Three-state hybrid automatic repeat request feedback

Abstract

In general, various aspects of the present disclosure relate to wireless communications. In some aspects, a first wireless node may receive one or more communications from a second wireless node, wherein the one or more communications include at least one of the following: a control channel that schedules a data channel, or a control channel and the data channel; and send tri-state feedback indicating a result of decoding the communication, wherein the tri-state feedback indicates whether decoding of the control channel was unsuccessful, decoding of the control channel was successful and decoding of the data channel was unsuccessful, or decoding of the control channel and the data channel was successful.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This patent application claims the benefit of priority of U.S. Provisional Patent Application No. 62 / 705,881, filed on July 20, 2020, entitled “TRI-STATE HYBRID AUTOMATIC REPEAT REQUEST FEEDBACK”; and U.S. Non-Provisional Patent Application No. 17 / 305,562, filed on July 9, 2021, entitled “TRI-STATE HYBRID AUTOMATIC REPEAT REQUEST FEEDBACK”, and the above applications are hereby expressly incorporated herein by reference. Technical Field

[0003]

[0006] Generally speaking, aspects of the present disclosure relate to wireless communications, and to techniques and apparatus for three-state hybrid automatic repeat request (HARQ) feedback. 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 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). LTE / LTE-Advanced is a set of enhancements to the Universal Mobile Telecommunications System (UMTS) mobile standard released by the Third Generation Partnership Project (3GPP).

[0005] A wireless network may include multiple base stations (BSs) that can support communications for multiple user equipments (UEs). A UE may communicate with a BS via a downlink and an uplink. 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.

[0006] The above 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. NR (which may also be referred to as 5G) is an enhancement set to the LTE mobile standard released by 3GPP. NR is designed to better integrate with other open standards 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 carrier aggregation, so as to better support mobile broadband Internet access. As the demand for mobile broadband access continues to grow, it is still useful to make further improvements to LTE, NR and other radio access technologies. Summary of the invention

[0007] In some aspects, a method of wireless communication performed by a user equipment (UE) includes: receiving communications from a base station, wherein the communications include a control channel that schedules a data channel or at least one of the data channels scheduled by the control channel; and sending three-state feedback indicating a result of decoding the communications, wherein the three-state feedback indicates whether decoding of the control channel was unsuccessful, decoding of the control channel was successful and decoding of the data channel was unsuccessful, or decoding of the control channel and the data channel was successful.

[0008] In some aspects, a method of wireless communication performed by a base station includes: sending a communication to a UE, wherein the communication includes a control channel that schedules a data channel or at least one of the data channels scheduled by the control channel; and receiving three-state feedback indicating a result of decoding the communication, wherein the three-state feedback indicates whether decoding of the control channel is unsuccessful, decoding of the control channel is successful and decoding of the data channel is unsuccessful, or decoding of the control channel and the data channel is successful.

[0009] In some aspects, a user device for wireless communication includes: a memory; and one or more processors operatively coupled to the memory, the memory and the one or more processors being configured to: receive communications from a base station, wherein the communications include a control channel that schedules a data channel or at least one of the data channels scheduled by the control channel; and send three-state feedback indicating a result of decoding the communications, wherein the three-state feedback indicates whether decoding of the control channel was unsuccessful, decoding of the control channel was successful and decoding of the data channel was unsuccessful, or decoding of the control channel and the data channel was successful.

[0010] In some aspects, a base station for wireless communication includes: a memory; and one or more processors operatively coupled to the memory, the memory and the one or more processors configured to: send communications to a UE, wherein the communications include at least one of a control channel that schedules a data channel or the data channels scheduled by the control channel; and receive three-state feedback indicating a result of decoding the communications, wherein the three-state feedback indicates whether decoding of the control channel is unsuccessful, decoding of the control channel is successful and decoding of the data channel is unsuccessful, or decoding of the control channel and the data channel is successful.

[0011] In some aspects, a non-transitory computer-readable medium storing one or more instructions for wireless communication includes: one or more instructions that, when executed by one or more processors of a user device, cause the one or more processors to: receive communications from a base station, wherein the communications include at least one of a control channel that schedules a data channel or the data channels scheduled by the control channel; and send three-state feedback indicating a result of decoding the communications, wherein the three-state feedback indicates whether decoding of the control channel was unsuccessful, decoding of the control channel was successful and decoding of the data channel was unsuccessful, or decoding of the control channel and the data channel was successful.

[0012] In some aspects, a non-transitory computer-readable medium storing one or more instructions for wireless communication includes: one or more instructions that, when executed by one or more processors of a base station, cause the one or more processors to: send a communication to a UE, wherein the communication includes at least one of a control channel that schedules a data channel or the data channel scheduled by the control channel; and receive three-state feedback indicating a result of decoding the communication, wherein the three-state feedback indicates whether decoding of the control channel was unsuccessful, decoding of the control channel was successful and decoding of the data channel was unsuccessful, or decoding of the control channel and the data channel was successful.

[0013] In some aspects, an apparatus for wireless communication includes: a unit for receiving communications from a base station, wherein the communications include at least one of a control channel that schedules a data channel or the data channels scheduled by the control channel; and a unit for sending three-state feedback indicating a result of decoding the communications, wherein the three-state feedback indicates whether decoding of the control channel was unsuccessful, decoding of the control channel was successful and decoding of the data channel was unsuccessful, or decoding of the control channel and the data channel was successful.

[0014] In some aspects, an apparatus for wireless communication includes: a unit for sending communications to a UE, wherein the communications include at least one of a control channel that schedules a data channel or the data channels scheduled by the control channel; and a unit for receiving three-state feedback indicating a result of decoding the communications, wherein the three-state feedback indicates whether decoding of the control channel is unsuccessful, decoding of the control channel is successful and decoding of the data channel is unsuccessful, or decoding of the control channel and the data channel is successful.

[0015] In some aspects, a method of wireless communication performed by a first wireless node includes: receiving one or more communications from a second wireless node, wherein the one or more communications include at least one of the following: a control channel that schedules a data channel, or the control channel and the data channel; and sending three-state feedback indicating the results of decoding the one or more communications, wherein the three-state feedback indicates whether decoding of the control channel is unsuccessful, decoding of the control channel is successful and decoding of the data channel is unsuccessful, or decoding of the control channel and the data channel is successful.

[0016] In some aspects, a method of wireless communication performed by a first wireless node includes: sending one or more communications to a second wireless node, wherein the one or more communications include at least one of the following: a control channel that schedules a data channel, or the control channel and the data channel; and receiving three-state feedback indicating the results of decoding the one or more communications, wherein the three-state feedback indicates whether decoding of the control channel is unsuccessful, decoding of the control channel is successful and decoding of the data channel is unsuccessful, or decoding of the control channel and the data channel is successful.

[0017] In some aspects, an apparatus for wireless communication at a first wireless node includes: a memory; and one or more processors coupled to the memory, the one or more processors configured to: receive one or more communications from a second wireless node, wherein the one or more communications include at least one of the following: a control channel that schedules a data channel, or the control channel and the data channel; and send three-state feedback indicating the results of decoding the one or more communications, wherein the three-state feedback indicates whether decoding of the control channel is unsuccessful, decoding of the control channel is successful and decoding of the data channel is unsuccessful, or decoding of the control channel and the data channel is successful.

[0018] In some aspects, an apparatus for wireless communication at a first wireless node includes: a memory; and one or more processors coupled to the memory, the one or more processors configured to: send one or more communications to a second wireless node, wherein the one or more communications include at least one of the following: a control channel that schedules a data channel, or the control channel and the data channel; and receive three-state feedback indicating a result of decoding the one or more communications, wherein the three-state feedback indicates whether decoding of the control channel was unsuccessful, decoding of the control channel was successful and decoding of the data channel was unsuccessful, or decoding of the control channel and the data channel was successful.

[0019] In some aspects, a non-transitory computer-readable medium storing an instruction set for wireless communication includes one or more instructions that, when executed by one or more processors of a first wireless node, cause the first wireless node to: receive one or more communications from a second wireless node, wherein the one or more communications include at least one of the following: a control channel that schedules a data channel, or the control channel and the data channel; and send three-state feedback indicating a result of decoding the one or more communications, wherein the three-state feedback indicates whether decoding of the control channel was unsuccessful, decoding of the control channel was successful and decoding of the data channel was unsuccessful, or decoding of the control channel and the data channel was successful.

[0020] In some aspects, a non-transitory computer-readable medium storing an instruction set for wireless communication includes one or more instructions that, when executed by one or more processors of a first wireless node, cause the first wireless node to: send one or more communications to a second wireless node, wherein the one or more communications include at least one of the following: a control channel that schedules a data channel, or the control channel and the data channel; and receive three-state feedback indicating a result of decoding the one or more communications, wherein the three-state feedback indicates whether decoding of the control channel was unsuccessful, decoding of the control channel was successful and decoding of the data channel was unsuccessful, or decoding of the control channel and the data channel was successful.

