Construction and mapping of compact UCI on physical uplink shared channel (PUSCH)

Abstract

Aspects of the present disclosure generally relate to wireless communications. In some aspects, a user equipment (UE) may determine to transmit compact uplink control information (UCI) identifying one or more parameters associated with a transmission of a physical uplink shared channel (PUSCH) communication in a physical uplink shared channel (PUSCH) resource unit (PRU). The UE may transmit the UCI in the PRU based at least in part on a semi-static payload configuration and a resource mapping rule. Numerous other aspects of the content are provided.

Description

[0001] This invention is a divisional application of the following patent application: Application number: 202080053190.7, Application date: July 30, 2020, Invention name: Construction and mapping of compact UCI on physical uplink shared channel (PUSCH).

[0002] CROSS-REFERENCE TO RELATED APPLICATIONS

[0003] This patent application claims priority to U.S. Provisional Patent Application No. 62 / 880,712, filed on July 31, 2019, entitled “CONSTRUCTION AND MAPPING OF COMPACT UPLINK CONTROL INFORMATION (UCI) OVER PHYSICAL UPLINK SHARED CHANNEL (PUSCH)” and U.S. Non-Provisional Patent Application No. 16 / 947,361, filed on July 29, 2020, entitled “CONSTRUCTION AND MAPPING OF COMPACT UPLINK CONTROL INFORMATION (UCI) OVER PHYSICAL UPLINK SHARED CHANNEL (PUSCH)”, both of which are expressly incorporated herein by reference. Technical Field

[0004] Aspects of the present disclosure relate generally to wireless communications and techniques and apparatus for constructing, mapping, and sending compact uplink control information (UCI) in a semi-static manner on a physical uplink shared channel (PUSCH). Background Art

[0005] Wireless communication systems are widely deployed to provide various telecommunication services, such as telephone, video, data, messaging, and broadcasting. Typical wireless communication systems may employ multiple access technologies that can support 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) systems. 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).

[0006] A wireless communication network may include multiple base stations (BS) that can support communication of multiple user equipments (UEs). User equipments (UEs) may communicate with base stations (BSs) via downlinks and uplinks. A downlink (or forward link) refers to a communication link from a BS to a UE, and 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.

[0007] The above-mentioned multiple access technologies have been adopted in various telecommunication standards to provide a common protocol that enables different user devices to communicate at the city, country, region and even global level. New Radio (NR), also known 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 better integrating with other open standards in the following ways: using orthogonal frequency division multiplexing (OFDM) with cyclic prefix (CP) (CP-OFDM) 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 carrier aggregation. However, as the demand for mobile broadband access continues to increase, further improvements in LTE and NR technologies are needed. Preferably, these improvements should be applicable to other multiple access technologies and telecommunication standards that adopt these technologies. Summary of the invention

[0008] In some aspects, a wireless communication method performed by a user equipment (UE) may include determining to send uplink control information (UCI), wherein the uplink control information identifies one or more parameters associated with the transmission of a physical uplink shared channel (PUSCH) communication in a PUSCH resource unit (PRU); and sending the UCI in the PRU based at least in part on the determination to send the UCI.

[0009] In some aspects, a UE for wireless communication may include a memory and one or more processors coupled to the memory. The memory and the one or more processors may be configured to determine to send UCI identifying one or more parameters associated with transmission of a PUSCH communication in a PRU based at least in part on determining to send UCI, and to send the UCI in the PRU.

[0010] In some 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: determine to send UCI identifying one or more parameters associated with transmission of a PUSCH communication in a PRU, and send UCI in the PRU based at least in part on the determination to send the UCI.

[0011] In some aspects, an apparatus for wireless communication may include means for determining to send UCI that identifies one or more parameters associated with transmission of a PUSCH communication in a PRU, and means for sending the UCI in the PRU based at least in part on the determination to send the UCI.

[0012] The various aspects generally include methods, apparatus, systems, computer program products, non-transitory computer-readable media, user equipment, base stations, wireless communication devices, and / or processing systems as fully described herein with reference to and illustrated by the accompanying drawings and description.

[0013] The foregoing has outlined the features and technical advantages of examples according to the present disclosure quite extensively so that the following detailed description may be better understood. Additional features and advantages will be described below. The disclosed concepts and specific examples may be easily used as a basis for modifying or designing other structures for achieving the same purpose of the present disclosure. Such equivalent structures do not depart from the scope of the appended claims. The characteristics of the concepts disclosed herein, both their organization and methods of operation, and the associated advantages will be better understood from the following description when considered in conjunction with the accompanying drawings. Each drawing is provided for the purpose of illustration and description and not as a definition of limitations to the claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to be able to understand the above features of the present disclosure in detail, a more specific description briefly summarized above can be obtained by reference to multiple aspects, some of which are shown in the accompanying drawings. However, it should be noted that these drawings only show certain typical aspects of the present disclosure and should not be considered as limiting its scope, as this specification may admit other equally effective aspects. The same reference numerals in different drawings may identify the same or similar elements.

[0015] Figure 1 is a block diagram conceptually illustrating an example of a wireless communication network in accordance with various aspects of the present disclosure.

[0016] Figure 2 is a block diagram conceptually 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.

[0017] Figure 3Ais a block diagram conceptually illustrating an example of a frame structure in a wireless communication network according to various aspects of the present disclosure.

[0018] Figure 3B is a block diagram conceptually illustrating an example synchronization communication hierarchy in a wireless communication network in accordance with various aspects of the present disclosure.

[0019] Figure 4 is a block diagram conceptually illustrating an example slot format with a normal cyclic prefix in accordance with various aspects of the present disclosure.

[0020] Figure 5-Figure 8 is a diagram illustrating an example of transmitting uplink control information (UCI) through a physical uplink shared channel (PUSCH) according to various aspects of the present disclosure.

[0021] Fig. 9 is a diagram illustrating example processes performed, for example, by a UE according to various aspects of the present disclosure. DETAILED DESCRIPTION

[0022] The various aspects of the present disclosure will be 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 to make the present disclosure thorough and complete, and to fully convey the scope of the present disclosure 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 disclosed herein, whether implemented independently 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 may be used to implement a device or method. In addition, the scope of the present disclosure is intended to cover such a device or method, which uses other structures, functions, or other structures, functions other than or different from the various aspects of the present disclosure set forth herein. It should be understood that any aspect of the disclosure disclosed herein may be embodied by one or more elements of the claims.

[0023] 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 a 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.

[0024] It should be noted that although various aspects may be described herein using terminology typically associated with 3G and / or 4G wireless technologies, various aspects of the present disclosure may be applied to other generation-based communication systems, such as 5G and higher, including NR technologies.

[0025] Figure 1 is a diagram showing a wireless network 100 in which various aspects of the present disclosure may be practiced. The wireless 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, NR BS, Node B, gNB, 5G Node B (NB), access point, transmit receive point (TRP), etc. Each BS may provide communication coverage for 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.

