Signaling for 1024 quadrature amplitude modulation table indication and configuration

Abstract

In summary, various aspects of this disclosure relate to wireless communications. In some aspects, a user equipment (UE) can receive downlink control information transmissions including resource allocation for downlink services and at least one dedicated table bit indicating whether the UE should decode the downlink service using a first modulation order and a first target code rate corresponding to a first modulation and coding scheme (MCS) table, or a second modulation order and a second target code rate corresponding to a second MCS table (1024 quadrature amplitude modulation table). The UE can decode the downlink service, at least in part, based on at least one value of the at least one dedicated table bit, according to either the first modulation order and the first target code rate or the second modulation order and the second target code rate. Numerous other aspects are described.

Description

[0001] Cross-references to related applications

[0002] This patent application claims priority to U.S. nonprovisional patent application No. 17 / 164,606, filed February 1, 2021, entitled “SIGNALING FOR 1024 QUADRATURE AMPLITUDE MODULATION TABLE INDICATION AND CONFIGURATION”, which is expressly incorporated herein by reference. Technical Field

[0003] In summary, various aspects of this disclosure relate to wireless communication, and various aspects of this disclosure relate to techniques and apparatus for signaling for indicating and configuring a 1024 quadrature amplitude modulation table. Background Technology

[0004] Wireless communication systems are widely deployed to provide a variety of telecommunications services such as telephone, video, data, messaging, and broadcasting. Typical wireless communication systems employ multiple access technologies that can support communication with multiple users by sharing available system resources (e.g., bandwidth, transmit power, etc.). Examples of such multiple access technologies include Code Division Multiple Access (CDMA) systems, Time Division Multiple Access (TDMA) systems, Frequency Division Multiple Access (FDMA) systems, Orthogonal Frequency Division Multiple Access (OFDMA) systems, Single Carrier Frequency Division Multiple Access (SC-FDMA) systems, Time Division Synchronous Code Division Multiple Access (TD-SCDMA) systems, and Long Term Evolution (LTE). LTE / Improved LTE is an enhanced set of the Universal Mobile Telecommunications System (UMTS) mobile standard released by the 3rd Generation Partnership Project (3GPP).

[0005] A wireless network may include multiple base stations (BSs) capable of supporting communication for multiple user equipments (UEs). UEs can communicate with the BS via downlinks and uplinks. A downlink (or forward link) refers to the communication link from the BS to the UE, and an uplink (or reverse link) refers to the communication link from the UE to the BS. As will be described in more detail herein, a BS may be referred to as a Node B, gNB, Access Point (AP), Radio Headend, Transmit / Receive Point (TRP), New Radio (NR) BS, 5G Node B, etc.

[0006] The above multiple access technologies have been adopted in various telecommunications standards to provide a common protocol that enables different user equipment to communicate at the city, country, region, and even global levels. NR (which can also be referred to as 5G) is an enhancement set of the LTE mobile standard released by 3GPP. NR is designed to better integrate with other open standards by improving spectrum efficiency, reducing costs, improving service, utilizing new spectrum, and using Orthogonal Frequency Division Multiplexing (OFDM) with Cyclic Prefix (CP) (CP-OFDM) on the downlink (DL) and CP-OFDM and / or SC-FDM (e.g., also known as Discrete Fourier Transform Spread Spectrum OFDM (DFT-s-OFDM)) on the uplink (UL), thereby better supporting mobile broadband internet access, as well as beamforming, multiple-input multiple-output (MIMO) antenna technologies, and carrier aggregation. As the demand for mobile broadband access continues to grow, further improvements to LTE, NR, and other radio access technologies remain useful. Summary of the Invention

[0007] In some aspects, a method of wireless communication performed by a user equipment (UE) includes: receiving downlink control information (DCI) transmission, the DCI transmission including physical downlink shared channel resource allocation for downlink services, wherein the DCI transmission includes at least one dedicated table bit, the at least one dedicated table bit indicating whether the UE should decode the downlink services using a first modulation order and a first target code rate corresponding to a first modulation and coding scheme (MCS) table or using a second modulation order and a second target code rate corresponding to a second MCS table, wherein the second MCS table corresponds to 1024 quadrature amplitude modulation (QAM); and decoding the downlink services according to either the first modulation order and the first target code rate or the second modulation order and the second target code rate, based at least in part on at least one value of the at least one dedicated table bit.

[0008] In some aspects, a method of wireless communication performed by a base station includes: transmitting a DCI transmission, the DCI transmission including a physical downlink shared channel resource allocation for downlink services, wherein the DCI transmission includes at least one dedicated table bit, the at least one dedicated table bit indicating whether the UE is to decode the downlink services using a first modulation order and a first target code rate corresponding to a first MCS table or using a second modulation order and a second target code rate corresponding to a second MCS table, wherein the second MCS table corresponds to 1024-QAM; and transmitting the downlink services based at least in part on at least one value of the at least one dedicated table bit, according to the first modulation order and the first target code rate or the second modulation order and the second target code rate.

[0009] In some aspects, a UE for wireless communication includes: a memory; and one or more processors coupled to the memory, the memory and the one or more processors being configured to: receive a DCI transmission, the DCI transmission including a physical downlink shared channel resource allocation for downlink services, wherein the DCI transmission includes at least one dedicated table bit, the at least one dedicated table bit indicating whether the UE should decode the downlink services using a first modulation order and a first target code rate corresponding to a first MCS table or using a second modulation order and a second target code rate corresponding to a second MCS table, wherein the second MCS table corresponds to 1024-QAM; and decode the downlink services based at least in part on at least one value of the at least one dedicated table bit, according to the first modulation order and the first target code rate or the second modulation order and the second target code rate.

[0010] In some aspects, a base station for wireless communication includes: a memory; and one or more processors coupled to the memory, the memory and the one or more processors being configured to: transmit DCI transmissions, the DCI transmissions including physical downlink shared channel resource allocation for downlink services, wherein the DCI transmissions include at least one dedicated table bit, the at least one dedicated table bit indicating whether the UE is to decode the downlink service using a first modulation order and a first target code rate corresponding to a first MCS table or using a second modulation order and a second target code rate corresponding to a second MCS table, wherein the second MCS table corresponds to 1024-QAM; and transmit the downlink service based at least in part on at least one value of the at least one dedicated table bit, according to the first modulation order and the first target code rate or the second modulation order and the second target code rate.

[0011] In some aspects, a non-transitory computer-readable medium storing a set of instructions for wireless communication includes one or more instructions that, when executed by one or more processors of a UE, cause the UE to: receive a DCI transmission, the DCI transmission including a physical downlink shared channel resource allocation for downlink services, wherein the DCI transmission includes at least one dedicated table bit indicating whether the UE should decode the downlink services using a first modulation order and a first target code rate corresponding to a first MCS table or using a second modulation order and a second target code rate corresponding to a second MCS table, wherein the second MCS table corresponds to 1024-QAM; and decode the downlink services according to either the first modulation order and the first target code rate or the second modulation order and the second target code rate, based at least in part on at least one value of the at least one dedicated table bit.

[0012] In some aspects, a non-transitory computer-readable medium storing a set of instructions for wireless communication includes one or more instructions that, when executed by one or more processors of a base station, cause the base station to: transmit a DCI transmission, the DCI transmission including a physical downlink shared channel resource allocation for downlink services, wherein the DCI transmission includes at least one dedicated table bit indicating whether the UE should use a first modulation order and a first target code rate corresponding to a first MCS table or a second modulation order and a second target code rate corresponding to a second MCS table, wherein the second MCS table corresponds to 1024-QAM; and transmit the downlink services based at least in part on at least one value of the at least one dedicated table bit, according to the first modulation order and the first target code rate or the second modulation order and the second target code rate.

[0013] In some aspects, an apparatus for wireless communication includes: a unit for receiving a DCI transmission, the DCI transmission including a physical downlink shared channel resource allocation for downlink services, wherein the DCI transmission includes at least one dedicated table bit, the at least one dedicated table bit indicating whether to use a first modulation order and a first target code rate corresponding to a first MCS table or to use a second modulation order and a second target code rate corresponding to a second MCS table, wherein the second MCS table corresponds to 1024-QAM; and a unit for decoding the downlink services based at least in part on at least one value of the at least one dedicated table bit, according to the first modulation order and the first target code rate or the second modulation order and the second target code rate.

[0014] In some aspects, an apparatus for wireless communication includes: a unit for transmitting DCI transmission, the DCI transmission including physical downlink shared channel resource allocation for downlink services, wherein the DCI transmission includes at least one dedicated table bit, the at least one dedicated table bit indicating whether the UE is to decode the downlink services using a first modulation order and a first target code rate corresponding to a first MCS table or using a second modulation order and a second target code rate corresponding to a second MCS table, wherein the second MCS table corresponds to 1024-QAM; and a unit for transmitting the downlink services based at least in part on at least one value of the at least one dedicated table bit, according to the first modulation order and the first target code rate or the second modulation order and the second target code rate.

[0015] In general, the aspects include methods, apparatus, systems, computer program products, non-transitory computer-readable media, user equipment, base stations, wireless communication equipment and / or processing systems as fully described herein with reference to the accompanying drawings and description and as shown by the accompanying drawings and description.

[0016] The foregoing has provided a fairly broad overview of the features and technical advantages of examples according to this disclosure in order to better understand the following detailed description. Additional features and advantages will be described below. The disclosed concepts and specific examples can be readily used as the basis for modifying or designing other structures for achieving the same purpose as this disclosure. Such equivalent constructions do not depart from the scope of the appended claims. The characteristics of the concepts disclosed herein (both their organization and manner of operation) and their associated advantages will be better understood when considered in conjunction with the accompanying drawings, based on the following description. Each drawing in the accompanying drawings is provided for illustrative and descriptive purposes and is not intended to define a limitation of the claims. Attached Figure Description

[0017] To gain a full understanding of the foregoing features of this disclosure, a more specific description of the invention, briefly summarized above, can be obtained by referring to various aspects, some of which are illustrated in the accompanying drawings. However, it should be noted that the drawings illustrate only certain typical aspects of this disclosure and are therefore not intended to limit the scope of the disclosure, as other equally valid aspects are permissible under this description. The same reference numerals in different drawings may identify the same or similar elements.

