Priority-based hybrid automatic repeat request acknowledgement (HARQ-ACK) feedback

Abstract

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) can receive downlink data from a base station. The UE can transmit, to the base station, first hybrid automatic repeat request acknowledgement (HARQ-ACK) bits associated with a high priority using a first number of symbols via a physical uplink control channel (PUCCH) format 1 and based at least in part on the downlink data. The UE can transmit, to the base station, second HARQ-ACK bits associated with a low priority using a second number of symbols via the PUCCH format 1 and based at least in part on the downlink data, the second number of symbols being less than the first number of symbols. Numerous other aspects are provided.

Description

[0001] Cross-reference to related applications

[0002] This patent application claims priority to U.S. nonprovisional patent application No. 17 / 112,244, filed December 4, 2020, entitled "PRIORITY-BASED HYBRID AUTOMATIC REPEAT REQUEST ACKNOWLEDGEMENT (HARQ-ACK) FEEDBACK", which is hereby expressly incorporated by reference.

[0003] open field

[0004] Various aspects of this disclosure generally relate to wireless communication, and specifically to techniques and apparatus for priority-based hybrid automatic repeat request acknowledgment (HARQ-ACK) feedback. Background Technology

[0005] Wireless communication systems are widely deployed to provide a variety of telecommunications services such as telephone, video, data, messaging, and broadcasting. Typical wireless communication systems employ multiple access technologies that can support communication with multiple users by sharing available system resources (e.g., bandwidth, transmit power). 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 an enhancement set of the Universal Mobile Telecommunications System (UMTS) mobile standard issued by the 3rd Generation Partnership Project (3GPP).

[0006] A wireless network may include several base stations (BSs) capable of supporting communication between several user equipments (UEs). UEs can communicate with the base stations (BSs) via downlinks and uplinks. A downlink (or forward link) refers to the communication link from the BS to the UE, while an uplink (or reverse link) refers to the communication link from the UE to the BS. As will be described in more detail herein, a BS may be referred to as a B-node, gNB, access point (AP), radio headend, transmit / receive point (TRP), new radio (NR) BS, 5G B-node, etc.

[0007] The multiple access technologies mentioned above have been adopted in various telecommunications standards to provide a common protocol enabling different user equipment to communicate at the city, country, region, and even global levels. New Radio (NR) (also known as 5G) is an enhancement set to the LTE mobile standard issued by the 3rd Generation Partnership Project (3GPP). NR is designed to better support mobile broadband internet access by using Orthogonal Frequency Division Multiplexing (OFDM) with a Cyclic Prefix (CP) (CP-OFDM) on the downlink (DL), and CP-OFDM and / or SC-FDM (e.g., also known as Discrete Fourier Transform Extended OFDM (DFT-s-OFDM)) on the uplink (UL), as well as supporting beamforming, multiple-input multiple-output (MIMO) antenna technologies and carrier aggregation to improve spectral efficiency, reduce costs, improve service, utilize new spectrum, and better integrate with other open standards. Further improvements to LTE, NR, and other radio access technologies remain useful as the demand for mobile broadband access continues to grow.

[0008] Overview

[0009] In some aspects, a wireless communication method performed by a UE includes: receiving downlink data from a base station; transmitting a first HARQ-ACK bit associated with high priority to the base station via a Physical Uplink Control Channel (PUCCH) format 1 and at least partially based on the downlink data using a first number of symbols; and transmitting a second HARQ-ACK bit associated with low priority to the base station via the PUCCH format 1 and at least partially based on the downlink data using a second number of symbols, the second number of symbols being less than the first number of symbols.

[0010] In some aspects, a wireless communication method performed by a base station includes: transmitting downlink data to a UE; receiving a first HARQ-ACK bit associated with high priority from the UE using a first number of symbols via PUCCH format 1 and at least partially based on the downlink data; and receiving a second HARQ-ACK bit associated with low priority from the UE using a second number of symbols via PUCCH format 1 and at least partially based on the downlink data, the second number of symbols being less than the first number of symbols.

[0011] In some aspects, a UE 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 downlink data from a base station; transmit a first HARQ-ACK bit associated with high priority to the base station via PUCCH format 1 and at least partially based on the downlink data using a first number of symbols; and transmit a second HARQ-ACK bit associated with low priority to the base station via PUCCH format 1 and at least partially based on the downlink data using a second number of symbols, the second number of symbols being less than the first number of symbols.

[0012] 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 being configured to: transmit downlink data to a UE; receive a first HARQ-ACK bit associated with high priority from the UE using a first number of symbols via PUCCH format 1 and at least partially based on the downlink data; and receive a second HARQ-ACK bit associated with low priority from the UE using a second number of symbols via PUCCH format 1 and at least partially based on the downlink data, the second number of symbols being less than the first number of symbols.

[0013] In some aspects, a non-transient computer-readable medium storing a set of instructions for wireless communication includes one or more instructions that, when executed by one or more processors of a UE, cause the UE to: receive downlink data from a base station; transmit a first HARQ-ACK bit associated with high priority to the base station using a first number of symbols via PUCCH format 1 and at least partially based on the downlink data; and transmit a second HARQ-ACK bit associated with low priority to the base station using a second number of symbols via PUCCH format 1 and at least partially based on the downlink data, the second number of symbols being less than the first number of symbols.

[0014] In some aspects, a non-transient computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising one or more instructions that, when executed by one or more processors of a base station, cause the base station to: transmit downlink data to a UE; receive a first HARQ-ACK bit associated with high priority from the UE using a first number of symbols via PUCCH format 1 and at least partially based on the downlink data; and receive a second HARQ-ACK bit associated with low priority from the UE using a second number of symbols via PUCCH format 1 and at least partially based on the downlink data, the second number of symbols being less than the first number of symbols.

[0015] In some aspects, an apparatus for wireless communication includes: means for receiving downlink data from a base station; means for transmitting a first HARQ-ACK bit associated with high priority to the base station via PUCCH format 1 and at least partially based on the downlink data using a first number of symbols; and means for transmitting a second HARQ-ACK bit associated with low priority to the base station via PUCCH format 1 and at least partially based on the downlink data using a second number of symbols, the second number of symbols being less than the first number of symbols.

[0016] In some aspects, an apparatus for wireless communication includes: means for transmitting downlink data to a UE; means for receiving a first HARQ-ACK bit associated with high priority from the UE using a first number of symbols via PUCCH format 1 and at least partially based on the downlink data; and means for receiving a second HARQ-ACK bit associated with low priority from the UE using a second number of symbols via PUCCH format 1 and at least partially based on the downlink data, the second number of symbols being less than the first number of symbols.

[0017] The aspects generally include, as substantially described herein with reference to the accompanying drawings and description, methods, apparatus, systems, computer program products, non-transient computer-readable media, user equipment, base stations, wireless communication equipment, and / or processing systems.

[0018] The foregoing has broadly outlined the features and technical advantages of the examples according to this disclosure in an effort to facilitate a better understanding of the following detailed description. Additional features and advantages will be described thereafter. The disclosed concepts and specific examples can be readily used as the basis for modifying or designing other structures for implementing the same purposes as this disclosure. Such equivalent constructions do not depart from the scope of the appended claims. The characteristics of the concepts disclosed herein, in both their organization and manner of operation, and their associated advantages, will be better understood by considering the following description in conjunction with the accompanying drawings. Each drawing is provided for illustrative and descriptive purposes and not for defining limitations on the claims. Brief description of the attached diagram

[0020] To gain a more detailed understanding of the features described above in this disclosure, reference can be made to various aspects of the above brief overview, some of which are illustrated in the accompanying drawings. However, it should be noted that the drawings illustrate only certain typical aspects of this disclosure and should not be considered as limiting its scope, as other equivalent aspects are permissible in this description. Identical reference numerals in different drawings may identify the same or similar elements.

[0021] Figure 1 This is a diagram illustrating examples of wireless networks according to various aspects of this disclosure.

[0022] Figure 2 This is a diagram illustrating an example of communication between a base station and a UE in a wireless network according to various aspects of this disclosure.

[0023] Figure 3 This is a diagram illustrating an example of HARQ-ACK feedback based on various aspects of this disclosure.

[0024] Figure 4-6 This is a diagram illustrating examples of priority-based HARQ-ACK feedback associated with various aspects of this disclosure.

[0025] Figure 7-8 This is a diagram illustrating an example process associated with priority-based HARQ-ACK feedback according to various aspects of this disclosure.

[0026] Figure 9-10 This is a block diagram of an example device for wireless communication according to various aspects of this disclosure.

[0027] Detailed description

[0028] The various aspects of this disclosure are described more fully below with reference to the accompanying drawings. However, this disclosure may be implemented in many different forms and should not be construed as being limited to any specific structure or function given throughout this disclosure. Rather, these aspects are provided so that this disclosure will be thorough and complete, and will fully convey the scope of this disclosure to those skilled in the art. Based on the teachings herein, those skilled in the art will appreciate that the scope of this disclosure is intended to cover any aspect of this disclosure disclosed herein, whether implemented independently of or in combination with any other aspect of this disclosure. For example, any number of aspects set forth herein may be used to implement an apparatus or practice. Furthermore, the scope of this disclosure is intended to cover such apparatuses or methods practiced using additional structures, functionalities, or structures and functionalities that complement or supplement the various aspects of this disclosure set forth herein. It should be understood that any aspect of this disclosure disclosed herein may be implemented by one or more elements of the claims.

[0029] Several aspects of a telecommunications system will now be described with reference to various devices and techniques. These devices and techniques will be described in the following detailed description and explained in the accompanying drawings by various blocks, modules, components, circuits, steps, processes, algorithms, etc. (collectively, "elements"). These elements can 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.

[0030] It should be noted that although the aspects herein may be described using terms commonly associated with 5G or NR radio access technology (RAT), the aspects of this disclosure may be applied to other RATs, such as 3G RAT, 4G RAT, and / or RATs after 5G (e.g., 6G).

[0031] Figure 1 This is a diagram illustrating an example of a wireless network 100 according to various aspects of this disclosure. The wireless network 100 may be a 5G (NR) network and / or an LTE network, etc., or may include elements thereof. The wireless network 100 may include several 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, B-node, gNB, 5G B-node (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 the coverage area of ​​a BS and / or the BS subsystem serving that coverage area, depending on the context in which the term is used.