[0021] In some aspects, an apparatus for wireless communication includes: a unit for receiving one or more communications from a second wireless node, wherein the one or more communications include at least one of the following: a control channel that schedules a data channel, or the control channel and the data channel; and a unit for sending three-state feedback indicating the results of decoding the one or more communications, wherein the three-state feedback indicates whether decoding of the control channel is unsuccessful, decoding of the control channel is successful and decoding of the data channel is unsuccessful, or decoding of the control channel and the data channel is successful.

[0022] In some aspects, an apparatus for wireless communication includes: a unit for sending one or more communications to a second wireless node, wherein the one or more communications include at least one of the following: a control channel that schedules a data channel, or the control channel and the data channel; and a unit for receiving three-state feedback indicating the results of decoding the one or more communications, wherein the three-state feedback indicates whether decoding of the control channel is unsuccessful, decoding of the control channel is successful and decoding of the data channel is unsuccessful, or decoding of the control channel and the data channel is successful.

[0023] In summary, aspects 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 as illustrated by the accompanying drawings and description.

[0024] The foregoing has been fairly broadly summarized according to the features and technical advantages of the examples of the present disclosure, 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 the same purpose of achieving 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 characteristics of the concepts disclosed herein (both their organization and method of operation) and the associated advantages will be better understood according to the description below. Each of the figures in the accompanying drawings is provided for the purpose of illustration and description, and is not intended to be a definition of the limitations of the claims.

[0025] Although various aspects are described in the present disclosure by illustrating some examples, it will be understood by those skilled in the art that such aspects can be implemented in many different arrangements and scenarios. Different platform types, devices, systems, shapes, sizes and / or packaging arrangements can be used to implement the innovation described herein. For example, some aspects can be implemented via an integrated chip embodiment or other non-module component-based device (e.g., end-user device, vehicle, communication device, computing device, industrial device, retail / purchase device, medical device, or device enabling artificial intelligence). Various aspects can be implemented in chip-level components, modular components, non-modular components, non-chip-level components, device-level components, or system-level components. The device incorporating the described aspects and features may include additional components and features for the implementation and implementation of the claimed and described aspects. For example, the transmission and reception of wireless signals may include multiple components for analog and digital purposes (e.g., hardware components including antennas, radio frequency chains, power amplifiers, modulators, buffers, processors, interleavers, adders, or adders). It is expected that the innovation described herein can be implemented in various devices, components, systems, distributed arrangements, or end-user devices with different sizes, shapes, and configurations. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to fully understand the above features of the present disclosure, a more specific description of the above brief summary can be obtained by referring to various aspects (some of which are shown in the accompanying drawings). However, it should be noted that the accompanying drawings only show some typical aspects of the present disclosure and are therefore not considered to limit the scope of the present disclosure, as the description may allow for other equally effective aspects. The same reference numerals in different drawings may identify the same or similar elements.

[0027] Figure 1 is a schematic diagram illustrating an example of a wireless network according to the present disclosure.

[0028] Figure 2 is a schematic diagram showing an example of communication between a base station and a UE in a wireless network according to the present disclosure.

[0029] Figure 3 is a diagram illustrating an example of HARQ feedback for a first physical downlink control channel (PDCCH) and a second PDCCH according to the present disclosure.

[0030] Figure 4 is a diagram illustrating an example of signaling associated with tri-state HARQ feedback according to the present disclosure.

[0031] Figure 5-6 is a diagram illustrating an example process associated with tri-state HARQ feedback in accordance with the present disclosure. DETAILED DESCRIPTION

[0032] The following is a more complete description of various aspects of the present disclosure 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. More specifically, these aspects are provided so that the present disclosure will be thorough 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 disclosed herein, whether the aspect is implemented independently of any other aspect of the present disclosure or implemented in combination with any other aspect. For example, using any number of aspects set forth herein, a device can be implemented or a method can be implemented. In addition, the scope of the present disclosure is intended to cover such a device or method implemented 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 disclosed herein can be embodied by one or more elements of the claims.

[0033] 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 such elements are implemented as hardware or software depends on the specific application and the design constraints imposed on the overall system.

[0034] It should be noted that although various aspects may be described herein using terminology generally associated with 5G or new radio (NR) radio access technology (RAT), various aspects of the present disclosure may be applied to other RATs, such as 3G RAT, 4G RAT and / or RATs beyond 5G (e.g., 6G).

[0035] Figure 11 is a schematic diagram showing an example of a wireless network 100 according to the present disclosure. The wireless network 100 may be or may include elements of a 5G (NR) network and / or an LTE network, as well as other examples. The wireless network 100 may include a plurality of base stations 110 (shown as BS 110a, BS 110b, BS 110c, and BS 110d) and other network entities. A base station (BS) is an entity that communicates with a user equipment (UE) and may also be referred to as an 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.

[0036] 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., several kilometers in radius) and may allow unrestricted access by UEs with service subscription. A pico cell may cover a relatively small geographic area and may allow unrestricted access by UEs with service subscription. A femto cell may cover a relatively small geographic area (e.g., a residence) and may allow restricted access by 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 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.

[0037] 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 through various types of backhaul interfaces (such as direct physical connections or virtual networks) using any suitable transport network.

[0038] 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 is capable of relaying transmissions for other UEs. Figure 1 In the example shown in , a relay BS 110d may communicate with a macro BS 110a and a UE 120d to facilitate communication between the BS 110a and the UE 120d. A relay BS may also be referred to as a relay station, a relay base station, a relay, or the like.

[0039] 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 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).

[0040] 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 via a wireless or wired backhaul.

[0041] UE 120 (e.g., 120a, 120b, 120c) can be dispersed throughout the wireless network 100, and each UE can be stationary or mobile. UE can also be referred to as an access terminal, terminal, mobile station, subscriber unit, station, etc. UE can 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 device, a camera, a gaming device, a netbook, a smartbook, an ultrabook, a medical device or apparatus, a biometric sensor / device, a wearable device (smart watch, smart clothing, smart glasses, smart wristband, smart jewelry (e.g., smart ring, smart bracelet)), an entertainment device (e.g., a music or video device, or a satellite radio unit), 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.

[0042] 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 and / or location tags, which may communicate with a base station, another device (e.g., a remote device), or some other entity. A wireless node may provide a connection to a network (e.g., a wide area network such as the Internet or a cellular network) or a connection to a network, for example, 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 (such as a processor component and / or a memory component). In some aspects, a processor component and a memory component may be coupled together. For example, a processor component (e.g., one or more processors) and a memory component (e.g., a memory) may be operationally coupled, communicatively coupled, electronically coupled, and / or electrically coupled.

[0043] 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.

[0044] In some aspects, two or more UEs 120 (e.g., shown as UE 120a and UE 120e) may communicate directly using one or more sidelink channels (e.g., without using base station 110 as an intermediary to communicate with each other). For example, UE 120 may communicate using peer-to-peer (P2P) communication, device-to-device (D2D) communication, vehicle-to-everything (V2X) protocol (e.g., which may include vehicle-to-vehicle (V2V) protocol, vehicle-to-infrastructure (V2I) protocol), and / or mesh network. 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.

[0045] Devices of the wireless network 100 may communicate using an electromagnetic spectrum, which may be subdivided into various categories, bands, channels, etc. based on frequency or wavelength. For example, devices of the wireless network 100 may communicate using an operating band having a first frequency range (FR1) (which may span from 410 MHz to 7.125 GHz), and / or may communicate using an operating band having a second frequency range (FR2) (which may span from 24.25 GHz to 52.6 GHz). Frequencies between FR1 and FR2 are sometimes referred to as mid-band frequencies. Although a portion of FR1 is greater than 6 GHz, FR1 is often referred to as a "sub-6 GHz" band. Similarly, FR2 is often referred to as a "millimeter wave" band, although it is different from the extremely high frequency (EHF) band (30 GHz–300 GHz) identified as a "millimeter wave" band by the International Telecommunication Union (ITU). Therefore, unless otherwise expressly stated, it should be understood that the term "sub-6 GHz" and the like (if used herein) can broadly refer to frequencies less than 6 GHz, frequencies within FR1, and / or mid-band frequencies (e.g., greater than 7.125 GHz). Similarly, unless otherwise expressly stated, it should be understood that the term "millimeter wave" and the like (if used herein) can broadly refer to frequencies within the EHF band, frequencies within FR2, and / or mid-band frequencies (e.g., less than 24.25 GHz). It is contemplated that the frequencies included in FR1 and FR2 may be modified, and the techniques described herein are applicable to those modified frequency ranges.

[0046] As noted above, Figure 1 is provided as an example. Other examples may differ from those described above. Figure 1 Examples described.

[0047] Figure 2 2 is a diagram illustrating an example 200 of a base station 110 communicating with a UE 120 in a wireless network 100 according to the present disclosure. The base station 110 may be equipped with T antennas 234a through 234t, and the UE 120 may be equipped with R antennas 252a through 252r, where, in general, T≥1 and R≥1.

[0048] 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) the data for the UE based at least in part on the MCS selected for each 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)) and control information (e.g., CQI requests, grants, and / or upper layer signaling), 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) or demodulation reference signals (DMRS)) and synchronization signals (e.g., primary synchronization signals (PSS) or secondary synchronization signals (SSS)). A 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 corresponding output symbol stream (e.g., for OFDM) 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. T downlink signals from modulators 232a to 232t may be transmitted via T antennas 234a to 234t, respectively.

