or the amount of layers efficiently or effectively. For example, a UE may be configured with more than one SRS resource set, and thus, the UE may have difficulty determining which SRS resource set to use when interpreting the SRI, precoding information, and the amount of layers, among other information. In some cases, the base station may configure the UE with multiple sets of RRC-based parameters, e.g., multiple parameters related to multiple SRI fields, multiple precoding information fields, and multiple amounts of layers. In such cases, the complexity for determining the association between the SRS resource set and the RRC-based parameters may increase compared to the case with a single SRS resource set. Furthermore, when configured with more than one SRS resource set, the UE may have difficulty determining the mapping between the SRS resource set and uplink transmission. Summary of the Invention

[0004]

[0004] The systems, methods, and devices disclosed herein each have several inventive aspects, no single aspect of which may be solely responsible for the desirable attributes disclosed herein.

[0005]

[0005] One inventive aspect of the subject matter described in this disclosure may be implemented in a method for wireless communication. The method includes receiving first control signaling indicating a first sounding reference signal (SRS) resource set associated with a first set of power control parameters and a second SRS resource set associated with a second set of power control parameters; receiving second control signaling indicating a configured grant (CG) configuration; the first set of power control parameters and the second set of power control parameters are for uplink transmissions; determining a configuration status of each of one or more fields in radio resource control (RRC) signaling based on one or both of the first control signaling or the second control signaling associated with the CG configuration; selecting an SRS resource set from the first SRS resource set or the second SRS resource set based on the configuration status; and transmitting a physical uplink shared channel (PUSCH) associated with the CG configuration using the SRS resource set selected from the first SRS resource set or the second SRS resource set. and transmitting one or more uplink transmissions on a channel.

[0006]

[0006] Another inventive aspect of the subject matter described in this disclosure may be implemented in an apparatus for wireless communication, the apparatus including a processor, a memory coupled to the processor, and instructions stored in the memory. The instructions may be executable by the processor to cause the apparatus to receive first control signaling indicating a first SRS resource set associated with a first set of power control parameters and a second SRS resource set associated with a second set of power control parameters; receive second control signaling indicating a CG configuration; determine a configuration state of each of one or more fields in the RRC signaling based on one or both of the first control signaling or the second control signaling associated with the CG configuration, where the first set of power control parameters and the second set of power control parameters are for uplink transmissions; select an SRS resource set from the first SRS resource set or the second SRS resource set based on the configuration state; and transmit one or more uplink transmissions on a PUSCH associated with the CG configuration using the SRS resource set selected from the first SRS resource set or the second SRS resource set.

[0007] Another inventive aspect of the subject matter described in this disclosure may be implemented in an apparatus for wireless communications. The apparatus includes means for receiving a first control signaling indicating a first SRS resource set associated with a first set of power control parameters and a second SRS resource set associated with a second set of power control parameters, means for receiving a second control signaling indicating a CG configuration, the first set of power control parameters and the second set of power control parameters are for uplink transmissions, means for determining a configuration state of each of one or more fields in the RRC signaling based on one or both of the first control signaling or the second control signaling associated with the CG configuration, means for selecting an SRS resource set from the first SRS resource set or the second SRS resource set based on the configuration state, and means for transmitting one or more uplink transmissions on a PUSCH associated with the CG configuration using the SRS resource set selected from the first SRS resource set or the second SRS resource set.

[0008] Another inventive aspect of the subject matter described in this disclosure may be implemented in a non-transitory computer-readable medium storing code for wireless communication. The non-transitory computer-readable medium storing code includes instructions executable by a processor to receive a first control signaling indicating a first SRS resource set associated with a first set of power control parameters and a second SRS resource set associated with a second set of power control parameters, receive a second control signaling indicating a CG configuration, the first set of power control parameters and the second set of power control parameters are for uplink transmissions, determine a configuration state of each of one or more fields in the RRC signaling based on one or both of the first control signaling or the second control signaling associated with the CG configuration, select an SRS resource set from the first SRS resource set or the second SRS resource set based on the configuration state, and transmit one or more uplink transmissions on a PUSCH associated with the CG configuration using the SRS resource set selected from the first SRS resource set or the second SRS resource set.

[0009]

[0009] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, determining the configuration state of one or more fields in RRC signaling may include an operation, feature, means, or instruction for determining that one or more second fields of the one or more fields may be unconfigured.

[0010]

[0010] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, selecting an SRS resource set may include operations, features, means, or instructions for selecting a first SRS resource set based on one or more first fields associated with the first SRS resource set.

[0011]

[0011] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the one or more fields include an SRS resource indicator field, or one or both of a precoding and layer number field.

[0012]

[0012] Some examples of the methods, apparatus, and non-transitory computer-readable media described in this specification may further include an operation, feature, means, or instruction for receiving third control signaling indicating that one or more fields may be associated with one of the first SRS resource set or the second SRS resource set.

[0013]

[0013] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the one or more fields include an SRS resource indicator field, or one or both of a precoding and layer number field, and one or both of the first control signaling or the second control signaling includes a third control signaling.

[0014]

[0014] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, determining the configuration state of one or more fields in RRC signaling may include an operation, feature, means, or instruction for determining that one or more second fields of the one or more fields may be configured.

[0015]

[0015] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may further include operations, features, means, or instructions for determining that one or more first fields of the one or more fields in the RRC signaling may be associated with a first SRS resource set and determining that one or more second fields of the one or more fields in the RRC signaling may be associated with a second SRS resource set, where selecting an SRS resource set from the first SRS resource set or the second SRS resource set may be based on determining that the one or more first fields may be associated with the first SRS resource set and determining that the one or more second fields may be associated with the second SRS resource set.

[0016]

[0016] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, selecting an SRS resource set may include operations, features, means, or instructions for selecting an SRS resource set based on a fixed order for one or more uplink transmissions.

[0017]

[0017] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, selecting an SRS resource set based on a fixed order for one or more uplink transmissions may include operations, features, means, or instructions for selecting a first SRS resource set for a first uplink transmission at a time of the one or more uplink transmissions and selecting a first SRS resource set or a second SRS resource set for one or more second uplink transmissions at the time of the one or more uplink transmissions based on a mapping type.

[0018]

[0018] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the mapping type includes a cyclic mapping between the first SRS resource set and the second SRS resource set.

[0019]

[0019] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the mapping type includes a sequential mapping between the first SRS resource set and the second SRS resource set.

[0020]

[0020] Some examples of the methods, apparatus, and non-transitory computer-readable media described in this specification may further include operations, features, means, or instructions for receiving third control signaling having a field indicating that a first uplink transmission at a time of one or more uplink transmissions may be associated with one of the first SRS resource set or the second SRS resource set, where transmitting the one or more uplink transmissions may be based on the third control signaling.

[0021]

[0021] Some examples of the methods, apparatus, and non-transitory computer-readable media described in this specification may further include operations, features, means, or instructions for receiving third control signaling having a field indicating one of a fixed set of preconfigured mapping options associated with one or both of the first SRS resource set or the second SRS resource set.

[0022]

[0022] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the fixed set of pre-configured mapping options includes one or more of: a first uplink transmission at a time of one or more uplink transmissions associated with the first SRS resource set and a second uplink transmission at a time of one or more uplink transmissions associated with the second SRS resource set, a first uplink transmission at a time of one or more uplink transmissions associated with the second SRS resource set and a second uplink transmission at a time of one or more uplink transmissions associated with the first SRS resource set, one or more uplink transmissions associated with the first SRS resource set, or one or more uplink transmissions associated with the second SRS resource set.

[0023]

[0023] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the CG configuration includes a Type 1 CG PUSCH configuration.

[0024]

[0024] In some examples of the methods, devices, and non-transitory computer-readable media described in this specification, the one or more fields in the RRC signaling include one or more of an SRS resource indicator field, a precoding and layer number field, or a path loss reference index field.

[0025]

[0025] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the RRC signaling includes one or both of the first control signaling or the second control signaling.

[0026]

[0026] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, receiving second control signaling indicating a CG configuration may include an operation, feature, means, or instruction for receiving second control signaling indicating a CG PUSCH configuration.

[0027] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the one or more uplink transmissions include a codebook PUSCH transmission or a non-codebook PUSCH transmission. [Brief description of the drawings]

[0028] [Figure 1]

[0028] A diagram illustrating an example of a wireless communications system supporting sounding reference signal (SRS) resource indicator (SRI) association for configuration grant (CG) based transmit and receive point (TRP) physical uplink shared channel (PUSCH) transmissions according to an aspect of the present disclosure. [Diagram 2] FIG. 1 illustrates an example of a wireless communication system that supports sounding reference signal (SRS) resource indicator (SRI) association for configuration grant (CG) based transmit and receive point (TRP) physical uplink shared channel (PUSCH) transmissions, according to an aspect of the present disclosure. [Figure 3A] FIG. 1 illustrates an example of a wireless communication system that supports sounding reference signal (SRS) resource indicator (SRI) association for configuration grant (CG) based transmit and receive point (TRP) physical uplink shared channel (PUSCH) transmissions, according to an aspect of the present disclosure. [Figure 3B] FIG. 1 illustrates an example of a wireless communication system that supports sounding reference signal (SRS) resource indicator (SRI) association for configuration grant (CG) based transmit and receive point (TRP) physical uplink shared channel (PUSCH) transmissions, according to an aspect of the present disclosure. [Figure 4]

[0029] FIG. 1 illustrates an example of a process flow for supporting SRI association for CG-based TRP PUSCH transmissions, according to an aspect of the disclosure. [Diagram 3]

[0030] FIG. 1 illustrates an example of a process flow for supporting SRI association for CG-based TRP PUSCH transmissions, according to an aspect of the disclosure. [Figure 4]

[0031] 1 illustrates a block diagram of a device supporting SRI association for CG-based TRP PUSCH transmissions, according to an aspect of the disclosure. [Diagram 5] 1 illustrates a block diagram of a device supporting SRI association for CG-based TRP PUSCH transmissions, according to an aspect of the disclosure. [Figure 6]

[0032] 1 illustrates a block diagram of a communications manager supporting SRI association for CG-based TRP PUSCH transmissions, according to an aspect of the disclosure. [Figure 7]

[0033] FIG. 1 illustrates an illustration of a system including a device that supports SRI association for CG-based TRP PUSCH transmissions, according to an aspect of the disclosure. [Figure 8]

[0034] 11 is a flowchart illustrating a method for supporting SRI association for CG-based TRP PUSCH transmissions according to an aspect of the disclosure. [Figure 9] 11 is a flowchart illustrating a method for supporting SRI association for CG-based TRP PUSCH transmissions according to an aspect of the disclosure. [Figure 10] 11 is a flowchart illustrating a method for supporting SRI association for CG-based TRP PUSCH transmissions according to an aspect of the disclosure. [Figure 11] 11 is a flowchart illustrating a method for supporting SRI association for CG-based TRP PUSCH transmissions according to an aspect of the disclosure. [Figure 12] 11 is a flowchart illustrating a method for supporting SRI association for CG-based TRP PUSCH transmissions according to an aspect of the disclosure. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0029]

[0035] In some wireless communication systems, a base station may configure a user equipment (UE) with a configuration grant (CG) configuration that provides the UE with information related to transmitting one or more uplink transmissions (e.g., CG uplink transmissions). For example, the base station may transmit a radio resource control (RRC) signal to the UE that includes a CG configuration that the UE references or otherwise uses to transmit a CG uplink transmission. To support the transmission of a CG uplink transmission, the base station may provide the UE with two or more sounding reference signal (SRS) resource sets that the UE may use to transmit a CG uplink transmission. The SRS resource set may include one or more SRS resources, where the one or more SRS resources correspond to respective spatial domain filters associated with different beams. The UE may use such beams to transmit a CG uplink transmission. In some examples, the CG configuration may be associated with a type-1 CG. In contrast to Type 2 CG (where the base station first transmits an RRC signal including an SRS resource set and then later transmits DCI signaling to activate the SRS resource set), in the case of Type 1 CG, the base station transmits RRC signaling including information provided differently in the DCI signal to activate the SRS resource set, and therefore does not need to transmit DCI signaling as in the case of Type 2 CG. For example, the base station may transmit an RRC signal including a Type 1 CG configuration to the UE, where the base station may include an SRS resource indicator (SRI), precoding information, and rank in a first set of RRC fields (e.g., an srs-ResourceIndicator field and a precodingAndNumberOfLayers field).

[0030]

[0036] In the case of a multiple transmission and reception point (TRP) configuration, the base station may include a second set of RRC fields in the type-1 CG configuration, and may configure the UE with, for example, a first set of RRC fields for transmitting a CG uplink transmission in a first TRP, a second set of RRC fields for transmitting a CG uplink transmission in a second TRP, etc., such that the base station may receive different uplink transmissions in different TRPs. However, in some cases, the UE may have difficulty or may not be configured to determine which SRS resource set to use when interpreting the first set of RRC fields, the second set of RRC fields, etc. That is, it may be ambiguous for the UE which SRS resource set to use for the UE to apply the information included in the first set of RRC fields, the second set of RRC fields, etc. to the CG uplink transmission. Thus, when interpreting a first parameter (e.g., in the first set of RRC fields, such as the srs-ResourceIndicator parameter), the UE may have difficulty in determining whether to use the first SRS resource set or the second SRS resource set. Furthermore, interpreting the second parameter (e.g., in the first set of RRC fields, such as the precodingAndNumberOfLayers parameter) may depend on the amount of SRS ports and the selected SRS resources, and thus the UE may have difficulty in deciding whether to use the first SRS resource set or the second SRS resource set.

[0031]

[0037] Various aspects generally relate to a UE determining which SRS resource set to use to interpret one or more RRC fields in a CG configuration received from a base station. The base station may transmit RRC signaling to the UE according to the configuration state of each of one or more RRC fields (e.g., a first set of RRC fields and a second set of RRC fields) including a type 1 CG configuration. For example, the base station may configure the UE with a first SRS resource set associated with a first set of power control parameters (e.g., a target power spectral density, a fractional power control indicator, a closed loop index) and a second SRS resource set associated with a second set of power control parameters, and the base station may refrain from providing the UE with information that would otherwise be included in the second set of RRC fields of the CG configuration. That is, the second set of RRC fields may not be configured. For example, the base station may use a single TRP (sTRP) configuration such that the base station may refrain from including information in the second set of RRC fields of the CG configuration. That is, the base station may leave the second set of RRC fields devoid of information that the UE may use to transmit a CG uplink transmission. Alternatively, the base station may entirely refrain from including the second set of RRC fields in the CG configuration. The base station may similarly refrain from providing the UE with information that would otherwise be included in the third set of RRC fields, the fourth set of RRC fields, etc. Thus, the UE may identify the first set of RRC fields and associate the first set of RRC fields with a first SRS resource set. For example, the first SRS resource set is the SRS resource set with a lower SRS resource set ID compared to the SRS resource set indicator (ID) of the second SRS resource set, and the UE associates the first set of RRC fields with the SRS resource set with the lower SRS resource set ID. In some other examples, the base station may include an indication (explicit or implicit) in the RRC signaling including the CG configuration that may indicate which SRS resource set is associated with the first set of RRC fields.In other words, the base station may include an additional indication, such as an additional field, in the RRC signaling that indicates to the UE whether to use the first SRS resource set or the second SRS resource set when interpreting the first set of RRC fields.

[0032]

[0038] In some other examples, the base station configures the UE with multiple SRS resource sets, and the base station provides the UE with information related to the second set of RRC fields. That is, the second set of RRC fields may be configured. In some such examples, the base station may use a multiple TRP (mTRP) configuration such that the base station includes the second set of RRC fields in the CG configuration. In such examples, in contrast to other different examples in which the UE may not be configured to explicitly associate an SRS resource set with a respective set of RRC fields, the UE may determine that the first SRS resource set corresponds to the first set of RRC fields and that the second SRS resource set corresponds to the second set of RRC fields. In examples in which the UE is configured with both the first set of RRC fields and the second set of RRC fields, the UE may be configured to use a mapping between uplink transmissions and SRS resource sets. For example, the UE may be configured to use a mapping between a fixed order of CG uplink transmissions and SRS resource sets. That is, the UE may transmit a first CG uplink transmission using a first SRS resource set and a first set of power control parameters, and may transmit the remaining CG uplink transmissions using a different SRS resource set corresponding to the RRC configured mapping type, which may be, for example, cyclic mapping, sequential mapping, or any other mapping type. As another example, the UE may receive control information indicating an SRS resource set order associated with transmitting the CG uplink transmission. For example, the base station may transmit an additional RRC field (e.g., in an RRC signal including a CG configuration) indicating whether the first CG uplink transmission is associated with the first SRS resource set or the second SRS resource set. Alternatively, the base station may transmit the control information indicating the SRS resource set order in an RRC message different from the RRC signal including the CG configuration.As yet another example, the UE may receive an RRC message indicating one of a limited amount (e.g., four) of possible mapping configurations (e.g., dynamic switching possibilities) to be used by the UE, i.e., the base station may dynamically send to the UE an explicit indication of one of a limited amount of possible mapping configurations preconfigured at the UE that should be used by the UE.

[0033]

[0039] Particular implementations of the subject matter described in this disclosure may be implemented to achieve one or more of the following potential advantages: By configuring a UE to determine an association between an SRS resource set and a corresponding RRC field, aspects of the present disclosure may improve the efficiency of CG uplink transmissions in wireless networks, such as 5G networks. For example, a base station may configure a UE with two SRS resource sets, and the UE may more efficiently associate a particular SRS resource set with a respective RRC parameter associated with a CG uplink transmission, compared to other different techniques in which the UE may not be configured by the base station to associate the SRS resource set with the RRC parameter. The UE may use a particular SRS resource set or a combination thereof according to RRC signaling from the base station to interpret the RRC parameters and to use the SRS resource set and to transmit a CG uplink transmission to the base station with reference to the RRC parameters. In some implementations, the UE may further transmit a CG uplink transmission based on one or more interference conditions, a TRP configuration, a configured beam, a power mode, or any other channel change condition. Thus, a UE configured to execute such techniques may mitigate ambiguity in interpreting RRC parameters related to CG uplink transmissions. Furthermore, a UE using such techniques may transmit the determined mapping pattern, possible mapping configurations (e.g., dynamic switching possibilities), or both to the CG uplink transmission, resulting in more efficient and effective reception of the CG uplink transmission at the base station.