[0018] Figure 1 This is a diagram illustrating an example of a wireless network according to this disclosure.

[0019] Figure 2 This is a diagram illustrating an example of communication between a base station and a UE in a wireless network according to the present disclosure.

[0020] Figure 3 This is a diagram illustrating an example of signaling for 1024 quadrature amplitude modulation (QAM) table indication and configuration according to this disclosure.

[0021] Figure 4 and Figure 5 This is a diagram illustrating an example process associated with signaling for 1024-QAM table indication and configuration, according to this disclosure.

[0022] Figure 6 and Figure 7 This is a block diagram of an example device for wireless communication based on the present disclosure. Detailed Implementation

[0023] The various aspects of this disclosure are described more fully below with reference to the accompanying drawings. However, this disclosure may be embodied in many different forms and should not be construed as limited to any particular structure or function presented throughout this disclosure. Rather, these aspects are provided so that this disclosure will be thorough and complete, and will fully convey the scope of this disclosure to those skilled in the art. Based on the teachings herein, those skilled in the art will understand that the scope of this disclosure is intended to cover any aspect of this disclosure disclosed herein, whether implemented independently of or in combination with any other aspect of this disclosure. For example, an apparatus or a method may be implemented using any number of the aspects set forth herein. Furthermore, the scope of this disclosure is intended to cover such apparatuses or methods implemented using structures, functions, or structures and functions other than or different from the aspects of this disclosure set forth herein. It should be understood that any aspect of this disclosure disclosed herein may be embodied by one or more elements of the claims.

[0024] Several aspects of a telecommunications system will now be described with reference to various devices and techniques. These devices and techniques will be described in detail below and illustrated in the accompanying drawings, through various frames, modules, components, circuits, steps, processes, algorithms, etc. (collectively referred to as “elements”). These elements can be implemented using hardware, software, or a combination thereof. Whether such an element is implemented as hardware or software depends on the specific application and the design constraints imposed on the entire system.

[0025] It should be noted that while this document may use terms commonly associated with 5G or NR radio access technology (RAT) to describe aspects, aspects of this disclosure may be applied to other RATs, such as 3G RAT, 4G RAT and / or RATs after 5G (e.g., 6G).

[0026] Figure 1This is a diagram illustrating an example of a wireless network 100 according to this disclosure. Wireless network 100 may be or may include elements of a 5G (NR) network and / or an LTE network, as well as other examples. Wireless network 100 may include multiple base stations 110 (shown as BS110a, BS110b, BS110c, and BS110d) and other network entities. A base station (BS) is an entity that communicates with a user equipment (UE) and may also be referred to as an NR BS, Node B, gNB, 5G Node B (NB), access point, Transmit / Receive Point (TRP), etc. Each BS can provide communication coverage for a specific geographic area. In 3GPP, the term "cell" may refer to the coverage area of ​​a BS and / or the BS subsystem serving that coverage area, depending on the context in which the term is used.

[0027] A BS can provide communication coverage for macrocells, picocells, femtocells, and / or another type of cell. A macrocell can cover a relatively large geographic area (e.g., a radius of several kilometers) and can allow unrestricted access by UEs with service subscriptions. A picocell can cover a relatively small geographic area and can allow unrestricted access by UEs with service subscriptions. A femtocell can cover a relatively small geographic area (e.g., a residential area) and can allow restricted access by UEs associated with that femtocell (e.g., UEs in a Closed User Group (CSG)). A BS used for macrocells can be referred to as a macro BS. A BS used for picocells can be referred to as a pico BS. A BS used for femtocells can be referred to as a femtocell BS or a home BS. Figure 1 In the examples shown, BS110a can be a macro BS for macro cell 102a, BS110b can be a pico BS for pico cell 102b, and BS110c can be a femto BS for femto cell 102c. A BS can support one or more (e.g., three) cells. The terms “eNB,” “base station,” “NR BS,” “gNB,” “TRP,” “AP,” “Node B,” “5G NB,” and “cell” are used interchangeably herein.

[0028] In some respects, the cell may not be stationary, and the geographical area of ​​the cell may move depending on the location of the mobile BS. In some respects, BSs may be interconnected with each other and / or with one or more other BSs or network nodes (not shown) in the wireless network 100 using any suitable transport network via various types of backhaul interfaces (such as direct physical connections or virtual networks).

[0029] The wireless network 100 may also include a relay station. A relay station is an entity that can receive data transmissions from an upstream station (e.g., a BS or a UE) and send the data transmissions to a downstream station (e.g., a UE or a BS). A relay station can also be a UE capable of relaying transmissions for other UEs. Figure 1 In the example shown, relay BS110d can communicate with macro BS110a and UE 120d to facilitate communication between BS110a and UE 120d. A relay BS can also be referred to as a relay station, relay base station, repeater, etc.

[0030] Wireless network 100 can be a heterogeneous network comprising different types of Base Stations (BSs) such as macro BSs, pico BSs, femto BSs, relay BSs, etc. These different types of BSs can have different transmit power levels, different coverage areas, and different effects on interference in wireless network 100. For example, macro BSs can have high transmit power levels (e.g., 5 to 40 watts), while pico BSs, femto BSs, and relay BSs can have lower transmit power levels (e.g., 0.1 to 2 watts).

[0031] Network controller 130 can be coupled to a group of base stations (BSs) and can provide coordination and control for these BSs. Network controller 130 can communicate with the BSs via backhaul. BSs can also communicate with each other via wireless or wired backhaul (e.g., directly or indirectly).

[0032] UE 120 (e.g., 120a, 120b, 120c) may be distributed throughout the wireless network 100, and each UE may be stationary or mobile. UE may also be referred to as an access terminal, terminal, mobile station, user unit, station, etc. UE may be a cellular phone (e.g., a smartphone), personal digital assistant (PDA), wireless modem, wireless communication device, handheld device, laptop computer, cordless phone, wireless local loop (WLL) station, tablet device, camera, gaming device, netbook, smartbook, ultrabook, medical device or apparatus, biometric sensor / device, wearable device (smartwatch, smart clothing, smart glasses, smart wristband, smart jewelry (e.g., smart ring, smart bracelet)), entertainment device (e.g., music or video device, or satellite radio unit), vehicle component or sensor, smart meter / sensor, industrial manufacturing equipment, GPS device, or any other suitable device configured to communicate via wireless or wired media.

[0033] Some UEs can be considered Machine-Type Communication (MTC) or Evolved or Enhanced Machine-Type Communication (eMTC) UEs. MTC and eMTC UEs include, for example, robots, drones, remote devices, sensors, meters, monitors, and / or location tags, which can communicate with a base station, another device (e.g., a remote device), or some other entity. Wireless nodes can provide connectivity to or to a network (e.g., a wide area network such as the Internet or cellular networks) via wired or wireless communication links, for example. Some UEs can be considered Internet of Things (IoT) devices, and / or can be implemented as NB-IoT (Narrowband Internet of Things) devices. Some UEs can be considered Customer Premises Equipment (CPE). UE 120 can be included within a housing housing the components of UE 120, such as processor components and / or memory components. In some aspects, the processor components and memory components can be coupled together. For example, the processor components (e.g., one or more processors) and memory components (e.g., memory) can be operatively coupled, communicatively coupled, electronically coupled, and / or electrically coupled.

[0034] Typically, any number of wireless networks can be deployed in a given geographical area. Each wireless network can support a specific RAT and can operate on one or more frequencies. A RAT can also be referred to as a radio technology, air interface, etc. A frequency can also be referred to as a carrier, channel, etc. Each frequency can support a single RAT in a given geographical area to avoid interference between wireless networks using different RATs. In some cases, NR or 5G RAT networks can be deployed.

[0035] In some respects, two or more UEs 120 (e.g., shown as UE 120a and UE 120e) may communicate directly using one or more sidelink channels (e.g., without using base station 110 as an intermediary for communication with each other). For example, UE 120 may communicate using peer-to-peer (P2P) communication, device-to-device (D2D) communication, vehicle-to-everything (V2X) protocols (e.g., which may include vehicle-to-vehicle (V2V) protocols, vehicle-to-infrastructure (V2I) protocols), and / or mesh networks. In this case, UE 120 may perform scheduling operations, resource selection operations, and / or other operations described elsewhere herein as being performed by base station 110.

[0036] Devices in the wireless network 100 can communicate using the electromagnetic spectrum, which can be subdivided into various categories, bands, channels, etc., based on frequency or wavelength. For example, devices in the wireless network 100 can communicate using an operating band with a first frequency range (FR1) (spanning from 410 MHz to 7.125 GHz), and / or can communicate using an operating band with a second frequency range (FR2) (spanning from 24.25 GHz to 52.6 GHz). Frequencies between FR1 and FR2 are sometimes referred to as intermediate frequency (IF) bands. Although a portion of FR1 is greater than 6 GHz, FR1 is generally referred to as the "below 6 GHz" band. Similarly, FR2 is generally referred to as the "millimeter wave" band, although it is different from the extremely high frequency (EHF) band (30 GHz–300 GHz) designated as "millimeter wave" by the International Telecommunication Union (ITU). Therefore, unless otherwise explicitly stated, it should be understood that the terms "below 6 GHz" and the like (if used herein) can broadly refer to frequencies less than 6 GHz, frequencies within FR1, and / or intermediate frequency band frequencies (e.g., greater than 7.125 GHz). Similarly, unless otherwise explicitly stated, it should be understood that the terms "millimeter wave" and the like (if used herein) can broadly refer to frequencies within the EHF band, frequencies within FR2, and / or intermediate frequency band frequencies (e.g., less than 24.25 GHz). It is anticipated that the frequencies included in FR1 and FR2 may be modified, and the techniques described herein are applicable to those modified frequency ranges.

