TPMI and / or SRI indication for codebook-based PUSCH repetition

Abstract

Various aspects of the present disclosure generally relate to wireless communications. In certain aspects, a user equipment (UE) may receive a downlink communication that includes one or more code points indicating a plurality of transmit precoder matrix indicators (TPMI) indexes and / or a sounding reference signal (SRS) resource indicator (SRI) code point indicating one or more SRS resources. The UE may identify one or more TPMI indexes for one or more repetitions of a codebook-based PUSCH transmission in a plurality of TPMI indexes based at least in part on the one or more code points, and / or may identify one or more SRS resources for one or more repetitions based at least in part on the SRI code point. Many other aspects are provided.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This patent application claims priority to U.S. Provisional Patent Application No. 62 / 962,460, filed on January 17, 2020, entitled “TPMI AND / OR SRI INDICATION FOR CODEBOOK-BASED PUSCH REPETITION,” and U.S. Non-Provisional Patent Application No. 17 / 247,601, filed on December 17, 2020, entitled “TPMI AND / OR SRI INDICATION FOR CODEBOOK-BASED PUSCH REPETITION,” which are expressly incorporated herein by reference. Technical Field

[0003] Aspects of the present disclosure relate generally to wireless communications and techniques and apparatus for transmit precoder matrix indicator (TPMI) and / or sounding reference signal resource indicator (SRI) indication for codebook-based physical uplink shared channel (PUSCH) repetitions. Background Art

[0004] Wireless communication systems are widely deployed to provide various telecommunication services such as telephony, video, data, messaging, and broadcasting. Typical wireless communication systems may employ multiple access technologies that may employ technologies capable of supporting communication with multiple users by sharing available system resources (e.g., bandwidth, transmit power, etc.). Examples of such multiple access technologies include code division multiple access (CDMA) systems, time division multiple access (TDMA) systems, frequency division multiple access (FDMA) systems, orthogonal frequency division multiple access (OFDMA) systems, single carrier frequency division multiple access (SC-FDMA) systems, time division synchronous code division multiple access (TD-SCDMA) systems, and long term evolution (LTE). LTE / LTE-Advanced is a set of enhancements to the Universal Mobile Telecommunications System (UMTS) mobile standard promulgated by the Third Generation Partnership Project (3GPP).

[0005] A wireless communication network may include multiple base stations (BS) that may support communications for multiple user equipment (UE). A user equipment (UE) may communicate with a base station (BS) via a downlink and an uplink. A downlink (or forward link) refers to a communication link from a BS to a UE, while an uplink (or reverse link) refers to a communication link from a UE to a BS. As will be described in more detail herein, a BS may be referred to as a Node B, gNB, access point (AP), radio head, transmit receive point (TRP), new radio (NR) BS, 5G Node B, etc.

[0006] In order to provide a common protocol that enables different user equipment to communicate at the city level, national level, regional level, and even global level, the above-mentioned multiple access technologies are adopted in various telecommunication standards. New Radio (NR), which can also be referred to as 5G, is a set of enhancements to the LTE mobile standard promulgated by the Third Generation Partnership Project (3GPP). NR aims to better support mobile broadband Internet access by improving spectrum efficiency, reducing costs, improving services, utilizing new spectrum, and using orthogonal frequency division multiplexing (OFDM) (CP-OFDM) with cyclic prefix (CP) on the downlink (DL), using CP-OFDM and / or SC-FDM (e.g., also known as discrete Fourier transform spread OFDM (DFT-s-OFDM)) on the uplink (UL), and supporting beamforming, multiple input multiple output (MIMO) antenna technology, and better integration with carrier aggregation and other open standards. However, as the demand for mobile broadband access continues to increase, there is a need for further improvements in LTE and NR technologies. Preferably, these improvements should be applicable to other multiple access technologies and telecommunication standards that adopt these technologies. Summary of the invention

[0007] In certain aspects, a wireless communication method performed by a user equipment (UE) may include: receiving a downlink communication comprising one or more code points indicating a plurality of transmit precoder matrix indicator (TPMI) indexes; and identifying a first TPMI index for a first repetition of a physical uplink shared channel (PUSCH) transmission among the plurality of TPMI indexes based at least in part on the one or more code points, wherein the PUSCH transmission is a codebook-based PUSCH transmission.

[0008] In certain aspects, a UE for wireless communication may include a memory and one or more processors operably coupled to the memory. The memory and the one or more processors may be configured to: receive a downlink communication including one or more code points indicating a plurality of TPMI indexes; and identify, based at least in part on the one or more code points, a first TPMI index for a first repetition of a PUSCH transmission in the plurality of TPMI indexes, wherein the PUSCH transmission is a codebook-based PUSCH transmission.

[0009] In certain aspects, a non-transitory computer-readable medium may store one or more instructions for wireless communication. When executed by one or more processors of a UE, the one or more instructions may cause the one or more processors to: receive a downlink communication, the downlink communication including one or more code points indicating a plurality of TPMI indexes; and identify, based at least in part on the one or more code points, a first TPMI index for a first repetition of a PUSCH in the plurality of TPMI indexes, wherein the PUSCH UE transmits a PUSCH based on a codebook.

[0010] In certain aspects, an apparatus for wireless communication may include: a component for receiving a downlink communication, the downlink communication including one or more code points indicating a plurality of TPMI indexes; and a component for identifying a first TPMI index for a first repetition of a PUSCH transmission in the plurality of TPMI indexes based at least in part on the one or more code points, wherein the PUSCH transmission is a codebook-based PUSCH transmission.

[0011] In certain aspects, a method for wireless communications performed by a UE may include: receiving downlink communications that schedule a first repetition set of PUSCH transmissions associated with a first uplink beam and a second repetition set of PUSCH transmissions associated with a second uplink beam; configuring a corresponding redundant version for the first repetition set based at least in part on a first redundant version sequence associated with the first uplink beam; and configuring a corresponding redundant version for the second repetition set based at least in part on a second redundant version sequence associated with the second uplink beam.

[0012] In certain aspects, a UE for wireless communication may include a memory and one or more processors operably coupled to the memory. The memory and the one or more processors may be configured to: receive a downlink communication that schedules a first repetition set of PUSCH transmissions associated with a first uplink beam and a second repetition set of PUSCH transmissions associated with a second uplink beam; configure a corresponding redundancy version for the first repetition set based at least in part on a first redundancy version sequence associated with the first uplink beam; and configure a corresponding redundancy version for the second repetition set based at least in part on a second redundancy version sequence associated with the second uplink beam.

[0013] In certain aspects, a non-transitory computer-readable medium may store one or more instructions for wireless communication. The one or more instructions, when executed by one or more processors of a UE, may cause the one or more processors to: receive a downlink communication that schedules a first repetition set of PUSCH transmissions associated with a first uplink beam and a second repetition set of PUSCH transmissions associated with a second uplink beam; configure a corresponding redundancy version for the first repetition set based at least in part on a first redundancy version sequence associated with the first uplink beam; and configure a corresponding redundancy version for the second repetition set based at least in part on a second redundancy version sequence associated with the second uplink beam.

[0014] In certain aspects, an apparatus for wireless communications may include: a component for receiving downlink communications that schedules a first repetition set of PUSCH transmissions associated with a first uplink beam and a second repetition set of PUSCH transmissions associated with a second uplink beam; a component for configuring a corresponding redundant version for the first repetition set based at least in part on a first redundant version sequence associated with the first uplink beam; and a component for configuring a corresponding redundant version for the second repetition set based at least in part on a second redundant version sequence associated with the second uplink beam.

[0015] As generally described herein with reference to and as illustrated in the accompanying drawings and description, various aspects generally include a method, apparatus, system, computer program product, non-transitory computer-readable medium, user equipment, base station, wireless communication device, and / or processing system.

[0016] The features and technical advantages of the examples according to the present disclosure have been broadly outlined above so that the following detailed description can be better understood. Additional features and advantages will be described below. The disclosed concepts and specific examples can be easily used as the basis for modifying or designing other structures for achieving the same purpose of the present disclosure. Such equivalent constructions do not depart from the scope of the appended claims. When considered in conjunction with the accompanying drawings, the features of the concepts disclosed herein, their organization and method of operation, and related advantages will be better understood from the following description. Each of the drawings is provided for the purpose of illustration and description, and not as a definition of the limitations of the claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Thus, the above-mentioned features of the present disclosure may be understood in detail, and a more specific description briefly summarized above may be made by reference to various aspects, some of which are shown in the accompanying drawings. However, it should be noted that the accompanying drawings only illustrate certain typical aspects of the present disclosure and therefore should not be considered as limiting the scope thereof, as the description may allow for other equally effective aspects. The same reference numerals in different drawings may identify the same or similar elements.

[0018] Figure 1 is a diagram illustrating an example of a wireless communication network according to various aspects of the present disclosure.

[0019] Figure 2 is a diagram illustrating an example of a base station communicating with a user equipment (UE) in a wireless communication network according to various aspects of the present disclosure.

[0020] Figure 3A-3G is a diagram illustrating one or more examples of transmit precoder matrix indicator (TPMI) and / or sounding reference signal resource indicator (SRI) indication for codebook-based physical uplink shared channel (PUSCH) repetition according to various aspects of the present disclosure.

[0021] Figure 4 and Figure 5 is a diagram illustrating example processes performed, for example, by a UE according to various aspects of the present disclosure.

[0022] Figure 6 and Figure 7 is a diagram illustrating an exemplary apparatus for conducting wireless communications in accordance with various aspects of the present disclosure. DETAILED DESCRIPTION

[0023] Various aspects of the present disclosure are described more fully below with reference to the accompanying drawings. However, the present disclosure can be embodied in many different forms and should not be construed as being limited to any specific structure or function presented throughout the present disclosure. On the contrary, these aspects are provided so that the present disclosure will be exhaustive and complete, and the scope of the present disclosure will be fully conveyed to those skilled in the art. Based on the teachings herein, it should be understood by those skilled in the art that the scope of the present disclosure is intended to cover any aspect of the present disclosure, whether it is independent of any other aspect of the present disclosure or implemented in combination with any other aspect of the present disclosure. For example, any number of aspects set forth herein can be used to implement a device or practice a method. In addition, the scope of the present disclosure is intended to cover such a device or method, which is practiced using other structures, functions, or structures and functions other than the various aspects of the present disclosure set forth herein or different from the various aspects of the present disclosure set forth herein. It should be understood that any aspect of the present disclosure can be embodied by one or more elements of the claims.

[0024] Several aspects of telecommunication systems will now be presented with reference to various devices and techniques. These devices and techniques will be described in the following detailed description and illustrated in the accompanying drawings by various blocks, modules, components, circuits, steps, processes, algorithms, etc. (collectively referred to as "elements"). These elements may be implemented using hardware, software, or any combination thereof. Whether these elements are implemented as hardware or software depends on the specific application and the design constraints imposed on the overall system.

[0025] It should be noted that although aspects may be described herein using terminology typically associated with 3G and / or 4G wireless technologies, aspects of the present disclosure may be applied to communication systems based on other generations, such as 5G and higher, including NR technology.

[0026] Figure 1 is a diagram showing a wireless network 100 in which various aspects of the present disclosure may be practiced. The network 100 may be an LTE network or some other wireless network, such as a 5G or NR network. The wireless network 100 may include a plurality of BSs 110 (shown as BS110a, BS110b, BS110c, and BS110d) and other network entities. A BS is an entity that communicates with a user equipment (UE) and may also be referred to as a base station, NRBS, Node B, gNB, 5G Node B (NB), access point, transmit receive point (TRP), etc. Each BS may provide communication coverage to a specific geographic area. In 3GPP, the term "cell" may refer to a coverage area of ​​a BS and / or a BS subsystem serving the coverage area, depending on the context in which the term is used.

