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 map hybrid automatic repeat request acknowledgement (HARQ-ACK) feedback including first HARQ-ACK bits associated with a high priority and second HARQ-ACK bits associated with a low priority to a sequence cyclic shift value that provides unequal reliability between the first HARQ-ACK bits and the second HARQ-ACK bits. The UE can transmit the HARQ-ACK feedback to a base station via a physical uplink control channel (PUCCH) format 0. Numerous other aspects are provided.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] The present Application for Patent claims priority to U.S. Nonprovisional Patent Application No. 17 / 112,236 entitled “PRIORITY-BASED HYBRID AUTOMATIC REPEAT REQUEST ACKNOWLEDGEMENT (HARQ-ACK) FEEDBACK” filed December 4, 2020, which is hereby expressly incorporated by reference herein in its entirety.

[0003] TECHNICAL FIELD

[0004] Aspects of the present disclosure relate generally to wireless communication, and more specifically to techniques and apparatuses for priority-based hybrid automatic repeat request acknowledgement (HARQ-ACK) feedback. BACKGROUND

[0005] Wireless communication systems are widely deployed to provide various telecommunication services such as telephony, video, data, messaging, and broadcasts. Typical wireless communication systems can employ multiple-access technologies capable of supporting communication with multiple users by sharing available system resources (e.g., bandwidth, transmit power, etc.). Examples of such multiple-access technologies include code division multiple access (CDMA) systems, time division multiple access (TDMA) systems, frequency division multiple access (FDMA) systems, orthogonal frequency division multiple access (OFDMA) systems, single-carrier frequency division multiple access (SC-FDMA) systems, time division synchronous code division multiple access (TD-SCDMA) systems, and Long Term Evolution (LTE). LTE / LTE-Advanced is a set of enhancements to the Universal Mobile Telecommunications System (UMTS) mobile standard promulgated by the Third Generation Partnership Project (3 GPP).

[0006] A wireless network can include a number of base stations (BSs) that can support communication for a number of user equipment (UEs). A user equipment (UE) can communicate with a base station (BS) via the downlink and uplink. The downlink (or forward link) refers to the communication link from the BS to the UE, and the 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 can be referred to as a Node B, a gNB, an access point (AP), a radio head, a transmit receive point (TRP), a new radio (NR) BS, a 5G Node B, and / or the like.

[0007] The above multiple access technologies have been adopted in various telecommunication standards to provide common protocols facilitating communication between wireless devices in cities, countries, and even globally. New Radio (NR), which can also be referred to as 5G, is a set of enhancements to the LTE mobile standard promulgated by the Third Generation Partnership Project (3GPP). NR is designed to better support mobile broadband Internet access by improving spectral efficiency, lowering costs, improving services, making use of new spectrum, and better integrating with other open standards using OFDM with a cyclic prefix (CP) (CP-OFDM) on the downlink (DL), using CP- OFDM and / or SC-FDM (e.g., also known as discrete Fourier transform spread orthogonal frequency division multiplexing (DFT-s-OFDM)) on the uplink (UL), as well as supporting beamforming, multiple input multiple output (MIMO) antenna technology, and carrier aggregation. However, as the demand for mobile broadband access continues to increase, there exists a need for further improvements in LTE, NR, and other radio access technologies.

[0008] SUMMARY

[0009] In some aspects, a method of wireless communication performed by a UE includes mapping HARQ-ACK feedback including a first HARQ-ACK bit associated with a high priority and a second HARQ-ACK bit associated with a low priority to a sequence cyclic shift value that provides unequal reliability between the first HARQ-ACK bit and the second HARQ-ACK bit; and transmitting, to a base station, the HARQ-ACK feedback via a physical uplink control channel (PUCCH) format 0.

[0010] In some aspects, a method of wireless communication performed by a base station includes transmitting downlink data to a UE; and receiving, from the UE via a PUCCH format 0, HARQ-ACK feedback based at least in part on the downlink data, wherein the HARQ-ACK feedback includes a first HARQ-ACK bit associated with a high priority and a second HARQ-ACK bit associated with a low priority, and wherein the HARQ-ACK feedback is mapped to a sequence cyclic shift value that provides unequal reliability between the first HARQ-ACK bit and the second HARQ-ACK bit.

[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 configured to map HARQ-ACK feedback including a first HARQ-ACK bit associated with a high priority and a second HARQ-ACK bit associated with a low priority to a sequence cyclic shift value that provides unequal reliability between the first HARQ-ACK bit and the second HARQ-ACK bit; and transmit, to a base station via PUCCH format 0, the HARQ-ACK feedback.

[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 configured to transmit, to a UE, downlink data; and receive, from the UE via PUCCH format 0, HARQ-ACK feedback based at least in part on the downlink data, wherein the HARQ-ACK feedback includes a first HARQ-ACK bit associated with a high priority and a second HARQ-ACK bit associated with a low priority, and wherein the HARQ-ACK feedback is mapped to a sequence cyclic shift value that provides unequal reliability between the first HARQ-ACK bit and the second HARQ-ACK bit.

[0013] In some aspects, a non-transitory 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 map HARQ-ACK feedback including a first HARQ-ACK bit associated with a high priority and a second HARQ-ACK bit associated with a low priority to a sequence cyclic shift value that provides unequal reliability between the first HARQ-ACK bit and the second HARQ-ACK bit; and transmit, to a base station via PUCCH format 0, the HARQ-ACK feedback.

[0014] In some aspects, a non-transitory 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 base station, cause the base station to: transmit downlink data to a UE; and receive HARQ-ACK feedback from the UE via PUCCH format 0 based at least in part on the downlink data, wherein the HARQ-ACK feedback includes a first HARQ-ACK bit associated with a high priority and a second HARQ-ACK bit associated with a low priority, and wherein the HARQ-ACK feedback is mapped to a sequence cyclic shift value that provides unequal reliability between the first HARQ-ACK bit and the second HARQ-ACK bit.

[0015] In some aspects, an apparatus for wireless communication includes means for mapping HARQ-ACK feedback including a first HARQ-ACK bit associated with a high priority and a second HARQ-ACK bit associated with a low priority to a sequence cyclic shift value that provides unequal reliability between the first HARQ-ACK bit and the second HARQ-ACK bit; and means for transmitting the HARQ-ACK feedback to a base station via PUCCH format 0.

[0016] In some aspects, an apparatus for wireless communication includes means for transmitting downlink data to a UE; and means for receiving HARQ-ACK feedback from the UE via PUCCH format 0 based at least in part on the downlink data, wherein the HARQ-ACK feedback includes a first HARQ-ACK bit associated with a high priority and a second HARQ-ACK bit associated with a low priority, and wherein the HARQ-ACK feedback is mapped to a sequence cyclic shift value that provides unequal reliability between the first HARQ-ACK bit and the second HARQ-ACK bit.

[0017] Aspects generally include a method, apparatus, system, computer program product, non-transitory computer-readable medium, user equipment, base station, wireless communication device, and / or processing system as substantially described herein with reference to and as illustrated by the accompanying drawings and specification.

[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] Figures 4-7 This is a diagram illustrating examples of priority-based HARQ-ACK feedback associated with various aspects of this disclosure.

[0025] Figures 8-9 This is a diagram illustrating an example process associated with priority-based HARQ-ACK feedback according to various aspects of this disclosure.

[0026] Figures 10-11 This is a block diagram of an example device for wireless communication according to various aspects of this disclosure.

[0027] Detailed description

[0028] Various aspects of the disclosure are described more fully below. However, the disclosure may be implemented in many different forms and should not be construed as limited to the specific aspects set forth throughout this disclosure. Rather, these aspects are provided as illustrative examples of the disclosure, and the disclosure is intended to include any aspect of the disclosure described herein, whether implemented independently or in combination with any other aspect of the disclosure. For example, an apparatus can be implemented or a method can be practiced using any number of the aspects set forth herein. In addition, the scope of the disclosure is intended to encompass use of such apparatus or methods with any other structure, functionality, or structure and functionality in addition to or other than the various aspects of the disclosure set forth herein. It will be understood that any aspect of the disclosure disclosed herein can be implemented by one or more elements of a claim.

[0029] Several aspects of telecommunication systems will now be presented with reference to various apparatus and methods. These apparatus and methods will be described in the following detailed description and illustrated in the accompanying drawings by various blocks, modules, components, circuits, steps, processes, algorithms, etc. (collectively referred to as “elements”). These elements can be implemented using hardware, software, or combinations thereof. Whether such elements are implemented as hardware or software depends on the particular application and design constraints imposed on the overall system.

[0030] It should be noted that while aspects can be described herein using terminology commonly associated with a 5G or NR radio access technology (RAT), aspects of the present disclosure can be applied to other RATs, such as a 3G RAT, a 4G RAT, and / or a RAT subsequent to 5G (e.g., 6G).

[0031] Figure 1 FIG. 1 is a diagram illustrating an example of a wireless network 100, in accordance with various aspects of the present disclosure. The wireless network 100 can be or can include elements of a 5G (NR) network and / or an LTE network, among other examples. The wireless network 100 can include a number of base stations 110 (shown as BS 110a, BS 110b, BS 110c, and BS 1 lOd) and other network entities. A base station (BS) is an entity that communicates with user equipment (UE) and can also be referred to as an NR BS, a Node B, a gNB, a 5G node B (NB), an access point, a transmit receive point (TRP), and / or the like. Each BS can provide communication coverage for a particular geographic area. In 3GPP, the term “cell” can refer to a coverage area of a BS and / or a BS subsystem serving the coverage area, depending on the context in which the term is used.

[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 that includes BSs of different types, such as macro BSs, pico BSs, femto BSs, relay BSs, or the like. These different types of BSs can have different transmit power levels, different coverage areas, and different impacts on interference. For example, macro BSs can have a high transmit power level (e.g., 5 to 40 Watts) whereas pico BSs, femto BSs, and relay BSs can have relatively lower transmit power levels (e.g., 0.1 to 2 Watts). A network controller 130 can couple to a set of BSs and can provide coordination and control for these BSs. Network controller 130 can be

[0036] A network controller 130 can couple to a set of BSs and can provide coordination and control for these BSs. Network controller 130 can be

[0037] UEs 120 (e.g., 120a, 120b, 120c) can be dispersed throughout wireless network 100, and each UE can be stationary or mobile. A UE can also be referred to as an access terminal, a terminal, a mobile station, a subscriber unit, a station, etc. A UE can be a cellular phone (e.g., a smart phone), a personal digital assistant (PDA), a wireless modem, a wireless communication device, a handheld device, a laptop computer, a cordless phone, a wireless local loop (WLL) station, a tablet, a camera, a gaming device, a netbook, a smartbook, an ultrabook, a medical device or equipment, a biometric sensor / device, a wearable device such as a smart watch, smart clothing, smart glasses, a smart wrist band, smart jewelry (e.g., a smart ring, a smart bracelet), an entertainment device (e.g., a music or video device, or a satellite radio), a vehicular component or sensor, a smart meter / sensor, industrial manufacturing equipment, a global positioning system device, or any other suitable device that is configured to communicate via a wireless or wired medium.

[0038] Some UEs can be considered machine-type communication (MTC) or evolved or enhanced machine-type communication (eMTC) UEs. MTC and eMTC UEs include, for example, robots, drones, remote devices, sensors, meters, monitors, and / or location tags, that can communicate with a base station, another device (e.g., remote device), or some other entity. A wireless node can provide, for example, connectivity for or to a network (e.g., a wide area network such as the Internet or a cellular network) via a wired or wireless communication link. Some UEs can be considered Internet-of-Things (IoT) UEs, and / or can be implemented as NB-IoT (narrowband

[0039] In general, any number of wireless networks can be deployed in a given geographic area. Each wireless network can support a particular RAT and can operate on one or more frequencies. A RAT can also be referred to as a radio technology, an air interface, and / or the like. Frequencies can also be referred to as carriers, frequency channels, and / or the like. Each frequency can support a single RAT in a given geographic area in order to avoid interference between wireless networks of different RATs. In some cases, NR or 5G RAT networks can be deployed.

[0040] In some aspects, two or more UEs 120 (e.g., shown as UE 120a and UE 120e) can communicate directly using one or more sidelink channels (e.g., without using base station 110 as an intermediary to communicate with one another). For example, UE 120 can perform scheduling operations, resource selection operations, and / or other operations described elsewhere herein as being performed by base station 110. Some communications between UEs 120 can be referred to as “vehicle-to- everything” (V2X) communications. For example, V2X communications can include

[0041] Devices of wireless network 100 can communicate using the electromagnetic spectrum, which can be subdivided by frequency or wavelength into various classes, bands, channels, and so on. For example, devices of wireless network 100 can communicate using an operating band having a first frequency range (FR1), which can span from 410 MHz to 7.125 GHz, and / or can communicate using an operating band having a second frequency range (FR2), which can span from 24.25 GHz to 52.6 GHz. The frequencies between FR1 and FR2 are sometimes referred to as mid-band frequencies. Although a portion of FR1 is greater than 6 GHz, FR1 is often referred to as a “sub-6 GHz” band. Similarly, FR2 is often referred to as a “millimeter wave” band despite being different from the extremely high frequency (EHF) band (30 GHz - 300 GHz) identified by the International Telecommunications Union (ITU) as a “millimeter wave” band. Thus, unless specifically stated otherwise, it will be understood that the term “sub-6 GHz” or the like means frequencies less than 6 GHz, frequencies within FR1, and / or mid-band frequencies (e.g., greater than 7.125 GHz), as applicable. Similarly, unless specifically stated otherwise, it will be understood that, where “millimeter wave” or the like is used, this term means frequencies within FR2, frequencies within the EHF band (e.g., less than 24.25 GHz), and / or mid-band frequencies (e.g., greater than 52.6 GHz), as applicable. It is contemplated that the frequencies included in FR1 and FR2 can be modified, and thus the techniques described herein are applicable to those modified frequency ranges.