[0037] As pointed out above, Figure 1 This is provided as an example. Other examples may differ from the one provided. Figure 1 The example described.

[0038] Figure 2 This is a diagram illustrating an example 200 of communication between a base station 110 and a UE 120 in a wireless network 100 according to the present disclosure. The base station 110 may be equipped with T antennas 234a to 234t, and the UE 120 may be equipped with R antennas 252a to 252r, wherein generally, T ≥ 1 and R ≥ 1.

[0039] At base station 110, transmitting processor 220 can receive data for one or more UEs from data source 212, select one or more modulation and coding schemes (MCS) for each UE based at least in part on channel quality indicators (CQI) received from each UE, process (e.g., code and modulate) the data for each UE based at least in part on the MCS selected for each UE, and provide data symbols for all UEs. Transmitting processor 220 can also process system information (e.g., semi-static resource allocation information (SRPI)) and control information (e.g., CQI requests, permission, and / or upper-layer signaling), and provide overhead symbols and control symbols. Transmitting processor 220 can also generate reference symbols for reference signals (e.g., cell-specific reference signals (CRS) or demodulation reference signals (DMRS)) and synchronization signals (e.g., primary synchronization signal (PSS) or secondary synchronization signal (SSS)). The transmit (TX) multiple-input multiple-output (MIMO) processor 230 can perform spatial processing (e.g., precoding, if applicable) on data symbols, control symbols, overhead symbols, and / or reference symbols, and can provide T output symbol streams to T modulators (MODs) 232a to 232t. Each modulator 232 can (e.g., for OFDM) process its corresponding output symbol stream to obtain an output sample stream. Each modulator 232 can further process (e.g., convert to analog, amplify, filter, and up-convert) the output sample stream to obtain a downlink signal. The T downlink signals from modulators 232a to 232t can be transmitted via T antennas 234a to 234t respectively.

[0040] At UE 120, antennas 252a to 252r can receive downlink signals from base station 110 and / or other base stations, and can provide the received signals to demodulators (DEMODs) 254a to 254r respectively. Each demodulator 254 can adjust (e.g., filter, amplify, down-convert, and digitize) the received signal to obtain an input sample. Each demodulator 254 can further process the input sample (e.g., for OFDM) to obtain a received symbol. MIMO detector 256 can obtain the received symbols from all R demodulators 254a to 254r, perform MIMO detection on the received symbols (if applicable), and provide the detected symbols. Receive processor 258 can process (e.g., demodulate and decode) the detected symbols, provide decoded data for UE 120 to data sink 260, and provide decoded control information and system information to controller / processor 280. The term "controller / processor" can refer to one or more controllers, one or more processors, or a combination thereof. The channel processor can determine the Reference Signal Received Power (RSRP) parameter, the Received Signal Strength Indicator (RSSI) parameter, the Reference Signal Received Quality (RSRQ) parameter, and / or the Channel Quality Indicator (CQI) parameter, as well as other examples. In some aspects, one or more components of the UE 120 may be included in the housing 284.

[0041] Network controller 130 may include communication unit 294, controller / processor 290, and memory 292. Network controller 130 may include one or more devices, such as those in a core network. Network controller 130 may communicate with base station 110 via communication unit 294.

[0042] Antennas (e.g., antennas 234a to 234t and / or antennas 252a to 252r) may include or be included within the following: one or more antenna panels, antenna groups, antenna element sets, and / or antenna arrays, and other examples. Antenna panels, antenna groups, antenna element sets, and / or antenna arrays may include one or more antenna elements. Antenna panels, antenna groups, antenna element sets, and / or antenna arrays may include coplanar antenna element sets and / or non-coplanar antenna element sets. Antenna panels, antenna groups, antenna element sets, and / or antenna arrays may include antenna elements within a single housing and / or multiple antenna elements within housings. Antenna panels, antenna groups, antenna element sets, and / or antenna arrays may include antenna elements coupled to one or more transmitting and / or receiving components (such as...) Figure 2 One or more antenna elements (one or more components).

[0043] On the uplink, at UE 120, the transmitting processor 264 can receive and process data from data source 262 and control information from controller / processor 280 (e.g., for reporting RSRP, RSSI, RSRQ, and / or CQI). The transmitting processor 264 can also generate reference symbols for one or more reference signals. Symbols from the transmitting processor 264 can be pre-coded (if applicable) by TX MIMO processor 266, further processed by modulators 254a to 254r (e.g., for DFT-s-OFDM or CP-OFDM), and transmitted to base station 110. In some aspects, the modulator and demodulator (e.g., MOD / DEMOD 254) of UE 120 can be included in the modem of UE 120. In some aspects, UE 120 includes a transceiver. The transceiver may include any combination of antenna 252, modulator and / or demodulator 254, MIMO detector 256, receive processor 258, transmit processor 264 and / or TX MIMO processor 266. The transceiver may be used by a processor (e.g., controller / processor 280) and memory 282 to perform aspects of any of the methods described herein (e.g., as referenced). Figure 3-5 (Described).

[0044] At base station 110, uplink signals from UE 120 and other UEs can be received by antenna 234, processed by demodulator 232, detected by MIMO detector 236 (if applicable), and further processed by receiver processor 238 to obtain decoded data and control information transmitted by UE 120. Receiver processor 238 can provide decoded data to data sink 239 and decoded control information to controller / processor 240. Base station 110 may include communication unit 244 and communicate with network controller 130 via communication unit 244. Base station 110 may include scheduler 246 to schedule UE 120 for downlink and / or uplink communication. In some aspects, modulators and demodulators (e.g., MOD / DEMOD 232) of base station 110 may be included in the modem of base station 110. In some aspects, base station 110 includes a transceiver. The transceiver may include any combination of antenna 234, modulator and / or demodulator 232, MIMO detector 236, receive processor 238, transmit processor 220, and / or TX MIMO processor 230. The transceiver may be used by a processor (e.g., controller / processor 240) and memory 242 to perform aspects of any of the methods described herein (e.g., as referenced). Figure 3-5 (Described).

[0045] The controller / processor 240 of base station 110, the controller / processor 280 of UE 120 and / or Figure 2 Any other components may execute one or more techniques associated with signaling for 1024 quadrature amplitude modulation (QAM) table indication and configuration, as described in more detail elsewhere herein. For example, the controller / processor 240 of base station 110, the controller / processor 280 of UE 120, and / or Figure 2 Any other component can perform or direct, for example Figure 4 Process 400 Figure 5 The operation of process 500 and / or other processes as described herein. Memory 242 and 282 may store data and program code for base station 110 and UE 120, respectively. In some aspects, memory 242 and / or memory 282 may include a non-transitory computer-readable medium storing one or more instructions (e.g., code and / or program code) for wireless communication. For example, one or more instructions, when executed by one or more processors of base station 110 and / or UE 120 (e.g., directly, or after compilation, translation, and / or interpretation), may cause one or more processors, UE 120, and / or base station 110 to perform or direct, for example... Figure 4 Process 400 Figure 5 The operation of process 500 and / or other processes as described herein. In some aspects, execution instructions may include run instructions, translation instructions, compilation instructions and / or interpretation instructions, and other examples.

[0046] In some aspects, UE 120 may include: a unit for receiving downlink control information (DCI) transmissions, the DCI transmissions including physical downlink shared channel resource allocation for downlink services, wherein the DCI transmissions include at least one dedicated table bit indicating whether the UE should decode the downlink services using a first modulation order and a first target code rate corresponding to a first MCS table or using a second modulation order and a second target code rate corresponding to a second MCS table, wherein the second MCS table corresponds to 1024-QAM; a unit for decoding the downlink services based at least in part on at least one value of at least one dedicated table bit, according to the first modulation order and the first target code rate or the second modulation order and the second target code rate; etc. In some aspects, such a unit may include a combination of Figure 2 One or more components of the described UE 120, such as controller / processor 280, transmit processor 264, TX MIMO processor 266, MOD 254, antenna 252, DEMOD 254, MIMO detector 256, receive processor 258, etc.

[0047] In some aspects, the units described above may include units for determining whether to use a first modulation order and a first target code rate or a second modulation order and a second target code rate, based at least in part on the value of a single bit. In some aspects, the units described above may include units for determining whether to use a first modulation order and a first target code rate or a second modulation order and a second target code rate, without considering the Radio Network Temporary Identifier (RNTI). In some aspects, the units described above may include units for determining whether to use a first modulation order and a first target code rate or a second modulation order and a second target code rate, based at least in part on the RNTI.

[0048] In some aspects, the units described above may include: units for selecting a second MCS table based at least in part on the determination that the values ​​of table parameters correspond to a second MCS table, the UE is not configured with an MCS cell RNTI (MCS-C-RNTI), and the DCI transmission includes a DCI 1_2 format having a cyclic redundancy check (CRC) scrambled by the cell RNTI (C-RNTI). In some aspects, the units described above may include: units for selecting a second MCS table based at least in part on the determination that the values ​​of table parameters correspond to a second MCS table, the UE is not configured with an MCS-C-RNTI, and the DCI transmission includes a DCI format other than DCI 1_2 having a CRC scrambled by C-RNTI in a UE-specific search space. In some aspects, the unit described above may include: a unit for selecting the second MCS table based at least in part on the value of the table parameter corresponding to the second MCS table, the UE being configured with MCS-C-RNTI 2 (MCS-C-RNTI 2), and the determination of the CRC scrambled by MCS-C-RNTI2 in the DCI transmission.