[0027] A BS may provide communication coverage for macro cells, pico cells, femto cells, and / or another type of cell. A macro cell may cover a relatively large geographic area (e.g., several kilometers in radius) and may allow unrestricted access to UEs with service subscriptions. A pico cell may cover a relatively small geographic area and may allow unrestricted access to UEs with service subscriptions. A femto cell may cover a relatively small geographic area (e.g., a home) and may allow restricted access to UEs associated with the femto cell (e.g., UEs in a closed subscriber group (CSG)). A BS for a macro cell may be referred to as a macro BS. A BS for a pico cell may be referred to as a pico BS. A BS for a femto cell may be referred to as a femto BS or a home BS. In Figure 1In the example shown in , BS 110a may be a macro BS for macro cell 102a, BS 110b may be a pico BS for pico cell 102b, and BS 110c may be a femto BS for femto cell 102c. A BS may support one or more (e.g., three) cells. The terms "eNB", "base station", "NR BS", "gNB", "TRP", "AP", "Node B", "5G NB", and "cell" may be used interchangeably herein.

[0028] In some aspects, the cell may not necessarily be fixed, and the geographic area of ​​the cell may move depending on the location of the mobile BS. In some aspects, the BSs may be interconnected with each other and / or with one or more other BSs or network nodes (not shown) in the wireless network 100 via various types of backhaul interfaces (such as direct physical connections, virtual networks, and / or using any suitable transport network).

[0029] The wireless network 100 may also include a relay station. A relay station is an entity that can receive data transmissions from an upstream station (e.g., a BS or a UE) and transmit the data transmissions to a downstream station (e.g., a UE or a BS). A relay station may also be a UE that can relay transmissions for other UEs. Figure 1 In the example shown, a relay station 110d may communicate with the macro BS 110a and the UE 120d to facilitate communication between the BS 110a and the UE 120d. A relay station may also be referred to as a relay BS, a relay base station, a relay, or the like.

[0030] The wireless network 100 may be a heterogeneous network including different types of BSs, such as a macro BS, a pico BS, a femto BS, a relay BS, etc. These different types of BSs may have different transmit power levels, different coverage areas, and different effects on interference in the wireless network 100. For example, a macro BS may have a higher transmit power level (e.g., 5 to 40 watts), while a pico BS, a femto BS, and a relay BS may have a lower transmit power level (e.g., 0.1 to 2 watts).

[0031] A network controller 130 may be coupled to a set of BSs and may provide coordination and control for these BSs. The network controller 130 may communicate with the BSs via a backhaul. The BSs may also communicate with each other directly or indirectly, for example, via a wireless or wired backhaul.

[0032] UE 120 (e.g., 120a, 120b, 120c) may be dispersed throughout the wireless network 100, and each UE may be fixed or mobile. UE may also be referred to as an access terminal, terminal, mobile station, subscriber unit, station, etc. UE may be a cellular phone (e.g., a smart phone), a personal digital assistant (PDA), a wireless modem, a wireless communication device, a handheld device, a laptop computer, a cordless phone, a wireless local loop (WLL) station, a tablet computer, a camera, a gaming device, a netbook, a smart notebook, an ultra notebook, a medical device or equipment, a biosensor / device, a wearable device (smart watch, smart clothing, smart glasses, smart bracelet), smart jewelry (e.g., smart ring, smart bracelet), an entertainment device (e.g., a music or video device or a satellite radio), a vehicle component or sensor, a smart meter / sensor, an industrial manufacturing device, a global positioning system device, or any other suitable device configured to communicate via a wireless or wired medium.

[0033] Some UEs may be considered as machine type communication (MTC) or evolved or enhanced machine type communication (eMTC) UEs. MTC and eMTC UEs include, for example, robots, drones, remote devices, sensors, meters, monitors, location tags, etc., which may communicate with a base station, another device (e.g., a remote device), or some other entity. For example, a wireless node may provide connectivity to or to a network (e.g., a wide area network such as the Internet or a cellular network) via a wired or wireless communication link. Some UEs may be considered as Internet of Things (IoT) devices, and / or may be implemented as NB-IoT (narrowband Internet of Things) devices. Some UEs may be considered as customer premises equipment (CPE). UE 120 may be included inside a housing that houses components of UE 120 (e.g., processor components, memory components, etc.).

[0034] Typically, any number of wireless networks can be deployed in a given geographic area. Each wireless network can support a specific radio access technology (RAT) and can operate on one or more frequencies. RAT may also be referred to as radio technology, air interface, etc. Frequency may also be referred to as carrier, frequency channel, etc. Each frequency may support a single RAT in a given geographic area to avoid interference between wireless networks of different RATs. In some cases, NR or 5G RAT networks may be deployed.

[0035] In certain aspects, two or more UEs 120 (e.g., shown as UE 120a and UE 120e) may communicate directly (e.g., without using base station 110 as an intermediary to communicate with each other) using one or more sidelink channels. For example, UE 120 may use point-to-point (P2P) communication, device-to-device (D2D) communication, vehicle-to-everything (V2X) protocols (e.g., which may include vehicle-to-vehicle (V2V) protocols, vehicle-to-infrastructure (V2I) protocols, etc.), mesh networks, etc. In such cases, UE 120 may perform scheduling operations, resource selection operations, and / or other operations described elsewhere herein as being performed by base station 110.

[0036] As mentioned above, providing Figure 1 As an example. Other examples may differ from Figure 1 The content described.

[0037] Figure 2 A block diagram of a design 200 of a base station 110 and a UE 120 is shown, which may be Figure 1 Base station 110 may be equipped with T antennas 234a through 234t, and UE 120 may be equipped with R antennas 252a through 252r, where in general T≥1 and R≥1.

[0038] At the base station 110, the transmit processor 220 may receive data for one or more UEs from the data source 212, select one or more modulation and coding schemes (MCS) for each UE based at least in part on a channel quality indicator (CQI) received from the UE, process (e.g., encode and modulate) data for each UE based at least in part on the MCS selected for the UE, and provide data symbols for all UEs. The transmit processor 220 may also process system information (e.g., for semi-static resource partitioning information (SRPI), etc.) and control information (e.g., CQI requests, grants, upper layer signaling, etc.), and provide overhead symbols and control symbols. The transmit processor 220 may also generate reference symbols for reference signals (e.g., cell-specific reference signals (CRS)) and synchronization signals (e.g., primary synchronization signals (PSS) and secondary synchronization signals (SSS)). The transmit (TX) multiple-input multiple-output (MIMO) processor 230 may perform spatial processing (e.g., precoding) on ​​data symbols, control symbols, overhead symbols, and / or reference symbols (if applicable), and may provide T output symbol streams to T modulators (MOD) 232a to 232t. Each modulator 232 may process a respective output symbol stream (e.g., for OFDM, etc.) to obtain an output sample stream. Each modulator 232 may further process (e.g., convert to analog, amplify, filter, and up-convert) the output sample stream to obtain a downlink signal. The T downlink signals from modulators 232a to 232t may be transmitted via T antennas 234a to 234t, respectively. According to various aspects described in more detail below, position coding may be used to generate synchronization signals to convey additional information.

[0039] At the UE 120, antennas 252a to 252r may receive downlink signals from the base station 110 and / or other base stations, and may provide received signals to demodulators (DEMODs) 254a to 254r, respectively. Each demodulator 254 may condition (e.g., filter, amplify, down-convert, and digitize) the received signal to obtain input samples. Each demodulator 254 may further process the input samples (e.g., for OFDM, etc.) to obtain received symbols. The MIMO detector 256 may obtain received symbols from all R demodulators 254a to 254r, perform MIMO detection on the received symbols if applicable, and provide detected symbols. The receive processor 258 may process (e.g., demodulate and decode) the detected symbols, provide decoded data for the UE 120 to the data sink 260, and provide decoded control information and system information to the controller / processor 280. The channel processor may determine reference signal received power (RSRP), received signal strength indicator (RSSI), reference signal received quality (RSRQ), channel quality indicator (CQI), etc. In some aspects, one or more components of UE 120 may be included in a housing.

[0040] In the uplink, at the UE 120, a transmit processor 264 may receive and process data and control information (e.g., for reports including RSRP, RSSI, RSRQ, CQI, etc.) from a data source 262 from a controller / processor 280. The transmit processor 264 may also generate reference symbols for one or more reference signals. The symbols from the transmit processor 264 may be precoded by a TX MIMO processor 266 (if applicable), then further processed by modulators 254a through 254r (e.g., for DFT-s-OFDM, CP-OFDM, etc.), and transmitted to the base station 110. At the base station 110, uplink signals from the UE 120 and other UEs may be received by the antenna 234, processed by the demodulator 232, detected by the MIMO detector 236 (if applicable), and further processed by the receive processor 238 to obtain decoded data and control information transmitted by the UE 120. The receive processor 238 may provide decoded data to a data sink 239 and decoded control information to a controller / processor 240. The base station 110 may include a communication unit 244 and communicate with the network controller 130 via the communication unit 244. The network controller 130 may include a communication unit 294, a controller / processor 290, and a memory 292.

[0041] As described in greater detail elsewhere herein, the controller / processor 240 of the base station 110, the controller / processor 280 of the UE 120, and / or Figure 2Any other component(s) of the base station 110 may repeatedly perform one or more techniques associated with a transmit precoder matrix indicator (TPMI) and / or a sounding reference signal resource indicator (SRI) indication for a codebook-based physical uplink shared channel (PUSCH). For example, the controller / processor 240 of the base station 110, the controller / processor 280 of the UE 120, and / or Figure 2 Any other component(s) of may perform or direct e.g. Figure 4 400 and / or other processes described herein. Memories 242 and 282 may store data and program codes for base station 110 and UE 120, respectively. In some aspects, memory 242 and / or memory 282 may include a non-transitory computer-readable medium for storing one or more instructions for conducting wireless communications. For example, one or more instructions, when executed by one or more processors of base station 110 and / or UE 120, may perform or direct, for example, Figure 4 The scheduler 246 may schedule UEs for data transmission on the downlink and / or uplink.

[0042] In certain aspects, the UE 120 may include: a component for receiving a downlink communication, the downlink communication including one or more code points indicating a plurality of TPMI indexes; a component for identifying a first TPMI index for a first repetition of a physical uplink shared channel (PUSCH) transmission in the plurality of TPMI indexes based at least in part on the one or more code points, wherein the PUSCH transmission is a codebook-based PUSCH transmission, etc. In certain aspects, the UE 120 includes a component for receiving a downlink communication, the downlink communication scheduling a first repetition set of PUSCH transmissions associated with a first uplink beam and a second repetition set of PUSCH transmissions associated with a second uplink beam; a component for configuring a corresponding redundancy version for the first repetition set based at least in part on a first redundancy version sequence associated with the first uplink beam; a component for configuring a corresponding redundancy version for the second repetition set based at least in part on a second redundancy version sequence associated with the second uplink beam, etc. In certain aspects, such a component may include a combination of Figure 2 One or more components of UE 120 are depicted, such as controller / processor 280, transmit processor 264, TX MIMO processor 266, MOD 254, antenna 252, DEMOD 254, MIMO detector 256, receive processor 258, etc.