[0042] As indicated above, Figure 1 are provided as examples. Other examples can differ from what is described with respect to at least one of the following. Figure 1

[0043] Figure 2 is a diagram illustrating an example 200 in which a base station 110 is in communication with a UE 120 in a wireless network 100, in accordance with various aspects of the present disclosure. The base station 110 can be equipped with T antennas 234a through 234t, and the UE 120 can be equipped with R antennas 252a through 252r, where in general T > 1 and R > 1.

[0044] ​At base station 110, a transmit processor 220 can receive data from a data source 212 for one or more UEs, select one or more modulation and coding schemes (MCSs) for each UE based at least in part on channel quality indicators (CQIs) received from the UE, process (e.g., encode and modulate) the data for each UE based at least in part on the MCS(s) selected for the UE, and provide data symbols for all UEs. Transmit processor 220 can also process system information (e.g., for semi-static resource partitioning information (SRPI)) and control information (e.g., CQI requests, grants, and / or upper layer signaling) and provide overhead symbols and control symbols. Transmit processor 220 can also generate reference symbols for reference signals (e.g., a cell-specific reference signal (CRS) or a demodulation reference signal (DMRS)) and synchronization signals (e.g., a primary synchronization signal (PSS) or a secondary synchronization signal (SSS)). A transmit (TX) multiple-input multiple-output (MIMO) processor 230 can perform spatial processing (e.g., precoding) on the data symbols, the control symbols, the overhead symbols, and / or the reference symbols, if applicable, and can provide T output symbol streams to T modulators (MODs) 232a through 232t. Each modulator 232 can process a 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 upconvert) the output sample stream to obtain a downlink signal. T downlink signals from modulators 232a through 232t can be transmitted via T antennas 234a through 234t, respectively.

[0045] At the UE 120, the antennas 252a through 252r can receive the downlink signals from the base station 110 and / or other base stations and can provide received signals to the demodulators (DEMODs) 254a through 254r, respectively. Each demodulator 254 can condition (e.g., filter, amplify, downconvert, and digitize) a received signal to obtain input samples. Each demodulator 254 can further process the input samples (e.g., for OFDM) to obtain received symbols. A MIMO detector 256 can obtain received symbols from all R demodulators 254a through 254r, perform MIMO detection on the received symbols if applicable, and provide detected symbols. A receive processor 258 can process (e.g., demodulate and decode) the detected symbols, provide decoded data for the UE 120 to a data sink 260, and provide decoded control information and system information to a controller / processor 280. The term “controller / processor” can refer to one or more controllers, one or more processors, or combinations thereof. A channel processor can determine reference signal received power (RSRP) parameters, received signal strength indicator (RSSI) parameters, reference signal received quality (RSRQ) parameters, and / or channel quality indicator (CQI) parameters, among other examples. In some aspects, one or more components of UE 120 can be included in a housing 284.

[0046] The network controller 130 can include a communication unit 294, a controller / processor 290, and a memory 292. The network controller 130 can include, for example, one or more devices in a core network. The network controller 130 can communicate with the base station 110 via the communication unit 294.

[0047] Antennas (e.g., antennas 234a through 234t and / or antennas 252a through 252r) can include or be included in one or more antenna panels, antenna groups, antenna element sets, and / or antenna arrays, among other examples. An antenna panel, antenna group, antenna element set, and / or antenna array can include one or more antenna elements. An antenna panel, antenna group, antenna element set, and / or antenna array can include a set of co-planar antenna elements and / or a set of non-co-planar antenna elements. An antenna panel, antenna group, antenna element set, and / or antenna array can include antenna elements within a single housing and / or antenna elements within multiple housings. An antenna panel, antenna group, antenna element set, and / or antenna array can include one or more antenna elements coupled to one or more transmit and / or receive components (such as one or more components of a transceiver 264). Figure 2 An antenna panel, antenna group, antenna element set, and / or antenna array can include one or more antenna elements coupled to one or more transmit and / or receive components (such as one or more components of a transceiver 264).

[0048] On the uplink, at UE 120, a transmit processor 264 can receive and process data from a data source 262 and control information (e.g., for reports comprising RSRP, RSSI, RSRQ, and / or CQI) from controller / processor 280. Transmit processor 264 can also generate reference symbols for one or more reference signals. The symbols from transmit processor 264 can be precoded by a TX MIMO processor 266 if applicable, further processed by modulators 254a through 254r (e.g., for DFT-s-OFDM or CP-OFDM), and transmitted to base station 110. In some aspects, a modulator and a demodulator (e.g., MOD / DEMOD 254) of the UE 120 can be included in a modem of the UE 120. In some aspects, the UE 120 includes a transceiver. The transceiver can include any combination of antennas 252, modulators and / or demodulators 254, MIMO detector 256, receive processor 258, transmit processor 264, and / or TX MIMO processor 266. The transceiver can be used by a processor (e.g., controller / processor 280) and memory 282 to perform any of the methods described herein, for example, as described with reference to FIGS. 1-8. Figures 4-9

[0049] At base station 110, the uplink signals from UE 120 and other UEs can be received by antennas 234, processed by demodulators 232, detected by a MIMO detector 236 if applicable, and further processed by a receive processor 238 to obtain decoded data and control information sent by UE 120. Receive processor 238 can provide the decoded data to a data sink 239 and the decoded control information to controller / processor 240. Base station 110 can include communication unit 244 and communicate to network controller 130 via communication unit 244. Base station 110 can include a scheduler 246 to schedule UEs 120 for downlink and / or uplink communications. In some aspects, a modulator and a demodulator (e.g., MOD / DEMOD 232) of the base station 110 can be included in a modem of the base station 110. In some aspects, the base station 110 includes a transceiver. The transceiver can include any combination of antennas 234, modulators and / or demodulators 232, MIMO detector 236, receive processor 238, transmit processor 220, and / or TX MIMO processor 230. The transceiver can be used by a processor (e.g., controller / processor 240) and memory 242 to perform any of the methods described herein, for example, as described with reference to FIGS. 1-8. Figures 4-9

[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 that can execute or direct, for example Figure 8 The process 800 Figure 9 The operation of process 900 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, 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), the one or more processors, UE 120, and / or base station 110 may cause the one or more processors, UE 120, and / or base station 110 to perform or direct, for example... Figure 8 The process 800 Figure 9 The process 900, and / or other processes as 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 mapping a HARQ-ACK feedback, including a first HARQ-ACK bit associated with high priority and a second HARQ-ACK bit associated with low priority, to a sequence cyclic shift value that provides reliability against inequality between the first and second HARQ-ACK bits; and / or means for transmitting the HARQ-ACK feedback to a base station via PUCCH format 0. 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 a first HARQ-ACK bit associated with a high priority using a first symbol and a second HARQ-ACK bit associated with a low priority using a second symbol without using frequency hopping.

[0053] In some aspects, the UE includes means for transmitting, using a first symbol, a first HARQ-ACK bit associated with a high priority and means for transmitting, using a second symbol, the first HARQ-ACK bit associated with the high priority and a second HARQ-ACK bit associated with a low priority.

[0054] In some aspects, the UE includes means for transmitting, using a first symbol, a first HARQ-ACK bit associated with a high priority and a second HARQ-ACK bit associated with a low priority and means for transmitting, using a second symbol, the first HARQ-ACK bit associated with the high priority and the second HARQ-ACK bit associated with the low priority.

[0055] In some aspects, the UE includes means for transmitting, using a first symbol, a first HARQ-ACK bit associated with a high priority and means for transmitting, using a second symbol, the first HARQ-ACK bit associated with the high priority and a second HARQ-ACK bit associated with a low priority.

[0056] In some aspects, a base station (e.g., base station 110) includes means for transmitting downlink data to a UE and / or means for receiving HARQ-ACK feedback from the UE via PUCCH format 0 based at least in part on the downlink data, where the HARQ-ACK feedback includes a first HARQ-ACK bit associated with a high priority and a second HARQ-ACK bit associated with a low priority, and where the HARQ-ACK feedback is mapped to a sequence cyclic shift value that provides unequal reliability between the first HARQ-ACK bit and the second HARQ-ACK bit. Means for a base station to perform operations described herein can include, for example, one or more of transmit processor 220, TX MIMO processor 230, modulator 232, antenna 234, demodulator 232, MIMO detector 236, receive processor 238, controller / processor 240, memory 242, or scheduler 246.

[0057] In some aspects, the base station includes means for receiving, using a first symbol, a first HARQ-ACK bit associated with a high priority and means for receiving, using a second symbol, a second HARQ-ACK bit associated with a low priority, without using frequency hopping.

[0058] In some aspects, the base station includes means for receiving, using a first symbol, a first HARQ-ACK bit associated with a high priority and means for receiving, using a second symbol, the first HARQ-ACK bit associated with the high priority and a second HARQ-ACK bit associated with a low priority.

[0059] In some aspects, the base station includes means for receiving, using a first symbol, a first HARQ-ACK bit associated with a high priority and a second HARQ-ACK bit associated with a low priority and means for receiving, using a second symbol, the first HARQ-ACK bit associated with the high priority and the second HARQ-ACK bit associated with the low priority.

[0060] In some aspects, the base station includes means for receiving, using a first symbol, a first HARQ-ACK bit associated with a high priority and means for receiving, using a second symbol, the first HARQ-ACK bit associated with the high priority and a second HARQ-ACK bit associated with a low priority.

[0061] Although Figure 2 The blocks in FIG. 7 are illustrated as distinct components, but the functionality described above in relation to these blocks can be implemented in a single hardware, software, or combined component or a combination of various components. For example, the functionality described in relation 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.

[0062] As indicated above, Figure 2 are provided as examples. Other examples can differ from what is described in relation to Figure 2 FIG. 6.

[0063] HARQ-ACK feedback including a two-bit HARQ-ACK value can be transmitted in PUCCH format 0. The two-bit HARQ-ACK value can include a first HARQ-ACK bit and a second HARQ-ACK bit. The first HARQ-ACK bit and the second HARQ-ACK bit can be associated with a same priority level. In other words, the first HARQ-ACK bit can be associated with a same priority as compared to the second HARQ-ACK bit. The two-bit HARQ-ACK value can also be referred to as an acknowledgement / negative acknowledgement (A / N) value.

[0064] HARQ-ACK feedback can be transmitted in the time domain via PUCCH format 0 using a sequence (e.g., a base sequence) with a cyclic shift. The cyclic shift can be based at least in part on information bits associated with the HARQ-ACK feedback.

[0065] Figure 3 is a diagram illustrating an example 300 of HARQ-ACK feedback in accordance with various aspects of the present disclosure.

[0066] As Figure 3 indicated in the middle, when the two-bit HARQ-ACK value equals {0, 0} (e.g., the first HARQ-ACK bit equals {0} and the second HARQ-ACK bit equals {1}), the cyclic shift applied to the sequence can equal 0. When the two-bit HARQ-ACK value equals {0, 1} (e.g., the first HARQ-ACK bit equals {0} and the second HARQ-ACK bit equals {1}), the cyclic shift applied to the sequence can equal 3. When the two-bit HARQ-ACK value equals {1, 1} (e.g., the first HARQ-ACK bit equals {1} and the second HARQ-ACK bit equals {1}), the cyclic shift applied to the sequence can equal 6. When the two-bit HARQ-ACK value equals {1, 0} (e.g., the first HARQ-ACK bit equals {1} and the second HARQ-ACK bit equals {0}), the cyclic shift applied to the sequence can equal 9.

[0067] The cyclic shift applied to the sequence can equal 0, 3, 6, or 9 depending on the two-bit HARQ-ACK value. The distance between some pairs of cyclic shift values can be equal to each other. For example, the distance between the cyclic shift equal to 0 and the cyclic shift equal to 3 is three, the distance between the cyclic shift equal to 3 and the cyclic shift equal to 6 is three, and so on. The distance between cyclic shift values can also refer to the difference between cyclic shift values. For example, both the distance and the difference between the cyclic shift equal to 0 and the cyclic shift equal to 3 is three.

[0068] As indicated above, Figure 3 is provided as an example. Other examples can differ from what is described with respect to Figure 3 without departing from the spirit of the disclosure.

[0069] HARQ-ACK feedback including two HARQ-ACK bits with the same priority can be transmitted using PUCCH format 0. The two HARQ-ACK bits can be mapped to cyclic shift values (e.g., 0, 3, 6, or 9), where the cyclic shift values can be equally spaced apart. The equal spacing between some pairs of cyclic shift values can correspond to equal priorities or undefined priorities between different HARQ-ACK bits in the HARQ-ACK feedback. However, this approach does not apply to HARQ-ACK feedback carrying two HARQ-ACK bits with unequal priorities. The HARQ-ACK feedback can include a first HARQ-ACK bit associated with a high priority and a second HARQ-ACK bit associated with a low priority. The HARQ-ACK feedback can include the first HARQ-ACK bit multiplexed with the second HARQ-ACK bit. If equal spacing between some pairs of cyclic shift values is to be used, the first HARQ-ACK bit associated with the high priority can be inappropriately given the same priority as the second HARQ-ACK bit associated with the low priority.