[0032] A BS can provide communication coverage for macrocells, picocells, femtocells, and / or another type of cell. Macrocells can cover a relatively large geographic area (e.g., a radius of several kilometers) and allow unrestricted access by UEs with a service subscription. Picocells can cover a relatively small geographic area and allow unrestricted access by UEs with a service subscription. Femtocells can cover a relatively small geographic area (e.g., a residential area) and allow restricted access by UEs associated with that femtocell (e.g., UEs in a Closed Subscriber Group (CSG)). A BS used for macrocells may be referred to as a macro BS. A BS used for picocells may be referred to as a pico BS. A BS used for femtocells may be referred to as a femto BS or a home BS. Figure 1 In the example shown, BS 110a can be a macro BS for macro cell 102a, BS 110b can be a pico BS for pico cell 102b, and BS 110c can be a femto BS for femto cell 102c. A BS can support one or more (e.g., three) cells. The terms “eNB,” “base station,” “NR BS,” “gNB,” “TRP,” “AP,” “B node,” “5G NB,” and “cell” are used interchangeably herein.

[0033] In some respects, the cell may not be stationary, and the geographical area of ​​the cell may move depending on the location of the mobile BS. In some respects, BSs may interconnect with each other and / or interconnect to one or more other BSs or network nodes (not shown) in the wireless network 100 via various types of backhaul interfaces (such as direct physical connections or virtual networks, using any suitable transport network).

[0034] The wireless network 100 may also include a relay station. A relay station is an entity capable of receiving data transmissions from an upstream station (e.g., a BS or a UE) and transmitting those data transmissions to a downstream station (e.g., a UE or a BS). A relay station may also be a UE capable of relaying transmissions for other UEs. Figure 1 In the example shown, relay BS 110d can communicate with macro BS 110a and UE 120d to facilitate communication between BS 110a and UE 120d. A relay BS can also be referred to as a relay station, relay base station, relay, etc.

[0035] Wireless network 100 can be a heterogeneous network comprising different types of Base Stations (BSs) such as macro BSs, pico BSs, femto BSs, relay BSs, etc. These different types of BSs may have different transmit power levels, different coverage areas, and different effects on interference in wireless network 100. For example, macro BSs may have high transmit power levels (e.g., 5 to 40 watts), while pico BSs, femto BSs, and relay BSs may have lower transmit power levels (e.g., 0.1 to 2 watts).

[0036] Network controller 130 can be coupled to a set of Base Stations (BSs) and can provide coordination and control over these BSs. Network controller 130 can communicate with each BS via backhaul. These BSs can also communicate with each other directly or indirectly via wireless or wired backhaul.

[0037] UE 120 (e.g., 120a, 120b, 120c) may be distributed throughout the wireless network 100, and each UE may be stationary or mobile. UE may also be referred to as an access terminal, terminal, mobile station, subscriber unit, station, etc. UE may be a cellular phone (e.g., a smartphone), personal digital assistant (PDA), wireless modem, wireless communication device, handheld device, laptop computer, cordless phone, wireless local loop (WLL) station, tablet, camera, gaming device, netbook, smartbook, ultrabook, medical device or equipment, biometric sensor / device, wearable device (smartwatch, smart clothing, smart glasses, smart wristband, smart jewelry (e.g., smart ring, smart bracelet)), entertainment device (e.g., music or video device, or satellite radio), vehicle component or sensor, smart meter / sensor, industrial manufacturing equipment, GPS device, or any other suitable device configured to communicate via wireless or wired media.

[0038] Some UEs may be considered machine-type communication (MTC) devices or evolved or enhanced machine-type communication (eMTC) UEs. MTC and eMTC UEs include, for example, robots, drones, remote devices, sensors, instruments, monitors, and / or location tags that can communicate with a base station, another device (e.g., a remote device), or some other entity. Wireless nodes may provide connectivity to or to a network (e.g., a wide area network, such as the Internet or a cellular network) via wired or wireless communication links, for example. Some UEs may be considered Internet of Things (IoT) devices and / or may be implemented as NB-IoT (Narrowband Internet of Things) devices. Some UEs may be considered client equipment (CPE). UE 120 may be included within a housing that houses components of UE 120, such as processor components and / or memory components. In some aspects, the processor components and memory components may be coupled together. For example, the processor components (e.g., one or more processors) and memory components (e.g., memory) may be operatively coupled, communicatively coupled, electronically coupled, and / or electrically coupled.

[0039] Generally, any number of wireless networks can be deployed in a given geographical area. Each wireless network can support a specific RAT and can operate on one or more frequencies. A RAT can also be referred to as a radio technology, air interface, etc. A frequency can also be referred to as a carrier, frequency channel, etc. Each frequency can support a single RAT in a given geographical area to avoid interference between wireless networks using different RATs. In some cases, NR or 5G RAT networks can be deployed.

[0040] In some respects, 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). For example, UEs 120 may communicate using peer-to-peer (P2P) communication, device-to-device (D2D) communication, vehicle-to-everything (V2X) protocols (e.g., which may include vehicle-to-vehicle (V2V) protocols or vehicle-to-infrastructure (V2I) protocols), and / or mesh networks. In this scenario, UEs 120 may perform scheduling operations, resource selection operations, and / or other operations described elsewhere herein as performed by base station 110.

[0041] Devices in the wireless network 100 can communicate using the electromagnetic spectrum, which can be subdivided into various categories, bands, channels, etc., based on frequency or wavelength. For example, devices in the wireless network 100 can communicate using an operating band with a first frequency range (FR1) and / or an operating band with a second frequency range (FR2), where the first frequency range (FR1) spans from 410 MHz to 7.125 GHz and the second frequency range (FR2) spans from 24.25 GHz to 52.6 GHz. The frequencies between FR1 and FR2 are sometimes referred to as intermediate frequency bands. Although a portion of FR1 is greater than 6 GHz, FR1 is often referred to as the "sub-6 GHz" band. Similarly, although different from the extremely high frequency (EHF) band (30 GHz–300 GHz) designated as the "millimeter wave" band by the International Telecommunication Union (ITU), FR2 is often referred to as the "millimeter wave" band. Therefore, unless otherwise stated, it should be understood that, if used herein, the terms "sub-6 GHz" and the like can broadly refer to frequencies less than 6 GHz, frequencies within FR1, and / or intermediate frequency band frequencies (e.g., greater than 7.125 GHz). Similarly, unless otherwise stated, it should be understood that, if used herein, the terms "millimeter wave" and the like can broadly refer to frequencies within the EHF band, frequencies within FR2, and / or intermediate frequency band frequencies (e.g., less than 24.25 GHz). It is conceivable that the frequencies included in FR1 and FR2 can be modified, and the techniques described herein are applicable to those modified frequency ranges.

[0042] As indicated above, Figure 1 This is provided as an example. Other examples may differ from the one provided. Figure 1 The example described.

[0043] Figure 2This is a diagram illustrating an example 200 of communication between a base station 110 and a UE 120 in a wireless network 100 according to various aspects of this disclosure. The base station 110 may be equipped with T antennas 234a to 234t, and the UE 120 may be equipped with R antennas 252a to 252r, wherein generally T≥1 and R≥1.

[0044] At base station 110, transmit processor 220 can receive data destined for one or more UEs from data source 212, select one or more modulation and coding schemes (MCS) for each UE based at least in part on channel quality indicators (CQI) received from each UE, process (e.g., encode and modulate) the data for each UE based at least in part on the MCS selected for each UE, and provide data symbols for all UEs. Transmit processor 220 can also process system information (e.g., semi-static resource allocation information (SRPI)) and control information (e.g., CQI requests, grants, and / or upper-layer signaling), and provide overhead symbols and control symbols. Transmit processor 220 can 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 signal (PSS) or secondary synchronization signal (SSS)). The transmit (TX) multiple-input multiple-output (MIMO) processor 230 can perform spatial processing (e.g., precoding) on ​​data symbols, control symbols, overhead symbols, and / or reference symbols, where applicable, and can provide T output symbol streams to T modulators (MODs) 232a to 232t. Each modulator 232 can process its respective output symbol stream (e.g., for OFDM) to obtain an output sample stream. Each modulator 232 can further process (e.g., convert to analog, amplify, filter, and up-convert) the output sample stream to obtain a downlink signal. The T downlink signals from modulators 232a to 232t can be transmitted via T antennas 234a to 234t, respectively.

[0045] At UE 120, antennas 252a to 252r can receive downlink signals from base station 110 and / or other base stations and can provide the received signals to demodulators (DEMODs) 254a to 254r respectively. Each demodulator 254 can condition (e.g., filter, amplify, downconvert, and digitize) the received signal to obtain an input sample. Each demodulator 254 can further process the input sample (e.g., for OFDM) to obtain received symbols. MIMO detector 256 can obtain the received symbols from all R demodulators 254a to 254r, perform MIMO detection on these received symbols where applicable, and provide detected symbols. Receiver processor 258 can process (e.g., demodulate and decode) these detected symbols, provide decoded data for UE 120 to data sink 260, and provide decoded control information and system information to controller / processor 280. The term "controller / processor" can refer to one or more controllers, one or more processors, or a combination thereof. The channel processor can determine parameters such as Reference Signal Received Power (RSRP), Received Signal Strength Indicator (RSSI), Reference Signal Received Quality (RSRQ), and / or Channel Quality Indicator (CQI). In some respects, one or more components of the UE 120 may be included in the housing 284.

[0046] Network controller 130 may include communication unit 294, controller / processor 290, and memory 292. Network controller 130 may include one or more devices, such as those in a core network. Network controller 130 may communicate with base station 110 via communication unit 294.

[0047] Antennas (e.g., antennas 234a to 234t and / or antennas 252a to 252r) may include, or be included therein, one or more antenna panels, antenna groups, antenna element sets, and / or antenna arrays. 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 multiple antenna elements within housings. Antenna panels, antenna groups, antenna element sets, and / or antenna arrays may include elements coupled to one or more transmission and / or reception components (such as...). Figure 2 One or more antenna elements (one or more components).

[0048] On the uplink, at UE 120, transmit processor 264 can receive and process data from data source 262 and control information from controller / processor 280 (e.g., reports including RSRP, RSSI, RSRQ, and / or CQI). Transmit processor 264 can also generate reference symbols for one or more reference signals. Symbols from transmit processor 264 can be pre-encoded by TX MIMO processor 266 where applicable, further processed by modulators 254a to 254r (e.g., for DFT-s-OFDM or CP-OFDM), and transmitted to base station 110. In some aspects, modulators and demodulators (e.g., MOD / DEMOD 254) of UE 120 can be included in the modem of UE 120. In some aspects, UE 120 includes a transceiver. The transceiver may include any combination of antennas 252, modulators and / or demodulators 254, MIMO detectors 256, receiver processors 258, transmitter 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, for example, as referenced. Figure 4-8 As described.