[0049] At UE 120, antennas 252a to 252r may receive downlink signals from base station 110 and / or other base stations, and may provide received signals to demodulators (DEMOD) 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) to obtain received symbols. A 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. A receive processor 258 may process (e.g., demodulate and decode) the detected symbols, provide decoded data for UE 120 to a data sink 260, and provide decoded control information and system information to a controller / processor 280. The term "controller / processor" may refer to one or more controllers, one or more processors, or a combination thereof. The channel processor may determine a reference signal received power (RSRP) parameter, a received signal strength indicator (RSSI) parameter, a reference signal received quality (RSRQ) parameter, and / or a channel quality indicator (CQI) parameter, among other examples. In some aspects, one or more components of UE 120 may be included in housing 284.

[0050] The network controller 130 may include a communication unit 294, a controller / processor 290, and a memory 292. The network controller 130 may include, for example, one or more devices in a core network. The network controller 130 may communicate with the base station 110 via the communication unit 294.

[0051] Antennas (e.g., antennas 234a to 234t and / or antennas 252a to 252r) may include or may be included in one or more antenna panels, antenna groups, antenna element sets, and / or antenna arrays, among other examples. Antenna panels, antenna groups, antenna element sets, and / or antenna arrays may include one or more antenna elements. Antenna panels, antenna groups, antenna element sets, and / or antenna arrays may include coplanar antenna element sets and / or non-coplanar antenna element sets. Antenna panels, antenna groups, antenna element sets, and / or antenna arrays may include antenna elements within a single housing and / or antenna elements within multiple housings. Antenna panels, antenna groups, antenna element sets, and / or antenna arrays may include antennas coupled to one or more transmitting and / or receiving components (such as Figure 2 One or more antenna elements of one or more components).

[0052] 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, and / or CQI). 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), further processed by modulators 254a through 254r (e.g., for DFT-s-OFDM or CP-OFDM), and transmitted to the base station 110. In some aspects, the modulator and demodulator (e.g., MOD / DEMOD 254) of the UE 120 may be included in a modem of the UE 120. In some aspects, the UE 120 includes a transceiver. The transceiver may include any combination of antennas 252, modulators and / or demodulators 254, MIMO detectors 256, receive processors 258, transmit processors 264, and / or TX MIMO processors 266. The transceiver may be used by a processor (e.g., controller / processor 280) and memory 282 to perform aspects of any of the methods described herein (e.g., as described with reference to Figure 3-6 described).

[0053] 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 sent by the UE 120. The receive processor 238 may provide the decoded data to the data sink 239 and provide 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 via the communication unit 244. The base station 110 may include a scheduler 246 to schedule the UE 120 for downlink and / or uplink communications. In some aspects, the modulator and demodulator (e.g., MOD / DEMOD 232) of the base station 110 may be included in a modem of the base station 110. In some aspects, the base station 110 includes a transceiver. The transceiver may include any combination of antennas 234, modulators and / or demodulators 232, MIMO detectors 236, receive processors 238, transmit processors 220, and / or TX MIMO processors 230. The transceiver may be used by a processor (e.g., controller / processor 240) and memory 242 to perform aspects of any of the methods described herein, for example, as described with reference to Figure 3-6 Descriptive.

[0054] The controller / processor 240 of the base station 110, the controller / processor 280 of the UE 120, and / or Figure 2 Any other components in the controller / processor 240 of the base station 110, the controller / processor 280 of the UE 120, and / or Figure 2 Any other component in may perform or direct e.g. Figure 5 The process of 500 Figure 6 600 and / or operations of 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 (e.g., code and / or program code) for wireless communication. For example, one or more instructions, when executed by one or more processors of base station 110 and / or UE 120 (e.g., directly, or after compilation, conversion, and / or interpretation), may cause one or more processors, UE 120, and / or base station 110 to perform or instruct, for example Figure 5 The process of 500 Figure 6 The operations of process 600 and / or other processes as described herein. In some aspects, executing instructions may include running instructions, converting instructions, compiling instructions, and / or interpreting instructions, among other examples.

[0055] In some aspects, UE 120 may include: a unit for receiving one or more communications from a base station (e.g., using antenna 252, DEMOD 254, MIMO detector 256, receive processor 258, controller / processor 280, etc.), wherein the one or more communications include at least one of the following: a control channel that schedules a data channel, or a control channel and a data channel; and a unit for sending (e.g., using controller / processor 280, transmit processor 264, TX MIMO processor 266, MOD 254, antenna 252, etc.) three-state feedback indicating the results of decoding the one or more communications, wherein the three-state feedback indicates whether the decoding of the control channel was unsuccessful, the decoding of the control channel was successful and the decoding of the data channel was unsuccessful, or the decoding of the control channel and the data channel was successful; etc. In some aspects, such a unit 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.

[0056] In some aspects, the base station 110 may include: a unit for sending one or more communications to the UE (e.g., using the controller / processor 240, the transmit processor 220, the TX MIMO processor 230, the MOD 232, the antenna 234, etc.), wherein the one or more communications include at least one of the following: a control channel that schedules a data channel, or a control channel and a data channel; and a unit for receiving (e.g., using the antenna 234, the DEMOD 232, the MIMO detector 236, the receive processor 238, the controller / processor 240, etc.) three-state feedback indicating the results of decoding the one or more communications, wherein the three-state feedback indicates whether the decoding of the control channel was unsuccessful, the decoding of the control channel was successful and the decoding of the data channel was unsuccessful, or the decoding of the control channel and the data channel was successful; etc. In some aspects, such a unit may include a combination of Figure 2 One or more components of base station 110 are depicted, such as antenna 234, DEMOD 232, MIMO detector 236, receive processor 238, controller / processor 240, transmit processor 220, TX MIMO processor 230, MOD 232, antenna 234, and the like.

[0057] Although Figure 2 The blocks in the 200 and 210 are shown as distinct components, but the functionality described above with respect to these blocks may be implemented in a single hardware, software, or combined component or in various combinations of components. For example, the functionality described with respect to the transmit processor 264, the receive processor 258, and / or the TX MIMO processor 266 may be performed by or under the control of the controller / processor 280.

[0058] As noted above, Figure 2 is provided as an example. Other examples may differ from those described above. Figure 2 Examples described.

[0059] The base station may send a control channel (e.g., a physical downlink control channel (PDCCH), etc.) carrying control information (such as downlink control information (DCI) or uplink control information (UCI)) to the UE. In some cases, the DCI may schedule subsequent data communications, which may be sent by the base station on a data channel (such as a physical downlink shared channel (PDSCH)). The data communication may include a single transport block (TB) or may include multiple code blocks (CBs), referred to as a code block group (CBG).

[0060] There are various possible results of receiving a control channel carrying DCI and scheduled data communications. For example, the UE may fail to decode the DCI, which means that the UE is not aware of the scheduled data communications, and therefore reception of the scheduled data communications may fail. As another example, the UE may successfully decode the DCI, and then may fail to decode the scheduled data communications. As yet another example, the UE may successfully decode the DCI and the scheduled data communications.

[0061] The UE may provide feedback to the base station indicating the result of decoding the control channel and the scheduled data communication. For example, the feedback may include hybrid automatic repeat request (HARQ) feedback, such as HARQ confirmation (HARQ-ACK) or HARQ negative ACK (HARQ-NACK). HARQ feedback provides a mechanism for triggering retransmission of undecoded transmissions. In order to provide HARQ feedback, the UE may generate a HARQ codebook including a value indicating the result of receiving a TB or CBG. For example, the HARQ codebook may include one bit for each TB or CBG to be received by the UE. The value may indicate whether the data communication corresponding to the TB or CBG is decoded. For example, a positive value (e.g., a first binary value) may indicate that the data communication is decoded, and a negative value (e.g., a second binary value) may indicate that the data communication is not decoded. If the HARQ codebook indicates that the data communication is not decoded, the base station may retransmit the data communication. In some aspects, the base station may modify the transmission configuration for the data communication, such as by making the data communication more robust, increasing the transmit power, and so on, thereby increasing the possibility of receiving the retransmitted data.

[0062] However, the use of binary or two-state HARQ feedback may not provide sufficient information to distinguish whether the failure to receive data communication is due to a failure to decode the data communication itself (when the corresponding DCI is successfully decoded) or a failure to decode the DCI that schedules the data communication. These two failure situations may be associated with different mitigation actions. For example, if the failure to decode the DCI causes the failure, the base station may take actions to improve the robustness of the control channel (such as increasing the power level of the control channel, changing the beam used to send the control channel, or using a larger aggregation level for the control channel), and if the failure to decode the data communication causes the failure, the base station may take actions to improve the robustness of the data channel (such as increasing the power level of the data channel, changing the beam used to send the data channel, or using a smaller modulation and coding scheme for retransmission of the data channel). Taking actions to improve the robustness of both the data channel and the control channel may involve significant overhead and waste BS and UE resources, because only one of these reasons may be the cause of the failure.