[0070] In various aspects of the technology and apparatuses described herein, a UE can map HARQ-ACK feedback including a first HARQ-ACK bit associated with a high priority and a second HARQ-ACK bit associated with a low priority to a sequence cyclic shift value that provides unequal reliability between the first HARQ-ACK bit and the second HARQ-ACK bit. The UE can transmit the HARQ-ACK feedback to a base station via PUCCH format 0.

[0071] Figure 4 FIG. 4 is a diagram illustrating an example 400 associated with priority-based HARQ-ACK feedback, in accordance with various aspects of the present disclosure.

[0072] A UE (e.g., UE 120) can transmit HARQ-ACK feedback including a two-bit HARQ-ACK value to a base station (e.g., base station 110) in PUCCH format 0. The two-bit HARQ-ACK value can include a first HARQ-ACK bit associated with a high priority and a second HARQ-ACK bit associated with a low priority. In other words, the first HARQ-ACK bit can be associated with a different priority than the second HARQ-ACK bit. The first HARQ-ACK bit associated with the high priority can correspond to a most significant bit (MSB), and the second HARQ-ACK bit associated with the low priority can correspond to a least significant bit (LSB). The two-bit HARQ-ACK value can also be referred to as an acknowledgement / negative acknowledgement (A / N) value.

[0073] HARQ-ACK feedback can be transmitted via PUCCH format 0 in the time domain using a sequence with a cyclic shift. The cyclic shift can be based at least in part on information bits associated with the HARQ-ACK feedback.

[0074] As shown in Figure 4 When the two-bit HARQ-ACK value is equal to {0, 0} (e.g., the first HARQ-ACK bit associated with a high priority (HP) is equal to {0} and the second HARQ-ACK bit associated with a low priority (LP) is equal to {1}), the cyclic shift applied to the sequence can be equal to 0. When the two-bit HARQ-ACK value is equal to {0, 1} (e.g., the first HARQ-ACK bit associated with a high priority is equal to {0} and the second HARQ-ACK bit associated with a low priority is equal to {1}), the cyclic shift applied to the sequence can be equal to 3. When the two-bit HARQ-ACK value is equal to {1, 1} (e.g., the first HARQ-ACK bit associated with a high priority is equal to {1} and the second HARQ-ACK bit associated with a low priority is equal to {1}), the cyclic shift applied to the sequence can be equal to 6. When the two-bit HARQ-ACK value is equal to {1, 0} (e.g., the first HARQ-ACK bit associated with a high priority is equal to {1} and the second HARQ-ACK bit associated with a low priority is equal to {0}), the cyclic shift applied to the sequence can be equal to 9.

[0075] The cyclic shift applied to the sequence can be equal to 0, 3, 6, or 9 depending on the two-bit HARQ-ACK value. The cyclic shift can be selected from 12 possible cyclic shift values. The distance between some pairs of cyclic shift values can be equal to each other. For example, the distance between a cyclic shift equal to 0 and a cyclic shift equal to 3 is three, the distance between a cyclic shift equal to 3 and a cyclic shift equal to 6 is three, and so on.

[0076] In some aspects, the equal distance between some pairs of cyclic shift values can correspond to an equal reliability between the first HARQ-ACK bit associated with a high priority and the second HARQ-ACK bit associated with a low priority. In other words, the reliability of the first HARQ-ACK bit can be the same as the reliability of the second HARQ-ACK bit, which can be inappropriate because the first HARQ-ACK bit is associated with a high priority and the second HARQ-ACK bit is associated with a low priority.

[0077] In some aspects, a relationship between equal distances between some pairs of cyclic shift values and equal reliability between HARQ-ACK bits can be based at least in part on a likelihood of decoding error at the base station. When possible cyclic shift values corresponding to HARQ-ACK values (e.g., {0, 0}, {0, 1}, {1, 1}, or {1, 0}) are equally spaced apart, a likelihood of the base station (e.g., due to a noisy channel) incorrectly decoding the HARQ-ACK values can be equal to a likelihood of decoding error associated with other HARQ-ACK values. In other words, due to the equal spacing between cyclic shift values, a likelihood of successfully decoding a first HARQ-ACK bit associated with a high priority can be the same as a likelihood of successfully decoding a second HARQ-ACK bit associated with a low priority.

[0078] As indicated above, Figure 4 are provided by way of example. Other examples can differ from those described Figure 4 without departing from the spirit of the disclosure.

[0079] Figure 5 FIG. 5 is a diagram illustrating an example 500 associated with priority-based HARQ-ACK feedback, in accordance with various aspects of the present disclosure.

[0080] A UE (e.g., UE 120) can transmit, in PUCCH format 0, HARQ-ACK feedback including a two-bit HARQ-ACK value to a base station (e.g., base station 110). The two-bit HARQ-ACK value can include a first HARQ-ACK bit associated with a high priority and a second HARQ-ACK bit associated with a low priority. The first HARQ-ACK bit associated with the high priority can correspond to a MSB, and the second HARQ-ACK bit associated with the low priority can correspond to a LSB.

[0081] The HARQ-ACK feedback can be transmitted via PUCCH format 0 using a sequence with a cyclic shift in the time domain. The cyclic shift can be based at least in part on information bits associated with the HARQ-ACK feedback.

[0082] In some aspects, the HARQ-ACK feedback can be a first HARQ-ACK value including a high priority bit of {0} and a low priority bit of {0}, and the first HARQ-ACK value can be associated with a first sequence cyclic shift value. The HARQ-ACK feedback can be a second HARQ-ACK value including a high priority bit of {0} and a low priority bit of {1}, and the second HARQ-ACK value can be associated with a second sequence cyclic shift value. The HARQ-ACK feedback can be a third HARQ-ACK value including a high priority bit of {1} and a low priority bit of {1}, and the third HARQ-ACK value can be associated with a third sequence cyclic shift value. The HARQ-ACK feedback can be a fourth HARQ-ACK value including a high priority bit of {1} and a low priority bit of {0}, and the fourth HARQ-ACK value can be associated with a fourth sequence cyclic shift value.

[0083] In some aspects, a distance between the first sequence cyclic shift value associated with a high priority bit of “0” and the third sequence cyclic shift value associated with a high priority bit of “1” can be set to N / 2 to reduce a likelihood of decoding error at the base station for the first HARQ-ACK bit associated with high priority, where N is a total number of available cyclic shift values associated with a sequence of PUCCH format 0 (e.g., 12 available cyclic shift values ranging from 0 to 11). In some aspects, a distance between the second sequence cyclic shift value associated with a high priority bit of “0” and the fourth sequence cyclic shift value associated with a high priority bit of “1” can be set to N / 2 to reduce a likelihood of decoding error at the base station for the first HARQ-ACK bit associated with high priority.

[0084] In some aspects, a distance between the first sequence cyclic shift value associated with a high priority bit of “0” and a low priority bit of “0” and the second sequence cyclic shift value associated with a high priority bit of “0” and a low priority bit of “1” can be set to less than N / 4. In some aspects, a distance between the third sequence cyclic shift value associated with a high priority bit of “1” and a low priority bit of “1” and the fourth sequence cyclic shift value associated with a high priority bit of “1” and a low priority bit of “0” can be set to less than N / 4.

[0085] In some aspects, a distance between a first sequence cyclic shift value associated with a high priority bit of "0" and a low priority bit of "0" and a fourth sequence cyclic shift value associated with a high priority bit of "1" and a low priority bit of "0" can be set to be less than N / 4. In some aspects, a distance between a second sequence cyclic shift value associated with a high priority bit of "0" and a low priority bit of "1" and a third sequence cyclic shift value associated with a high priority bit of "1" and a low priority bit of "1" can be set to be greater than N / 4.

[0086] In Figure 5 the example shown in FIG. 6, when the two-bit HARQ-ACK value is equal to {0, 0}, the cyclic shift applied to the sequence can be equal to 0. When the two-bit HARQ-ACK value is equal to {0, 1}, the cyclic shift applied to the sequence can be equal to 2. When the two-bit HARQ-ACK value is equal to {1, 1}, the cyclic shift applied to the sequence can be equal to 6. When the two-bit HARQ-ACK value is equal to {1, 0}, the cyclic shift applied to the sequence can be equal to 8.

[0087] In this example, the cyclic shift applied to the sequence can be equal to 0, 2, 6, or 8 depending on the two-bit HARQ-ACK value. For example, the distance between the cyclic shift equal to 0 and the cyclic shift equal to 2 is two, and the distance between the cyclic shift equal to 2 and the cyclic shift equal to 6 is four. In another example, the cyclic shift applied to the sequence can be equal to 0, 1, 6, or 7 depending on the two-bit HARQ-ACK value.

[0088] In some aspects, unequal spacing between some pairs of cyclic shift values can correspond to unequal reliability between a first HARQ-ACK bit associated with a high priority and a second HARQ-ACK bit associated with a low priority. In other words, the reliability of the first HARQ-ACK bit can be greater than the reliability of the second HARQ-ACK bit, which can be appropriate because the first HARQ-ACK bit is associated with a high priority and the second HARQ-ACK bit is associated with a low priority.

[0089] In some aspects, a relationship between unequal distances between some pairs of cyclic shift values and unequal reliabilities between HARQ-ACK bits can be based at least in part on a likelihood of a decoding error at the base station. When possible cyclic shift values corresponding to HARQ-ACK values (e.g., {0, 0}, {0, 1}, {1, 1}, or {1, 0}) are unequally spaced, a likelihood of the base station (e.g., due to a noisy channel) incorrectly decoding a HARQ-ACK value can not be equal to a likelihood of a decoding error associated with other HARQ-ACK values. In other words, due to unequal spacing between some cyclic shift values, a likelihood of successfully decoding a first HARQ-ACK bit associated with a high priority can be different than a likelihood of successfully decoding a second HARQ-ACK bit associated with a low priority.

[0090] As an example, with respect to cyclic shift value 0 corresponding to HARQ-ACK value {0, 0} and cyclic shift value 2 corresponding to HARQ-ACK value {0, 1}, a decoding error (e.g., due to noise) can cause the base station to improperly apply cyclic shift value 0 instead of cyclic shift value 2, or vice versa. However, in both of these scenarios, a first HARQ-ACK bit associated with a high priority is {0}, and thus the improper cyclic shift value can not affect the decoded value associated with the first HARQ-ACK bit. A second HARQ-ACK bit associated with a low priority can be {0} or {1}, depending on the cyclic shift value, and cyclic shift distance two can provide a lower reliability for the second HARQ-ACK bit associated with the low priority than cyclic shift distance three.

[0091] As another example, with respect to cyclic shift value 2 corresponding to HARQ-ACK value {0, 1} and cyclic shift value 6 corresponding to HARQ-ACK value {1, 1}, a decoding error (e.g., due to noise) can cause the base station to improperly apply cyclic shift value 2 instead of cyclic shift value 6, or vice versa. However, in both of these scenarios, a second HARQ-ACK bit associated with a low priority is {1}, and thus the improper cyclic shift value can not affect the decoded value associated with the second HARQ-ACK bit. A first HARQ-ACK bit associated with a high priority can be {0} or {1}, depending on the cyclic shift value, and cyclic shift distance four can provide a higher reliability for the first HARQ-ACK bit associated with the high priority than cyclic shift distance three. In other words, due to the cyclic shift distance being four, the base station can be less likely to incorrectly decode the first HARQ-ACK bit associated with the high priority (e.g., interpret {0} as {1}, or vice versa), thereby improving the reliability of the first HARQ-ACK bit.

[0092] In some aspects, a common cyclic shift offset can be applied to cyclic shift values corresponding to HARQ-ACK values. The common cyclic shift offset can be applied initially to a cyclic shift value to rotate the cyclic shift value by the common cyclic shift offset.

[0093] In the example shown in Figure 5 , a common cyclic shift offset (e.g., 1) can be applied to a cyclic shift value of 0 corresponding to a two-bit HARQ-ACK value of {0, 0}, which would result in the cyclic shift value being 1. A common cyclic shift offset (e.g., 1) can be applied to a cyclic shift value of 2 corresponding to a two-bit HARQ-ACK value of {0, 1}, which would result in the cyclic shift value being 3. A common cyclic shift offset (e.g., 1) can be applied to a cyclic shift value of 6 corresponding to a two-bit HARQ-ACK value of {1, 1}, which would result in the cyclic shift value being 7. A common cyclic shift offset (e.g., 1) can be applied to a cyclic shift value of 8 corresponding to a two-bit HARQ-ACK value of {1, 0}, which would result in the cyclic shift value being 9.

[0094] As indicated above, Figure 5 is provided by way of example. Other examples can differ from what is described with respect to at least the following Figure 5 .

[0095] Figure 6 is a diagram illustrating an example 600 associated with priority-based HARQ-ACK feedback, in accordance with various aspects of the present disclosure.

[0096] A UE (e.g., the UE 120) can transmit, to a base station (e.g., the base station 110), HARQ-ACK feedback including a two-bit HARQ-ACK value in a PUCCH format 0. The two-bit HARQ-ACK value can include a first HARQ-ACK bit associated with a low priority and a second HARQ-ACK bit associated with a high priority. The first HARQ-ACK bit associated with the low priority can correspond to a MSB, and the second HARQ-ACK bit associated with the high priority can correspond to a LSB.