[0026] A BS may provide communication coverage for a macro cell, a pico cell, a femto cell, and / or another type of cell. A macro cell may cover a relatively large geographic area (e.g., a radius of several kilometers) 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 1 In the example shown, BS 110a may be a macro BS of macro cell 102a, BS 110b may be a pico BS of pico cell 102b, and BS 110c may be a femto BS of 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.

[0027] In some aspects, the cells may not necessarily be stationary, and the geographic area of ​​the cells may move depending on the location of the mobile BS. In some aspects, the BSs may be interconnected to each other and / or to 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 using any suitable transport network, virtual networks, etc.).

[0028] 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 send 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.

[0029] 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 high transmit power level (e.g., 5 watts 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 watt to 2 watts).

[0030] 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 these BSs via a backhaul. The BSs may also communicate with each other, for example, directly or indirectly via a wireless or cable backhaul.

[0031] UE 120 (e.g., UE 120A, UE 120B, UE 120C) may be dispersed throughout the wireless network 100, and each UE may be stationary 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 wireless phone, a wireless local loop (WLL) station, a tablet computer, a camera, a gaming device, a netbook, a smartbook, an ultrabook, a medical device or equipment, a biometric sensor / device, a wearable device (smart watch, smart clothing, smart glasses, smart wristband, smart wristband jewelry (e.g., smart bracelet, 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.

[0032] Some UEs may be considered machine type communication (MTC) or evolved or enhanced machine type communication (eEMTC) 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 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 Internet of Things (IoT) devices, and / or may be implemented as NB-IoT (narrowband Internet of Things) devices. Some UEs may be considered customer premises equipment (CPE). UE 120 may be included in a housing that houses components of UE 120 (such as a processor component, a memory component, etc.).

[0033] Generally, any number of wireless networks can be deployed in a given geographic area. Each wireless network can support a specific RAT and can operate on one or more frequencies. RAT can also be referred to as radio technology, air interface, etc. Frequency can also be referred to as carrier, channel, etc. Each frequency can 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 can be deployed.

[0034] In some 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 a medium for communicating with each other) using one or more sidelink channels. For example, UE 120 may communicate using peer-to-peer (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 this case, UE 120 may perform scheduling operations, resource selection operations, and / or other operations described elsewhere herein as being performed by base station 110.

[0035] As mentioned above, providing Figure 1 As an example. Other examples may be related to reference Figure 1 Different than described.

[0036] 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.

[0037] 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 user equipment, process (e.g., encode and modulate) the 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 MOD 232t. Each modulator 232 may process a corresponding output symbol stream (e.g., for orthogonal frequency division multiplexing (OFDM) or the like) 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.

[0038] 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, downconvert, 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 indication (RSSI), reference signal received quality (RSRQ), channel quality indication (CQI), etc. In some aspects, one or more components of UE 120 may be included in a housing.

[0039] On the uplink, at the UE 120, a transmit processor 264 may receive and process data from a data source 262 and control information from a controller / processor 280 (e.g., for reports including RSRP, RSSI, RSRQ, CQI, etc.). The transmit processor 264 may also generate reference symbols for one or more reference signals. Symbols from the transmit processor 264 may be precoded by a TX MIMO processor 266, if applicable, 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 the decoded data to the data receiver 239 and the decoded control information to the controller / processor 240. The base station 110 may include a communication unit 244 and communicate with the network controller 130 through the communication unit 244. The network controller 130 may include a communication unit 294, a controller / processor 290, and a memory 292.

[0040] The controller / processor 240 of the base station 110, the controller / processor 280 of the UE 120, and / or Figure 2Any other components of the base station 110 may perform one or more techniques associated with sending uplink control information (UCI) on a physical uplink shared channel (PUSCH), as described in more detail elsewhere herein. 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 of the can perform or direct e.g. Fig. 9 The operations of process 900 and / or other processes as 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 storing one or more instructions for wireless communication. For example, when executed by one or more processors of base station 110 and / or UE 120, the one or more instructions may perform or direct, for example, Fig. 9 The scheduler 246 may schedule UEs for data transmission on the downlink and / or uplink.

[0041] In some aspects, the UE 120 may include means for determining to send UCI, the UCI identifying one or more parameters associated with transmission of a PUSCH communication in a PUSCH resource unit (PRU); means for sending the UCI in the PRU based at least in part on determining to send the UCI, etc. In some aspects, such means may include in conjunction with Figure 2 One or more components of the UE 120 are depicted, such as a controller / processor 280, a transmit processor 264, a TX MIMO processor 266, a MOD 254, an antenna 252, a DEMOD 254, a MIMO detector 256, a receive processor 258, and the like.

[0042] As mentioned above, providing Figure 2 As an example. Other examples may be related to reference Figure 2 Different than described.

[0043] Figure 3A An example frame structure 300 for frequency division duplex (FDD) in a telecommunication system (e.g., NR) is shown. The transmission timeline for each of the downlink and uplink may be divided into radio frame units (sometimes referred to as frames). Each radio frame may have a predetermined duration (e.g., 10 milliseconds (ms)) and may be divided into a set of Z (Z ≥ 1) subframes (e.g., with indices from 0 to Z-1). Each subframe may have a predetermined duration (e.g., 1 ms) and may include a set of time slots (e.g., Figure 3A Each subframe 2 is shown in mtime slots, where m is a numerology for transmission, such as 0, 1, 2, 3, 4, etc.). Each time slot may include a set of L symbol periods. For example, each time slot may include fourteen symbol periods (e.g., Figure 3A In some aspects, the scheduling unit for FDD may be frame-based, subframe-based, slot-based, symbol-based, etc. ...

[0044] Although some techniques are described herein in conjunction with frames, subframes, time slots, etc., these techniques may also be applicable to other types of wireless communication structures, and terms other than "frames," "subframes," "time slots," etc. may be used to refer to these structures in 5G NR. In some aspects, a "wireless communication structure" may refer to a periodic, time-limited communication unit defined by a wireless communication standard and / or protocol. Additionally or alternatively, the same may be used. Figure 3A The configurations of different wireless communication structures are shown in .

[0045] In some telecommunications (e.g., NR), a base station may send synchronization signals. For example, a base station may send a primary synchronization signal (PSS), a secondary synchronization signal (SSS), etc. on the downlink for each cell supported by the base station. The UE may use the PSS and SSS for cell search and acquisition. For example, the UE may use the PSS to determine symbol timing, and the UE may use the SSS to determine the physical cell identifier and frame timing associated with the base station. The base station may also send a physical broadcast channel (PBCH). The PBCH may carry some system information, such as system information that supports initial access of the UE.

[0046] In some aspects, the base station may send the PSS, SSS, and / or PBCH according to a synchronization communication level (e.g., a synchronization signal (SS) level) including multiple synchronization communications (e.g., SS blocks), as described below in conjunction with Figure 3B Descriptive.