[0043] As mentioned above, Figure 2 Provided as examples. Other examples may differ from the Figure 2 An example of description.

[0044] As described above, the BS may schedule or configure uplink transmissions for the UE on the uplink. In some cases, the BS may configure the UE to perform a codebook-based PUSCH transmission, which may be a PUSCH transmission configured to be performed in a sounding reference signal (SRS) resource set whose usage is configured as a "codebook" for the UE. The SRS resource set may include N SRS resources (e.g., where N=1, 2, 3, or 4), and the BS may configure the number and spatial relationship information of SRS ports for each SRS resource on a per-SRS resource basis.

[0045] The spatial relationship information of the SRS resource may indicate a reference signal index (e.g., a synchronization signal block (SSB), a channel state information reference signal (CSI-RS), or another SRS resource) used for SRS resource transmission (and therefore, the associated PUSCH transmission). The UE may use the same spatial domain transmission filter as the reference signal indicated in the spatial relationship information (spatialRelationInfo), which may effectively serve as an uplink beam for PUSCH transmission.

[0046] The BS may indicate to the UE the SRS resources for PUSCH transmission by indicating the SRS resources in an SRS resource indicator (SRI) field in a downlink communication (e.g., a downlink control information (DCI) communication having format 0_1, which may be an uplink scheduling DCI) that schedules the PUSCH transmission. The UE may use the same spatial domain transmission filter for PUSCH transmission as the indicated SRS resources, and may use the number of SRS ports of the indicated SRS resources as the number of antenna ports for PUSCH transmission.

[0047] In some cases, the downlink communication may also indicate the TPMI and number of layers used for PUSCH transmission. For example, if the downlink communication is a DCI communication, the DCI communication may include precoding information and number of layers fields indicating the TPMI and number of layers. The precoding information and number of layers fields may include a code point (e.g., a number of bits indicating or representing a particular value) identifying an index associated with a row or column in a table or another type of data structure. The row or column may indicate the number of layers and the TPMI associated with the index.

[0048] In some cases, the size of the field may be based at least in part on the number of antenna ports indicated for the SRS resource, the Codebooksubset field, the Maxrank field, and / or the TransformPrecoder field. The number of antenna ports may be used to identify the number of rows of the associated TPMI matrix. In the case where some antenna ports are coherent but not fully coherent in pairs (e.g., the two antenna ports of the first pair are coherent, the other two antenna ports of the second pair are coherent, but the first pair and the second pair are incoherent), the Codebooksubset field may indicate whether the antenna port is fully coherent, partially coherent, incoherent, or a combination thereof. For example, the Codebooksubset field may indicate whether the antenna port is fullyAndPartialAndNonCoherent, or partialAndNonCoherent, or incoherent. In some cases, all TPMI indexes that may be indicated by the BS may be used for fullyAndPartialAndNonCoherent antenna ports, a subset of the TPMI indexes may be used for partialAndNonCoherent antenna ports, and another subset of the TPMI indexes may be used for incoherent antenna ports. The Maxrank field may indicate the maximum number of layers used for PUSCH transmission. The Maxrank field may be used only when the TransformPrecoder field is not enabled. The TransformPrecoder field may indicate whether DFT-s-OFDM or CP-OFDM is enabled based at least in part on whether the TransformPrecoder field is enabled.

[0049] In some cases, the BS may configure the UE to send multiple repetitions of the same PUSCH transmission (e.g., multiple repetitions of the same PUSCH transport block), where each repetition may be directed to a TRP among multiple TRPs in a multi-TRP configuration, an antenna panel among multiple antenna panels in a multi-panel configuration, or an antenna among multiple antennas in a multi-antenna configuration. Thus, if the access link between the UE and a TRP (or antenna panel or antenna) is blocked so that a repetition sent to a TRP is not received, another repetition sent to another TRP may be received so that the PUSCH transmission may be decoded.

[0050] In some cases, the UE may be configured to send repetitions of a PUSCH transmission in different time domain resources (e.g., time slots / mini-slots). Each time domain resource configured for a repetition of a PUSCH transmission may be referred to as a PUSCH transmission opportunity. In some cases, the number of repetitions (and therefore, the number of PUSCH transmission opportunities) may be configured via radio resource control (RRC) signaling, or may be dynamically indicated using a time domain resource allocation (TDRA) field (e.g., via DCI or medium access control-control element (MAC-CE) signaling). However, the BS may be able to configure only one TPMI that will be used in all repetitions of the PUSCH transmission. If the same TPMI (and therefore, the same precoder) is used for repetitions pointing to different TRPs, antenna panels, or antennas, the repeated transmissions may experience reduced performance and / or reliability because the channel conditions of the TRPs, antenna panels, or antennas may be different and not optimally handled by the same precoding.

[0051] Certain aspects described herein provide techniques and apparatus for TPMI and / or SRI indication for codebook-based PUSCH repetitions. In certain aspects, a UE may receive a downlink communication from a BS that includes one or more code points indicating a plurality of TPMI indexes and / or an SRI code point indicating one or more SRS resources. The UE may identify one or more TPMI indexes for one or more repetitions of a codebook-based PUSCH transmission in a plurality of TPMI indexes based at least in part on the one or more code points, and / or may identify one or more SRS resources for one or more repetitions based at least in part on the SRI code point.

[0052] The ability to indicate multiple TPMI indexes and / or multiple SRS resources in a single downlink communication allows the BS to configure multiple repetitions of a codebook-based PUSCH transmission with different precoders, different SRS resources, and / or other parameters while reducing or minimizing signaling overhead. The ability to configure repetitions of a codebook-based PUSCH transmission with different precoders, different SRS resources, and / or other parameters allows the repetitions to be beamformed and / or otherwise optimized for different channel conditions (e.g., multi-TRP channel conditions, multi-panel channel conditions, multi-antenna channel conditions, etc.), which improves the performance and reliability of PUSCH transmissions.

[0053] Figure 3A-3G is a diagram illustrating one or more examples 300 of TPMI and / or SRI indication for codebook-based PUSCH repetition according to various aspects of the present disclosure. Figure 3A-3GAs shown, example(s) 300 may include communications between a UE (e.g., UE 120) and a BS (e.g., BS 110). In some aspects, the UE and the BS may be included in a wireless network, such as wireless network 100. In some aspects, the UE and the BS may communicate over a wireless access link, which may include a downlink and an uplink.

[0054] In some aspects, the BS may schedule or configure the UE to send one or more repetitions of a PUSCH transmission. For example, the BS may schedule or configure the UE to send a first repetition on an uplink to the BS (e.g., to an antenna or antenna panel of the BS), a second repetition on an uplink (e.g., to another antenna or antenna panel of the BS) or on another uplink to another BS (e.g., where the BS and the other BS are TRPs in a multi-TRP configuration), and so on. In some aspects, the PUSCH transmission may be a codebook-based PUSCH transmission (e.g., where an SRS resource set is configured for PUSCH transmission using a "codebook").

[0055] like Figure 3A As shown and by reference numeral 302, a BS may send a downlink communication to a UE to schedule or configure one or more repetitions of a PUSCH transmission. The downlink communication may include one or more code points indicating a plurality of TPMI indexes for PUSCH transmission and / or may include an SRI code point indicating one or more SRS resources for PUSCH transmission.

[0056] In certain aspects, the BS may schedule or configure PUSCH transmissions for the UE using the configured uplink grant. In this case, the BS may send an RRC communication that configures cyclic or periodic resources that the UE may use for PUSCH transmissions (which may be referred to as type 1 configured grant PUSCH (CG-PUSCH) scheduling), or may send an RRC communication that configures the CG-PUSCH and activates the CG-PUSCH via a DCI communication (which may be referred to as type 2 CG-PUSCH). If the downlink communication is a type 1 CG-PUSCH RRC communication, one or more code points may be included in the precodingAndNumberOfLayers field in the RRC communication, and the SRI code point may be included in the srs-Resourceindicator field in the RRC communication.

[0057] In certain aspects, the BS may schedule or configure PUSCH transmissions for the UE using dynamic scheduling. In this case, the BS may send a DCI communication (e.g., a format 0_1 ​​DCI communication) to the UE to schedule or configure resources for PUSCH transmissions. If the downlink communication is a DCI communication, one or more code points may be included in the precoding information and layer number field or another field for indicating the TPMI index and layer number for PUSCH transmission, and / or an SRI code point may be included in the SRI field.

[0058] In some aspects, the precodingAndNumberOfLayers field in an RRC communication or the precoding information and number of layers field in a DCI communication may indicate one or more of a plurality of TPMI indexes. For example, any of these fields may include a code point in one or more code points, and the code point may point to or otherwise indicate the number of layers and one or more TPMI indexes used for PUSCH transmission. In some aspects, an RRC communication may include multiple precodingAndNumberOfLayers fields, or a DCI communication may include multiple precoding information and number of layers fields. In this case, each precodingAndNumberOfLayers field or precoding information and number of layers field may indicate a single TPMI index, so that multiple precodingAndNumberOfLayers fields or precoding information and number of layers fields indicate multiple TPMI indexes. In certain aspects, if the BS is to configure a single TPMI index for PUSCH transmission (e.g., where the SRI code point indicates one SRS resource or is not configured with 2-TPMI), the BS may set the code point in the precodingAndNumberOfLayers field or the precoding information and number of layers field following the first precodingAndNumberOfLayers field or the precoding information and number of layers field to a predetermined value, such as a value of 0.

[0059] The number of layers, the number of TPMI indexes, and the TPMI index indicated by the codepoint in the precodingAndNumberOfLayers field or the precoding information and number of layers field may be based at least in part on the interpretation of the value of the codepoint. Figure 3B An example table for indicating multiple TPMI indexes is shown. Other example tables for indicating multiple TPMI indexes may be used. Figure 3BAs shown, a first column of the table may include an index value for each row in the table. The index value may correspond to an associated code point value indicated in the precodingAndNumberOfLayers field or the precoding information and number of layers field. The table may include a second column identifying a mapping associated with the index value in the same row. The mapping may indicate the number of layers, the number of TPMI indexes, and the TPMI index for the index value (code point value). Figure 3B As further shown, the mapping in each row may specify the order of the TPMI indexes indicated in that row. In this case, each combination of TPMI indexes may be included in the table multiple times, thereby including different orders of the same TPMI index combination. As an example, and as Figure 3B As shown, the example table may include an index value of 1 associated with a TPMI index order of (TPMI 0, TPMI 1), and may include an index value of 4 associated with a reverse TPMI index order of (TPMI 1, TPMI 0).

[0060] In some aspects, the BS may be allowed to indicate any index value included in the table. In order to reduce the number of bits (and therefore the overhead of the code point) included in the precodingAndNumberOfLayers field or the code point of the precoding information and number of layers field, the BS may semi-statically configure (e.g., via RRC signaling) a subset of the table that the BS is allowed to use. In this case, the subset of the table may be configured as another (smaller) table that the code point can index to. In some aspects, in order to utilize the table more flexibly, the BS may be allowed to dynamically (e.g., via MAC-CE or DCI) configure and change the subset of the table used to indicate the TPMI index.