[0097] The HARQ-ACK feedback can be transmitted via the PUCCH format 0 using a sequence with a cyclic shift in a time domain. The cyclic shift can be based at least in part on information bits associated with the HARQ-ACK feedback.

[0098] In some aspects, the HARQ-ACK feedback can be a first HARQ-ACK value including a low priority bit of {0} and a high priority bit of {0}, and the first HARQ-ACK value can be associated with a first sequence cyclic shift value. The HARQ-ACK feedback can be a second HARQ-ACK value including a low priority bit of {0} and a high priority bit of {1}, and the second HARQ-ACK value can be associated with a second sequence cyclic shift value. The HARQ-ACK feedback can be a third HARQ-ACK value including a low priority bit of {1} and a high priority bit of {1}, and the third HARQ-ACK value can be associated with a third sequence cyclic shift value. The HARQ-ACK feedback can be a fourth HARQ-ACK value including a low priority bit of {1} and a high priority bit of {0}, and the fourth HARQ-ACK value can be associated with a fourth sequence cyclic shift value.

[0099] In some aspects, a distance between the first sequence cyclic shift value associated with a high priority bit of “0” and the third sequence cyclic shift value associated with a high priority bit of “1” can be set to N / 2 to reduce a likelihood of decoding error of the first HARQ-ACK bit associated with high priority at the base station. In some aspects, a distance between the second sequence cyclic shift value associated with a high priority bit of “1” and the fourth sequence cyclic shift value associated with a high priority bit of “0” can be set to N / 2 to reduce a likelihood of decoding error of the first HARQ-ACK bit associated with high priority at the base station.

[0100] In some aspects, a distance between the first sequence cyclic shift value associated with a high priority bit of “0” and a low priority bit of “0” and the second sequence cyclic shift value associated with a high priority bit of “1” and a low priority bit of “0” can be set to less than N / 4. In some aspects, a distance between the third sequence cyclic shift value associated with a high priority bit of “1” and a low priority bit of “1” and the fourth sequence cyclic shift value associated with a high priority bit of “0” and a low priority bit of “1” can be set to less than N / 4.

[0101] In some aspects, a distance between a first sequence cyclic shift value associated with a high priority bit of "0" and a low priority bit of "0" and a fourth sequence cyclic shift value associated with a high priority bit of "0" and a low priority bit of "1" can be set to be less than N / 4. In some aspects, a distance between a second sequence cyclic shift value associated with a high priority bit of "1" and a low priority bit of "0" and a third sequence cyclic shift value associated with a high priority bit of "1" and a low priority bit of "1" can be set to be greater than N / 4.

[0102] In Figure 6 the example shown, when the two-bit HARQ-ACK value is equal to {0, 0} (e.g., the first HARQ-ACK bit associated with the low priority is equal to {0} and the second HARQ-ACK bit associated with the high priority is equal to {1}), the cyclic shift applied to the sequence can be equal to 0. When the two-bit HARQ-ACK value is equal to {0, 1} (e.g., the first HARQ-ACK bit associated with the low priority is equal to {0} and the second HARQ-ACK bit associated with the high priority is equal to {1}), the cyclic shift applied to the sequence can be equal to 4. When the two-bit HARQ-ACK value is equal to {1, 1} (e.g., the first HARQ-ACK bit associated with the low priority is equal to {1} and the second HARQ-ACK bit associated with the high priority is equal to {1}), the cyclic shift applied to the sequence can be equal to 6. When the two-bit HARQ-ACK value is equal to {1, 0} (e.g., the first HARQ-ACK bit associated with the low priority is equal to {1} and the second HARQ-ACK bit associated with the high priority is equal to {0}), the cyclic shift applied to the sequence can be equal to 10.

[0103] In Figure 6 the example shown in FIG. 15, a common cyclic shift offset (e.g., 1) can be applied to the cyclic shift value of 0 corresponding to the two-bit HARQ-ACK value of {0, 0}, which would result in a cyclic shift value of 1. A common cyclic shift offset (e.g., 1) can be applied to the cyclic shift value of 4 corresponding to the two-bit HARQ-ACK value of {0, 1}, which would result in a cyclic shift value of 5. A common cyclic shift offset (e.g., 1) can be applied to the cyclic shift value of 6 corresponding to the two-bit HARQ-ACK value of {1, 1}, which would result in a cyclic shift value of 7. A common cyclic shift offset (e.g., 1) can be applied to the cyclic shift value of 10 corresponding to the two-bit HARQ-ACK value of {1, 0}, which would result in a cyclic shift value of 11.

[0104] As indicated above, Figure 6 are provided by way of example. Other examples can differ from what is described with respect to at least one of the following.Figure 6 The described examples.

[0105] Figure 7 is a diagram illustrating an example 700 associated with priority-based HARQ-ACK feedback, in accordance with various aspects of the present disclosure.

[0106] As shown by reference number 702, the UE can transmit HARQ-ACK feedback to the base station via PUCCH format 0 without using frequency hopping. The HARQ-ACK feedback can include a first HARQ-ACK bit associated with a high priority and a second HARQ-ACK bit associated with a low priority. The UE can transmit the first HARQ-ACK bit associated with the high priority using a first symbol. The UE can transmit the second HARQ-ACK bit associated with the low priority using a second symbol. The first symbol and the second symbol can be OFDM symbols. The first HARQ-ACK bit can be one bit and the second HARQ-ACK bit can be one bit. As an example, the first HARQ-ACK bit can be associated with a cyclic shift value selected from {0, 6} and the second HARQ-ACK bit can be associated with a cyclic shift value selected from {0, 6}.

[0107] As shown by reference number 704, the UE can transmit HARQ-ACK feedback to the base station via PUCCH format 0 without using frequency hopping. The HARQ-ACK feedback can include a first HARQ-ACK bit associated with a high priority and a second HARQ-ACK bit associated with a low priority. The UE can transmit the first HARQ-ACK bit associated with the high priority using a first symbol, which can occupy one bit. The UE can transmit the first HARQ-ACK bit associated with the high priority and the second HARQ-ACK bit associated with the low priority using a second symbol, which can occupy two bits. As an example, the first HARQ-ACK bit transmitted using the first symbol can be associated with a cyclic shift value selected from {0, 6}. As another example, the first HARQ-ACK bit and the second HARQ-ACK bit transmitted using the second symbol can be associated with a cyclic shift value selected from {0, 2, 6, 8} or {0, 1, 6, 7}, which can correspond to unequal distances between some pairs of cyclic shift values.

[0108] As shown by reference number 706, the UE can transmit HARQ-ACK feedback to the base station via PUCCH format 0 using frequency hopping. The HARQ-ACK feedback can include a first HARQ-ACK bit associated with a high priority and a second HARQ-ACK bit associated with a low priority. The UE can transmit the first HARQ-ACK bit associated with the high priority and the second HARQ-ACK bit associated with the low priority using a first symbol, which can occupy two bits. The UE can transmit the first HARQ-ACK bit and the second HARQ-ACK bit using a first frequency band. As an example, the first HARQ-ACK bit and the second HARQ-ACK bit transmitted using the first symbol can be associated with a cyclic shift value selected from {0, 2, 6, 8} or {0, 1, 6, 7}, which can correspond to unequal distances between some pairs of cyclic shift values.

[0109] In addition, the UE can transmit the first HARQ-ACK bit associated with the high priority and the second HARQ-ACK bit associated with the low priority using a second symbol, which can occupy two bits. The UE can transmit the first HARQ-ACK bit and the second HARQ-ACK bit using a second frequency band. As an example, the first HARQ-ACK bit and the second HARQ-ACK bit transmitted using the second symbol can be associated with a cyclic shift value selected from {0, 2, 6, 8} or {0, 1, 6, 7}, which can correspond to unequal distances between some pairs of cyclic shift values.

[0110] As shown by reference number 708, the UE can transmit HARQ-ACK feedback to the base station via PUCCH format 0 using frequency hopping. The HARQ-ACK feedback can include a first HARQ-ACK bit associated with a high priority and a second HARQ-ACK bit associated with a low priority. The UE can transmit the first HARQ-ACK bit associated with the high priority using a first symbol, which can occupy one bit. The UE can transmit the first HARQ-ACK bit using a first frequency band. As an example, the first HARQ-ACK bit transmitted using the first symbol can be associated with a cyclic shift value selected from {0, 6}.

[0111] Furthermore, the UE can use a second symbol to transmit a first HARQ-ACK bit associated with high priority and a second HARQ-ACK bit associated with low priority; the second symbol can occupy two bits. The UE can use a second frequency band to transmit the first and second HARQ-ACK bits. As an example, the first and second HARQ-ACK bits transmitted using the second symbol can be associated with cyclic shift values ​​selected from {0,2,6,8} or {0,1,6,7}, which can correspond to unequal distances between some pairs of cyclic shift values.

[0112] As indicated above, Figure 7 This is provided as an example. Other examples may differ from the one provided. Figure 7 The example described.

[0113] Figure 8 This is a diagram illustrating, for example, an example procedure 800 performed by a UE according to various aspects of this disclosure. Example procedure 800 is an example in which a UE (e.g., UE 120) performs operations associated with priority-based HARQ-ACK feedback.

[0114] like Figure 8 As shown, in some aspects, process 800 may include: mapping a HARQ-ACK feedback, including a first HARQ-ACK bit associated with high priority and a second HARQ-ACK bit associated with low priority, to a sequence cyclic shift value that provides reliability that the first HARQ-ACK bit and the second HARQ-ACK bit are not equal (box 810). For example, the UE (e.g., using...) Figure 10 The mapping component 1008 described herein can map HARQ-ACK feedback, including a first HARQ-ACK bit associated with high priority and a second HARQ-ACK bit associated with low priority, to a sequence cyclic shift value that provides reliability that the first HARQ-ACK bit and the second HARQ-ACK bit are not equal, as described above.

[0115] As in Figure 8 As further illustrated, in some aspects, process 800 may include: transmitting the HARQ-ACK feedback to the base station via PUCCH format 0 (box 820). For example, the UE (e.g., using...) Figure 10 The transmission component 1004 described herein can transmit the HARQ-ACK feedback to the base station via PUCCH format 0, as described above.

[0116] Process 800 can include additional aspects, such as any single aspect or any combination of aspects described below and / or in connection with one or more other processes described elsewhere herein.

[0117] In a first aspect, the HARQ-ACK feedback is a first HARQ-ACK value including a high priority bit of {0} and a low priority bit of {0} and the first HARQ-ACK value is associated with a first sequence cyclic shift value; the HARQ-ACK feedback is a second HARQ-ACK value including a high priority bit of {0} and a low priority bit of {1} and the second HARQ-ACK value is associated with a second sequence cyclic shift value; the HARQ-ACK feedback is a third HARQ-ACK value including a high priority bit of {1} and a low priority bit of {1} and the third HARQ-ACK value is associated with a third sequence cyclic shift value; or the HARQ-ACK feedback is a fourth HARQ-ACK value including a high priority bit of {1} and a low priority bit of {0} and the fourth HARQ-ACK value is associated with a fourth sequence cyclic shift value.

[0118] In a second aspect, alone or in combination with the first aspect, a distance between the first sequence cyclic shift value associated with a high priority bit of {0} and the third sequence cyclic shift value associated with a high priority bit of {1} is set to N / 2 to reduce a likelihood of decoding error at the base station for the first HARQ-ACK bit associated with high priority, where N is a total number of available cyclic shift values associated with a sequence used to transmit the PUCCH format 0.

[0119] In a third aspect, alone or in combination with one or more of the first and second aspects, a distance between the second sequence cyclic shift value associated with a high priority bit of {0} and the fourth sequence cyclic shift value associated with a high priority bit of {1} is set to N / 2 to reduce a likelihood of decoding error at the base station for the first HARQ-ACK bit associated with high priority, where N is a total number of available cyclic shift values associated with a sequence used to transmit the PUCCH format 0.

[0120] In a fourth aspect, alone or in combination with one or more of the first through third aspects, a distance between the first sequence cyclic shift value associated with a high priority bit of {0} and a low priority bit of {0} and the second sequence cyclic shift value associated with a high priority bit of {0} and a low priority bit of {1} is set to less than N / 4, where N is a total number of available cyclic shift values associated with a sequence used to transmit the PUCCH format 0.

[0121] In a fifth aspect, alone or in combination with one or more of the first through fourth aspects, a distance between a third sequence cyclic shift value associated with a high priority bit of {1} and a low priority bit of {1} and a fourth sequence cyclic shift value associated with a high priority bit of {1} and a low priority bit of {0} is set to be less than N / 4, where N is a total number of available cyclic shift values associated with a sequence used to transmit a PUCCH format 0.

[0122] In a sixth aspect, alone or in combination with one or more of the first through fifth aspects, a distance between a first sequence cyclic shift value associated with a high priority bit of {0} and a low priority bit of {0} and a fourth sequence cyclic shift value associated with a high priority bit of {1} and a low priority bit of {0} is set to be greater than N / 4, where N is a total number of available cyclic shift values associated with a sequence used to transmit a PUCCH format 0.

[0123] In a seventh aspect, alone or in combination with one or more of the first through sixth aspects, a distance between a second sequence cyclic shift value associated with a high priority bit of {0} and a low priority bit of {1} and a third sequence cyclic shift value associated with a high priority bit of {1} and a low priority bit of {1} is set to be greater than N / 4, where N is a total number of available cyclic shift values associated with a sequence used to transmit a PUCCH format 0.