[0049] At base station 110, uplink signals from UE 120 and other UEs can be received by antenna 234, processed by demodulator 232, detected by MIMO detector 236 where applicable, and further processed by receiver processor 238 to obtain decoded data and control information transmitted by UE 120. Receiver processor 238 can provide the decoded data to data sink 239 and the decoded control information to controller / processor 240. Base station 110 may include communication unit 244 and communicate with network controller 130 via communication unit 244. Base station 110 may include scheduler 246 to schedule downlink and / or uplink communications of UE 120. In some aspects, the modulator and demodulator (e.g., MOD / DEMOD 232) of base station 110 may be included in the modem of base station 110. In some aspects, base station 110 includes transceiver. The transceiver may include any combination of antennas 234, modulators and / or demodulators 232, MIMO detectors 236, receiver processors 238, transmitter 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 referenced. Figure 4-8 As described.

[0050] The controller / processor 240 of base station 110, the controller / processor 280 of UE 120, and / or Figure 2 Any other component may perform one or more techniques associated with priority-based HARQ-ACK feedback, as described in more detail elsewhere herein. For example, the controller / processor 240 of base station 110, the controller / processor 280 of UE 120, and / or Figure 2 Any other component may execute or direct, for example Figure 7 Process 700 Figure 8 The operation of process 800 and / or other processes as described herein. Memory 242 and 282 may store data and program code 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 executed, or executed after compilation, transformation, and / or interpretation), may cause the one or more processors, UE 120, and / or base station 110 to perform or direct, for example... Figure 7 Process 700 Figure 8 The operation of process 800, and / or other processes described herein. In some respects, the execution instructions may include run instructions, translate instructions, compile instructions, and / or interpret instructions, etc.

[0051] In some aspects, the UE (e.g., UE 120) includes: means for receiving downlink data from a base station; means for transmitting a first HARQ-ACK bit associated with high priority to the base station using a first number of symbols via PUCCH format 1 and at least partially based on the downlink data; and / or means for transmitting a second HARQ-ACK bit associated with low priority to the base station using a second number of symbols via PUCCH format 1 and at least partially based on the downlink data, the second number of symbols being less than the first number of symbols. Means for the UE to perform the operations described herein may include, for example, one or more of antenna 252, demodulator 254, MIMO detector 256, receiver processor 258, transmitter processor 264, TX MIMO processor 266, modulator 254, controller / processor 280, or memory 282.

[0052] In some aspects, the UE includes: means for transmitting HARQ-ACK feedback via PUCCH format 1, at least in part based on time-division multiplexing of the first HARQ-ACK bit and the second HARQ-ACK bit.

[0053] In some aspects, the UE includes: means for transmitting a repetition of a first HARQ-ACK bit using a first number of symbols; and / or means for transmitting a repetition of a second HARQ-ACK bit using a second number of symbols, wherein the number of repetitions of the first HARQ-ACK bit is greater than the number of repetitions of the second HARQ-ACK bit, so as to increase the reliability of the first HARQ-ACK bit relative to the second HARQ-ACK bit.

[0054] In some aspects, the UE includes: means for receiving, via radio resource control messages, parameters defining one or more of a first number of symbols and a second number of symbols from the base station.

[0055] In some aspects, the UE includes: means for receiving, via downlink control information, parameters defining one or more of a first number of symbols and a second number of symbols from the base station.

[0056] In some aspects, the UE includes: means for transmitting the first HARQ-ACK bit earlier in time than the second HARQ-ACK bit, and the first number of symbols appear earlier in time than the second number of symbols.

[0057] In some aspects, the UE includes: means for transmitting, via the PUCCH format 1 and at least in part based on the downlink data, both a first HARQ-ACK bit associated with high priority and a second HARQ-ACK bit associated with low priority to the base station using a second number of symbols.

[0058] In some aspects, the UE includes: means for transmitting a first HARQ-ACK bit using a first number of symbols associated with a first frequency band; means for transmitting the first HARQ-ACK bit using a third number of symbols associated with a second frequency band; means for transmitting a second HARQ-ACK bit using a second number of symbols associated with the first frequency band; and / or means for transmitting the second HARQ-ACK bit using a fourth number of symbols associated with the second frequency band, wherein the fourth number of symbols is less than the third number of symbols.

[0059] In some aspects, the UE includes: means for transmitting a first HARQ-ACK bit using a first number of symbols associated with a first frequency band; means for transmitting the first HARQ-ACK bit using a third number of symbols and a fourth number of symbols, wherein the third number of symbols and the fourth number of symbols are associated with a second frequency band, and wherein the fourth number of symbols is less than the third number of symbols; and / or means for transmitting a second HARQ-ACK bit using a second number of symbols associated with the first frequency band and a fourth number of symbols associated with the second frequency band.

[0060] In some aspects, a base station (e.g., base station 110) may include: means for transmitting downlink data to a UE; means for receiving a first HARQ-ACK bit associated with high priority from the UE using a first number of symbols via PUCCH format 1 and at least partially based on the downlink data; and / or means for receiving a second HARQ-ACK bit associated with low priority from the UE using a second number of symbols via PUCCH format 1 and at least partially based on the downlink data, the second number of symbols being less than the first number of symbols. Means for the base station to perform the operations described herein may include, for example, one or more of a transmit processor 220, a TX MIMO processor 230, a modulator 232, an antenna 234, a demodulator 232, a MIMO detector 236, a receive processor 238, a controller / processor 240, a memory 242, or a scheduler 246.

[0061] In some aspects, the base station includes: means for receiving HARQ-ACK feedback via PUCCH format 1, at least in part based on time-division multiplexing of the first HARQ-ACK bit and the second HARQ-ACK bit.

[0062] In some aspects, the base station includes: means for receiving repetitions of a first HARQ-ACK bit using a first number of symbols; and / or means for receiving repetitions of a second HARQ-ACK bit using a second number of symbols, wherein the number of repetitions of the first HARQ-ACK bit is greater than the number of repetitions of the second HARQ-ACK bit, so as to increase the reliability of the first HARQ-ACK bit relative to the second HARQ-ACK bit.

[0063] In some aspects, the base station includes: means for transmitting to the UE via radio resource control messages a parameter defining one or more of a first number of symbols and a second number of symbols.

[0064] In some aspects, the base station includes: means for transmitting to the UE via downlink control information one or more of a first number of symbols and a second number of symbols.

[0065] In some aspects, the base station includes: means for receiving the first HARQ-ACK bit earlier in time than the second HARQ-ACK bit, and the first number of symbols appear earlier in time than the second number of symbols.

[0066] In some aspects, the base station includes: means for receiving, via the PUCCH format 1 and at least in part based on the downlink data, both a first HARQ-ACK bit associated with high priority and a second HARQ-ACK bit associated with low priority from the UE.

[0067] In some aspects, the base station includes: means for receiving a first HARQ-ACK bit using a first number of symbols associated with a first frequency band; means for receiving the first HARQ-ACK bit using a third number of symbols associated with a second frequency band; means for receiving a second HARQ-ACK bit using a second number of symbols associated with the first frequency band; and / or means for receiving the second HARQ-ACK bit using a fourth number of symbols associated with the second frequency band, wherein the fourth number of symbols is less than the third number of symbols.

[0068] In some aspects, the base station includes: means for receiving a first HARQ-ACK bit using a first number of symbols and for receiving the first HARQ-ACK bit using a second number of symbols, wherein the first number of symbols and the second number of symbols are associated with a first frequency band; means for receiving the first HARQ-ACK bit using a third number of symbols and for receiving the first HARQ-ACK bit using a fourth number of symbols, wherein the third number of symbols and the fourth number of symbols are associated with a second frequency band, and wherein the fourth number of symbols is less than the third number of symbols; and / or means for receiving a second HARQ-ACK bit using a second number of symbols associated with the first frequency band and for receiving the second HARQ-ACK bit using a fourth number of symbols associated with the second frequency band.

[0069] Although Figure 2 The boxes in the diagram are interpreted as different components, but the functions described above with respect to these boxes can be implemented using a single hardware component, software component, or combination of components. For example, the functions described with respect to transmit processor 264, receive processor 258, and / or TX MIMO processor 266 can be performed by controller / processor 280 or under the control of controller / processor 280.

[0070] As indicated above, Figure 2 This is provided as an example. Other examples may differ from the one provided. Figure 2 The example described.

[0071] Figure 3 This is a diagram illustrating example 300 of HARQ-ACK feedback based on various aspects of this disclosure.

[0072] like Figure 3 As shown, the UE can transmit a payload carrying uplink control information (UCI) to the base station via PUCCH format 1. This UCI can be a HARQ-ACK feedback. The payload can include one or two HARQ-ACK bits. The payload can range from 4 to 14 symbols (e.g., OFDM symbols). The UE can transmit a payload for a given cell-specific sequence (e.g., a sequence of 12 symbols). The UE can transmit this sequence as DMRS on even-numbered symbols (e.g., N symbols). The UE can transmit a sequence modulated by the payload on odd-numbered symbols. In other words, the odd-numbered symbols can correspond to a UCI (such as a HARQ-ACK feedback), which can include one or two HARQ-ACK bits.

[0073] When the payload is one bit, the UE can use binary phase shift keying (BPSK) modulation. With a one-bit payload, the generated waveforms for the two assumptions {0} and {1} are orthogonal. When the payload is two bits, the UE can use quadrature phase shift keying (QPSK) modulation. With a two-bit payload, the generated waveforms for the four assumptions {0,0}, {0,1}, {1,0}, and {1,1} are not orthogonal.

[0074] As indicated above, Figure 3 This is provided as an example. Other examples may differ from the one provided. Figure 3 The example described.

[0075] The UE can use PUCCH format 1 to transmit HARQ-ACK feedback to the base station, including one or two HARQ-ACK bits with the same priority. For example, the UE can use PUCCH format 1 to transmit a payload containing HARQ-ACK feedback. This payload can be associated with odd-numbered bits among a plurality of symbols. When the payload includes two HARQ-ACK bits, the first HARQ-ACK bit can have the same reliability as the second HARQ-ACK bit because the entire payload can be associated with odd-numbered bits among the plurality of symbols. In other words, both HARQ-ACK bits can be modulated on each of the odd-numbered bits such that the first HARQ-ACK bit is not different from the second HARQ-ACK bit in terms of reliability and / or latency. However, this method is not suitable for HARQ-ACK feedback carrying two HARQ-ACK bits with unequal priorities. The HARQ-ACK feedback may include a first HARQ-ACK bit associated with a higher priority and a second HARQ-ACK bit associated with a lower priority. If the entire payload (e.g., two HARQ-ACK bits with unequal priorities) is associated with each odd symbol in a plurality of symbols, the first HARQ-ACK bit associated with the higher priority may inappropriately have the same priority as the second HARQ-ACK bit associated with the lower priority. In other words, the first HARQ-ACK bit associated with the higher priority will not actually have a higher priority than the second HARQ-ACK bit associated with the lower priority.