[0034]

[0040] Aspects of the present disclosure are first described in the context of a wireless communication system. Aspects of the present disclosure are also described in the context of a process flow. Aspects of the present disclosure are further illustrated by and described with reference to apparatus diagrams, system diagrams, and flow charts relating to SRI association for CG-based TRP Physical Uplink Shared Channel (PUSCH) transmission.

[0035]

[0041] 1 illustrates an example of a wireless communication system 100 supporting SRI association for CG-based TRP PUSCH transmission according to an aspect of the disclosure. The wireless communication system 100 may include one or more base stations 105, one or more UEs 115, and a core network 130. In some cases, the wireless communication system 100 may be a Long Term Evolution (LTE) network, a LTE-Advanced (LTE-A) network, a LTE-A Pro network, or a New Radio (NR) network. In some examples, the wireless communication system 100 may support enhanced broadband communications, ultra-reliable (e.g., mission-critical) communications, low latency communications, communications with low-cost and low-complexity devices, or any combination thereof.

[0036]

[0042] The base stations 105 may be distributed throughout a geographic area to form a wireless communication system 100 and may be devices of different configurations or with different capabilities. The base stations 105 and the UEs 115 may communicate wirelessly via one or more communication links 125. Each base station 105 may provide a coverage area 110 over which the UEs 115 and the base station 105 may establish one or more communication links 125. The coverage area 110 may be an example of a geographic area over which the base stations 105 and the UEs 115 may support communication of signals according to one or more radio access technologies.

[0037]

[0043] The UEs 115 may be distributed throughout the coverage area 110 of the wireless communication system 100, and each UE 115 may be fixed or mobile or both at different times. The UEs 115 may be devices of different forms or with different capabilities. Some example UEs 115 are shown in FIG. 1. The UEs 115 described herein may be capable of communicating with various types of devices, such as other UEs 115, base stations 105, or network equipment (e.g., core network nodes, relay devices, integrated access and backhaul (IAB) nodes, or other network equipment), as shown in FIG. 1.

[0038]

[0044] The base stations 105 may communicate with the core network 130, with each other, or both. For example, the base stations 105 may interface with the core network 130 through one or more backhaul links 120 (e.g., via an S1, N2, N3, or other interface). The base stations 105 may communicate with each other over the backhaul links 120 (e.g., via an X2, Xn, or other interface) either directly (e.g., directly between the base stations 105) or indirectly (e.g., via the core network 130), or both. In some examples, the backhaul links 120 may be or include one or more wireless links.

[0039]

[0045] One or more of the base stations 105 described herein may include or be referred to by one skilled in the art as a base transceiver station, radio base station, access point, radio transceiver, Node B, eNode B (eNB), next generation Node B or giganode B (any of which may be referred to as gNB), Home Node B, Home eNode B, or other suitable terminology.

[0040]

[0046] The UE 115 may include or be referred to as a mobile device, a wireless device, a remote device, a handheld device, or a subscriber device, or some other suitable terminology, where a "device" may also be referred to as a unit, a station, a terminal, or a client, among other examples. The UE 115 may also include or be referred to as a personal electronic device, such as a cellular phone, a personal digital assistant (PDA), a tablet computer, a laptop computer, or a personal computer. In some examples, the UE 115 may include or be referred to as a Wireless Local Loop (WLL) station, an Internet of Things (IoT) device, an Internet of Everything (IoE) device, or a Machine Type Communications (MTC) device, among other examples, which may be implemented in various objects, such as an appliance, a vehicle, or a meter, among other examples.

[0041]

[0047] The UEs 115 described herein may be capable of communicating with various types of devices, such as other UEs 115, which may act as relays at times, as shown in FIG. 1, as well as base stations 105 and network equipment, including macro eNBs or gNBs, small cell eNBs or gNBs, or relay base stations, among other examples.

[0042]

[0048] The UE 115 and the base station 105 may wirelessly communicate with each other via one or more communication links 125 on one or more carriers. The term “carrier” may refer to a set of radio frequency spectrum resources having a defined physical layer structure for supporting the communication link 125. For example, a carrier used for the communication link 125 may include a portion of a radio frequency spectrum band (e.g., a bandwidth portion (BWP)) operated according to one or more physical layer channels for a given radio access technology (e.g., LTE, LTE-A, LTE-A Pro, NR). Each physical layer channel may carry acquisition signaling (e.g., synchronization signals, system information), control signaling that coordinates the operation of the carriers, user data, or other signaling. The wireless communication system 100 may support communication with the UE 115 using carrier aggregation or multi-carrier operation. The UE 115 may be configured with multiple downlink component carriers and one or more uplink component carriers according to a carrier aggregation configuration. Carrier aggregation may be used with both frequency division duplex (FDD) and time division duplex (TDD) component carriers.

[0043]

[0049] In some examples (e.g., in a carrier aggregation configuration), a carrier may also have acquisition or control signaling that coordinates operation for other carriers. A carrier may be associated with a frequency channel (e.g., an Evolved Universal Mobile Telecommunications System Terrestrial Radio Access (E-UTRA) Absolute Radio Frequency Channel Number (EARFCN)) and may be arranged according to a channel raster for discovery by the UE 115. A carrier may be operated in a standalone mode where initial acquisition and connection may be made by the UE 115 over the carrier, or a carrier may be operated in a non-standalone mode where a connection is anchored using a different carrier (e.g., of the same or different radio access technology).

[0044]

[0050] The communication links 125 shown in the wireless communication system 100 may include uplink transmissions from the UE 115 to the base station 105 or downlink transmissions from the base station 105 to the UE 115. A carrier may carry downlink or uplink communications (e.g., in FDD mode) or may be configured to carry downlink and uplink communications (e.g., in TDD mode).

[0045]

[0051] A carrier may be associated with a particular bandwidth of the radio frequency spectrum, and in some examples, the carrier bandwidth may be referred to as the carrier or the “system bandwidth” of the wireless communication system 100. For example, the carrier bandwidth may be one of several determined bandwidths (e.g., 1.4, 3, 5, 10, 15, 20, 40, or 80 megahertz (MHz)) for a carrier of a particular radio access technology. The devices (e.g., the base station 105, the UE 115, or both) of the wireless communication system 100 may have a hardware configuration that supports communication on a particular carrier bandwidth or may be configurable to support communication on one of a set of carrier bandwidths. In some examples, the wireless communication system 100 may include a base station 105 or UE 115 that supports simultaneous communication via carriers associated with multiple carrier bandwidths. In some examples, each served UE 115 may be configured to operate on a portion (e.g., a sub-band, BWP) or all of the carrier bandwidth.

[0046]

[0052] A signal waveform transmitted on a carrier may be composed of multiple subcarriers (e.g., using a multicarrier modulation (MCM) technique such as orthogonal frequency division multiplexing (OFDM) or discrete Fourier transform extended OFDM (DFT-S-OFDM)). In a system employing MCM techniques, a resource element may consist of one symbol duration (e.g., the duration of one modulation symbol) and one subcarrier, where the symbol duration and the subcarrier spacing are inversely related. The number of bits carried by each resource element may depend on the modulation scheme (e.g., the order of the modulation scheme, the coding rate of the modulation scheme, or both). Thus, the more resource elements the UE 115 receives and the higher the order of the modulation scheme, the higher the data rate for the UE 115 may be. Wireless communication resources may refer to a combination of radio frequency spectrum resources, time resources, and spatial resources (e.g., spatial layers or beams), and the use of multiple spatial layers may further increase the data rate or data integrity for communication with the UE 115.

[0047]

[0053] One or more numerologies may be supported for a carrier, where the numerology may include a subcarrier spacing (Δf) and a cyclic prefix. A carrier may be divided into one or more BWPs having the same or different numerologies. In some examples, a UE 115 may be configured with multiple BWPs. In some examples, a single BWP for a carrier may be active at a given time, and communication for the UE 115 may be limited to one or more active BWPs.

[0048]

[0054] The time interval for the base station 105 or the UE 115 may be, for example, T s =1 / (Δf max N f ) seconds, where Δf max may represent the maximum subcarrier spacing supported, and N fmay represent the maximum discrete Fourier transform (DFT) size supported. The communication resource time intervals may be organized according to radio frames, each having a specified duration (e.g., 10 milliseconds (ms)). Each radio frame may be identified by a system frame number (SFN) (e.g., ranging from 0 to 1023).

[0049]

[0055] Each frame may include multiple consecutively numbered subframes or slots, and each subframe or slot may have the same duration. In some examples, a frame may be divided (e.g., in the time domain) into subframes, and each subframe may be further divided into several slots. Alternatively, each frame may include a variable number of slots, and the number of slots may depend on the subcarrier spacing. Each slot may include several symbol durations (e.g., depending on the length of a cyclic prefix prepended to each symbol duration). In some wireless communications systems 100, a slot may be further divided into multiple minislots containing one or more symbols. Excluding the cyclic prefix, each symbol duration may include one or more (e.g., N f The duration of the symbol duration may depend on the subcarrier spacing or the frequency operating band.

[0050]

[0056] A subframe, slot, minislot, or symbol may be the smallest scheduling unit (e.g., in the time domain) of the wireless communications system 100 and may be referred to as a transmission time interval (TTI). In some examples, the TTI duration (e.g., the number of symbol durations in a TTI) may be variable. Additionally or alternatively, the smallest scheduling unit of the wireless communications system 100 may be dynamically selected (e.g., in a burst of shortened TTIs (sTTIs)).

[0051]

[0057] The physical channels may be multiplexed on the carriers according to various techniques. The physical control channels and the physical data channels may be multiplexed on the downlink carriers using, for example, one or more of a time division multiplexing (TDM), a frequency division multiplexing (FDM), or a hybrid TDM-FDM technique. A control region (e.g., a control resource set (CORESET)) for the physical control channel may be defined by a number of symbol periods and may span the system bandwidth of the carrier or a subset of the system bandwidth. One or more control regions (e.g., CORESET) may be configured for a set of UEs 115. For example, one or more of the UEs 115 may monitor or search the control region for control information according to one or more search space sets, and each search space set may include one or more control channel candidates at one or more aggregation levels configured in a cascaded manner. The aggregation level for the control channel candidates may refer to a number of control channel resources (e.g., control channel elements (CCEs)) associated with coded information for a control information format having a given payload size. The search space sets may include a common search space set configured for sending control information to multiple UEs 115 and a UE-specific search space set for sending control information to a particular UE 115.

[0052]

[0058] Each base station 105 may provide communication coverage via one or more cells, e.g., macro cells, small cells, hot spots, or other types of cells, or any combination thereof. The term "cell" may refer to a logical communication entity used for communication with the base station 105 (e.g., on a carrier) and may be associated with an identifier (e.g., a physical cell identifier (PCID), a virtual cell identifier (VCID), or other) to distinguish neighboring cells. In some examples, a cell may also refer to a geographic coverage area 110 or a portion (e.g., a sector) of a geographic coverage area 110 in which the logical communication entity operates. Such a cell may range from a smaller area (e.g., a structure, a subset of a structure) to a larger area, depending on various factors such as the capabilities of the base station 105. For example, a cell may be or include a building, a subset of a building, or an exterior space between or overlapping with the geographic coverage area 110, among other examples.

[0053]

[0059] A macro cell generally covers a relatively large geographic area (e.g., a radius of several kilometers) and may allow unrestricted access by UEs 115 subscribing to the service of a network provider supporting the macro cell. A small cell may be associated with a lower power base station 105 compared to a macro cell, and the small cell may operate in the same or different (e.g., licensed, unlicensed) frequency band as the macro cell. A small cell may provide unrestricted access to UEs 115 subscribing to the service of a network provider, or may provide restricted access to UEs 115 having an association with a small cell (e.g., UEs 115 in a closed subscriber group (CSG), UEs 115 associated with a user at home or in the office). A base station 105 may support one or more cells and may also support communication on one or more cells using one or more component carriers.

[0054]

[0060] In some examples, a carrier may support multiple cells, and different cells may be configured according to different protocol types (e.g., MTC, Narrowband IoT (NB-IoT), enhanced Mobile Broadband (eMBB)) that may provide access to different types of devices.

[0055]

[0061] In some examples, the base stations 105 are mobile and may provide communication coverage to moving geographic coverage areas 110. In some examples, different geographic coverage areas 110 associated with different technologies may overlap, but the different geographic coverage areas 110 may be supported by the same base station 105. In other examples, overlapping geographic coverage areas 110 associated with different technologies may be supported by different base stations 105. The wireless communication system 100 may include heterogeneous networks in which different types of base stations 105 provide coverage to various geographic coverage areas 110, e.g., using the same or different radio access technologies.

[0056]

[0062] The wireless communications system 100 may support synchronous or asynchronous operation. For synchronous operation, the base stations 105 may have similar frame timing and transmissions from different base stations 105 may be approximately aligned in time. For asynchronous operation, the base stations 105 may have different frame timing and transmissions from different base stations 105 may not be aligned in time, in some examples. The techniques described herein may be used for either synchronous or asynchronous operation.

[0057]

[0063] Some UEs 115 may be configured to employ operating modes that reduce power consumption, such as half-duplex communication (e.g., a mode that supports one-way communication via transmission or reception, rather than transmission and reception simultaneously). In some examples, the half-duplex communication may be performed at a reduced peak rate. Other power saving techniques for the UE 115 include entering a power saving deep sleep mode when not engaged in active communication, operating on a limited bandwidth (e.g., pursuant to narrowband communication), or a combination of these techniques. For example, some UEs 115 may be configured for operation using a narrowband protocol type associated with a defined portion or range (e.g., a set of subcarriers or resource blocks (RBs)) within a carrier, within a guard band of the carrier, or outside of the carrier.

[0058]

[0064] The wireless communication system 100 may be configured to support ultra-reliable or low latency communications, or various combinations thereof. For example, the wireless communication system 100 may be configured to support ultra-reliable low latency communications (URLLC) or mission-critical communications. The UE 115 may be designed to support ultra-reliable, low latency, or critical functions (e.g., mission-critical functions). Ultra-reliable communications may include private or group communications and may be supported by one or more mission-critical services, such as mission-critical push-to-talk (MCPTT), mission-critical video (MCVideo), or mission-critical data (MCData). Support for mission-critical functions may include service prioritization, and the mission-critical services may be used for public safety or general commercial applications. The terms ultra-reliable, low latency, mission-critical, and ultra-reliable low latency may be used interchangeably herein.

[0059]

[0065] In some examples, the UE 115 may also be able to communicate directly with other UEs 115 over a device-to-device (D2D) communication link 135 (e.g., using a peer-to-peer (P2P) or D2D protocol). One or more UEs 115 utilizing D2D communication may be within the geographic coverage area 110 of the base station 105. Other UEs 115 in such a group may be outside the geographic coverage area 110 of the base station 105 or may not otherwise be able to receive transmissions from the base station 105. In some examples, a group of UEs 115 communicating via D2D communication may utilize a one-to-many (1:M) system in which each UE 115 transmits to every other UE 115 in the group. In some examples, the base station 105 facilitates scheduling of resources for D2D communication. In other cases, D2D communication is performed between UEs 115 without the involvement of the base station 105.

[0060]

[0066] The core network 130 may provide user authentication, access authorization, tracking, Internet Protocol (IP) connectivity, and other access, routing, or mobility functions. The core network 130 may be an evolved packet core (EPC) or 5G core (5GC), which may include at least one control plane entity (e.g., a mobility management entity (MME), an access and mobility management function (AMF)) that manages access and mobility, and at least one user plane entity (e.g., a serving gateway (S-GW), a packet data network (PDN) gateway (P-GW), or a user plane function (UPF)) that routes packets or interconnection to external networks. The control plane entity may manage non-access stratum (NAS) functions, such as mobility, authentication, and bearer management, for the UEs 115 served by the base stations 105 associated with the core network 130. User IP packets may be forwarded through the user plane entity, which may provide IP address allocation as well as other functions. The user plane entities may be connected to IP services 150 for one or more network operators. The IP services 150 may include access to the Internet, an intranet, an IP Multimedia Subsystem (IMS), or packet-switched streaming services.

[0061]

[0067] Some of the network devices, such as the base station 105, may include subcomponents, such as an access network entity 140, which may be an example of an access node controller (ANC). Each access network entity 140 may communicate with the UE 115 through one or more other access network transmission entities 145, which may be referred to as a radio head, a smart radio head, or a TRP. Each access network transmission entity 145 may include one or more antenna panels. In some configurations, various functions of each access network entity 140 or base station 105 may be distributed across various network devices (e.g., radio heads and ANCs) or integrated into a single network device (e.g., the base station 105).

[0062]

[0068] The wireless communication system 100 may operate using one or more frequency bands typically within the range of 300 megahertz (MHz) to 300 gigahertz (GHz). Generally, the 300 MHz to 3 GHz region is known as the ultra-high frequency (UHF) region or decimeter band because the wavelengths range from approximately 1 decimeter to 1 meter in length. Although UHF waves may be blocked or redirected by buildings and environmental features, the waves can penetrate structures well enough for a macrocell to serve UEs 115 located indoors. Transmission of UHF waves may be associated with smaller antennas and shorter distances (e.g., less than 100 kilometers) compared to transmissions using smaller frequencies and longer waves in the high frequency (HF) or very high frequency (VHF) portions of the spectrum below 300 MHz.