[0124] In an eighth aspect, alone or in combination with one or more of the first through seventh aspects, the first HARQ-ACK bit corresponds to a most significant bit and the second HARQ-ACK bit corresponds to a least significant bit.

[0125] In a ninth aspect, alone or in combination with one or more of the first through eighth aspects, the first HARQ-ACK bit corresponds to a least significant bit and the second HARQ-ACK bit corresponds to a most significant bit.

[0126] In a tenth aspect, alone or in combination with one or more of the first through ninth aspects, transmitting the HARQ-ACK feedback via a PUCCH format 0 includes transmitting a first HARQ-ACK bit associated with a high priority using a first symbol and a second HARQ-ACK bit associated with a low priority using a second symbol without using frequency hopping.

[0127] In a twelfth aspect, alone or in combination with one or more of the first through eleventh aspects, transmitting the HARQ-ACK feedback via PUCCH format 0 includes transmitting the HARQ-ACK feedback using frequency hopping, transmitting, using a first symbol, first HARQ-ACK bits associated with a high priority and second HARQ-ACK bits associated with a low priority, and transmitting, using a second symbol, the first HARQ-ACK bits associated with the high priority and the second HARQ-ACK bits associated with the low priority.

[0128] In a twelfth aspect, alone or in combination with one or more of the first through eleventh aspects, transmitting the HARQ-ACK feedback via PUCCH format 0 includes transmitting the HARQ-ACK feedback using frequency hopping, transmitting, using a first symbol, first HARQ-ACK bits associated with a high priority and second HARQ-ACK bits associated with a low priority, and transmitting, using a second symbol, the first HARQ-ACK bits associated with the high priority and the second HARQ-ACK bits associated with the low priority.

[0129] In a twelfth aspect, alone or in combination with one or more of the first through eleventh aspects, transmitting the HARQ-ACK feedback via PUCCH format 0 includes transmitting the HARQ-ACK feedback using frequency hopping, transmitting, using a first symbol, first HARQ-ACK bits associated with a high priority and second HARQ-ACK bits associated with a low priority, and transmitting, using a second symbol, the first HARQ-ACK bits associated with the high priority and the second HARQ-ACK bits associated with the low priority.

[0130] Although Figure 8 Example blocks of the process 800 are illustrated, but in some aspects, the process 800 can include additional blocks, fewer blocks, different blocks, or differently arranged blocks than those depicted in Figure 8 In aspects, one or more of the blocks of the process 900 can be performed by a processor of a UE, such as the processor 312 of the UE 110.

[0131] Figure 9 FIG. 9 is a diagram illustrating an example process 900 performed, for example, by a base station, in accordance with various aspects of the present disclosure. Example process 900 is an example where the base station (e.g., base station 110) performs operations associated with priority-based HARQ-ACK feedback.

[0132] As Figure 9 In some aspects, the process 900 can include transmitting, to a UE, downlink data (block 910), as shown in Figure 11 For example, the base station (e.g., using transmission component 1104) can transmit, to a UE, downlink data, as described above.

[0133] As in Figure 9Further as shown in the example of FIG. 9, in some aspects, process 900 can include receiving, from the UE via PUCCH format 0, HARQ-ACK feedback based at least in part on the downlink data, wherein the HARQ-ACK feedback includes a first HARQ-ACK bit associated with a high priority and a second HARQ-ACK bit associated with a low priority, and wherein the HARQ-ACK feedback is mapped to a sequence cyclic shift value that provides unequal reliability between the first HARQ-ACK bit and the second HARQ-ACK bit (block 920). For example, the base station (e.g., using reception component 1102 as described in connection with FIG. 11) can receive, from the UE via PUCCH format 0, HARQ-ACK feedback based at least in part on the downlink data, wherein the HARQ-ACK feedback includes a first HARQ-ACK bit associated with a high priority and a second HARQ-ACK bit associated with a low priority, and wherein the HARQ-ACK feedback is mapped to a sequence cyclic shift value that provides unequal reliability between the first HARQ-ACK bit and the second HARQ-ACK bit, as described above. Figure 11 Further as shown in the example of FIG. 9, in some aspects, process 900 can include receiving, from the UE via PUCCH format 0, HARQ-ACK feedback based at least in part on the downlink data, wherein the HARQ-ACK feedback includes a first HARQ-ACK bit associated with a high priority and a second HARQ-ACK bit associated with a low priority, and wherein the HARQ-ACK feedback is mapped to a sequence cyclic shift value that provides unequal reliability between the first HARQ-ACK bit and the second HARQ-ACK bit (block 920). For example, the base station (e.g., using reception component 1102 as described in connection with FIG. 11) can receive, from the UE via PUCCH format 0, HARQ-ACK feedback based at least in part on the downlink data, wherein the HARQ-ACK feedback includes a first HARQ-ACK bit associated with a high priority and a second HARQ-ACK bit associated with a low priority, and wherein the HARQ-ACK feedback is mapped to a sequence cyclic shift value that provides unequal reliability between the first HARQ-ACK bit and the second HARQ-ACK bit, as described above.

[0134] Process 900 can include additional aspects, such as any single aspect or any combination of aspects described below and / or in connection with one or more other processes described elsewhere herein.

[0135] In a first aspect, the HARQ-ACK feedback is a first HARQ-ACK value including a high priority bit of {0} and a low priority bit of {0}, and the first HARQ-ACK value is associated with a first sequence cyclic shift value; the HARQ-ACK feedback is a second HARQ-ACK value including a high priority bit of {0} and a low priority bit of {1}, and the second HARQ-ACK value is associated with a second sequence cyclic shift value; the HARQ-ACK feedback is a third HARQ-ACK value including a high priority bit of {1} and a low priority bit of {1}, and the third HARQ-ACK value is associated with a third sequence cyclic shift value; or the HARQ-ACK feedback is a fourth HARQ-ACK value including a high priority bit of {1} and a low priority bit of {0}, and the fourth HARQ-ACK value is associated with a fourth sequence cyclic shift value.

[0136] In a second aspect, alone or in combination with the first aspect, a distance between the first sequence cyclic shift value associated with a high priority bit of {0} and the third sequence cyclic shift value associated with a high priority bit of {1} is set to N / 2 to reduce a likelihood of decoding error of the first HARQ-ACK bit associated with high priority at the base station, where N is a total number of available cyclic shift values associated with a sequence used to transmit the PUCCH format 0.

[0137] In a third aspect, alone or in combination with one or more of the first and second aspects, a distance between the second sequence cyclic shift value associated with a high priority bit of {0} and the fourth sequence cyclic shift value associated with a high priority bit of {1} is set to N / 2 to reduce a likelihood of decoding error of the first HARQ-ACK bit associated with high priority at the base station, where N is a total number of available cyclic shift values associated with a sequence used to transmit the PUCCH format 0.

[0138] In a fourth aspect, alone or in combination with one or more of the first through third aspects, a distance between the first sequence cyclic shift value associated with a high priority bit of {0} and a low priority bit of {0} and the second sequence cyclic shift value associated with a high priority bit of {0} and a low priority bit of {1} is set to less than N / 4, where N is a total number of available cyclic shift values associated with a sequence used to transmit the PUCCH format 0.

[0139] In a fifth aspect, alone or in combination with one or more of the first through fourth aspects, a distance between the third sequence cyclic shift value associated with a high priority bit of {1} and a low priority bit of {1} and the fourth sequence cyclic shift value associated with a high priority bit of {1} and a low priority bit of {0} is set to less than N / 4, where N is a total number of available cyclic shift values associated with a sequence used to transmit the PUCCH format 0.

[0140] In a sixth aspect, alone or in combination with one or more of the first through fifth aspects, a distance between the first sequence cyclic shift value associated with a high priority bit of {0} and a low priority bit of {0} and the fourth sequence cyclic shift value associated with a high priority bit of {1} and a low priority bit of {0} is set to greater than N / 4, where N is a total number of available cyclic shift values associated with a sequence used to transmit the PUCCH format 0.

[0141] In a seventh aspect, alone or in combination with one or more of the first through sixth aspects, a distance between a second sequence cyclic shift value associated with a high priority bit of {0} and a low priority bit of {1} and a third sequence cyclic shift value associated with a high priority bit of {1} and a low priority bit of {1} is set to be greater than N / 4, where N is a total number of available cyclic shift values associated with a sequence used to transmit the PUCCH format 0.

[0142] In an eighth aspect, alone or in combination with one or more of the first through seventh aspects, the first HARQ-ACK bit corresponds to a most significant bit and the second HARQ-ACK bit corresponds to a least significant bit.

[0143] In a ninth aspect, alone or in combination with one or more of the first through eighth aspects, the first HARQ-ACK bit corresponds to a least significant bit and the second HARQ-ACK bit corresponds to a most significant bit.

[0144] In a tenth aspect, alone or in combination with one or more of the first through ninth aspects, receiving the HARQ-ACK feedback via the PUCCH format 0 includes receiving a first HARQ-ACK bit associated with a high priority using a first symbol and receiving a second HARQ-ACK bit associated with a low priority using a second symbol without using frequency hopping.

[0145] In an eleventh aspect, alone or in combination with one or more of the first through tenth aspects, receiving the HARQ-ACK feedback via the PUCCH format 0 includes receiving a first HARQ-ACK bit associated with a high priority using a first symbol and receiving a first HARQ-ACK bit associated with a high priority and a second HARQ-ACK bit associated with a low priority using a second symbol without using frequency hopping.

[0146] In a twelfth aspect, alone or in combination with one or more of the first through eleventh aspects, receiving the HARQ-ACK feedback via the PUCCH format 0 includes receiving the HARQ-ACK feedback using frequency hopping, receiving a first HARQ-ACK bit associated with a high priority and a second HARQ-ACK bit associated with a low priority using a first symbol, and receiving a first HARQ-ACK bit associated with a high priority and a second HARQ-ACK bit associated with a low priority using a second symbol.

[0147] In a thirteenth aspect, alone or in combination with one or more of the first through twelfth aspects, receiving the HARQ-ACK feedback via the PUCCH format 0 includes receiving the HARQ-ACK feedback using frequency hopping, receiving first HARQ-ACK bits associated with a high priority using a first symbol, and receiving the first HARQ-ACK bits associated with the high priority and second HARQ-ACK bits associated with a low priority using a second symbol.

[0148] Although Figure 9 Example blocks of the process 900 are illustrated, but in some aspects, the process 900 can include Figure 9 additional blocks, fewer blocks, different blocks, or differently arranged blocks than pictured in Additionally or alternatively, two or more blocks of the process 900 can be performed in parallel.

[0149] Figure 10 is a block diagram of an example apparatus 1000 for wireless communication. The apparatus 1000 can be a UE, or a UE can include the apparatus 1000. In some aspects, the apparatus 1000 includes a reception component 1002 and a transmission component 1004, which can be in communication with one another (for example, via one or more buses and / or one or more other components). As shown, the apparatus 1000 can communicate with another apparatus 1006 (such as a UE, a base station, or another wireless communication device) using the reception component 1002 and the transmission component 1004. As further shown, the apparatus 1000 can include a mapping component 1008, among other examples.

[0150] In some aspects, the apparatus 1000 can be configured to perform one or more operations described herein with regard to the method 700. Additionally or alternatively, the apparatus 1000 can be configured to perform one or more processes described herein, such as process 800 of the apparatus 700. Figures 4-7 In some aspects, the apparatus 1000 and / or one or more components shown in Figure 8 may include one or more components of the UE described above in connection with Figure 10 In some aspects, one or more components of the apparatus 1000 and / or shown in Figure 2 may include one or more components of the UE described above in connection with Figure 10 In some aspects, one or more components of the apparatus 1000 and / or shown in Figure 2 may be implemented within one or more components of the UE described above in connection with

[0151] The reception component 1002 can receive communications, such as reference signals, control information, data communications, or a combination thereof, from the apparatus 1006. The reception component 1002 can provide received communications to one or more other components of the apparatus 1000. In some aspects, the reception component 1002 can perform signal processing on the received communications (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, de-mapping, equalization, interference cancellation, or decoding, among other examples), and can provide the processed signals to the one or more other components of the apparatus 1006. In some aspects, the reception component 1002 can include one or more antennas, a demodulator, a MIMO detector, a receive processor, a controller / processor, a memory, or a combination thereof, of the UE described above in connection with Fig. 2. Figure 2 The reception component 1002 can receive communications, such as reference signals, control information, data communications, or a combination thereof, from the apparatus 1006. The reception component 1002 can provide received communications to one or more other components of the apparatus 1000. In some aspects, the reception component 1002 can perform signal processing on the received communications (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, de-mapping, equalization, interference cancellation, or decoding, among other examples), and can provide the processed signals to the one or more other components of the apparatus 1006. In some aspects, the reception component 1002 can include one or more antennas, a demodulator, a MIMO detector, a receive processor, a controller / processor, a memory, or a combination thereof, of the UE described above in connection with Fig. 2.