[0076] In various aspects of the technologies and apparatus described herein, the UE may use a first number of symbols via PUCCH format 1 to transmit a first HARQ-ACK bit associated with high priority to the base station. The UE may use a second number of symbols via PUCCH format 1 to transmit a second HARQ-ACK bit associated with low priority to the base station, the second number being less than the first number of symbols. In some aspects, the UE may transmit the first HARQ-ACK bit and the second HARQ-ACK bit based at least in part on time-division multiplexing of the first HARQ-ACK bit and the second HARQ-ACK bit.

[0077] In various aspects of the techniques and apparatus described herein, the UE can transmit a first HARQ-ACK bit by transmitting repetitions of a first HARQ-ACK bit using a first number of symbols, and the UE can transmit a second HARQ-ACK bit by transmitting repetitions of a second HARQ-ACK bit using a second number of symbols. The number of repetitions of the first HARQ-ACK bit can be greater than the number of repetitions of the second HARQ-ACK bit to increase the reliability of the first HARQ-ACK bit relative to the second HARQ-ACK bit.

[0078] In various aspects of the technologies and apparatus described herein, the UE can receive parameters defining a first number of symbols and / or a second number of symbols from the base station via Radio Resource Control (RRC) messages or Downlink Control Information (DCI). In some aspects, the UE can transmit the first HARQ-ACK bit earlier in time than the second HARQ-ACK bit, and the first number of symbols can appear earlier in time than the second number of symbols, which reduces the waiting time of the first HARQ-ACK bit relative to the second HARQ-ACK bit.

[0079] Figure 4 This is a diagram illustrating example 400 associated with priority-based HARQ-ACK feedback according to various aspects of this disclosure.

[0080] A UE (e.g., UE 120) may transmit HARQ-ACK feedback to a base station (e.g., base station 110) via PUCCH format 1. The HARQ-ACK feedback may include two HARQ-ACK bits. These two HARQ-ACK bits may include a first HARQ-ACK bit associated with high priority (HP) and a second HARQ-ACK bit associated with low priority (LP). The UE may transmit the first HARQ-ACK bit and the second HARQ-ACK bit by time-division multiplexing, which may result in unequal reliability and / or latency between the first and second HARQ-ACK bits.

[0081] like Figure 4As shown therein, the UE may transmit HARQ-ACK feedback via PUCCH format 1 using N symbols, wherein L symbols of the N symbols (L<N) may be associated with a first HARQ-ACK bit (b1), and N-L symbols may be associated with a second HARQ-ACK bit (b2). The L symbols may correspond to a first number of symbols, and the N-L symbols may correspond to a second number of symbols. The UE may transmit HARQ-ACK feedback for a given cell-specific sequence (e.g., a sequence with a length of 12 symbols). The UE may transmit the sequence as DMRS on even symbols among the L symbols. The UE may transmit the sequence modulated by the first HARQ-ACK bit on odd symbols among the L symbols. In other words, the odd symbols among the L symbols may correspond to the first HARQ-ACK bit. The UE may transmit the sequence as DMRS on even symbols among the N-L symbols. The UE may transmit the sequence modulated by the second HARQ-ACK bit on odd symbols among the N-L symbols. In other words, the odd symbols among the N-L symbols may correspond to the second HARQ-ACK bit.

[0082] In some aspects, the UE may use L symbols to transmit repetitions of the first HARQ-ACK bit, and the UE may use N-L symbols to transmit repetitions of the second HARQ-ACK bit. The number of repetitions of the first HARQ-ACK bit may be greater than the number of repetitions of the second HARQ-ACK bit, so as to increase the reliability of the first HARQ-ACK bit relative to the second HARQ-ACK bit. In other words, the first HARQ-ACK bit may be repeated more times than the second HARQ-ACK bit, which may increase the reliability of the first HARQ-ACK bit relative to the second HARQ-ACK bit. Since the first HARQ-ACK bit is associated with a high priority and the second HARQ-ACK bit is associated with a low priority, a base station may benefit from receiving more repetitions of the first HARQ-ACK bit compared to the second HARQ-ACK bit.

[0083] In some respects, the UE can transmit the first HARQ-ACK bit earlier in time than the second HARQ-ACK bit because the L symbols appear earlier in time than the NL symbols. As a result, the waiting time associated with the first HARQ-ACK bit may differ from the waiting time associated with the second HARQ-ACK bit, because the base station can receive and decode the first HARQ-ACK bit earlier in time than the second HARQ-ACK bit. Since the first HARQ-ACK bit is associated with high priority and the second HARQ-ACK bit is associated with low priority, the base station can benefit from receiving the first HARQ-ACK bit before the second HARQ-ACK bit.

[0084] In some aspects, the UE may receive parameters from the base station defining a first number of symbols (L) and / or a second number of symbols (NL). The UE may receive these parameters from the base station via an RRC message or a DCI. In some aspects, the base station may adjust L and / or NL to balance the reliability of receiving the first HARQ-ACK bit earlier than the second HARQ-ACK bit in time with the reliability of increasing the reliability of the first HARQ-ACK bit relative to the second HARQ-ACK bit.

[0085] In some aspects, the UE may use PUCCH format 1 to transmit the first HARQ-ACK bit and also use PUCCH format 1 to transmit the second HARQ-ACK bit. In other aspects, the UE may use PUCCH format 1 to transmit the first HARQ-ACK bit and PUCCH format 0 to transmit the second HARQ-ACK bit. For example, when NL (the number of symbols associated with the second HARQ-ACK bit) is two, the UE may use PUCCH format 0 to transmit the second HARQ-ACK bit, or the UE may use a special PUCCH format 1 with two symbols to transmit the second HARQ-ACK bit. As another example, when NL is one, the UE may use PUCCH format 0 to transmit the second HARQ-ACK bit.

[0086] In some respects, for the two HARQ-ACK bits, the waveforms generated for the four assumptions {0,0}, {0,1}, {1,0}, and {1,1} are orthogonal because the two assumptions {0} and {1} for each of the first and second HARQ-ACK bits are orthogonal. In other words, the waveforms generated for the two assumptions {0} and {1} associated with the first HARQ-ACK bit are orthogonal, and the waveforms generated for the two assumptions {0} and {1} associated with the second HARQ-ACK bit are orthogonal. Thus, within the first HARQ-ACK bit associated with higher priority and the second HARQ-ACK bit associated with lower priority, these two assumptions are orthogonal, which can lead to performance gains at the UE and / or base station.

[0087] As indicated above, Figure 4 This is provided as an example. Other examples may differ from the one provided. Figure 4 The example described.

[0088] Figure 5 This is a diagram illustrating example 500 associated with priority-based HARQ-ACK feedback according to various aspects of this disclosure.

[0089] like Figure 5 As shown, the UE can use a first number of symbols (L symbols) via PUCCH format 1 to transmit a first HARQ-ACK bit associated with high priority to the base station. The UE can use a second number of symbols (NL symbols) via PUCCH format 1 to transmit both the first HARQ-ACK bit associated with high priority and a second HARQ-ACK bit associated with low priority to the base station. The first HARQ-ACK bit transmitted using the first number of symbols can be a single bit. The first HARQ-ACK bit transmitted using the second number of symbols can be a single bit, and the second HARQ-ACK bit transmitted using the second number of symbols can also be a single bit.

[0090] In some respects, the UE can transmit the first HARQ-ACK bit and the second HARQ-ACK bit via PUCCH format 1, such that the first HARQ-ACK bit may have unequal reliability and / or latency compared to the second HARQ-ACK bit. For example, the UE can transmit the first HARQ-ACK bit earlier than the second HARQ-ACK bit in time, thereby reducing the latency of the first HARQ-ACK bit relative to the second HARQ-ACK bit. As another example, the UE can repeat the first HARQ-ACK bit using both a first number of symbols and a second number of symbols, while the second HARQ-ACK bit can be transmitted using a second number of symbols, which can increase the reliability of the first HARQ-ACK bit relative to the second HARQ-ACK bit.

[0091] As indicated above, Figure 5 This is provided as an example. Other examples may differ from the one provided. Figure 5 The example described.

[0092] Figure 6 This is a diagram illustrating example 600 associated with priority-based HARQ-ACK feedback according to various aspects of this disclosure.

[0093] In some respects, the UE can use frequency hopping via PUCCH format 1 to transmit a first HARQ-ACK bit associated with high priority and a second HARQ-ACK bit associated with low priority to the base station.

[0094] As shown by reference numeral 602 in the accompanying drawing, the UE can use a first number of symbols associated with the first frequency band to transmit the first HARQ-ACK bit. The UE can use a second number of symbols associated with the first frequency band to transmit the second HARQ-ACK bit. Furthermore, the UE can use a third number of symbols associated with the second frequency band to transmit the first HARQ-ACK bit. The UE can use a fourth number of symbols associated with the second frequency band to transmit the second HARQ-ACK bit. In some aspects, the second number of symbols may be less than the first number of symbols, and the fourth number of symbols may be less than the third number of symbols.

[0095] As shown by reference numeral 604 in the attached figure, the UE can use a first number of symbols to transmit the first HARQ-ACK. The UE can use a second number of symbols to transmit the first HARQ-ACK bit and the second HARQ-ACK bit. The first number of symbols and the second number of symbols can be associated with a first frequency band. Furthermore, the UE can use a third number of symbols to transmit the first HARQ-ACK bit. The UE can use a fourth number of symbols to transmit the first HARQ-ACK bit and the second HARQ-ACK bit. The third number of symbols and the fourth number of symbols can be associated with a second frequency band. In some aspects, the second number of symbols can be less than the first number of symbols, and the fourth number of symbols can be less than the third number of symbols.

[0096] As indicated above, Figure 6 This is provided as an example. Other examples may differ from the one provided. Figure 6 The example described.

[0097] Figure 7 This is a diagram illustrating, for example, an example procedure 700 performed by a UE according to various aspects of this disclosure. Example procedure 700 is an example in which a UE (e.g., UE 120) performs operations associated with priority-based HARQ-ACK feedback.

[0098] like Figure 7 As shown, in some aspects, process 700 may include: receiving downlink data from a base station (block 710). For example, a UE (e.g., using...) Figure 9 The receiving component 902 described herein can receive downlink data from the base station, as described above.

[0099] As in Figure 7 As further illustrated, in some aspects, process 700 may include: transmitting a first HARQ-ACK bit associated with high priority to the base station using a first number of symbols via PUCCH format 1 and at least partially based on the downlink data (box 720). For example, the UE (e.g., using...) Figure 9 The transmission component 904 described herein may use a first number of symbols via PUCCH format 1 and at least in part based on the downlink data to transmit a first HARQ-ACK bit associated with high priority to the base station, as described above.