[0063] The techniques and apparatus described herein provide tri-state HARQ feedback for data communications. For example, the tri-state HARQ feedback may indicate three results: a first result indicating a failure to decode a DCI, a second result indicating a successful DCI decoding and a failure to decode the corresponding data communication, and a third result indicating a successful decoding of the data communication. By providing tri-state HARQ feedback, the UE may enable the base station to perform a more customized response to a NACK because the base station may determine whether the cause of the NACK is associated with a failed DCI reception or a failed PDSCH reception. In this way, utilization of the radio resources of the UE and the base station is improved by reducing the likelihood of repeated reception failures.

[0064] Figure 3 is a schematic diagram of an example 300 showing HARQ feedback for a first PDCCH and a second PDCCH according to the present disclosure. Example 300 shows communications received and sent by a UE (e.g., UE 120). Example 300 involves five time slots, which are represented by squares: the first three downlink time slots, represented by "D" under each time slot; special time slots, represented by "S"; and uplink time slots, represented by "U". It is expected that the UE will only receive communications in downlink time slots, only send communications in uplink time slots, and may receive or send communications in special time slots.

[0065] As shown, the UE may receive a first PDCCH (e.g., PDCCH1). PDCCH1 may carry DCI for scheduling a first data channel (e.g., PDSCH 1) in a subsequent time slot. As further shown, the UE may receive a second PDCCH (e.g., PDCCH2). PDCCH2 may carry DCI for scheduling a second data channel (e.g., PDSCH2) in a subsequent time slot. If the UE fails to decode PDCCH1, the UE may necessarily fail to receive and decode PDSCH1, because if the UE fails to decode PDSCH 1, the UE will not know the existence of PDSCH1. This scenario may be referred to as control failure or c-failure. In some cases, the UE successfully decodes PDCCH1 and then fails to decode PDSCH1. In other cases, the UE successfully decodes PDCCH1 and PDSCH1. In each of these cases, the UE provides HARQ feedback in the uplink time slot, as shown by reference numeral 310. For example, the UE may generate a HARQ codebook based at least in part on selecting an orthogonal sequence from a set of orthogonal sequences, wherein the orthogonal sequence indicates a result of decoding PDSCH1 and PDSCH2.

[0066] In some aspects, the UE may provide dual-state HARQ feedback. The dual-state HARQ feedback may include an ACK (indicating that the corresponding PDSCH was successfully decoded) or a NACK (indicating that the corresponding PDSCH was not successfully decoded). However, the NACK may not indicate whether the UE failed to decode the corresponding PDSCH due to a control failure (e.g., a failure to decode the PDCCH for scheduling the corresponding PDSCH) or due to a failure to decode the corresponding PDSCH itself after successfully decoding the PDCCH. The failure to decode the corresponding PDSCH itself after successfully decoding the PDCCH may be referred to herein as a true NACK.

[0067] The techniques and apparatus described herein provide for a UE to send tri-state HARQ feedback. Tri-state HARQ feedback is feedback that distinguishes between a failure to decode a PDSCH due to a failure to decode a PDCCH for scheduling a PDSCH and a failure to decode a PDSCH after successfully decoding a PDCCH for scheduling a PDSCH. For example, tri-state HARQ feedback may be associated with three potential states: a first state indicating a control failure, a second state indicating a true NACK, and a third state indicating an ACK. In example 300, tri-state HARQ feedback may indicate that PDSCH1 is successfully decoded, PDCCH1 is successfully decoded and PDSCH1 is not successfully decoded, or PDCCH1 is not successfully decoded (and similarly for PDSCH 2 and PDCCH2). Based at least in part on tri-state HARQ feedback, a base station may perform more appropriate tasks to improve retransmissions compared to bi-state HARQ feedback. For example, the base station may determine whether a failure to decode a PDSCH is caused by a control failure or a true NACK, and may therefore selectively modify the PDCCH or PDSCH to improve the likelihood of successful reception without unduly increasing overhead and reducing throughput.

[0068] As a first example, assume that UE 120 fails to decode PDCCH 1 and successfully decodes PDCCH 2. Based on the total downlink assignment index (DAI) field in PDCCH 2, UE 120 can determine that BS 110 has scheduled a total of 2 PDSCHs. Therefore, UE 120 can feedback two bits in the HARQ-ACK after the total DAI. It is further assumed that UE 120 also successfully decodes the second PDSCH (corresponding to PDCCH 2). Using three-state HARQ feedback, UE 120 can feedback a codebook indicating {control failure, ACK}, where the first entry is feedback for the first DL transmission (e.g., PDCCH 1), and the second entry is feedback for the second DL transmission (e.g., PDCCH 2 and the second PDSCH). In contrast, in this scenario, using two-state HARQ feedback, UE 120 can feedback a codebook indicating {NACK, ACK}.

[0069] As a second example, assume that UE 120 fails to decode PDCCH 1 and successfully decodes PDCCH 2. In this case, based at least in part on the total DAI field in PDCCH 2, UE 120 can determine that BS 110 has scheduled 2 PDSCHs in total (e.g., sent 2 PDCCHs), and UE 120 can therefore feedback two bits in the HARQ-ACK feedback based on the total DAI. If UE 120 fails to decode the second PDSCH, using three-state HARQ feedback, UE 120 can feedback a codebook indicating {control failure, NACK}, where the first entry is feedback for the first DL transmission and the second entry is feedback for the second DL transmission. However, with two-state feedback, UE 120 can feedback a codebook indicating {NACK, NACK}.

[0070] In some aspects, tri-state HARQ feedback may be useful in beam-based communication systems, such as communication systems operating in FR2 or frequency range 4 (FR4), where FR4 covers approximately 52.6 GHz to 71 GHz. For example, assume that BS 110 does not know which beam should be used to send PDCCH to UE 120. Then, BS 110 may schedule PDSCH 1 using PDCCH 1. BS 110 may send PDCCH 1 using beam 1 (e.g., BS 110 may send PDCCH 1 using PDCCH transmission configuration indicator (TCI) / quasi co-location (QCL) state 1). BS 110 may schedule PDSCH 2 using PDCCH 2, and may send PDCCH 2 using beam 2 (e.g., as PDCCH TCI / QCL state 2). Assume that at UE 120, decoding of PDCCH 1 and PDCCH 2 is successfully decoded, but decoding of PDSCH 2 fails. With tri-state HARQ feedback, UE 120 may feedback {control failure, NACK}. Based at least in part on the feedback, BS 110 may determine that PDCCH 1 failed and PDCCH 2 succeeded. BS 110 may then determine that beam 2 is superior to beam 1 for transmission of the PDCCH. Therefore, BS 110 may use beam 2 to schedule future PDSCH transmissions and retransmissions for future PDCCH transmissions. In summary, control failure may be used as a beam indicator / feedback to inform BS 110 which beam is good for PDCCH and / or which beam is poor for PDCCH. In addition, BS 110 may identify or calibrate other qualities of PDCCH transmissions, such as aggregation level, PDCCH transmit power, etc., based at least in part on the feedback.

[0071] As noted above, Figure 3is provided as an example. Other examples may differ from those described above. Figure 3 Examples described.

[0072] Figure 4 1 is a diagram illustrating an example 400 of signaling associated with tri-state HARQ feedback according to the present disclosure. As shown, the example 400 includes a UE 120 and a BS 110.

[0073] As in Figure 4 4 and indicated by reference numeral 410, UE 120 may send UE capability information to BS 110. For example, the UE capability information may indicate whether UE 120 is capable of determining and providing tri-state HARQ feedback. In some aspects, the UE capability information may indicate one or more parameters associated with tri-state HARQ feedback, such as a minimum processing timeline for determining and / or providing tri-state HARQ feedback, etc.

[0074] As shown by reference numeral 420, BS 110 may send configuration information to UE 120. The configuration information may indicate that tri-state HARQ feedback is enabled at UE 120. For example, BS 110 may configure UE 120 (e.g., via radio resource control (RRC) signaling, etc.) to determine and send tri-state HARQ feedback. In some aspects, the configuration for providing tri-state HARQ feedback may be per UE granularity. For example, BS 110 may configure a first UE to send tri-state HARQ feedback, and may configure a second UE to send bi-state HARQ feedback. In some aspects, the configuration for providing tri-state HARQ feedback may be per component carrier (CC) granularity. For example, BS 110 may configure UE 120 to send tri-state HARQ feedback on a first CC, and to send bi-state HARQ feedback on a second CC. In such a case, UE 120 may send tri-state HARQ feedback and bi-state HARQ feedback in the same HARQ codebook.

[0075] In some aspects, the configuration information may indicate a condition for determining tri-state HARQ feedback. For example, the condition may indicate that if UE 120 is configured with a HARQ codebook for ultra-reliable low-latency communication (URLLC), UE 120 will determine tri-state HARQ feedback, otherwise (e.g., if UE 120 is configured with a HARQ codebook for enhanced mobile broadband (eMBB) communication) determine bi-state HARQ feedback. As another example, the condition may indicate that if a high-reliability block error rate (BLER) table (such as a table with 10 -4If the UE 120 determines the modulation and coding scheme (MCS) or channel quality indicator (CQI) for the PDSCH based on the BLER table of the BLER threshold (e.g., the UE 120 determines the tri-state HARQ feedback) for the PDSCH, the UE 120 will determine the tri-state HARQ feedback. As a third example, the condition may indicate that the UE 120 determines the tri-state HARQ feedback only when the code block group (CBG) based PDSCH is not configured (e.g., if the transport block (TB) based PDSCH is configured, the UE 120 will determine the tri-state HARQ feedback).

