Facilitates the use of MCS and modulation order upper limits for UCI transmission

Abstract

Techniques for signaling various modulation and coding schemes for wireless communications are discussed. A method of wireless communications may include receiving, by a user equipment (UE), an indication of a first modulation and coding scheme for transmission of uplink control information that applies an upper modulation order limit to determine a second modulation and coding scheme that is different from transmission of data. The method may also include sending the uplink control information using the first modulation and coding scheme, wherein the first modulation and coding scheme is determined based at least in part on the received indication of the upper modulation order limit applied.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims the benefit of U.S. Patent Application No. 17 / 220,494, filed on April 1, 2021, entitled “FACILITATING MCS USE WITH VARYING FEATURES FOR UCI TRANSMISSION,” and U.S. Provisional Patent Application No. 63 / 004,579, filed on April 3, 2020, entitled “SIGNALING ASPECTS FOR ALLOWING DIFFERENT MCS FOR UCI MULTIPLEXING ONPUSCH,” both of which are expressly incorporated herein by reference in their entireties as if fully set forth below and for all applicable purposes. The technical aspects discussed below may be used with one or more aspects discussed in U.S. Patent Application Publication No. 16 / 186,802, entitled “UPLINK CONTROL INFORMATION TRANSMISSION,” which is also expressly incorporated herein by reference as if fully set forth below. Technical Field

[0003] Aspects of the present disclosure relate generally to wireless communication systems, and more specifically, to techniques and apparatus that allow different multiplexing and coding schemes for multiplexed uplink control information. Certain embodiments of the techniques discussed below can achieve and provide enhanced efficiency, high communication speed, low latency, and high reliability in the transmission of uplink control information. Background Art

[0004] Wireless communication networks are widely deployed to provide various communication services, such as voice, video, packet data, messaging, broadcast, etc. These wireless networks may be multiple-access networks capable of supporting multiple users by sharing the available network resources. Such networks, typically multiple-access networks, support communications for multiple users by sharing the available network resources.

[0005] A wireless communication network may include many base stations or Node Bs that may support communications for many user equipments (UEs). A UE may communicate with a base station via a downlink and an uplink. A downlink (or forward link) refers to a communication link from a base station to a UE, and an uplink (or reverse link) refers to a communication link from a UE to a base station.

[0006] The base station may send data and control information to the UE on the downlink and / or may receive data and control information from the UE on the uplink. On the downlink, transmissions from the base station may encounter interference due to transmissions from neighboring base stations or from other wireless radio frequency (RF) transmitters. On the uplink, transmissions from the UE may encounter interference from other UEs communicating with neighboring base stations or from uplink transmissions from other wireless RF transmitters. Such interference may degrade performance on both the downlink and uplink.

[0007] As the demand for mobile broadband access continues to increase, the potential for interference and congested networks grows as more UEs access long-range wireless communication networks and more short-range wireless systems are deployed in communities. Research and development continues to advance wireless technologies, not only to meet the growing demand for mobile broadband access, but also to advance and enhance the user experience of mobile communications. Summary of the invention

[0008] The following summarizes some aspects of the present disclosure to provide a basic understanding of the technology discussed. This summary is not a comprehensive overview of all expected features of the present disclosure, and is neither intended to identify the key or important elements of all aspects of the present disclosure, nor is it intended to delineate the scope of any or all aspects of the present disclosure. Its sole purpose is to present some concepts of one or more aspects of the present disclosure in an overview form as a preface to a more detailed description presented later.

[0009] In one aspect of the present disclosure, a method of wireless communication may include determining, by a UE, whether to apply a first modulation and coding scheme different from the modulation and coding scheme applied to payload data to the transmission of uplink control information multiplexed on a physical uplink shared channel (PUSCH). The method may include determining, by the UE, whether to apply a modulation order upper limit (cap) to determine the first modulation and coding scheme. The method may include determining, by the UE at least in part based on whether to apply the modulation order upper limit to determine the first modulation and coding scheme to determine the first modulation and coding scheme for the transmission of uplink control information. The method may include sending the uplink control information on the PUSCH using the determined first modulation and coding scheme. In some aspects, the first modulation and coding scheme may be a modulation and coding scheme for the transmission of at least one of the following: a hybrid automatic repeat request acknowledgment (HARQ-ACK) of the uplink control information, a first channel state information portion of the uplink control information, or a second channel state information portion of the uplink control information.

[0010] In some aspects, the method may include receiving, by the UE, an indication of an offset value from a code rate of a second modulation and coding scheme for payload data transmission. The determination of the first modulation and coding scheme may also be performed based on the indication of the received offset value. In some aspects, the code rate of the first modulation and coding scheme may be determined based on the indication of the received offset value. In some aspects, receiving an indication of an offset value from a code rate of a second modulation and coding scheme for payload data transmission may include at least one of: receiving an indication of an offset value from a code rate of a hybrid automatic repeat request acknowledgment (HARQ-ACK) for determining uplink control information, receiving an indication of an offset value from a code rate of a second modulation and coding scheme for determining a code rate of a first channel state information portion of the uplink control information, or receiving an indication of an offset value from a code rate of a second modulation and coding scheme for determining a code rate of a second channel state information portion of the uplink control information.

[0011] In some aspects, whether to apply a modulation order upper limit to determine the determination of the first modulation and coding scheme may include: receiving, by the UE, an upper limit enabling parameter indicating that the modulation order upper limit is enabled for the first modulation and coding scheme. Whether to apply the modulation order upper limit to determine the determination of the first modulation and coding scheme may include determining, by the UE, that the PUSCH is a low priority PUSCH. The determination of the first modulation and coding scheme for transmission of uplink control information by the UE may be based at least in part on the received upper limit enabling parameter and the determination that the PUSCH is a low priority PUSCH. The upper limit enabling parameter may be received via a radio resource control (RRC) configuration communication. The upper limit enabling parameter may include a downlink control information (DCI) format indication, and the determination of the first modulation and coding scheme for transmission of uplink control information by the UE may be based at least in part on the DCI format indication. In some aspects, the DCI format indication may include an indication of DCI format 1_2. For more examples and information about DCI formats used in wireless communications, see Section 7.3.1 of 3GPP Technical Specification (TS) 38.212, Version 15.8.0, titled “Multiplexing and channel coding,” published on January 11, 2020, which is publicly available. In some aspects, the DCI format indication may include a priority indicator indicating a high priority, and the determination by the UE of a first modulation and coding scheme for transmission of the uplink control information may be based at least in part on the priority indicator indicating a high priority.

[0012] In another aspect, a method of wireless communication may include determining, by a base station, that a modulation order upper limit is applied by a user equipment (UE) to a modulation and coding scheme for transmission of uplink control information multiplexed on a physical uplink shared channel (PUSCH). The method may also include transmitting, by the base station, an upper limit enabling parameter indicating that the modulation order upper limit is applied to the modulation and coding scheme. The method may also include receiving, by the base station, uplink control information to which a first modulation and coding scheme having an order limited by the modulation order upper limit has been applied.

[0013] In some aspects, the uplink control information may include at least one of a hybrid automatic repeat request acknowledgment (HARQ-ACK) of the uplink control information, a first channel state information portion of the uplink control information, or a second channel state information portion of the uplink control information. In some aspects, sending the upper limit enabling parameter may include sending the upper limit parameter in a radio resource control (RRC) configuration communication. In some aspects, sending the upper limit enabling parameter may include sending the upper limit enabling parameter in a downlink control information (DCI). The upper limit enabling parameter may include a DCI format indicator. The upper limit enabling parameter may include a high priority indicator for DCI format 1_2.

[0014] In some aspects, a method of wireless communication may include receiving, by a UE, an indication of a first modulation and coding scheme for transmission of uplink control information that applies an upper modulation order limit to determine a second modulation and coding scheme that is different from a transmission of data, and sending the uplink control information using the first modulation and coding scheme, wherein the first modulation and coding scheme is determined at least in part based on the received indication of the upper modulation order limit. In some aspects, the first modulation and coding scheme is also determined based on a received indication of an offset value from a code rate of the second modulation and coding scheme. In some aspects, the code rate of the first modulation and coding scheme is determined based on the received indication of an offset value from a code rate of the second modulation and coding scheme. In some aspects, the method may also include receiving, by the UE, an indication of an offset value from a code rate of a second modulation and coding scheme used for transmission of data, wherein receiving, by the UE, an indication of an offset value includes at least one of the following: receiving an indication of an offset value from a code rate of a hybrid automatic repeat request acknowledgment (HARQ-ACK) for determining uplink control information; receiving an indication of an offset value from a code rate of a second modulation and coding scheme for determining a code rate of a first channel state information portion of the uplink control information; or receiving an indication of an offset value from a code rate of a second modulation and coding scheme for determining a code rate of a second channel state information portion of the uplink control information. In some aspects, the first modulation and coding scheme is a modulation and coding scheme used for transmission of at least one of the following: a hybrid automatic repeat request acknowledgment (HARQ-ACK) of uplink control information, a first channel state information portion of the uplink control information, or a second channel state information portion of the uplink control information. In some aspects, receiving, by the UE, an indication of applying a modulation order cap includes receiving, by the UE, an upper limit enabling parameter indicating enabling a modulation order upper limit for a first modulation and coding scheme, and wherein the first modulation and coding scheme is also determined based, at least in part, on a determination that data has a first priority lower than a second priority for uplink control information and the received upper limit enabling parameter. In some aspects, the upper limit enabling parameter includes a downlink control information (DCI) format indication, and wherein the first modulation and coding scheme for transmission of the uplink control information is also determined, at least in part, based on the DCI format indication. In some aspects, the DCI format indication includes a priority indicator indicating the second priority, and wherein the first modulation and coding scheme for transmission of the uplink control information is also determined, at least in part, based on the priority indicator indicating the second priority.

[0015] In another aspect of the present disclosure, a non-transitory computer readable medium having program code recorded thereon is disclosed. The program code may include code for executing one or more actions or steps described herein.

[0016] In another aspect of the present disclosure, a device configured for wireless communication is disclosed. The device includes at least one processor and a memory coupled to the processor. The processor is configured to perform the steps described herein. In an additional aspect of the present disclosure, a device for wireless communication may include a device for performing the steps described herein.

[0017] After reading the description of the following specific exemplary embodiments in conjunction with the accompanying drawings, other aspects, features and embodiments will become apparent to those of ordinary skill in the art. Although features may be discussed relative to certain embodiments and figures below, all embodiments may include one or more advantageous features discussed herein. In other words, although one or more embodiments may be discussed as having certain advantageous features, one or more of such features may also be used according to various embodiments. In a similar manner, although exemplary embodiments may be discussed below as device, system or method embodiments, exemplary embodiments may be implemented with various devices, systems and methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] A further understanding of the nature and advantages of the present disclosure may be achieved by reference to the following drawings. In the drawings, similar components or features may have the same reference label. In addition, various components of the same type may be distinguished by following the reference label with a dash and a second label that distinguishes between similar components. If only the first reference label is used in the specification, the description is applicable to any similar component having the same first reference label, regardless of the second reference label.

[0019] Figure 1 is a block diagram showing details of a wireless communication system according to some embodiments of the present disclosure.

[0020] Figure 2 is a block diagram conceptually illustrating a design of a base station and a UE configured according to some embodiments of the present disclosure.

[0021] Figure 3 is a diagram illustrating an example of uplink control information transmission according to some embodiments of the present disclosure.

[0022] Figure 4 is a diagram illustrating an example process, for example, performed by a user device, according to some embodiments of the present disclosure.