[0063]

[0069] The wireless communication system 100 may also operate in the Super High Frequency (SHF) region, using a frequency band from 3 GHz to 30 GHz, also known as the centimeter band, or in the Extremely High Frequency (EHF) region of the spectrum, also known as the millimeter band (e.g., from 30 GHz to 300 GHz). In some examples, the wireless communication system 100 may support millimeter wave (mmW) communications between the UE 115 and the base station 105, and the EHF antennas of the respective devices may be smaller and more closely spaced than the UHF antennas. In some examples, this may facilitate the use of antenna arrays within the devices. However, propagation of EHF transmissions may experience greater atmospheric attenuation and be shorter distances than SHF or UHF transmissions. The techniques disclosed herein may be employed across transmissions using one or more different frequency regions, and the designated use of bands across these frequency regions may vary by country or regulatory agency.

[0064]

[0070] The wireless communication system 100 may utilize both licensed and unlicensed radio frequency spectrum bands. For example, the wireless communication system 100 may employ Licensed Assisted Access (LAA), LTE Unlicensed (LTE-U) radio access technology, or NR technology in an unlicensed band, such as the 5 GHz Industrial, Scientific, and Medical (ISM) band. When operating in an unlicensed radio frequency spectrum band, devices such as the base station 105 and the UE 115 may employ carrier sensing for collision detection and avoidance. In some examples, operation in the unlicensed band may be based on a carrier aggregation configuration with component carriers operating in a licensed band (e.g., LAA). Operation in the unlicensed spectrum may include downlink transmissions, uplink transmissions, P2P transmissions, or D2D transmissions, among other examples.

[0065]

[0071] The base station 105 or UE 115 may be equipped with multiple antennas that may be used to employ techniques such as transmit diversity, receive diversity, multiple-input multiple-output (MIMO) communications, or beamforming. The antennas of the base station 105 or UE 115 may be located in one or more antenna arrays or antenna panels that may support MIMO operations or transmit or receive beamforming. For example, one or more base station antennas or antenna arrays may be co-located in an antenna assembly such as an antenna tower. In some examples, the antennas or antenna arrays associated with the base station 105 may be located in diverse geographic locations. The base station 105 may have an antenna array with several rows and columns of antenna ports that the base station 105 may use to support beamforming of communications with the UE 115. Similarly, the UE 115 may have one or more antenna arrays that may support various MIMO or beamforming operations. Additionally or alternatively, the antenna panels may support radio frequency beamforming for signals transmitted through the antenna ports.

[0066]

[0072] A base station 105 or a UE 115 may use MIMO communications to take advantage of multipath signal propagation and increase spectral efficiency by transmitting or receiving multiple signals via different spatial layers. Such techniques may be referred to as spatial multiplexing. The multiple signals may be transmitted by a transmitting device via, for example, different antennas or different combinations of antennas. Similarly, the multiple signals may be received by a receiving device via different antennas or different combinations of antennas. Each of the multiple signals may be referred to as a separate spatial stream and may carry bits associated with the same data stream (e.g., the same codeword) or different data streams (e.g., different codewords). Different spatial layers may be associated with different antenna ports used for channel measurement and reporting. MIMO techniques include single-user MIMO (SU-MIMO), in which multiple spatial layers are transmitted to the same receiving device, and multi-user MIMO (MU-MIMO), in which multiple spatial layers are transmitted to multiple devices.

[0067]

[0073] Beamforming, sometimes referred to as spatial filtering, directional transmission, or directional reception, is a signal processing technique that may be used in a transmitting or receiving device (e.g., base station 105, UE 115) to shape or steer an antenna beam (e.g., transmit beam, receive beam) along a spatial path between the transmitting device and the receiving device. Beamforming may be achieved by combining signals communicated through antenna elements of an antenna array such that some signals propagating in a particular orientation relative to the antenna array experience constructive interference and others experience destructive interference. Adjustment of signals communicated through antenna elements may include the transmitting or receiving device applying an amplitude offset, a phase offset, or both to signals conveyed through an antenna element associated with the device. The adjustment associated with each of the antenna elements may be defined by a beamforming weight set associated with a particular orientation (e.g., relative to the antenna array of the transmitting or receiving device, or to some other orientation).

[0068]

[0074] The base station 105 or the UE 115 may use beam sweeping techniques as part of a beamforming operation. For example, the base station 105 may use multiple antennas or antenna arrays (e.g., antenna panels) to perform a beamforming operation for directional communication with the UE 115. Some signals (e.g., synchronization signals, reference signals, beam selection signals, or other control signals) may be transmitted multiple times by the base station 105 in different directions. For example, the base station 105 may transmit signals according to different beamforming weight sets associated with different transmission directions. The transmissions in various beam directions may be used to identify beam directions (e.g., by a transmitting device such as the base station 105 or by a receiving device such as the UE 115) for subsequent transmission or reception by the base station 105.

[0069]

[0075] Some signals, such as data signals associated with a particular receiving device, may be transmitted by the base station 105 in a single beam direction (e.g., a direction associated with a receiving device, such as the UE 115). In some examples, a beam direction associated with a transmission along a single beam direction may be determined based on signals transmitted in one or more beam directions. For example, the UE 115 may receive one or more of the signals transmitted by the base station 105 in different directions and report to the base station 105 an indication of the signal received by the UE 115 with the best signal quality or an otherwise acceptable signal quality.

[0070]

[0076] In some examples, transmission by a device (e.g., by a base station 105 or a UE 115) may be performed using multiple beam directions, and the device may use a combination of digital precoding or radio frequency beamforming to generate a composite beam for transmission (e.g., from the base station 105 to the UE 115). The UE 115 may report feedback indicating precoding weights for one or more beam directions, and the feedback may correspond to a configured number of beams across the system bandwidth or one or more subbands. The base station 105 may transmit a reference signal (e.g., a cell-specific reference signal (CRS), a channel state information reference signal (CSI-RS)), which may be precoded or amplicoded. The UE 115 may provide feedback for beam selection, which may be a precoding matrix indicator (PMI) or codebook-based feedback (e.g., a multi-panel type codebook, a linear combination type codebook, a port selection type codebook). Although these techniques have been described with respect to signals transmitted in one or more directions by the base station 105, the UE 115 may employ similar techniques for transmitting a signal multiple times in different directions (e.g., to identify a beam direction for subsequent transmission or reception by the UE 115) or for transmitting a signal in a single direction (e.g., to transmit data to a receiving device).

[0071]

[0077] A receiving device (e.g., UE 115) may attempt multiple receive configurations (e.g., directional listening) when receiving various signals from the base station 105, such as synchronization signals, reference signals, beam selection signals, or other control signals. For example, the receiving device may attempt multiple receive directions by receiving via different antenna subarrays, by processing the received signals according to different antenna subarrays, by receiving according to different receive beamforming weight sets (e.g., different directional listening weight sets) applied to signals received at multiple antenna elements of the antenna array, or by processing the received signals according to different receive beamforming weight sets applied to signals received at multiple antenna elements of the antenna array, any of which may be referred to as "listening" according to different receive configurations or receive directions. In some examples, the receiving device may use a single receive configuration to receive along a single beam direction (e.g., when receiving a data signal). A single receive configuration may be aligned in a beam direction determined based on listening along different receive configuration directions (e.g., a beam direction determined to have the highest signal strength, highest signal-to-noise ratio (SNR), or otherwise acceptable signal quality based on listening along multiple beam directions).

[0072]

[0078] The wireless communication system 100 may be a packet-based network that operates according to a layered protocol stack. In the user plane, communication at the bearer or Packet Data Convergence Protocol (PDCP) layer may be IP-based. The Radio Link Control (RLC) layer may perform packet segmentation and reassembly to communicate over logical channels. The Medium Access Control (MAC) layer may perform priority handling and multiplexing of logical channels into transport channels. The MAC layer may also use error detection, error correction, or both techniques to support retransmissions at the MAC layer to improve link efficiency. In the control plane, the RRC protocol layer may establish, configure, and maintain an RRC connection between the UE 115 and the base station 105 or core network 130, which supports radio bearers for user plane data. In the physical layer, the transport channels may be mapped to physical channels.

[0073]

[0079] The UE 115 and the base station 105 may support retransmission of data to increase the likelihood that the data is successfully received. Hybrid Automatic Repeat Request (HARQ) feedback is one technique for increasing the likelihood that the data is correctly received on the communication link 125. HARQ may include a combination of error detection (e.g., using a Cyclic Redundancy Check (CRC)), forward error correction (FEC), and retransmission (e.g., Automatic Repeat Request (ARQ)). HARQ may improve throughput at the MAC layer in poor radio conditions (e.g., low signal-to-noise conditions). In some examples, a device may support same-slot HARQ feedback, in which the device may provide HARQ feedback in a particular slot for data received in a previous symbol in that slot. In other cases, the device may provide HARQ feedback in a subsequent slot or according to some other time interval.

[0074]

[0080] In some cases, the base station 105 may configure the UE 115 with a CG configuration for CG uplink transmission. For example, the base station 105 may transmit a CG configuration indicating a type of CG, such as a type 1 CG, using RRC signaling to configure and activate the CG uplink transmission. To support the CG uplink transmission, the base station 105 may configure the UE 115 with one or more SRS resource sets that the UE 115 may refer to when transmitting uplink information to the base station 105. In some cases, the UE 115 may have difficulty determining (e.g., may not be configured to determine) which SRS resource set to use when interpreting the RRC parameters configured by the base station 105. That is, when applying the RRC parameters related to the CG uplink transmission (e.g., a first parameter such as a first srs-ResourceIndicator parameter and a first precodingAndNumberOfLayers parameter) to one or more uplink transmissions, it may be ambiguous for the UE 115 which SRS resource set to use. For example, in interpreting the srs-ResourceIndicator parameter, it may be ambiguous for the UE whether to use the first SRS resource set or the second SRS resource set. Similarly, in the case of a second parameter, such as a precodingAndNumberOfLayers parameter, the UE may have difficulty in determining the SRS resource set to use, since the interpretation of such a parameter may depend on the amount of SRS ports and the selected SRS resources. Furthermore, if the base station 105 may use an mTRP configuration, the base station 105 may transmit a second set of RRC parameters or a second set of RRC fields (e.g., a second field, such as a second srs-ResourceIndicator field, and a second field, such as a second precodingAndNumberOfLayers field). Thus, the UE 115 may experience increased difficulty in interpreting such RRC signaling.

[0075]

[0081] In some examples, the UE 115 may be configured to determine which SRS resource set to use when interpreting the CG configuration. For example, the base station 105 may configure the UE 115 with multiple SRS resource sets, such as two SRS resource sets, and the base station 105 may refrain from configuring a second set of RRC fields. For example, the base station 105 may use an sTRP configuration or any other configuration such that the base station 105 may refrain from configuring the UE 115 with the second set of RRC fields. In such examples, the UE 115 may associate a first set of RRC fields with a first SRS resource set. Additionally or alternatively, in some examples, the base station 105 may include an explicit indication in the CG configuration that may indicate which SRS resource set may be associated with the first set of RRC fields.

[0076]

[0082] In other examples, the base station 105 may configure the UE 115 with two SRS resource sets, and the base station 105 may configure the UE 115 with a second set of RRC fields. For example, the base station 105 may use an mTRP configuration or any other configuration such that the base station 105 may configure the UE 115 with the second set of RRC fields. In such examples, the UE 115 may determine that the first SRS resource set corresponds to the first set of RRC fields and that the second SRS resource set corresponds to the second set of RRC fields. In examples in which the UE 115 may be configured with both the first set of RRC fields and the second set of RRC fields, the UE 115 may be configured to use the determined mapping between uplink transmissions and the SRS resource sets.

[0077]

[0083] FIG. 2 illustrates an example of a wireless communication system 200 supporting SRI association for CG-based TRP PUSCH transmissions according to aspects of the disclosure. The wireless communication system 200 may be implemented to implement or realize aspects of the wireless communication system 100. For example, the wireless communication system 200 may illustrate communication between a UE 115-a and a base station 105-a, which may be an example of a corresponding device, including reference to FIG. 1. The base station 105-a may configure the UE 115-a with a CG configuration 205 for multiple CG uplink transmissions using multiple beams 230 that may be directed to respective TRPs 240 at the base station 105-a. In some examples, the UE 115-a may associate each CG uplink transmission with an SRS resource set 235. Thus, the UE 115-a may follow techniques described herein to transmit a CG uplink transmission using the correct SRS resource set 235 or order of the SRS resource sets 235.

[0078]

[0084] In the wireless communication system 200, the base station 105-a may configure the UE 115-a with a CG configuration 205 for CG uplink transmission. In some examples, the base station 105-a may transmit the CG configuration 205 to the UE 115-a via RRC signaling, such as the RRC signaling shown as being sent by the base station 105-a via the downlink 210. The base station 105-a may indicate via the CG configuration 205 whether the CG uplink transmission is associated with a type 1 CG (which may be equivalently referred to as uplink CG type 1) or a type 2 CG (which may be equivalently referred to as uplink CG type 2). For example, the base station 105-a may transmit a CG configuration 205 that may indicate either a type 1 CG or a type 2 CG. If the CG configuration 205 indicates Type 1 CG, the base station 105-a may activate or deactivate grants for CG uplink transmissions via RRC signaling in addition to configuring uplink transmission parameters in the UE 115-a via RRC signaling. In the case of Type 1 CG, the base station 105-a may also deactivate the CG configuration 205 via RRC signaling.

[0079]

[0085] If the CG configuration 205 indicates a Type 1 CG, the CG configuration 205 may configure, indicate, or otherwise provide to the UE 115-a one or more transmission parameters that the UE 115-a may use for CG uplink transmissions. For example, the base station 105-a may transmit the CG configuration 205 to the UE 115-a, which includes or indicates one or both of a ConfiguredGrantConfig parameter or an rrc-ConfiguredUplinkGrant parameter.

[0080]

[0086] In some cases, the base station 105-a may configure various transmission parameters corresponding to the CG uplink transmission via the CG configuration 205. In some examples, the configured transmission power control parameters may include a value corresponding to a target power spectral density (e.g., a P0 value), a value indicating whether fractional power control for the CG uplink transmission should be enabled or disabled (e.g., an alpha value), a closed-loop index, or any combination thereof. Thus, the base station 105-a may configure the power control parameters corresponding to the CG uplink transmission in the CG configuration 205 (e.g., via RRC signaling such as a ConfiguredGrantConfig message). For example, the ConfiguredGrantConfig message may include a p0-PUSCH-Alpha field that may configure the P0 and alpha values, and may also include a powerControlLoopToUse field that may configure a closed-loop index value for the CG uplink transmission. Further, the CG configuration 205 may indicate one or more of an offset 220, a duration 225, or any other parameter that may schedule the UE 115-a to signal an uplink transmission (e.g., Tx shown in uplink 215) over a particular duration (e.g., slot, span, symbol, transmission time interval (TTI)). For example, in the wireless communication system 200, the UE 115-a may be configured with a TTI spanning three slots. That is, the duration 225 of the TTI may be three slots. Further, in such an example, the UE 115-a may be configured with an offset 220 of one slot. Thus, the UE 115-a may be configured to transmit uplink information (e.g., a CG uplink transmission) over the second slot of the configured TTI.

[0081]

[0087] In some cases, the UE 115-a may also receive a configuration of a path loss reference signal (PL-RS) from the base station 105-a via the CG configuration 205. If the CG configuration 205 indicates a Type 1 CG, the base station 105-a may configure an initial transmission via a pathlossReferenceIndex field in an rrc-ConfiguredUplinkGrant parameter. In some cases, the base station 105-a may request a retransmission of a CG uplink transmission from the UE 115-a via a scheduling DCI message, which may include an SRI field indicating the PL-RS configuration.

[0082]

[0088] The UE 115-a may be configured to transmit CG uplink transmissions according to a "codebook" based transmission or a "non-codebook" based transmission. Thus, the UE 115-a may be configured to use the SRS resource set 235 with a codebook or non-codebook set use, respectively. If the SRS resource set 235 has a codebook set use, the UE 115-a may be configured with an SRS resource restriction. For example, the UE 115-a may be configured with an amount of SRS resources, such as, for example, a limited amount of four SRS resources in the SRS resource set 235. In such an example, each SRS resource may be RRC configured (e.g., via RRC signaling from the base station 105-a) with an amount of ports (e.g., indicated by the parameter: nrofSRS-Ports). In some cases, the base station 105-a may indicate a single SRS resource from the SRS resource set 235 in an uplink DCI message, such as a DCI message scheduling an uplink retransmission. In such a case, the amount of ports configured for the indicated SRS resource may indicate the amount of antenna ports for CG uplink transmission. Furthermore, the UE 115-a may transmit the PUSCH (e.g., CG uplink transmission) using the same spatial domain filter (e.g., the same beam 230) as the SRS resource indicated by the base station 105-a. In some cases, the base station 105-a may indicate the rank and precoder for the PUSCH (e.g., CG uplink transmission) to the UE 115-a. For example, the base station 105-a may transmit the amount of layers and transmitted precoding matrix indicator (TPMI) for the scheduled CG uplink transmission in a DCI field (e.g., a field for precoding information and amount of layers) different from the SRI field.