[0076] As shown by reference numeral 430, BS 110 may send a control channel (e.g., a PDCCH) to UE 120. As indicated by the curved arrow, the control channel may schedule a data channel shown by reference numeral 440. UE 120 may attempt to decode the control channel. If UE 120 successfully decodes the control channel and determines that the data channel is scheduled, UE 120 may attempt to decode the data channel. In some aspects, the control channel and the data channel may be associated with a millimeter wave frequency range (such as FR2 or frequency range 4). As shown by reference numeral 450, UE 120 may determine a tri-state HARQ feedback based at least in part on attempting to decode the control channel and the data channel. For example, UE 120 may generate a tri-state HARQ feedback indicating a control failure (e.g., if UE 120 fails to decode the control channel shown by reference numeral 430), a true NACK (e.g., if UE 120 successfully decodes the control channel and fails to decode the data channel shown by reference numeral 440), or an ACK (e.g., if UE 120 successfully decodes the data channel). In some aspects, the UE 120 may selectively generate dual-state HARQ feedback or tri-state HARQ feedback, for example based at least in part on one or more of the conditions described in conjunction with reference numeral 420. As shown by reference numeral 460, the UE 120 may send tri-state HARQ feedback (such as on a physical uplink control channel (PUCCH) and / or via uplink control information). In some aspects, the UE 120 may send dual-state HARQ feedback (if determined), multi-state HARQ feedback (such as associated with HARQ feedback for CBG-based PDSCH), or a combination of dual-state, tri-state, and / or multi-state HARQ feedback.

[0077] In some aspects, the UE 120 may selectively generate dual-state HARQ feedback or tri-state HARQ feedback based at least in part on how many TBs or PDSCHs are scheduled by the control channel. For example, in some cases, the UE 120 may receive multiple control channels for scheduling multiple TBs or PDSCHs. In this case, the UE 120 may send tri-state HARQ feedback only when there are multiple TBs or PDSCHs to be confirmed in the HARQ-ACK codebook. If a single TB or PDSCH is to be confirmed in the HARQ-ACK codebook, the UE 120 may use dual-state HARQ feedback. This may resolve the ambiguity about whether the UE 120 missed the PDCCH in the case of a single TB or PDSCH, because in the case of a single TB or PDSCH, the UE 120 cannot determine whether the second PDCCH was missed.

[0078] In some aspects, UE 120 can calculate the value of the UE 120 based at least in part on a base 3 exponential expression (e.g., 3 K , where K is the size of the physical uplink control channel (PUCCH) payload used to carry the three-state HARQ feedback) to generate three-state HARQ feedback. For example, the three-state HARQ feedback can be based at least in part on a ternary (e.g., ternary) system, and the two-state HARQ feedback can be based at least in part on a binary system. In some aspects, the three-state HARQ feedback can be generated at least in part based on: a sequence-based PUCCH. The sequence-based PUCCH can be based at least in part on multiple orthogonal sequences. For example, the UE 120 and / or the BS 110 can generate N*M orthogonal sequences (e.g., code points) based at least in part on the Kronecker product of the discrete Fourier transform (DFT) of n and S (at cyclic shift (CS) index m) (e.g., DFT(n)*S(CS index m)), for n=0, 1, ..., N-1 and m=0, 1, ..., M-1. N may represent the number of OFDM symbols, M may represent the number of tones, and S is a cell-specific low peak-to-average power ratio (PAPR) sequence of length M. Assuming PUCCH payload size = K, then 3 orthogonal code points / sequences may be selected from the above N*M orthogonal code points / sequences. K code points to generate a size of 3 K To send a payload of K ternary numbers (ternary numbers), for example, t0t1t2…t K-1 , UE 120 can convert the payload ternary stream t0t1t2…t K-1 Converted to a decimal number k, the kth code point in the constructed codebook can then be sent.

[0079] The selection of the sequence may be based at least in part on an independent selection (where the DFT index and the CS index corresponding to the sequence are selected independently of each other) or a joint selection (where the DFT index and the CS index are selected jointly with each other). For independent selection, consider a PUCCH payload size of K, resulting in a codebook size of 3 K In this case, BS 110 may signal two values ​​K1 and K2 to UE 120, where K1+K2=K. K1 and K2 may indicate the payload partition between the DFT domain and the CS domain. UE 120 may select N1=3 from [0, 1, ..., N-1] DFT matrices (where N1=3^K1≤N). K1 DFT row / column indexes with the largest possible annular gap in the selected index to combat channel Doppler shift. UE 120 may also select M2=3 from the [0, 1, ..., M-1] CS indices applied to S K2 CS index (where M2=3 K2 ≤M), with the largest possible annular gap in the selected index to combat channel delay spread. For joint selection, consider DFT row / column indices of n=0, 1, 2, ..., N-1 and CS indices of m=0, 1, 2, ..., M-1. In this case, a set of joint indices j can be constructed based on the above two indices. For example, j=n*M+m or j=m*N+n, where j=0, 1, 2, ..., M*N-1. UE 120 can select 3 from {j=0, 1, 2, ..., M*N-1} K The subset of indices, where K is the payload size. The selection of the subset may be from a starting index j_start, and with an offset j_offset to pick an index from the full set {j=0, 1, 2, ..., M*N-1}, where j_start is signaled by the BS 110, and j_offset may be selected by the UE 120 based on j_offset=floor(M*N / (3 K )) is derived or signaled by BS 110.

[0080] In some aspects, UE 120 may determine and send HARQ feedback for a CBG-based PDSCH. A CBG-based PDSCH may include multiple CBGs scheduled by a PDCCH. UE 120 may provide HARQ feedback for each CBG. Thus, if UE 120 is to provide feedback indicating whether a control failure has occurred for X CBGs, UE 120 may generate 2 X +1 HARQ feedback state, which corresponds to a pair of ACK / NACK states for each CBG (2 XIf UE 120 generates HARQ feedback using sequence-based PUCCH, UE 120 may use a one-to-one mapping between states and sequences to convert the 2 X +1 state mapped to 2 X +1 sequence index. For example, UE 120 may map the control failure state to sequence 0. UE 120 may then map other states (such as b0b1b2…b X-1 ): b0b1b2…b X-1 is converted into an integer L, and then L is mapped to the (L+1)th sequence (i.e., sequence L plus 1) in the sequence codebook (because the initial sequence has been used for the control failure state). Therefore, UE 120 can reduce the latency associated with CBG-based feedback and can enable control failure indication in HARQ feedback for CBG-based PDSCH.

[0081] As shown by reference numeral 470, in some aspects, BS 110 may modify the configuration for subsequent communications based at least in part on the tri-state HARQ feedback. For example, BS 110 may modify the code rate, transmission configuration indicator state, transmit power, etc. for subsequent communications. The subsequent communication may include a retransmission of a control channel or a data channel, or may be a transmission different from the control channel or the data channel. As a specific example, consider communications in FR2. In the case where BS 110 transmits PDCCH1 using beam 1 and transmits PDCCH2 using beam 2, if UE 120 provides tri-state HARQ feedback indicating a control failure for PDCCH1 and a true NACK for PDCCH2, BS 110 may determine that beam 1 is worse than beam 2, and may use beam 2 to transmit PDCCH to schedule retransmission of PDSCH1 corresponding to PDCCH1. Therefore, the tri-state HARQ feedback indicator may be considered an implicit beam feedback indicator.

[0082] Figure 5 is a diagram illustrating an example process 500, performed, for example, by a first wireless node, in accordance with the present disclosure. The example process 500 is an example in which a first wireless node (eg, UE 120, BS 110, etc.) performs operations associated with tri-state HARQ feedback.

[0083] like Figure 5As shown in , in some aspects, process 500 may include: receiving one or more communications from a second wireless node, wherein the one or more communications include at least one of the following: a control channel that schedules a data channel, or a control channel and a data channel (block 510). For example, a first wireless node (e.g., using antenna 252, DEMOD 254, MIMO detector 256, receive processor 258, controller / processor 280, etc.) may receive one or more communications from a second wireless node, as described above, for example, with reference to Figure 3 and 4 In some aspects, the one or more communications include at least one of: a control channel scheduling a data channel, or a data channel scheduled by a control channel.

[0084] like Figure 5 As further shown in FIG. 5 , in some aspects, process 500 may include sending three-state feedback indicating a result of decoding one or more communications, wherein the three-state feedback indicates whether decoding of a control channel was unsuccessful, decoding of the control channel was successful and decoding of a data channel was unsuccessful, or decoding of the control channel and the data channel was successful (block 520). For example, a first wireless node (e.g., using controller / processor 280, transmit processor 264, TX MIMO processor 266, MOD 254, antenna 252, etc.) may send three-state feedback indicating a result of decoding a communication, as described above, for example, with reference to FIG. Figure 3 and / or as described in 4. In some aspects, the three-state feedback indicates whether decoding of the control channel is unsuccessful, decoding of the control channel is successful and decoding of the data channel is unsuccessful, or decoding of the control channel and the data channel is successful.