[0047] Figure 3B is a block diagram conceptually illustrating an example SS hierarchy as an example of a synchronous communication hierarchy. Figure 3B As shown, the SS level may include an SS burst set, which may include multiple SS bursts (identified as SS burst 0 to SS burst B-1, where B is the maximum number of repetitions of the SS burst that the base station can send). As further shown, each SS burst may include one or more SS blocks (identified as SS block 0 to SS block (b max_SS -1), where b max_SS-1 is the maximum number of SS blocks that a SS burst can carry). In some aspects, different SS blocks can be beamformed differently. Figure 3B As shown, the SS burst set may be sent by the wireless node periodically (such as every X milliseconds). In some aspects, the SS burst set may have a fixed or dynamic length. Figure 3B Displayed as Y milliseconds.

[0048] Figure 3B The SS burst sets shown in are examples of synchronous communication sets, and other synchronous communication sets may be used in conjunction with the techniques described herein. Figure 3B The SS blocks shown in are examples of synchronous communications, and other synchronous communications may be used in conjunction with the techniques described herein.

[0049] In some aspects, an SS block includes resources that carry PSS, SSS, PBCH, and / or other synchronization signals (e.g., a third synchronization signal (TSS)) and / or synchronization channels. In some aspects, multiple SS blocks are included in an SS burst, and the PSS, SSS, and / or PBCH may be the same across each SS block of the SS burst. In some aspects, a single SS block may be included in an SS burst. In some aspects, the length of an SS block may be at least four symbol periods, where each symbol carries one or more of a PSS (e.g., occupying one symbol), a SSS (e.g., occupying one symbol), and / or a PBCH (e.g., occupying two symbols).

[0050] In some aspects, the symbols of the SS blocks are consecutive, such as Figure 3B As shown. In some aspects, the symbols of the SS blocks are discontinuous. Similarly, in some aspects, one or more SS blocks of an SS burst may be sent in continuous radio resources (e.g., continuous symbol periods) during one or more time slots. Additionally or alternatively, one or more SS blocks of an SS burst may be sent in non-continuous radio resources.

[0051] In some aspects, an SS burst may have a burst period, whereby an SS block of the SS burst is sent by the base station according to the burst period. In other words, the SS block may be repeated during each SS burst. In some aspects, an SS burst set may have a burst set periodicity, whereby an SS burst of the SS burst set is sent by the base station according to the fixed burst set period. In other words, the SS bursts may be repeated during each SS burst set.

[0052] The base station may send system information, such as system information blocks (SIBs), on a physical downlink shared channel (PDSCH) in certain time slots. The base station may send control information / data on a physical downlink control channel (PDCCH) in C symbol periods of a time slot, where B may be configured for each time slot. The base station may send traffic data and / or other data on the PDSCH in the remaining symbol periods of each time slot.

[0053] As mentioned above, providing Figure 3A and Figure 3B As an example. Other examples may be related to reference Figure 3A and Figure 3B Different than described.

[0054] Figure 4 An example slot format 410 with a normal cyclic prefix is ​​shown. The available time-frequency resources may be divided into resource blocks. Each resource block may cover a set of subcarriers (e.g., 12 subcarriers) in a slot, and each resource block may include multiple resource elements. Each resource element may cover a subcarrier in a symbol period (e.g., in time) and may be used to send a modulation symbol, which may be real or complex valued.

[0055] In some telecommunication systems (e.g., NR), each of the FDD downlink and uplink may use an interlaced structure. For example, Q interlaces indexed from 0 to Q–1 may be defined, where Q may be equal to 4, 6, 8, 10, or some other value. Each interlace may include time slots spaced apart by Q frames. In particular, interlace q may include time slots q, q+Q, q+2Q, etc., where q∈{0,...,Q–1}.

[0056] A UE may be located within the coverage of multiple BSs. One of these BSs may be selected to serve the UE. The serving BS may be selected based at least in part on various criteria, such as received signal strength, received signal quality, path loss, etc. The received signal quality may be quantified by a signal-to-noise-and-interference ratio (SNIR) or a reference signal received quality (RSRQ) or some other metric. The UE may operate in a dominant interference scenario, where the UE may observe high interference from one or more interfering BSs.

[0057] Although aspects of the examples described herein may be associated with NR or 5G technology, aspects of the present disclosure may be applicable to other wireless communication systems. New Radio (NR) may refer to a radio configured to operate according to a new air interface (e.g., different from an air interface based on Orthogonal Frequency Division Multiple Access (OFDMA)) or a fixed transport layer (e.g., different from the Internet Protocol (IP)). In some aspects, NR may use OFDM with CP (referred to herein as cyclic prefix OFDM or CP-OFDM) and / or SC-FDM on the uplink, may use CP-OFDM on the downlink and include support for half-duplex operation using time division duplex (TDD). In some aspects, for example, NR may utilize OFDM with CP (referred to herein as CP-OFDM) and / or discrete Fourier transform spread orthogonal frequency division multiplexing (DFT-s-OFDM) on the uplink, may utilize CP-OFDM on the downlink, and include support for half-duplex operation using TDD. NR may include enhanced mobile broadband (eMBB) services for wide bandwidths (e.g., 80 megahertz (MHz) and above), millimeter wave (mmW) for high carrier frequencies (e.g., 60 gigahertz (GHz)), massive MTC (mMTC) for non-backward compatible MTC technologies, and / or mission critical ultra-reliable low latency communication (URLLC) services.

[0058] In some aspects, a single component carrier bandwidth of 100 MHz may be supported. NR resource blocks may span 12 subcarriers with a subcarrier bandwidth of 60 or 120 kilohertz (kHz) and a duration of 0.1 milliseconds (ms). Each radio frame may include 40 time slots and may have a length of 10 ms. Thus, each time slot may have a length of 0.25 ms. Each time slot may indicate a link direction (e.g., DL or UL) for data transmission, and the link direction of each time slot may be switched dynamically. Each time slot may include DL / UL data and DL / UL control data.

[0059] Beamforming can be supported and the beam direction can be dynamically configured. MIMO transmission with precoding can also be supported. MIMO configuration in DL can support up to 8 transmit antennas, with multi-layer DL transmission of up to 8 streams and up to 2 streams per UE. Multi-layer transmission of up to 2 streams per UE can be supported. Aggregation of multiple cells of up to 8 serving cells can be supported. Alternatively, NR can support different air interfaces instead of OFDM-based interfaces. NR networks can include entities such as central units or distributed units.

[0060] As mentioned above, providing Figure 4 As an example. Other examples may be related to reference Figure 4 Different than described.