[0152] The transmission component 1004 can transmit communications, such as reference signals, control information, data communications, or a combination thereof, to the apparatus 1006. In some aspects, one or more other components of the apparatus 1006 can generate communications and can provide the generated communications to the transmission component 1004 for transmission to the apparatus 1006. In some aspects, the transmission component 1004 can perform signal processing on the generated communications (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, among other examples), and can transmit the processed signals to the apparatus 1006. In some aspects, the transmission component 1004 can include one or more antennas, a modulator, a transmit MIMO processor, a transmit processor, a controller / processor, a memory, or a combination thereof, of the UE described above in connection with Fig. 2. In some aspects, the transmission component 1004 can be co-located with the reception component 1002 in a transceiver. Figure 2 The transmission component 1004 can transmit communications, such as reference signals, control information, data communications, or a combination thereof, to the apparatus 1006. In some aspects, one or more other components of the apparatus 1006 can generate communications and can provide the generated communications to the transmission component 1004 for transmission to the apparatus 1006. In some aspects, the transmission component 1004 can perform signal processing on the generated communications (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, among other examples), and can transmit the processed signals to the apparatus 1006. In some aspects, the transmission component 1004 can include one or more antennas, a modulator, a transmit MIMO processor, a transmit processor, a controller / processor, a memory, or a combination thereof, of the UE described above in connection with Fig. 2. In some aspects, the transmission component 1004 can be co-located with the reception component 1002 in a transceiver.

[0153] The mapping component 1008 can map HARQ-ACK feedback including first HARQ-ACK bits associated with a high priority and second HARQ-ACK bits associated with a low priority to a sequence cyclic shift value that provides unequal reliability between the first HARQ-ACK bits and the second HARQ-ACK bits. The transmission component 1004 can transmit the HARQ-ACK feedback to the base station via PUCCH format 0.

[0154] The transmission component 1004 can transmit, without using frequency hopping, the first HARQ-ACK bits associated with the high priority using a first symbol and the second HARQ-ACK bits associated with the low priority using a second symbol.

[0155] The transmission component 1004 can transmit the HARQ-ACK feedback using frequency hopping. The transmission component 1004 can transmit the first HARQ-ACK bit associated with the high priority using the first symbol. The transmission component 1004 can transmit the first HARQ-ACK bit associated with the high priority and the second HARQ-ACK bit associated with the low priority using the second symbol.

[0156] The transmission component 1004 can transmit the HARQ-ACK feedback using frequency hopping. The transmission component 1004 can transmit the first HARQ-ACK bit associated with the high priority using the first symbol. The transmission component 1004 can transmit the first HARQ-ACK bit associated with the high priority and the second HARQ-ACK bit associated with the low priority using the second symbol.

[0157] The transmission component 1004 can transmit the HARQ-ACK feedback using frequency hopping. The transmission component 1004 can transmit the first HARQ-ACK bit associated with the high priority using the first symbol. The transmission component 1004 can transmit the first HARQ-ACK bit associated with the high priority and the second HARQ-ACK bit associated with the low priority using the second symbol.

[0158] Figure 10 The number and arrangement of components shown in FIG. 10 are provided as an example. In practice, there can be additional components, fewer components, different components, or differently arranged components than those shown in FIG. 10. Additionally or alternatively, two or more components shown in FIG. 10 can be implemented within a single component, or a single component shown in FIG. 10 can be implemented as multiple, distributed components. Additionally or alternatively, a component recited as being configured to perform a particular function Figure 10 components shown in FIG. 10. For example, a component recited as being configured to perform a particular function can also be configured to perform additional functions. As another example, a component recited as being configured to perform one or more functions can also be configured to perform fewer functions. Additionally or alternatively, a component recited as being configured to perform one or more functions can be configured to perform the same functions using different components. Figure 10 Two or more components recited as being configured to perform one or more functions can be implemented within a single component or a fractional component. Additionally or alternatively, a component recited as being configured to perform one or more functions can be implemented as multiple, distributed components. For example, a component recited as being configured to perform one or more functions includes a2.4 GHz radio and a 5 GHz radio. The 2.4 GHz radio and the 5 GHz radio can be implemented within a single physical component or as multiple, distributed components. Figure 10 Two or more components recited as being configured to perform one or more functions can be implemented within a single component or a fractional component. Additionally or alternatively, a component recited as being configured to perform one or more functions can be implemented as multiple, distributed components. For example, a component recited as being configured to perform one or more functions includes a2.4 GHz radio and a 5 GHz radio. The 2.4 GHz radio and the 5 GHz radio can be implemented within a single physical component or as multiple, distributed components. Figure 10 A set of components (e.g., one or more components) recited as performing one or more functions can include those components recited as performing the functions, and Figure 10 A set of components (e.g., one or more components) recited as performing one or more functions can include those components recited as performing the functions, and

[0159] Figure 11 is a block diagram of an example apparatus 1100 for wireless communication. The apparatus 1100 can be a base station, or a base station can include the apparatus 1100. In some aspects, the apparatus 1100 includes a reception component 1102 and a transmission component 1104, which can be in communication with one another (for example, via one or more buses and / or one or more other components). As shown, the apparatus 1100 can communicate with another apparatus 1106 (such as a UE, a base station, or another wireless communication device) using the reception component 1102 and the transmission component 1104.

[0160] In some aspects, the apparatus 1100 can be configured to perform the operations described herein with regard to the apparatus 1100.Figures 4-7 The one or more operations described. Additionally or alternatively, the apparatus 1100 can be configured to perform one or more processes described herein, such as process 900 of FIG. 9. In some aspects, the apparatus 1100 and / or one or more components shown in FIG. 11 can include one or more components of the base station described above in connection with FIG. 7. Additionally or alternatively, one or more components illustrated in FIG. 11 can be implemented within one or more components described above in connection with FIG. 7. Additionally or alternatively, one or more components of the set of components can be implemented at least in part as software stored in a memory. Figure 9 The one or more operations described. Additionally or alternatively, the apparatus 1100 can be configured to perform one or more processes described herein, such as process 900 of FIG. 9. In some aspects, the apparatus 1100 and / or one or more components shown in FIG. 11 can include one or more components of the base station described above in connection with FIG. 7. Additionally or alternatively, one or more components illustrated in FIG. 11 can be implemented within one or more components described above in connection with FIG. 7. Additionally or alternatively, one or more components of the set of components can be implemented at least in part as software stored in a memory. Figure 11 The one or more operations described. Additionally or alternatively, the apparatus 1100 can be configured to perform one or more processes described herein, such as process 900 of FIG. 9. In some aspects, the apparatus 1100 and / or one or more components shown in FIG. 11 can include one or more components of the base station described above in connection with FIG. 7. Additionally or alternatively, one or more components illustrated in FIG. 11 can be implemented within one or more components described above in connection with FIG. 7. Additionally or alternatively, one or more components of the set of components can be implemented at least in part as software stored in a memory. Figure 2 The one or more operations described. Additionally or alternatively, the apparatus 1100 can be configured to perform one or more processes described herein, such as process 900 of FIG. 9. In some aspects, the apparatus 1100 and / or one or more components shown in FIG. 11 can include one or more components of the base station described above in connection with FIG. 7. Additionally or alternatively, one or more components illustrated in FIG. 11 can be implemented within one or more components described above in connection with FIG. 7. Additionally or alternatively, one or more components of the set of components can be implemented at least in part as software stored in a memory. Figure 11 The one or more operations described. Additionally or alternatively, the apparatus 1100 can be configured to perform one or more processes described herein, such as process 900 of FIG. 9. In some aspects, the apparatus 1100 and / or one or more components shown in FIG. 11 can include one or more components of the base station described above in connection with FIG. 7. Additionally or alternatively, one or more components illustrated in FIG. 11 can be implemented within one or more components described above in connection with FIG. 7. Additionally or alternatively, one or more components of the set of components can be implemented at least in part as software stored in a memory. Figure 2 The one or more operations described. Additionally or alternatively, the apparatus 1100 can be configured to perform one or more processes described herein, such as process 900 of FIG. 9. In some aspects, the apparatus 1100 and / or one or more components shown in FIG. 11 can include one or more components of the base station described above in connection with FIG. 7. Additionally or alternatively, one or more components illustrated in FIG. 11 can be implemented within one or more components described above in connection with FIG. 7. Additionally or alternatively, one or more components of the set of components can be implemented at least in part as software stored in a memory.

[0161] The reception component 1102 can receive communications, such as reference signals, control information, data communications, or a combination thereof, from the apparatus 1106. The reception component 1102 can provide received communications to one or more other components of the apparatus 1100. In some aspects, the reception component 1102 can perform signal processing on the received communications (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, de-mapping, equalization, interference cancellation, or decoding, among other examples), and can provide the processed signals to the one or more other components of the apparatus 1106. In some aspects, the reception component 1102 can include one or more antennas, a demodulator, a MIMO detector, a receive processor, a controller / processor, a memory, or a combination thereof, of the base station described above in connection with FIG. 7. Figure 2 The reception component 1102 can receive communications, such as reference signals, control information, data communications, or a combination thereof, from the apparatus 1106. The reception component 1102 can provide received communications to one or more other components of the apparatus 1100. In some aspects, the reception component 1102 can perform signal processing on the received communications (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, de-mapping, equalization, interference cancellation, or decoding, among other examples), and can provide the processed signals to the one or more other components of the apparatus 1106. In some aspects, the reception component 1102 can include one or more antennas, a demodulator, a MIMO detector, a receive processor, a controller / processor, a memory, or a combination thereof, of the base station described above in connection with FIG. 7. The transmission component 1104 can transmit communications, such as reference signals, control information, data communications, or a combination thereof, to the apparatus 1106. In some aspects, one or more other components of the apparatus 1106 can generate communications and can provide the generated communications to the transmission component 1104 for transmission to the apparatus 1106. In some aspects, the transmission component 1104 can perform signal processing on the generated communications (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or coding, among other examples), and can transmit the processed signals to the apparatus 1106. In some aspects, the transmission component 1104 can include one or more antennas, a modulator, a transmit MIMO processor, a transmit processor, a controller / processor, a memory, or a combination thereof, of the base station described above in connection with FIG. 7. In some aspects, the transmission component 1104 can be co-located with the reception component 1102 in a transceiver.

[0162] The transmission component 1104 can transmit communications, such as reference signals, control information, data communications, or a combination thereof, to the apparatus 1106. In some aspects, one or more other components of the apparatus 1106 can generate communications and can provide the generated communications to the transmission component 1104 for transmission to the apparatus 1106. In some aspects, the transmission component 1104 can perform signal processing on the generated communications (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or coding, among other examples), and can transmit the processed signals to the apparatus 1106. In some aspects, the transmission component 1104 can include one or more antennas, a modulator, a transmit MIMO processor, a transmit processor, a controller / processor, a memory, or a combination thereof, of the base station described above in connection with FIG. 7. In some aspects, the transmission component 1104 can be co-located with the reception component 1102 in a transceiver. Figure 2 The transmission component 1104 can transmit communications, such as reference signals, control information, data communications, or a combination thereof, to the apparatus 1106. In some aspects, one or more other components of the apparatus 1106 can generate communications and can provide the generated communications to the transmission component 1104 for transmission to the apparatus 1106. In some aspects, the transmission component 1104 can perform signal processing on the generated communications (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or coding, among other examples), and can transmit the processed signals to the apparatus 1106. In some aspects, the transmission component 1104 can include one or more antennas, a modulator, a transmit MIMO processor, a transmit processor, a controller / processor, a memory, or a combination thereof, of the base station described above in connection with FIG. 7. In some aspects, the transmission component 1104 can be co-located with the reception component 1102 in a transceiver.

[0163] The transmission component 1104 can transmit downlink data to a UE. The reception component 1102 can receive, from the UE, HARQ-ACK feedback via PUCCH format 0 based at least in part on the downlink data, where the HARQ-ACK feedback includes a first HARQ-ACK bit associated with a high priority and a second HARQ-ACK bit associated with a low priority, and where the HARQ-ACK feedback is mapped to a sequence cyclic shift value that provides unequal reliability between the first HARQ-ACK bit and the second HARQ-ACK bit.

[0164] The reception component 1102 can receive, without using frequency hopping, the first HARQ-ACK bit associated with the high priority using the first symbol and the second HARQ-ACK bit associated with the low priority using the second symbol.

[0165] The reception component 1102 can receive, without using frequency hopping, the first HARQ-ACK bit associated with the high priority using the first symbol and the second HARQ-ACK bit associated with the low priority using the second symbol.

[0166] The reception component 1102 can receive the HARQ-ACK feedback using frequency hopping. The reception component 1102 can receive the first HARQ-ACK bit associated with the high priority and the second HARQ-ACK bit associated with the low priority using the first symbol. The reception component 1102 can receive the first HARQ-ACK bit associated with the high priority and the second HARQ-ACK bit associated with the low priority using the second symbol.

[0167] The reception component 1102 can receive the HARQ-ACK feedback using frequency hopping. The reception component 1102 can receive the first HARQ-ACK bit associated with the high priority using the first symbol. The reception component 1102 can receive the first HARQ-ACK bit associated with the high priority and the second HARQ-ACK bit associated with the low priority using the second symbol.

[0168] Figure 11 The number and arrangement of components shown in FIG. 10 are provided as an example. In practice, there can be additional components, fewer components, different components, or differently arranged components than those shown in FIG. 10. Figure 11 For example, a component shown as single component in FIG. 10 can be implemented as multiple Figure 11 Two or more components shown in FIG. 10 can be implemented within a single component, or Figure 11 A single component shown in FIG. 10 can be implemented as multiple, distributed components. Additionally or alternatively, Figure 11The set of components (e.g., one or more components) illustrated in FIG. 10A can perform one or more functions described as being performed by Figure 11 The set of components illustrated in FIG. 10B performs one or more functions described as being performed by

[0169] An overview of aspects of the present disclosure is provided below:

[0170] Aspect 1 : A method of wireless communication performed by a user equipment (UE), comprising: mapping hybrid automatic repeat request acknowledgement (HARQ-ACK) feedback including a first HARQ-ACK bit associated with a high priority and a second HARQ-ACK bit associated with a low priority to a sequence cyclic shift value that provides unequal reliability between the first HARQ-ACK bit and the second HARQ-ACK bit; and transmitting, to a base station, the HARQ-ACK feedback via a physical uplink control channel (PUCCH) format 0.