[0085] Process 500 may include additional aspects, such as any single aspect or any combination of the aspects described below and / or in conjunction with one or more other processes described elsewhere herein.

[0086] In a first aspect, process 500 includes sending capability information indicating that a first wireless node supports three-state feedback; and receiving configuration information indicating provision of three-state feedback.

[0087] In a second aspect, alone or in combination with the first aspect, at least one of the capability information or the configuration information is specific to a downlink component carrier (CC).

[0088] In a third aspect, alone or in combination with one or more of the first and second aspects, at least one of the capability information or the configuration information is specific to the first wireless node.

[0089] In a fourth aspect, alone or in combination with one or more of the first to third aspects, sending the three-state feedback is at least partially based on the three-state feedback being generated using an ultra-reliable low-latency communication (URLLC) feedback codebook.

[0090] In a fifth aspect, either alone or in combination with one or more of aspects 1 to 4, sending three-state feedback is at least partially based on a high reliability block error rate (BLER) table for determining a modulation and coding scheme (MCS) or a channel quality indicator (CQI) associated with a data channel.

[0091] In a sixth aspect, alone or in combination with one or more of the first to fifth aspects, sending the three-state feedback is based at least in part on one or more communications being associated with a single transport block.

[0092] In a seventh aspect, alone or in combination with one or more of the first to sixth aspects, sending three-state feedback is based at least in part on one or more communications not being configured with a code block group (CBG) based shared channel.

[0093] In an eighth aspect, alone or in combination with one or more of the first to seventh aspects, sending the three-state feedback is based at least in part on one or more communications including a plurality of transport blocks or a plurality of shared channels.

[0094] In the ninth aspect, alone or in combination with one or more of the first to eighth aspects, the one or more communications are first communications, and process 500 also includes: sending binary feedback based at least in part on the second communication including a single transmission block or a single shared channel, wherein the binary feedback indicates whether decoding of a data channel of the second communication is successful or unsuccessful.

[0095] In the tenth aspect, alone or in combination with one or more of the first to ninth aspects, the three-state feedback is generated at least in part based on a codebook, which is generated at least in part based on a plurality of orthogonal sequences, wherein the codebook is generated at least in part based on an exponential expression with base 3.

[0096] In an eleventh aspect, alone or in combination with one or more of the first to tenth aspects, process 500 includes: generating three-state feedback using a codebook based at least in part on the following operations: converting a set of ternary feedback values ​​to decimal values; and selecting a codeword from the codebook based at least in part on the decimal values.

[0097] In the twelfth aspect, alone or in combination with one or more of the first to eleventh aspects, one or more communications are received on a CBG-based data channel comprising one or more CBGs, and the three-state feedback includes a binary feedback value for each of the one or more CBGs, indicating whether the decoding of each CBG is successful or unsuccessful, and a feedback value indicating whether the decoding of a control channel is successful or unsuccessful, wherein the control channel is associated with one or more CBGs.

[0098] In a thirteenth aspect, alone or in combination with one or more of the first to twelfth aspects, the process 500 includes: mapping the binary feedback value and the feedback value to corresponding sequence indexes in a plurality of orthogonal sequences of a codebook.

[0099] In a fourteenth aspect, alone or in combination with one or more of the first to thirteenth aspects, the communication is associated with a millimeter wave frequency range.

[0100] Although Figure 5 Example blocks of process 500 are shown, but in some aspects, process 500 may include Figure 5 The blocks depicted in the process 500 may include additional blocks, fewer blocks, different blocks, or blocks arranged in a different manner than those depicted in the process 500. Additionally or alternatively, two or more blocks in the blocks of process 500 may be executed in parallel.

[0101] Figure 6 6 is a diagram illustrating an example process 600 performed, for example, by a first wireless node according to the present disclosure. The example process 600 is a diagram in which the first wireless node (e.g., base station 110, UE 120, Figure 5 An example of performing operations associated with tri-state HARQ feedback in accordance with the present invention.

[0102] like Figure 6 As shown in , in some aspects, process 600 may include: sending one or more communications to a second wireless node, wherein the one or more communications include at least one of the following: a control channel that schedules a data channel, or a control channel and a data channel (block 610). For example, a first wireless node (e.g., using controller / processor 240, transmit processor 220, TX MIMO processor 230, MOD 232, antenna 234, etc.) may send one or more communications to a UE, as described above, for example, with reference to Figure 3 And / or as described in 4. In some aspects, the one or more communications include at least one of the following: a control channel scheduling a data channel, or a control channel and a data channel.

[0103] like Figure 6As further shown in FIG. 6 , in some aspects, process 600 may include receiving three-state feedback indicating a result of decoding one or more communications, wherein the three-state feedback indicates whether decoding of a control channel was unsuccessful, decoding of the control channel was successful and decoding of a data channel was unsuccessful, or decoding of the control channel and the data channel was successful (block 620). For example, a first wireless node (e.g., using antenna 234, DEMOD 232, MIMO detector 236, receive processor 238, controller / processor 240, etc.) may receive three-state feedback indicating a result of decoding one or more communications, as described above, for example, with reference to FIG. Figure 3 and / or as described in 4. In some aspects, the three-state feedback indicates whether decoding of the control channel is unsuccessful, decoding of the control channel is successful and decoding of the data channel is unsuccessful, or decoding of the control channel and the data channel is successful.

[0104] Process 600 may include additional aspects, such as any single aspect or any combination of the aspects described below and / or in conjunction with one or more other processes described elsewhere herein.

[0105] In a first aspect, the one or more communications is a first communication, and process 600 includes sending a second communication using a modified control channel configuration relative to the first communication based at least in part on tri-state feedback indicating that decoding of the control channel was unsuccessful.

[0106] In a second aspect, either alone or in combination with the first aspect, the modified control channel configuration is based at least in part on feedback indicating successful decoding of another control channel sent using the modified control channel configuration.

[0107] In a third aspect, alone or in combination with one or more of the first and second aspects, process 600 includes: receiving capability information indicating that the UE supports three-state feedback; and sending configuration information indicating providing three-state feedback.

[0108] In a fourth aspect, alone or in combination with one or more of the first to third aspects, at least one of the capability information or the configuration information is specific to a downlink CC.

[0109] In a fifth aspect, alone or in combination with one or more of the first to fourth aspects, at least one of the capability information or the configuration information is UE-specific.

[0110] In a sixth aspect, alone or in combination with one or more of the first to fifth aspects, sending the three-state feedback is at least partially based on the three-state feedback being generated using a URLLC feedback codebook.

[0111] In a seventh aspect, alone or in combination with one or more of the first to sixth aspects, the three-state feedback is used to determine the MCS or CQI associated with the data channel based at least in part on a high reliability BLER table.

[0112] In an eighth aspect, alone or in combination with one or more of the first to seventh aspects, the three-state feedback is based at least in part on one or more communications being associated with a single transport block.

[0113] In a ninth aspect, alone or in combination with one or more of the first to eighth aspects, the three-state feedback is based at least in part on one or more communications not being configured with a CBG-based shared channel.

[0114] In a tenth aspect, alone or in combination with one or more of the first to ninth aspects, the three-state feedback is based at least in part on one or more communications comprising a plurality of transport blocks or a plurality of shared channels.

[0115] In the eleventh aspect, alone or in combination with one or more of the first to tenth aspects, the one or more communications are a first communication, and process 500 also includes: receiving binary feedback based at least in part on the second communication including a single transmission block or a single shared channel, wherein the binary feedback indicates whether decoding of a data channel of the second communication is successful or unsuccessful.

[0116] In the twelfth aspect, alone or in combination with one or more of the first to eleventh aspects, the three-state feedback is at least partially based on a codebook, which is generated at least partially based on a plurality of orthogonal sequences, wherein the codebook is generated at least partially based on an exponential expression with base 3.

[0117] In a thirteenth aspect, alone or in combination with one or more of aspects 1 to twelfth, process 600 includes: processing ternary feedback using a codebook based at least in part on: converting a set of ternary feedback values ​​to decimal values; and selecting a codeword from the codebook based at least in part on the decimal values.

[0118] In the fourteenth aspect, alone or in combination with one or more of the first to thirteenth aspects, one or more communications are sent on a CBG-based data channel comprising one or more CBGs, and the three-state feedback includes a binary feedback value for each of the one or more CBGs, indicating whether the decoding of each CBG is successful or unsuccessful, and a feedback value indicating whether the decoding of a control channel is successful or unsuccessful, wherein the control channel is associated with one or more CBGs.

[0119] In a fifteenth aspect, alone or in combination with one or more of the first to fourteenth aspects, the process 600 includes: mapping the binary feedback value and the feedback value to corresponding sequence indexes in a plurality of orthogonal sequences of a codebook.

[0120] In a sixteenth aspect, alone or in combination with one or more of the first to fifteenth aspects, one or more communications are associated with a millimeter wave frequency range.

[0121] Although Figure 6 Example blocks of process 600 are shown, but in some aspects process 600 may include Figure 6 The blocks depicted in the process 600 may include additional blocks, fewer blocks, different blocks, or blocks arranged in a different manner than those depicted in the process 600. Additionally or alternatively, two or more blocks in the blocks of process 600 may be executed in parallel.