[0100] As in Figure 7 As further illustrated, in some aspects, process 700 may include: transmitting a second HARQ-ACK bit associated with a low priority to the base station using a second number of symbols via the PUCCH format 1 and at least partially based on the downlink data, the second number of symbols being less than the first number of symbols (box 730). For example, the UE (e.g., using...) Figure 9 The transmission component 904 described herein may use a second number of symbols to transmit a second HARQ-ACK bit associated with a low priority to the base station via the PUCCH format 1 and at least in part based on the downlink data, the second number of symbols being less than the first number of symbols, as described above.

[0101] Process 700 may include additional aspects, such as any single aspect or any combination of aspects described below and / or in conjunction with one or more other processes described elsewhere herein.

[0102] In a first aspect, transmitting the first HARQ-ACK bit and transmitting the second HARQ-ACK bit includes transmitting the HARQ-ACK feedback via PUCCH format 1, at least in part based on time-division multiplexing of the first HARQ-ACK bit and the second HARQ-ACK bit.

[0103] In a second aspect, either alone or in combination with the first aspect, transmitting the first HARQ-ACK bit includes: transmitting a repetition of the first HARQ-ACK bit using a first number of symbols, and transmitting the second HARQ-ACK bit includes: transmitting a repetition of the second HARQ-ACK bit using a second number of symbols, wherein the number of repetitions of the first HARQ-ACK bit is greater than the number of repetitions of the second HARQ-ACK bit, so as to increase the reliability of the first HARQ-ACK bit relative to the second HARQ-ACK bit.

[0104] In a third aspect, either alone or in combination with one or more of the first and second aspects, process 700 includes: receiving parameters from the base station via a radio resource control message, defining one or more of a first number of symbols and a second number of symbols.

[0105] In the fourth aspect, either alone or in combination with one or more of the first to third aspects, process 700 includes: receiving parameters from the base station via downlink control information, one or more of a first number of symbols and a second number of symbols.

[0106] In the fifth aspect, transmitting the first HARQ-ACK bit and transmitting the second HARQ-ACK bit, either alone or in combination with one or more of the first to fourth aspects, includes transmitting the first HARQ-ACK bit earlier in time than the second HARQ-ACK bit, and the first number of symbols appearing earlier in time than the second number of symbols.

[0107] In the sixth aspect, either alone or in combination with one or more of the first to fifth aspects, process 700 includes: transmitting, via the PUCCH format 1 and at least in part based on the downlink data, a first HARQ-ACK bit associated with high priority and a second HARQ-ACK bit associated with low priority to the base station using a second number of symbols.

[0108] In the seventh aspect, transmitting the first HARQ-ACK bit, either alone or in combination with one or more of the first to sixth aspects, comprises: transmitting the first HARQ-ACK bit using a first number of symbols associated with a first frequency band, and transmitting the first HARQ-ACK bit using a third number of symbols associated with a second frequency band; and transmitting the second HARQ-ACK bit comprises: transmitting the second HARQ-ACK bit using a second number of symbols associated with the first frequency band, and transmitting the second HARQ-ACK bit using a fourth number of symbols associated with the second frequency band, wherein the fourth number of symbols is less than the third number of symbols.

[0109] In the eighth aspect, transmitting the first HARQ-ACK bit, either alone or in combination with one or more of the first to seventh aspects, comprises: transmitting the first HARQ-ACK bit using a first number of symbols and transmitting the first HARQ-ACK bit using a second number of symbols, wherein the first number of symbols and the second number of symbols are associated with a first frequency band; transmitting the first HARQ-ACK bit using a third number of symbols and transmitting the first HARQ-ACK bit using a fourth number of symbols, wherein the third number of symbols and the fourth number of symbols are associated with a second frequency band, and wherein the fourth number of symbols is less than the third number of symbols; and transmitting the second HARQ-ACK bit comprises: transmitting the second HARQ-ACK bit using a second number of symbols associated with the first frequency band and transmitting the second HARQ-ACK bit using a fourth number of symbols associated with the second frequency band.

[0110] although Figure 7 An example box of process 700 is shown, but in some respects, process 700 may include... Figure 7 The boxes depicted in the process are compared to additional boxes, fewer boxes, different boxes, or boxes arranged differently. Additionally or alternatively, two or more boxes in process 700 can be executed in parallel.

[0111] Figure 8 This is a diagram illustrating, for example, an example process 800 performed by a base station according to various aspects of this disclosure. Example process 800 is an example in which a base station (e.g., base station 110) performs operations associated with priority-based HARQ-ACK feedback.

[0112] like Figure 8 As shown, in some aspects, process 800 may include: transmitting downlink data to the UE (block 810). For example, the base station (e.g., using...) Figure 10 The transmission component 1004 described herein can transmit downlink data to the UE, as described above.

[0113] As in Figure 8 As further illustrated, in some aspects, process 800 may include: receiving a first HARQ-ACK bit associated with high priority from the UE using a first number of symbols via PUCCH format 1 and at least partially based on the downlink data (box 820). For example, the base station (e.g., using...) Figure 10 The receiving component 1002 described herein may use a first number of symbols via PUCCH format 1 and at least in part based on the downlink data to receive a first HARQ-ACK bit associated with high priority from the UE, as described above.

[0114] As in Figure 8 As further illustrated, in some aspects, process 800 may include: receiving a second HARQ-ACK bit associated with a low priority from the UE using a second number of symbols via the PUCCH format 1 and at least partially based on the downlink data, the second number of symbols being less than the first number of symbols (box 830). For example, the base station (e.g., using...) Figure 10 The receiving component 1002 described herein may use a second number of symbols via the PUCCH format 1 and at least in part based on the downlink data to receive a second HARQ-ACK bit associated with a low priority from the UE, the second number of symbols being less than the first number of symbols, as described above.

[0115] Process 800 may include additional aspects, such as any single aspect or any combination of aspects described below and / or in conjunction with one or more other processes described elsewhere herein.

[0116] In a first aspect, receiving the first HARQ-ACK bit and receiving the second HARQ-ACK bit comprises: receiving HARQ-ACK feedback via PUCCH format 1 based at least in part on time-division multiplexing of the first HARQ-ACK bit and the second HARQ-ACK bit.

[0117] In a second aspect, either alone or in combination with the first aspect, receiving a first HARQ-ACK bit includes: receiving a repetition of the first HARQ-ACK bit using a first number of symbols, and receiving a second HARQ-ACK bit includes: receiving a repetition of the second HARQ-ACK bit using a second number of symbols, wherein the number of repetitions of the first HARQ-ACK bit is greater than the number of repetitions of the second HARQ-ACK bit, so as to increase the reliability of the first HARQ-ACK bit relative to the second HARQ-ACK bit.

[0118] In a third aspect, either alone or in combination with one or more of the first and second aspects, process 800 includes: transmitting to the UE via a radio resource control message parameters defining one or more of a first number of symbols and a second number of symbols.

[0119] In the fourth aspect, either alone or in combination with one or more of the first to third aspects, process 800 includes: transmitting to the UE via downlink control information one or more of a parameter defining a first number of symbols and a second number of symbols.

[0120] In the fifth aspect, receiving the first HARQ-ACK bit and receiving the second HARQ-ACK bit, alone or in combination with one or more of the first to fourth aspects, includes: receiving the first HARQ-ACK bit earlier in time than the second HARQ-ACK bit, and the first number of symbols appearing earlier in time than the second number of symbols.

[0121] In the sixth aspect, either alone or in combination with one or more of the first to fifth aspects, process 800 includes: receiving, from the UE, both a first HARQ-ACK bit associated with high priority and a second HARQ-ACK bit associated with low priority, using a second number of symbols via the PUCCH format 1 and at least partially based on the downlink data.

[0122] In the seventh aspect, receiving a first HARQ-ACK bit, either alone or in combination with one or more of the first to sixth aspects, comprises: receiving the first HARQ-ACK bit using a first number of symbols associated with a first frequency band and receiving the first HARQ-ACK bit using a third number of symbols associated with a second frequency band; and receiving a second HARQ-ACK bit comprises: receiving the second HARQ-ACK bit using a second number of symbols associated with the first frequency band and receiving the second HARQ-ACK bit using a fourth number of symbols associated with the second frequency band, wherein the fourth number of symbols is less than the third number of symbols.

[0123] In the eighth aspect, receiving a first HARQ-ACK bit, either alone or in combination with one or more of the first to seventh aspects, comprises: receiving a first HARQ-ACK bit using a first number of symbols and receiving a first HARQ-ACK bit using a second number of symbols, wherein the first number of symbols and the second number of symbols are associated with a first frequency band; receiving a first HARQ-ACK bit using a third number of symbols and receiving a first HARQ-ACK bit using a fourth number of symbols, wherein the third number of symbols and the fourth number of symbols are associated with a second frequency band, and wherein the fourth number of symbols is less than the third number of symbols; and receiving a second HARQ-ACK bit comprises: receiving a second HARQ-ACK bit using a second number of symbols associated with the first frequency band and receiving a second HARQ-ACK bit using a fourth number of symbols associated with the second frequency band.

[0124] although Figure 8 An example box of process 800 is shown, but in some respects, process 800 may include... Figure 8 The boxes depicted in the diagram are compared to additional boxes, fewer boxes, different boxes, or boxes arranged differently. Additionally or alternatively, two or more boxes in process 800 can be executed in parallel.

[0125] Figure 9 This is a block diagram of an example device 900 for wireless communication. Device 900 may be a UE, or a UE may include device 900. In some aspects, device 900 includes a receiving component 902 and a transmitting component 904, which may communicate with each other (e.g., via one or more buses and / or one or more other components). As shown, device 900 may use the receiving component 902 and the transmitting component 904 to communicate with another device 906 (such as a UE, a base station, or another wireless communication device).

[0126] In some respects, device 900 can be configured to perform the functions described herein. Figure 4-6 The described one or more operations. Additionally or alternatively, the apparatus 900 may be configured to perform one or more processes described herein, such as Figure 7 The process 700. In some aspects, the apparatus 900 and / or Figure 9 One or more components shown may include the above combination Figure 2 One or more components of the described UE. Additionally or alternatively, Figure 9 One or more components shown can be combined as described above. Figure 2Implementation within one or more of the described components. Additionally or alternatively, one or more components in the set of components may be implemented at least partially as software stored in memory. For example, a component (or a portion of a component) may be implemented as instructions or code stored in a non-transitory computer-readable medium and may be executed by a controller or processor to perform the function or operation of that component.

[0127] Receiver 902 may receive communications (such as reference signals, control information, data communications, or combinations thereof) from device 906. Receiver 902 may provide the received communications to one or more other components of device 900. In some aspects, receiver 902 may perform signal processing on the received communications (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, demapping, equalization, interference cancellation, or decoding, etc.), and may provide the processed signal to one or more other components of device 906. In some aspects, receiver 902 may include combinations of the above. Figure 2 The described UE includes one or more antennas, demodulators, MIMO detectors, receiver processors, controllers / processors, memory, or combinations thereof.