[0083]

[0089] If the SRS resource set 235 has a use set in a non-codebook, the UE 115-a may be configured with an SRS resource restriction. For example, the UE 115-a may be configured to use an amount of SRS resources, such as, for example, a limited amount of four SRS resources. In such an example, each SRS resource may be associated with a single respective port. In some cases, the base station 105-a may indicate one or more SRS resources from the SRS resource set 235 in an uplink DCI message (e.g., a retransmission scheduling DCI message). The amount of SRS resources indicated in such DCI may indicate a rank of a PUSCH to which the scheduling DCI message may be associated. For example, the amount of SRS resources indicated in a PUSCH scheduling DCI message may indicate to the UE 115-a an amount of transmission layers that the UE 115-a may use when transmitting a CG uplink transmission scheduled by such DCI. Further, the PUSCH (e.g., CG uplink transmission) may be transmitted with the same precoder, spatial domain filter (e.g., beam 230), and any other transmission parameters associated with one or more SRS resources indicated by the base station 105-a. In some cases, the base station 105-a may configure the UE 115-a with an SRS resource set 235 with non-zero power (NZP) CSI-RS resources (e.g., using RRC parameters associated with the CSI-RS). In such a case, the UE 115-a may determine (e.g., calculate) the precoder to be used for the SRS resources in the SRS resource set 235 based on measuring the associated NZP CSI-RS resource.

[0084]

[0090] In some examples, it may be advantageous for the base station 105-a to receive CG uplink transmissions from the UE 115-a on multiple TRPs 240 or multiple panels. For example, as a result of receiving CG uplink transmissions from the UE 115-a on multiple TRPs 240 or multiple panels, the UE 115-a and the base station 105-a may support greater robustness and reliability for the CG uplink transmission. For example, if the first TRP 240-a at the base station 105-a is blocked through an object (such as a tree, a moving car, a building, among other examples) or if the first TRP 240-a experiences interference (such as interference from signaling from other UEs 115 or self-interference), the base station 105-a may decode the uplink transmission on the second TRP 240-b, increasing the uplink reception reliability at the base station 105-a. In some examples, TRP 240-b may be located in a secondary base station 105 and UE 115-a may transmit CG uplink transmissions to multiple base stations 105. In other words, TRP 240-a and TRP 240-b may be located in the same (or nearly the same) physical location or may be located in different physical locations without departing from the scope of this disclosure.

[0085]

[0091] Additionally or alternatively, the UE 115-a may transmit a CG uplink transmission with repetition. In some examples, the UE 115-a may receive (from the base station 105-a, e.g., via RRC signaling or DCI) signaling indicating a type of repetition that the UE 115-a may use to transmit a CG uplink transmission, such as type A repetition or type B repetition. In an example where the UE 115-a receives signaling indicating type A repetition, the UE 115-a may transmit over different CG uplink transmission opportunities corresponding to the same transport block, where the different CG uplink transmission opportunities may be in different slots. In an example where the UE 115-a receives signaling indicating type B repetition, the UE 115-a may transmit different CG uplink transmission opportunities corresponding to the same transport block, where the different CG uplink transmission opportunities may be in different minislots (where the symbol size or duration may be smaller than a slot).

[0086]

[0092] The base station 105-a may configure the amount of repetition for the CG uplink transmission dynamically via RRC signaling or via DCI (e.g., via a time domain resource allocation (TDRA) field that is part of the DCI message). In some cases, the UE 115-a may transmit repetitions of the CG uplink transmission using the same beam 230. For example, the UE 115-a may transmit repetitions of the CG uplink transmission using the beam 230-a, and the base station 105-a may receive repetitions of the CG uplink transmission sent using the beam 230-a in a single TRP 240 (or, in some examples, may attempt to receive a single beam transmission in multiple TRPs 240). In such examples where the UE 115-a transmits repetitions of the CG uplink transmission via the same beam 230, the UE 115-a may transmit the repetitions of the CG uplink transmission using the same set of transmit power control parameters.

[0087]

[0093] In some other cases, when the base station 105-a intends to receive different uplink repetitions at different TRPs 240, different panels, or different antennas, the base station 105-a may configure the UE 115-a to use multiple beams 230 (such as beam 230-a and beam 230-b) and multiple sets of power control parameters. For example, a repetition of a CG uplink transmission may belong to or be associated with multiple (e.g., two) SRS resource sets 235, and each SRS resource set 235 may be associated with a beam 230 and a set of power control parameters. In other words, the scheduled or configured repetition of a CG uplink transmission may be partitioned into two separate sets of repetitions, and the two sets of repetitions may correspond to the two SRS resource sets 235 (such that each set of repetitions corresponds to a different SRS resource set 235 and thus a different beam 230 and a different set of power control parameters). As described herein, SRS resource set 235-a may be associated with beam 230a and a first set of power control parameters, and SRS resource set 235-b may be associated with beam 230-b and a second set of power control parameters. In some examples, as a result of the correspondence between the two sets of repetitions and the two SRS resource sets 235, base station 105-a may indicate the two beams 230 and / or the two sets of power control parameters for the two sets of repetitions by two corresponding SRI fields in a DCI message (e.g., a retransmission scheduling DCI for type 1 CG).

[0088]

[0094] In some deployments, for example, the UE 115-a and base station 105-a may support dynamic switching between single TRP (sTRP) and multiple TRP (mTRP) operation, and the UE 115-a and base station 105-a may exploit the correspondence between the two sets of repetitions and the two SRS resource sets 235 for the dynamic switching. In such deployments, the base station 105-a may alternate between sTRP-based reception of PUSCH transmissions and mTRP-based reception of PUSCH transmissions, which may include indicating to the UE 115-a to use one SRS resource set 235 for sTRP operation and two SRS resource sets 235 for mTRP operation. To achieve such dynamic switching between sTRP and mTRP operation for PUSCH transmission, the base station 105-a may transmit to the UE 115-a a DCI message including a bit field for dynamic switching indicating which SRS resource set 235 and corresponding set of power control parameters to use for different repetitions of the PUSCH transmission.

[0089]

[0095] For example, the bit field for dynamic switching may have a size of two bits and may indicate one of four configurations for PUSCH transmission (e.g., for two sets of repetitions of PUSCH transmission). If the bit field for dynamic switching has a value "00", the UE 115-a may use the SRS resource set 235-a associated with the first set of power control parameters and the beam 230-a for the PUSCH transmission (e.g., for each repetition of PUSCH transmission). In such an example in which the UE 115-a uses the first set of power control parameters and the beam 230-a for the repetition of PUSCH transmission, the base station 105-a may receive the repetition of PUSCH transmission via one TRP 240 (such as TRP 240-a). Alternatively, if the bit field for dynamic switching has a value "01", the UE 115-a may use the SRS resource set 235-b associated with the second set of control parameters and the beam 230-b for the PUSCH transmission (e.g., for each repetition of the PUSCH transmission). In such an example in which the UE 115-a uses the second set of power control parameters and the beam 230-b for the repetition of the PUSCH transmission, the base station 105-a may receive the repetition of the PUSCH transmission via one TRP 240 (such as TRP 240-b).

[0090]

[0096] Alternatively, if the bit field for dynamic switching has a value "10", the UE 115-a may alternate between the SRS resource set 235-a and the SRS resource set 235-b for the repetition of the PUSCH transmission according to the first ordering pattern. For example, the UE 115-a may use the first set of power control parameters and the beam 230-a for the first one or more instances of the PUSCH transmission and may use the second set of power control parameters and the beam 230-b for the second one or more instances of the PUSCH transmission. In such an example, the base station 105-a may receive the first one or more instances of the repetition of the PUSCH transmission via the TRP 240-a and may receive the second one or more instances of the repetition of the PUSCH transmission via the TRP 240-b. Alternatively, if the bit field for dynamic switching has a value "11", the UE 115-a may alternate between the SRS resource set 235-a and the SRS resource set 235-b according to a second ordering pattern. For example, the UE 115-a may use the second set of power control parameters and the beam 230-b for a first one or more instances of PUSCH transmission and may use the first set of power control parameters and the beam 230-a for a second one or more instances of PUSCH transmission. In such an example, the base station 105-a may receive the first one or more instances of repetition of PUSCH transmission via the TRP 240-b and may receive the second one or more instances of repetition of PUSCH transmission via the TRP 240-a. Such ordering patterns and transmission mappings are described in more detail with reference to FIG. 3.

[0091]

[0097] To support an extension of PUSCH repetition with two beams 230 and two sets of power control parameters for CG uplink transmissions (e.g., to CG-PUSCH transmissions), the base station 105-a may further configure a second set of power control parameters for the UE 115-a via RRC signaling. In other words, the base station 105-a may configure the UE 115-a with a first set of power control parameters for beam 230-a (which may both be associated with SRS resource set 235-a) and a second set of power control parameters for beam 230-b (which may both be associated with SRS resource set 235-b) via RRC signaling. For example, the base station 105-a may include a second pathlossReferenceIndex parameter, a second srs-ResourceIndicator parameter, and a second precodingAndNumberOfLayers parameter in the rrc-ConfiguredUplinkGrant parameter, and may include a second p0-PUSCH-Alpha parameter and a second powerControlLoopToUse parameter in the ConfiguredGrantConfig parameter.

[0092]

[0098] For Type 1 CG, the base station 105a may configure and activate SRS resource sets 235 for CG uplink transmissions from the UE 115a via RRC signaling. For example, the CG configuration 205 may configure the UE 115a with one or more SRS resource sets 235 and associated transmission parameters (e.g., sets of power control parameters), and the CG configuration 205 may also activate the use of such SRS resource sets 235 for CG uplink transmissions. In such an example, the base station 105a may refrain from transmitting a DCI message activating the SRS resource sets 235.

[0093]

[0099] In some examples, the base station 105-a may provide the information possibly indicated in the SRI field (e.g., in the DCI message) using one or more RRC parameters. For example, the base station 105-a may transmit the SRI, precoding information, or rank using RRC parameters such as the srs-ResourceIndicator parameter (for SRI) and the precodingAndNumberOfLayers parameter (for precoding information and rank), among other examples.

[0094]

[0100] However, in some cases, the UE 115-a may have difficulty in determining which SRS resource set 235 to use when interpreting the RRC parameters. That is, when applying a CG uplink transmission-related RRC parameter to one or more uplink transmissions, it may be difficult to determine which SRS resource set 235 to use. For example, when interpreting the srs-ResourceIndicator parameter, it may be ambiguous for the UE 115-a whether to use the first SRS resource set 235-a or the second SRS resource set 235-b. Similarly, in the case of the precodingAndNumberOfLayers parameter, the UE 115-a may have difficulty in determining which SRS resource set 235 to use, since the interpretation of such a parameter may depend on the amount of SRS ports and the selected SRS resources.

[0095]

[0101] In some examples, the UE 115-a may be configured to determine which SRS resource set 235 to use when interpreting the CG configuration 205. For example, the base station 105-a may configure the UE 115-a with two SRS resource sets 235 (e.g., for codebook and non-codebook PUSCH transmissions), and in some examples, the base station 105-a may refrain from configuring a second field in the RRC signaling. For example, the base station 105-a may use an sTRP configuration or any other configuration in which the base station 105-a may refrain from configuring the UE 115-a with a second srs-ResourceIndicator field and a second precodingAndNumberOfLayers field in the rrc-ConfiguredUplinkGrant field. In such examples, the UE 115-a may associate a first srs-ResourceIndicator field and a first precodingAndNumberOfLayers field with the first SRS resource set 235-a. In such an example, the first SRS resource set 235-a may be the SRS resource set 235 with a lower SRS resource set ID. Additionally or alternatively, the base station 105-a may include a field in the rrc-ConfiguredUplinkGrant field that may indicate which SRS resource set 235 may be associated with the first srs-ResourceIndicator field and the first precodingAndNumberOfLayers field. In other words, the base station 105-a may include an additional field in the RRC signaling that indicates to the UE 115-a whether to use the first SRS resource set 235-a or the second SRS resource set 235-b when interpreting the RRC signaling (e.g., the first srs-ResourceIndicator field and the first precodingAndNumberOfLayers field).In another example, the base station 105-a may configure the UE 115-a with two SRS resource sets 235 (e.g., for codebook and non-codebook PUSCH transmissions), and in some examples, the base station 105-a may configure a second field in the RRC signaling. For example, the base station 105-a may use an mTRP configuration or any other configuration in which the base station 105-a may configure the UE 115-a with a second srs-ResourceIndicator field and a second precodingAndNumberOfLayers field in an rrc-ConfiguredUplinkGrant field. In such an example, the UE 115-a may determine that the first SRS resource set 235-a corresponds to the first srs-ResourceIndicator field and the first precodingAndNumberOfLayers field, and the second SRS resource set 235-b corresponds to the second srs-ResourceIndicator field and the second precodingAndNumberOfLayers field.

[0096]

[0102] If the UE 115-a may be configured with both a first srs-ResourceIndicator and precodingAndNumberOfLayers parameter and a second srs-ResourceIndicator and precodingAndNumberOfLayers parameter, the UE 115-a may be configured to use a particular mapping between uplink transmissions and SRS resource sets 235 when transmitting uplink repetitions to the base station 105-a. For example, the UE 115-a may be configured according to a fixed order of uplink repetitions. That is, the UE 115-a may transmit a first uplink repetition using the first SRS resource set 235-a and may transmit the remaining uplink repetitions according to an RRC configured mapping type, e.g., cyclic mapping (e.g., 1212), continuous mapping (e.g., 1122), or any other mapping type. In another example, the UE 115-a may receive an RRC configuration (e.g., in the rrc-ConfiguredUplinkGrant) that may indicate an order of SRS resource sets 235 associated with transmitting uplink repetitions. For example, the base station 105-a may transmit an additional RRC configuration (e.g., an additional field) that indicates whether a first uplink repetition in time may be associated with the first SRS resource set 235-a or the second SRS resource set 235-b. In yet another example, the UE 115-a may receive an RRC message that indicates one of four possible mapping configurations (e.g., dynamic switching possibilities described with reference to FIG. 3B). That is, the base station 105-a may transmit an additional RRC configuration to the UE 115-a that indicates one of the four mapping configurations.

[0097]

[0103] Configuring a UE 115 with the present techniques may enable such a UE 115 to determine which SRS resource set 235 to use when interpreting CG uplink transmission related RRC parameters. Allowing a device to determine which SRS resource set 235 to use when interpreting RRC parameters may improve synchronization between communicating devices, reduce system latency, and decrease power consumption.

[0098]

[0104] FIG. 3A illustrates an example of a wireless communication system 300 supporting SRI association for CG-based TRP PUSCH transmission according to an aspect of the disclosure. The wireless communication system 300 may be implemented to implement or realize aspects of the wireless communication system 100 and the wireless communication system 200. For example, the wireless communication system 300 may illustrate communication between a UE 115-b and a base station 105-b, which may be an example of a corresponding device, including references to FIG. 1 and FIG. 2. The base station 105-b may configure the UE 115-b with a CG configuration 305-a for multiple CG uplink transmissions 325 using multiple beams 330 with corresponding power control parameters 335 that transmit uplink data to multiple TRPs 340 at the base station 105-b. In some examples, the CG configuration 305-a, which may be an example of a CG configuration 205 described with reference to FIG. 2, may indicate one or more SRS resource set configurations that the UE 115-b should use. Accordingly, the UE 115-b may follow techniques to determine which SRS resource set to use when transmitting each CG uplink transmission 325.

[0099]

[0105] In an example wireless communication system 300, the UE 115-b may transmit repetitions, such as four repetitions, of the CG uplink transmission 325 and may alternate between transmitting the CG uplink transmission 325 to the TRP 340-a using a first SRS resource set corresponding to the first set of control parameters 335-a and the first beam 330-a and transmitting the CG uplink transmission 325 to the TRP 340-b using a second SRS resource set corresponding to the second set of control parameters 335-b and the second beam 330-b.

[0100]

[0106] In some examples, the CG configuration 305-a message may also indicate a beam mapping pattern for the CG uplink transmission 325, such as a cyclic beam mapping pattern 310 or a continuous beam mapping pattern 315, and the UE 115-b may transmit the CG uplink transmission according to the beam mapping pattern. In such an example, the UE 115-b may receive the beam mapping via RRC signaling. In an example where the CG configuration 305-a indicates a cyclic beam mapping pattern 310, the UE 115-b may alternate between the first SRS resource set and the second SRS resource set. In other words, the UE 115-b may alternate between the first SRS resource set and the second SRS resource set after each CG uplink transmission 325 opportunity. For example, UE 115-b may transmit CG uplink transmission 325-a and CG uplink transmission 325-c to TRP 340-a using a first SRS resource set, and may transmit CG uplink transmission 325-b and CG uplink transmission 325-d to TRP 340-b using a second SRS resource set.

[0101]

[0107] In an example where the CG configuration 305-a exhibits a continuous beam mapping pattern 315, the UE 115-b may continuously transmit some first amount, such as a first half of the CG uplink transmissions 325 using a first SRS resource set, and may switch to transmit some second amount, such as a second half of the CG uplink transmissions 325 using a second SRS resource set. In some implementations, the first amount may be the same as the second amount (e.g., each may be half of the CG uplink transmissions 325 and the amount of repetitions for the CG uplink transmissions 325 may be an even amount). In some other implementations, the first amount may be different from the second amount (e.g., the first amount may be a larger or smaller amount of CG uplink transmissions 325 compared to the second amount). For example, UE 115-b may transmit CG uplink transmission 325-e and CG uplink transmission 325-f to TRP 340-a using a first SRS resource set, and may transmit CG uplink transmission 325-g and CG uplink transmission 325-h to TRP 340-b using a second SRS resource set.

[0102]

[0108] In some cases, the UE 115-b may have difficulty determining which SRS resource set to use when interpreting the RRC parameters included in the CG configuration 305-a. For example, it may be ambiguous for the UE 115-b whether to use the first SRS resource set or the second SRS resource set when interpreting a parameter such as the srs-ResourceIndicator parameter. Similarly, for another parameter such as the precodingAndNumberOfLayers parameter, the UE 115-b may have difficulty in determining the SRS resource set to use, since the interpretation of such a parameter may depend on the amount of SRS ports and the selected SRS resources. Furthermore, the difficulty may increase when the base station 105-b configures the UE 115-b with other parameters such as the second srs-ResourceIndicator parameter and the second precodingAndNumberOfLayers parameter (e.g., when the base station 105-b uses an mTRP configuration).