[0122] The following provides a summary of some aspects of the disclosure:

[0123] Aspect 1: A method of wireless communication performed by a first wireless node, comprising: receiving one or more communications from a second wireless node, wherein the one or more communications include at least one of the following: a control channel for scheduling a data channel, or the control channel and the data channel; and sending three-state feedback indicating the result of decoding the communication, wherein the three-state feedback indicates whether the decoding of the control channel is unsuccessful, the decoding of the control channel is successful and the decoding of the data channel is unsuccessful, or the decoding of the control channel and the data channel is successful.

[0124] Aspect 2: The method according to aspect 1 further includes: sending capability information indicating that the first wireless node supports the three-state feedback; and receiving configuration information indicating providing the three-state feedback.

[0125] Aspect 3: The method according to aspect 2, wherein at least one of the capability information or the configuration information is specific to a downlink component carrier (CC).

[0126] Aspect 4: The method according to aspect 2, wherein at least one of the capability information or the configuration information is specific to the first wireless node.

[0127] Aspect 5: The method according to any one of aspects 1-4, wherein sending the three-state feedback is at least partially based on the three-state feedback being generated using an ultra-reliable low-latency communication (URLLC) feedback codebook.

[0128] Aspect 6: A method according to any one of Aspects 1-5, wherein sending the three-state feedback is at least partially based on a high reliability block error rate (BLER) table for determining a modulation and coding scheme (MCS) or a channel quality indicator (CQI) associated with the data channel.

[0129] Aspect 7: The method according to any one of aspects 1-6, wherein sending the three-state feedback is based at least in part on the one or more communications being associated with a single transport block.

[0130] Aspect 8: The method according to any one of aspects 1-7, wherein sending the three-state feedback is based at least in part on the one or more communications not being configured with a code block group (CBG) based shared channel.

[0131] Aspect 9: The method according to any one of aspects 1-8, wherein sending the three-state feedback is based at least in part on the one or more communications including multiple transport blocks or multiple shared channels.

[0132] Aspect 10: A method according to Aspect 9, wherein the one or more communications are a first communication, and wherein the method further comprises: sending binary feedback based at least in part on a second communication comprising a single transmission block or a single shared channel, wherein the binary feedback indicates whether decoding of a data channel of the second communication is successful or unsuccessful.

[0133] Aspect 11: A method according to any one of Aspects 1-10, wherein the three-state feedback is generated at least in part based on a codebook, the codebook is generated at least in part based on multiple orthogonal sequences, and the codebook is generated at least in part based on an exponential expression with base 3.

[0134] Aspect 12: The method according to aspect 11 further includes: generating the three-state feedback using the codebook based at least in part on the following operations: converting a set of ternary feedback values ​​into decimal values; and selecting a codeword from the codebook based at least in part on the decimal values.

[0135] Aspect 13: A method according to any one of Aspects 1-12, wherein the one or more communications are received on a CBG-based data channel comprising one or more code block groups (CBGs), and wherein the three-state feedback includes: a binary feedback value for each of the one or more CBGs, indicating whether the decoding of each CBG is successful or unsuccessful, and a feedback value indicating whether the decoding of the control channel is successful or unsuccessful, wherein the control channel is associated with the one or more CBGs.

[0136] Aspect 14: The method according to aspect 13 further comprises: mapping the binary feedback value and the feedback value to corresponding sequence indexes in a plurality of orthogonal sequences of a codebook.

[0137] Aspect 15: A method of wireless communication performed by a first wireless node, comprising: sending one or more communications to a second wireless node, wherein the one or more communications include at least one of the following: a control channel for scheduling a data channel, or the control channel and the data channel; and receiving three-state feedback indicating the result of decoding the one or more communications, wherein the three-state feedback indicates whether the decoding of the control channel is unsuccessful, the decoding of the control channel is successful and the decoding of the data channel is unsuccessful, or the decoding of the control channel and the data channel is successful.

[0138] Aspect 16: A method according to Aspect 15, wherein the one or more communications is a first communication, and the three-state feedback indicates that decoding of the control channel is unsuccessful, and wherein the method further includes: sending a second communication using a modified control channel configuration relative to the first communication based at least in part on the three-state feedback indicating that decoding of the control channel is unsuccessful.

[0139] Aspect 17: The method of aspect 16, wherein the modified control channel configuration is based at least in part on feedback indicating successful decoding of another control channel sent using the modified control channel configuration.

[0140] Aspect 18: The method according to any one of aspects 15-17 further includes: receiving capability information indicating that the second wireless node supports three-state feedback; and sending configuration information indicating providing the three-state feedback.

[0141] Aspect 19: The method according to aspect 18, wherein at least one of the capability information or the configuration information is specific to a downlink component carrier (CC).

[0142] Aspect 20: The method according to aspect 18, wherein at least one of the capability information or the configuration information is specific to the second wireless node.

[0143] Aspect 21: A method according to any one of aspects 15-20, wherein sending the three-state feedback is at least partially based on the three-state feedback being generated using an ultra-reliable low-latency communication (URLLC) feedback codebook.

[0144] Aspect 22: A method according to any one of Aspects 15-21, wherein the three-state feedback is at least partially based on a high-reliability block error rate (BLER) table for determining a modulation and coding scheme (MCS) or a channel quality indicator (CQI) associated with the data channel.

[0145] Aspect 23: The method according to any one of aspects 15-22, wherein the three-state feedback is based at least in part on the one or more communications being associated with a single transport block.

[0146] Aspect 24: The method according to any one of aspects 15-23, wherein the three-state feedback is based at least in part on the one or more communications not being configured with a code block group (CBG) based shared channel.

[0147] Aspect 25: The method according to any one of aspects 15-24, wherein the three-state feedback is based at least in part on the one or more communications comprising a plurality of transport blocks or a plurality of shared channels.

[0148] Aspect 26: A method according to Aspect 25, wherein the one or more communications are a first communication, and wherein the method further comprises: receiving binary feedback based at least in part on the second communication comprising a single transmission block or a single shared channel, wherein the binary feedback indicates whether decoding of a data channel of the second communication is successful or unsuccessful.

[0149] Aspect 27: A method according to any one of Aspects 15-26, wherein the three-state feedback is at least partially based on a codebook, the codebook is generated at least partially based on a plurality of orthogonal sequences, and wherein the codebook is generated at least partially based on an exponential expression with base 3.

[0150] Aspect 28: The method according to aspect 27 also includes: using the codebook to process the three-state feedback based at least in part on the following operations: converting a set of ternary feedback values ​​into decimal values; and selecting a codeword from the codebook based at least in part on the decimal values.

[0151] Aspect 29: A method according to any one of Aspects 15-28, wherein the one or more communications are sent on a CBG-based data channel comprising one or more code block groups (CBGs), and wherein the three-state feedback includes: a binary feedback value for each of the one or more CBGs, indicating whether the decoding of each CBG is successful or unsuccessful, and a feedback value indicating whether the decoding of the control channel is successful or unsuccessful, wherein the control channel is associated with the one or more CBGs.

[0152] Aspect 30: The method according to Aspect 29 further comprises: mapping the binary feedback value and the feedback value to corresponding sequence indexes in a plurality of orthogonal sequences of a codebook.

[0153] Aspect 31: An apparatus for wireless communication at a device, comprising: a processor; a memory coupled to the processor; and instructions, the instructions being stored in the memory and executable by the processor to cause the apparatus to perform a method according to one or more of Aspects 1-30.

[0154] Aspect 32: An apparatus for wireless communication, comprising a memory and one or more processors coupled to the memory, the one or more processors configured to perform the method according to one or more of aspects 1-30.

[0155] Aspect 33: An apparatus for wireless communication, comprising at least one unit for performing the method according to one or more of aspects 1-30.

[0156] Aspect 34: A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by a processor to perform the method according to one or more of aspects 1-30.

[0157] Aspect 35: 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 a method according to one or more of aspects 1-30.

[0158] 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 are possible in light of the above disclosure or may be acquired from practice of the various aspects.

[0159] As used herein, the term "component" is intended to be broadly interpreted as a combination of hardware and / or hardware and software. Whether referred to as software, firmware, middleware, microcode, hardware description language or other names, "software" should be broadly interpreted as meaning instructions, instruction sets, codes, code segments, program codes, programs, subroutines, software modules, applications, software applications, software packages, routines, subroutines, objects, executable files, threads of execution, processes and / or functions and other examples. As used herein, a processor is implemented with a combination of hardware and / or hardware and software. It will be apparent that the system and / or method described herein can be implemented with a combination of hardware and / or hardware and software in different forms. The actual special control hardware or software code for implementing these systems and / or methods is not to limit various aspects. Therefore, the operation and behavior of the system and / or method are described herein without citing a specific software code, and it is to be understood that software and hardware can be designed to implement the system and / or method based at least in part on the description herein.

[0160] As used herein, satisfying a threshold may refer to a value being 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.