[0049] In some aspects, the units described above may include: units for selecting a second MCS table based at least in part on the determination that the values ​​of table parameters correspond to a second MCS table, the UE is not configured with semi-persistent scheduling (SPS) dedicated table parameters, and the DCI transmission includes DCI format 1_2 with a CRC scrambled by a configured scheduling (CS)-RNTI, or the SPS is activated by DCI format 1_2 without a corresponding physical downlink control channel transmission (PDCCH). In some aspects, the units described above may include: units for selecting a second MCS table based at least in part on the determination that the values ​​of table parameters correspond to a second MCS table, the UE is not configured with SPS dedicated table parameters, and the DCI transmission includes DCI format 1_1 with a CRC scrambled by a CS-RNTI, or the SPS is activated by DCI format 1_1 without a corresponding PDCCH.

[0050] In some aspects, the units described above may include: units for transmitting a Medium Access Control Control Element (MACCE) to overwrite a Radio Resource Control (RRC) configuration to enable one or more functions associated with at least one dedicated table bit. In some aspects, the units described above may include: units for receiving an SPS configuration including a default set of MCS parameters associated with an MCS table, the MCS table corresponding to a lower QAM than the MCS table corresponding to the current set of MCS parameters. In some aspects, the units described above may include: units for determining whether the number of negative acknowledgments transmitted within a measurement window meets a threshold; and / or selecting a default set of MCS parameters based at least in part on determining that the number of negative acknowledgments meets the threshold.

[0051] In some aspects, the units described above may include: units for receiving group configurations indicating the association between an SPS configuration group and an MCS parameter set, wherein at least one dedicated table bit indicates the SPS configuration group. In some aspects, the units described above may include: units for transmitting a Channel State Information (CSI) report indicating a proposed MCS table to be used when interpreting the CSI report. In some aspects, the units described above may include: units for receiving, at least in part, an indication of using one or more MCS tables when calculating the CQI, based on the proposed MCS tables.

[0052] In some aspects, base station 110 may include: a unit for transmitting DCI transmission, the DCI transmission including physical downlink shared channel resource allocation for downlink services, wherein the DCI transmission includes at least one dedicated table bit indicating whether the UE should use a first modulation order and a first target code rate corresponding to a first MCS table or a second modulation order and a second target code rate corresponding to a second MCS table, wherein the second MCS table corresponds to 1024-QAM; and / or a unit for transmitting downlink services based at least in part on at least one value of at least one dedicated table bit, according to the first modulation order and the first target code rate or the second modulation order and the second target code rate. In some aspects, such a unit may include a combination of Figure 2 One or more components of the described base station 110, such as antenna 234, DEMOD 232, MIMO detector 236, receive processor 238, controller / processor 240, transmit processor 220, TX MIMO processor 230, MOD 232, antenna 234, etc.

[0053] In some aspects, the units described above may include: a unit for transmitting an SPS configuration including a default set of MCS parameters associated with an MCS table, the MSC table corresponding to a lower QAM than the MCS table corresponding to the current set of MCS parameters. In some aspects, the units described above may include: a unit for transmitting a group configuration indicating the association between an SPS configuration group and an MCS parameter set, wherein at least one dedicated table bit indicates the SPS configuration group.

[0054] Although Figure 2 The boxes in the diagram are shown as different components, but the functions described above with respect to these boxes can be implemented in a single hardware, software, or combined component, or in various combinations of components. For example, the functions described with respect to transmit processor 264, receive processor 258, and / or TX MIMO processor 266 can be performed by controller / processor 280 or under the control of controller / processor 280.

[0055] As pointed out above, Figure 2 This is provided as an example. Other examples may differ from the one provided. Figure 2 The example described.

[0056] Base station 110 and UE 120 can communicate using specific modulation orders to encode services. For example, the modulation order can correspond to a modulation scheme (e.g., Quadrature Phase Shift Keying (QPSK) associated with modulation order 4, 16-QAM associated with modulation order 6, 64-QAM associated with modulation order 8, etc.). Higher modulation orders can provide higher throughput but may require a better signal-to-noise ratio (SNR) and / or better operating conditions compared to lower modulation orders. Therefore, the modulation order used for UE 120 can decrease as UE 120 moves away from BS110 and / or as the channel conditions of UE 120 deteriorate. In such cases, a lower modulation order can be considered more robust compared to a higher modulation order.

[0057] With increasing bandwidth and throughput demands, some wireless communication standards are moving towards using higher modulation orders. For example, as part of an upcoming 3GPP release, 1024-QAM on the downlink can be implemented for the UE. In such a case, base station 110 can enable or disable the 1024-QAM modulation order via RRC configuration signaling. The RRC message may include, for example, table parameters (e.g., parameter mcs-Table-r17) indicating the modulation and MCS tables to identify the modulation order and target code rate to be used when decoding received Physical Downlink Shared Channel (PDSCH) communications.

[0058] In some cases, the 1024-QAM MCS table may be indicated solely by RRC configuration signaling used for PDSCH (e.g., PDSCH-Config). Therefore, UE 120 may not be able to dynamically switch to using the 1024-QAM MCS table to decode transmissions encoded using different MCSs (e.g., based on the mobility of UE 120 and / or base station 110). Furthermore, in such cases, the indication of the 1024-QAM MCS table may not be available for semi-persistent scheduling (SPS) configuration. Therefore, restricting the indication and configuration of the 1024-QAM MCS table to RRC signaling can lead to network inefficiency, which may negatively impact network performance.

[0059] Furthermore, UE 120 can generate CSI feedback based at least partially on the CSI reference signal. UE 120 can determine which MCS table and / or table features to use based at least partially on the CSI. In some cases, CQI-based parameters (cqi-Table) can be used to report the MCS table used for reporting CSI. UE 120 may have difficulty supporting 1024-QAM and lower modulation orders with multiple repetitions (e.g., 16-QAM, etc.) with the same RRC signaling. This may be particularly undesirable when coverage changes frequently (thus requiring frequent switching between CSI reference resource size, repetition scheme, and modulation scheme, which may incur RRC signaling overhead).

[0060] Some of the techniques and apparatus described herein can provide improved efficiency and versatility for communication between a UE and a base station associated with a higher modulation order by enabling dynamic indication and / or configuration of the 1024-QAM MCS table. In some aspects, the UE 120 can receive DCI transmissions including PDSCH resource allocation for downlink services. The DCI transmissions may include at least one dedicated table bit that can indicate whether the UE should decode the downlink service using a first modulation order and a first target code rate corresponding to a first MCS table or a second modulation order and a second target code rate corresponding to a second MCS table, wherein the second MCS table corresponds to 1024-QAM. The UE can decode the downlink service, at least in part, based on at least one value of at least one dedicated table bit, according to the first modulation order and the first target code rate or the second modulation order and the second target code rate. In this way, the versatility of downlink permission is improved by enabling dynamic indication and / or configuration of the 1024-QAM MCS table.

[0061] Figure 3This is a diagram illustrating an example of signaling for 1024-QAM table indication and configuration according to this disclosure. As shown, base station 110 and UE 120 can communicate with each other.

[0062] As shown by reference numeral 305 in the accompanying drawings, base station 110 can send and UE 120 can receive RRC configuration information. The RRC configuration message can configure any number of RRC parameters. The RRC configuration may include PDSCH configuration (e.g., PDSCH-Config). In some aspects, the RRC configuration message can configure higher-layer table parameters (e.g., mcs-TableForDCI-Format1-2-r17 and / or mcs-Table-r17). In some aspects, UE 120 and / or base station 110 can send a MAC CE to enable one or more functions associated with at least one dedicated table bit, which may have a value indicating a 1024-QAM MCS table (and / or one or more indices within the 1024-QAM MCS table). In some aspects, for example, the MAC CE can override parameters of the RRC configuration.

[0063] In some aspects, the RRC configuration may include an SPS configuration (e.g., SPS-Config), which may include a default set of MCS parameters associated with an MCS table (which may also be referred to as "fallback MCS parameters"), the MCS table corresponding to a lower QAM than the MCS table corresponding to the current (e.g., configured and / or dynamically indicated and / or activated) set of MCS parameters.

[0064] In some aspects, SPS configurations may include group configurations indicating the association between SPS configuration groups and MCS parameter sets. For example, one or more SPS configuration groups may be identified using at least one table bit in a DCI transport. In some aspects, SPS configurations may be grouped at least in part based on transport priority, values ​​in a DCI transport, and / or time-domain resource allocation, and other examples. For example, in some aspects, at least one dedicated table bit may indicate a priority level. High-priority transports may include, for example, URLLC transports, and low-priority transports may include, for example, eMBB transports. Each SPS configuration in a group may include the same default parameters as each other SPS configuration in the group. Each set of default parameters may correspond to a specified MCS table (e.g., a 64-QAM table, a 256-QAM table, and / or a 1024-QAM table, etc.).

[0065] As shown by reference numeral 310 in the attached figure, base station 110 can transmit and UE 120 can receive DCI transmissions, which include PDSCH resource allocation for downlink services. The DCI transmission may include at least one dedicated table bit indicating whether the UE should use a first modulation order and a first target code rate corresponding to a first MCS table, or a second modulation order and a second target code rate corresponding to a second MCS table, to decode the downlink service. The second MCS table (which may be indicated as "1024-QAM table" or "qam1024") may correspond to 1024-QAM. The first MCS table may include a 256-QAM table (which may be indicated as "256-QAM table" or "qam256") or a 64-QAM low spectral efficiency (SE) table (which may be indicated as "qam64LowSE").

[0066] In some aspects, at least one dedicated table bit may comprise a single bit. In other aspects, at least one dedicated table bit may comprise multiple dedicated table bits indicating whether the UE should use a first modulation order and a first target code rate corresponding to a first MCS table, a second modulation order and a second target code rate corresponding to a second MCS table, or at least a third modulation order and at least a third target code rate corresponding to at least a third MCS table to decode downlink services. In some aspects, at least one dedicated table bit may indicate the value of a table parameter.