[0061] The UE may communicate with the BS on the wireless communication link by receiving one or more downlink communications from the BS on the downlink of the wireless communication link, sending one or more uplink communications to the BS on the uplink of the wireless communication link, etc. To send the uplink communication, the UE may process the payload data (e.g., channel coded payload data, rate matched payload data, scrambled payload data, modulated payload data, etc.) of the uplink communication based at least in part on one or more transmission parameters. These transmission parameters may include a modulation and coding scheme for modulating the payload data, a redundancy version for rate matched payload data, a transport block size for the payload data, etc.

[0062] In some cases, the BS may specify transmission parameters to the UE so that the BS knows these transmission parameters. The BS may demodulate, decode and / or otherwise process uplink communications based at least in part on the transmission parameters. In some cases, the BS may not know the transmission parameters used by the UE to generate and / or send uplink communications. For example, the BS may provide a plurality of candidate transmission parameters to the UE, and the UE selects the transmission parameters for uplink communications from these parameters. As another example, a table, an algorithm, etc. may be provided to the UE, and the UE may use these tables, algorithms, etc. to determine the transmission parameters. As a result, the BS may attempt to process uplink communications by iterating candidate transmission parameters in order to attempt to demodulate and / or decode the uplink communications, which increases the processing time of the uplink communications, increases the consumption of the memory and / or processing resources of the BS, etc. In addition, if the BS cannot determine the transmission parameters, the BS may not be able to demodulate, decode and / or otherwise process uplink communications, which may result in an increase in uplink communications lost at the BS, an increase in the amount of uplink retransmissions, etc.

[0063] Some aspects described herein provide techniques and apparatus associated with sending UCI on PUSCH. In some aspects, a UE may determine one or more transmission parameters for processing and / or sending uplink communications to a BS. The UE may send an indication of one or more transmission parameters associated with uplink communications in UCI to the BS. As an example, uplink communications may include PUSCH communications sent in a PRU. The PRU may include a set of time domain and / or frequency domain resources that are configured to carry PUSCH communications and associated demodulation reference signals (DMRS). In this case, the UE may determine one or more transmission parameters (e.g., modulation and coding scheme, transport block size, redundancy version, etc.) for processing and / or sending PUSCH communications, may generate UCI identifying one or more transmission parameters, and may multiplex UCI, PUSCH communications, and associated DMRS in the PRU.

[0064] In this manner, the BS may receive UCI, PUSCH communications, and DMRS, may identify one or more transmission parameters based at least in part on the UCI, and may demodulate, decode, and / or otherwise process the PUSCH communications based at least in part on the one or more transmission parameters, the DMRS, etc. This increases efficiency in processing uplink communications at the base station (e.g., by reducing demodulation and / or decoding attempts based at least in part on candidate transmission parameters), reduces dropped and / or delayed uplink communications, reduces retransmissions, etc.

[0065] Figure 5 is a diagram illustrating one or more examples 500 of transmitting UCI on a PUSCH according to various aspects of the present disclosure. Figure 5 As shown, example 500 may include communication between a UE (e.g., UE 120) and a BS (e.g., BS 110). In some aspects, the BS and the UE may be included in a wireless network, such as wireless network 100 and / or another wireless network. The BS and the UE may communicate via a wireless access link, which may be configured with a frame structure (e.g., frame structure 300 and / or another frame structure), a time slot format (e.g., time slot format 410 and / or another time slot format), etc. The access link may include an uplink and a downlink.

[0066] In some cases, the UE may send uplink communications, such as PUSCH communications, physical uplink control channel (PUCCH) communications, etc., to the BS on the uplink. For example, the UE may perform a random access channel (RACH) procedure to establish a communication connection with the BS, and may send PUSCH communications to the BS as part of the RACH procedure. The RACH procedure may include a contention-based RACH procedure, a contention-free RACH procedure, a two-step RACH procedure, etc. The UE may send a RACH preamble in msg1 communication and a radio resource control (RRC) connection request in msg3 communication (e.g., which may be PUSCH communication) for a four-step RACH procedure, may include msgA communications (e.g., which may be PUSCH communications) in a two-step RACH procedure including a RACH preamble portion and a payload portion, etc.

[0067] As another example, the BS may configure the UE with a configured grant that may schedule periodic and / or semi-persistent resources (e.g., time domain resources, frequency domain resources, etc.) to send uplink communications to the BS, and the UE may use these resources to send PUSCH communications to the BS.

[0068] The UE may send PUSCH communications in a PRU. As described above, the PRU may include a set of time domain and / or frequency domain resources configured to carry PUSCH communications, DMRS, and / or other uplink communications. In some aspects, the PRU may be associated with a specific RACH opportunity in which the UE sends a RACH preamble in a RACH process (such as for a contention-based RACH process). In some aspects, the UE may identify the UE based at least in part on an indication of the PRU in a downlink control information (DCI) communication (e.g., compact DCI communication, group common DCI communication, etc.) configured with contention-free RACH process resources received from the BS. In some aspects, the PRU may be configured by a configured authorization, in which case the UE may identify the PRU based at least in part on an indication of the PRU in an RRC communication received from the BS, a medium access control (MAC) control element (MAC-CE) communication received from the BS, and the like.

[0069] In some aspects, a PRU may be included in a PRU group with one or more other PRUs. In this case, the UE and / or other UEs may select a corresponding PRU from the PRU group and may send PUSCH communications, DMRS, and / or other uplink communications in the corresponding PRU.

[0070] like Figure 5 As shown, and by reference numeral 502, the UE may determine to transmit UCI associated with a PUSCH communication to be sent to a BS (which may be referred to as UCI on PUSCH, UCI piggybacking, etc.). The UE may configure the UCI to identify one or more transmission parameters associated with the transmission of the PUSCH communication. The one or more transmission parameters may include, for example, a modulation and coding scheme associated with the PUSCH communication, a redundancy version associated with the PUSCH communication, a transport block size associated with the PUSCH communication, and / or other parameters associated with coding, modulation, and / or otherwise processing the PUSCH communication for transmission to the BS.

[0071] In some aspects, one or more transmission parameters may be identified in the UCI by a modulation and coding scheme index and / or another type of modulation and coding scheme identifier, a redundancy version index and / or another type of redundancy version identifier, a transport block size index and / or another type of transport block size identifier, and the like.

[0072] In some aspects, the UE may determine to send UCI to the BS to identify one or more transmission parameters so that the BS can demodulate, decode and / or otherwise process PUSCH communications. In some aspects, the UE may determine to send UCI to identify the one or more transmission parameters based at least in part on determining that the BS may not know the one or more transmission parameters, may not be able to determine the one or more transmission parameters, may not be able to determine the one or more transmission parameters without a large number of iterations through candidate transmission parameters, etc.

[0073] For example, the UE may determine to send UCI to identify one or more transmission parameters based at least in part on determining that the PRUs in the PRU group including the PRUs are at least partially overlapped, completely overlapped, mapped and / or configured to the same and / or shared time domain and / or frequency domain resource set, etc. As another example, the UE may determine to send UCI to identify one or more transmission parameters based at least in part on determining that the PRUs in the PRU group including the PRUs are nested such that the PRUs start at the same time domain resources and / or the same frequency domain resources.