[0061] In certain aspects, the number of SRS resources and the SRS resource indicated by the SRS-ResourceIndicator field in RRC communications or the SRI code point in the SRI field in DCI communications may be based at least in part on an interpretation of the value of the SRI code point. Figure 3C An example table for indicating one or more SRS resources is shown. Other example tables for indicating one or more SRS resources may be used. Figure 3CAs shown, the first column of the table may include an index value for each row in the table. The index value may correspond to an associated SRI code point value indicated in the srs-ResourceIndicator field or the SRI field. The table may include one or more columns that identify a mapping associated with an index value in the same row based at least in part on the number of SRS resources configured for PUSCH transmission. For example, the table may include a row indicating a mapping for 2 configured SRS resources, a row indicating a mapping for 3 configured SRS resources, a row indicating a mapping for 4 configured SRS resources, and so on. The mapping may indicate (multiple) SRS resources and an order of SRS resources for the index value (SRI code point value). In this case, each combination of SRS resources may be included in the table multiple times, thereby including different orders of the same SRS resource combination. As an example, and as Figure 3C As shown, the example table may include an index value of 2 associated with the TPMI index order of (SRS resource 0, SRS resource 1), and may include an index value of 3 associated with the reverse order of (SRS resource 1, SRS resource 0).

[0062] In certain aspects, if the srs-ResourceIndicator field or the SRI field indicates multiple SRS resources for multiple TPMI indexes, the UE may use the spatial relationship information (spatialRelationInfo) of the SRS resource for the spatial domain transmission filter for each SRS resource indicated by the SRI code point for repetition of PUSCH transmission associated with the SRS resource. In addition, for each SRS resource indicated by the SRI code point, the UE may use the number of SRS ports associated with the SRS resource for the number of transmit antenna ports to be used for PUSCH transmission. In this case, the UE may determine the TPMI matrix for the associated repeated TPMI index based at least in part on the number of SRS ports associated with the SRS resource.

[0063] In some aspects, if the srs-ResourceIndicator field or the SRI field indicates a single SRS resource for multiple TPMI indexes, the UE may use the same spatial relationship information (spatialRelationInfo) for the SRS resource and the multiple TPMI indexes for transmitting (multiple) repetitions associated with the multiple TPMI indexes. In some aspects, when using a relatively low frequency band (such as below 6 GHz or 5G NR frequency range 1 (FR1)), the BS may configure a single SRS resource for multiple TPMI indexes because separate uplink beams may not be required for different repetitions of PUSCH transmissions to different TRPs, different antenna panels, or different antennas. In some aspects, the BS may send an indication of the SRS resources that are allowed to be used with multiple TPMI indexes to the UE. In this case, the indication may be included in the RRC communication as part of the SRS resource configuration for the SRS resources in the SRS resource set set to "codebook". In certain aspects, the BS may be configured via RRC signaling with the ability to switch between indicating one TPMI index or multiple TPMI indexes and the same SRS resource, and the ability to switch between indicating one SRS resource and multiple SRS resources.

[0064] like Figure 3D As shown, and by reference numeral 304, the UE can identify one or more TPMI indexes for one or more repetitions of PUSCH transmissions (e.g., codebook-based PUSCH transmissions) based at least in part on one or more code points included in the downlink communication, and / or can identify one or more SRS resources for one or more repetitions based at least in part on an SRI code point indicated in the downlink communication.

[0065] In certain aspects, the UE may determine the value of a code point included in the one or more code points and select the value of the code point in a table (e.g., such as Figure 3B The UE may identify one or more TPMI indexes by performing a lookup in an example table (shown in ) or other type of data structure to identify an index in the table associated with the value. In this case, the UE may identify a row in the table in which the UE performs a lookup to determine the number of layers indicated by the codepoint, the number of TPMI indexes, the TPMI indexes, and the order of the TPMI indexes. In certain aspects, the UE may identify one or more TPMI indexes by performing a lookup to identify a row in a subset of the table configured by the BS and indicated in an RRC communication or a MAC-CE communication.

[0066] In certain aspects, if the downlink communication includes multiple code points (e.g., one code point in each precodingAndNumberOfLayers field or each precoding information and number of layers field), the UE may determine a value for each code point and may perform a lookup in a table based at least in part on each value to identify a row that specifies a TPMI index for each code point.

[0067] In certain aspects, the UE may identify the table based at least in part on whether the srs-ResourceIndicator field including the SRI code point or the SRI field is configured with a 2-TPMI configuration and / or other factors, wherein the lookup in the table is performed based at least in part on the number of SRS resources indicated by the SRI code point. As an example, if the SRI code point indicates two or more SRS resources, the UE may determine to use a first table (e.g., a table for indicating multiple TPMI indexes, such as Figure 3B , and if the SRI code point indicates a single SRS resource, the UE may determine to use a second table (e.g., a table indicating a single TPMI index) to interpret the value of the code point. As another example, if the SRI code point indicates two or more SRS resources, the UE may determine to use a table (e.g., a table indicating multiple TPMI indexes, such as Figure 3B The UE may use the example table shown in Figure 1 to interpret the value of the code point, and if the SRI code point indicates a single SRS resource, the UE may determine to use the same table to interpret the value of the code point. In this case, if the SRI code point indicates a single SRS resource, the UE may use the first TPMI index indicated in the row associated with the value of the code point.

[0068] As another example, if the SRI code point indicates a single SRS resource and is configured with 2-TPMI (e.g., such that the SRS resource corresponds to multiple TPMI indexes indicated by the downlink communication), the UE may determine to use a first table (e.g., a table for indicating multiple TPMI indexes, such as Figure 3B , and if the SRI code point indicates a single SRS resource and is not configured with 2-TPMI (e.g., such that the SRS resource corresponds to a single TPMI index indicated by the downlink communication), the UE may determine to use a second table (e.g., a table for indicating a single TPMI index) to interpret the value of the code point. As another example, if the SRI code point indicates two or more SRS resources, the UE may determine to use a table (e.g., a table for indicating multiple TPMI indexes, such as Figure 3BThe UE may use the example table shown in Figure 1 to interpret the value of the code point, and if the SRI code point indicates a single SRS resource, the UE may determine to use the same table to interpret the value of the code point. In this case, if the SRI code point indicates a single SRS resource, the UE may use the first TPMI index indicated in the row associated with the value of the code point.

[0069] In some aspects, the UE may determine the value of the SRI code point and enter the value in a table (e.g., such as Figure 3C ) or another type of data structure to identify the index in the table associated with the value to identify the one or more SRS resources. In this case, the table in which the UE performs the lookup may indicate the (multiple) SRS resources and the order of the (multiple) SRS resources. In some aspects, the UE may identify the one or more SRS resources by performing a lookup to identify a row in a subset of the table configured by the BS and indicated in the RRC communication or the MAC-CE communication.

[0070] In certain aspects, the UE may map the TPMI index and / or (multiple) SRS resources to one or more repetitions of the PUSCH transmission. For example, the UE may map a first TPMI index and / or a first SRS resource to a first repetition of the PUSCH transmission, may map a second TPMI index and / or a second SRS resource to a second repetition of the PUSCH transmission, and so on. The UE may map the TPMI index to (multiple) repetitions of the PUSCH transmission based at least in part on the order of the TPMI indexes associated with the values ​​of the codepoint (e.g., as indicated in a table in which the UE performs a lookup). For example, the UE may map a first ordered TPMI index to a first repetition, and may map a second ordered TPMI index to a second repetition.

[0071] Similarly, the UE may map (multiple) SRS resources to (multiple) repetitions of the PUSCH transmission based at least in part on the order of (multiple) SRS resources associated with the value of the SRI code point (e.g., as indicated in a table in which the UE performs a lookup). For example, the UE may map a first-ranked SRS resource to a first repetition and may map a second-ranked SRS resource to a second repetition. In certain aspects, if the SRI code point indicates a single SRS resource, the UE may map the SRS resource to each repetition scheduled by the downlink communication.

[0072] In addition, the UE may determine whether the SRS resource indicated by the SRI code point is mapped to one or two TPMI indexes based at least in part on whether the srs-ResourceIndicator field or the SRI field including the SRI code point is configured with 2-TPMI. In this case, the UE may determine that the SRS resource is mapped to two TPMIs based at least in part on determining that the srs-ResourceIndicator field or the SRI field is configured with 2-TPMI. The UE may determine that the SRS resource is mapped to one TPMI based at least in part on determining that the srs-ResourceIndicator field or the SRI field is not configured with 2-TPMI.

[0073] In certain aspects, the UE may use various techniques to map TPMI indices and / or SRS resources to repetitions of a PUSCH transmission, where the number of repetitions exceeds the number of TPMI indices and / or the number of SRS resources. Figure 3E and Figure 3F Certain example techniques are shown. However, other techniques may be used. The mapping of TPMI indices and / or SRS resources to repetitions of PUSCH transmissions (where the number of repetitions exceeds the number of TPMI indices and / or the number of SRS resources may be fixed (e.g., configured or encoded in the specification or at the UE)) may be semi-statically configured via RRC signaling, may be dynamically configured via MAC-CE or DCI signaling, etc.

[0074] like Figure 3E As shown, an example mapping of TPMI indexes and / or SRS resources may include alternating mapping of TPMI indexes and / or SRS resources to repetitions of PUSCH transmissions. In this example, the UE may alternate between TPMI 1 / SRS resource 1 and TPMI 2 / SRS resource 2 for repetitions 1 to 4. In particular, the UE may map TPMI 1 / SRS resource 1 to repetition 1, may map TPMI 2 / SRS resource 2 to repetition 2, may map TPMI 1 / SRS resource 1 to repetition 3, and may map TPMI 2 / SRS resource 2 to repetition 4. Thus, TPMI 1 / SRS resource 1 is mapped to odd repetitions, and TPMI 2 / SRS resource 2 is mapped to even repetitions. In other examples, TPMI 2 / SRS resource 2 is mapped to odd repetitions, and TPMI 1 / SRS resource 1 is mapped to even repetitions.

[0075] like Figure 3FAs shown, example mappings of TPMI indexes and / or SRS resources may include group mappings of TPMI indexes and / or SRS resources to repetitions of PUSCH transmissions. In this example, the UE may map TPMI 1 / SRS resource 1 to a first repetition group (e.g., repetitions 1 and 2), and may map TPMI 2 / SRS resource 2 to a second (subsequent) repetition group (e.g., repetitions 3 and 4). In other examples, TPMI 2 / SRS resource 2 is mapped to a first repetition group, and TPMI 1 / SRS resource 1 is mapped to a second repetition group.

[0076] like Figure 3G As shown, the UE may determine a redundancy version (RV) for each repetition of a PUSCH transmission. The RV for the repetition may be used to rate match the payload of the PUSCH transmission in the repetition. In certain aspects, the UE may determine the RV for the repetition based at least in part on the TPMI index and / or SRS resource mapped to the repetition. In this case, each TPMI index and / or SRS resource may be associated with an RV sequence, and the RV for the repetition may be based at least in part on the RV sequence mapped to the TPMI index and / or SRS resource mapped to the repetition. As an example, Figure 3G As shown, a first TPMI and a first SRS resource (e.g., TPMI 1 / SRS resource 1) may be associated with a first RV sequence (e.g., 0→2→3→1), and a second TPMI and a second SRS resource (e.g., TPMI 2 / SRS resource 2) may be associated with a second RV sequence (e.g., 3→1→0→2).

[0077] In this case, the second RV sequence is essentially the same RV sequence as the first RV sequence, but is configured with an RV offset value such that the starting point of the second RV sequence is shifted relative to the first RV sequence. Since the RV offset value causes the second RV sequence to be shifted relative to the first RV sequence, the likelihood of sending adjacent repetitions using the same RV is reduced or eliminated. In some aspects, the first RV sequence and the second RV sequence can be different RV sequences configured such that the likelihood of sending adjacent repetitions using the same RV is reduced or eliminated.