[0023] Figure 5 is a diagram illustrating an example process, for example, performed by a base station, according to some embodiments of the present disclosure.

[0024] Figure 6 is a conceptual diagram of a method configured to perform, for example, Figure 4 , Fig. 9and Fig.10 Block diagram of a UE design for the described process.

[0025] Figure 7 is a conceptual diagram of a method configured to perform, for example, Figure 5 Block diagram of a base station design for the described process.

[0026] Figure 8 is a diagram illustrating an example transmission including uplink control information and payload data according to some embodiments of the present disclosure.

[0027] Fig. 9 is a diagram illustrating an example process, for example, performed by a user device, according to some embodiments of the present disclosure.

[0028] Fig.10 is a diagram illustrating an example process, for example, performed by a user device, according to some embodiments of the present disclosure. DETAILED DESCRIPTION

[0029] The "Detailed Description" set forth below in conjunction with the accompanying drawings and appendices is intended as a description of various configurations and is not intended to limit the scope of the present disclosure. Instead, the "Detailed Description" includes specific details for providing a thorough understanding of the subject matter of the present invention. It will be apparent to those skilled in the art that these specific details are not required in every case, and in some cases, well-known structures and components are shown in block diagram form for clarity.

[0030] The present disclosure generally relates to providing or participating in communications between two or more wireless devices in one or more wireless communication systems (also referred to as wireless communication networks). In various embodiments, these techniques and apparatuses may be used in wireless communication networks, such as code division multiple access (CDMA) networks, time division multiple access (TDMA) networks, frequency division multiple access (FDMA) networks, orthogonal FDMA (OFDMA) networks, single carrier FDMA (SC-FDMA) networks, LTE networks, GSM networks, 5th generation (5G) or new radio (NR) networks (sometimes referred to as "5G NR" networks / systems / devices), and other communication networks. As described herein, the terms "network" and "system" may be used interchangeably.

[0031] A CDMA network may implement, for example, a radio technology such as Universal Terrestrial Radio Access (UTRA), cdma2000, etc. UTRA includes Wideband-CDMA (W-CDMA) and Low Chip Rate (LCR). CDMA2000 covers IS-2000, IS-95, and IS-856 standards.

[0032] TDMA networks can implement radio technologies such as GSM, for example. 3GPP defines the standards for the GSM EDGE (Enhanced Data Rates for GSM Evolution) Radio Access Network (RAN) (also known as GERAN). GERAN is the radio component of GSM / EDGE and the network that connects base stations (e.g., Ater and Abis interfaces) and base station controllers (A interfaces, etc.). The radio access network represents the components of the GSM network through which phone calls and packet data are routed from and to the public switched telephone network (PSTN) and the Internet and to and from subscriber phones (also known as user terminals or user equipment (UE)). The network of a mobile phone operator may include one or more GERANs, which may be coupled to a universal terrestrial radio access network (UTRAN) in the case of a UMTS / GSM network. The operator network may also include one or more LTE networks and / or one or more other networks. Various different network types may use different radio access technologies (RATs) and radio access networks (RANs).

[0033] OFDMA networks can implement radio technologies such as Evolved UTRA (E-UTRA), IEEE 802.11, IEEE 802.16, IEEE802.20, flash-OFDM, etc. UTRA, E-UTRA, and Global System for Mobile Communications (GSM) are part of the Universal Mobile Telecommunications System (UMTS). Specifically, Long Term Evolution (LTE) is a version of UMTS that uses E-UTRA. UTRA, E-UTRA, GSM, UMTS, and LTE are described in documents provided by an organization named "3rd Generation Partnership Project" (3GPP), and cdma2000 is described in documents provided by an organization named "3rd Generation Partnership Project 2" (3GPP2). These various radio technologies and standards are known or under development. For example, the 3rd Generation Partnership Project (3GPP) is a collaboration between a group of telecommunications associations to define globally applicable third generation (3G) mobile phone specifications. 3GPP Long Term Evolution (LTE) is a 3GPP project that aims to improve the Universal Mobile Telecommunications System (UMTS) mobile phone standard. 3GPP may define specifications for next generation mobile networks, mobile systems, and mobile devices.The present disclosure relates to the evolution of wireless technologies from LTE, 4G, 5G, NR and beyond to share access to wireless spectrum between networks using a range of new and different radio access technologies or radio air interfaces.

[0034] 5G networks take into account diverse deployments, diverse spectrum, and diverse services and devices that can be implemented using a unified air interface based on OFDM. To achieve these goals, in addition to developing new radio technologies for 5G NR networks, further enhancements to LTE and LTE-A are also considered. 5G NR will be able to scale to provide coverage for the massive Internet of Things (IoT) with ultra-high density (e.g., ~1M nodes / km2), ultra-low complexity (e.g., ~10s of bits / second), ultra-low energy (e.g., ~10+ years of battery life), and deep coverage with the ability to reach challenging locations (1); (2) mission-critical control including strong security to protect sensitive personal, financial, or confidential information, ultra-high reliability (e.g., ~99.9999% reliability), ultra-low latency (e.g., ~1ms), and users with extensive mobility or lack of mobility; and (3) enhanced mobile broadband with extremely high capacity (e.g., ~10Tbps / km2), extremely high data rates (e.g., multi-Gbps rates, 100+Mbps user experienced rates), and deep awareness with advanced discovery and optimization.

[0035] 5G NR devices, networks, and systems can be implemented to use optimized OFDM-based waveform features. These features can include scalable parameter sets and transmission time intervals (TTIs); a common, flexible framework that can effectively reuse services and features through dynamic, low-latency time division duplex (TDD) / frequency division duplex (FDD) designs; and advanced wireless technologies such as massive multiple-input multiple-output (MIMO), robust millimeter wave (mmWave) transmission, advanced channel coding, and device-centric mobility. The scalability of parameter sets in 5G NR and the expansion of subcarrier spacing can effectively solve the operational problems of diverse services across diverse spectrums and diverse deployments. For example, in various outdoor and macro coverage deployments implemented by less than 3GHz FDD / TDD, the subcarrier spacing can appear at 15kHz on bandwidths such as 1, 5, 10, 20MHz, etc. For other various outdoor and small cell coverage deployments of TDD greater than 3GHz, the subcarrier spacing can appear at 30kHz on 80 / 100MHz bandwidth. For various other indoor broadband implementations using TDD on the unlicensed portion of the 5GHz band, subcarrier spacing may occur at 60kHz over a 160MHz bandwidth. Finally, for various deployments using millimeter wave components for transmission at 28GHz TDD, subcarrier spacing may occur at 120kHz over a 500MHz bandwidth.

[0036] 5G NR's scalable parameter set facilitates scalable TTI for diverse latency and quality of service (QoS) requirements. For example, shorter TTIs can be used for low latency and high reliability, while longer TTIs can be used for higher spectral efficiency. Efficient multiplexing of long and short TTIs allows transmission to start on symbol boundaries. 5G NR also considers a self-contained integrated subframe design with uplink / downlink scheduling information, data, and acknowledgment in the same subframe. The self-contained integrated subframe supports adaptive uplink / downlink communication in unlicensed or contention-based shared spectrum, which can be flexibly configured on a per-cell basis to dynamically switch between uplink and downlink to meet current business needs.

[0037] For clarity, certain aspects of the apparatus and techniques may be described below with reference to exemplary LTE implementations or in an LTE-centric manner, and LTE terminology may be used as an illustrative example in portions of the description below; however, the description is not intended to be limited to LTE applications. In fact, the present disclosure relates to shared access to wireless spectrum between networks using different radio access technologies or radio air interfaces (such as those of 5G NR).

[0038] Furthermore, it should be understood that in operation, a wireless communication network adapted according to the concepts herein can operate with any combination of licensed or unlicensed spectrum depending on load and availability. Therefore, it will be apparent to those skilled in the art that the systems, devices, and methods described herein can be applied to other communication systems and applications besides the specific examples provided.

[0039] Although aspects and embodiments are described in this application by way of illustration of some examples, it will be understood by those skilled in the art that additional implementations and use cases may occur in many different arrangements and scenarios. The innovations described herein may be implemented across many different platform types, devices, systems, shapes, sizes, and packaging arrangements. For example, embodiments and / or uses may be generated via integrated chip embodiments and / or other devices based on non-module components (e.g., end-user devices, vehicles, communication devices, computing devices, industrial equipment, retail / procurement equipment, medical devices, AI-enabled devices, etc.). Although some examples may or may not be specifically targeted at use cases or applications, a variety of applicability of the described innovations may occur. The range of implementations may range from chip-level or modular components to non-modular, non-chip-level implementations, and further to aggregated, distributed, or OEM devices or systems incorporating one or more of the described aspects. In some practical settings, the devices incorporating the described aspects and features may also have to include additional components and features for implementing and practicing the claimed and described embodiments. It is intended that the innovations described herein can be practiced in a wide variety of implementations including large / small devices of varying sizes, shapes, and structures, chip-level components, multi-component systems (e.g., RF chains, communication interfaces, processors), distributed arrangements, end-user devices, etc.

[0040] Figure 1 1 shows a wireless network 100 for communication according to some embodiments. The wireless network 100 may, for example, include a 5G wireless network. As will be appreciated by those skilled in the art, Figure 1 The components in may have related counterparts in other network arrangements including, for example, cellular network arrangements and non-cellular network arrangements (eg, device-to-device or peer-to-peer or ad hoc network arrangements, etc.).

[0041] Figure 1The wireless network 100 shown includes many base stations 105 and other network entities. The base station can be a station that communicates with the UE and can also be referred to as an evolved node B (eNB), a next generation eNB (gNB), an access point, etc. Each base station 105 can provide communication coverage for a specific geographic area. In 3GPP, the term "cell" can refer to this specific geographic coverage area of ​​the base station and / or a base station subsystem serving the coverage area, depending on the context in which the term is used. In the implementation of the wireless network 100 herein, the base station 105 can be associated with the same operator or different operators (for example, the wireless network 100 can include multiple operator wireless networks), and can provide wireless communication using one or more of the same frequencies with adjacent cells (for example, one or more frequency bands in a licensed spectrum, an unlicensed spectrum, or a combination thereof). In some examples, each base station 105 or UE 115 can be operated by more than one network operating entity. In other examples, each base station 105 and UE 115 can be operated by a single network operating entity.

[0042] A base station may provide communication coverage for a macro cell or a small cell such as a pico cell or a femto cell and / or other types of cells. A macro cell generally covers a relatively large geographic area (e.g., a radius of several kilometers) and may allow unrestricted access to UEs with a service subscription with a network provider. Small cells such as pico cells will generally cover a relatively small geographic area and may allow unrestricted access to UEs with a service subscription with a network provider. Small cells such as femto cells will also generally cover a relatively small geographic area (e.g., a home) and, in addition to unrestricted access, may also provide restricted access to UEs associated with the femto cell (e.g., UEs in a closed subscriber group (CSG), UEs of home users, etc.). A base station for a macro cell may be referred to as a macro base station. A base station for a small cell may be referred to as a small cell base station, a pico base station, a femto base station, or a home base station. In Figure 1 In the example shown, base stations 105d and 105e are conventional macro base stations, while base stations 105a-105c are macro base stations that enable one of 3-dimensional (3D), full-dimensional (FD), or massive MIMO. Base stations 105a-105c utilize their higher-dimensional MIMO capabilities to increase coverage and capacity using 3D beamforming in elevation and azimuth beamforming. Base station 105f is a small cell base station, which can be a home node or a portable access point. The base station can support one or more (e.g., two, three, four, etc.) cells.