[0103]

[0109] In some examples, the UE 115-b may use techniques described herein to determine which SRS resource set to use when interpreting the CG configuration 305-a and the appropriate mapping pattern according to the CG configuration 305-a. For example, the base station 105-b may configure the UE 115-b with a first parameter, such as a first srs-ResourceIndicator parameter and a first precodingAndNumberOfLayers parameter, but refrain from configuring the UE 115-b with a second parameter, such as a second srs-ResourceIndicator parameter and a second precodingAndNumberOfLayers parameter. In such examples, the UE 115-b may associate a first SRS resource set (e.g., the SRS resource set with the lowest SRS resource set ID) with the first srs-ResourceIndicator parameter and the first precodingAndNumberOfLayers parameter and may interpret such parameters therewith. In another example, the base station 105-b may add an indication in the RRC signaling, such as a field indicating which SRS resource set is associated with one or more parameters, such as the first srs-ResourceIndicator parameter and the first precodingAndNumberOfLayers parameter. That is, the base station 105-b may transmit an RRC indication (e.g., along with other RRC signaling) or additional RRC configuration (e.g., in an rrc-ConfiguredUplinkGrant field of the CG configuration 305-a) that indicates (e.g., points to) the first SRS resource set or the second SRS resource set (e.g., an SRS resource set with a higher SRS resource set ID) that the UE 115-b may use when interpreting one or more parameters, such as the first srs-ResourceIndicator parameter and the first precodingAndNumberOfLayers parameter.Further, in various examples, the UE 115-b may transmit a CG uplink transmission 325 using a cyclic beam mapping pattern 310, a continuous beam mapping pattern 315, or any other mapping pattern defined in the UE 115-b (e.g., preconfigured in the UE 115-b) or signaled by the base station 105-b, or any combination thereof.

[0104]

[0110] In some examples, the base station 105-b may configure the UE 115-b with multiple parameters, such as a first srs-ResourceIndicator parameter, a first precodingAndNumberOfLayers parameter, a second srs-ResourceIndicator parameter, and a second precodingAndNumberOfLayers parameter. In such examples, the UE 115-b may associate a first SRS resource set (e.g., a resource set with a relatively lower SRS resource set ID) with one or more parameters, such as a first srs-ResourceIndicator parameter and a first precodingAndNumberOfLayers parameter, and may associate a second SRS resource set (e.g., with a higher SRS resource set ID) with one or more parameters, such as a second srs-ResourceIndicator parameter and a second precodingAndNumberOfLayers parameter. In some examples, the UE 115-b may be configured with a fixed repetition order. For example, the UE 115-b may transmit the first CG uplink transmission 325 using the first SRS resource set, and the UE 115-b may transmit the remaining (e.g., three) CG uplink transmissions according to a fixed beam mapping type, such as a cyclic beam mapping pattern 310 or a continuous beam mapping pattern 315. Additionally or alternatively, the base station 105-b may add an additional RRC configuration to the CG configuration 305-a indicating a particular order of PUSCH repetitions. In other words, the base station 105-b may transmit the CG configuration 305-a with an additional field (e.g., in the rrc-ConfiguredUplinkGrant) indicating which SRS resource set the first PUSCH repetition may correspond to. For example, the base station 105-b may indicate that the UE 115-b may transmit the first CG uplink transmission 325 using the second SRS resource set.The UE 115-b may then transmit the remaining CG uplink transmission 325 according to the cyclic beam mapping pattern 310, the continuous beam mapping pattern 315, or any other mapping pattern.

[0105]

[0111] FIG. 3B illustrates an example of a wireless communication system 301 supporting SRI association for CG-based TRP PUSCH transmission according to aspects of the disclosure. The wireless communication system 301 may be implemented to implement or realize aspects of the wireless communication system 100, the wireless communication system 200, or the wireless communication system 300. For example, the wireless communication system 301 may illustrate communication between a UE 115-c and a base station 105-c, which may be an example of a corresponding device, including references to FIG. 1, FIG. 2, and FIG. 3A. The base station 105-c may configure the UE 115-c with a CG configuration 305-c for multiple CG uplink transmissions 325 using multiple beams 330 with corresponding power control parameters 335 that transmit uplink data to multiple TRPs 340 at the base station 105-c. In some examples, the CG configuration 305-b, which may be an example of the CG configuration 305-a described with reference to FIG. 3A, may indicate one or more SRS resource set configurations that the UE 115-c should use. Accordingly, the UE 115-c may follow a technique to determine which SRS resource set to use when transmitting each CG uplink transmission 325.

[0106]

[0112] In an example of the wireless communication system 301, the UE 115-c may transmit repetitions, such as four repetitions, of the CG uplink transmission 325 and may alternate between transmitting the CG uplink transmission 325 to the TRP 340-c using a first SRS resource set corresponding to the first set of control parameters 335-c and the first beam 330-c and transmitting the CG uplink transmission 325 to the TRP 340-d using a second SRS resource set corresponding to the second set of control parameters 335-d and the second beam 330-d.

[0107]

[0113] In some examples, the base station 105-c may configure the UE 115-c with a limited amount, e.g., four, dynamic switching possibilities 345 that the UE 115-c may use to determine which SRS resource set to use in transmitting each CG uplink transmission 325. To inform the UE 115-c of such dynamic switching possibilities 345, the base station 105-c may transmit the CG configuration 305-b with an additional field (e.g., in the rrc-ConfiguredUplinkGrant) indicating one of the potential limited amount of dynamic switching possibilities 345 (e.g., one of the four dynamic switching possibilities 345).

[0108]

[0114] For example, the UE 115-c may be configured with four dynamic switching possibilities 345, each associated with a respective transmission pattern that instructs the UE 115-c to transmit one or more CG uplink transmissions 325 to one or more TRPs 340 consecutively (e.g., using an SRS resource set associated with the power control parameter 335). In some examples, the base station 105-c may indicate one of the four potential dynamic switching possibilities 345 using a field such as a two-bit field. That is, the base station 105-c may transmit two bits corresponding to one of the four potential dynamic switching possibilities 345 in an additional field. Each dynamic switching possibility 345 may correspond to a particular transmission pattern. For example, the base station 105-c may transmit the CG configuration 305-b with an additional field having a value of "10", which may indicate that the UE 115-c may use the dynamic switching possibility 345-a. Thus, the UE 115-c may use the power control parameter 335-c for the CG uplink transmission 325-i and the CG uplink transmission 325-k and may transmit the CG uplink transmission 325-i and the CG uplink transmission 325-k toward the TRP 340-c. In such an aspect, the UE 115-c may use the power control parameter 335-d for the CG uplink transmission 325-j and the CG uplink transmission 325-l and may transmit the CG uplink transmission 325-j and the CG uplink transmission 325-l toward the TRP 340-d. In some examples, the base station 105-c may transmit the CG configuration 305-d with an additional field having a value of "11", which may indicate that the UE 115-c may use the dynamic switchability 345-b. Thus, the UE 115-c may use the power control parameters 335-d for the CG uplink transmission 325-m and the CG uplink transmission 325-o and may transmit the CG uplink transmission 325-m and the CG uplink transmission 325-o toward the TRP 340-d.In such an example, the UE 115-c may use the power control parameter 335-c for the CG uplink transmission 325-n and the CG uplink transmission 325-p and may transmit the CG uplink transmission 325-n and the CG uplink transmission 325-p toward the TRP 340-c. In some implementations, the base station 105-c may transmit the CG configuration 305-b with an additional field having a value of "01" that may indicate that the UE 115-c may use the dynamic switchability 345-c. Thus, the UE 115-c may transmit the CG uplink transmission 325-q, the CG uplink transmission 325-r, the CG uplink transmission 325-s, and the CG uplink transmission 325-t toward the TRP 340-b using the power control parameter 335-d. In other words, the UE 115-c may transmit the CG uplink transmission toward the TRP 340-b using only the power control parameter 335-d and the associated SRS resource set. In some examples, the base station 105-c may transmit a CG configuration 305-b with an additional field having a value of “00”, which may indicate that the UE 115-c may use the power control parameter 335-c and may transmit a CG uplink transmission 325 toward the TRP 340-a.

[0109]

[0115] It may be understood that any CG configuration 305 may include any pattern of mapping SRS resource sets to respective CG uplink transmissions 325. Additionally, the UE 115 may be configured with any amount of CG uplink transmissions 325, the dynamic switchability 345 may correspond to any SRS resource set mapping order, the dynamic switchability 345 may be associated with any amount of TRPs 340, and the additional field may include any amount of bits.

[0110]

[0116] FIG. 4 illustrates an example of a process flow 400 supporting SRI association for CG-based TRP PUSCH transmissions according to aspects of the disclosure. The operations of process flow 400 may be implemented by a wireless device, such as a UE, among other options. For example, the operations of process flow 400 may be performed by a UE, as described with reference to FIGS. 1-3B. In some examples, the UE may be configured to use multiple SRS resource sets when communicating with other devices. Thus, the UE may use or otherwise reference process flow 400 when determining which SRS resource set to use when interpreting an RRC configuration, and when determining uplink transmission mappings (e.g., CG uplink transmissions), among other examples. The following alternative examples may be implemented, in which some steps are performed in a different order or not at all. In addition, some steps may include additional features not mentioned below.

[0111]

[0117] At 405, the UE may receive a first control signaling. In some examples, the first control signaling may indicate a first SRS resource set associated with a first set of power control parameters and a second SRS resource set associated with a second set of power control parameters. In some examples, the first control signaling may be RRC signaling from the base station. In such examples, the first control signaling may indicate an association of the first SRS resource set with a first TRP and an association of the second SRS resource set with a second TRP.

[0112]

[0118] At 410, the UE may receive second control signaling. In some examples, the second control signaling may indicate a CG configuration that the UE may use or reference when transmitting uplink information (e.g., a CG uplink transmission). The first set of power control parameters and the second set of power control parameters may be associated with a transmission corresponding to the CG configuration. In some examples, the CG configuration may include an indication of a fixed mapping pattern, a mapping pattern order, or another configured mapping pattern (e.g., one mapping pattern out of four possible mapping patterns), or any combination thereof, as described with reference to FIG. 2 and FIG. 3. In some examples, the second control signaling may be RRC signaling, such as RRC signaling including the first control signaling. In some examples, the second control signaling may be RRC signaling, such as RRC signaling separate from the RRC including the first control signaling.

[0113]

[0119] At 415, the UE may determine a configuration state of at least some, if not each, of one or more fields in the RRC signaling, such as the first control signaling or the second control signaling. In particular, the UE may determine whether a second RRC field is configured in the configuration signaling from the base station. For example, the UE may determine whether an RRC field, such as a second srs-ResourceIndicator field and a second precoderAndNumberOfLayers field, is configured in the control signaling, as described with reference to FIG. 2 and FIG. 3.

[0114]

[0120] In some examples, the UE may determine that such second RRC field is not configured in the configuration signaling from the base station. Thus, at 420, the UE may determine whether a third control signaling is received. In some examples, the third control signaling may indicate (e.g., explicitly) whether the UE should use the first SRS resource set or the second SRS resource set when interpreting an RRC field such as the first srs-ResourceIndicator field and the first precoderAndNumberOfLayers field. In such examples, the UE may receive the third control signaling at 425 and may use the indicated SRS resource set when interpreting the first field (e.g., the first srs-ResourceIndicator field and the first precoderAndNumberOfLayers field). In some examples, the first control signaling, the second control signaling, or both may include the third control signaling. For example, the third signaling may be communicated as part of one or both of the first control signaling or the second control signaling. In some examples, the first control signaling, the second control signaling, or both may not include the third control signaling. For example, the third signaling may be communicated separately from both the first control signaling and the second control signaling. Alternatively, the UE may fail to receive the third control signaling. Thus, at 430, the UE may select the first SRS resource set (e.g., the SRS resource set associated with a lower or lowest SRS resource set ID) when interpreting the first RRC field. For example, the UE may be configured to use a particular SRS resource set, such as an SRS resource set with a lowest SRS resource set ID, when interpreting the first field if the UE determines that the second field is not configured in the configuration signaling from the base station.

[0115]

[0121] In some examples, the UE may determine that the second RRC field is configured in the configuration signaling from the base station. Thus, at 435, the UE may determine an association between the RRC field and the SRS resource set. In some examples, the UE may be configured to associate a particular SRS resource set with a particular RRC field. For example, the UE may determine that a first RRC field, such as a first srs-ResourceIndicator field and a first precoderAndNumberOfLayers field, is associated with a first SRS resource set (e.g., a lower SRS resource set ID) and a second RRC field, such as a second srs-ResourceIndicator field and a second precoderAndNumberOfLayers field, is associated with a second SRS resource set (e.g., a higher SRS resource set ID). In other examples, the UE may determine that a first RRC field is associated with an SRS resource set with a higher SRS resource set ID and a second RRC field is associated with an SRS resource set with a lower SRS resource set ID.

[0116]

[0122] At 440, the UE may determine whether the CG configuration and the SRS resource set are associated with a mapping order, such as a fixed uplink transmission mapping order. That is, the UE may be configured to select an SRS resource set for one or more transmissions (e.g., CG uplink transmissions), and selecting the SRS resource set may be based on a fixed order for the one or more transmissions. For example, the UE may be configured with a fixed mapping pattern, such as a cyclic mapping pattern, a sequential mapping pattern, or any other mapping pattern, such that the UE may select a first SRS resource set for a first set of transmissions and a second SRS resource set for a second set of transmissions. In some examples, the base station may configure the UE with a fixed order (e.g., through RRC signaling) or the UE may be pre-configured with a fixed order.

[0117]

[0123] In some examples, the UE may determine that the CG configuration and the SRS resource set are associated with a fixed uplink transmission mapping order. In such examples, at 450, the UE may select a first SRS resource set for the first transmission. For example, when selecting an SRS resource set based on a fixed order for the one or more transmissions, the UE may select a first SRS resource set for the first transmission at the time of the one or more transmissions. The UE may select the first SRS resource set or the second SRS resource set for one or more second (e.g., remaining) transmissions at the time of the one or more transmissions according to a mapping type. In some examples, the mapping type may be a cyclic mapping of the first SRS resource set and the second SRS resource set (e.g., a cyclic beam mapping pattern). In other examples, the mapping type may be a continuous mapping of the first SRS resource set and the second SRS resource set (e.g., a continuous beam mapping pattern). However, in some examples, before selecting the first SRS resource set for the first transmission at 445, the UE may receive a third control signaling. In some examples, the third control signaling may have a field indicating that the first transmission at a time may be associated with either the first SRS resource set or the second SRS resource set, such that the UE may determine which SRS resource set to use for the first transmission according to the third control signaling. Thus, transmitting one or more transmissions and the transmission mapping of the SRS resource sets may be based on the third control signaling. For example, the third control signaling may indicate to the UE to use the second SRS resource set when transmitting the first transmission. In this example, the UE may be configured to use cyclic mapping, and the UE may transmit the second transmission using the first SRS resource set and transmit the third transmission using the second SRS resource set, and so on.

[0118]

[0124] In some examples, the UE may determine that the CG configuration and the SRS resource set are not associated with a fixed uplink transmission mapping order (e.g., the CG configuration or the SRS resource set or both are associated with different uplink transmission mapping orders or are not associated with an uplink transmission mapping order). In such examples, at 455, the UE may receive a third control signaling from the base station. In some examples, the third control signaling may have an indication, such as a field, indicating one of a fixed set of preconfigured mapping options associated with one or both of the first SRS resource set or the second SRS resource set. In some examples, the fixed set of preconfigured mapping options may include one or more of a first transmission at a time of one or more transmissions associated with the first SRS resource set and a second transmission at a time of one or more transmissions associated with the second SRS set. That is, the first transmission may correspond to the first SRS resource set and the second transmission may correspond to the second SRS resource set. In some examples, the fixed set of preconfigured mapping options may include a first transmission at a time of one or more transmissions associated with the second SRS resource set and a second transmission at a time of one or more transmissions associated with the first SRS resource set. That is, the first transmission may correspond to the second SRS resource set and the second transmission may correspond to the first SRS resource set. In some examples, the fixed set of preconfigured mapping options may include one or more transmissions associated with the first SRS set or one or more transmissions associated with the second SRS resource set. Such mapping options may be mapped to one or more representations, such as one or more binary representations. For example, the fixed set of preconfigured mapping options may include four mapping options, where each mapping option may correspond to a respective binary representation (e.g., a two-bit representation such as 00, 01, 10, or 11).The preconfigured mapping options may be examples of the dynamic switching possibilities described with reference to Figure 3B. In such an example, the base station 105-b may include binary representations associated with the mapping options in respective fields in the third control signaling such that the UE may determine 460 the dynamic switching possibilities.

[0119]

[0125] FIG. 3 illustrates an example of a process flow 300 supporting SRI association for CG-based TRP PUSCH transmissions according to aspects of the disclosure. In some examples, the process flow 300 may implement aspects of the wireless communication systems 100, 200, or 300, as described with reference to FIGS. 1-3B, respectively. For example, the UE 115-d and the base station 105-d, which may be examples of corresponding devices described with reference to FIGS. 1, 2, 3A, and 3B, may communicate using one or more communication links, over which the base station 105-d may transmit control information configuring one or more uplink transmissions from the UE 115-d. In some examples, the UE 115-d may be configured to use multiple SRS resource sets when interpreting such control information, and the UE 115-d may experience difficulty in determining which SRS resource set to use when interpreting a particular control parameter. The UE 115-d may be configured to determine which SRS resource set to use when interpreting control information from the base station 105-c. For example, the UE 115-d may be configured to use or otherwise reference the process flow 400 when determining which SRS resource set to use.

[0120]

[0126] At 505, the base station 105-d may transmit, and the UE 115-d may receive, first control signaling including an indication of a first SRS resource set and a second SRS resource set associated with a first set of power control parameters and a second set of power control parameters, respectively. The base station 105-d may transmit the first control signaling as or within RRC signaling.