[0067] As shown by reference numeral 315 in the attached figure, UE 120 can determine the MCS table to be used for decoding downlink services based at least in part on at least one dedicated table bit. For example, in some aspects, UE 120 can determine whether to use a first modulation order and a first target code rate or a second modulation order and a second target code rate based at least in part on the value of a single bit. In some aspects, where DCI corresponds to RNTI, UE 120 can determine whether to use a first modulation order and a first target code rate or a second modulation order and a second target code rate based at least in part on the value of a single bit. UE 120 can determine whether to use a first modulation order and a first target code rate or a second modulation order and a second target code rate without considering RNTI. In some aspects, where DCI corresponds to RNTI, UE 120 can determine whether to use a first modulation order and a first target code rate or a second modulation order and a second target code rate based at least in part on RNTI. For example, in some aspects, if at least one dedicated table bit has a value of one, the UE can select a 1024-QAM MCS table. If at least one dedicated table bit has a value of zero, the UE can select either a 64-QAM table or a 256-QAM table. In some aspects, a single bit can be added to the DCI transmission to indicate either a first MCS table or a second MCS table.

[0068] In some aspects, the UE 120 may determine the MCS table to use based at least in part on a wireless communication standard that specifies multiple conditions and / or alternatives. In some aspects, the standard may incorporate table parameters, which may have multiple values, each indicating an MCS table in the MCS table set (and / or an index within a table in the MCS table set).

[0069] For example, in some aspects, UE 120 may select the second MCS table at least in part based on the determination that the values ​​of the table parameters correspond to the second MCS table, that UE 120 is not configured with an MCS cell radio network temporary identifier, and that the DCI transmission includes a DCI 1_2 format having a cyclic redundancy check scrambled with the cell radio network temporary identifier. In some aspects, UE 120 may select the second MCS table at least in part based on the determination that the values ​​of the table parameters correspond to the second MCS table, that UE 120 is not configured with an MCS cell radio network temporary identifier, and that the DCI transmission includes a DCI format other than DCI 1_2 having a UE-specific search space with a cyclic redundancy check scrambled with the cell radio network temporary identifier.

[0070] In some aspects, UE 120 may select the second MCS table at least in part based on the determination that the values ​​of the table parameters correspond to the second MCS table, that UE 120 is configured with MCS cell radio network temporary identifier 2 (MCS-C-RNTI2), and that DCI transmission includes cyclic redundancy check scrambled by MCS-C-RNTI2. In some aspects, UE 120 may select the second MCS table at least in part based on the determination that the values ​​of the table parameters correspond to the second MCS table, that UE 120 is not configured with SPS dedicated table parameters, and that DCI transmission includes DCI format 1_2 with cyclic redundancy check scrambled by the configured scheduling radio network temporary identifier, or that SPS is activated by DCI format 1_2 without a corresponding physical downlink control channel transmission.

[0071] In some respects, UE 120 may select the second MCS table based at least in part on the determination that the values ​​of the table parameters correspond to the second MCS table, that UE 120 is not configured with SPS-specific table parameters, and that the DCI transmission includes DCI format 1_1 with cyclic redundancy check scrambled by a configured scheduling radio network temporary identifier, or that the SPS is activated by DCI format 1_1 without a corresponding physical downlink control channel transmission.

[0072] In some aspects, wireless communication standards can specify one or more table parameters (e.g., mcs-TableForDCI-Format1-2-r17, mcs-table-r17, mcs-table-rel17), which can be configured to have values ​​indicating 1024-QAM MCS tables. In this way, for example, the above selection can be specified as a series of if-then decision statements, such as the following:

[0073] For data containing CRNTI, MCS-C-RNTI, Temporary C-RNTI (TC-RNTI), CS-RNTI, and System Information (SI)

[0074] PDSCH scheduled with DCI format 1_0, 1_1, or 1_2 scrambled RNTI, Random Access (RA)-RNTI, Message B (MsgB)-RNTI, or Paging (P)-RNTI, or PDSCH scrambled with cyclic redundancy check (CRC), or PDSCH scheduled without using the corresponding PDSCH transmission of the higher-layer PDSCH configuration SPSConfig.

[0075] If the higher-level parameter mcs-TableForDCI-Format1-2-r16 (or mcs-TableForDCI-Format1-2-r17 (if supported)) given by PDSCH-Config is set to "qam256", and the PDSCH is scheduled by a PDCCH with DCI format 1_2 that includes a CRC scrambled by C-RNTI,

[0076] - The UE should use the IMCS and Table 5.1.3.1-2 to determine the modulation order (Qm) and target code rate (R) to be used in the physical downlink shared channel.

[0077] elseif The UE is not configured with MCS-C-RNTI, the higher-layer parameter mcs-TableForDCI-Format1-2-r16 (mcs-TableForDCI-Format1-2-r17) given by PDSCH-Config is set to "qam64LowSE", and the PDSCH is scheduled by a PDCCH with DCI format 1_2 scrambled by C-RNTI.

[0078] - The UE should use the IMCS and Table 5.1.3.1-3 to determine the modulation order (Qm) and target code rate (R) to be used in the physical downlink shared channel.

[0079] elseif The UE is not configured with MCS-C-RNTI, the higher-layer parameter mcs-TableForDCI-Format1-2-r17 given by PDSCH-Config is set to qam1024, and the PDSCH is scheduled by a PDCCH with DCI format 1_2 scrambled by C-RNTI.

[0080] - The UE should use the IMCS and 1024-QAM table to determine the modulation order (Qm) and target code rate (R) to be used in the physical downlink shared channel.

[0081] elseif the higher-level parameter mcs-Table (mcs-Table-r17) given by PDSCH-Config is set to "qam256", and the PDSCH is scheduled by the PDCCH with DCI format 1_1 including CRC scrambled by C-RNTI.

[0082] - The UE should use the IMCS and Table 5.1.3.1-2 to determine the modulation order (Qm) and target code rate (R) to be used in the physical downlink shared channel.

[0083] elseif The UE is not configured with MCS-C-RNTI, the higher-layer parameter mcs-Table (mcs-Table-r17) given by PDSCH-Config is set to "qam64LowSE", and the PDSCH is scheduled by a PDCCH with a DCI format other than DCI format 1_2 that has a CRC scrambled by C-RNTI in the UE-specific search space.

[0084] - The UE should use the IMCS and Table 5.1.3.1-3 to determine the modulation order (Qm) and target code rate (R) to be used in the physical downlink shared channel.

[0085] elseif The UE is not configured with MCS-C-RNTI, the higher-layer parameter mcs-Table-r17 given by PDSCH-Config is set to "qam1024", and the PDSCH is scheduled by a PDCCH with a DCI format other than DCI format 1_2 that has a CRC scrambled by C-RNTI in the UE-specific search space.

[0086] - The UE should use the IMCS and 1024QAM tables to determine the modulation order (Qm) and target code rate (R) to be used in the physical downlink shared channel.

[0087] elseif The UE is configured with MCS-C-RNTI, and the PDSCH is scheduled by a PDCCH with a CRC scrambled by MCS-C-RNTI.

[0088] - The UE should use the IMCS and Table 5.1.3.1-3 to determine the modulation order (Qm) and target code rate (R) to be used in the physical downlink shared channel.

[0089] elseif The UE is configured with MCS-C-RNTI2, and the PDSCH is scheduled by a PDCCH with a CRC scrambled by MCS-C-RNTI2.

[0090] - The UE should use the IMCS and 1024-QAM table to determine the modulation order (Qm) and target code rate (R) to be used in the physical downlink shared channel.

[0091] elseif The UE is not configured with the higher-level parameter mcs-Table (mcs-TableRel-17) given by SPS-config, and the lower-level parameter mcs-TableForDCI-Format1-2-r16 (mcs-TableForDCI-Format1-2-r17) given by PDSCH-Config is set to "qam256".

[0092] -if PDSCH is scheduled by PDCCH with DCI format 1_2 including CRC scrambled by CS-RNTI, or

[0093] -if the PDSCH of an SPS activated by DCI format 1_2 is scheduled without the corresponding PDCCH transmission using SPS-Config,

[0094] - The UE should use the IMCS and Table 5.1.3.1-2 to determine the modulation order (Qm) and target code rate (R) to be used in the physical downlink shared channel.

[0095] elseif The UE is not configured with the higher-level parameter mcs-Table (mcs-TableRel-17) given by SPS-config, and the lower-level parameter mcs-TableForDCI-Format1-2-r17 given by PDSCH-Config is set to qam1024.

[0096] -if PDSCH is scheduled by PDCCH with DCI format 1_2 including CRC scrambled by CS-RNTI, or

[0097] -if the PDSCH of an SPS activated by DCI format 1_2 is scheduled without the corresponding PDCCH transmission using SPS-Config,

[0098] - The UE should use the IMCS and 1024-QAM table to determine the modulation order (Qm) and target code rate (R) to be used in the physical downlink shared channel.

[0099] elseif The UE is not configured with the higher-level parameter mcs-Table (mcs-TableRel-17) given by SPS-config, and the lower-level parameter mcs-Table (mcs-table rel17) given by PDSCH-Config is set to "qam256".

[0100] -if PDSCH is scheduled by PDCCH with DCI format 1_1 including CRC scrambled by CS-RNTI, or

[0101] -if the PDSCH of an SPS activated by DCI format 1_1 is scheduled without the corresponding PDCCH transmission using SPS-Config,

[0102] - The UE should use the IMCS and Table 5.1.3.1-2 to determine the modulation order (Qm) and target code rate (R) to be used in the physical downlink shared channel.