[0043] The wireless network 100 may support synchronous or asynchronous operation. For synchronous operation, the base stations may have similar frame timing, and transmissions from different base stations may be approximately aligned in time. For asynchronous operation, the base stations may have different frame timing, and transmissions from different base stations may not be aligned in time. In some scenarios, the network may be enabled or configured to handle dynamic switching between synchronous or asynchronous operation.

[0044] UE 115 is distributed throughout the wireless network 100, and each UE can be stationary or mobile. It should be understood that although mobile devices are generally referred to as user equipment (UE) in the standards and specifications promulgated by the Third Generation Partnership Project (3GPP), those skilled in the art may also refer to such devices as mobile stations (MS), subscriber stations, mobile units, subscriber units, wireless units, remote units, mobile devices, wireless devices, wireless communication devices, remote devices, mobile subscriber stations, access terminals (AT), mobile terminals, wireless terminals, remote terminals, mobile phones, terminals, user agents, mobile clients, clients, gaming devices, augmented reality devices, vehicle component devices / modules, or some other suitable terms. In this document, a "mobile" device or UE does not necessarily have the ability to move and can be stationary. Some non-limiting examples of mobile devices (such as embodiments that may include one or more UE 115) include mobile devices, cellular (cell) phones, smart phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, laptop computers, personal computers (PCs), notebook computers, netbooks, smart books, tablet computers, and personal digital assistants (PDAs). The mobile device may also be an "Internet of Things" (IoT) or "Internet of Everything" (IoE) device, such as a car or other transportation vehicle, a satellite radio, a global positioning system (GPS) device, a logistics controller, a drone, a multi-axis aircraft, a quadcopter, a smart energy or security device, a solar panel or solar array, municipal lighting, water or other infrastructure; industrial automation and enterprise equipment; consumer and wearable devices, such as glasses, wearable cameras, smart watches, health or fitness trackers, mammal implantable devices, gesture tracking devices, medical devices, digital audio players (e.g., MP3 players), cameras, game consoles, etc.; and digital home or smart home devices, such as home audio, video and multimedia devices, appliances, sensors, vending machines, smart lighting, home security systems, smart meters, etc. In one aspect, a UE may be a device that includes a universal integrated circuit card (UICC). In another aspect, a UE may be a device that does not include a UICC. In some aspects, a UE that does not include a UICC may also be referred to as an IoE device. Figure 1The UEs 115a-115d of the illustrated embodiment are examples of mobile smartphone type devices accessing the wireless network 100. The UE may also be a machine specifically configured for connected communications including machine type communications (MTC), enhanced MTC (eMTC), narrowband IOT (NB-IoT), etc. Figure 1 The UEs 115e - 115k shown in FIG. 1 are examples of various machines configured for communications accessing the wireless network 100 .

[0045] A mobile device such as UE 115 may be able to communicate with any type of base station, whether macro, pico, femto, relay, etc. Figure 1 In the present invention, a lightning bolt (e.g., a communication link) indicates a wireless transmission between a UE and a serving base station, or a desired transmission between base stations and a backhaul transmission between base stations, where a serving base station is a base station designated to serve the UE on a downlink and / or uplink. In some scenarios, a UE may operate as a base station or other network node. Backhaul communications between base stations of the wireless network 100 may occur using wired and / or wireless communication links.

[0046] In operation at the wireless network 100, base stations 105a-105c use 3D beamforming and cooperative spatial technologies such as coordinated multi-point (CoMP) or multi-connectivity to serve UEs 115a and 115b. Macro base station 105d performs backhaul communications with base stations 105a-105c and small cell base station 105f. Macro base station 105d also transmits multicast services subscribed to and received by UEs 115c and 115d. Such multicast services may include mobile TV or streaming video, or may include other services for providing community information, such as weather emergencies or alerts such as Amber Alerts or Gray Alerts.

[0047] The wireless network 100 of the embodiment supports mission-critical communications with ultra-reliable and redundant links for mission-critical devices such as UE 115e as a drone. The redundant communication links with UE 115e include from macro base stations 105d and 105e and small cell base station 105f. Other machine-type devices such as UE 115f (thermometer), UE 115g (smart meter) and UE 115h (wearable device) can communicate directly with base stations such as small cell base station 105f and macro base station 105e through the wireless network 100, or in a multi-hop configuration by communicating with another user device that relays its information to the network, such as UE 115f communicating temperature measurement information to smart meter UE 115g, which is then reported to the network through small cell base station 105f. The wireless network 100 can also provide additional network efficiency through dynamic, low-latency TDD / FDD communications (such as in a vehicle-to-vehicle (V2V) mesh network between UE 115i-115k communicating with macro base station 105e).

[0048] Figure 2 It shows that it can be Figure 1 1 and 115. For a restricted association scenario (as described above), the base station 105 may be Figure 1 The small cell base station 105f in the example of FIG. 105 is a small cell base station 105f, and the UE 115 may be a UE 115c or 115D operating in the service area of ​​the base station 105f. To access the small cell base station 105f, the UE 115c or 115D will be included in the list of accessible UEs of the small cell base station 105f. The base station 105 may also be some other type of base station. Figure 2 As shown in FIG. 1 , the base station 105 may be equipped with antennas 234a through 234t and the UE 115 may be equipped with antennas 252a through 252r for facilitating wireless communication.

[0049] At the base station 105, the transmit processor 220 may receive data from the data source 212 and control information from the controller / processor 240. The control information may be for a physical broadcast channel (PBCH), a physical control format indicator channel (PCFICH), a physical hybrid ARQ (automatic repeat request) indicator channel (PHICH), a physical downlink control channel (PDCCH), an enhanced physical downlink control channel (EPDCCH), an MTC physical downlink control channel (MPDCCH), etc. The data may be for a PDSCH, etc. The transmit processor 220 may process (e.g., encode and symbol map) the data and the control information to obtain data symbols and control symbols, respectively. The transmit processor 220 may also generate reference symbols, such as for a primary synchronization signal (PSS) and a secondary synchronization signal (SSS), and a cell-specific reference signal. The transmit (TX) multiple-input multiple-output (MIMO) processor 230 may perform spatial processing (e.g., precoding) on ​​data symbols, control symbols, and / or reference symbols, if applicable, and may provide output symbol streams to modulators (MODs) 232a to 232t. Each modulator 232 may process a corresponding output symbol stream (e.g., for OFDM, etc.) to obtain an output sample stream. Each modulator 232 may additionally or alternatively process (e.g., convert to analog, amplify, filter, and upconvert) the output sample stream to obtain a downlink signal. The downlink signals from modulators 232a through 232t may be transmitted via antennas 234a through 234t, respectively.

[0050] At the UE 115, antennas 252a to 252r may receive downlink signals from the base station 105 and may provide received signals to demodulators (DEMODs) 254a to 254r, respectively. Each demodulator 254 may condition (e.g., filter, amplify, downconvert, and digitize) a corresponding received signal to obtain input samples. Each demodulator 254 may further process the input samples (e.g., for OFDM) to obtain received symbols. A MIMO detector 256 may obtain received symbols from the demodulators 254a to 254r, perform MIMO detection on the received symbols (if applicable), and provide detected symbols. A receive processor 258 may process (e.g., demodulate, deinterleave, and decode) the detected symbols, provide decoded data for the UE 115 to a data sink 260, and provide decoded control information to a controller / processor 280. A channel processor may determine a reference signal received power (RSRP), a received signal strength indicator (RSSI), a reference signal received quality (RSRQ), a channel quality indicator (CQI), and the like.

[0051] On the uplink, at the UE 115, the transmit processor 264 may receive and process data from a data source 262 (e.g., for a physical uplink shared channel (PUSCH)) and control information from a controller / processor 280 (e.g., for a physical uplink control channel (PUCCH)). The received and processed control information may include reports including RSRP, RSSI, RSRQ, CQI, etc. The transmit processor 264 may also generate reference symbols for reference signals. The symbols from the transmit processor 264 may be precoded by the TX MIMO processor 266 (if applicable), further processed by the modulators 254a to 254r (e.g., for SC-FDM, etc.), and transmitted to the base station 105. At the base station 105, the uplink signal from the UE 115 may be received by the antenna 234, processed by the demodulator 232, detected by the MIMO detector 236 (if applicable), and further processed by the receive processor 238 to obtain decoded data and control information transmitted by the UE 115. Processor 238 may provide decoded data to a data sink 239 and decoded control information to controller / processor 240 .

[0052] The controllers / processors 240 and 280 may direct the operation at the base station 105 and the UE 115, respectively. The controller / processor 240 and / or other processors and modules at the base station 105, and / or the controller / processor 280 and / or other processors and modules at the UE 115 may perform or direct the execution of various processes for the techniques described herein, such as performing or directing the execution of Figure 3-Figure 5 105 and UE 115. The memory 242 and 282 may store data and program codes for the base station 105 and the UE 115, respectively. The scheduler 244 may schedule the UE for data transmission on the downlink and / or uplink.

[0053] Wireless communication systems operated by different network operating entities (e.g., network operators) may share spectrum. In some cases, a network operating entity may be configured to use the entire designated shared spectrum at least for a period of time before another network operating entity uses the entire designated shared spectrum for a different period of time. Therefore, in order to allow network operating entities to use the entire designated shared spectrum and to mitigate interfering communications between different network operating entities, certain resources (e.g., time) may be divided and allocated to different network operating entities for certain types of communications.

[0054] For example, a network operating entity may be allocated certain time resources reserved for exclusive communication by the network operating entity using the entire shared spectrum. A network operating entity may also be allocated other time resources where the entity is given priority over other network operating entities for communication using the shared spectrum. If the prioritized network operating entities do not use these resources, then these time resources prioritized for use by the network operating entity may be utilized on an opportunistic basis by other network operating entities. Additional time resources may be allocated to any network operator for use on an opportunistic basis.

[0055] Arbitration of access to shared spectrum and time resources between different network operating entities can be centrally controlled by a separate entity, autonomously determined by a predefined arbitration scheme, or dynamically determined based on interactions between wireless nodes of the network operator.

[0056] In some cases, the UE 115 and the base station 105 may operate in a shared radio spectrum band, which may include licensed or unlicensed (e.g., contention-based) spectrum. In the unlicensed frequency portion of the shared radio spectrum band, the UE 115 or base station 105 may conventionally perform a medium sensing process to compete for access to the spectrum. For example, the UE 115 or base station 105 may perform a listen-before-talk (LBT) process, such as a clear channel assessment (CCA), before communicating to determine whether the shared channel is available. CCA may include an energy detection process to determine whether there are any other active transmissions. For example, a device may infer that a change in a received signal strength indicator (RSSI) of a power meter indicates that the channel is occupied. Specifically, a signal power concentrated in a certain bandwidth and exceeding a predetermined noise floor may indicate another wireless transmitter. CCA may also include detection of a specific sequence indicating channel use. For example, another device may send a specific preamble before sending a data sequence. In some cases, the LBT process may include the wireless node adjusting its own backoff window based on the amount of energy detected on the channel and / or acknowledgement / negative acknowledgement (ACK / NACK) feedback for its own transmitted packets as a proxy for collisions.