[0074] As another example, if the PUSCH communication includes a payload portion of a msgA communication in a RACH procedure, the UE may determine to send UCI to identify one or more transmission parameters based at least in part on determining that a combination of a PRU and an associated RACH opportunity for sending a RACH preamble portion of the msgA communication is associated with a plurality of different candidate transmission parameters and / or a combination of a plurality of different candidate transmission parameters. As another example, if the PUSCH communication includes a payload portion of a msgA communication in a contention-based RACH procedure, the UE may determine to send UCI to identify one or more transmission parameters based at least in part on determining that the contention-based RACH procedure is triggered by a contention-based random access event (e.g., based at least in part on determining to perform a contention-based RACH procedure, based at least in part on detecting a conflict in a contention-based RACH procedure, etc.).

[0075] As another example, if PUSCH communication (and / or the PRU in which the UE will send PUSCH communication) is scheduled by a configured grant, the UE may determine to send UCI to identify one or more transmission parameters based at least in part on determining that signaling communications (e.g., RRC communication, MAC-CE communication, etc.) indicating the configured grant allow the UE to select one or more transmission parameters from multiple different combinations of candidate transmission parameters.

[0076] like Figure 5As further shown in FIG. 1 and by reference numeral 504, the UE may send UCI in the PRU based at least in part on determining to send UCI. In addition, the UE may send PUSCH communications and associated DMRS along with the UCI in the PRU. For example, the UE may time-division multiplex and / or frequency-division multiplex the UCI, PUSCH communications, and / or associated DMRS in the PRU.

[0077] In this manner, the BS may receive UCI, PUSCH communications, and DMRS, may identify one or more transmission parameters based at least in part on the UCI, and may demodulate, decode, and / or otherwise process the PUSCH communications based at least in part on the one or more transmission parameters, the DMRS, etc. This increases efficiency in processing uplink communications at the base station (e.g., by reducing demodulation and / or decoding attempts based at least in part on candidate transmission parameters), reduces dropped and / or delayed uplink communications, reduces retransmissions, etc.

[0078] As mentioned above, providing Figure 5 As one or more examples. Other examples may be related to reference Figure 5 Different than described.

[0079] Figure 6 is a diagram illustrating one or more examples 600 of transmitting UCI on a PUSCH in accordance with various aspects of the present disclosure.

[0080] like Figure 6 As shown, and by reference numeral 602, the UE may channel code and / or rate match PUSCH bits and cyclic redundancy check (CRC) bits appended to the PUSCH bits. The PUSCH bits may be one or more data bits to be included in a PUSCH communication to be sent by the UE to the BS. In some aspects, the UE may select a transport block size and / or a redundancy version for channel coding and / or rate matching the PUSCH bits and the CRC bits.

[0081] In some aspects, the UE may channel encode the PUSCH bits and the CRC bits using one or more channel codes. For example, the UE may channel encode the PUSCH bits and the CRC bits based at least in part on a repetition code, a simplex code, a Reed-Muller code, and / or other types of codes.

[0082] like Figure 6As further shown, and by reference numeral 604, the UE may scramble the PUSCH bits and the CRC bits. For example, the UE may scramble the channel coded and / or rate matched PUSCH bits and the CRC bits based at least in part on an identifier associated with the UE, such as a radio network temporary identifier (RNTI) (e.g., a group common RNTI (GC-RNTI), a random access RNTI (RA-RNTI), a cell RNTI (C-RNTI), etc.). In some aspects, the UE may scramble the PUSCH bits and the CRC bits based at least in part on a scrambling identifier, which may be determined at least in part based on an equation having a form similar to Equation 1:

[0083] scrambling_ID_UCI=(K1*preamble_resource_index)+(K2*DMRS_resource_index)+(K3*PRU_resource_index)

[0084] Equation 1

[0085] Where scrambling_ID_UCI is a scrambling identifier, preamble_resource_index is an index associated with a RACH opportunity at which the UE will send a RACH preamble, DMRS_resource_index is an index associated with a time-frequency resource at which the UE will send a DMRS associated with a PUSCH communication, PRU_resource_index is an index associated with a PRU at which the UE will send a PUSCH communication, and K1, K2, and K3 are proportional constants. The UE may initialize a scrambling sequence based at least in part on the scrambling identifier.

[0086] like Figure 6 As further shown in FIG. 1 and by reference numeral 606, the UE may linearly modulate the PUSCH bits and the CRC bits to generate one or more OFDM symbols carrying the PUSCH bits and the CRC bits. In some aspects, the UE may select a modulation and coding scheme for modulating the PUSCH bits and the CRC bits. The modulation and coding scheme may include, for example, binary phase shift keying (BPSK), quadrature phase shift keying (QPSK), quadrature amplitude modulation (QAM), and / or other types of modulation and coding schemes.

[0087] like Figure 6As further shown in FIG. 1 and by reference numeral 608, the UE may generate UCI bits to be included in the UCI, which indicate transmission parameters for the above-mentioned channel coding, rate matching, bit scrambling, linear modulation, etc. The UCI bits may indicate, for example, a modulation and coding scheme index associated with a modulation and coding scheme used to modulate the PUSCH bits and the CRC bits, a redundancy version index associated with a redundancy version selected for rate matching the PUSCH bits and the CRC bits, a transport block size index associated with a transport block size used for channel coding the PUSCH bits and the CRC bits, etc.

[0088] In some aspects, the UE may also channel code, rate match, bit scramble, and / or linearly modulate the UCI bits in a manner similar to the PUSCH bits and CRC bits described above in conjunction with reference numerals 602-606. In addition, the UE may append or attach the CRC bits to the UCI bits. In this case, the UE may channel code the UCI bits and associated CRC bits based at least in part on the same channel code or different channel codes, based at least in part on the same scrambling identifier or different scrambling identifiers, based at least in part on the same modulation order or different modulation orders, and the like.

[0089] In some aspects, to ensure that the UCI is compact enough to reduce the overhead of the UCI, the UE may determine whether the number of UCI bits required to indicate one or more transmission parameters in the UCI satisfies a bit number threshold. If the UE determines that the number of bits satisfies the bit number threshold, the UE may generate a scrambling identifier for the UCI bits based at least in part on Equation 1 above. In some aspects, if the UE determines that the number of bits does not satisfy the bit number threshold, the UE may truncate or reduce the number of UCI bits to reduce the overhead of the UCI. For example, the UE may truncate the UCI bits based at least in part on an equation having a form similar to Equation 2:

[0090]

[0091] Where W is the number of possible combinations of one or more transmission parameters and N is a bit number threshold. In some aspects, the UE may determine whether W>2 based at least in part on N In some aspects, if the UE determines to truncate or reduce the number of bits included in the UCI bits, the UE may scramble the UCI bits by initializing a scrambling sequence (e.g., a pseudo-random sequence) based at least in part on a sequence identifier, the sequence identifier being determined at least in part based on an equation having a form similar to Equation 3:

[0092] scrambling_ID_UCI=(K1*preamble_resource_index)+(K2*DMRS_resource_index)+(K3*PRU_resource_index)+K3

[0093] Equation 3

[0094] Where K3 represents the binary to decimal conversion of the truncated or reduced number of bits contained in the UCI bits.