[0103] elseif The UE is not configured with the higher-level parameter mcs-table re17 given by SPS-config, and the lower-level parameter mcs-table re17 given by PDSCH-Config is set to qam1024.

[0104] -if PDSCH is scheduled by PDCCH with DCI format 1_1 including CRC scrambled by CS-RNTI, or

[0105] -if the PDSCH of an SPS activated by DCI format 1_1 is scheduled without the corresponding PDCCH transmission using SPS-Config,

[0106] - The UE should use the IMCS and 1024QAM tables to determine the modulation order (Qm) and target code rate (R) to be used in the physical downlink shared channel.

[0107] elseif The UE is configured with the higher-layer parameter mcs-Table (mcs-Table Rel-17) given by SPS-config, which is set to "qam64LowSE".

[0108] -if PDSCH is scheduled by PDCCH with CRC scrambled by CS-RNTI, or

[0109] -if PDSCH is scheduled without using the corresponding PDCCH transport of SPS-Config,

[0110] - The UE should use the IMCS and Table 5.1.3.1-3 to determine the modulation order (Qm) and target code rate (R) to be used in the physical downlink shared channel.

[0111] else

[0112] - The UE should use IMCS and Table 5.1.3.1-1 to determine the modulation order (Qm) and target code rate (R) to be used in the physical downlink shared channel.

[0113] Any number of modifications to the aforementioned languages ​​may be included and are considered within the scope of this disclosure.

[0114] As shown by reference numeral 320 in the accompanying drawings, base station 110 can transmit and UE 120 can receive downlink services encoded according to indications in DCI transmission. As shown by reference numeral 325 in the accompanying drawings, UE 120 can decode the downlink services based at least in part on at least one value of at least one dedicated table bit, according to a first modulation order and a first target code rate or a second modulation order and a second target code rate.

[0115] As shown by reference numeral 330 in the attached figure, UE 120 can send, and base station 110 can receive, an acknowledgment (ACK) / negative acknowledgment (NACK) indicating whether the downlink service has been successfully decoded. In some aspects, UE 120 can determine that the number of NACKs sent within a measurement window meets a threshold. UE 120 can select a default set of MCS parameters based at least in part on determining that the number of NACKs meets the threshold.

[0116] In some aspects, UE 120 can measure CSI and send a CSI report indicating the recommended MCS table to be used when interpreting the CSI report. In some aspects, base station 110 can send an indication, at least in part, of the recommended MCS table to be used when calculating CQI, and UE 120 can receive the indication.

[0117] As pointed out above, Figure 3 This is provided as an example. Other examples may differ from the one provided. Figure 3 The example described.

[0118] Figure 4 This is a diagram illustrating, for example, an example process 400 performed by a UE according to various aspects of this disclosure. Example process 400 is an example in which a UE (e.g., UE 120) performs operations associated with signaling for 1024-QAM table indication and configuration.

[0119] like Figure 4 As shown, in some aspects, process 400 may include: receiving a DCI transmission, the DCI transmission including PDSCH resource allocation for downlink services, wherein the DCI transmission includes at least one dedicated table bit indicating whether the UE should use a first modulation order and a first target code rate corresponding to a first MCS table or a second modulation order and a second target code rate corresponding to a second MCS table to decode the downlink services (block 410). For example, the UE (e.g., using...) Figure 6The receiving component 602 depicted can receive DCI transmissions, which include PDSCH resource allocation for downlink services. The DCI transmissions include at least one dedicated table bit indicating whether the UE should use a first modulation order and a first target code rate corresponding to a first MCS table or a second modulation order and a second target code rate corresponding to a second MCS table, wherein the second MCS table corresponds to 1024-QAM, as described above.

[0120] like Figure 4 Further, in some aspects, process 400 may include: decoding downlink traffic based at least in part on at least one value of at least one dedicated table bit, according to a first modulation order and a first target code rate or a second modulation order and a second target code rate (block 420). For example, a UE (e.g., using...) Figure 6 The determining component 608 described herein may decode downlink traffic based at least in part on at least one value of at least one dedicated table bit, according to a first modulation order and a first target code rate or a second modulation order and a second target code rate, as described above.

[0121] Process 400 may include additional aspects, such as any single aspect or any combination thereof described below and / or in conjunction with one or more other processes described elsewhere herein.

[0122] In the first aspect, the first MCS table includes at least one of a 256-QAM table or a 64-QAM low spectral efficiency table.

[0123] In the second aspect, either alone or in combination with the first aspect, at least one dedicated table bit comprises a single bit.

[0124] In the third aspect, either alone or in combination with one or more of the first and second aspects, process 400 includes: determining, at least in part, whether to use a first modulation order and a first target code rate or to use a second modulation order and a second target code rate based on the value of a single bit.

[0125] In the fourth aspect, either alone or in combination with one or more of the first to third aspects, the DCI corresponds to the RNTI, and wherein determining whether to use the first modulation order and the first target code rate or to use the second modulation order and the second target code rate based at least in part on the value of a single bit includes: determining whether to use the first modulation order and the first target code rate or to use the second modulation order and the second target code rate without considering the RNTI.

[0126] In the fifth aspect, either alone or in combination with one or more of the first to fourth aspects, DCI corresponds to RNTI, and wherein determining whether to use a first modulation order and a first target code rate or to use a second modulation order and a second target code rate based at least in part on the value of a single bit includes: determining whether to use a first modulation order and a first target code rate or to use a second modulation order and a second target code rate based at least in part on RNTI.

[0127] In the sixth aspect, either alone or in combination with one or more of the first to fifth aspects, at least one dedicated table bit includes a plurality of dedicated table bits indicating whether the UE should use a first modulation order and a first target code rate corresponding to a first MCS table, a second modulation order and a second target code rate corresponding to a second MCS table, or at least a third modulation order and at least a third target code rate corresponding to at least a third MCS table to decode downlink services.

[0128] In the seventh aspect, either alone or in combination with one or more of the first to sixth aspects, at least one dedicated table bit indicates the value of the table parameter.

[0129] In the eighth aspect, either alone or in combination with one or more of the first to seventh aspects, process 400 includes: selecting the second MCS table based at least in part on the determination that the value of the table parameter corresponds to a second MCS table, that the UE is not configured with an MCS cell radio network temporary identifier, and that the DCI transmission includes a DCI 1_2 format having a cyclic redundancy check scrambled by the cell radio network temporary identifier.

[0130] In the ninth aspect, either alone or in combination with one or more of the first to eighth aspects, process 400 includes: selecting the second MCS table based at least in part on the following: the values ​​of the table parameters correspond to a second MCS table; the UE is not configured with an MCS cell radio network temporary identifier; and the DCI transmission includes the determination of a DCI format other than DCI format 1_2 that has a cyclic redundancy check scrambled by the cell radio network temporary identifier in the UE-specific search space.

[0131] In the tenth aspect, either alone or in combination with one or more aspects from the first to the ninth aspects, process 400 includes: selecting the second MCS table based at least in part on the determination of the values ​​of the table parameters corresponding to the second MCS table, the UE being configured with MCS-C-RNTI2, and the DCI transmission including cyclic redundancy check scrambled by MCS-C-RNTI2.

[0132] In the eleventh aspect, either alone or in combination with one or more of the first to tenth aspects, process 400 includes: selecting the second MCS table based at least in part on the determination that the value of the table parameter corresponds to the second MCS table, the UE is not configured with SPS-specific table parameters, and the DCI transmission includes DCI format 1_2 with cyclic redundancy check scrambled by a configured scheduling radio network temporary identifier, or the SPS is activated by DCI format 1_2 without a corresponding physical downlink control channel transmission.

[0133] In the twelfth aspect, either alone or in combination with one or more of the first to eleventh aspects, process 400 includes: selecting the second MCS table based at least in part on the following: the value of the table parameter corresponds to a second MCS table; the UE is not configured with SPS-specific table parameters; and the DCI transmission includes a DCI format 1_1 with cyclic redundancy check scrambled by a configured scheduling radio network temporary identifier, or the SPS is activated by DCI format 1_1 without a corresponding physical downlink control channel transmission.

[0134] In the thirteenth aspect, either alone or in combination with one or more aspects from the first to the twelfth aspects, process 400 includes: sending a MAC CE to overwrite the RRC configuration to enable one or more functions associated with at least one dedicated table bit.

[0135] In the fourteenth aspect, either alone or in combination with one or more aspects from the first to the thirteenth aspects, process 400 includes: receiving an SPS configuration that includes a default set of MCS parameters associated with an MCS table, the MCS table corresponding to a lower QAM than the MCS table corresponding to the current set of MCS parameters.

[0136] In the fifteenth aspect, either alone or in combination with one or more of the first to fourteenth aspects, process 400 includes: determining that the number of negative acknowledgments sent within the measurement window meets a threshold; and selecting a default set of MCS parameters based at least in part on determining that the number of negative acknowledgments meets the threshold.

[0137] In the sixteenth aspect, either alone or in combination with one or more of the first to fifteenth aspects, process 400 includes: receiving a group configuration indicating the association between an SPS configuration group and an MCS parameter set, wherein at least one dedicated table bit indicates the SPS configuration group.

[0138] In the seventeenth aspect, either alone or in combination with one or more of the first to sixteenth aspects, the SPS configuration group corresponds to a priority level, wherein at least one dedicated table bit indicates the priority level.

[0139] In the eighteenth aspect, alone or in combination with one or more aspects from the first to the seventeenth aspects, process 400 includes: sending a CSI report that indicates the recommended MCS table to be used in interpreting the CSI report.

[0140] In the nineteenth aspect, alone or in combination with one or more aspects from the first to the eighteenth aspects, process 400 includes: receiving an indication, at least in part, based on a proposed MCS table, to use one or more MCS tables when calculating the channel quality indicator.