[0057] The UE may send uplink control information and payload data to the base station. In some communication systems, the UE may send uplink control information on an uplink channel such as a physical uplink shared channel (PUSCH). For example, the UE may multiplex uplink control information and payload data on the PUSCH. The UE may use a common modulation order to send uplink control information and payload data. The UE may back off the code rate of the uplink control information relative to the payload data to improve the reliability of the uplink control information relative to the payload data. For example, the uplink control information may be sent using a code rate that is reduced relative to the payload data, thereby resulting in a reduced possibility of loss and / or error in the transmission of the uplink control information. However, the use of the modulation order and back off code rate associated with the payload data may result in relatively poor network performance and / or relatively inefficient network resource utilization. For example, if the code rate of the uplink control information is reduced, using the same modulation order for the uplink control information and the payload data may result in a mismatch between the modulation order and the code rate, such as a modulation order that is larger than required. This mismatch may result in inefficient uplink control information transmission.

[0058] Some aspects described herein may determine to apply a first modulation and coding scheme to uplink control information that is different from the modulation and coding scheme used for payload data. For example, a different modulation and coding scheme may be used for high priority uplink control information. In some cases, UCI may be multiplexed and transmitted on a low priority PUSCH (e.g., such as for some enhanced mobile broadband (eMBB) use cases). In particular, if uplink control information is multiplexed with payload data on the PUSCH, it may be advantageous to use a different modulation and coding scheme for the uplink control information than for the payload data. As an example, if Figure 8As shown, transmission 800 may include uplink control information 802 and payload data 804. Uplink control information 802 may be multiplexed with payload data 804, and transmission 800 may be a PUSCH transmission. Different modulation and coding schemes may be used in the transmission of uplink control information 802 than in the transmission of payload data 804. For example, if uplink control information 802 is high priority, such as indicated by a priority indicator received from a base station, and payload data 804 or transmission 800 is generally not high priority, the MCS used for the transmission of uplink control information 802 may be different from the MCS used for payload data 804. In some embodiments, uplink control information 802 may include multiple different parts, and different MCSs may be used for different parts of uplink control information 802. The use of different MCS schemes may be based on operating conditions or desired operating characteristics. Different MCS schemes may be determined based on many factors.

[0059] In some aspects, the determination of the first modulation and coding scheme may be based at least in part on a determination of whether to apply a modulation order upper limit when determining the first modulation and coding scheme. For example, the UE may determine a modulation order and / or code rate of a first modulation and coding scheme for uplink control information that is different from a modulation order and / or code rate of a second modulation and coding scheme for payload data. The UE may determine whether to implement a modulation and coding scheme different from the modulation and coding scheme for payload data for uplink control information based on information (such as one or more upper limit enabling parameters) received from a base station in a radio resource control (RRC) configuration communication or a downlink control information message, and whether to implement a modulation order upper limit when determining a modulation and coding scheme for uplink control information. In addition, for various parts of the uplink control information, such as for HARQ-ACK, a first part of the channel state information, and a second part of the channel state information, a determination may be made as to whether to apply different modulation and coding schemes and whether to apply a modulation order upper limit when determining different modulation and coding schemes.

[0060] Figure 3 3 is a diagram illustrating an example 300 of uplink control information transmission according to some embodiments of the present disclosure. Figure 3 As shown, diagram 300 includes UE 115 in communication with base station 105 .

[0061] like Figure 3As further shown, the UE 115 may receive a downlink control information message 305 from the base station 105. The downlink control information message 305 may be, for example, a downlink control information scheduling message for a physical downlink shared channel, such as a downlink control information scheduling message associated with a hybrid automatic repeat request acknowledgement (HARQ-ACK). The downlink control information message 305 may indicate to the UE 115 whether to use a first modulation and coding scheme different from a second modulation and coding scheme used for transmission of payload data on the PUSCH by the UE 115 for transmission of uplink control information multiplexed by the UE 115 on the PUSCH. Alternatively or additionally, the downlink control information message 305 may indicate to the UE 115 whether to apply a modulation order upper limit when determining the modulation and coding scheme used when transmitting the uplink control information on the PUSCH by the UE 115.

[0062] The format of the downlink control information message 305 may indicate whether different modulation and coding schemes are applied when sending uplink control information and / or whether a modulation order cap is applied when determining a modulation and coding scheme for uplink control information. For example, the use of downlink control information (DCI) format 1_2 by the base station 105 may indicate to the UE 115 that one or more varied MCSs are implemented. In some deployments, the DCI format may indicate: different modulation and coding schemes are implemented for uplink control information, modulation order caps are implemented for the modulation and coding schemes of the uplink control information, or both. In some embodiments, the downlink control information message 305 (such as a downlink control information message including downlink control information of DCI format 1_2) may include a priority indicator. A high priority indicator such as priority indicator 1 may indicate to the UE 115 that different modulation and coding schemes are implemented for uplink control information, modulation order caps are implemented for different modulation and coding schemes of uplink control information, or both. A low priority indicator, such as a priority indicator of 0, may indicate to the UE 115 to avoid implementing a different modulation and coding scheme for the uplink control information and / or to implement a modulation order cap on the modulation and coding scheme of the uplink control information. For example, in some embodiments, the UE 115 may use the format of the DCI message 305 to determine whether to use a different modulation and coding scheme, and may use the priority indicator of the DCI message 305 to determine whether to use the modulation order cap when determining the different modulation and coding scheme. In some embodiments, the UE may be configured by default or by other parameters to use a different modulation and coding scheme for high priority uplink control information, and the format and / or priority indicator of the DCI message 305 may be used to determine whether to apply the modulation order cap. In some embodiments, a separate priority indicator of the DCI message 305 may be included to indicate the use of a different modulation and coding scheme and to implement a modulation order cap. The high priority uplink control information may, for example, include uplink control information associated with a high priority indicator received from a base station indicating that the UE designates the uplink control information as a high priority. The low priority uplink control information may include, for example, uplink control information that is not associated with a high priority indicator received from the base station or is associated with a low priority indicator received from the base station.

[0063] In some embodiments, instead of or in addition to the downlink control information message 305, the UE 115 may receive an RRC communication from the base station 105. For example, for semi-statically configured uplink control information, such as P-CSI, a radio resource control (RRC) communication may be sent from the base station 105 to the UE 115. The RRC communication may indicate to the UE whether to implement a modulation and coding scheme different from the modulation and coding scheme used for the payload data for the uplink control information, to implement a modulation order upper limit for the first modulation and coding scheme of the uplink control information, or both. For example, the RRC communication may include an upper limit enabling parameter, a modulation and coding scheme adjustment parameter, or both. As an example, a high upper limit enabling parameter in the RRC communication may indicate to the UE 115 that a modulation order upper limit is applied when determining the modulation and coding scheme for the uplink control information. The high modulation and coding scheme distinguishing parameter may indicate to the UE 115 that a modulation order different from the modulation order applied to the payload data is applied to the first modulation and coding scheme used to send the uplink control information. In some embodiments, UE 115 may be configured by default or through another communication to use a different modulation and coding scheme for uplink control information, and may determine whether to apply a modulation order cap when determining the different modulation and coding scheme based on parameters in a received RRC communication.

[0064] In process 310, the UE 115 may determine a modulation and coding scheme for uplink control information using the received downlink control information message 305 or based on the received RRC communication. For example, the UE 115 may determine whether to apply a first modulation and coding scheme different from the modulation and coding scheme applied to the payload data to the uplink control information, and whether to apply a modulation order upper limit when determining the first modulation and coding scheme. The determination of the modulation and coding scheme may include a determination of a modulation order of the modulation and coding scheme and a determination of a code rate of the modulation and coding scheme. The determination of the modulation order may include a determination of whether to apply a modulation order upper limit when determining the modulation order. If the determination of applying the modulation order upper limit when determining the modulation order is made by the UE 115, the UE 115 may determine a modulation order of the modulation and coding scheme applied to the uplink control information that is less than or equal to the modulation order specified by the modulation order upper limit. The UE 115 may determine a downlink control information scheduling of a physical downlink shared channel associated with a hybrid automatic repeat request acknowledgement (HARQ-ACK). In some embodiments, UE 115 may also segment the uplink control information.

[0065] The determination by the UE 115 whether to apply a modulation and coding scheme different from that applied to the payload information to the high priority uplink control information and / or whether to implement a modulation order cap when determining the modulation order of the modulation and coding scheme for the uplink control information may be based on one or more aspects of the received downlink control information message 305. For example, such a determination may be based on the format of the downlink control information message 305, one or more priority indicators of the received downlink control information message 305, or both. In some embodiments, upon receiving the downlink control information message 305, the UE 115 may determine the format of the downlink control information message 305. If the downlink control information message has a predetermined format, such as DCI format 1_2, the UE 115 may determine to apply a modulation and coding scheme different from that applied to the payload data to the uplink control information, may determine to apply a modulation order cap when determining the modulation and coding scheme to be applied to the uplink control information, or both. In some embodiments, the UE 115 may also determine whether to apply a modulation and coding scheme different from the modulation and coding scheme applied to the payload data, such as a different modulation order, to the uplink control information based on the state of one or more priority indicators included in the downlink control information message 305, such as a downlink control information message with DCI format 1_2, and / or whether to apply a modulation order upper limit when determining the modulation and coding scheme to be applied to the uplink control information. For example, the downlink control information message 305 may include a priority indicator. If the priority indicator is high, the UE 115 may determine that a modulation and coding scheme different from the modulation and coding scheme applied to the payload data is applied to the uplink control information, and the modulation upper limit is applied when determining the modulation order of the modulation and coding scheme for the downlink control information. In some embodiments, a separate priority indicator or other variable may be included in the downlink control information message 305 to indicate whether a modulation and coding scheme different from the modulation and coding scheme applied to the payload data is applied to the uplink control information and whether the modulation order upper limit is applied when determining the modulation order of the modulation and coding scheme for the uplink control information. Thus, in one possible configuration, based on the first indicator, a modulation order different from the modulation order applied to the payload data may be applied to the uplink control information, but based on the second indicator, the modulation order upper limit may not be applied. If the UE 115 determines that a format other than DCI format 1_2 is used for the downlink control information message 305 and / or the priority indicator indicates a low state, such as low priority, the UE 115 may determine to apply the same modulation and coding scheme to the uplink control information and the payload data and / or avoid applying the modulation order upper limit when determining the modulation and coding scheme for the uplink control information.

[0066] In some embodiments, the UE 115 may determine the modulation and coding scheme to be applied to the uplink control information based on the received RRC communication. For example, when determining the modulation and coding scheme for the primary channel state uplink control information, information from the RRC configuration communication may be used. The UE 115 may determine whether to apply a modulation and coding scheme different from the modulation and coding scheme applied to the payload data to the uplink control information and / or whether to apply a modulation order upper limit when determining the modulation order of the modulation and coding scheme for the uplink control information based on one or more RRC configuration enable / disable parameters received in the RRC communication. For example, the UE 115 may determine in process 310 to apply different modulation and coding schemes to the uplink control information and to use a modulation order upper limit when determining the modulation order of the modulation and coding scheme for the uplink control information based on the high state of a single parameter received in the RRC communication. In some embodiments, a first parameter may be included in an RRC configuration communication for indicating whether to use a different modulation and coding scheme for uplink control information, and a second parameter may be included in an RRC configuration communication for indicating to apply a modulation upper limit when determining a modulation order of a modulation and coding scheme for uplink control information. In some embodiments, UE 115 may be configured by default or by another parameter to apply a different modulation and coding scheme to uplink control information, and may determine whether to apply a modulation order upper limit when determining a modulation and coding scheme for uplink control information based on an upper limit activation parameter received in an RRC communication.