[0171] Aspect 2: The method of aspect 1, wherein: the HARQ-ACK feedback is a first HARQ-ACK value including a high priority bit that is {0} and a low priority bit that is {0}, and the first HARQ-ACK value is associated with a first sequence cyclic shift value; the HARQ-ACK feedback is a second HARQ-ACK value including a high priority bit that is {0} and a low priority bit that is {1}, and the second HARQ-ACK value is associated with a second sequence cyclic shift value; the HARQ-ACK feedback is a third HARQ-ACK value including a high priority bit that is {1} and a low priority bit that is {1}, and the third HARQ-ACK value is associated with a third sequence cyclic shift value; or the HARQ-ACK feedback is a fourth HARQ-ACK value including a high priority bit that is {1} and a low priority bit that is {0}, and the fourth HARQ-ACK value is associated with a fourth sequence cyclic shift value.

[0172] Aspect 3: The method of aspect 2, wherein a distance between the first sequence cyclic shift value associated with the high priority bit that is {0} and the third sequence cyclic shift value associated with the high priority bit that is {1} is set to N / 2 to reduce a likelihood of decoding error of the first HARQ-ACK bit associated with the high priority at the base station, where N is a total number of available cyclic shift values associated with a sequence used to transmit the PUCCH format 0.

[0173] Aspect 4: The method of any of aspects 2 through 3, wherein a distance between a second sequence cyclic shift value associated with a high priority bit that is {0} and a fourth sequence cyclic shift value associated with a high priority bit that is {1} is set to N / 2 to reduce a likelihood of decoding error of a first HARQ-ACK bit associated with high priority at the base station, where N is a total number of available cyclic shift values associated with a sequence used to transmit the PUCCH format 0.

[0174] Aspect 5: The method of any of aspects 2 through 4, wherein a distance between a first sequence cyclic shift value associated with a high priority bit that is {0} and a low priority bit that is {0} and a second sequence cyclic shift value associated with a high priority bit that is {0} and a low priority bit that is {1} is set to less than N / 4, where N is a total number of available cyclic shift values associated with a sequence used to transmit the PUCCH format 0.

[0175] Aspect 6: The method of any of aspects 2 through 5, wherein a distance between a third sequence cyclic shift value associated with a high priority bit that is {1} and a low priority bit that is {1} and a fourth sequence cyclic shift value associated with a high priority bit that is {1} and a low priority bit that is {0} is set to less than N / 4, where N is a total number of available cyclic shift values associated with a sequence used to transmit the PUCCH format 0.

[0176] Aspect 7: The method of any of aspects 2 through 6, wherein a distance between a first sequence cyclic shift value associated with a high priority bit that is {0} and a low priority bit that is {0} and a fourth sequence cyclic shift value associated with a high priority bit that is {1} and a low priority bit that is {0} is set to greater than N / 4, where N is a total number of available cyclic shift values associated with a sequence used to transmit the PUCCH format 0.

[0177] Aspect 8: The method of any of aspects 2 through 7, wherein a distance between a second sequence cyclic shift value associated with a high priority bit that is {0} and a low priority bit that is {1} and a third sequence cyclic shift value associated with a high priority bit that is {1} and a low priority bit that is {1} is set to greater than N / 4, where N is a total number of available cyclic shift values associated with a sequence used to transmit the PUCCH format 0.

[0178] Aspect 9: The method of any of aspects 1 through 8, wherein the first HARQ-ACK bit corresponds to a most significant bit and the second HARQ-ACK bit corresponds to a least significant bit.

[0179] Aspect 10: The method of any of aspects 1 through 9, wherein the first HARQ-ACK bit corresponds to a lowest significant bit and the second HARQ-ACK bit corresponds to a highest significant bit.

[0180] Aspect 11 : The method of any of aspects 1 through 10, wherein transmitting the HARQ-ACK feedback via PUCCH format 0 comprises transmitting a first HARQ-ACK bit associated with a high priority using a first symbol and a second HARQ-ACK bit associated with a low priority using a second symbol without using frequency hopping.

[0181] Aspect 12: The method of any of aspects 1 through 11, wherein transmitting the HARQ-ACK feedback via PUCCH format 0 comprises transmitting a first HARQ-ACK bit associated with a high priority using a first symbol and a first HARQ-ACK bit associated with a high priority and a second HARQ-ACK bit associated with a low priority using a second symbol without using frequency hopping.

[0182] Aspect 13: The method of any of aspects 1 through 12, wherein transmitting the HARQ-ACK feedback via PUCCH format 0 comprises transmitting the HARQ-ACK feedback using frequency hopping and: transmitting a first HARQ-ACK bit associated with a high priority and a second HARQ-ACK bit associated with a low priority using a first symbol and a first HARQ-ACK bit associated with a high priority and a second HARQ-ACK bit associated with a low priority using a second symbol.

[0183] Aspect 14: The method of any of aspects 1 through 13, wherein transmitting the HARQ-ACK feedback via PUCCH format 0 comprises transmitting the HARQ-ACK feedback using frequency hopping and: transmitting a first HARQ-ACK bit associated with a high priority using a first symbol and a first HARQ-ACK bit associated with a high priority and a second HARQ-ACK bit associated with a low priority using a second symbol.

[0184] Aspect 15: A method of wireless communication performed by a base station, comprising: transmitting downlink data to a user equipment (UE); and receiving hybrid automatic repeat request acknowledgement (HARQ-ACK) feedback from the UE via a physical uplink control channel (PUCCH) format 0 based at least in part on the downlink data, wherein the HARQ-ACK feedback comprises a first HARQ-ACK bit associated with a high priority and a second HARQ-ACK bit associated with a low priority, and wherein the HARQ-ACK feedback is mapped to a sequence cyclic shift value that provides unequal reliability between the first HARQ-ACK bit and the second HARQ-ACK bit.

[0185] Aspect 16: The method of aspect 15, wherein: the HARQ-ACK feedback is a first HARQ-ACK value comprising a high priority bit of {0} and a low priority bit of {0}, and the first HARQ-ACK value is associated with a first sequence cyclic shift value; the HARQ-ACK feedback is a second HARQ-ACK value comprising a high priority bit of {0} and a low priority bit of {1}, and the second HARQ-ACK value is associated with a second sequence cyclic shift value; the HARQ-ACK feedback is a third HARQ-ACK value comprising a high priority bit of {1} and a low priority bit of {1}, and the third HARQ-ACK value is associated with a third sequence cyclic shift value; or the HARQ-ACK feedback is a fourth HARQ-ACK value comprising a high priority bit of {1} and a low priority bit of {0}, and the fourth HARQ-ACK value is associated with a fourth sequence cyclic shift value.

[0186] Aspect 17: The method of aspect 16, wherein a distance between the first sequence cyclic shift value associated with the high priority bit of {0} and the third sequence cyclic shift value associated with the high priority bit of {1} is set to N / 2 to reduce a likelihood of decoding error of the first HARQ-ACK bit associated with the high priority at the base station, where N is a total number of available cyclic shift values associated with a sequence used to transmit the PUCCH format 0.

[0187] Aspect 18: The method of any of aspects 16-17, wherein a distance between the second sequence cyclic shift value associated with the high priority bit of {0} and the fourth sequence cyclic shift value associated with the high priority bit of {1} is set to N / 2 to reduce a likelihood of decoding error of the first HARQ-ACK bit associated with the high priority at the base station, where N is a total number of available cyclic shift values associated with a sequence used to transmit the PUCCH format 0.

[0188] Aspect 19: The method of any of aspects 16 through 18, wherein a distance between a first sequence cyclic shift value associated with a high priority bit of {0} and a low priority bit of {0} and a second sequence cyclic shift value associated with a high priority bit of {0} and a low priority bit of {1} is set to be less than N / 4, where N is a total number of available cyclic shift values associated with a sequence used to transmit a PUCCH format 0.

[0189] Aspect 20: The method of any of aspects 16 through 19, wherein a distance between a third sequence cyclic shift value associated with a high priority bit of {1} and a low priority bit of {1} and a fourth sequence cyclic shift value associated with a high priority bit of {1} and a low priority bit of {0} is set to be less than N / 4, where N is a total number of available cyclic shift values associated with a sequence used to transmit a PUCCH format 0.

[0190] Aspect 21: The method of any of aspects 16 through 20, wherein a distance between a first sequence cyclic shift value associated with a high priority bit of {0} and a low priority bit of {0} and a fourth sequence cyclic shift value associated with a high priority bit of {1} and a low priority bit of {0} is set to be greater than N / 4, where N is a total number of available cyclic shift values associated with a sequence used to transmit a PUCCH format 0.

[0191] Aspect 22: The method of any of aspects 16 through 21, wherein a distance between a second sequence cyclic shift value associated with a high priority bit of {0} and a low priority bit of {1} and a third sequence cyclic shift value associated with a high priority bit of {1} and a low priority bit of {1} is set to be greater than N / 4, where N is a total number of available cyclic shift values associated with a sequence used to transmit a PUCCH format 0.

[0192] Aspect 23: The method of any of aspects 15 through 22, wherein the first HARQ-ACK bit corresponds to a most significant bit and the second HARQ-ACK bit corresponds to a least significant bit.

[0193] Aspect 24: The method of any of aspects 15 through 23, wherein the first HARQ-ACK bit corresponds to a least significant bit and the second HARQ-ACK bit corresponds to a most significant bit.

[0194] Aspect 25: The method of any of aspects 15 through 24, wherein receiving the HARQ-ACK feedback via the PUCCH format 0 comprises receiving a first HARQ-ACK bit associated with a high priority using a first symbol and receiving a second HARQ-ACK bit associated with a low priority using a second symbol without using frequency hopping.

[0195] Aspect 26: The method of any of aspects 15 through 25, wherein receiving the HARQ-ACK feedback via the PUCCH format 0 comprises receiving a first HARQ-ACK bit associated with a high priority using a first symbol and receiving a first HARQ-ACK bit associated with a high priority and a second HARQ-ACK bit associated with a low priority using a second symbol without using frequency hopping.

[0196] Aspect 27: The method of any of aspects 15 through 26, wherein receiving the HARQ-ACK feedback via the PUCCH format 0 comprises receiving the HARQ-ACK feedback using frequency hopping and: receiving a first HARQ-ACK bit associated with a high priority and a second HARQ-ACK bit associated with a low priority using a first symbol and receiving the first HARQ-ACK bit associated with the high priority and the second HARQ-ACK bit associated with the low priority using a second symbol.

[0197] Aspect 28: The method of any of aspects 15 through 27, wherein receiving the HARQ-ACK feedback via the PUCCH format 0 comprises receiving the HARQ-ACK feedback using frequency hopping and: receiving a first HARQ-ACK bit associated with a high priority using a first symbol and receiving the first HARQ-ACK bit associated with the high priority and a second HARQ-ACK bit associated with a low priority using a second symbol.

[0198] Aspect 29: An apparatus for wireless communication at a device, comprising a processor, memory coupled with the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform the method of one or more of aspects 1-14.

[0199] Aspect 30: A device for wireless communication comprising a memory and one or more processors coupled to the memory, the memory and the one or more processors configured to perform the method of one or more of aspects 1-14.

[0200] Aspect 31: A device for wireless communication comprising at least one means for performing a method of one or more of aspects 1-14.

[0201] Aspect 32: A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by a processor to perform the method of one or more of Aspects 1-14.

[0202] Aspect 33: A non-transitory 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 device, cause the device to perform the method of one or more of Aspects 1-14.

[0203] Aspect 34: An apparatus for wireless communication at a device, comprising a processor, memory coupled with the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform the method of one or more of Aspects 15-28.

[0204] Aspect 35: A device for wireless communication, comprising a memory and one or more processors coupled to the memory, the memory and the one or more processors configured to perform the method of one or more of Aspects 15-28.

[0205] Aspect 36: A device for wireless communication comprising at least one means for performing the method of one or more of Aspects 15-28.

[0206] Aspect 37: A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by a processor to perform the method of one or more of Aspects 15-28.

[0207] Aspect 38: A non-transitory 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 device, cause the device to perform the method of one or more of Aspects 15-28.

[0208] The foregoing disclosure provides explanation and description to enable a thorough understanding of the aspects, but is not intended to be exhaustive or to limit the aspects to the precise form disclosed. Modifications and variations are possible in light of the above disclosure or can be acquired from practice of the aspects.

[0209] As used herein, the term "component" is intended to be broadly construed as hardware and / or a combination of hardware and software. "Software" shall be broadly construed to mean instructions, instruction sets, code, code segments, program code, programs, subprograms, software modules, applications, software applications, software packages, routines, subroutines, objects, executables, threads of execution, procedures, and / or functions, among other examples, whether referred to as software, firmware, middleware, microcode, hardware description language, or otherwise. As used herein, a processor is implemented in hardware and / or a combination of hardware and software. It will be apparent that systems and / or methods described herein can be implemented in different forms of hardware and / or a combination of hardware and software. The actual specialized control hardware or software code used to implement these systems and / or methods is not limiting of the aspects. Thus, the operation and behavior of the systems and / or methods were described herein without reference to specific software code — it is understood that software and hardware can be designed to implement the systems and / or methods based, at least in part, on the description herein.