[0141] Although Figure 4 An example box of process 400 is shown, but in some aspects, process 400 may include... Figure 4 The boxes depicted in the diagram are compared to additional boxes, fewer boxes, different boxes, or boxes arranged in a different manner. Alternatively, two or more boxes in process 400 may be executed in parallel.

[0142] Figure 5 This is a diagram illustrating, for example, an example process 500 performed by a base station according to various aspects of this disclosure. Example process 500 is an example in which a base station (e.g., base station 110) performs operations associated with signaling for 1024-QAM table indication and configuration.

[0143] like Figure 5 As shown, in some aspects, process 500 may include: sending a DCI transmission to the UE, the DCI transmission including PDSCH resource allocation for downlink services, wherein the DCI transmission includes at least one dedicated table bit indicating whether the UE should use a first modulation order and a first target code rate corresponding to a first MCS table or a second modulation order and a second target code rate corresponding to a second MCS table to decode the downlink services (block 510). For example, a base station (e.g., using...) Figure 7 The transmitting component 704 described herein can transmit a DCI transmission to the UE, the DCI transmission including a PDSCH resource allocation for downlink services, wherein the DCI transmission includes at least one dedicated table bit indicating whether the UE should use a first modulation order and a first target code rate corresponding to a first MCS table or a second modulation order and a second target code rate corresponding to a second MCS table to decode the downlink services, as described above.

[0144] like Figure 5Further shown, in some aspects, process 500 may include: transmitting downlink traffic based at least in part on at least one value of at least one dedicated table bit, according to a first modulation order and a first target code rate or a second modulation order and a second target code rate (block 520). For example, a base station (e.g., using...) Figure 7 The transmitting component 704 described herein can transmit downlink services, at least in part, based on at least one value of at least one dedicated table bit, according to a first modulation order and a first target code rate or a second modulation order and a second target code rate, as described above.

[0145] Process 500 may include additional aspects, such as any single aspect or any combination thereof described below and / or in conjunction with one or more other process descriptions elsewhere described herein.

[0146] In the first aspect, the first MCS table includes at least one of a 256-QAM table or a 64-QAM low SE table.

[0147] In the second aspect, either alone or in combination with the first aspect, at least one dedicated table bit comprises a single bit.

[0148] In the third aspect, either alone or in combination with one or more of the first and second aspects, DCI corresponds to RNTI, and wherein determining whether to use a first modulation order and a first target code rate or to use a second modulation order and a second target code rate is based at least in part on the value of a single bit, and is based at least in part on determining whether to use a first modulation order and a first target code rate or to use a second modulation order and a second target code rate without considering RNTI.

[0149] In the fourth aspect, either alone or in combination with one or more of the first to third aspects, DCI corresponds to RNTI, and wherein determining whether to use a first modulation order and a first target code rate or to use a second modulation order and a second target code rate is based at least in part on the value of a single bit.

[0150] In the fifth aspect, either alone or in combination with one or more of the first to fourth aspects, at least one dedicated table bit indicates the value of the table parameter.

[0151] In the sixth aspect, either alone or in combination with one or more of the first to fifth aspects, process 500 includes: sending an SPS configuration that includes a default set of MCS parameters associated with an MCS table that corresponds to a lower QAM than the MCS table corresponding to the current set of MCS parameters.

[0152] In the seventh aspect, either alone or in combination with one or more of the first to sixth aspects, process 500 includes: sending a group configuration indicating the association between the SPS configuration group and the MCS parameter set, wherein at least one dedicated table bit indicates the SPS configuration group.

[0153] Although Figure 5 An example box of process 500 is shown, but in some aspects, process 500 may include... Figure 5 The boxes depicted in the diagram are compared to additional boxes, fewer boxes, different boxes, or boxes arranged in a different manner. Alternatively, two or more boxes in process 500 may be executed in parallel.

[0154] Figure 6 This is a block diagram of an example device 600 for wireless communication. Device 600 may be a UE, or a UE may include device 600. In some aspects, device 600 includes a receiving component 602 and a transmitting component 604, which can communicate with each other (e.g., via one or more buses and / or one or more other components). As shown, device 600 can use the receiving component 602 and the transmitting component 604 to communicate with another device 606 (such as a UE, a base station, or another wireless communication device). As further shown, device 600 may include a determining component 608.

[0155] In some respects, device 600 can be configured to perform the functions described herein. Figure 3 One or more operations described herein. Alternatively or concurrently, device 600 may be configured to perform one or more processes described herein, such as Figure 4 The process is 400. In some respects, Figure 6 The device 600 and / or one or more components shown may include the elements described above. Figure 2 One or more components of the UE as described. Alternatively or in addition, Figure 6 One or more components shown can be combined with the above. Figure 2 The description is implemented within one or more components. Alternatively, one or more components in the set of components may be implemented, at least partially, as software stored in memory. For example, a component (or a portion of a component) may be implemented as instructions or code stored in a non-transitory computer-readable medium and executable by a controller or processor to perform the function or operation of the component.

[0156] Receiver 602 may receive communications from device 606, such as reference signals, control information, data communications, or combinations thereof. Receiver 602 may provide the received communications to one or more other components of device 600. In some aspects, receiver 602 may perform signal processing on the received communications (e.g., filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, demapping, equalization, interference cancellation, or decoding, and other examples), and may provide the processed signal to one or more other components of device 606. In some aspects, receiver 602 may include the elements described above. Figure 2 The described UE includes one or more antennas, demodulators, MIMO detectors, receiver processors, controllers / processors, memory, or combinations thereof.

[0157] Transmitting component 604 can transmit communications, such as reference signals, control information, data communications, or combinations thereof, to device 606. In some aspects, one or more other components of device 606 can generate communications and provide the generated communications to transmitting component 604 for transmission to device 606. In some aspects, transmitting component 604 can perform signal processing on the generated communications (e.g., filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, and other examples), and can transmit the processed signals to device 606. In some aspects, transmitting component 604 can include the combinations described above. Figure 2 The described UE includes one or more antennas, modulators, transmit MIMO processors, transmit processors, controllers / processors, memory, or combinations thereof. In some aspects, the transmit component 604 may be co-located with the receive component 602 in a transceiver.

[0158] The receiving component 602 can receive a DCI transmission including PDSCH resource allocation for downlink services. The DCI transmission includes at least one dedicated table bit indicating whether the UE should decode the downlink services using a first modulation order and a first target code rate corresponding to a first MCS table, or using a second modulation order and a second target code rate corresponding to a second MCS table, wherein the second MCS table corresponds to 1024-QAM. The determining component 608 can decode the downlink services based at least in part on at least one value of the at least one dedicated table bit, according to either the first modulation order and the first target code rate or the second modulation order and the second target code rate. In some aspects, the determining component 608 may include the above-described combination of... Figure 2 The described UE includes one or more antennas, modulators, transmit MIMO processors, transmit processors, controllers / processors, memory, or combinations thereof. In some aspects, component 608 includes receive component 602 and / or transmit component 604.

[0159] The determining component 608 can determine, at least in part, whether to use a first modulation order and a first target code rate or a second modulation order and a second target code rate based on the value of a single bit. The determining component 608 can select the second MCS table based at least in part on the following: the value of the table parameter corresponds to a second MCS table; the UE is not configured with an MCS cell radio network temporary identifier; and the DCI transmission includes a DCI 1_2 format with cyclic redundancy check scrambled by the cell radio network temporary identifier.

[0160] The determining component 608 may select the second MCS table based at least in part on the determination that the values ​​of the table parameters correspond to the second MCS table, that the UE is not configured with MCS-C-RNTI, and that the DCI transmission includes a DCI format other than DCI format 1_2 that has a CRC scrambled by C-RNTI in the UE-specific search space.

[0161] The determining component 608 may select the second MCS table based at least in part on the determination that the value of the table parameter corresponds to the second MCS table, that the UE is configured with MCS-C-RNTI2, and that the DCI transmission includes a CRC scrambled by MCS-C-RNTI2.

[0162] The determining component 608 may select the second MCS table based at least in part on the determination that the value of the table parameter corresponds to the second MCS table, the UE is not configured with SPS-specific table parameters, and the DCI transmission includes DCI format 1_2 with cyclic redundancy check scrambled by the configured scheduling radio network temporary identifier, or the SPS is activated by DCI format 1_2 without a corresponding PDSCH transmission.

[0163] The determining component 608 may select the second MCS table based at least in part on the determination that the value of the table parameter corresponds to the second MCS table, the UE is not configured with SPS-specific table parameters, and the DCI transmission includes DCI format 1_1 with CRC scrambled by CS-RNTI or the SPS is activated by DCI format 1_1 without a corresponding PDSCH transmission.

[0164] The transmitting component 604 can transmit a MAC CE to overwrite the RRC configuration to enable one or more functions associated with at least one dedicated table bit.

[0165] The receiving component 602 can receive an SPS configuration that includes a default set of MCS parameters associated with an MCS table, which corresponds to a lower QAM than the MCS table corresponding to the current set of MCS parameters.

[0166] Component 608 can determine whether the number of NACKs sent within the measurement window meets a threshold. Component 608 can select a default set of MCS parameters based at least in part on determining that the number of NACKs meets the threshold.

[0167] The receiving component 602 can receive a group configuration indicating the association between an SPS configuration group and an MCS parameter set, wherein at least one dedicated table bit indicates the SPS configuration group.

[0168] The transmitting component 604 can transmit a CSI report indicating the recommended MCS table to be used in interpreting the CSI report. The receiving component 602 can receive, at least in part, instructions to use one or more MCS tables in calculating the CQI, based on the recommended MCS tables.

[0169] Figure 6 The number and arrangement of components shown are provided as an example. In reality, they can exist in combination with... Figure 6 The components shown are compared to additional components, fewer components, different components, or components arranged in a different way. Furthermore, Figure 6 The two or more components shown can be implemented within a single component, or Figure 6 The single component shown can be implemented as multiple distributed components. Alternatively, Figure 6 The set (one or more) components shown can perform actions described by Figure 6 The other set of components shown performs one or more functions.