[0067] In some embodiments, the UE 115 may also determine whether to apply a different modulation and coding scheme to the uplink control information and / or whether to apply a modulation order upper limit when determining the different modulation and coding schemes based on the priority of the physical uplink shared channel (PUSCH) on which the uplink control information is to be sent. For example, if the uplink control information is multiplexed on a low priority PUSCH, the UE 115 may determine to use a modulation and coding scheme different from the modulation and coding scheme used for the payload data for the uplink control information based on the low priority of the PUSCH and / or to apply a modulation order upper limit when determining the modulation order of the modulation and coding scheme used for the uplink control information. If the uplink control information is multiplexed on a high priority PUSCH, the UE 115 may determine to use the same modulation order and modulation and coding scheme for the uplink control information and the payload data based on the high priority of the PUSCH and / or avoid applying the modulation order upper limit when determining the modulation and coding scheme. The priority of the PUSCH may be determined, for example, based on a priority indicator included in the downlink control information that schedules the PUSCH. For example, if the DCI scheduling the PUSCH indicates that the PUSCH on which the uplink control information will be multiplexed is of low priority, or there is no priority indicator in the DCI scheduling the PUSCH, the UE can determine that the PUSCH is of low priority. If an indicator that the priority of the PUSCH is high is included in the DCI scheduling the PUSCH, the UE can determine that the PUSCH is of high priority. Therefore, in some embodiments, whether to use a modulation and coding scheme different from the modulation and coding scheme used for payload data for the uplink control information and whether to apply the modulation order upper limit when determining the modulation order of the modulation and coding scheme used for the uplink control information can be based on the format of the received downlink control information, one or more parameters such as a priority parameter contained in the downlink control information, and the priority of the PUSCH on which the uplink control information is to be sent. Alternatively or additionally, the determination of whether to use a modulation and coding scheme different from the modulation and coding scheme used for payload data for the uplink control information and whether to apply a modulation order upper limit when determining the modulation order of the modulation and coding scheme used for the uplink control information can be based on one or more parameters received in the RRC configuration communication and the priority of the PUSCH on which the uplink control information is to be sent.

[0068] In some embodiments, the UE 115 may receive one or more beta_offset values ​​from the base station 105 for determining a code rate for a modulation and coding scheme for uplink control information. The beta_offset value may be used to determine a scaled-down code rate for a modulation and coding scheme for transmission of high priority uplink control information. The reduction in code rate may improve the reliability of transmission of the uplink control information. For example, a beta_offset value may be specified for determining the code rate so that the code rate of the uplink control information is equal to the code rate of the payload data of the PUSCH divided by the beta_offset value. In some embodiments, separate beta offsets may be received for different portions of the uplink control information. For example, separate beta offsets may be received for a HARQ-ACK such as a high priority HARQ-ACK, a first portion of channel state information such as CSI-part1, and a second portion of channel state information such as CSI-part2. In some embodiments, the information received from the base station 105 in the downlink control information message 305 may indicate that a different modulation and coding scheme is applied to only a portion of the uplink control information, such as applied to one or more of the HARQ-ACK, the first portion of the channel state information, and the second portion of the channel state information. In addition, in some embodiments, the information received from the base station 105 in the downlink control information message 305 may indicate that the modulation order upper limit is applied only when determining the modulation order of the modulation and coding scheme for the portion of the channel state information. The base station 105 may instruct the UE 115 to apply the modulation order upper limit when determining the modulation order of the modulation and coding scheme for at least one of the HARQ-ACK, the first portion of the channel state information, and the second portion of the channel state information. In some embodiments, a separate indication of whether the modulation order upper limit is applied to each of the HARQ-ACK, the first portion of the channel state information, and the second portion of the channel state information may be sent in the downlink control information message 305 (such as a separate priority indicator or other parameter), or in an RRC configuration communication (such as a separate RRC configuration enable / disable parameter). For example, when high priority uplink control information is multiplexed on the PUSCH without uplink shared channel payload data, the UE 115 may determine that the modulation order upper limit is applied only when determining the modulation and coding scheme for the HARQ-ACK of the uplink control information, and not to apply the modulation order upper limit to the channel state information sent on the PUSCH.

[0069] Based on whether different modulation and coding schemes are used for uplink control information and whether the modulation order upper limit is applied, UE 115 can determine the modulation and coding scheme to be applied to the uplink control information. The determination of the modulation and coding scheme may include, for example, the determination of the modulation order and code rate of the modulation and coding scheme. For example, UE 115 may determine the spectral efficiency of the uplink control information transmission based at least in part on the spectral efficiency and beta offset value of PUSCH. In this case, UE 115 may determine the maximum index of the modulation and coding scheme in the modulation and coding scheme table so that the product of the code rate of the determined modulation and coding scheme and the orthogonal amplitude modulation (QAM) order is less than the spectral efficiency of the uplink control information described and determined above. For example, UE 115 may determine the code rate and QAM order associated with the index value in the modulation and coding scheme table that is less than the spectral efficiency of the uplink control information transmission. In this case, UE 115 may select the code rate of the QAM order of the modulation used for the uplink control information transmission and the code rate of the polarity code rate used for the uplink control information transmission. When determining the order of the modulation and coding scheme (such as the QAM order), if the UE 115 has determined to apply the modulation order upper limit, the UE 115 can apply the modulation order upper limit. For example, the UE 115 can determine the order of the modulation and coding scheme that is not greater than the order specified by the modulation order upper limit, such as the QAM order. In some aspects, the UE 115 can perform rate matching based at least in part on the beta offset value. For example, the UE 115 can determine the modulation order of the modulation and coding scheme based at least in part on the modulation order upper limit. The UE 115 can then apply the determined modulation and coding scheme to the uplink control information and can generate an uplink control information message 315. The UE 115 can then send the uplink control information message 315 to the base station 105. The uplink control information contained in the message 315 can be, for example, dynamically scheduled uplink control information (such as HARQ-ACK information), or semi-statically configured uplink control information (such as P-CSI information).

[0070] In some embodiments, the UE 115 may determine the code rate of the modulation and coding scheme for the uplink control information based at least in part on the order of the modulation and coding scheme, such as the QAM order. For example, the UE 115 may select the QAM order from the modulation and coding scheme table and may determine the code rate as the quotient of the spectral efficiency of the uplink control information transmission and the value of the QAM order. In some embodiments, the UE 115 may determine the code rate based at least in part on a scaling factor. For example, the UE 115 may scale the code rate for the uplink control information relative to the code rate for PUSCH based at least in part on the scaling of the QAM order for the uplink control information relative to the QAM order for PUSCH and the beta offset value. Additionally or alternatively, the UE 115 may scale the resource element allocation for the uplink control information relative to the resource allocation for PUSCH based at least in part on the scaling of the QAM order for the uplink control information relative to the QAM order for PUSCH and the beta offset value.

[0071] In some embodiments, the UE 115 may determine resource allocation related to the modulation and coding scheme used for uplink control information transmission. For example, the UE 115 may determine the number of resource elements used for uplink control information transmission based at least in part on the number of bits of the uplink control information to be sent and the spectral efficiency of the uplink control information. In this case, the number of resource elements RE may be equal to the quotient of the number of bits of the uplink control information and the spectral efficiency of the uplink control information described and determined above (e.g., based on the QAM order, based on the code rate, etc.) or the actual spectral efficiency achievable by the uplink control information (based on the QAM order, based on the code rate, etc.). In other words, the UE 115 may determine the result of #RE=nBits_UCI / SE_UCI*, where #RE is the number of resource elements to which resources are allocated, nBits_UCI represents the number of bits of the uplink control information, and SE_UCI* represents the actual spectral efficiency of the uplink control information determined at least in part based on the calculated maximum spectral efficiency, the code rate, and the QAM order, as described above.

[0072] In some embodiments, the UE 115 may include one or more additional resource elements based at least in part on the number of bits of the uplink control information and the spectral efficiency. For example, the UE 115 may determine that all resource elements and a portion of resource elements of a first number will be used to transmit the uplink control information, and may determine to allocate full resource elements rather than partial resource elements for the uplink control information transmission. In some embodiments, the UE 115 may determine resource allocation for the PUSCH. For example, the UE 115 may determine the number of remaining resource elements after allocating one or more resource elements for the uplink control information transmission, and may allocate the remaining resource elements for the PUSCH.

[0073] The UE may determine to apply a modulation and coding scheme different from that applied to the payload data to the uplink control information. The UE may also determine whether to cap the modulation order of the modulation and coding scheme used for the uplink control information. In the context of high priority uplink control information being multiplexed with payload data on the PUSCH, using different modulation and coding schemes and capping the modulation order of the modulation and coding schemes may be useful. An example method for determining the modulation and coding scheme for the uplink control information by the UE is as follows: Figure 4 As shown. The method may begin at step 400 by determining to apply a first modulation and coding scheme different from a second modulation and coding scheme applied to payload data to the transmission of uplink control information. The uplink control information may be uplink control information to be multiplexed with payload data such as a PUSCH on a PUSCH. For example, the UE may receive a communication from a base station specifying the use of a different modulation and coding scheme for the uplink control information. For example, the first modulation and coding scheme may have a modulation order and / or code rate different from the second modulation and coding scheme. In some cases, it may be determined that the different modulation and coding scheme is applied only to a portion of the uplink control information, such as a HARQ-ACK, but not to the first and second portions of the channel state information, or only to the HARQ-ACK and the first portion of the channel state information, but not to the second portion of the channel state information. If the uplink control information multiplexed on the PUSCH is of low priority, the UE may determine to apply the same modulation and coding scheme to both the uplink control information and the payload data.

[0074] In some embodiments, such as embodiments involving transmission of semi-statically configured uplink control information (such as P-CSI), information specifying whether to use different modulation and coding schemes may be received by the UE in a radio resource control (RRC) communication (such as an enable / disable parameter in one or more RRC configurations. For example, the RRC configuration enable / disable parameter, when high, may indicate the use of different modulation and coding schemes for uplink control information. If the RRC configuration enable / disable parameter is low, a determination may be made by the UE to use the same modulation and coding scheme for the uplink control information and payload data. In some embodiments, the determination to use different modulation and coding schemes may be based on a single parameter indicating the use of a modulation order upper limit and the modulation order upper limit is applied when determining the different modulation and coding schemes.

[0075] In some embodiments, such as embodiments involving uplink control information for dynamic scheduling of transmission such as HARQ-ACK, information specifying whether to use different modulation and coding schemes can be received by the UE in downlink control information such as downlink control information for scheduling PDSCH associated with HARQ-ACK. For example, the determination of whether to use different modulation and coding schemes can be based on the format of the received downlink control information. If the downlink control information has DCI format 1_2, the UE can determine to use different modulation and coding schemes. If the downlink control information has another DCI format, such as DCI format 1_1, the UE can determine to use the same modulation and coding scheme for both the uplink control information and the payload data. In some embodiments, the DCI communication from the base station (such as a DCI message of DCI format 1_2) can also include one or more priority indicators. In addition or in lieu of the format of the DCI message, the priority indicator can also be used to determine whether to use different modulation and coding schemes. For example, even if a DCI message of format 1_2 is received, if the priority indicator of the DCI message is low, the UE can determine to use the same modulation and coding scheme for the uplink control information and the payload data. If a DCI message of format 1_2 is received and the priority indicator of the DCI message is high, the UE may determine to use a different modulation and coding scheme.