[0128] The transmission component 904 can transmit communications (such as reference signals, control information, data communications, or combinations thereof) to the device 906. In some aspects, one or more other components of the device 906 can generate communications and provide the generated communications to the transmission component 904 for transmission to the device 906. In some aspects, the transmission component 904 can perform signal processing (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, encoding, etc.) on the generated communications and can transmit the processed signals to the device 906. In some aspects, the transmission component 904 can include combinations of the above. Figure 2 The described UE includes one or more antennas, modulators, transmit MIMO processors, transmit processors, controllers / processors, memory, or combinations thereof. In some aspects, the transmit component 904 may be co-located with the receive component 902 in a transceiver.

[0129] The receiving component 902 can receive downlink data from the base station. The transmitting component 904 can use a first number of symbols via PUCCH format 1 and at least partially based on the downlink data to transmit a first HARQ-ACK bit associated with high priority to the base station. The transmitting component 904 can use a second number of symbols via PUCCH format 1 and at least partially based on the downlink data to transmit a second HARQ-ACK bit associated with low priority to the base station, the second number of symbols being less than the first number of symbols.

[0130] The transmission component 904 can transmit HARQ-ACK feedback via PUCCH format 1, at least in part, based on time-division multiplexing of the first HARQ-ACK bit and the second HARQ-ACK bit.

[0131] The transmission component 904 may use a first number of symbols to transmit the repetition of the first HARQ-ACK bit and a second number of symbols to transmit the repetition of the second HARQ-ACK bit, wherein the number of repetitions of the first HARQ-ACK bit is greater than the number of repetitions of the second HARQ-ACK bit, so as to increase the reliability of the first HARQ-ACK bit relative to the second HARQ-ACK bit.

[0132] The receiving component 902 can receive parameters from the base station via radio resource control messages, which define one or more of a first number of symbols and a second number of symbols.

[0133] The receiving component 902 can receive parameters from the base station via downlink control information, including one or more of a first number of symbols and a second number of symbols.

[0134] The transmission component 904 can transmit the first HARQ-ACK bit earlier in time than the second HARQ-ACK bit, and the first number of symbols appears earlier in time than the second number of symbols.

[0135] The transmission component 904 may use a second number of symbols via the PUCCH format 1 and at least in part based on the downlink data to transmit to the base station both a first HARQ-ACK bit associated with high priority and a second HARQ-ACK bit associated with low priority.

[0136] The transmission component 904 may use a first number of symbols associated with a first frequency band to transmit a first HARQ-ACK bit, and a third number of symbols associated with a second frequency band to transmit the first HARQ-ACK bit. The transmission component 904 may use a second number of symbols associated with the first frequency band to transmit a second HARQ-ACK bit, and a fourth number of symbols associated with the second frequency band to transmit the second HARQ-ACK bit, wherein the fourth number of symbols is less than the third number of symbols.

[0137] Transmission component 904 may use a first number of symbols to transmit a first HARQ-ACK bit and a second number of symbols to transmit the first HARQ-ACK bit, wherein the first and second number of symbols are associated with a first frequency band. Transmission component 904 may use a third number of symbols to transmit the first HARQ-ACK bit and a fourth number of symbols to transmit the first HARQ-ACK bit, wherein the third and fourth number of symbols are associated with a second frequency band, and wherein the fourth number of symbols is less than the third number of symbols. Transmission component 904 may use a second number of symbols associated with the first frequency band to transmit a second HARQ-ACK bit and a fourth number of symbols associated with the second frequency band to transmit the second HARQ-ACK bit.

[0138] Figure 9 The number and arrangement of components shown are provided as an example. In practice, different arrangements may exist. Figure 9 The components shown are compared to additional components, fewer components, different components, or components arranged differently. Furthermore, Figure 9 The two or more components shown can be implemented within a single component, or Figure 9 The single component shown can be implemented as multiple distributed components. Additionally or alternatively, Figure 9 The component collection shown (e.g., one or more components) can be executed as described by Figure 9 The other set of components shown performs one or more functions.

[0139] Figure 10 This is a block diagram of an example device 1000 for wireless communication. Device 1000 may be a base station, or a base station may include device 1000. In some aspects, device 1000 includes a receiving component 1002 and a transmitting component 1004, which may communicate with each other (e.g., via one or more buses and / or one or more other components). As shown, device 1000 may use the receiving component 1002 and the transmitting component 1004 to communicate with another device 1006 (such as a UE, a base station, or another wireless communication device).

[0140] In some respects, device 1000 can be configured to perform the functions described herein. Figure 4-6 The described one or more operations. Additionally or alternatively, the apparatus 1000 may be configured to perform one or more processes described herein, such as Figure 8 The process 800. In some aspects, the device 1000 and / or Figure 10 One or more components shown may include the above combination Figure 2 One or more components of the described base station. Additional or alternative. Figure 10One or more components shown can be combined as described above. Figure 2 Implementation within one or more of the described components. Additionally or alternatively, one or more components in the set of components may be implemented at least partially as software stored in memory. For example, a component (or a portion of a component) may be implemented as instructions or code stored in a non-transitory computer-readable medium and may be executed by a controller or processor to perform the function or operation of that component.

[0141] Receiver 1002 may receive communications (such as reference signals, control information, data communications, or combinations thereof) from device 1006. Receiver 1002 may provide the received communications to one or more other components of device 1000. In some aspects, receiver 1002 may perform signal processing on the received communications (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, demapping, equalization, interference cancellation, or decoding, etc.), and may provide the processed signal to one or more other components of device 1006. In some aspects, receiver 1002 may include combinations of the above. Figure 2 The described base station includes one or more antennas, demodulators, MIMO detectors, receiver processors, controllers / processors, memory, or combinations thereof.

[0142] The transmission component 1004 can transmit communications (such as reference signals, control information, data communications, or combinations thereof) to the device 1006. In some aspects, one or more other components of the device 1006 can generate communications and provide the generated communications to the transmission component 1004 for transmission to the device 1006. In some aspects, the transmission component 1004 can perform signal processing (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, encoding, etc.) on the generated communications and can transmit the processed signals to the device 1006. In some aspects, the transmission component 1004 may include combinations of the above. Figure 2 The described base station includes one or more antennas, modulators, transmit MIMO processors, transmit processors, controllers / processors, memory, or combinations thereof. In some aspects, the transmit component 1004 may be co-located with the receive component 1002 in a transceiver.

[0143] The transmission component 1004 can transmit downlink data to the UE. The receiving component 1002 can use a first number of symbols via PUCCH format 1 and at least partially based on the downlink data to receive a first HARQ-ACK bit associated with high priority from the UE. The receiving component 1002 can use a second number of symbols via PUCCH format 1 and at least partially based on the downlink data to receive a second HARQ-ACK bit associated with low priority from the UE, the second number of symbols being less than the first number of symbols.

[0144] The receiving component 1002 can receive HARQ-ACK feedback via PUCCH format 1, at least in part, based on time-division multiplexing of the first HARQ-ACK bit and the second HARQ-ACK bit.

[0145] The receiving component 1002 may use a first number of symbols to receive repetitions of the first HARQ-ACK bit and a second number of symbols to receive repetitions of the second HARQ-ACK bit, wherein the number of repetitions of the first HARQ-ACK bit is greater than the number of repetitions of the second HARQ-ACK bit, so as to increase the reliability of the first HARQ-ACK bit relative to the second HARQ-ACK bit.

[0146] The transmission component 1004 can transmit parameters defining one or more of a first number of symbols and a second number of symbols to the UE via radio resource control messages.

[0147] The transmission component 1004 can transmit parameters defining one or more of a first number of symbols and a second number of symbols to the UE via downlink control information.

[0148] The receiving component 1002 can receive the first HARQ-ACK bit earlier in time than the second HARQ-ACK bit, and the first number of symbols appears earlier in time than the second number of symbols.

[0149] The receiving component 1002 may use a second number of symbols via the PUCCH format 1 and at least in part based on the downlink data to receive both a first HARQ-ACK bit associated with high priority and a second HARQ-ACK bit associated with low priority from the UE.

[0150] The receiving component 1002 may use a first number of symbols associated with a first frequency band to receive a first HARQ-ACK bit, and a third number of symbols associated with a second frequency band to receive the first HARQ-ACK bit. The receiving component 1002 may use a second number of symbols associated with the first frequency band to receive a second HARQ-ACK bit, and a fourth number of symbols associated with the second frequency band to receive the second HARQ-ACK bit, wherein the fourth number of symbols is less than the third number of symbols.

[0151] The receiving component 1002 may use a first number of symbols to receive a first HARQ-ACK bit and a second number of symbols to receive the first HARQ-ACK bit, wherein the first and second number of symbols are associated with a first frequency band. The receiving component 1002 may use a third number of symbols to receive the first HARQ-ACK bit and a fourth number of symbols to receive the first HARQ-ACK bit, wherein the third and fourth number of symbols are associated with a second frequency band, and wherein the fourth number of symbols is less than the third number of symbols. The receiving component 1002 may use a second number of symbols associated with the first frequency band to receive a second HARQ-ACK bit and a fourth number of symbols associated with the second frequency band to receive the second HARQ-ACK bit.

[0152] Figure 10 The number and arrangement of components shown are provided as an example. In practice, different arrangements may exist. Figure 10 The components shown are compared to additional components, fewer components, different components, or components arranged differently. Furthermore, Figure 10 The two or more components shown can be implemented within a single component, or Figure 10 The single component shown can be implemented as multiple distributed components. Additionally or alternatively, Figure 10 The component collection shown (e.g., one or more components) can be executed as described by Figure 10 The other set of components shown performs one or more functions.

[0153] The following provides an overview of the various aspects of this disclosure:

[0154] Aspect 1: A wireless communication method performed by a user equipment (UE) includes: receiving downlink data from a base station; transmitting a first hybrid automatic repeat request acknowledgment (HARQ-ACK) bit associated with high priority to the base station using a first number of symbols via a Physical Uplink Control Channel (PUCCH) format 1 and at least partially based on the downlink data; and transmitting a second HARQ-ACK bit associated with low priority to the base station using a second number of symbols via the PUCCH format 1 and at least partially based on the downlink data, the second number of symbols being less than the first number of symbols.

[0155] Aspect 2: The method of aspect 1, wherein transmitting the first HARQ-ACK bit and transmitting the second HARQ-ACK bit comprises: transmitting the HARQ-ACK feedback via the PUCCH format 1 at least in part based on time-division multiplexing of the first HARQ-ACK bit and the second HARQ-ACK bit.