[0078] For example, Figure 3GAs shown, TPMI 1 / SRS resource 1 and TPMI 2 / SRS resource 2 may be mapped to repetitions 1 to 8 of PUSCH transmissions in an alternating manner, thereby mapping TPMI 1 / SRS resource 1 to odd repetitions and TPMI 2 / SRS resource 2 to even repetitions. The RV may be mapped to odd repetitions based at least in part on a first RV sequence associated with TPMI 1 / SRS resource 1, and the RV may be mapped to even repetitions based at least in part on a second RV sequence associated with TPMI 2 / SRS resource 2. Thus, the RV mapping may be RV 0 for repetition 1, RV 3 for repetition 2, RV 2 for repetition 3, RV 1 for repetition 4, RV 3 for repetition 5, RV 0 for repetition 6, RV 1 for repetition 7, and RV 2 for repetition 8. Thus, due to the RV offset value, no adjacent repetitions are assigned the same RV.

[0079] In certain aspects, the UE may configure redundant versions for repetitions of PUSCH transmissions. The PUSCH transmissions may be codebook-based or non-codebook-based. In these examples, the UE may receive a downlink communication from the BS that schedules a first repetition set of PUSCH transmissions associated with a first uplink beam (e.g., as described above, the first repetition set is associated with the same spatial domain transmission filter) and a second repetition set of PUSCH transmissions associated with a second uplink beam (e.g., as described above, the second repetition set is associated with the same spatial domain transmission filter, which may be different from the spatial domain transmission filter of the first repetition set). The UE may configure a corresponding redundant version for the first repetition set based at least in part on a first redundant version sequence associated with the first uplink beam, and may configure a corresponding redundant version for the second repetition set based at least in part on a second redundant version sequence associated with the second uplink beam.

[0080] Thus, the ability to indicate multiple TPMI indexes and / or multiple SRS resources in a single downlink communication allows the BS to configure multiple repetitions of a codebook-based PUSCH transmission with different precoders, different SRS resources, and / or other parameters while reducing or minimizing signaling overhead. The ability to configure repetitions of a codebook-based PUSCH transmission with different precoders, different SRS resources, and / or other parameters allows the repetitions to be beamformed and / or otherwise optimized for different channel conditions (e.g., multi-TRP channel conditions, multi-panel channel conditions, multi-antenna channel conditions, etc.), which improves the performance and reliability of PUSCH transmissions.

[0081] As mentioned above, providing Figure 3A-3G As one or more examples. Other examples may be related to Figure 3A-3GThe examples described are different.

[0082] Figure 4 4 is a diagram illustrating an example process 400, performed, for example, by a UE, in accordance with various aspects of the present disclosure. Example process 400 is an example of a UE (eg, UE 120) performing operations associated with TPMI and / or SRI indication for codebook-based PUSCH repetitions.

[0083] like Figure 4 As shown, in certain aspects, process 400 may include receiving a downlink communication that includes one or more code points indicating a plurality of TPMI indexes (block 410). For example, as described above, a UE (e.g., using antenna 252, DEMOD 254, MIMO detector 256, receive processor 258, controller / processor 280, memory 282, etc.) may receive a downlink communication that includes one or more code points indicating a plurality of TPMI indexes.

[0084] like Figure 4 As further shown, in certain aspects, process 400 may include identifying, based at least in part on one or more code points, a first TPMI index for a first repetition of a PUSCH transmission from a plurality of TPMI indexes, wherein the PUSCH transmission is a codebook-based PUSCH transmission (block 420). As described above, for example, the UE (e.g., using receive processor 258, transmit processor 264, controller / processor 280, memory 282, etc.) may identify, based at least in part on one or more code points, a first TPMI index for a first repetition of a PUSCH transmission from a plurality of TPMI indexes. In certain aspects, the PUSCH transmission is a codebook-based PUSCH transmission.

[0085] Process 400 may include additional aspects, such as any single aspect or any combination of aspects described below and / or in combination with one or more other processes described elsewhere herein.

[0086] In a first aspect, the one or more code points include a single code point indicating a plurality of TPMI indexes in a precoding information and layer number field of a downlink communication; and the process 400 further includes: identifying a second TPMI index for a second repetition of a PUSCH transmission in the plurality of TPMI indexes based at least in part on the one or more code points. In a second aspect, alone or in combination with the first aspect, the code point indicates a same number of layers for the first repetition of the PUSCH transmission and the second repetition of the PUSCH transmission.

[0087] In a third aspect, alone or in combination with one or more of the first and second aspects, the order of the first TPMI index and the second TPMI index is indicated by a row in a table associated with the value indicated by the code point. In a fourth aspect, alone or in combination with one or more of the first to third aspects, the reverse order of the first TPMI index and the second TPMI index is indicated by another row in the table associated with another code point value. In a fifth aspect, alone or in combination with one or more of the first to fourth aspects, identifying the first TPMI index and the second TPMI index includes identifying a row in the table specifying the first TPMI index and the second TPMI index based at least in part on the value indicated by the code point.

[0088] In a sixth aspect, alone or in combination with one or more of aspects 1 to 5, identifying the first TPMI index and the second TPMI index comprises identifying a row from a subset of rows of a table indicated in a radio resource control communication or a medium access control element communication. In a seventh aspect, alone or in combination with one or more of aspects 1 to 6, the one or more code points comprise: a first code point indicating a first TPMI index in a first precoding information and layer number field of a downlink communication, and a second code point indicating a second TPMI index among a plurality of TPMI indexes in a second precoding information and layer number field of a downlink communication.

[0089] In an eighth aspect, alone or in combination with one or more of the first to seventh aspects, the downlink communication includes an SRI code point indicating one or more SRS resources for PUSCH transmission using a codebook. In a ninth aspect, alone or in combination with one or more of the first to eighth aspects, multiple SRS resources are indicated; and process 400 also includes identifying a second TPMI index for a second repetition of PUSCH transmission in a plurality of TPMI indexes based at least in part on the one or more code points; and identifying a first SRS resource for a first repetition of PUSCH transmission in a plurality of SRS resources based at least in part on the SRI code point, and identifying a second SRS resource for a second repetition of PUSCH transmission in a plurality of SRS resources.

[0090] In a tenth aspect, alone or in combination with one or more of the first and ninth aspects, the order of the first SRS resource and the second SRS resource is indicated by a row in a table associated with the value indicated by the SRI code point. In an eleventh aspect, alone or in combination with one or more of the first to tenth aspects, the reverse order of the first SRS resource and the second SRS resource is indicated by another row in a table associated with another SRI code point value.

[0091] In a twelfth aspect, alone or in combination with one or more of the first to eleventh aspects, identifying the first SRS resource and the second SRS resource includes identifying rows in a table specifying the first SRS resource and the second SRS resource based at least in part on a value indicated by an SRI code point.

[0092] In the thirteenth aspect, alone or in combination with one or more of the first to twelfth aspects, process 400 further includes: identifying spatial relationship information associated with the first SRS resource as a spatial domain transmission filter to be used for a first repetition of PUSCH transmission; and identifying spatial relationship information associated with the second SRS resource as a spatial domain transmission filter to be used for a second repetition of PUSCH transmission. In the fourteenth aspect, alone or in combination with one or more of the first to thirteenth aspects, process 400 further includes: identifying the number of SRS ports associated with the first SRS resource as the number of transmit antenna ports to be used for the first repetition of PUSCH transmission, wherein the first TPMI index is interpreted at least in part based on the first SRS resource; and identifying the number of SRS ports associated with the second SRS resource as the number of transmit antenna ports to be used for the second repetition of PUSCH transmission, wherein the second TPMI index is interpreted at least in part based on the second SRS resource.

[0093] In a fifteenth aspect, alone or in combination with one or more of the first to fourteenth aspects, the SRI code point indicates a single SRS resource; and process 400 further includes identifying, based at least in part on the SRI code point, SRS resources for a first repetition of PUSCH transmission and a second repetition of PUSCH transmission. In a sixteenth aspect, alone or in combination with one or more of the first to fifteenth aspects, identifying a first TPMI index comprises identifying a row in a first table specifying a first TPMI index based at least in part on a value indicated by a code point in one or more code points, or identifying a row in a first table specifying multiple TPMI indexes based at least in part on a value indicated by a code point, wherein the first TPMI index is ranked first among multiple TPMI indexes in the row.

[0094] In a seventeenth aspect, alone or in combination with one or more of the first to sixteenth aspects, a second TPMI index for a second repetition of PUSCH transmission in a plurality of TPMI indexes is identified based at least in part on one or more code points; and an SRS resource for a first repetition of PUSCH transmission and a second repetition of PUSCH transmission in one or more SRS resources is identified based at least in part on an SRI code point. In an eighteenth aspect, alone or in combination with one or more of the first to seventeenth aspects, process 400 further includes identifying spatial relationship information associated with the SRS resource as a spatial domain transmission filter to be used for the first repetition of PUSCH transmission and the second repetition of PUSCH transmission.

[0095] In a nineteenth aspect, alone or in combination with one or more of the first to eighteenth aspects, an SRS resource is identified in a radio resource control communication among a plurality of candidate SRS resources that are allowed to be associated with a plurality of TPMI indexes. In a twentieth aspect, alone or in combination with one or more of the first to nineteenth aspects, an SRS resource is associated with a first TPMI index and a second TPMI index; and identifying the first TPMI index and the second TPMI index comprises identifying rows in a table specifying the first TPMI index and the second TPMI index based at least in part on values ​​indicated by one or more code points.

[0096] In a twenty-first aspect, alone or in combination with one or more of the first to twentieth aspects, the SRI code point indicates a single SRS resource; and process 400 further includes identifying, based at least in part on the SRI code point, SRS resources for a first repetition of PUSCH transmission and a second repetition of PUSCH transmission. In a twenty-second aspect, alone or in combination with one or more of the first to twenty-first aspects, identifying a first TPMI index comprises identifying a row in a first table specifying a first TPMI index based at least in part on a value indicated by a code point in one or more code points, or identifying a row in a first table specifying multiple TPMI indexes based at least in part on a value indicated by a code point, wherein the first TPMI index is ranked first among multiple TPMI indexes in the row.

[0097] In aspect twenty-third, alone or in combination with one or more of aspects one to twenty-second, the SRI code point may be configured by radio resource control signaling to indicate one SRS resource or multiple SRS resources based at least in part on the UE capabilities of the UE. In aspect twenty-fourth, alone or in combination with one or more of aspects one to twenty-third, process 400 further includes: identifying a first SRS resource for a first repetition of a PUSCH transmission among multiple SRS resources based at least in part on the SRI code point; identifying a second TPMI index among multiple TPMI indexes for a second repetition of the PUSCH transmission, based at least in part on one or more code points, and identifying a second SRS resource among multiple SRS resources based at least in part on the SRI code point; and identifying a TPMI index and a first SRS resource for a third repetition of the PUSCH transmission.

[0098] In the twenty-fifth aspect, alone or in combination with one or more of the first to twenty-fourth aspects, the mapping of the first TPMI index and the first SRS resource to the first repetition and to the third repetition, and the mapping of the second TPMI index and the second SRS resource to the second repetition are at least partially based on the fixed alternating mapping of the first TPMI index, the first SRS resource, the second TPMI index, and the second SRS resource. In the twenty-sixth aspect, alone or in combination with one or more of the first to twenty-fifth aspects, the mapping of the first TPMI index and the first SRS resource to the first repetition and to the third repetition, and the mapping of the second TPMI index and the second SRS resource to the second repetition are at least partially based on the mapping of the first TPMI index, the first SRS resource, the second TPMI index, and the second SRS resource indicated in the radio resource control communication or the downlink control information communication.