[0076] In some embodiments, the determination of whether to use a different modulation and coding scheme in step 400 may also be performed based on one or more characteristics of the PUSCH on which the uplink control information is multiplexed. In some embodiments, if the uplink control information is multiplexed on a high priority PUSCH, the UE may apply the same modulation and coding scheme regardless of the received downlink control information and / or RRC information. In some embodiments, if the uplink control information is multiplexed on a low priority PUSCH, the UE may determine whether to use a different modulation and coding scheme for the uplink control information based on the received downlink control information and / or the received RRC communication.

[0077] When the UE determines that a different modulation and coding scheme is used for the uplink control information than for the payload data, the UE may also determine at step 401 whether to apply a modulation order upper limit when determining different modulation and coding schemes for the uplink control information. For example, in some cases, code rate adjustment may make the lower modulation order of the different modulation and coding schemes more suitable. In this case, applying a modulation order upper limit to limit the modulation order of the modulation and coding scheme used for the uplink control information may improve system efficiency and performance by limiting the modulation order of the uplink control information. The UE may determine whether to apply the modulation order upper limit when determining the first modulation and coding scheme for the uplink control information in a manner similar to determining that different modulation and coding schemes are used for the uplink control information. For example, the UE may determine whether to apply the modulation order upper limit based on information received from the base station in an RRC communication or in a downlink control information message. The RRC communication and / or the downlink control information message may include an upper limit enabling parameter. In some cases, it may be determined that the modulation order upper limit applies when determining the modulation and coding scheme for a portion of uplink control information (such as HARQ-ACK) instead of the first and second portions of channel state information, or for HARQ-ACK and the first portion of channel state information instead of the channel state information.

[0078] In some embodiments, such as embodiments involving transmission of semi-statically configured uplink control information (such as P-CSI), information such as an upper limit enabling parameter specifying whether to use a modulation order upper limit when determining a modulation and coding scheme for control information for the uplink can be received by the UE in a radio resource control (RRC) communication. The upper limit enabling parameter can, for example, include one or more RRC configuration enable / disable parameters. For example, when the RRC configuration enable / disable parameter is high, it can be indicated that the modulation order upper limit is used when determining different modulation and coding schemes for uplink control information. If the RRC configuration enable / disable parameter is low, it can be determined that the modulation order upper limit is not applied. In some embodiments, the use of different modulation and coding schemes can be determined based on a single parameter indicating the application of the modulation order upper limit. For example, when different modulation and coding schemes are used for uplink control information, the modulation order upper limit can always be implemented. Alternatively, when high priority uplink control information is multiplexed on a low priority PUSCH, the UE can be configured to always use different modulation and coding schemes, and therefore can receive a single parameter indicating whether to apply the modulation order upper limit when determining the modulation and coding scheme for the uplink control information. In some embodiments, separate RRC configuration parameters may be received by the UE, wherein a first RRC configuration parameter indicates to the UE whether to apply a different modulation and coding scheme to uplink control information, and a second RRC configuration parameter indicates to the UE whether to apply a modulation order cap when determining the different modulation and coding schemes. Such functionality would, for example, enable the UE to apply a different modulation and coding scheme to uplink control information without implementing a modulation order cap. In some embodiments, the UE may receive information in an RRC communication specifying a particular modulation order cap to be implemented.

[0079] In some embodiments, such as embodiments involving uplink control information for dynamic scheduling of transmissions such as HARQ-ACK, information specifying whether to use a modulation order upper limit may be received by the UE in downlink control information, such as downlink control information for scheduling a PDSCH associated with HARQ-ACK. For example, the determination of whether to apply the modulation order upper limit may be based on an upper limit enabling parameter received in the downlink control information. The upper limit enabling parameter may, for example, include a format of the received downlink control information and / or one or more priority indicators included in the downlink control information. If the downlink control information has a DCI format 1_2, the UE may determine to apply the modulation order upper limit. For example, the use of DCI format 1_2 may indicate to the UE both the use of different modulation and coding schemes for the uplink control information and the application of the modulation order upper limit when determining the different modulation and coding schemes. Alternatively, if the uplink control information is multiplexed on a low priority PUSCH, the UE may be configured to apply different modulation and coding schemes by default, and may determine whether to apply the modulation order upper limit when determining the different modulation and coding schemes based on the format of the downlink control information. If the downlink control information has another DCI format, such as DCI format 1_1, the UE can determine to avoid using the modulation order upper limit. In some embodiments, the DCI communication from the base station (such as a DCI message of DCI format 1_2) may also include one or more priority indicators. In addition to or in place of the format of the DCI message, the priority indicator may also be used in determining whether to use the modulation order upper limit. For example, even if a DCI message of format 1_2 is received, if the priority indicator of the DCI message is low, the UE may determine to avoid applying the modulation order upper limit. For example, in some embodiments, the DCI message format may be used to determine whether to use a different modulation and coding scheme for the uplink control information, and the DCI format indicator may be used by the UE to determine whether to apply the modulation order upper limit in determining the different modulation and coding schemes. For example, if a DCI message of format 1_2 is received and the priority indicator of the DCI message is high, the UE may determine to use a different modulation and coding scheme and apply the modulation order upper limit when determining the modulation order of the different modulation and coding schemes. In some cases, such functionality will enable the UE to determine to use a different modulation and coding scheme for uplink control information while forgoing application of the modulation order upper limit in determining the different modulation and coding scheme. In some embodiments, the UE may receive information in the downlink control information specifying a particular modulation order upper limit to be implemented.

[0080] In some embodiments, the determination of whether to apply the modulation order upper limit in step 401 may also be performed based on one or more characteristics of the PUSCH on which the uplink control information is multiplexed. In some embodiments, if the uplink control information is multiplexed on a high priority PUSCH, the UE may apply the same modulation and coding scheme regardless of the received downlink control information and / or RRC information, and may therefore forgo applying the modulation order upper limit. In some embodiments, if the uplink control information is multiplexed on a low priority PUSCH, the UE may determine whether to use a different modulation and coding scheme for the uplink control information, and whether to apply the modulation order upper limit, based on the received downlink control information and / or the received RRC communication.

[0081] In some embodiments, the UE may receive an indication of an offset value from a code rate of a second modulation and coding scheme for payload data transmission at step 402. For example, the base station may send an indication of an offset value from a code rate of a modulation and coding scheme for payload data transmission to the UE for determining code rates of different coding and modulation schemes for uplink control information. For example, the received offset value may be a beta_offset value that, when used to divide the code rate of the modulation and coding scheme for payload data for PUSCH, may produce a code rate of the modulation and coding scheme for uplink control information. The beta_offset value may be sent in RRC configuration information, in downlink control information, or via another communication transmission. In some embodiments, multiple beta_offset values ​​may be received by the UE for determining multiple modulation and coding schemes for multiple parts of the uplink control information. For example, separate beta_offset values ​​may be received for HARQ_ACK, for a first part of the channel state information, and for a second part of the channel state information. A separate beta_offset value may be used to determine the code rate of the modulation and coding scheme for each of the HARQ_ACK, the first part of the channel state information, and the second part of the channel state information.

[0082] The UE may determine the modulation and coding scheme for the uplink control information at step 403 based at least in part on the determination of whether to apply the modulation order upper limit. If the UE determines to avoid using different modulation and coding schemes for the uplink control information, the UE may use the same modulation and coding scheme for the uplink control information and the payload data multiplexed on the PUSCH. However, if the UE determines to use different modulation and coding schemes, the UE may determine the modulation order and / or code rate of the different modulation and coding schemes for the uplink control information. In some embodiments, different modulation and coding schemes with different modulation orders and / or different code rates may be determined for different parts of the uplink control information. For example, separate modulation and coding schemes may be determined for HARQ-ACK, the first part of the channel state information, and the second part of the channel state information. In some embodiments, based on the separate modulation order upper limit activation parameters for each part of the uplink control information received from the base station, the modulation order upper limit may be applied to determine the modulation and coding scheme for some parts of the uplink control information (such as HARQ-ACK and the first part of the channel state information) but not for other parts of the uplink control information (such as the second part of the channel state information). In some embodiments, different code rates may be determined for separate modulation and coding schemes for each of the HARQ-ACK, the first portion of the channel state information, and the second portion of the channel state information.

[0083] At step 403, the determination of the modulation and coding scheme may include using a modulation order upper limit to determine the modulation order of the modulation and coding scheme. For example, if at step 401, the UE determines to apply the modulation order upper limit, the UE may apply the modulation order upper limit to determine the modulation order of the modulation and coding scheme for the uplink control information. In some embodiments, the UE may include an internal modulation order upper limit, such as a modulation order upper limit set at a quadrature phase shift keying (QPSK), and the upper limit may be activated and deactivated based on information received from the base station. When determining the modulation order of the modulation and coding scheme for the uplink control information, the UE may select a modulation order less than or equal to QPSK. For example, if the upper limit is activated, the UE may reduce the modulation order of the modulation and coding scheme for the uplink control information from a predetermined level of 256QAM to QPSK. If the upper limit is not activated, the UE may continue to apply a modulation order of 256QAM. For example, in the case where the code rate of the modulation and coding scheme is low, using the modulation order upper limit when determining the modulation order may be particularly advantageous. For example, if the code rate of the modulation and coding scheme used for the uplink control information is low, such as 1 / 8, as specified by the beta_offset value, a lower modulation order (such as QPSK) may be more appropriate than a modulation order of 256QAM. In some embodiments, the modulation order upper limit can be set to a constant value and can be turned on and off based on one or more conditions such as receiving an indication from a base station that the modulation order upper limit should be applied or that the code rate of the modulation and coding scheme determined by the IE or the base station is low. The modulation order upper limit can, for example, be a parameter that specifies the maximum modulation order of the modulation and coding scheme to be considered for selection. For example, the UE can access multiple modulation and coding schemes with multiple different modulation and coding schemes. If the modulation order upper limit is activated, the UE can only consider modulation and coding schemes with a modulation order equal to or less than the maximum modulation order specified by the modulation order upper limit when determining the modulation and coding scheme to be applied to the uplink control information. As an example, the modulation order upper limit can be set to the maximum modulation order of QPSK, so that when the modulation order upper limit is enabled, the upper limit of QPSK can be applied to the modulation order of the modulation and coding scheme used for the transmission of uplink control information. In some embodiments, the upper limit can be changed based on communications received from the base station. For example, the upper limit enabling parameter received from the base station can specify the maximum modulation order used in the modulation and coding scheme when the upper limit is enabled. Therefore, for example, in some embodiments, when the code rate of the modulation and coding scheme used for uplink control information is low, the modulation order upper limit can be applied. In some embodiments, in addition to being activated and deactivated, the modulation order upper limit in the UE can be set based on information received from the base station.

[0084] Determining the modulation and coding scheme for the uplink control information at step 403 may also include determining a code rate for the modulation and coding scheme for the uplink control information. In some embodiments, the UE may determine the code rate for the modulation and coding scheme for the uplink control information based on one or more offset values ​​(such as a beta_offset value) received by the UE. For example, the UE may determine the code rate for the first modulation and coding scheme for the uplink control information by dividing the code rate of the second modulation and coding scheme for payload data multiplexed on the PUSCH by the received beta_offset value.

[0085] The UE may send the uplink control information using the determined first modulation and coding scheme at step 404. For example, the UE may send the uplink control information using the determined code rate and the determined modulation order. Thus, the UE may determine the modulation and coding scheme to apply to the uplink control information based at least in part on the determination of whether to apply the modulation order upper limit.