[0156] Aspect 3: The method of any of Aspects 1 to 2, wherein: transmitting the first HARQ-ACK bit includes: transmitting a repetition of the first HARQ-ACK bit using a first number of symbols; and transmitting the second HARQ-ACK bit includes: transmitting a repetition of the second HARQ-ACK bit using a second number of symbols, wherein the number of repetitions of the first HARQ-ACK bit is greater than the number of repetitions of the second HARQ-ACK bit, so as to increase the reliability of the first HARQ-ACK bit relative to the second HARQ-ACK bit.

[0157] Aspect 4: The method of any of Aspects 1 to 3 further includes: receiving parameters from the base station via a radio resource control message, defining one or more of a first number of symbols and a second number of symbols.

[0158] Aspect 5: The method of any of Aspects 1 to 4 further includes: receiving parameters from the base station via downlink control information, which define one or more of a first number of symbols and a second number of symbols.

[0159] Aspect 6: The method of any of Aspects 1 to 5, wherein transmitting the first HARQ-ACK bit and transmitting the second HARQ-ACK bit comprises: transmitting the first HARQ-ACK bit earlier in time than the second HARQ-ACK bit, and wherein a first number of symbols appear earlier in time than a second number of symbols.

[0160] Aspect 7: The method of any of Aspects 1 to 6 further includes: transmitting, via the PUCCH format 1 and at least in part based on the downlink data, a first HARQ-ACK bit associated with high priority and a second HARQ-ACK bit associated with low priority to the base station using a second number of symbols.

[0161] Aspect 8: A method of any of Aspects 1 to 7, wherein transmitting the first HARQ-ACK bit comprises: transmitting the first HARQ-ACK bit using a first number of symbols associated with a first frequency band; and transmitting the first HARQ-ACK bit using a third number of symbols associated with a second frequency band; and transmitting the second HARQ-ACK bit comprises: transmitting the second HARQ-ACK bit using a second number of symbols associated with the first frequency band; and transmitting the second HARQ-ACK bit using a fourth number of symbols associated with the second frequency band, wherein the fourth number of symbols is less than the third number of symbols.

[0162] Aspect 9: A method of any of Aspects 1 to 8, wherein transmitting the first HARQ-ACK bit comprises: transmitting the first HARQ-ACK bit using a first number of symbols and transmitting the first HARQ-ACK bit using a second number of symbols, wherein the first number of symbols and the second number of symbols are associated with a first frequency band; and transmitting the first HARQ-ACK bit using a third number of symbols and transmitting the first HARQ-ACK bit using a fourth number of symbols, wherein the third number of symbols and the fourth number of symbols are associated with a second frequency band, and wherein the fourth number of symbols is less than the third number of symbols; and transmitting the second HARQ-ACK bit comprises: transmitting the second HARQ-ACK bit using a second number of symbols associated with the first frequency band and transmitting the second HARQ-ACK bit using a fourth number of symbols associated with the second frequency band.

[0163] Aspect 10: A wireless communication method performed by a base station, comprising: transmitting downlink data to a user equipment (UE); receiving a first hybrid automatic repeat request acknowledgment (HARQ-ACK) bit associated with high priority from the UE using a first number of symbols via a Physical Uplink Control Channel (PUCCH) format 1 and at least partially based on the downlink data; and receiving a second HARQ-ACK bit associated with low priority from the UE using a second number of symbols via the PUCCH format 1 and at least partially based on the downlink data, the second number of symbols being less than the first number of symbols.

[0164] Aspect 11: The method of aspect 10, wherein receiving the first HARQ-ACK bit and receiving the second HARQ-ACK bit comprises: receiving HARQ-ACK feedback via PUCCH format 1 based at least in part on time-division multiplexing of the first HARQ-ACK bit and the second HARQ-ACK bit.

[0165] Aspect 12: The method of any of Aspects 10 to 11, wherein: receiving the first HARQ-ACK bit includes: receiving a repetition of the first HARQ-ACK bit using a first number of symbols; and receiving the second HARQ-ACK bit includes: receiving a repetition of the second HARQ-ACK bit using a second number of symbols, wherein the number of repetitions of the first HARQ-ACK bit is greater than the number of repetitions of the second HARQ-ACK bit, so as to increase the reliability of the first HARQ-ACK bit relative to the second HARQ-ACK bit.

[0166] Aspect 13: The method of any of Aspects 10 to 12 further includes: transmitting to the UE via a radio resource control message a parameter defining one or more of a first number of symbols and a second number of symbols.

[0167] Aspect 14: The method of any of Aspects 10 to 13 further includes: transmitting to the UE via downlink control information a parameter defining one or more of a first number of symbols and a second number of symbols.

[0168] Aspect 15: The method of any of Aspects 10 to 14, wherein receiving a first HARQ-ACK bit and receiving a second HARQ-ACK bit comprises: receiving the first HARQ-ACK bit earlier in time than the second HARQ-ACK bit, and wherein a first number of symbols appear earlier in time than a second number of symbols.

[0169] Aspect 16: The method of any of Aspects 10 to 15 further includes: receiving, from the UE, both a first HARQ-ACK bit associated with high priority and a second HARQ-ACK bit associated with low priority via the PUCCH format 1 and at least in part based on the downlink data, using a second number of symbols.

[0170] Aspect 17: The method of any of Aspects 10 to 16, wherein receiving a first HARQ-ACK bit comprises: receiving a first HARQ-ACK bit using a first number of symbols associated with a first frequency band; and receiving a first HARQ-ACK bit using a third number of symbols associated with a second frequency band; and receiving a second HARQ-ACK bit comprises: receiving a second HARQ-ACK bit using a second number of symbols associated with a first frequency band; and receiving a second HARQ-ACK bit using a fourth number of symbols associated with a second frequency band, wherein the fourth number of symbols is less than the third number of symbols.

[0171] Aspect 18: A method of any of Aspects 10 to 17, wherein receiving a first HARQ-ACK bit comprises: receiving a first HARQ-ACK bit using a first number of symbols and receiving a first HARQ-ACK bit using a second number of symbols, wherein the first number of symbols and the second number of symbols are associated with a first frequency band; and receiving a first HARQ-ACK bit using a third number of symbols and receiving a first HARQ-ACK bit using a fourth number of symbols, wherein the third number of symbols and the fourth number of symbols are associated with a second frequency band, and wherein the fourth number of symbols is less than the third number of symbols; and receiving a second HARQ-ACK bit comprises: receiving a second HARQ-ACK bit using a second number of symbols associated with the first frequency band and receiving a second HARQ-ACK bit using a fourth number of symbols associated with the second frequency band.

[0172] Aspect 19: An apparatus for wireless communication at a device, comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform one or more of the methods of aspects 1-9.

[0173] Aspect 20: An apparatus for wireless communication, comprising: a memory and one or more processors coupled to the memory, the memory and the one or more processors being configured to perform one or more of the methods of aspects 1-9.

[0174] Aspect 21: An apparatus for wireless communication, comprising: at least one means for performing one or more methods as described in aspects 1-9.

[0175] Aspect 22: A non-transient computer-readable medium storing code for wireless communication, the code including instructions executable by a processor to perform one or more of the methods of aspects 1-9.

[0176] Aspect 23: A non-transient computer-readable medium storing a set of instructions for wireless communication, the set of instructions including one or more instructions which, when executed by one or more processors of a device, cause the device to perform one or more of the methods of aspects 1-9.

[0177] Aspect 24: An apparatus for wireless communication at a device, comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform one or more of the methods of aspects 10-18.

[0178] Aspect 25: An apparatus for wireless communication, comprising: a memory and one or more processors coupled to the memory, the memory and the one or more processors being configured to perform one or more of the methods of aspects 10-18.

[0179] Aspect 26: An apparatus for wireless communication, comprising: at least one means for performing one or more methods as described in aspects 10-18.

[0180] Aspect 27: A non-transient computer-readable medium storing code for wireless communication, the code including instructions executable by a processor to perform one or more methods as described in aspects 10-18.

[0181] Aspect 28: A non-transient computer-readable medium storing a set of instructions for wireless communication, the set of instructions including one or more instructions which, when executed by one or more processors of a device, cause the device to perform one or more methods as described in aspects 10-18.

[0182] The foregoing disclosure provides explanations and descriptions, but is not intended to be exhaustive or to limit the aspects to the precise forms disclosed. Modifications and variations may be made in light of the foregoing disclosure or may be obtained through practice.

[0183] As used herein, the term "component" is intended to be broadly interpreted as hardware and / or a combination of hardware and software. "Software" should be broadly interpreted as instructions, instruction sets, code, code segments, program code, programs, subroutines, software modules, applications, software applications, software packages, routines, subroutines, objects, executables, threads of execution, procedures, and / or functions, whether referred to as software, firmware, middleware, microcode, hardware description languages, or other terms. As used herein, processors are implemented using hardware and / or a combination of hardware and software. It will be apparent that the systems and / or methods described herein can be implemented in various forms of hardware and / or combinations of hardware and software. The actual dedicated control hardware or software code used to implement these systems and / or methods is not limited in any way. Thus, the operation and behavior of these systems and / or methods are described herein without reference to any specific software code—it is understood that software and hardware can be designed to implement these systems and / or methods, at least in part, based on the descriptions herein.

[0184] As used in this article, depending on the context, a threshold can refer to a value greater than the threshold, greater than or equal to the threshold, less than the threshold, less than or equal to the threshold, equal to the threshold, not equal to the threshold, etc.

[0185] Although specific combinations of features are described in the claims and / or disclosed in the specification, these combinations are not intended to limit the disclosure of aspects. In fact, many of these features can be combined in ways not specifically described in the claims and / or not disclosed in the specification. Although each dependent claim listed below may be directly subordinated to only one claim, the disclosure of aspects includes each dependent claim being combined with each other claim in this set of claims. As used herein, the phrase “at least one of” refers to any combination of these items, including single members. As an example, “at least one of a, b, or c” is intended to cover: a, b, c, ab, ac, bc, and abc, as well as any combination having multiple identical elements (e.g., aa, aaa, aab, aac, abb, acc, bb, bbb, bbc, cc, and ccc, or any other ordering of a, b, and c).

[0186] The elements, actions, or instructions used herein should not be construed as critical or necessary unless explicitly stated otherwise. Furthermore, as used herein, the articles “a” and “a certain” are intended to include one or more items and may be used interchangeably with “one or more.” Additionally, as used herein, the article “the” is intended to include one or more items referenced in conjunction with the article “the” and may be used interchangeably with “one or more.” Furthermore, as used herein, the terms “set” and “group” are intended to include one or more items (e.g., related items, unrelated items, or a combination of related and unrelated items) and may be used interchangeably with “one or more.” Where only one item is intended, the phrase “only one” or similar language is used. Moreover, as used herein, the terms “have,” “contain,” “include,” etc., are intended to be open-ended terms. Additionally, the phrase “based on” is intended to mean “at least partially based on” unless otherwise explicitly stated. Moreover, as used herein, the term “or” is intended to be inclusive when used in a sequence and may be used interchangeably with “and / or” unless otherwise explicitly stated (e.g., in combination with “either of” or “only one of”).