[0121]

[0127] At 510, the base station 105-d may transmit, and the UE 115-d may receive, a second control signaling including an indication of a CG configuration, such as the CG configuration 205 or the CG configuration 305 described with reference to FIG. 2, FIG. 3A, and FIG. 3B, respectively. In such an example, the first set of power control parameters and the second set of power control parameters may be for a transmission configured by the CG configuration. In some examples, receiving the second control signaling indicating the CG configuration may include receiving the second control signaling indicating the CG PUSCH configuration. Additionally or alternatively, the CG configuration includes a type 1 CG PUSCH configuration. In some examples, the base station 105-d may transmit the second control signaling as or within the RRC signaling, and in some examples, the base station 105-d may transmit the second control signaling within the same RRC signaling as the first control signaling. The one or more fields in the RRC signaling include one or more of an SRS resource indicator field (e.g., srs-ResourceIndicator), a precoding and number of layers field (e.g., precodingAndNumberOfLayers), or a pathloss reference index field (e.g., pathlossReferenceIndex).

[0122]

[0128] In some examples, the base station 105-d may transmit, and the UE 115-d may receive, third control signaling, at 415, that may indicate which fields are associated with which SRS resource sets or one or more mapping options, among other examples. The third control signaling may help the UE 115-d determine which SRS resource sets to use when interpreting control signaling from the base station 105-d, such as, for example, the third control signaling in process flow 400 described with reference to FIG.

[0123]

[0129] At 520, the UE 115-d may determine a configuration state for each of one or more fields in the RRC signaling from the base station 105-d based on receiving the first control signaling at 505, receiving the second control signaling at 510, or a combination thereof. For example, the UE 115-d may determine whether one or more second fields (e.g., the second srs-ResourceIndicator and the second precodingAndNumberOfLayers) are configured in the RRC signaling. In some examples, the UE 115-d may determine that the second fields are not configured in the RRC signaling, for example, according to the base station 105-d using the sTRP configuration. Thus, the UE 115-d may determine to use the first SRS resource set if it interprets one or more first fields (e.g., the first srs-ResourceIndicator and the first precodingAndNumberOfLayers). Additionally or alternatively, the UE 115-d may receive 415 a third control signaling indicating which SRS resource set to use when interpreting the one or more first fields. In another example, the UE 115-d may determine that the second field is configured in the RRC signaling, for example, according to the base station 105-d using the mTRP configuration. Thus, the UE 115-d may associate the first SRS resource set with the first field and the second SRS resource set with the second field.

[0124]

[0130] At 525, the UE 115-d may select an SRS resource set from the first SRS resource set or the second SRS resource set based on, for example, the configuration state of each of one or more fields in the RRC signaling determined at 520. In some examples, the UE 115-d may select an SRS resource set based on whether the second field in the RRC signaling is configured. For example, if the UE 115-d determines that the second field is not configured, the UE 115-d may determine to use the first SRS resource set when interpreting the first field. Additionally or alternatively, the UE 115-d may use the SRS resource set indicated in the third control signaling at 515 when interpreting the first field. In another example, the UE 115-d may determine that the second field is configured. In such an example, the UE 115-d may select an SRS resource set based on a fixed order for one or more uplink transmissions scheduled by the CG configuration. In some examples, the UE 115-d may determine a fixed order of one or more uplink transmissions, and each uplink transmission may be transmitted using a respective SRS resource set. For example, the UE 115-d may be configured to use a cyclic mapping pattern when transmitting one or more uplink transmissions, and the UE 115-d may select an SRS resource set based on a fixed order specified in the cyclic mapping pattern. The UE 115-d may be configured to select a first SRS resource set when transmitting one or more uplink transmissions. Additionally or alternatively, the base station 105-d may include a field in the third control signaling at 415 indicating that a first transmission at a time of the one or more uplink transmissions may be associated with the first SRS resource set or the second SRS resource set, and the UE 115-d may select an SRS resource set based on the field in the third control signaling.In some examples, the UE 115-d may select an SRS resource set based on an indication of one of a fixed set of preconfigured mapping options. For example, the base station 105-d may include a field indicating one of a fixed set of preconfigured mapping options associated with one or both of the first SRS resource set or the second SRS resource set. The UE 115-d may then select the indicated mapping option and the respective SRS resource set based thereon. The selection of mapping options and SRS resource sets is described in more detail with reference to FIG. 4.

[0125]

[0131] At 530, the UE 115-d may transmit one or more uplink transmissions to the base station 105-d in an order corresponding to the determined mapping pattern and according to the selected SRS resource set. For example, the UE 115-d may start with the SRS resource set selected at 525 and transmit four CG uplink PUSCH repetitions according to a mapping pattern fixed at the UE 115-d or indicated by the base station 105-d.

[0126]

[0132] Configuring the UE 115 to use the techniques described with reference to process flow 300 may alleviate difficulties in interpreting RRC parameters, for example, when the UE 115 is configured to use multiple SRS resource sets. That is, a UE 115 configured according to the techniques described herein may determine an SRS resource set to use when interpreting one or more fields (e.g., first and second srs-ResourceIndicator and precoderAndNumberOfLayers) and a mapping pattern to use when sending an uplink transmission. Such techniques may provide for quicker decision making at the UE 115-d, enhanced synchronization between communicating devices, reduced system latency, among other examples.

[0127]

[0133] 4 illustrates a block diagram of a device 405 supporting SRI association for CG-based TRP PUSCH transmission according to an aspect of the disclosure. The device 405 may be an example of an aspect of a UE 115. The device 405 may include a receiver 410, a transmitter 415, and a communications manager 420. The communications manager 420 may be implemented, at least in part, by one or both of a modem and a processor, and may also include a processor. Each of these components may be in communication with one another (e.g., via one or more buses).

[0128]

[0134] The receiver 410 may provide a means for receiving information such as packets, user data, control information, or any combination thereof associated with various information channels (e.g., control channel, data channel, information channel related to SRI association for CG-based TRP PUSCH repetition). The information may be passed to other components of the device 405. The receiver 410 may use a single antenna or a set of multiple antennas.

[0129]

[0135] The transmitter 415 may provide a means for transmitting signals generated by other components of the device 405. For example, the transmitter 415 may transmit information such as packets associated with various information channels (e.g., control channels, data channels, information channels related to SRI association for CG-based TRP PUSCH repetitions), user data, control information, or any combination thereof. In some examples, the transmitter 415 may be co-located with the receiver 410 within a transceiver module. The transmitter 415 may use a single antenna or a set of multiple antennas.

[0130]

[0136] The communications manager 420, the receiver 410, the transmitter 415, or various combinations or components thereof may be examples of means for performing various aspects of SRI association for CG-based TRP PUSCH repetition. For example, the communications manager 420, the receiver 410, the transmitter 415, or various combinations or components thereof may support a method for performing one or more of the functions described herein.

[0131]

[0137] In some examples, the communications manager 420, the receiver 410, the transmitter 415, or various combinations or components thereof may be implemented in hardware (e.g., in a communications management circuit). The hardware may include a processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof configured as or otherwise supporting means for performing functions described in this disclosure. In some examples, the processor and a memory coupled to the processor may be configured to perform one or more of the functions described herein (e.g., by executing, by the processor, instructions stored in the memory).

[0132]

[0138] Additionally or alternatively, in some examples, the communications manager 420, the receiver 410, the transmitter 415, or various combinations or components thereof may be implemented in code executed by a processor (e.g., as communications management software or firmware). When implemented in code executed by a processor, the functionality of the communications manager 420, the receiver 410, the transmitter 415, or various combinations or components thereof may be performed by a general-purpose processor (e.g., configured as a means for performing or otherwise supporting the functions described in this disclosure), a DSP, a central processing unit (CPU), an ASIC, an FPGA, or any combination of these or other programmable logic devices.

[0133]

[0139] In some examples, the communications manager 420 may be configured to use or otherwise cooperate with the receiver 410, the transmitter 415, or both to perform various operations (e.g., receiving, monitoring, transmitting). For example, the communications manager 420 may receive information from the receiver 410, send information to the transmitter 415, or be incorporated in combination with the receiver 410, the transmitter 415, or both to receive information, transmit information, or perform various other operations.

[0134]

[0140] The communications manager 420 may support wireless communications in a UE according to examples disclosed herein. For example, the communications manager 420 may be configured as or otherwise support a first control signaling indicating a first sounding reference signal resource set associated with a first set of power control parameters and a second sounding reference signal resource set associated with a second set of power control parameters. The communications manager 420 may be configured as or otherwise support a second control signaling indicating a CG configuration, the first set of power control parameters and the second set of power control parameters being for uplink transmissions and associated with the CG configuration. The communications manager 420 may be configured as or otherwise support a first control signaling indicating a first sounding reference signal resource set associated with a first set of power control parameters and a second sounding reference signal resource set associated with a second set of power control parameters. The communications manager 420 may be configured as or otherwise support a second control signaling indicating a CG configuration, the first set of power control parameters and the second set of power control parameters being for uplink transmissions and associated with the CG configuration. The communications manager 420 may be configured as or otherwise support a second control signaling indicating a configuration state of each of one or more fields in the RRC signaling based on one or both of the first control signaling or the second control signaling. The communications manager 420 may be configured or otherwise support a means for selecting a sounding reference signal resource set from the first sounding reference signal resource set or the second sounding reference signal resource set based on a configuration state. The communications manager 420 may be configured or otherwise support a means for transmitting one or more uplink transmissions on a PUSCH associated with a CG configuration using a sounding reference signal resource set selected from the first sounding reference signal resource set or the second sounding reference signal resource set.

[0135]

[0141] By including or configuring the communications manager 420, the device 405 (e.g., a processor controlling or otherwise coupled to the receiver 410, the transmitter 415, the communications manager 420, or a combination thereof) may determine associations between one or more SRS resource sets and CG uplink transmission control parameters and mapping patterns between CG uplink transmissions and SRS resource sets, and support techniques to reduce processing difficulties, reduce power consumption, and improve utilization of communications resources.

[0136]

[0142] 5 illustrates a block diagram of a device 505 supporting SRI association for CG-based TRP PUSCH transmission according to an aspect of the disclosure. The device 505 may be an example of an aspect of the device 405 or the UE 115. The device 505 may include a receiver 510, a transmitter 515, and a communications manager 520. The communications manager 520 may be implemented, at least in part, by a modem and / or a processor. Each of these components may be in communication with one another (e.g., via one or more buses).

[0137]

[0143] The receiver 510 may provide a means for receiving information such as packets, user data, control information, or any combination thereof associated with various information channels (e.g., control channel, data channel, information channel related to SRI association for CG-based TRP PUSCH repetition). The information may be passed to other components of the device 505. The receiver 510 may use a single antenna or a set of multiple antennas.

[0138]

[0144] The transmitter 515 may provide a means for transmitting signals generated by other components of the device 505. For example, the transmitter 515 may transmit information such as packets associated with various information channels (e.g., control channels, data channels, information channels related to SRI association for CG-based TRP PUSCH repetitions), user data, control information, or any combination thereof. In some examples, the transmitter 515 may be co-located with the receiver 510 within a transceiver module. The transmitter 515 may use a single antenna or a set of multiple antennas.

[0139]

[0145] The device 505, or various components thereof, may be an example of a means for performing various aspects of SRI association for CG-based TRP PUSCH repetition. For example, the communications manager 520 may include a control signaling receiver 525, a field state component 530, an SRS resource set selector 535, an uplink transmitter 540, or any combination thereof. In some examples, the communications manager 520, or various components thereof, may be configured to use or otherwise cooperate with the receiver 510, the transmitter 515, or both to perform various operations (e.g., receive, monitor, transmit). For example, the communications manager 520 may be incorporated in combination with the receiver 510, the transmitter 515, or both to receive information from the receiver 510, send information to the transmitter 515, or to receive information, transmit information, or perform various other operations.

[0140]

[0146] The communications manager 520 may support wireless communications in the UE according to examples disclosed herein. The control signaling receiver 525 may be configured as or otherwise support a means for receiving a first control signaling indicating a first sounding reference signal resource set associated with a first set of power control parameters and a second sounding reference signal resource set associated with a second set of power control parameters. The control signaling receiver 525 may be configured as or otherwise support a means for receiving a second control signaling indicating a CG configuration, the first set of power control parameters and the second set of power control parameters being for uplink transmissions and associated with the CG configuration. The field state component 530 may be configured as or otherwise support a means for determining a configuration state of each of one or more fields in the RRC signaling based on one or both of the first control signaling or the second control signaling. The SRS resource set selector 535 may be configured or otherwise support a means for selecting a sounding reference signal resource set from the first sounding reference signal resource set or the second sounding reference signal resource set based on a configuration state. The uplink transmitter 540 may be configured or otherwise support a means for transmitting one or more uplink transmissions on a PUSCH associated with a CG configuration using a sounding reference signal resource set selected from the first sounding reference signal resource set or the second sounding reference signal resource set.

[0141]

[0147] 6 illustrates a block diagram of a communications manager 620 supporting SRI association for CG-based TRP PUSCH transmissions according to an aspect of the disclosure. The communications manager 620, or various components thereof, may be an example of a means for performing various aspects of SRI association for CG-based TRP PUSCH repetition. For example, the communications manager 620 may include a control signaling receiver 625, a field state component 630, an SRS resource set selector 635, an uplink transmitter 640, a field association component 645, or any combination thereof. Each of these components may communicate with one another directly or indirectly (e.g., via one or more buses).

[0142]

[0148] The communications manager 620 may support wireless communications in the UE according to examples disclosed herein. The control signaling receiver 625 may be configured as or otherwise support a means for receiving a first control signaling indicating a first sounding reference signal resource set associated with a first set of power control parameters and a second sounding reference signal resource set associated with a second set of power control parameters. In some examples, the control signaling receiver 625 may be configured as or otherwise support a means for receiving a second control signaling indicating a CG configuration, the first set of power control parameters and the second set of power control parameters being for uplink transmissions and associated with the CG configuration. The field state component 630 may be configured as or otherwise support a means for determining a configuration state of each of one or more fields in the RRC signaling based on one or both of the first control signaling or the second control signaling. The SRS resource set selector 635 may be configured or otherwise support a means for selecting a sounding reference signal resource set from the first sounding reference signal resource set or the second sounding reference signal resource set based on a configuration state. The uplink transmitter 640 may be configured or otherwise support a means for transmitting one or more uplink transmissions on a PUSCH associated with a CG configuration using a sounding reference signal resource set selected from the first sounding reference signal resource set or the second sounding reference signal resource set.

[0143]

[0149] In some examples, to support determining the configuration state of one or more fields in the RRC signaling, the field state component 630 may be configured with or otherwise support a means for determining that one or more second fields of the one or more fields are not configured.

[0144]

[0150] In some examples, to support selecting a sounding reference signal resource set, the SRS resource set selector 635 may be configured as or otherwise support a means for selecting a first sounding reference signal resource set based on one or more first fields of a first sounding reference signal resource set associated with the first sounding reference signal resource set. In some examples, the one or more fields include one or both of a sounding reference signal resource indicator field or a precoding and layer number field.

[0145]

[0151] In some examples, the control signaling receiver 625 may be configured with or otherwise support a means for receiving a third control signaling indicating that one or more fields are associated with one of the first sounding reference signal resource set or the second sounding reference signal resource set.

[0146]

[0152] In some examples, the one or more fields include one or both of a sounding reference signal resource indicator field or a precoding and layer number field. In some examples, one or both of the first control signaling or the second control signaling includes a third control signaling.

[0147]

[0153] In some examples, to support determining the configuration state of one or more fields in the RRC signaling, the field state component 630 may be configured or otherwise support as a means for determining that one or more second fields of the one or more fields are configured.

[0148]

[0154] In some examples, the field association component 645 may be configured with or otherwise support a means for determining that one or more first fields of the one or more fields in the RRC signaling are associated with a first sounding reference signal resource set and one or more second fields of the one or more fields in the RRC signaling are associated with a second sounding reference signal resource set, where selecting a sounding reference signal resource set from the first sounding reference signal resource set or the second sounding reference signal resource set is based on determining that the one or more first fields are associated with the first sounding reference signal resource set and the one or more second fields are associated with the second sounding reference signal resource set.

[0149]

[0155] In some examples, to support selecting a sounding reference signal resource set, the SRS resource set selector 635 may be configured as or otherwise support a means for selecting a sounding reference signal resource set based on a fixed order for one or more uplink transmissions.

[0150]

[0156] In some examples, to support selecting a sounding reference signal resource set based on a fixed order for one or more uplink transmissions, the SRS resource set selector 635 may be configured with or otherwise support a means for selecting a first sounding reference signal resource set for a first uplink transmission at the time of the one or more uplink transmissions and selecting a first sounding reference signal resource set or a second sounding reference signal resource set for one or more second uplink transmissions at the time of the one or more uplink transmissions based on a mapping type.

[0151]

[0157] In some examples, the mapping type includes a cyclic mapping of the first sounding reference signal resource set and the second sounding reference signal resource set. In some examples, the mapping type includes a continuous mapping of the first sounding reference signal resource set and the second sounding reference signal resource set.

[0152]

[0158] In some examples, the control signaling receiver 625 may be configured with or otherwise support a means for receiving third control signaling having a field indicating that a first uplink transmission at a time of one or more uplink transmissions is associated with one of the first sounding reference signal resource set or the second sounding reference signal resource set, where transmitting the one or more uplink transmissions is based on the third control signaling.

[0153]

[0159] In some examples, the control signaling receiver 625 may be configured with or otherwise support a means for receiving a third control signaling having a field indicating one of a fixed set of preconfigured mapping options associated with one or both of the first sounding reference signal resource set or the second sounding reference signal resource set.