[0086] The base station can indicate to the UE whether to apply the modulation order upper limit. Figure 5 As shown, an example method of base station operation may begin at step 500 with determining to indicate to the UE that an upper modulation order limit is applied to a modulation and coding scheme for transmission of uplink control information. The transmission of uplink control information may be, for example, a transmission of uplink control information multiplexed with payload data on a PUSCH. In some embodiments, the base station may also determine to indicate to the UE that a modulation and coding scheme different from the modulation and coding scheme applied to the payload data sent by the UE is applied to the uplink control information sent by the UE. In some embodiments, the determination to indicate to the UE that an upper modulation order limit is applied may be based on a code rate of the modulation and coding scheme used for the uplink control information or a beta_offset value to be applied when determining the code rate. For example, if the code rate is low, such as 1 / 8, the base station may determine to indicate to the UE that an upper modulation order limit is applied when determining the modulation order of the modulation and coding scheme, such as limiting the modulation order to an upper modulation order limit of QPSK.

[0087] At step 501, the base station may send an upper limit enabling parameter to the UE indicating that a modulation order upper limit is applied to a modulation and coding scheme for uplink control information. In some embodiments, the base station may also send a parameter specifying a level for setting the upper limit. The uplink control information to which the upper limit enabling parameter is sent may include at least one of a HARQ-ACK, a first part of the channel state information, and a second part of the channel state information. Figure 4 The UE determines the basis of step 401 of the method as described above, and regarding Figure 3As described in connection with the operation of base station 105 of the present invention, the upper limit enabling parameter may be sent in an RRC communication or in a downlink control message. For example, the base station may send downlink control information with a specific format indicator (such as an indicator that the downlink control information is in format 1_2). In some embodiments, the base station may send a priority indicator (such as a high priority indicator) in the downlink control information format 1_2 as an upper limit enabling parameter indicating that the upper limit of the modulation order is applied. In some embodiments, as described in connection with Figure 4 The UE determines the basis of step 400 as described above, and regarding Figure 3 As described above with respect to the operation of the base station 105 , the base station may also send an indication to the UE to use a modulation and coding scheme different from that used for the payload data for the uplink control information.

[0088] At step 502, the base station may receive uplink control information to which a first modulation and coding scheme having an order limited by an upper limit of the modulation order has been applied. For example, the UE may receive an upper limit enabling parameter sent by the base station at step 501, and may determine a modulation and coding scheme for the uplink control information based on the upper limit enabling parameter. The UE may then send the uplink control information on a PUSCH (such as a low priority PUSCH) using the determined modulation and coding scheme, and the uplink control information may be received by the base station. Thus, the base station may send an indicator that the UE is to use to determine whether to apply the modulation order upper limit when determining the modulation and coding scheme for the uplink control information.

[0089] The UE may send uplink control information using a modulation and coding scheme based on the indication received from the base station. Fig. 9 The example method of UE operation shown in can begin at step 900 by receiving an indication to apply a modulation order upper limit when determining a first modulation and coding scheme to be applied to transmission of uplink control information, the first modulation and coding scheme being different from a modulation and coding scheme to be applied to payload data. In some embodiments, the indication to apply the modulation order upper limit can include an indication to apply the first modulation and coding scheme. In some embodiments, the indication to apply the modulation order upper limit can be received from a base station, such as in a communication regarding a first modulation and coding scheme. Figure 5 In step 902, the UE may transmit uplink control information using the modulation and coding scheme indicated by the received indication of the upper limit of the applied modulation order. Such transmission may be similar to, for example, Figure 4 In some embodiments, step 900 may be associated with the transmission described in step 404. Figure 4 For example, the received indication described in connection with step 900 may be used as described in connection with Figure 4In some embodiments, the invention relates to a basis for determining to apply a first modulation and coding scheme and / or applying a modulation order upper limit when determining the first modulation and coding scheme. Fig. 9 The steps described may be performed by a device including a processor or a memory, and / or may be included in instructions stored in a non-transitory computer-readable medium. In yet other embodiments, the device may include a computer program product for performing the Fig. 9 Describe the components of the step.

[0090] In some embodiments, the UE may receive an uplink control information transmission priority indicator indicating that the uplink control information is a high priority, and may apply a modulation and coding scheme to the transmitted uplink control information based on the high priority. Fig.10 The illustrated example method may begin at step 1000 with receiving, by a UE, an uplink control information transmission priority indicator indicating a first priority for uplink control information, wherein the first priority is greater than a second priority. The first priority may, for example, be a high priority. In some embodiments, the received uplink control information transmission priority indicator may be included in an uplink control information transmission grant. The priority indicator may be in a DCI format, as described herein, or may be included in a priority indicator information element of a DCI format, as further described herein.

[0091] In step 1002, the UE may send uplink control information using a modulation and coding scheme based on a modulation order indicated by a first priority of the uplink control information. For example, in some embodiments, the uplink control information may be sent on a PUSCH, such as multiplexed with payload data on the PUSCH. In some embodiments, when the priority of the uplink control information is higher than the priority of the payload data or the PUSCH in general, a modulation and coding scheme different from the modulation and coding scheme applied to the payload data may be applied to the uplink control information. In some embodiments, if the priority of the uplink control information is the same as or lower than the priority of the payload data and / or the PUSCH, the same modulation and coding scheme may be applied to the uplink control information and the payload data. In some embodiments, the second priority may be the priority of the payload data or the PUSCH.

[0092] In some embodiments, the modulation and coding scheme for the uplink control information may be selected based on a modulation order upper limit. For example, when the modulation and coding scheme used for the uplink control information is different from the modulation and coding scheme used for the payload data multiplexed with the uplink control information, the modulation order upper limit may be used in determining the different modulation and coding schemes used for the uplink control information. The modulation order upper limit may impose an upper limit on the modulation order of the modulation and coding scheme used to send the uplink control information having a first priority. As an example, a modulation order upper limit for QPSK may be imposed, limiting the modulation and coding scheme to be used in the transmission of the uplink control information to be less than or equal to QPSK. In some embodiments, with respect to Fig.10 The steps described may be performed by a device including a processor or a memory, and / or may be included in instructions stored in a non-transitory computer-readable medium. In yet other embodiments, the device may include a computer program product for performing the Fig.10 Describe the components of the step.

[0093] Figure 4 , Fig. 9 and Fig.10 is a block diagram showing example blocks that are executed to implement some aspects of the present disclosure. Figure 6 The example blocks are described with reference to UE 115 as shown. Figure 6 1 is a block diagram illustrating a UE 115 configured according to one aspect of the present disclosure. The UE 115 includes Figure 2 1. The UE 115 of the present invention may be a UE 115 of the present invention. For example, the UE 115 includes a controller / processor 280 that operates to execute logic or computer instructions stored in a memory 282 and controls components of the UE 115 that provide features and functions of the UE 115. Under the control of the controller / processor 280, the UE 115 transmits and receives signals via wireless radios 601a-r and antennas 252a-r. The wireless radios 601a-r include the UE 115 of the present invention. Figure 2Various components and hardware are shown, including modulators / demodulators 254a-r, MIMO detectors 256, receive processors 258, transmit processors 264, and TX MIMO processors 266. The memory 282 of the UE 115 may include modulation and coding scheme (MCS) determination logic 602. The MCS determination logic 602 may include logic for the UE 115 to determine to apply a first modulation and coding scheme for transmission of uplink control information multiplexed on the PUSCH, which is different from a second MCS applied to the payload data. The memory 282 may also include modulation order upper limit application logic 603 for determining whether to apply a modulation order upper limit when determining the first MCS. The MCS determination logic 602 may also include logic for the UE 115 to determine the first MCS to be applied based on the determination of whether to apply the modulation order upper limit. In some cases, the MCS determination logic 602 may also include logic for determining the MCS applied to the uplink control information on the PUSCH channel based on a received offset value of the code rate of the second MCS applied to the payload data. In some embodiments, the MCS determination logic 602 may also include logic to determine a priority for the PUSCH, and the determination by the MCS determination logic 602 of the MCS to be applied to the uplink control information may also be based on the priority of the PUSCH. In some embodiments, the wireless radio 601a-r of the UE 115 may perform steps including receiving an indication of an offset value from a code rate of a second MCS for payload data transmission, receiving an uplink transmission grant, receiving an indication of applying a modulation order upper limit, and sending the uplink control information using the determined first MCS.

[0094] Figure 5 is a block diagram showing example blocks that are executed to implement one aspect of the present disclosure. Figure 7 The example blocks are described with reference to eNB 105 shown. Figure 7 1 is a block diagram illustrating an eNB 105 configured according to one aspect of the present disclosure. The eNB 105 includes Figure 2 105. For example, the eNB 105 includes a controller / processor 240 that operates to execute logic or computer instructions stored in a memory 242 and controls components of the eNB 105 that provide features and functions of the eNB 105. Under the control of the controller / processor 240, the eNB 105 transmits and receives signals via radios 701a-t and antennas 234a-t. The radios 701a-t include components of the eNB 105 such as Figure 2Various components and hardware are shown, including modulator / demodulators 232a-t, MIMO detector 236, receive processor 238, transmit processor 220, and TX MIMO processor 230. The eNB 105 may include memory 242. The memory 242 of the eNB 105 may include modulation order cap application logic 702, which may include logic for determining to indicate to a UE that a modulation order cap is to be applied to a modulation and coding scheme for transmission of uplink control information. The wireless radio 701a-t may perform the following steps, including sending a capping enabling parameter indicating that a modulation order cap is to be applied to a modulation and coding scheme by a UE, and receiving uplink control information to which a modulation and coding scheme having an order limited by the modulation order cap has been applied.

[0095] Those skilled in the art will appreciate that information and signals may be represented using any of a variety of different technologies and techniques. For example, data, instructions, commands, information, signals, bits, symbols, and chips that may be referred to throughout the above description may be represented by voltage, current, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.

[0096] The functional blocks and modules described herein (eg, Figure 2 , Figure 6 and Figure 7 The functional blocks and modules in the present invention may include processors, electronic devices, hardware devices, electronic components, logical circuits, memories, software codes, firmware codes, etc., or any combination thereof. Figure 4-Figure 5 and Figure 9-10 The method-related features may be implemented via dedicated processor circuits, via executable instructions, and / or a combination thereof.

[0097] Those skilled in the art will further appreciate that the various illustrative logical blocks, modules, circuits, and algorithm steps (e.g., those described in conjunction with the disclosure herein) may be used to describe the various illustrative logical blocks, modules, circuits, and algorithm steps. Figure 4-Figure 5 The logical blocks in the can be implemented as electronic hardware, computer software, or a combination of both. ) In order to clearly illustrate this interchangeability of hardware and software, various illustrative components, blocks, modules, circuits, and steps have been described above generally in terms of their functions. Whether such functions are implemented as hardware or software depends on the specific application and the design constraints imposed on the entire system. Those skilled in the art may implement the described functions in different ways for each specific application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present disclosure. Those skilled in the art will also readily recognize that the order or combination of components, methods, or interactions described herein are merely examples, and that the components, methods, or interactions of various aspects of the present disclosure may be combined or performed in ways different from those shown and described herein.

[0098] The various illustrative logical blocks, modules, and circuits described in conjunction with the disclosure herein may be implemented or performed with a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein. A general purpose processor may be a microprocessor, but in the alternative, the processor may be any conventional processor, controller, microcontroller, or state machine. The processor may also be implemented as a combination of computing devices, for example, a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration.