Claims

1. A wireless communication method performed by a user equipment (UE), comprising: Receive downlink data from the base station; The base station is transmitted, using a first number of symbols via Physical Uplink Control Channel (PUCCH) format 1 and at least partially based on the downlink data, a first Hybrid Automatic Repeat Request Acknowledgment (HARQ-ACK) bit associated with high priority, wherein transmitting the first HARQ-ACK bit includes one or more repetitions of transmitting the first HARQ-ACK bit using the first number of symbols; and A second number of symbols is used to transmit a second HARQ-ACK bit associated with low priority to the base station via the PUCCH format 1 and at least in part based on the downlink data. The second number of symbols is less than the first number of symbols. Transmitting the second HARQ-ACK bit includes transmitting one or more repetitions of the second HARQ-ACK bit using the second number of symbols. The number of repetitions of the first HARQ-ACK bit is greater than the number of repetitions of the second HARQ-ACK bit.

2. The method of claim 1, wherein transmitting the first HARQ-ACK bit and transmitting the second HARQ-ACK bit comprises: HARQ-ACK feedback is transmitted via PUCCH format 1, at least in part, based on time-division multiplexing of the first HARQ-ACK bit and the second HARQ-ACK bit.

3. The method of claim 1, further comprising: The parameter is received from the base station via a radio resource control message, which is one or more of the first number of symbols and the second number of symbols.

4. The method of claim 1, further comprising: The parameter is received from the base station via downlink control information, which is one or more of the first number of symbols and the second number of symbols.

5. The method of claim 1, wherein transmitting the first HARQ-ACK bit and transmitting the second HARQ-ACK bit comprises: The first HARQ-ACK bit is transmitted earlier in time than the second HARQ-ACK bit, and the first number of symbols appears earlier in time than the second number of symbols.

6. The method of claim 1, further comprising: Using the second number of symbols, both the first HARQ-ACK bit associated with the high priority and the second HARQ-ACK bit associated with the low priority are transmitted to the base station via the PUCCH format 1 and at least in part based on the downlink data.

7. The method of claim 1, wherein Transmitting the first HARQ-ACK bit includes: The first number of symbols associated with the first frequency band are used to transmit the first HARQ-ACK bits; as well as The first HARQ-ACK bit is transmitted using a third number of symbols associated with the second frequency band; and Transmitting the second HARQ-ACK bit includes: The second number of symbols associated with the first frequency band are used to transmit the second HARQ-ACK bits; as well as The second HARQ-ACK bit is transmitted using a fourth number of symbols associated with the second frequency band, wherein the fourth number of symbols is less than the third number of symbols.

8. The method of claim 1, wherein Transmitting the first HARQ-ACK bit includes: The first number of symbols are used to transmit the first HARQ-ACK bit and the second number of symbols are used to transmit the first HARQ-ACK bit, wherein the first number of symbols and the second number of symbols are associated with a first frequency band; as well as The first HARQ-ACK bit is transmitted using a third number of symbols and the first HARQ-ACK bit is transmitted using a fourth number of symbols, wherein the third number of symbols and the fourth number of symbols are associated with a second frequency band, and wherein the fourth number of symbols is less than the third number of symbols. and Transmitting the second HARQ-ACK bit includes: The second HARQ-ACK bit is transmitted using the second number of symbols associated with the first frequency band and the second HARQ-ACK bit is transmitted using the fourth number of symbols associated with the second frequency band.

9. A wireless communication method performed by a base station, comprising: Transmit downlink data to user equipment (UE); Using a first number of symbols via Physical Uplink Control Channel (PUCCH) format 1 and at least partially based on the downlink data, the UE receives a first Hybrid Automatic Repeat Request (HARQ-ACK) bit associated with high priority, wherein receiving the first HARQ-ACK bit includes receiving one or more repetitions of the first HARQ-ACK bit using the first number of symbols; and The UE receives a second HARQ-ACK bit associated with a low priority using a second number of symbols via the PUCCH format 1 and at least in part based on the downlink data, the second number of symbols being less than the first number of symbols, wherein receiving the second HARQ-ACK bit includes receiving one or more repetitions of the second HARQ-ACK bit using the second number of symbols, and wherein the number of repetitions of the first HARQ-ACK bit is greater than the number of repetitions of the second HARQ-ACK bit.

10. The method of claim 9, wherein receiving the first HARQ-ACK bit and receiving the second HARQ-ACK bit comprise: HARQ-ACK feedback is received via PUCCH format 1, at least in part, based on time-division multiplexing of the first HARQ-ACK bit and the second HARQ-ACK bit.

11. The method of claim 9, further comprising: The parameters defining one or more of the first number of symbols and the second number of symbols are transmitted to the UE via radio resource control messages.

12. The method of claim 9, further comprising: The parameters defining one or more of the first number of symbols and the second number of symbols are transmitted to the UE via downlink control information.

13. The method of claim 9, wherein receiving the first HARQ-ACK bit and receiving the second HARQ-ACK bit comprise: The first HARQ-ACK bit is received earlier in time than the second HARQ-ACK bit, and the first number of symbols appears earlier in time than the second number of symbols.

14. The method of claim 9, further comprising: The second number of symbols are used to receive, via the PUCCH format 1 and at least in part based on the downlink data, both the first HARQ-ACK bit associated with the high priority and the second HARQ-ACK bit associated with the low priority from the UE.

15. The method of claim 9, wherein Receiving the first HARQ-ACK bit includes: The first number of symbols associated with the first frequency band are used to receive the first HARQ-ACK bit; as well as The first HARQ-ACK bit is received using a third number of symbols associated with the second frequency band; and Receiving the second HARQ-ACK bit includes: The second number of symbols associated with the first frequency band are used to receive the second HARQ-ACK bits; as well as The second HARQ-ACK bit is received using a fourth number of symbols associated with the second frequency band, wherein the fourth number of symbols is less than the third number of symbols.

16. The method of claim 9, wherein Receiving the first HARQ-ACK bit includes: The first number of symbols are used to receive the first HARQ-ACK bit and the second number of symbols are used to receive the first HARQ-ACK bit, wherein the first number of symbols and the second number of symbols are associated with a first frequency band; as well as The first HARQ-ACK bit is received using a third number of symbols and the first HARQ-ACK bit is received using a fourth number of symbols, wherein the third number of symbols and the fourth number of symbols are associated with a second frequency band, and wherein the fourth number of symbols is less than the third number of symbols. and Receiving the second HARQ-ACK bit includes: The second HARQ-ACK bit is received using the second number of symbols associated with the first frequency band and the second HARQ-ACK bit is received using the fourth number of symbols associated with the second frequency band.

17. A user equipment (UE) for wireless communication, comprising: Memory; as well as One or more processors operatively coupled to the memory, the memory and the one or more processors being configured to: Receive downlink data from the base station; The base station is transmitted, using a first number of symbols via Physical Uplink Control Channel (PUCCH) format 1 and at least partially based on the downlink data, a first Hybrid Automatic Repeat Request Acknowledgment (HARQ-ACK) bit associated with high priority, wherein transmitting the first HARQ-ACK bit includes one or more repetitions of transmitting the first HARQ-ACK bit using the first number of symbols; and A second number of symbols is used to transmit a second HARQ-ACK bit associated with low priority to the base station via the PUCCH format 1 and at least in part based on the downlink data. The second number of symbols is less than the first number of symbols. Transmitting the second HARQ-ACK bit includes transmitting one or more repetitions of the second HARQ-ACK bit using the second number of symbols. The number of repetitions of the first HARQ-ACK bit is greater than the number of repetitions of the second HARQ-ACK bit.

18. The UE of claim 17, wherein the one or more processors are configured, when transmitting the first HARQ-ACK bit and transmitting the second HARQ-ACK bit, to transmit HARQ-ACK feedback via PUCCH format 1 at least in part based on time-division multiplexing of the first HARQ-ACK bit and the second HARQ-ACK bit.

19. The UE of claim 17, wherein the one or more processors are further configured to: The parameter is received from the base station via a radio resource control message, which is one or more of the first number of symbols and the second number of symbols.

20. The UE of claim 17, wherein the one or more processors are further configured to: The parameter is received from the base station via downlink control information, which is one or more of the first number of symbols and the second number of symbols.

21. The UE of claim 17, wherein the one or more processors are configured, when transmitting the first HARQ-ACK bit and transmitting the second HARQ-ACK bit, to transmit the first HARQ-ACK bit earlier in time than the second HARQ-ACK bit, and wherein the first number of symbols appears earlier in time than the second number of symbols.

22. A base station for wireless communication, comprising: Memory; as well as One or more processors operatively coupled to the memory, the memory and the one or more processors being configured to: Transmit downlink data to user equipment (UE); Using a first number of symbols via Physical Uplink Control Channel (PUCCH) format 1 and at least partially based on the downlink data, the UE receives a first Hybrid Automatic Repeat Request (HARQ-ACK) bit associated with high priority, wherein receiving the first HARQ-ACK bit includes receiving one or more repetitions of the first HARQ-ACK bit using the first number of symbols; and The UE receives a second HARQ-ACK bit associated with a low priority using a second number of symbols via the PUCCH format 1 and at least in part based on the downlink data, the second number of symbols being less than the first number of symbols, wherein receiving the second HARQ-ACK bit includes receiving one or more repetitions of the second HARQ-ACK bit using the second number of symbols, and wherein the number of repetitions of the first HARQ-ACK bit is greater than the number of repetitions of the second HARQ-ACK bit.

23. The base station of claim 22, wherein the one or more processors, when receiving the first HARQ-ACK bit and receiving the second HARQ-ACK bit, are configured to: receive HARQ-ACK feedback via PUCCH format 1 based at least in part on time-division multiplexing of the first HARQ-ACK bit and the second HARQ-ACK bit.

24. The base station of claim 22, wherein the one or more processors are further configured to: The parameters defining one or more of the first number of symbols and the second number of symbols are transmitted to the UE via radio resource control messages.

25. The base station of claim 22, wherein the one or more processors are further configured to: The parameters defining one or more of the first number of symbols and the second number of symbols are transmitted to the UE via downlink control information.

26. The base station of claim 22, wherein the one or more processors are configured, when receiving the first HARQ-ACK bit and receiving the second HARQ-ACK bit, to receive the first HARQ-ACK bit earlier in time than the second HARQ-ACK bit, and wherein the first number of symbols appears earlier in time than the second number of symbols.

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