[0095] Additionally and / or alternatively, the UE may apply a CRC mask to mask the CRC bits appended to the UCI bits, wherein the CRC mask may be generated based at least in part on a pseudo-random sequence, which in turn may be based at least in part on a number of truncated or reduced bits included in the UCI bits. In some aspects, the pseudo-random sequence used to generate the CRC mask and the pseudo-random sequence used to scramble the UCI bits may be the same pseudo-random sequence or different pseudo-random sequences.

[0096] like Figure 6 As further shown in the , and by reference numeral 610, the UE may generate a DMRS to be sent in the PRU with the PUSCH communication and the UCI. In some aspects, the DMRS may be generated and sent such that the BS may perform one or more measurements of the DMRS to determine an uplink channel on which to send the PUSCH communication. In some aspects, if the PUSCH communication is a payload portion of a msgA communication in a two-step RACH procedure, the UE may generate the DMRS based at least in part on a preamble sequence identifier associated with a RACH preamble portion of the msgA communication.

[0097] like Figure 6 As further shown in FIG. 1 and by reference numeral 612, the UE may multiplex PUSCH communications, UCI, and / or DMRS in the PRU. For example, the UE may time-division multiplex and / or frequency-division multiplex OFDM symbols representing PUSCH communications, UCI, and / or DMRS in the PRU. Figure 6 As further shown in FIG. 1 and by reference numeral 614, the UE may map OFDM symbols representing PUSCH communication, UCI, and DMRS to OFDM symbols included in the PRU. The UE may send the OFDM symbols in the PRU to the BS to send the PUSCH communication, UCI, and / or DMRS to the BS.

[0098] As mentioned above, providing Figure 6 As one or more examples. Other examples may be related to reference Figure 6 Different than described.

[0099] Figure 7 is a diagram illustrating one or more examples 700 of transmitting UCI on a PUSCH according to various aspects of the present disclosure. Figure 7 As shown, an example PRU associated with a UE may include multiplexing (e.g., time division multiplexing and / or frequency division multiplexing) DMRS, PUSCH communication, and UCI. The UCI may be configured to indicate one or more transmission parameters associated with the PUSCH communication, as described above in conjunction with Figure 5 and Figure 6 In some aspects, modulation symbols for PUSCH communications may be punctured or rate matched around one or more subcarriers and / or OFDM symbols of UCI in a PRU.

[0100] like Figure 7 As shown, a PRU may include a set of time domain resources (eg, T PRU ) and / or a set of frequency domain resources (e.g., F PRU The UCI may occupy a subset of the time domain resources and / or a set of frequency domain resources included in the PRU (e.g., T UCI and F UCI ).like Figure 7 As further shown, the modulation symbols of the UCI may be sent in one or more OFDM symbols adjacent to the OFDM symbols in which the DMRS is sent in the PRU. In some aspects, the starting OFDM symbol and / or starting subcarrier of the UCI may be the same between PRUs in a PRU group including the PRU (e.g., may start at the semi-persistent OFDM symbol index and / or subcarrier index of the PRU). In some aspects, the number of OFDM symbols and subcarriers across which the UCI is sent may be the same between PRUs in a PRU group including the PRU.

[0101] As mentioned above, providing Figure 7 As one or more examples. Other examples may be related to reference Figure 7 Different than described.

[0102] Figure 8 8 is a diagram illustrating one or more examples 800 of transmitting UCI on a PUSCH according to various aspects of the present disclosure. Figure 8As shown, the example PRU group may include multiple PRUs nested in the PRU group, such that each PRU starts at the same starting time-frequency resources (e.g., the same time domain resources and the same frequency resources), regardless of whether the PRUs are of the same size or different sizes in the time domain and / or frequency domain. Each PRU may be associated with a corresponding UE (e.g., UE 1, UE 2, UE 3, etc.). In addition, the PRUs in the PRU group may be configured such that each UCI sent in each PRU occupies the same number of OFDM symbols and / or subcarriers, such that each UCI sent in each PRU occupies the same OFDM symbols and / or subcarriers in the entire PRU, etc.

[0103] like Figure 8 As further shown, the modulation symbols of the UCI in each PRU in the PRU group may be sent in one or more OFDM symbols adjacent to the OFDM symbol in which the DMRS is sent in the PRU. In some aspects, the starting OFDM symbol and / or starting subcarrier of each UCI may be the same on the PRUs in the PRU group (e.g., may start at the semi-permanent OFDM symbol index and / or subcarrier index of the PRU). In some aspects, the number of OFDM symbols and subcarriers spanned by the transmission of the UCI may be the same between the PRUs in the PRU group. In this way, the BS may semi-statically configure the PRUs in the PRU group, the UCI in the PRU, etc. (e.g., based at least in part on the semi-static payload construction and resource mapping rules) to reduce the detection / decoding complexity of the base station.

[0104] As mentioned above, providing Figure 8 As one or more examples. Other examples may be related to reference Figure 8 Different than described.

[0105] Fig. 9 9 is a diagram illustrating an example process 900 performed, for example, by a UE in accordance with various aspects of the present disclosure. Example process 900 is an example of a UE (eg, UE 120) performing operations associated with sending UCI on a PUSCH.

[0106] like Fig. 9 As shown, in some aspects, process 900 may include determining to send UCI that identifies one or more parameters associated with transmission of PUSCH communications in the PRU (block 910). For example, as described above, the UE (e.g., using receive processor 258, transmit processor 264, controller / processor 280, memory 282, etc.) may determine to send UCI that identifies one or more parameters associated with transmission of PUSCH communications in the PRU.

[0107] like Fig. 9As further shown in FIG. 9 , in some aspects, process 900 may include sending UCI in the PRU based at least in part on determining to send UCI (block 920). For example, as described above, the UE (e.g., using receive processor 258, transmit processor 264, controller / processor 280, memory 282, etc.) may send UCI in the PRU based at least in part on determining to send UCI.

[0108] Process 900 may include additional aspects, such as any combination of any single aspect or aspects described below and / or in combination with one or more other processes described elsewhere herein.

[0109] In a first aspect, the one or more parameters include at least one of an MCS index associated with PUSCH communication, a redundancy version associated with PUSCH communication, or a transport block size associated with PUSCH communication. In a second aspect, alone or in combination with the first aspect, determining to send UCI includes determining to send UCI based at least in part on determining that a plurality of PRUs included in a PRU group included in the PRU are mapped to a shared set of time domain resources and frequency domain resources. In a third aspect, alone or in combination with one or more of the first and second aspects, the plurality of PRUs have the same time domain resource size and the same frequency domain resource size.