[0154]

[0160] In some examples, the fixed set of preconfigured mapping options includes one or more of: a first uplink transmission at a time of one or more uplink transmissions associated with the first sounding reference signal resource set and a second uplink transmission at a time of one or more uplink transmissions associated with the second sounding reference signal resource set; a first uplink transmission at a time of one or more uplink transmissions associated with the second sounding reference signal resource set and a second uplink transmission at a time of one or more uplink transmissions associated with the first sounding reference signal resource set; one or more uplink transmissions associated with the first sounding reference signal resource set; or one or more uplink transmissions associated with the second sounding reference signal resource set.

[0155]

[0161] In some examples, the CG configuration includes a CG PUSCH configuration of Type 1. In some examples, the one or more fields in the RRC signaling include one or more of a sounding reference signal resource indicator field, a precoding and layer number field, or a path loss reference index field. In some examples, the RRC signaling includes one or both of the first control signaling or the second control signaling.

[0156]

[0162] In some examples, to support receiving the second control signaling indicating the CG configuration, the control signaling receiver 625 may be configured as or otherwise support a means for receiving the second control signaling indicating the CG PUSCH configuration.

[0157]

[0163] In some examples, the one or more uplink transmissions include a codebook physical uplink shared channel transmission or a non-codebook physical uplink shared channel transmission.

[0158]

[0164] FIG. 7 illustrates a diagram of a system including a device 705 supporting SRI association for CG-based TRP PUSCH transmission according to an aspect of the disclosure. The device 705 may be or include an example of a component of the device 405, device 505, or UE 115. The device 705 may wirelessly communicate with one or more base stations 105, UE 115, or any combination thereof. The device 705 may include components for two-way voice and data communication, including components for transmitting and receiving communications, such as a communications manager 720, an input / output (I / O) controller 710, a transceiver 715, an antenna 725, a memory 730, code 735, and a processor 740. These components may be in electronic communication or otherwise coupled (e.g., operatively, communicatively, functionally, electronically, electrically) via one or more buses (e.g., bus 745).

[0159]

[0165] The I / O controller 710 may manage input and output signals for the device 705. The I / O controller 710 may also manage peripheral devices that are not built into the device 705. In some examples, the I / O controller 710 may represent a physical connection or port to an external peripheral device. In some examples, the I / O controller 710 may utilize an operating system such as iOS®, ANDROID®, MS-DOS®, MS-WINDOWS®, OS / 2®, UNIX®, LINUX®, or another known operating system. Additionally or alternatively, the I / O controller 710 may represent or interact with a modem, keyboard, mouse, touch screen, or similar device. In some examples, the I / O controller 710 may be implemented as part of a processor, such as the processor 740. In some examples, a user may interact with the device 705 through the I / O controller 710 or through hardware components controlled by the I / O controller 710.

[0160]

[0166] In some examples, the device 705 may include a single antenna 725. However, in some other cases, the device 705 may have two or more antennas 725 that may be capable of simultaneously transmitting or receiving multiple wireless transmissions. The transceiver 715 may communicate bidirectionally over one or more antennas 725, wired links, or wireless links. For example, the transceiver 715 may represent a wireless transceiver and may communicate bidirectionally with another wireless transceiver. The transceiver 715 may also include a modem for modulating packets and providing the modulated packets to one or more antennas 725 for transmission and demodulating packets received from the one or more antennas 725. The transceiver 715, or the transceiver 715 and one or more antennas 725, may be an example of the transmitter 415, the transmitter 515, the receiver 410, the receiver 510, or any combination or components thereof.

[0161]

[0167] The memory 730 may include random access memory (RAM) and read only memory (ROM). The memory 730 may store computer readable, computer executable code 735 including instructions that, when executed by the processor 740, cause the device 705 to perform various functions described herein. The code 735 may be stored in a non-transitory computer readable medium, such as a system memory or another type of memory. In some examples, the code 735 may not be directly executable by the processor 740, but may (e.g., when compiled and executed) cause the computer to perform functions described herein. In some examples, the memory 730 may include a basic I / O system (BIOS), which may control basic hardware or software operations, such as interaction with peripheral components or devices, among others.

[0162]

[0168] The processor 740 may include an intelligent hardware device (e.g., a general-purpose processor, a DSP, a CPU, a microcontroller, an ASIC, an FPGA, a programmable logic device, a discrete gate or transistor logic component, a discrete hardware component, or any combination thereof). In some examples, the processor 740 may be configured to operate a memory array using a memory controller. In some other cases, the memory controller may be incorporated into the processor 740. The processor 740 may be configured to execute computer-readable instructions stored in a memory (e.g., memory 730) to cause the device 705 to perform various functions (e.g., functions or tasks supporting SRI association for CG-based TRP PUSCH repetition). The communications manager 920 may be implemented, at least in part, by one or both of a modem and a processor.

[0163]

[0169] The communications manager 720 may support wireless communications in a UE according to examples disclosed herein. For example, the communications manager 720 may be configured as or otherwise support a means for receiving a first control signaling indicating a first sounding reference signal resource set associated with a first set of power control parameters and a second sounding reference signal resource set associated with a second set of power control parameters. The communications manager 720 may be configured as or otherwise support a means for receiving a second control signaling indicating a CG configuration, the first set of power control parameters and the second set of power control parameters being for uplink transmissions and associated with the CG configuration. The communications manager 720 may be configured as or otherwise support a means for determining a configuration state of each of one or more fields in the RRC signaling based on one or both of the first control signaling or the second control signaling. The communications manager 720 may be configured or otherwise support a means for selecting a sounding reference signal resource set from the first sounding reference signal resource set or the second sounding reference signal resource set based on a configuration state. The communications manager 720 may be configured or otherwise support a means for transmitting one or more uplink transmissions on a PUSCH associated with a CG configuration using a sounding reference signal resource set selected from the first sounding reference signal resource set or the second sounding reference signal resource set.

[0164]

[0170] By including or configuring a communications manager 720, the device 705 may determine an association between one or more SRS resource sets and CG uplink transmission control parameters and a mapping pattern between CG uplink transmissions and SRS resource sets, and support techniques to mitigate difficulties in determining transmission parameters, reduce power consumption, improve coordination between devices, and improve utilization of processing capabilities.

[0165]

[0171] In some examples, the communications manager 720 may be configured to perform various operations (e.g., receiving, monitoring, transmitting) using or otherwise cooperating with the transceiver 715, one or more antennas 725, or any combination thereof. Although the communications manager 720 is shown as a separate component, in some examples, one or more functions described with respect to the communications manager 720 may be supported or performed by the processor 740, the memory 730, the code 735, or any combination thereof. For example, the code 735 may include instructions executable by the processor 740 to cause the device 705 to perform various aspects of SRI association for CG-based TRP PUSCH repetition, or the processor 740 and the memory 730 may be otherwise configured to perform or support such operations.

[0166]

[0172] FIG. 8 illustrates a flowchart illustrating a method 800 for supporting SRI association for CG-based TRP PUSCH transmission according to an aspect of the disclosure. The operations of method 800 may be implemented by a UE or components thereof. For example, the operations of method 800 may be performed by the UE 115 described with reference to FIGS. 1-7. In some examples, the UE may execute a set of instructions to control functional elements of the UE to perform the described functions. Additionally or alternatively, the UE may perform aspects of the described functions using dedicated hardware.

[0167]

[0173] At 805, the method may include receiving first control signaling indicating a first sounding reference signal resource set associated with a first set of power control parameters and a second sounding reference signal resource set associated with a second set of power control parameters. The operations of 805 may be performed according to examples disclosed herein. In some examples, aspects of the operations of 805 may be performed by a control signaling receiver 625 as described with reference to FIG.

[0168]

[0174] At 810, the method may include receiving a second control signaling indicating a CG configuration, where the first set of power control parameters and the second set of power control parameters are for uplink transmissions and are associated with the CG configuration. The operations of 810 may be performed according to examples disclosed herein. In some examples, aspects of the operations of 810 may be performed by a control signaling receiver 625 as described with reference to FIG.

[0169]

[0175] At 815, the method may include determining a configuration state of each of the one or more fields in the RRC signaling based on one or both of the first control signaling or the second control signaling. The operations of 815 may be performed in accordance with examples disclosed herein. In some examples, aspects of the operations of 815 may be performed by a field state component 630 as described with reference to FIG.

[0170]

[0176] At 820, the method may include selecting a sounding reference signal resource set from the first sounding reference signal resource set or the second sounding reference signal resource set based on the configuration state. The operations of 820 may be performed according to examples disclosed herein. In some examples, aspects of the operations of 820 may be performed by the SRS resource set selector 635, as described with reference to FIG.

[0171]

[0177] At 825, the method may include transmitting one or more uplink transmissions on a PUSCH associated with the CG configuration using a sounding reference signal resource set selected from the first sounding reference signal resource set or the second sounding reference signal resource set. The operations of 825 may be performed according to examples disclosed herein. In some examples, aspects of the operations of 825 may be performed by an uplink transmitter 640 as described with reference to FIG.

[0172]

[0178] FIG. 9 illustrates a flowchart illustrating a method 900 for supporting SRI association for CG-based TRP PUSCH transmission according to an aspect of the disclosure. The operations of the method 900 may be implemented by a UE or components thereof. For example, the operations of the method 900 may be performed by the UE 115 described with reference to FIGS. 1-7. In some examples, the UE may execute a set of instructions to control functional elements of the UE to perform the described functions. Additionally or alternatively, the UE may perform aspects of the described functions using dedicated hardware.

[0173]

[0179] At 905, the method may include receiving a first control signaling indicating a first sounding reference signal resource set associated with a first set of power control parameters and a second sounding reference signal resource set associated with a second set of power control parameters. The operations of 905 may be performed according to examples disclosed herein. In some examples, aspects of the operations of 905 may be performed by a control signaling receiver 625 as described with reference to FIG.

[0174]

[0180] At 910, the method may include receiving second control signaling indicating a CG configuration, where the first set of power control parameters and the second set of power control parameters are for uplink transmissions and are associated with the CG configuration. The operations of 910 may be performed in accordance with examples disclosed herein. In some examples, aspects of the operations of 910 may be performed by a control signaling receiver 625 as described with reference to FIG.

[0175]

[0181] At 915, the method may include determining that one or more second fields of the one or more fields are not configured. The operations of 915 may be performed according to examples disclosed herein. In some examples, aspects of the operations of 915 may be performed by field state component 630, as described with reference to FIG.

[0176]

[0182] At 920, the method may include selecting a first sounding reference signal resource set based on one or more first fields of the ones associated with the first sounding reference signal resource set. The operations of 920 may be performed according to examples disclosed herein. In some examples, aspects of the operations of 920 may be performed by the SRS resource set selector 635, as described with reference to FIG.

[0177]

[0183] At 925, the method may include transmitting one or more uplink transmissions on a PUSCH associated with the CG configuration using a first sounding reference signal resource set selected from the first sounding reference signal resource set or the second sounding reference signal resource set. The operations of 925 may be performed according to examples disclosed herein. In some examples, aspects of the operations of 925 may be performed by an uplink transmitter 640 as described with reference to FIG.

[0178]

[0184] FIG. 10 illustrates a flowchart illustrating a method 1000 for supporting SRI association for CG-based TRP PUSCH transmission according to an aspect of the disclosure. The operations of method 1000 may be implemented by a UE or components thereof. For example, the operations of method 1000 may be performed by the UE 115 described with reference to FIGS. 1-7. In some examples, the UE may execute a set of instructions to control functional elements of the UE to perform the described functions. Additionally or alternatively, the UE may perform aspects of the described functions using dedicated hardware.

[0179]

[0185] At 1005, the method may include receiving a first control signaling indicating a first sounding reference signal resource set associated with a first set of power control parameters and a second sounding reference signal resource set associated with a second set of power control parameters. The operations of 1005 may be performed according to examples disclosed herein. In some examples, aspects of the operations of 1005 may be performed by a control signaling receiver 625 as described with reference to FIG.

[0180]

[0186] At 1010, the method may include receiving a second control signaling indicating a CG configuration, where the first set of power control parameters and the second set of power control parameters are for uplink transmissions and are associated with the CG configuration. The operations of 1010 may be performed according to examples disclosed herein. In some examples, aspects of the operations of 1010 may be performed by a control signaling receiver 625 as described with reference to FIG.

[0181]

[0187] At 1015, the method may include receiving a third control signaling indicating that one or more fields are associated with one of the first sounding reference signal resource set or the second sounding reference signal resource set. The operations of 1015 may be performed according to examples disclosed herein. In some examples, aspects of the operations of 1015 may be performed by a control signaling receiver 625 as described with reference to FIG.

[0182]

[0188] At 1020, the method may include determining that one or more second fields of the one or more fields are not configured. The operations of 1020 may be performed in accordance with examples disclosed herein. In some examples, aspects of the operations of 1020 may be performed by a field state component 630, as described with reference to FIG.

[0183]

[0189] At 1025, the method may include selecting a sounding reference signal resource set from the first sounding reference signal resource set or the second sounding reference signal resource set based on the configuration state. The operations of 1025 may be performed according to examples disclosed herein. In some examples, aspects of the operations of 1025 may be performed by an SRS resource set selector 635, as described with reference to FIG. 6.

[0184]

[0190] At 1030, the method may include transmitting one or more uplink transmissions on a PUSCH associated with the CG configuration using a sounding reference signal resource set selected from the first sounding reference signal resource set or the second sounding reference signal resource set. The operations of 1030 may be performed according to examples disclosed herein. In some examples, aspects of the operations of 1030 may be performed by an uplink transmitter 640 as described with reference to FIG. 6.

[0185]

[0191] FIG. 11 illustrates a flowchart illustrating a method 1100 for supporting SRI association for CG-based TRP PUSCH transmission according to an aspect of the disclosure. The operations of the method 1100 may be implemented by a UE or components thereof. For example, the operations of the method 1100 may be performed by the UE 115 described with reference to FIGS. 1-7. In some examples, the UE may execute a set of instructions to control functional elements of the UE to perform the described functions. Additionally or alternatively, the UE may perform aspects of the described functions using dedicated hardware.

[0186]

[0192] At 1105, the method may include receiving a first control signaling indicating a first sounding reference signal resource set associated with a first set of power control parameters and a second sounding reference signal resource set associated with a second set of power control parameters. The operations of 1105 may be performed according to examples disclosed herein. In some examples, aspects of the operations of 1105 may be performed by a control signaling receiver 625 as described with reference to FIG.

[0187]

[0193] At 1110, the method may include receiving a second control signaling indicating a CG configuration, where the first set of power control parameters and the second set of power control parameters are for uplink transmissions and are associated with the CG configuration. The operations of 1110 may be performed in accordance with examples disclosed herein. In some examples, aspects of the operations of 1110 may be performed by the control signaling receiver 625 as described with reference to FIG.

[0188]

[0194] At 1115, the method may include determining that one or more second fields of the one or more fields are configured. The operations of 1115 may be performed according to examples disclosed herein. In some examples, aspects of the operations of 1115 may be performed by field state component 630, as described with reference to FIG.

[0189]

[0195] At 1120, the method may include determining that one or more first fields of the one or more fields in the RRC signaling are associated with a first sounding reference signal resource set and one or more second fields of the one or more fields in the RRC signaling are associated with a second sounding reference signal resource set, where selecting a sounding reference signal resource set from the first sounding reference signal resource set or the second sounding reference signal resource set is based on determining that the one or more first fields are associated with the first sounding reference signal resource set and the one or more second fields are associated with the second sounding reference signal resource set. The operations of 1120 may be performed according to examples disclosed herein. In some examples, aspects of the operations of 1120 may be performed by a field association component 645 as described with reference to FIG. 6.

[0190]

[0196] At 1125, the method may include selecting a sounding reference signal resource set from the first sounding reference signal resource set or the second sounding reference signal resource set based on the configuration state. The operations of 1125 may be performed according to examples disclosed herein. In some examples, aspects of the operations of 1125 may be performed by the SRS resource set selector 635, as described with reference to FIG.

[0191]

[0197] At 1130, the method may include selecting a sounding reference signal resource set based on a fixed order for one or more uplink transmissions. The operations of 1130 may be performed in accordance with examples disclosed herein. In some examples, aspects of the operations of 1130 may be performed by an SRS resource set selector 635, as described with reference to FIG. 6.

[0192]

[0198] At 1135, the method may include transmitting one or more uplink transmissions on a PUSCH associated with the CG configuration using a sounding reference signal resource set selected from the first sounding reference signal resource set or the second sounding reference signal resource set. The operations of 1135 may be performed according to examples disclosed herein. In some examples, aspects of the operations of 1135 may be performed by an uplink transmitter 640 as described with reference to FIG.

[0193]

[0199] FIG. 12 illustrates a flowchart illustrating a method 1200 for supporting SRI association for CG-based TRP PUSCH transmission according to an aspect of the disclosure. The operations of the method 1200 may be implemented by a UE or components thereof. For example, the operations of the method 1200 may be performed by the UE 115 described with reference to FIGS. 1-7. In some examples, the UE may execute a set of instructions to control functional elements of the UE to perform the described functions. Additionally or alternatively, the UE may perform aspects of the described functions using dedicated hardware.

[0194]

[0200] At 1205, the method may include receiving a first control signaling indicating a first sounding reference signal resource set associated with a first set of power control parameters and a second sounding reference signal resource set associated with a second set of power control parameters. The operations of 1205 may be performed according to examples disclosed herein. In some examples, aspects of the operations of 1205 may be performed by a control signaling receiver 625 as described with reference to FIG.

[0195]

[0201] At 1210, the method may include receiving a second control signaling indicating a CG configuration, where the first set of power control parameters and the second set of power control parameters are for uplink transmissions and are associated with the CG configuration. The operations of 1210 may be performed in accordance with examples disclosed herein. In some examples, aspects of the operations of 1210 may be performed by a control signaling receiver 625 as described with reference to FIG.