[0099] In aspect 27, alone or in combination with one or more of aspects 1 to 26, process 400 further comprises: configuring corresponding redundant versions for a first repetition of PUSCH transmission and a third repetition of PUSCH transmission based at least in part on a redundant version sequence; and configuring a redundant version for a second repetition of PUSCH transmission based at least in part on an offset value applied to the redundant version sequence. In aspect 28, alone or in combination with one or more of aspects 1 to 27, the downlink communication is a DCI communication; one or more code points are indicated in a precoding information and layer number field in the DCI communication; and the SRI code point is indicated in an SRI field in the DCI communication.

[0100] In the twenty-ninth aspect, alone or in combination with one or more of the first to twenty-eighth aspects, PUSCH transmission is configured by an authorization configuration of an uplink configuration; downlink communication is an RRC communication that configures the authorization configuration of the uplink configuration; one or more code points are indicated in the precodingAndNumberOfLayers field in the RRC communication; and the SRI code point is indicated in the srs-ResourceIndicator field in the RRC communication. In the thirtieth aspect, alone or in combination with one or more of the first to twenty-ninth aspects, PUSCH transmission is configured by an authorization configuration of an uplink configuration via a radio resource control communication; the downlink communication is a DCI communication that activates the authorization configuration of the uplink configuration; one or more code points are indicated in the precoding information and number of layers field in the DCI communication; and the SRI code point is indicated in the SRI field in the DCI communication.

[0101] although Figure 4 Example blocks of process 400 are shown, but in some aspects, process 400 may include Figure 4 Additional blocks, fewer blocks, different blocks, or differently arranged blocks than those depicted in process 400. Additionally or alternatively, two or more blocks in process 400 may be executed in parallel.

[0102] Figure 5 is a diagram illustrating an example process 500 performed, for example, by a user equipment (UE) in accordance with various aspects of the present disclosure. Example process 500 is an example of a UE (eg, UE 120) performing operations associated with TPMI and / or SRI indication for codebook-based PUSCH repetitions.

[0103] like Figure 5 As shown, in certain aspects, process 500 may include receiving a downlink communication that schedules a first repetition set of PUSCH transmissions associated with a first uplink beam and a second repetition set of PUSCH transmissions associated with a second uplink beam (block 510). For example, as described above, a UE (e.g., Figure 7 As described, using receiving component 702), downlink communications can be received, which schedule a first repetition set of PUSCH transmissions associated with a first uplink beam and a second repetition set of PUSCH transmissions associated with a second uplink beam.

[0104] like Figure 5 As further shown, in certain aspects, process 500 may include configuring a corresponding redundancy version for a first repetition set based at least in part on a first redundancy version sequence associated with a first uplink beam (block 520). Figure 7As described, using configuration component 708) can configure a corresponding redundancy version for a first repetition set based at least in part on a first redundancy version sequence associated with a first uplink beam.

[0105] like Figure 5 As further shown, in certain aspects, process 500 may include configuring a corresponding redundancy version for a second repetition set based at least in part on a second redundancy version sequence associated with a second uplink beam (block 530). Figure 7 As described, using configuration component 708) can configure a corresponding redundancy version for a second repetition set based at least in part on a second redundancy version sequence associated with a second uplink beam.

[0106] Process 500 may include additional aspects, such as any single aspect or any combination of aspects described below and / or in combination with one or more other processes described elsewhere herein.

[0107] In a first aspect, a second redundant sequence comprises a first redundant sequence having a starting point shifted based at least in part on a redundant version offset.

[0108] although Figure 5 Example blocks of process 500 are shown, but in some aspects, process 500 may include Figure 5 Additional blocks, fewer blocks, different blocks, or differently arranged blocks than those depicted in process 500. Additionally or alternatively, two or more blocks in process 500 may be executed in parallel.

[0109] Figure 6 6 is a diagram of an example apparatus 600 for wireless communication. Apparatus 600 may be a UE, or a UE may include apparatus 600. In certain aspects, apparatus 600 includes a receiving component 602 and a sending component 604, which may communicate with each other (e.g., via one or more buses and / or one or more other components). As shown, apparatus 600 may communicate with another apparatus 606 (such as a UE, a base station, or another wireless communication device) using receiving component 602 and sending component 604. As further shown, in other examples, apparatus 600 may include an identification component 608 and / or a configuration component 610.

[0110] In some aspects, the apparatus 600 may be configured to incorporate Figure 3A-3G Additionally or alternatively, the apparatus 600 may be configured to perform one or more processes described herein, such as Figure 4 The process 400. In some aspects, Figure 6 The device 600 and / or one or more components shown may include the above combined Figure 2 Additionally or alternatively, Figure 6 One or more of the components shown in the above may be combined Figure 2 Additionally or alternatively, one or more components in the component set may be implemented at least in part as software stored in a memory. For example, a component (or a portion of a component) may be implemented as instructions or codes stored in a non-transitory computer-readable medium and executable by a controller or processor to perform the function or operation of the component.

[0111] The receiving component 602 may receive communications, such as reference signals, control information, data communications, or combinations thereof, from the apparatus 606. The receiving component 602 may provide the received communications to one or more other components of the apparatus 600. In some aspects, the receiving component 602 may perform signal processing (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, demapping, equalization, interference cancellation, or decoding) on ​​the received communications and may provide the processed signals to one or more other components of the apparatus 606. In some aspects, the receiving component 602 may include a combination of the above. Figure 2 One or more antennas, demodulators, MIMO detectors, receive processors, controllers / processors, memories, or combinations thereof of a UE are described.

[0112] The transmitting component 604 may transmit communications, such as reference signals, control information, data communications, or a combination thereof, to the device 606. In some aspects, one or more other components of the device 606 may generate communications and may provide the generated communications to the transmitting component 604 for transmission to the device 606. In some aspects, the transmitting component 604 may perform signal processing (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, etc.) on the generated communications and may transmit the processed signals to the device 606. In some aspects, the transmitting component 604 may include a combination of the above. Figure 2 One or more antennas, modulators, transmit MIMO processors, transmit processors, controllers / processors, memories, or combinations thereof of the described UE. In some aspects, the transmit component 604 can be co-located with the receive component 602 in a transceiver.

[0113] Receiving component 602 can receive downlink communications (e.g., from device 606) that include one or more code points indicating a plurality of TPMI indexes. Identifying component 608 can identify, based at least in part on the one or more code points, a first TPMI index for a first repetition of a PUSCH transmission in the plurality of TPMI indexes, wherein the PUSCH transmission is a codebook-based PUSCH transmission.

[0114] The identification component 608 may identify a first SRS resource for a first repetition of a PUSCH transmission in the plurality of SRS resources based at least in part on the SRI code point. For a second repetition of the PUSCH transmission, the identification component 608 may identify a second TPMI index in the plurality of TPMI indexes based at least in part on the one or more code points, and identify a second SRS resource in the plurality of SRS resources based at least in part on the SRI code point. The identification component 608 may identify a first TPMI index and a first SRS resource, and a first TPMI index and a first SRS resource for a third repetition of the PUSCH transmission.

[0115] Configuration component 610 may configure respective redundancy versions for a first repetition of the PUSCH transmission and a third repetition of the PUSCH transmission based at least in part on the redundancy version sequence.Configuration component 610 may configure a redundancy version for a second repetition of the PUSCH transmission based at least in part on an offset value applied to the redundancy version sequence.

[0116] Identifying component 608 can identify spatial relation information associated with a first SRS resource as a spatial domain transmission filter to be used for a first repetition of PUSCH transmission.Identifying component 608 can identify spatial relation information associated with a second SRS resource as a spatial domain transmission filter to be used for a second repetition of PUSCH transmission.

[0117] The identifying component 608 may identify a second TPMI for a second repetition of the PUSCH transmission in the plurality of TPMI indexes based at least in part on the one or more code points. The identifying component 608 may identify an SRS resource for a first repetition of the PUSCH transmission and a second repetition of the PUSCH transmission in the one or more SRS resources based at least in part on the SRI code point. The identifying component 608 may identify spatial relationship information associated with the SRS resource as a spatial domain transmission filter to be used for the first repetition of the PUSCH transmission and the second repetition of the PUSCH transmission.

[0118] Figure 6 The number and arrangement of components shown in are provided as examples. Figure 6 There may be more components, fewer components, different components, or components arranged differently than those shown in FIG. Figure 6 Two or more components shown in may be implemented in a single component, or Figure 6 The single component shown in can be implemented as multiple distributed components. Additionally or alternatively, Figure 6 The assembly of (one or more) components shown in the figure may perform one or more functions described by Figure 6 Another component set shown in is executed.

[0119] Figure 7 700 is a diagram of an example apparatus 700 for wireless communication. Apparatus 700 may be a UE, or a UE may include apparatus 700. In certain aspects, apparatus 700 includes a receiving component 702 and a transmitting component 704, which may communicate with each other (e.g., via one or more buses and / or one or more other components). As shown, apparatus 700 may communicate with another apparatus 706 (such as a UE, a base station, or another wireless communication device) using receiving component 702 and transmitting component 704. As further shown, apparatus 700 may include a configuration component 708.

[0120] In some aspects, the apparatus 700 may be configured to incorporate Figure 3A-3G Additionally or alternatively, the apparatus 700 may be configured to perform one or more processes described herein, such as Figure 5 The process 500. In some aspects, Figure 7 The device 700 and / or one or more components shown may include the above combined Figure 2 Additionally or alternatively, Figure 7 One or more of the components shown in the above may be combined Figure 2 Additionally or alternatively, one or more components in the component set may be implemented at least in part as software stored in a memory. For example, a component (or a portion of a component) may be implemented as instructions or codes stored in a non-transitory computer-readable medium and executable by a controller or processor to perform the function or operation of the component.

[0121] The receiving component 702 may receive communications, such as reference signals, control information, data communications, or combinations thereof, from the apparatus 706. The receiving component 702 may provide the received communications to one or more other components of the apparatus 700. In some aspects, the receiving component 702 may perform signal processing (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, demapping, equalization, interference cancellation, or decoding) on ​​the received communications and may provide the processed signals to one or more other components of the apparatus 706. In some aspects, the receiving component 702 may include a combination of the above. Figure 2 One or more antennas, demodulators, MIMO detectors, receive processors, controllers / processors, memories, or combinations thereof of a UE are described.

[0122] The transmission component 704 may transmit communications, such as reference signals, control information, data communications, or a combination thereof, to the device 706. In some aspects, one or more other components of the device 706 may generate communications and may provide the generated communications to the transmission component 704 for transmission to the device 706. In some aspects, the transmission component 704 may perform signal processing (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, etc.) on the generated communications and may transmit the processed signals to the device 706. In some aspects, the transmission component 704 may include a combination of the above. Figure 2 One or more antennas, modulators, transmit MIMO processors, transmit processors, controllers / processors, memories, or combinations thereof of the described UE. In some aspects, the transmit component 704 can be co-located with the receive component 702 in a transceiver.

[0123] Receiving component 702 may receive downlink communications (e.g., from device 706) that schedule a first repetition set of PUSCH transmissions associated with a first uplink beam and a second repetition set of PUSCH transmissions associated with a second uplink beam. Configuration component 708 may configure a corresponding redundancy version for the first repetition set based at least in part on a first redundancy version sequence associated with the first uplink beam. Configuration component 708 may configure a corresponding redundancy version for the second repetition set based at least in part on a second redundancy version sequence associated with the second uplink beam.