[0099] The steps of the method or algorithm described in conjunction with the disclosure of this article can be directly embodied in hardware, in a software module executed by a processor, or a combination of the two. The software module can reside in a RAM memory, a flash memory, a ROM memory, an EPROM memory, an EEPROM memory, a register, a hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor so that the processor can read information from the storage medium and write information to the storage medium. In an alternative, the storage medium can be integrated into the processor. The processor and the storage medium can reside in an ASIC. The ASIC can reside in a user terminal. In an alternative, the processor and the storage medium can reside in a user terminal as discrete components.

[0100] In one or more exemplary designs, the functions described can be implemented in hardware, software, firmware, or any combination thereof. If implemented in software, the functions can be stored on a computer-readable medium or transmitted by a computer-readable medium as one or more instructions or codes. Computer-readable media include both computer storage media and communication media, and communication media include any medium that facilitates the transmission of a computer program from one place to another. Computer-readable storage media can be any available medium that can be accessed by a general or special-purpose computer. By way of example and not limitation, such computer-readable media can include RAM, ROM, EEPROM, CD-ROM or other optical disk storage, disk storage or other magnetic storage devices, or any other medium that can be used to carry or store the desired program code components in the form of instructions or data structures and can be accessed by a general or special-purpose computer or a general or special-purpose processor. In addition, the connection can be appropriately referred to as a computer-readable medium. For example, if a coaxial cable, fiber optic cable, twisted pair, or digital subscriber line (DSL) is used to transmit software from a website, server, or other remote source, then the coaxial cable, fiber optic cable, twisted pair, or DSL are all included in the definition of the medium. Disk and disc as used herein include compact disc (CD), laser disc, optical disc, digital versatile disc (DVD), hard disk, solid state disk and Blu-ray disc, where disks usually reproduce data magnetically, while discs reproduce data optically with lasers. Combinations of the above should also be included within the scope of computer-readable media.

[0101] As used herein, including in the claims, the term "and / or," when used with a list of two or more items, means that any one of the listed items may be taken alone, or any combination of the two or more items may be taken. For example, if a composition is described as comprising components A, B, and / or C, the composition may comprise only A; only B; only C; A and B combined; A and C combined; B and C combined; or A, B, and C combined. Furthermore, as used herein, including in the claims, "or" used in a list of items ending with "at least one of..." means a disjunctive list, so that, for example, a list of "at least one of A, B, or C" means any one of these of A or B or C or AB or AC or BC or ABC (i.e., A and B and C), or any combination thereof.

[0102] The foregoing description of the present disclosure is provided to enable any person skilled in the art to make or use the present disclosure. Various modifications to the present disclosure will be apparent to those skilled in the art, and the general principles defined herein may be applied to other variations without departing from the spirit or scope of the present disclosure. Therefore, the present disclosure is not intended to be limited to the examples and designs described herein, but should be given the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for wireless communication performed by a user equipment UE, comprising: During a first transmission, and based on the first uplink control information of the first transmission being assigned a first priority, sending the first uplink control information and first data using a same first modulation and coding scheme and a same first modulation order; receiving, prior to a second transmission, a downlink transmission indicating that second uplink control information to be sent in the second transmission is assigned a second priority level higher than the first priority level; as well as The second transmission is performed based on the indication of the assignment of the second priority by the following steps: By following the condition that (a) the second modulation order does not exceed a predetermined maximum modulation order, and (b) the second modulation order is different from the first modulation order, and the second modulation order is selected for the second uplink control information to apply the predetermined maximum modulation order to the second uplink control information; as well as In the second transmission: The second uplink control information is transmitted with the selected second modulation order and using a second modulation and coding scheme; and second data is transmitted with the first modulation order and using the first modulation and coding scheme.

2. The method according to claim 1, wherein: The second modulation and coding scheme is further determined based on a received indication of an offset value from a code rate of the first modulation and coding scheme.

3. The method according to claim 1, wherein: A code rate of the second modulation and coding scheme is determined based on a received indication of an offset value from a code rate of the first modulation and coding scheme.

4. The method according to claim 1, further comprising: Receiving, by the UE, an indication of an offset value from a code rate of the first modulation and coding scheme used for transmission of data, wherein receiving, by the UE, the indication of the offset value comprises at least one of the following: receiving an indication of an offset value of a code rate of a hybrid automatic repeat request acknowledgment HARQ-ACK for determining the second uplink control information from the code rate of the first modulation and coding scheme; receiving an indication of an offset value from the code rate of the first modulation and coding scheme for determining a code rate of a first channel state information portion of the second uplink control information; and An indication of an offset value from the code rate of the first modulation and coding scheme for determining a code rate of a second channel state information portion of the second uplink control information is received.

5. The method according to claim 1, wherein: The second modulation and coding scheme is a modulation and coding scheme used for transmission of at least one of the following: a hybrid automatic repeat request confirmation HARQ-ACK of the second uplink control information, a first channel state information part of the second uplink control information, and a second channel state information part of the second uplink control information.

6. The method according to claim 1, wherein: The indication of the allocation of the second priority is a downlink control information DCI format.

7. A user equipment UE for wireless communication, comprising: at least one memory; as well as at least one processor coupled to the at least one memory, The at least one processor is configured to: During a first transmission, and based on the first uplink control information of the first transmission being assigned a first priority, sending the first uplink control information and first data using a same first modulation and coding scheme and a same first modulation order; receiving, prior to a second transmission, a downlink transmission indicating that second uplink control information to be sent in the second transmission is assigned a second priority level higher than the first priority level; as well as The second transmission is performed based on the indication of the assignment of the second priority by the following steps: By following the condition that (a) the second modulation order does not exceed a predetermined maximum modulation order, and (b) the second modulation order is different from the first modulation order, and the second modulation order is selected for the second uplink control information to apply the predetermined maximum modulation order to the second uplink control information; as well as In the second transmission: transmitting the second uplink control information with the selected second modulation order and using a second modulation and coding scheme; and Second data is sent with the first modulation order and using the first modulation and coding scheme.

8. The UE according to claim 7, wherein: The second modulation and coding scheme is further determined based on a received indication of an offset value from a code rate of the first modulation and coding scheme.

9. The UE according to claim 7, wherein: A code rate of the second modulation and coding scheme is determined based on a received indication of an offset value from a code rate of the first modulation and coding scheme.

10. The UE according to claim 7, wherein: The processor is further configured to receive an indication of an offset value from a code rate of the first modulation and coding scheme used for transmission of data, wherein the configuration of receiving the indication of the offset value comprises a configuration of at least one of the following: receiving an indication of an offset value of a code rate of a hybrid automatic repeat request acknowledgment HARQ-ACK for determining the second uplink control information from the code rate of the first modulation and coding scheme; receiving an indication of an offset value from the code rate of the first modulation and coding scheme for determining a code rate of a first channel state information portion of the second uplink control information; and An indication of an offset value from the code rate of the first modulation and coding scheme for determining a code rate of a second channel state information portion of the second uplink control information is received.

11. The UE according to claim 7, wherein: The second modulation and coding scheme is a modulation and coding scheme used for transmission of at least one of the following: a hybrid automatic repeat request confirmation HARQ-ACK of the second uplink control information, a first channel state information part of the second uplink control information, and a second channel state information part of the second uplink control information.

12. The UE according to claim 7, wherein: The indication of the allocation of the second priority is a downlink control information DCI format.

13. A non-transitory computer readable medium having program code recorded thereon, the program code comprising: Program code executable by a computer for causing the computer to perform the following steps: During a first transmission, and based on the first uplink control information of the first transmission being assigned a first priority, sending the first uplink control information and first data using a same first modulation and coding scheme and a same first modulation order; receiving, prior to a second transmission, a downlink transmission indicating that second uplink control information to be sent in the second transmission is assigned a second priority level higher than the first priority level; as well as The second transmission is performed based on the indication of the assignment of the second priority by the following steps: By following the condition that (a) the second modulation order does not exceed a predetermined maximum modulation order, and (b) the second modulation order is different from the first modulation order, and the second modulation order is selected for the second uplink control information to apply the predetermined maximum modulation order to the second uplink control information; as well as In the second transmission: transmitting the second uplink control information with the selected second modulation order and using a second modulation and coding scheme; and Second data is sent with the first modulation order and using the first modulation and coding scheme.

14. The computer-readable medium of claim 13, wherein: A code rate of the second modulation and coding scheme is determined based on a received indication of an offset value from a code rate of the first modulation and coding scheme.

15. The computer-readable medium of claim 13, wherein: The program code also includes program code executable by a computer to cause the computer to receive an indication of an offset value from a code rate of the first modulation and coding scheme used for transmission of data, wherein the executable program code for causing the computer to receive the indication of the offset value includes program code for causing the computer to perform at least one of the following: receiving an indication of an offset value of a code rate of a hybrid automatic repeat request acknowledgment HARQ-ACK for determining the second uplink control information from the code rate of the first modulation and coding scheme; receiving an indication of an offset value from the code rate of the first modulation and coding scheme for determining a code rate of a first channel state information portion of the second uplink control information; and An indication of an offset value from the code rate of the first modulation and coding scheme for determining a code rate of a second channel state information portion of the second uplink control information is received.

16. The computer-readable medium of claim 13, wherein: The second modulation and coding scheme is a modulation and coding scheme used for transmission of at least one of the following: a hybrid automatic repeat request confirmation HARQ-ACK of the second uplink control information, a first channel state information part of the second uplink control information, and a second channel state information part of the second uplink control information.

17. The computer-readable medium of claim 13, wherein: The indication of the allocation of the second priority is a downlink control information DCI format.

18. An apparatus for wireless communication, comprising: first means for transmitting the first uplink control information and first data using the same first modulation and coding scheme and the same first modulation order during a first transmission and based on the first uplink control information of the first transmission being assigned a first priority; second means for receiving, prior to a second transmission, a downlink transmission indicating that second uplink control information to be sent in the second transmission is assigned a second priority level higher than the first priority level; as well as and third means for performing the second transmission based on the indication of the assignment of the second priority by: By following the condition that (a) the second modulation order does not exceed a predetermined maximum modulation order, and (b) the second modulation order is different from the first modulation order, and the second modulation order is selected for the second uplink control information to apply the predetermined maximum modulation order to the second uplink control information; as well as In the second transmission: transmitting the second uplink control information with the selected second modulation order and using a second modulation and coding scheme; and Second data is sent with the first modulation order and using the first modulation and coding scheme.

19. The device according to claim 18, wherein: A code rate of the second modulation and coding scheme is determined based on a received indication of an offset value from a code rate of the first modulation and coding scheme.

20. The apparatus of claim 18, further comprising: The method further comprises: receiving, by a user equipment (UE), an indication of an offset value from a code rate of the first modulation and coding scheme used for transmission of data, wherein the method for receiving, by the UE, the indication of the offset value comprises at least one of the following: means for receiving an indication of an offset value from the code rate of the first modulation and coding scheme for determining a code rate of a hybrid automatic repeat request acknowledgement HARQ-ACK for the second uplink control information; means for receiving an indication of an offset value from the code rate of the first modulation and coding scheme for determining a code rate of a first channel state information portion of the second uplink control information; and Means for receiving an indication of an offset value from the code rate of the first modulation and coding scheme for determining a code rate of a second channel state information portion of the second uplink control information.

21. The device according to claim 18, wherein The second modulation and coding scheme is a modulation and coding scheme used for transmission of at least one of the following: a hybrid automatic repeat request confirmation HARQ-ACK of the second uplink control information, a first channel state information part of the second uplink control information, and a second channel state information part of the second uplink control information.

22. The device according to claim 18, wherein The indication of the allocation of the second priority is a downlink control information DCI format.

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