[0210] As used herein, depending on the context, satisfying a threshold can refer to being greater than the threshold, being greater than or equal to the threshold, being less than the threshold, being less than or equal to the threshold, being equal to the threshold, not being equal to the threshold, and / or the like.

[0211] While certain combinations of features are recited in the claims and / or described in the specification, these combinations are not intended to limit the disclosure of various aspects. Indeed, many of the features can be combined in ways not specifically recited in the claims and / or described in the specification. Although each dependent claim below may

[0212] No element, act, or instruction used herein should be construed as critical or essential unless explicitly described as such. Also, as used herein, the articles “a” and “an” are intended to include one or more items, and can be used interchangeably with “one or more.” Furthermore, as used herein, the article “the” is intended to include one or more items, and can be used interchangeably with “the one or more.” Also, as used herein, the terms “set” and “group” are intended to include one or more items (for example, related items, unrelated items, or a combination of related and unrelated items), and can be used interchangeably with “one or more.” Where only one item is intended, the phrase “only one” or similar language is used. Also, as used herein, the terms “has,” “have,” “having,” or the like are intended to be open-ended terms. Further, the phrase “based on” is intended to mean “based, at least in part, on” unless explicitly stated otherwise. Also, as used herein, the term “or” is intended to be inclusive when used in a series and can be used interchangeably with “and / or,” unless explicitly stated otherwise (e.g., in an exhaustive list of options).

Claims

1. A wireless communication method performed by a user equipment (UE), comprising: HARQ-ACK feedback, including a first hybrid automatic repeat request acknowledgment (HARQ-ACK) bit associated with high priority and a second HARQ-ACK bit associated with low priority, is mapped to a sequence cyclic shift value that provides reliability against inequality between the first and second HARQ-ACK bits; and The HARQ-ACK feedback is transmitted to the base station via Physical Uplink Control Channel (PUCCH) format 0.

2. The method of claim 1, wherein: The HARQ-ACK feedback is a first HARQ-ACK value that includes a high-priority bit of {0} and a low-priority bit of {0}, and the first HARQ-ACK value is associated with a first sequence cyclic shift value. The HARQ-ACK feedback is a second HARQ-ACK value comprising a high-priority bit of {0} and a low-priority bit of {1}, and the second HARQ-ACK value is associated with a second sequence cyclic shift value; The HARQ-ACK feedback is a third HARQ-ACK value consisting of a high-priority bit of {1} and a low-priority bit of {1}, and the third HARQ-ACK value is associated with a third sequence cyclic shift value. or The HARQ-ACK feedback is a fourth HARQ-ACK value consisting of a high-priority bit of {1} and a low-priority bit of {0}, and the fourth HARQ-ACK value is associated with a fourth sequence cyclic shift value.

3. The method of claim 2, wherein the distance between the first sequence cyclic shift value associated with the high priority bit of {0} and the third sequence cyclic shift value associated with the high priority bit of {1} is set to N / 2 to reduce the probability of decoding errors of the first HARQ-ACK bit associated with the high priority bit at the base station, wherein N is the total number of available cyclic shift values ​​associated with the sequence used to transmit the PUCCH format 0.

4. The method of claim 2, wherein the distance between the second sequence cyclic shift value associated with the high priority bit of {0} and the fourth sequence cyclic shift value associated with the high priority bit of {1} is set to N / 2 to reduce the probability of decoding errors of the first HARQ-ACK bit associated with the high priority bit at the base station, wherein N is the total number of available cyclic shift values ​​associated with the sequence used to transmit the PUCCH format 0.

5. The method of claim 2, wherein the distance between the first sequence cyclic shift value associated with the high priority bit of {0} and the low priority bit of {0} and the second sequence cyclic shift value associated with the high priority bit of {0} and the low priority bit of {1} is set to be less than N / 4, where N is the total number of available cyclic shift values ​​associated with the sequence used to transmit the PUCCH format 0.

6. The method of claim 2, wherein the distance between the third sequence cyclic shift value associated with the high priority bit of {1} and the low priority bit of {1} and the fourth sequence cyclic shift value associated with the high priority bit of {1} and the low priority bit of {0} is set to be less than N / 4, where N is the total number of available cyclic shift values ​​associated with the sequence used to transmit the PUCCH format 0.

7. The method of claim 2, wherein the distance between the first sequence cyclic shift value associated with the high priority bit of {0} and the low priority bit of {0} and the fourth sequence cyclic shift value associated with the high priority bit of {1} and the low priority bit of {0} is set to be greater than N / 4, where N is the total number of available cyclic shift values ​​associated with the sequence used to transmit the PUCCH format 0.

8. The method of claim 2, wherein the distance between the second sequence cyclic shift value associated with the high priority bit of {0} and the low priority bit of {1} and the third sequence cyclic shift value associated with the high priority bit of {1} and the low priority bit of {1} is set to be greater than N / 4, where N is the total number of available cyclic shift values ​​associated with the sequence used to transmit the PUCCH format 0.

9. The method of claim 1, wherein the first HARQ-ACK bit corresponds to the most significant bit, and the second HARQ-ACK bit corresponds to the least significant bit.

10. The method of claim 1, wherein the first HARQ-ACK bit corresponds to the least significant bit, and the second HARQ-ACK bit corresponds to the most significant bit.

11. The method of claim 1, wherein transmitting the HARQ-ACK feedback via the PUCCH format 0 comprises: Without using frequency hopping, a first symbol is used to transmit the first HARQ-ACK bit associated with the high priority, and a second symbol is used to transmit the second HARQ-ACK bit associated with the low priority.

12. The method of claim 1, wherein transmitting the HARQ-ACK feedback via the PUCCH format 0 comprises: Without using frequency hopping, a first symbol is used to transmit the first HARQ-ACK bit associated with the high priority, and a second symbol is used to transmit the first HARQ-ACK bit associated with the high priority and the second HARQ-ACK bit associated with the low priority.

13. The method of claim 1, wherein transmitting the HARQ-ACK feedback via the PUCCH format 0 comprises: Frequency hopping is used to transmit the HARQ-ACK feedback, and: The first symbol is used to transmit the first HARQ-ACK bit associated with the high priority and the second HARQ-ACK bit associated with the low priority, and The second symbol is used to transmit the first HARQ-ACK bit associated with the high priority and the second HARQ-ACK bit associated with the low priority.

14. The method of claim 1, wherein transmitting the HARQ-ACK feedback via the PUCCH format 0 comprises: Frequency hopping is used to transmit the HARQ-ACK feedback, and: The first symbol is used to transmit the first HARQ-ACK bit associated with the high priority, and The second symbol is used to transmit the first HARQ-ACK bit associated with the high priority and the second HARQ-ACK bit associated with the low priority.

15. A method for performing wireless communication by a base station, comprising: Transmitting downlink data; as well as Hybrid Automatic Repeat Request Acknowledgment (HARQ-ACK) feedback is received via Physical Uplink Control Channel (PUCCH) format 0, at least in part, based on the downlink data. The HARQ-ACK feedback includes a first HARQ-ACK bit associated with high priority and a second HARQ-ACK bit associated with low priority. The HARQ-ACK feedback is mapped to a sequence cyclic shift value that provides reliability that the first HARQ-ACK bit and the second HARQ-ACK bit are not equal.

16. The method of claim 15, wherein: The HARQ-ACK feedback is a first HARQ-ACK value that includes a high-priority bit of {0} and a low-priority bit of {0}, and the first HARQ-ACK value is associated with a first sequence cyclic shift value. The HARQ-ACK feedback is a second HARQ-ACK value comprising a high-priority bit of {0} and a low-priority bit of {1}, and the second HARQ-ACK value is associated with a second sequence cyclic shift value; The HARQ-ACK feedback is a third HARQ-ACK value consisting of a high-priority bit of {1} and a low-priority bit of {1}, and the third HARQ-ACK value is associated with a third sequence cyclic shift value. or The HARQ-ACK feedback is a fourth HARQ-ACK value consisting of a high-priority bit of {1} and a low-priority bit of {0}, and the fourth HARQ-ACK value is associated with a fourth sequence cyclic shift value.

17. The method of claim 16, wherein the distance between the first sequence cyclic shift value associated with the high priority bit of {0} and the third sequence cyclic shift value associated with the high priority bit of {1} is set to N / 2 to reduce the probability of decoding errors of the first HARQ-ACK bit associated with the high priority bit at the base station, wherein N is the total number of available cyclic shift values ​​associated with the sequence used to transmit the PUCCH format 0.

18. The method of claim 16, wherein the distance between the second sequence cyclic shift value associated with the high priority bit of {0} and the fourth sequence cyclic shift value associated with the high priority bit of {1} is set to N / 2 to reduce the probability of decoding errors of the first HARQ-ACK bit associated with the high priority bit at the base station, wherein N is the total number of available cyclic shift values ​​associated with the sequence used to transmit the PUCCH format 0.

19. The method of claim 16, wherein the distance between the first sequence cyclic shift value associated with the high priority bit of {0} and the low priority bit of {0} and the second sequence cyclic shift value associated with the high priority bit of {0} and the low priority bit of {1} is set to be less than N / 4, where N is the total number of available cyclic shift values ​​associated with the sequence used to transmit the PUCCH format 0.

20. The method of claim 16, wherein the distance between the third sequence cyclic shift value associated with the high priority bit of {1} and the low priority bit of {1} and the fourth sequence cyclic shift value associated with the high priority bit of {1} and the low priority bit of {0} is set to be less than N / 4, where N is the total number of available cyclic shift values ​​associated with the sequence used to transmit the PUCCH format 0.

21. The method of claim 16, wherein the distance between the first sequence cyclic shift value associated with the high priority bit of {0} and the low priority bit of {0} and the fourth sequence cyclic shift value associated with the high priority bit of {1} and the low priority bit of {0} is set to be greater than N / 4, where N is the total number of available cyclic shift values ​​associated with the sequence used to transmit the PUCCH format 0.

22. The method of claim 16, wherein the distance between the second sequence cyclic shift value associated with the high priority bit of {0} and the low priority bit of {1} and the third sequence cyclic shift value associated with the high priority bit of {1} and the low priority bit of {1} is set to be greater than N / 4, where N is the total number of available cyclic shift values ​​associated with the sequence used to transmit the PUCCH format 0.

23. The method of claim 15, wherein the first HARQ-ACK bit corresponds to the most significant bit, and the second HARQ-ACK bit corresponds to the least significant bit.

24. The method of claim 15, wherein the first HARQ-ACK bit corresponds to the least significant bit, and the second HARQ-ACK bit corresponds to the most significant bit.

25. The method of claim 15, wherein receiving the HARQ-ACK feedback via the PUCCH format 0 comprises: Without using frequency hopping, a first symbol is used to receive the first HARQ-ACK bit associated with the high priority, and a second symbol is used to receive the second HARQ-ACK bit associated with the low priority.

26. The method of claim 15, wherein receiving the HARQ-ACK feedback via the PUCCH format 0 comprises: Without using frequency hopping, a first symbol is used to receive the first HARQ-ACK bit associated with the high priority, and a second symbol is used to receive the first HARQ-ACK bit associated with the high priority and the second HARQ-ACK bit associated with the low priority.

27. The method of claim 15, wherein receiving the HARQ-ACK feedback via the PUCCH format 0 comprises: Frequency hopping is used to receive the HARQ-ACK feedback, and: The first symbol is used to receive the first HARQ-ACK bit associated with the high priority and the second HARQ-ACK bit associated with the low priority, and The second symbol is used to receive the first HARQ-ACK bit associated with the high priority and the second HARQ-ACK bit associated with the low priority.

28. The method of claim 15, wherein receiving the HARQ-ACK feedback via the PUCCH format 0 comprises: Frequency hopping is used to receive the HARQ-ACK feedback, and: The first symbol is used to receive the first HARQ-ACK bit associated with the high priority, and The second symbol is used to receive the first HARQ-ACK bit associated with the high priority and the second HARQ-ACK bit associated with the low priority.

29. 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: HARQ-ACK feedback, including a first hybrid automatic repeat request acknowledgment (HARQ-ACK) bit associated with high priority and a second HARQ-ACK bit associated with low priority, is mapped to a sequence cyclic shift value that provides reliability against inequality between the first and second HARQ-ACK bits; and The HARQ-ACK feedback is transmitted to the base station via Physical Uplink Control Channel (PUCCH) format 0.

30. A user equipment (UE) for wireless communication, comprising: Memory; as well as One or more processors are operatively coupled to the memory, and the memory and the one or more processors are configured to perform the method as described in any one of claims 2-14.

31. 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: Transmitting downlink data; and Hybrid Automatic Repeat Request Acknowledgment (HARQ-ACK) feedback is received via Physical Uplink Control Channel (PUCCH) format 0, at least in part, based on the downlink data. The HARQ-ACK feedback includes a first HARQ-ACK bit associated with high priority and a second HARQ-ACK bit associated with low priority. The HARQ-ACK feedback is mapped to a sequence cyclic shift value that provides reliability that the first HARQ-ACK bit and the second HARQ-ACK bit are not equal.

32. 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 perform the method as described in any one of claims 16-28.

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