[0124] Figure 7 The number and arrangement of components shown in are provided as examples. Figure 7 There may be additional components, fewer components, different components, or a different arrangement of components than those shown in FIG. Figure 7 Two or more components shown in may be implemented in a single component, or Figure 7 The single component shown in can be implemented as multiple distributed components. Additionally or alternatively, Figure 7 The assembly of (one or more) components shown in the figure may perform one or more functions described by Figure 7 Another component set shown in is executed.

[0125] The following provides an overview of various aspects of the present disclosure:

[0126] Aspect 1: A wireless communication method performed by a user equipment (UE) includes: receiving a downlink communication, the downlink communication including one or more code points indicating a plurality of transmit precoder matrix indicator (TPMI) indexes; and identifying a first TPMI for a first repetition of a physical uplink shared channel (PUSCH) transmission among the plurality of TPMI indexes based at least in part on the one or more code points, wherein the PUSCH transmission is a codebook-based PUSCH transmission.

[0127] Aspect 2: The method according to aspect 1, wherein the one or more code points include: a first code point indicating a first TPMI index in a first precoding information and layer number field of a downlink communication, and a second code point indicating a second TPMI index among a plurality of TPMI indexes in a second precoding information and layer number field of a downlink communication. Aspect 3: The method according to aspect 1, wherein the one or more code points include a single code point indicating a plurality of TPMI indexes in a precoding information and layer number field of a downlink communication; and wherein the method further includes: identifying a second TPMI index for a second repetition of a PUSCH transmission among the plurality of TPMI indexes based at least in part on the one or more code points.

[0128] Aspect 4: The method according to Aspect 3, wherein the code point indicates the same number of layers for the first repetition of PUSCH transmission and the second repetition of PUSCH transmission. Aspect 5: The method according to Aspect 3 or 4, wherein the order of the first TPMI index and the second TPMI index is indicated by a row in a table associated with the value indicated by the code point. Aspect 6: The method according to Aspect 5, wherein the reverse order of the first TPMI index and the second TPMI index is indicated by another row in the table associated with another code point value.

[0129] Aspect 7: A method according to any one of Aspects 3-6, wherein identifying the first TPMI index and the second TPMI index includes: identifying the rows of the specified first TPMI index and the second TPMI index in the table based at least in part on the values ​​indicated by the code points, wherein identifying the first TPMI index and the second TPMI index includes: identifying the row from a subset of the rows of the table indicated in the radio resource control communication or the medium access control element communication.

[0130] Aspect 8: A method according to any one of Aspects 1-7, wherein the downlink communication includes a sounding reference signal (SRS) resource indicator (SRI) code point indicating one or more SRS resources whose use is set to a codebook for PUSCH transmission. Aspect 9: The method according to Aspect 8 further includes: identifying a first SRS resource for a first repetition of PUSCH transmission among multiple SRS resources based at least in part on the SRI code point; identifying a second TPMI index among multiple TPMI indexes for a second repetition of PUSCH transmission based at least in part on the one or more code points, and identifying a second SRS resource among multiple SRS resources based at least in part on the SRI code point; and identifying the first TPMI index and the first SRS resource for a third repetition of PUSCH transmission.

[0131] Aspect 10: The method according to Aspect 9, wherein the mapping of the first TPMI index and the first SRS resource to the first repetition and to the third repetition, and the mapping of the second TPMI index and the second SRS resource to the second repetition are based at least in part on the mapping of the first TPMI index, the first SRS resource, the second TPMI index, and the second SRS resource indicated in the radio resource control communication or the downlink control information communication. Aspect 11: The aspect according to Aspect 9 or 10, further comprising: configuring corresponding redundancy versions for the first repetition of PUSCH transmission and the third repetition of PUSCH transmission based at least in part on a redundancy version sequence; and configuring a redundancy version for the second repetition of PUSCH transmission based at least in part on an offset value applied to the redundancy version sequence.

[0132] Aspect 12: A method according to any one of claims 9-11, wherein PUSCH transmission is configured by a grant configuration of an uplink configuration; wherein the downlink communication is a radio resource control (RRC) communication that configures the grant configuration of the uplink configuration; wherein one or more code points are indicated in the precodingAndNumberOfLayers field in the RRC communication; and wherein the SRI code point is indicated in the srs-ResourceIndicator field in the RRC communication. Aspect 13: A method according to any one of claims 9-12, wherein PUSCH transmission is configured by a grant configuration of the uplink configuration via a radio resource control communication; wherein the downlink communication is a downlink control information (DCI) communication that activates the grant configuration of the uplink configuration; wherein one or more code points are indicated in the precoding information and number of layers field in the DCI communication; and wherein the SRI code point is indicated in the SRI field in the DCI communication.

[0133] Aspect 14: A method according to any one of Aspects 9-13, wherein the mapping of the first TPMI index and the first SRS resource to the first repetition and to the third repetition, and the mapping of the second TPMI index and the second SRS resource to the second repetition are at least partially based on a fixed alternating mapping of the first TPMI index, the first SRS resource, the second TPMI index and the second SRS resource.

[0134] Aspect 15: A method according to Aspect 8, wherein the SRI code point indicates a plurality of SRS resources; and wherein the method further comprises: identifying a second TPMI index for a second repetition of PUSCH transmission in a plurality of TPMI indexes based at least in part on the one or more code points; and identifying a first SRS resource for a first repetition of PUSCH transmission in a plurality of SRS resources based at least in part on the SRI code point, and identifying a second SRS resource for a second repetition of PUSCH transmission in a plurality of SRS resources. Aspect 16: A method according to Aspect 15, wherein the order of the first SRS resource and the second SRS resource is indicated by a row in a table associated with a value indicated by the SRI code point; and wherein the reverse order of the first SRS resource and the second SRS resource is indicated by another row in the table associated with another SRI code point value.

[0135] Aspect 17: A method according to Aspect 15 or 16, wherein identifying the first SRS resource and the second SRS resource comprises: identifying a row in a table specifying the first SRS resource and the second SRS resource based at least in part on a value indicated by an SRI code point. Aspect 18: A method according to any one of Aspects 15-17, further comprising: identifying spatial relationship information associated with the first SRS resource as a spatial domain transmission filter to be used for a first repetition of PUSCH transmission; and identifying spatial relationship information associated with the second SRS resource as a spatial domain transmission filter to be used for a second repetition of PUSCH transmission.

[0136] Aspect 19: The method according to Aspect 8, wherein the SRI code point indicates a single SRS resource; and wherein the method further comprises: identifying the SRS resources for the first repetition of the PUSCH transmission and the second repetition of the PUSCH transmission based at least in part on the SRI code point. Aspect 20: The method according to Aspect 19, wherein identifying the first TPMI index comprises: identifying a row in the first table specifying the first TPMI index based at least in part on a value indicated by one of the one or more code points, or identifying a row in the first table specifying multiple TPMI indexes based at least in part on a value indicated by the code point, wherein the first TPMI index is ranked first among the multiple TPMI indexes in the row.

[0137] Aspect 21: The method according to any one of Aspects 8-20, further comprising: identifying a second TPMI index for a second repetition of PUSCH transmission from among multiple TPMI indexes based at least in part on one or more code points; identifying an SRS resource for a first repetition of PUSCH transmission and a second repetition of PUSCH transmission from among one or more SRS resources based at least in part on an SRI code point; and identifying spatial relationship information associated with the SRS resource as a spatial domain transmission filter to be used for the first repetition of PUSCH transmission and the second repetition of PUSCH transmission. Aspect 22: The method according to Aspect 21, wherein the SRS resource is identified in a radio resource control communication from among a plurality of candidate SRS resources that are allowed to be associated with a plurality of TPMIs.

[0138] Aspect 23: A method according to Aspect 21 or 22, wherein the SRS resource is associated with a first TPMI index and a second TPMI index; and wherein identifying the first TPMI index and the second TPMI index comprises: identifying a row in a table specifying the first TPMI index and the second TPMI index based at least in part on a value indicated by one or more code points. Aspect 24: A method according to Aspect 8, wherein the SRI code point indicates a single SRS resource; wherein the method further comprises: identifying SRS resources for a first repetition of a PUSCH transmission and a second repetition of a PUSCH transmission based at least in part on the SRI code point; and wherein identifying the first TPMI index comprises: identifying a row in a first table specifying the first TPMI index based at least in part on a value indicated by one of the one or more code points, or identifying a row in a first table specifying multiple TPMI indexes based at least in part on a value indicated by the code point, wherein the first TPMI index is ranked first among the multiple TPMI indexes in the row.

[0139] Aspect 25: A method according to any one of aspects 8-24, wherein the SRI code point can be configured by radio resource control signaling to indicate one SRS resource or multiple SRS resources based at least in part on the UE capabilities of the UE. Aspect 26: A method according to any one of aspects 8-25, wherein the downlink communication is a downlink control information (DCI) communication; wherein the one or more code points are indicated in the precoding information and layer number fields in the DCI communication; and wherein the SRI code point is indicated in the SRI field in the DCI communication.

[0140] Aspect 27: An apparatus for wireless communication at a device, comprising a processor, a memory coupled to the processor, and instructions stored in the memory and executable by the processor to cause the apparatus to perform the method of one or more aspects of aspects 1 to 26. Aspect 28: An apparatus for wireless communication, comprising a memory and one or more processors coupled to the memory, the memory and the one or more processors being configured to perform the method of one or more aspects of aspects 1 to 26.

[0141] Aspect 29: An apparatus for wireless communication, comprising at least one component for performing the method of one or more aspects of aspects 1-26. Aspect 30: A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by a processor to perform the method of one or more aspects of aspects 1-26. Aspect 31: A non-transitory computer-readable medium storing an instruction set for wireless communication, the instruction set comprising one or more instructions, which, when executed by one or more processors of a device, causes the device to perform the method of one or more aspects of aspects 1-26.

[0142] Aspect 32: A method of wireless communication performed by a user equipment (UE), comprising: receiving downlink communications that schedule a first repetition set of physical uplink shared channel (PUSCH) transmissions associated with a first uplink beam and a second repetition set of PUSCH transmissions associated with a second uplink beam; configuring a corresponding redundancy version for the first repetition set based at least in part on a first redundancy version sequence associated with the first uplink beam; and configuring a corresponding redundancy version for the second repetition set based at least in part on a second redundancy version sequence associated with the second uplink beam. Aspect 33: A method according to aspect 32, wherein the second redundant sequence includes a first redundant sequence having a starting point shifted at least in part based on a redundant version offset.

[0143] Aspect 34: An apparatus for wireless communication at a device, comprising a processor, a memory coupled to the processor, and instructions stored in the memory and executable by the processor to cause the apparatus to perform the method of one or more aspects of Aspect 32 or 33. Aspect 35: An apparatus for wireless communication, comprising a memory and one or more processors coupled to the memory, the memory and the one or more processors being configured to perform the method of one or more aspects of Aspect 32 or 33.

[0144] Aspect 36: An apparatus for wireless communication, comprising at least one component for performing the method of one or more aspects of Aspect 32 or 33. Aspect 37: A non-transitory computer-readable medium storing a code for wireless communication, the code comprising instructions executable by a processor to perform the method of one or more aspects of Aspect 32 or 33. Aspect 38: A non-transitory computer-readable medium storing an instruction set for wireless communication, the instruction set comprising one or more instructions, which when executed by one or more processors of a device, causes the device to perform the method of one or more aspects of Aspect 32 or 33.