[0161] Even if the specific combination of features is recorded in the claims and / or disclosed in the specification, these combinations are not intended to limit the disclosure of various aspects. In fact, many of these features can be combined in a manner that is not specifically recorded in the claims and / or specifically disclosed in the specification. Although each dependent claim listed below can only be directly subordinate to a claim, the disclosure of various aspects includes the combination of each dependent claim and each other claim in the claim set. As used herein, the phrase of "at least one of" referring to the list of items refers to any combination of those items, including a single member. For example, "at least one of a, b or c" is intended to cover a, b, c, ab, ac, bc and abc, and any combination of identical elements in multiples (e.g., aa, aaa, aab, aac, abb, acc, bb, bbb, bbc, cc and ccc or any other sorting of a, b and c).

[0162] Any element, action or instruction used herein should not be interpreted as critical or necessary, unless clearly described as such. In addition, as used herein, the article "a" and "an" are intended to include one or more projects, and can be used interchangeably with "one or more". In addition, as used herein, the article "the" is intended to include one or more projects quoted in conjunction with the article "the", and can be used interchangeably with "one or more". In addition, as used herein, the term "set" and "group" are intended to include one or more projects (for example, related projects, unrelated projects, or the combination of related projects and unrelated projects), and can be used interchangeably with "one or more". In the case of only expecting a project, the phrase "only one" or similar language is used. In addition, as used herein, the term "has", "have", "having" etc. are intended to be open terms. In addition, unless otherwise clearly stated, the phrase "based on" is intended to mean "based at least in part on". Furthermore, as used herein, the term "or" when used in a series is intended to be inclusive and can be used interchangeably with "and / or" unless expressly stated otherwise (eg, if used in conjunction with "either" or "only one of").

Claims

1. An apparatus for wireless communication at a first wireless node, comprising: Memory; as well as one or more processors coupled to the memory, the one or more processors configured to: Receiving one or more communications from a second wireless node, wherein the one or more communications include at least one of: a control channel that schedules a data channel, or the control channel and the data channel; and Sending tri-state feedback indicating a result of decoding the one or more communications, wherein the tri-state feedback indicates whether decoding of the control channel was unsuccessful, decoding of the control channel was successful and decoding of the data channel was unsuccessful, or decoding of the control channel and the data channel was successful.

2. The device according to claim 1, wherein: The one or more processors are further configured to: sending capability information indicating that the first wireless node supports the three-state feedback; and Configuration information indicating provision of the three-state feedback is received.

3. The device according to claim 2, wherein: At least one of the capability information or the configuration information is specific to a downlink component carrier (CC).

4. The device according to claim 2, wherein: At least one of the capability information or the configuration information is specific to the first wireless node.

5. The device according to claim 1, wherein: Transmitting the three-state feedback is based at least in part on the three-state feedback being generated using an Ultra Reliable Low Latency Communication (URLLC) feedback codebook.

6. The device according to claim 1, wherein: Sending the tri-state feedback is based at least in part on a high reliability block error rate (BLER) table being used to determine a modulation and coding scheme (MCS) or a channel quality indicator (CQI) associated with the data channel.

7. The device according to claim 1, wherein: Transmitting the tri-state feedback is based at least in part on the one or more communications being associated with a single transport block.

8. The device according to claim 1, wherein: Sending the tri-state feedback is based at least in part on the one or more communications not being configured with a code block group (CBG) based shared channel.

9. The device according to claim 1, wherein: Transmitting the tri-state feedback is based at least in part on the one or more communications comprising a plurality of transport blocks or a plurality of shared channels.

10. The device according to claim 9, wherein: The one or more communications are a first communication, and wherein the one or more processors are further configured to: Based at least in part on the second communication comprising a single transport block or a single shared channel, binary feedback is sent, wherein the binary feedback indicates whether decoding of a data channel of the second communication is successful or unsuccessful.

11. The device according to claim 1, wherein: The three-state feedback is generated at least in part based on a codebook, which is generated at least in part based on a plurality of orthogonal sequences, wherein the codebook is generated at least in part based on a base-3 exponential expression.

12. The device according to claim 11, wherein The one or more processors are further configured to: The three-state feedback is generated using the codebook based at least in part on: converting a set of ternary feedback values ​​to decimal values; and selecting a codeword from the codebook based at least in part on the decimal values.

13. The device according to claim 1, wherein: The one or more communications are received over a code block group (CBG) based data channel comprising one or more CBGs, and wherein the three-state feedback comprises: a binary feedback value for each of the one or more CBGs indicating whether decoding of each CBG was successful or unsuccessful, and A feedback value indicating whether decoding of the control channel is successful or unsuccessful, wherein the control channel is associated with the one or more CBGs.

14. The device according to claim 13, wherein: The one or more processors are further configured to: The binary feedback value and the feedback value are mapped to corresponding sequence indexes in a plurality of orthogonal sequences of a codebook.

15. An apparatus for wireless communication at a first wireless node, comprising: Memory; as well as one or more processors coupled to the memory, the one or more processors configured to: sending one or more communications to a second wireless node, wherein the one or more communications include at least one of: a control channel that schedules a data channel, or the control channel and the data channel; and Receive tri-state feedback indicating a result of decoding the one or more communications, wherein the tri-state feedback indicates whether decoding of the control channel was unsuccessful, decoding of the control channel was successful and decoding of the data channel was unsuccessful, or decoding of the control channel and the data channel was successful.

16. The device according to claim 15, wherein: The one or more communications are a first communication, and the tri-state feedback indicates that decoding of the control channel was unsuccessful, and wherein the one or more processors are further configured to: Based at least in part on the tri-state feedback indicating that decoding of the control channel was unsuccessful, a second communication is sent using a modified control channel configuration relative to the first communication.

17. The device according to claim 16, wherein: The modified control channel configuration is based at least in part on feedback indicating successful decoding of another control channel sent using the modified control channel configuration.

18. The device according to claim 15, wherein: The three-state feedback is based at least in part on the one or more communications being associated with a single transport block.

19. The device according to claim 15, wherein: The three-state feedback is based at least in part on the one or more communications not being configured with a code block group (CBG) based shared channel.

20. The device according to claim 15, wherein: The three-state feedback is based at least in part on the one or more communications comprising a plurality of transport blocks or a plurality of shared channels.

21. The device according to claim 20, wherein: The one or more communications are a first communication, and wherein the one or more processors are further configured to: Based at least in part on the second communication comprising a single transport block or a single shared channel, binary feedback is received, wherein the binary feedback indicates whether decoding of a data channel of the second communication is successful or unsuccessful.

22. The device according to claim 15, wherein: The three-state feedback is based at least in part on a codebook, the codebook being generated at least in part based on a plurality of orthogonal sequences, wherein the codebook is generated at least in part based on a base-3 exponential expression.

23. The device according to claim 15, wherein: The one or more communications are sent over a code block group (CBG) based data channel comprising one or more CBGs, and wherein the three-state feedback comprises: a binary feedback value for each of the one or more CBGs indicating whether decoding of each CBG was successful or unsuccessful, and A feedback value indicating whether decoding of the control channel is successful or unsuccessful, wherein the control channel is associated with the one or more CBGs.

24. A method of wireless communication performed by a first wireless node, comprising: Receiving one or more communications from a second wireless node, wherein the one or more communications include at least one of: a control channel that schedules a data channel, or the control channel and the data channel; and Sending tri-state feedback indicating a result of decoding the one or more communications, wherein the tri-state feedback indicates whether decoding of the control channel was unsuccessful, decoding of the control channel was successful and decoding of the data channel was unsuccessful, or decoding of the control channel and the data channel was successful.

25. The method according to claim 24, further comprising: Sending capability information indicating that the first wireless node supports the three-state feedback; as well as Configuration information indicating provision of the three-state feedback is received.

26. The method according to claim 24, wherein: The three-state feedback is generated at least in part based on a codebook, which is generated at least in part based on a plurality of orthogonal sequences, wherein the codebook is generated at least in part based on a base-3 exponential expression.

27. The method according to claim 24, wherein: The one or more communications are received over a code block group (CBG) based data channel comprising one or more CBGs, and wherein the three-state feedback comprises: a binary feedback value for each of the one or more CBGs indicating whether decoding of each CBG was successful or unsuccessful, and A feedback value indicating whether decoding of the control channel is successful or unsuccessful, wherein the control channel is associated with the one or more CBGs.

28. A method of wireless communication performed by a first wireless node, comprising: sending one or more communications to a second wireless node, wherein the one or more communications include at least one of: a control channel that schedules a data channel, or the control channel and the data channel; and Receive tri-state feedback indicating a result of decoding the one or more communications, wherein the tri-state feedback indicates whether decoding of the control channel was unsuccessful, decoding of the control channel was successful and decoding of the data channel was unsuccessful, or decoding of the control channel and the data channel was successful.

29. The method according to claim 28, wherein: The one or more communications is a first communication, and the tri-state feedback indicates that decoding of the control channel is unsuccessful, and wherein the method further comprises: Based at least in part on the tri-state feedback indicating that decoding of the control channel was unsuccessful, a second communication is sent using a modified control channel configuration relative to the first communication.

30. The method of claim 29, wherein: The modified control channel configuration is based at least in part on feedback indicating successful decoding of another control channel sent using the modified control channel configuration.

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