[0110] In a fourth aspect, alone or in combination with one or more of the first to third aspects, at least one subset of the plurality of PRUs is at least one of a different time domain resource size or a different frequency domain resource size. In a fifth aspect, alone or in combination with one or more of the first to fourth aspects, determining to send UCI includes determining to send UCI based at least in part on determining that a plurality of PRUs included in a PRU group in which the PRU is located are nested in the time domain and the frequency domain, so that the plurality of PRUs share the same starting time domain resource and the same starting frequency domain resource.

[0111] In a sixth aspect, alone or in combination with one or more of the first to fifth aspects, the PUSCH communication includes a payload of a msgA communication in a contention-free two-step RACH process, and process 900 also includes receiving an indication of a PRU in a DCI communication, the DCI communication being at least one of a compact DCI communication or a group common DCI communication. In a seventh aspect, alone or in combination with one or more of the first to sixth aspects, the PUSCH communication includes a payload of a msgA communication in a two-step RACH process, and determining to send UCI includes determining to send UCI based at least in part on determining that a combination of a PRU and a preamble of the msgA communication is associated with a plurality of different combinations of one or more parameters.

[0112] In an eighth aspect, alone or in combination with one or more of the first to seventh aspects, transmission of PUSCH communication is scheduled by a configured grant, and determining to send UCI includes determining to send UCI based at least in part on determining that a signaling communication indicating the configured grant allows the UE to select one or more parameters from a plurality of different combinations of one or more parameters. In a ninth aspect, alone or in combination with one or more of the first to eighth aspects, transmission of PUSCH communication is triggered by a contention-based random access event, and determining to send UCI includes determining to send UCI based at least in part on the contention-based random access event.

[0113] In a tenth aspect, either alone or in combination with one or more of the first to ninth aspects, one or more parameters are indicated in the UCI by a plurality of bits, the plurality of bits being encoded by a channel code to form coded bits. In an eleventh aspect, either alone or in combination with one or more of the first to tenth aspects, the process 900 further comprises appending one or more CRC bits to the plurality of bits before channel encoding the UCI. In a twelfth aspect, either alone or in combination with one or more of the first to eleventh aspects, the process 900 further comprises determining that a number of bits in the plurality of bits does not satisfy a bit number threshold, and reducing the number of bits to a reduced number of bits based at least in part on determining that the number of bits does not satisfy the bit number threshold.

[0114] In a thirteenth aspect, alone or in combination with one or more of the first to twelfth aspects, process 900 also includes masking the CRC bits based at least in part on the first pseudo-random sequence, or scrambling at least one of the coded bits using a second pseudo-random sequence based at least in part on the reduced number of bits, and scrambling the UCI based at least in part on the reduced number of bits includes initializing a scrambling sequence generator based at least in part on the reduced number of bits, and scrambling the UCI based at least in part on the scrambling sequence.

[0115] In a fourteenth aspect, alone or in combination with one or more of the first to thirteenth aspects, transmitting UCI in a PRU includes transmitting one or more modulation symbols of UCI in one or more OFDM symbols adjacent to transmission of a demodulation reference signal in the PRU and in one or more subcarriers starting at a semi-persistent subcarrier index of the PRU. In a fifteenth aspect, alone or in combination with one or more of the first to fourteenth aspects, the number of the one or more subcarriers is the same number of subcarriers for each PRU included in a PRU group in which the PRU is included, and the modulation symbols of the PUSCH communication are punctured or rate matched in the PRU around the one or more subcarriers.

[0116] although Fig. 9An example block diagram of process 900 is shown, but in some aspects, process 900 may include Fig. 9 The blocks of process 900 may include additional blocks, fewer blocks, different blocks, or differently arranged blocks than those depicted in process 900. Additionally or alternatively, two or more blocks of process 900 may be executed in parallel.

[0117] The foregoing 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 these aspects.

[0118] As used herein, the term "component" is intended to be broadly interpreted as hardware, firmware, and / 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.

[0119] 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.

[0120] 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 is not limited in these respects. 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 based at least in part on this specification.

[0121] Although specific combinations of features are recited in the claims and / or disclosed in the specification, these combinations are not intended to limit the disclosure of the various aspects. In fact, many of these features can be combined in ways that are not specifically recited in the claims and / or disclosed in the specification. Although each dependent claim listed below may be directly dependent on one claim, the disclosure of the various aspects includes the combination of each dependent claim with each other claim in the claim set. A phrase referring to "at least one" in a list of items refers to any combination of those items, including single members. For example, "at least one of a, b, or c" is intended to cover a, b, c, ab, ac, bc, and abc, as well as any combination with multiples of the same elements (e.g., aa, aaa, aab, aac, abb, acc, bb, bbb, bbc, cc, and ccc or in any other order).

[0122] Unless explicitly stated, any element, action or instruction used herein should not be interpreted as critical or essential. In addition, as used herein, the article "a" is 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, the phrase "only one item" or similar language is used. In addition, as used herein, the term "having" and / or similar terms are intended to be open terms. In addition, unless otherwise explicitly stated, the phrase "based on" is intended to mean "based at least in part on".

Claims

1. A user equipment (UE) for wireless communication, comprising: Memory; and One or more processors, coupled to the memory, the one or more processors being configured to: receiving downlink control information (DCI) including an indication of a physical uplink shared channel (PUSCH) resource unit (PRU) for PUSCH communication; transmitting the PUSCH communication in the PRU, wherein the PUSCH communication includes a payload of a msgA communication in a contention-free two-step random access channel (RACH) procedure and uplink control information (UCI) multiplexed in the PUSCH communication, the UCI identifying one or more parameters associated with the PUSCH communication; as well as and determining that a combination of the PRU and the preamble of the msgA communication is associated with a plurality of different combinations of the one or more parameters, wherein the PUSCH communication includes the UCI based at least in part on the combination of the PRU and the preamble of the msgA communication being associated with the plurality of different combinations of the one or more parameters.

2. The UE according to claim 1, wherein: The one or more parameters include at least one of the following: a modulation and coding scheme index associated with said PUSCH communication, a redundancy version associated with the PUSCH communication, or The transport block size associated with the PUSCH communication.

3. The UE according to claim 1, wherein: The one or more processors are further configured to: Determine that a plurality of PRUs included in a PRU group including the PRUs are mapped to a shared set of time domain resources and frequency domain resources, wherein the PUSCH communication includes the UCI based at least in part on the plurality of PRUs being mapped to the shared set of time domain resources and frequency domain resources.

4. The UE according to claim 3, wherein: The multiple PRUs have the same time domain resource size and the same frequency domain resource size.

5. The UE according to claim 3, wherein: At least one subset of the plurality of PRUs has at least one of a different time domain resource size or a different frequency domain resource size.