[0196]

[0202] At 1215, the method may include receiving a third control signaling having a field indicating one of a fixed set of preconfigured mapping options associated with one or both of the first sounding reference signal resource set or the second sounding reference signal resource set. The operations of 1215 may be performed according to examples disclosed herein. In some examples, aspects of the operations of 1215 may be performed by the control signaling receiver 625 as described with reference to FIG.

[0197]

[0203] At 1220, the method may include determining, based on one or both of the first control signaling or the second control signaling, a configuration state of each of the one or more fields in the RRC signaling. The operations of 1220 may be performed in accordance with examples disclosed herein. In some examples, aspects of the operations of 1220 may be performed by a field state component 630, as described with reference to FIG.

[0198]

[0204] At 1225, the method may include determining that one or more second fields of the one or more fields are configured. The operations of 1225 may be performed according to examples disclosed herein. In some examples, aspects of the operations of 1225 may be performed by a field state component 630, as described with reference to FIG.

[0199]

[0205] At 1230, the method may include selecting a sounding reference signal resource set from the first sounding reference signal resource set or the second sounding reference signal resource set based on the configuration state. The operations of 1230 may be performed according to examples disclosed herein. In some examples, aspects of the operations of 1230 may be performed by an SRS resource set selector 635, as described with reference to FIG. 6.

[0200]

[0206] At 1235, the method may include transmitting one or more uplink transmissions on a PUSCH associated with the CG configuration using a sounding reference signal resource set selected from the first sounding reference signal resource set or the second sounding reference signal resource set. The operations of 1235 may be performed according to examples disclosed herein. In some examples, aspects of the operations of 1235 may be performed by an uplink transmitter 640 as described with reference to FIG. 6.

[0201]

[0207] The following provides a summary of aspects of the disclosure.

[0202]

[0208] Aspect 1: A method for wireless communications in a UE, comprising: receiving first control signaling indicating a first sounding reference signal resource set associated with a first set of power control parameters and a second sounding reference signal resource set associated with a second set of power control parameters; receiving second control signaling indicating a configured grant configuration; and receiving radio resource control signaling based at least in part on one or both of the first control signaling or the second control signaling associated with the configured grant configuration, the first set of power control parameters and the second set of power control parameters being for uplink transmissions. determining a configuration state of each of one or more fields in a sounding reference signaling (SRS) channel; selecting a sounding reference signal resource set from a first sounding reference signal resource set or a second sounding reference signal resource set based at least in part on the configuration state; and transmitting one or more uplink transmissions on a physical uplink shared channel associated with the configured grant configuration using the sounding reference signal resource set selected from the first sounding reference signal resource set or the second sounding reference signal resource set.

[0203]

[0209] Aspect 2: The method of aspect 1, wherein determining a configuration state of one or more fields in the radio resource control signaling comprises determining that one or more second fields of the one or more fields are not configured.

[0204]

[0210] Aspect 3: The method of aspect 2, wherein selecting a sounding reference signal resource set comprises selecting a first sounding reference signal resource set based at least in part on one or more first fields associated with the first sounding reference signal resource set.

[0205]

[0211] Aspect 4: The method of aspect 3, wherein the one or more fields comprise one or both of a sounding reference signal resource indicator field or a precoding and layer number field.

[0206]

[0212] Aspect 5: The method of any of aspects 2 to 4, further comprising receiving third control signaling indicating that one or more fields are associated with one of the first sounding reference signal resource set or the second sounding reference signal resource set.

[0207]

[0213] Aspect 6: The method of aspect 5, wherein the one or more fields comprise a sounding reference signal resource indicator field or one or both of a precoding and layer number field, and one or both of the first control signaling or the second control signaling comprise a third control signaling.

[0208]

[0214] Aspect 7: A method as described in any of aspects 1 to 6, wherein determining a configuration state of one or more fields in the radio resource control signaling comprises determining that one or more second fields of the one or more fields are configured.

[0209]

[0215] Aspect 8: The method of aspect 7, further comprising determining that one or more first fields of the one or more fields in the radio resource control signaling are associated with a first sounding reference signal resource set and that one or more second fields of the one or more fields in the radio resource control signaling are associated with a second sounding reference signal resource set, wherein selecting a sounding reference signal resource set from the first sounding reference signal resource set or the second sounding reference signal resource set is based at least in part on determining that the one or more first fields are associated with the first sounding reference signal resource set and that the one or more second fields are associated with the second sounding reference signal resource set.

[0210]

[0216] Aspect 9: The method of aspect 8, wherein selecting a sounding reference signal resource set comprises selecting a sounding reference signal resource set based on a fixed order for one or more uplink transmissions.

[0211]

[0217] Aspect 10: The method of aspect 9, wherein selecting a sounding reference signal resource set based on a fixed order for one or more uplink transmissions comprises selecting a first sounding reference signal resource set for a first uplink transmission at a time of the one or more uplink transmissions, and selecting the first sounding reference signal resource set or a second sounding reference signal resource set for one or more second uplink transmissions at a time of the one or more uplink transmissions based at least in part on a mapping type.

[0212]

[0218] Aspect 11: The method of aspect 10, wherein the mapping type comprises a cyclic mapping of the first sounding reference signal resource set and the second sounding reference signal resource set.

[0213]

[0219] Aspect 12: The method of aspect 10 or 11, wherein the mapping type comprises a contiguous mapping of the first sounding reference signal resource set and the second sounding reference signal resource set.

[0214]

[0220] Aspect 13: The method of any of aspects 10 to 12, further comprising receiving third control signaling having a field indicating that a first uplink transmission at a time of the one or more uplink transmissions is associated with one of the first sounding reference signal resource set or the second sounding reference signal resource set, wherein transmitting the one or more uplink transmissions is based at least in part on the third control signaling.

[0215]

[0221] Aspect 14: The method of any of aspects 8 to 13, further comprising receiving a third control signaling having a field indicating one of a fixed set of preconfigured mapping options associated with one or both of the first sounding reference signal resource set or the second sounding reference signal resource set.

[0216]

[0222] Aspect 15: The method of aspect 14, wherein the fixed set of preconfigured mapping options comprises one or more of: a first uplink transmission at a time of one or more uplink transmissions associated with the first sounding reference signal resource set and a second uplink transmission at a time of one or more uplink transmissions associated with the second sounding reference signal resource set; a first uplink transmission at a time of one or more uplink transmissions associated with the second sounding reference signal resource set and a second uplink transmission at a time of one or more uplink transmissions associated with the first sounding reference signal resource set; one or more uplink transmissions associated with the first sounding reference signal resource set; or one or more uplink transmissions associated with the second sounding reference signal resource set.

[0217]

[0223] Aspect 16: The method of any of aspects 1 to 15, wherein the configured grant configuration comprises a Type 1 configured grant physical uplink shared channel configuration.

[0218]

[0224] Aspect 17: The method of any of aspects 1 to 16, wherein the one or more fields in the radio resource control signaling comprise one or more of a sounding reference signal resource indicator field, a precoding and layer number field, or a path loss reference index field.

[0219]

[0225] Aspect 18: The method of any of aspects 1 to 17, wherein the radio resource control signaling comprises one or both of the first control signaling or the second control signaling.

[0220]

[0226] Aspect 19: The method of any of aspects 1 to 18, wherein receiving second control signaling indicating a configured grant configuration comprises receiving second control signaling indicating a configured grant physical uplink shared channel configuration.

[0221]

[0227] Aspect 20: The method of any of aspects 1-19, wherein the one or more uplink transmissions comprise a codebook physical uplink shared channel transmission or a non-codebook physical uplink shared channel transmission.

[0222]

[0228] Aspect 21: An apparatus for wireless communication in a UE, comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform a method as described in any of aspects 1 to 20.

[0223]

[0229] Aspect 22: An apparatus for wireless communication in a UE, comprising at least one means for performing a method as recited in any of aspects 1 to 20.

[0224]

[0230] Aspect 23: A non-transitory computer-readable medium storing code for wireless communication in a UE, the code comprising instructions executable by a processor to perform a method as recited in any of aspects 1 to 20.

[0225]

[0231] It should be noted that the methods described herein describe possible implementations, that the acts and steps may be rearranged or otherwise modified, and that other implementations are possible. Additionally, aspects from two or more of the methods may be combined.

[0226]

[0232] Although aspects of LTE, LTE-A, LTE-A Pro, or NR systems may be described as examples, and LTE, LTE-A, LTE-A Pro, or NR terminology may be used in much of the description, the techniques described herein are applicable to other than LTE, LTE-A, LTE-A Pro, or NR networks. For example, the described techniques may be applied to various other wireless communication systems, such as Ultra Mobile Broadband (UMB), Institute of Electronics and Electrical Engineers (IEEE) 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash OFDM, and other systems and radio technologies not explicitly mentioned herein.

[0227]

[0233] The information and signals described herein may be represented using any of a variety of different technologies and techniques. For example, data, instructions, commands, information, signals, bits, symbols, and chips that may be referenced throughout the description may be represented by voltages, currents, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.

[0228]

[0234] The various example blocks and components described in connection with the disclosure herein may be implemented or performed using a general purpose processor, a DSP, an ASIC, a CPU, an FPGA or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein. A general purpose processor may be a microprocessor, but alternatively, the processor may be any processor, controller, microcontroller, or state machine. A processor may also be implemented as a combination of computing devices (e.g., a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration).

[0229]

[0235] Computer-readable media includes both non-transitory computer storage media and communication media, including any medium that facilitates transfer of a computer program from one place to another. Non-transitory storage media may be any available medium that can be accessed by a general purpose or special purpose computer. By way of example, and not limitation, non-transitory computer-readable media may include RAM, ROM, Electrically Erasable Programmable ROM (EEPROM), Flash memory, Compact Disk (CD) ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other non-transitory medium that can be used to carry or store desired program code means in the form of instructions or data structures and that can be accessed by a general purpose or special purpose computer, or a general purpose or special purpose processor. Also, any connection is properly termed a computer-readable medium. For example, if the software is transmitted from a website, server, or other remote source using coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technologies such as infrared, radio, and microwave, the coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, radio, and microwave are included within the definition of computer readable media. As used herein, disk and disc include CD, laser disc, optical disc, digital versatile disc (DVD), floppy disk, and Blu-ray disc, where disks typically reproduce data magnetically and discs reproduce data optically with lasers. Combinations of the above are also included within the scope of computer readable media.

[0230]

[0236] As used herein, including the claims, "or" used in a list of items (e.g., a list of items ending with a phrase such as "at least one of" or "one or more of") indicates an inclusive list, such as, 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 (in other words, A and B and C). Also, the phrase "based on" as used herein should not be construed as a reference to a closed set of conditions. For example, an exemplary step described as "based on condition A" may be based on both condition A and condition B without departing from the scope of the present disclosure. In other words, the phrase "based on" as used herein is to be construed in the same manner as the phrase "based at least in part on."

[0231]

[0237] The terms "determine" or "determining" encompass a wide variety of actions, and "determining" can include calculating, computing, processing, deriving, investigating, retrieving (e.g., via looking up in a table, database, or another data structure), ascertaining, and the like. "Determining" can also include receiving (e.g., receiving information), accessing (e.g., accessing data in a memory), and the like. "Determining" can also include resolving, selecting, choosing, establishing, and other such similar actions.

[0232]

[0238] In the accompanying figures, similar components or features may have the same reference label. Furthermore, various components of the same type may be distinguished by following the reference label with a dash and a second label that distinguishes between the similar components. If only a first reference label is used herein, the description is applicable to any of the similar components having the same first reference label, regardless of the second reference label, or any other subsequent reference label.

[0233]

[0239] The description set forth herein with respect to the accompanying drawings describes exemplary configurations and does not necessarily represent all examples that may be implemented or are within the scope of the claims. The term "example" as used herein means "serving as an example, instance, or illustration" and does not mean "preferred" or "advantageous over other examples." The detailed description includes specific details for the purpose of providing an understanding of the described techniques. However, these techniques may be practiced without these specific details. In some instances, well-known structures and devices are shown in block diagram form to avoid obscuring the concepts of the described examples.

[0234]

[0240] The description herein is provided to enable any person skilled in the art to make or use the disclosure. Various modifications to the disclosure will be apparent to those skilled in the art, and the general principles defined herein may be applied to other variations without departing from the scope of the disclosure. Thus, the disclosure is not limited to the examples and designs described herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for wireless communication in a user equipment (UE), receiving first control signaling indicating a first sounding reference signal resource set associated with a first set of power control parameters and a second sounding reference signal resource set associated with a second set of power control parameters; receiving second control signaling indicating a configured grant configuration, wherein the first set of power control parameters and the second set of power control parameters are for uplink transmission and are related to the configured grant configuration; determining a configured state of each of one or more fields in radio resource control signaling based at least in part on one or both of the first control signaling or the second control signaling, wherein determining the configured state of the one or more fields in the radio resource control signaling comprises determining that one or more second fields of the one or more fields are not configured; selecting a sounding reference signal resource set from the first sounding reference signal resource set or the second sounding reference signal resource set based at least in part on the configured state; transmitting one or more uplink transmissions on a physical uplink shared channel related to the configured grant configuration using the sounding reference signal resource set selected from the first sounding reference signal resource set or the second sounding reference signal resource set comprising a method.

2. Selecting the sounding reference signal resource set comprises selecting the first sounding reference signal resource set based at least in part on one or more first fields associated with the first sounding reference signal resource set, preferably, the one or more fields comprising one or both of a sounding reference signal resource indicator field or a precoding and layer number field, the method of claim 1.

3. The method of claim 1, further comprising receiving third control signaling indicating that the one or more fields are associated with one of the first sounding reference signal resource set or the second sounding reference signal resource set, preferably, the one or more fields comprising one or both of a sounding reference signal resource indicator field, or a precoding and layer number field, wherein one or both of the first control signaling or the second control signaling comprises the third control signaling.

4. Determining the configured state of the one or more fields in the radio resource control signaling comprises determining that one or more second fields of the one or more fields are configured, the method of claim 1.

5. Determining that one or more first fields of the one or more fields in the radio resource control signaling are associated with the first sounding reference signal resource set, and one or more second fields of the one or more fields in the radio resource control signaling are associated with the second sounding reference signal resource set, wherein selecting the sounding reference signal resource set from the first sounding reference signal resource set or the second sounding reference signal resource set is at least partially based on determining that the one or more first fields are associated with the first sounding reference signal resource set and the one or more second fields are associated with the second sounding reference signal resource set, the method according to claim 4.

6. Selecting the sounding reference signal resource set comprises selecting the sounding reference signal resource set based on a fixed order for the one or more uplink transmissions, preferably, selecting the sounding reference signal resource set based on the fixed order for the one or more uplink transmissions comprises selecting the first sounding reference signal resource set for a first uplink transmission at the time of the one or more uplink transmissions, and selecting, at least partially based on a mapping type, the first sounding reference signal resource set or the second sounding reference signal resource set for one or more second uplink transmissions at the time of the one or more uplink transmissions, more preferably, the mapping type comprises cyclic mapping of the first sounding reference signal resource set and the second sounding reference signal resource set, or sequential mapping of the first sounding reference signal resource set and the second sounding reference signal resource set, the method according to claim 5.

7. Further comprising receiving a third control signaling having a field indicating one of a set of preconfigured mapping options related to one or both of the first sounding reference signal resource set or the second sounding reference signal resource set, preferably, the set of preconfigured mapping options includes a first uplink transmission at the time of the one or more uplink transmissions related to the first sounding reference signal resource set, and a second uplink transmission at the time of the one or more uplink transmissions related to the second sounding reference signal resource set, a first uplink transmission at the time of the one or more uplink transmissions related to the second sounding reference signal resource set, and a second uplink transmission at the time of the one or more uplink transmissions related to the first sounding reference signal resource set, the one or more uplink transmissions related to the first sounding reference signal resource set, or one or more of the one or more uplink transmissions related to the second sounding reference signal resource set, the method according to claim 5.

8. The configured grant configuration comprises a type 1 configured grant physical uplink shared channel configuration, the method according to claim 1.

9. The one or more fields in the radio resource control signaling comprise one or more of a sounding reference signal resource indicator field, a precoding and number of layers field, or a path loss reference index field, the method according to claim 1.

10. The radio resource control signaling comprises one or both of the first control signaling or the second control signaling, the method according to claim 1.

11. Receiving the second control signaling indicating the configured grant configuration comprises receiving second control signaling indicating a configured grant physical uplink shared channel configuration, the method of claim 1.

12. The one or more uplink transmissions comprise codebook physical uplink shared channel transmissions or non-codebook physical uplink shared channel transmissions, the method of claim 1.

13. An apparatus for wireless communication in a user equipment (UE), Means for receiving first control signaling indicating a first set of sounding reference signal resource sets associated with a first set of power control parameters and a second set of sounding reference signal resource sets associated with a second set of power control parameters, Means for receiving second control signaling indicating a configured grant configuration, wherein the first set of power control parameters and the second set of power control parameters are for uplink transmission and are associated with the configured grant configuration, Means for determining a configured state of each of one or more fields in radio resource control signaling based at least in part on one or both of the first control signaling or the second control signaling, wherein determining the configured state of the one or more fields in the radio resource control signaling comprises determining that one or more second fields of the one or more fields are not configured. Means for selecting a sounding reference signal resource set from the first sounding reference signal resource set or the second sounding reference signal resource set based at least in part on the configured state, means for transmitting one or more uplink transmissions on a physical uplink shared channel associated with the configured grant configuration, using the sounding reference signal resource set selected from the first sounding reference signal resource set or the second sounding reference signal resource set A device comprising:

14. A device for wireless communication according to Claim 13, further comprising means for executing the method according to any one of Claims 2 to 12.

15. A computer program comprising instructions which, when the program is executed by a computer, cause the computer to execute the method according to any one of Claims 1 to 12.

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