[0145] The above disclosure provides illustration and description, but is not intended to be exhaustive or to limit the aspects to the precise forms disclosed. Modifications and variations may be made in light of the above disclosure, or may be acquired from practice of the various aspects.

[0146] As used herein, the term "component" is intended to be broadly interpreted as hardware, firmware, or a combination of hardware and software. As used herein, a processor is implemented in hardware, firmware, and / or a combination of hardware and software.

[0147] As used herein, satisfying a threshold may refer to a value greater than a threshold, greater than or equal to a threshold, less than a threshold, less than or equal to a threshold, equal to a threshold, not equal to a threshold, etc., depending on the context.

[0148] Obviously, the systems and / or methods described herein can be implemented in various forms of hardware, firmware, and / or a combination of hardware and software. The actual dedicated control hardware or software code used to implement these systems and / or methods does not limit these aspects. Therefore, the operation and behavior of the systems and / or methods are described herein without reference to specific software code - it should be understood that software and hardware can be designed to implement the systems and / or methods based at least in part on the description herein.

[0149] Even if the specific combination of features is described in the claims and / or disclosed in the specification, these combinations are not intended to limit the disclosure of each aspect. In fact, many of these features can be combined in a way that the claims are not described and / or the specification is not disclosed. Although each dependent claim listed below may only be directly subordinate to one claim, the disclosure of each aspect includes each dependent claim combined with each other claim in the claim set. The phrase "at least one" related to the list of items refers to any combination of those items, including a single member. As an example, "at least one of a, b or c" is intended to cover a, b, c, ab, ac, bc and abc, and any combination with multiple identical elements (for example, aa, aaa, aab, aac, abb, acc, bb, bbb, bbc, cc and ccc or any other order of a, b and c).

[0150] Unless explicitly stated, any element, action or instruction used herein should not be understood as key or necessary. In addition, as used herein, the articles "a" and "an" are intended to include one or more items, and can be used interchangeably with "one or more". In addition, as used herein, the terms "set" and "group" are intended to include one or more items (e.g., related items, unrelated items, combinations of related and unrelated items, etc.), and can be used interchangeably with "one or more". If only one item is intended to be used, phrases "only one" or similar language are used. In addition, as used herein, the terms "have", "have", "containing", etc. are intended to be open terms. In addition, the phrase "based on" is intended to represent "based at least in part", unless explicitly stated otherwise.

Claims

1. A method of wireless communication performed by a user equipment UE, comprising: receiving a downlink communication comprising one or more code points indicating a plurality of transmit precoder matrix indicators (TPMI) indexes, wherein the one or more code points comprise a single code point indicating the plurality of TPMI indexes in a precoding information and number of layers field of the downlink communication; and identifying a first TPMI index for a first repetition of a physical uplink shared channel (PUSCH) transmission from the plurality of TPMI indexes based at least in part on the one or more code points, and identifying a second TPMI index for a second repetition of the PUSCH transmission from the plurality of TPMI indexes, The PUSCH transmission is codebook-based PUSCH transmission.

2. The method according to claim 1, wherein: The single code point indicates a same layer number for a first repetition of the PUSCH transmission and a second repetition of the PUSCH transmission.

3. The method according to claim 1, wherein: The order of the first TPMI index and the second TPMI index is indicated by a row in a table for indicating TPMI indexes that is associated with the value indicated by the single code point.

4. The method according to claim 3, wherein: The reverse order of the first TPMI index and the second TPMI index is indicated by another row in the table associated with another code point value.

5. The method according to claim 1, wherein: Identifying the first TPMI index and the second TPMI index includes: identifying a row in a table indicating TPMI indexes that specifies the first TPMI index and the second TPMI index based at least in part on the value indicated by the single code point, Wherein, identifying the first TPMI index and the second TPMI index includes: The row is identified from the subset of rows of the table indicated in: Radio Resource Control communications, or Medium Access Control Element Communications.

6. The method according to claim 1, wherein: The downlink communication includes a sounding reference signal (SRS) resource indicator (SRI) code point indicating use of one or more SRS resources set to a codebook for the PUSCH transmission.

7. The method according to claim 6, further comprising: identifying, based at least in part on the SRI code point, a first SRS resource of a plurality of SRS resources for a first repetition of the PUSCH transmission; identifying, based at least in part on the SRI code point, a second SRS resource among the plurality of SRS resources for a second repetition of the PUSCH transmission; as well as For a third repetition of the PUSCH transmission, identifying: the first TPMI index, and The first SRS resource.

8. The method according to claim 7, wherein: The mapping of the first TPMI index and the first SRS resource to the first repetition and to the third repetition, and the mapping of the second TPMI index and the second SRS resource to the second repetition are based at least in part on the mapping of the first TPMI index, the first SRS resource, the second TPMI index, and the second SRS resource as indicated in: Radio Resource Control communications, or Downlink control information communication.

9. The method according to claim 7, further comprising: configuring a respective redundancy version for a first repetition of the PUSCH transmission and a third repetition of the PUSCH transmission based at least in part on a redundancy version sequence; as well as A redundancy version is configured for a second repetition of the PUSCH transmission based at least in part on an offset value applied to the redundancy version sequence.

10. The method according to claim 7, wherein: The PUSCH transmission is configured by a grant configuration of an uplink configuration; wherein the downlink communication is a radio resource control RRC communication of a grant configuration configuring the uplink configuration; wherein the one or more code points are indicated in a preocdingAndNumberOfLayers field in the RRC communication; and The SRI code point is indicated in the srs-ResourceIndicator field in the RRC communication.

11. The method according to claim 7, wherein: The PUSCH transmission is configured by a grant configuration of an uplink configuration via a radio resource control communication; wherein the downlink communication is downlink control information DCI communication of the authorization configuration that activates the uplink configuration; wherein the one or more code points are indicated in the precoding information and layer number field in the DCI communication; and The SRI code point is indicated in the SRI field in the DCI communication.

12. The method according to claim 7, wherein: The mapping of the first TPMI index and the first SRS resource to the first repetition and to the third repetition, and the mapping of the second TPMI index and the second SRS resource to the second repetition are based at least in part on a fixed alternating mapping of the first TPMI index, the first SRS resource, the second TPMI index, and the second SRS resource.

13. The method according to claim 6, wherein: The SRI code point indicates a plurality of SRS resources; and Wherein, the method further comprises: Based at least in part on the SRI code point: identifying a first SRS resource of the plurality of SRS resources for a first repetition of the PUSCH transmission, and A second SRS resource for a second repetition of the PUSCH transmission is identified among the plurality of SRS resources.

14. The method according to claim 13, wherein: The order of the first SRS resource and the second SRS resource is indicated by a row associated with a value indicated by the SRI code point in a table for indicating SRS resources; and The reverse order of the first SRS resource and the second SRS resource is indicated by another row in the table associated with another SRI code point value.

15. The method according to claim 13, wherein: Identifying the first SRS resource and the second SRS resource includes: Based at least in part on the value indicated by the SRI code point, a row in a table indicating SRS resources that specifies the first SRS resource and the second SRS resource is identified.

16. The method according to claim 13, further comprising: identifying spatial relationship information associated with the first SRS resource as a spatial domain transmit filter to be used for a first repetition of the PUSCH transmission; as well as Spatial relationship information associated with the second SRS resource is identified as a spatial domain transmit filter to be used for a second repetition of the PUSCH transmission.

17. The method according to claim 6, wherein: The SRI code point indicates a single SRS resource; and Wherein, the method further comprises: The single SRS resource is identified for a first repetition of the PUSCH transmission and a second repetition of the PUSCH transmission based at least in part on the SRI code point.

18. The method according to claim 17, wherein: Identifying the first TPMI index includes: identifying a row in a first table of TPMI indexes that specifies the first TPMI index based at least in part on a value indicated by a code point in the one or more code points, or identifying a row in a first table indicating TPMI indexes that specifies the plurality of TPMI indexes based at least in part on the value indicated by the single code point, The first TPMI index is ranked first among the plurality of TPMI indexes that specify the row of the plurality of TPMI indexes.

19. The method according to claim 6, further comprising: identifying, based at least in part on the SRI code point, a single SRS resource for a first repetition of the PUSCH transmission and for a second repetition of the PUSCH transmission among the one or more SRS resources; as well as Spatial relationship information associated with the single SRS resource is identified as a spatial domain transmit filter to be used for a first repetition of the PUSCH transmission and a second repetition of the PUSCH transmission.

20. The method according to claim 19, wherein: The single SRS resource is identified in a radio resource control communication among a plurality of candidate SRS resources that are allowed to be associated with a plurality of TPMIs.

21. The method according to claim 19, wherein: The single SRS resource is associated with the first TPMI index and the second TPMI index; and Wherein, identifying the first TPMI index and the second TPMI index includes: Based at least in part on the values ​​indicated by the one or more code points, a row in a table indicating TPMI indexes that specifies the first TPMI index and the second TPMI index is identified.

22. The method according to claim 6, wherein: The SRI code point is configured by radio resource control signaling to indicate one SRS resource or multiple SRS resources based at least in part on UE capabilities of the UE.

23. The method according to claim 6, wherein: The downlink communication is downlink control information DCI communication; wherein the one or more code points are indicated in the precoding information and layer number field in the DCI communication; and The SRI code point is indicated in the SRI field in the DCI communication.

24. A user equipment UE for wireless communication, comprising: Memory; as well as one or more processors operably coupled to the memory, the memory and the one or more processors being configured to: receiving a downlink communication comprising one or more code points indicating a plurality of transmit precoder matrix indicators (TPMI) indexes, wherein the one or more code points comprise a single code point indicating the plurality of TPMI indexes in a precoding information and number of layers field of the downlink communication; and identifying a first TPMI index for a first repetition of a physical uplink shared channel (PUSCH) transmission from the plurality of TPMI indexes based at least in part on the one or more code points, and identifying a second TPMI index for a second repetition of the PUSCH transmission from the plurality of TPMI indexes, The PUSCH transmission is codebook-based PUSCH transmission.

25. A non-transitory computer readable medium storing one or more instructions for wireless communication, the one or more instructions, when executed by one or more processors, causing the one or more processors to: receiving a downlink communication comprising one or more code points indicating a plurality of transmit precoder matrix indicators (TPMI) indexes, wherein the one or more code points comprise a single code point indicating the plurality of TPMI indexes in a precoding information and number of layers field of the downlink communication; and identifying a first TPMI index for a first repetition of a physical uplink shared channel (PUSCH) transmission from the plurality of TPMI indexes based at least in part on the one or more code points, and identifying a second TPMI index for a second repetition of the PUSCH transmission from the plurality of TPMI indexes, in, The PUSCH transmission is codebook-based PUSCH transmission.

26. An apparatus for wireless communication, comprising: means for receiving a downlink communication comprising one or more code points indicating a plurality of transmit precoder matrix indicators (TPMI) indexes, wherein the one or more code points comprises a single code point indicating the plurality of TPMI indexes in a precoding information and number of layers field of the downlink communication; and means for identifying a first TPMI index for a first repetition of a physical uplink shared channel (PUSCH) transmission from the plurality of TPMI indexes and a second TPMI index for a second repetition of the PUSCH transmission from the plurality of TPMI indexes based at least in part on the one or more code points, The PUSCH transmission is codebook-based PUSCH transmission.

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