6. The UE according to claim 1, wherein: The one or more processors are further configured to: Determine that multiple PRUs included in the PRU group including the PRU are nested in the time domain and the frequency domain so that the multiple PRUs share the same starting time domain resources and the same starting frequency domain resources, wherein at least partially based on the multiple PRUs being nested in the time domain and the frequency domain so that the multiple PRUs share the same starting time domain resources and the same starting frequency domain resources, the PUSCH communication includes the UCI.

7. The UE according to claim 1, wherein: The one or more parameters are indicated by a plurality of bits, and wherein the one or more processors are further configured to: appending one or more cyclic redundancy check (CRC) bits to the plurality of bits to form a bit group; and The groups of bits are channel encoded to form coded bits.

8. The UE according to claim 7, wherein: The one or more processors are further configured to: determining that a number of bits in the plurality of bits does not satisfy a bit number threshold; and Based at least in part on the number of bits not satisfying the number of bits threshold, the number of bits is reduced to a reduced number of bits.

9. The UE according to claim 8, wherein: The one or more processors are further configured to: The one or more CRC bits are masked based at least in part on a pseudo-random sequence based at least in part on the reduced number of bits.

10. The UE according to claim 8, wherein: The one or more processors are further configured to: The coded bits are scrambled using a pseudorandom sequence based at least in part on the reduced number of bits.

11. The UE according to claim 1, wherein: The one or more modulation symbols of the UCI are sent in one or more orthogonal frequency division multiplexing (OFDM) symbols adjacent to transmission of a demodulation reference signal in the PRU and in one or more subcarriers starting at a semi-persistent subcarrier index of the PRU.

12. The UE according to claim 11, wherein: Modulation symbols of the PUSCH communication are punctured or rate matched around the one or more subcarriers in the PRU.

13. The UE according to claim 11, wherein: The number of the one or more subcarriers is the same number of subcarriers for each PRU included in a PRU group in which the PRU is included.

14. A method of wireless communication performed by a user equipment (UE), comprising: receiving downlink control information (DCI) including an indication of a physical uplink shared channel (PUSCH) resource unit (PRU) for PUSCH communication; transmitting the PUSCH communication in the PRU, wherein the PUSCH communication includes a payload of a msgA communication in a contention-free two-step random access channel (RACH) procedure and uplink control information (UCI) multiplexed in the PUSCH communication, the UCI identifying one or more parameters associated with the PUSCH communication; as well as and determining that a combination of the PRU and the preamble of the msgA communication is associated with a plurality of different combinations of the one or more parameters, wherein the PUSCH communication includes the UCI based at least in part on the combination of the PRU and the preamble of the msgA communication being associated with the plurality of different combinations of the one or more parameters.

15. The method according to claim 14, wherein: The one or more parameters include at least one of the following: a modulation and coding scheme index associated with said PUSCH communication, a redundancy version associated with the PUSCH communication, or The transport block size associated with the PUSCH communication.

16. The method according to claim 14, further comprising: Determine that a plurality of PRUs included in a PRU group including the PRUs are mapped to a shared set of time domain resources and frequency domain resources, wherein the PUSCH communication includes the UCI based at least in part on the plurality of PRUs being mapped to the shared set of time domain resources and frequency domain resources.

17. The method according to claim 16, wherein: The multiple PRUs have the same time domain resource size and the same frequency domain resource size.

18. The method according to claim 16, wherein: At least one subset of the plurality of PRUs has at least one of a different time domain resource size or a different frequency domain resource size.

19. The method according to claim 14, further comprising: Determine that multiple PRUs included in the PRU group including the PRU are nested in the time domain and the frequency domain so that the multiple PRUs share the same starting time domain resources and the same starting frequency domain resources, wherein at least partially based on the multiple PRUs being nested in the time domain and the frequency domain so that the multiple PRUs share the same starting time domain resources and the same starting frequency domain resources, the PUSCH communication includes the UCI.

20. The method of claim 14, wherein the one or more parameters are indicated by a plurality of bits, wherein the method further comprises: appending one or more cyclic redundancy check (CRC) bits to the plurality of bits to form a bit group; as well as The groups of bits are channel encoded to form coded bits.

21. The method according to claim 20, further comprising: determining that a number of bits in the plurality of bits does not satisfy a bit number threshold; and Based at least in part on the number of bits not satisfying the number of bits threshold, the number of bits is reduced to a reduced number of bits.

22. The method according to claim 21, further comprising: The one or more CRC bits are masked based at least in part on a pseudo-random sequence based at least in part on the reduced number of bits.

23. The method according to claim 21, further comprising: The coded bits are scrambled using a pseudorandom sequence based at least in part on the reduced number of bits.

24. The method according to claim 14, wherein: The one or more modulation symbols of the UCI are sent in one or more orthogonal frequency division multiplexing (OFDM) symbols adjacent to transmission of a demodulation reference signal in the PRU and in one or more subcarriers starting at a semi-persistent subcarrier index of the PRU.

25. The method according to claim 24, wherein: Modulation symbols of the PUSCH communication are punctured or rate matched around the one or more subcarriers in the PRU.

26. The method according to claim 24, wherein: The number of the one or more subcarriers is the same number of subcarriers for each PRU included in a PRU group in which the PRU is included.

27. A non-transitory computer readable medium storing a set of instructions for wireless communication, the set of instructions comprising: One or more instructions, when executed by one or more processors of a user equipment (UE), cause the UE to: receiving downlink control information (DCI) including an indication of a physical uplink shared channel (PUSCH) resource unit (PRU) for PUSCH communication; transmitting the PUSCH communication in the PRU, wherein the PUSCH communication includes a payload of a msgA communication in a contention-free two-step random access channel (RACH) procedure and uplink control information (UCI) multiplexed in the PUSCH communication, the UCI identifying one or more parameters associated with the PUSCH communication; as well as and determining that a combination of the PRU and the preamble of the msgA communication is associated with a plurality of different combinations of the one or more parameters, wherein the PUSCH communication includes the UCI based at least in part on the combination of the PRU and the preamble of the msgA communication being associated with the plurality of different combinations of the one or more parameters.

28. An apparatus for wireless communication, comprising: a component for receiving downlink control information (DCI) including an indication of a physical uplink shared channel (PUSCH) resource unit (PRU) for PUSCH communication; a component for transmitting the PUSCH communication in the PRU, wherein the PUSCH communication comprises a payload of a msgA communication in a contention-free two-step random access channel (RACH) procedure and uplink control information (UCI) multiplexed in the PUSCH communication, the UCI identifying one or more parameters associated with the PUSCH communication; as well as and a component for determining that a combination of the PRU and the preamble of the msgA communication is associated with a plurality of different combinations of the one or more parameters, wherein the PUSCH communication includes the UCI based at least in part on the combination of the PRU and the preamble of the msgA communication being associated with the plurality of different combinations of the one or more parameters.

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