[0170] Figure 7 This is a block diagram of an example device 700 for wireless communication. Device 700 may be a base station, or a base station may include device 700. In some aspects, device 700 includes a receiving component 702 and a transmitting component 704, which can communicate with each other (e.g., via one or more buses and / or one or more other components). As shown, device 700 can use the receiving component 702 and the transmitting component 704 to communicate with another device 706 (such as a UE, a base station, or another wireless communication device). As further shown, device 700 may include a determining component 708.

[0171] In some respects, device 700 can be configured to perform the functions described herein. Figure 3 One or more operations described herein. Alternatively or concurrently, the apparatus 700 may be configured to perform one or more processes described herein, such as... Figure 5 The process is 500. In some aspects, Figure 7 The device 700 and / or one or more components shown may include the elements described above. Figure 2 One or more components of the described base station. Alternatively, Figure 7One or more components shown can be combined with the above. Figure 2 The description is implemented within one or more components. Alternatively, one or more components in the set of components may be implemented, at least partially, as software stored in memory. For example, a component (or a portion of a component) may be implemented as instructions or code stored in a non-transitory computer-readable medium and executable by a controller or processor to perform the function or operation of the component.

[0172] Receiver 702 may receive communications from device 706, such as reference signals, control information, data communications, or combinations thereof. Receiver 702 may provide the received communications to one or more other components of device 700. In some aspects, receiver 702 may perform signal processing on the received communications (e.g., filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, demapping, equalization, interference cancellation, or decoding, and other examples), and may provide the processed signal to one or more other components of device 706. In some aspects, receiver 702 may include the elements described above. Figure 2 The described base station includes one or more antennas, demodulators, MIMO detectors, receiver processors, controllers / processors, memory, or combinations thereof.

[0173] Transmitting component 704 can transmit communications, such as reference signals, control information, data communications, or combinations thereof, to device 706. In some aspects, one or more other components of device 706 can generate communications and provide the generated communications to transmitting component 704 for transmission to device 706. In some aspects, transmitting component 704 can perform signal processing on the generated communications (e.g., filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, and other examples), and can transmit the processed signal to device 706. In some aspects, transmitting component 704 can include the combinations described above. Figure 2 The described base station includes one or more antennas, a modulator, a transmit MIMO processor, a transmit processor, a controller / processor, a memory, or a combination thereof. In some aspects, the transmit component 704 may be co-located with the receive component 702 in a transceiver.

[0174] The transmitting component 704 can transmit a DCI transmission to the UE, the DCI transmission including PDSCH resource allocation for downlink services, wherein the DCI transmission includes at least one dedicated table bit indicating whether the UE should use a first modulation order and a first target code rate corresponding to a first MCS table or a second modulation order and a second target code rate corresponding to a second MCS table to decode the downlink services. The transmitting component 704 can transmit the downlink services based at least in part on at least one value of at least one dedicated table bit, according to the first modulation order and the first target code rate or the second modulation order and the second target code rate.

[0175] The sending component 704 can send an SPS configuration that includes a default set of MCS parameters associated with an MCS table, which corresponds to a lower QAM than the MCS table corresponding to the current set of MCS parameters.

[0176] The transmitting component 704 can transmit a group configuration indicating the association between the SPS configuration group and the MCS parameter set, wherein at least one dedicated table bit indicates the SPS configuration group.

[0177] Determining component 708 can determine one or more MCS parameters, MCS tables, indexes and / or configurations associated with one or more MCS tables, and other examples. In some aspects, determining component 708 may include the combination of the above. Figure 2 The described base station includes one or more antennas, modulators, transmit MIMO processors, transmit processors, controllers / processors, memory, or combinations thereof. In some aspects, determining component 708 may include receive component 702 and / or transmit component 704.

[0178] Figure 7 The number and arrangement of components shown are provided as an example. In reality, they can exist in combination with... Figure 7 The components shown are compared to additional components, fewer components, different components, or components arranged in a different way. Furthermore, Figure 7 The two or more components shown can be implemented within a single component, or Figure 7 The single component shown can be implemented as multiple distributed components. Alternatively, Figure 7 The set (one or more) components shown can perform actions described by Figure 7 The other set of components shown performs one or more functions.

[0179] The following provides a summary of some aspects of this disclosure:

[0180] Aspect 1: A method of wireless communication performed by a user equipment (UE), comprising: receiving downlink control information (DCI) transmission, the DCI transmission including physical downlink shared channel resource allocation for downlink services, wherein the DCI transmission includes at least one dedicated table bit, the at least one dedicated table bit indicating whether the UE is to decode the downlink services using a first modulation order and a first target code rate corresponding to a first modulation and coding scheme (MCS) table or using a second modulation order and a second target code rate corresponding to a second MCS table, wherein the second MCS table corresponds to 1024 quadrature amplitude modulation (QAM); and decoding the downlink services based at least in part on at least one value of the at least one dedicated table bit, according to the first modulation order and the first target code rate or the second modulation order and the second target code rate.

[0181] Aspect 2: According to the method of aspect 1, wherein the first MCS table includes at least one of the following: a 256-QAM table or a 64-QAM low spectral efficiency table.

[0182] Aspect 3: The method according to any one of Aspect 1 or 2, wherein the at least one dedicated table bit comprises a single bit.

[0183] Aspect 4: The method according to aspect 3 further includes: determining, at least in part, whether to use the first modulation order and the first target code rate or to use the second modulation order and the second target code rate based on the value of the single bit.

[0184] Aspect 5: The method according to aspect 4, wherein the DCI corresponds to a Radio Network Temporary Identifier (RNTI), and wherein determining whether to use the first modulation order and the first target code rate or the second modulation order and the second target code rate based at least in part on the value of the single bit comprises: determining whether to use the first modulation order and the first target code rate or the second modulation order and the second target code rate without considering the RNTI.

[0185] Aspect 6: The method according to aspect 4, wherein the DCI corresponds to a Radio Network Temporary Identifier (RNTI), and wherein determining whether to use the first modulation order and the first target code rate or the second modulation order and the second target code rate is based at least in part on the value of the single bit comprises: determining whether to use the first modulation order and the first target code rate or the second modulation order and the second target code rate is based at least in part on the RNTI.

[0186] Aspect 7: The method according to any one of Aspects 1-6, wherein the at least one dedicated table bit comprises a plurality of dedicated table bits, the plurality of dedicated table bits indicating whether the UE is to use a first modulation order and a first target code rate corresponding to a first MCS table, a second modulation order and a second target code rate corresponding to a second MCS table, or to use at least a third modulation order and at least a third target code rate corresponding to at least a third MCS table to decode the downlink service.

[0187] Aspect 8: The method according to any one of Aspect 1 or 2, wherein the at least one dedicated table bit indicates the value of the table parameter.

[0188] Aspect 9: The method according to aspect 8 further includes: selecting the second MCS table based at least in part on the fact that the value of the table parameter corresponds to the second MCS table, that the UE is not configured with an MCS cell radio network temporary identifier, and that the DCI transmission includes a DCI 1_2 format having a cyclic redundancy check scrambled by the cell radio network temporary identifier.

[0189] Aspect 10: The method according to aspect 8 further includes: selecting the second MCS table based at least in part on the fact that the value of the table parameter corresponds to the second MCS table, that the UE is not configured with an MCS cell radio network temporary identifier, and that the DCI transmission includes the determination of a DCI format other than DCI format 1_2 having a cyclic redundancy check scrambled by the cell radio network temporary identifier in a UE-specific search space.

[0190] Aspect 11: The method according to aspect 8 further includes: selecting the second MCS table based at least in part on the value of the table parameter corresponding to the second MCS table, the UE being configured with an MCS cell radio network temporary identifier 2 (MCS-C-RNTI2), and the determination that the DCI transmission includes a cyclic redundancy check scrambled by MCS-C-RNTI2.

[0191] Aspect 12: The method according to aspect 8 further includes: selecting the second MCS table based at least in part on the fact that the value of the table parameter corresponds to the second MCS table, the UE is not configured with a semi-persistent scheduling (SPS) dedicated table parameter, and the DCI transmission includes a determination of DCI format 1_2 with cyclic redundancy check scrambled by a configured scheduling radio network temporary identifier or the SPS being activated by DCI format 1_2 without a corresponding physical downlink control channel transmission.

[0192] Aspect 13: The method according to aspect 8 further includes: selecting the second MCS table based at least in part on the fact that the value of the table parameter corresponds to the second MCS table, the UE is not configured with a semi-persistent scheduling (SPS) dedicated table parameter, and the DCI transmission includes a determination of DCI format 1_1 with cyclic redundancy check scrambled by a configured scheduling radio network temporary identifier or the SPS being activated by DCI format 1_1 without a corresponding physical downlink control channel transmission.

[0193] Aspect 14: The method according to any one of aspects 1-13 further includes: transmitting a medium access control control element to overwrite a radio resource control (RRC) configuration to enable one or more functions associated with the at least one dedicated table bit.

[0194] Aspect 15: The method according to any one of Aspects 1-14 further includes: receiving a semi-persistent scheduling configuration, the semi-persistent scheduling configuration including a default set of MCS parameters associated with an MCS table, the MCS table corresponding to a lower QAM than the MCS table corresponding to the current set of MCS parameters.

[0195] Aspect 16: The method according to aspect 15 further includes: determining that the number of negative acknowledgments sent within the measurement window meets a threshold; and selecting the default MCS parameter set based at least in part on determining that the number of negative acknowledgments meets the threshold.

[0196] Aspect 17: The method according to any one of aspects 1-16 further includes: receiving a group configuration indicating an association between an SPS configuration group and an MCS parameter set, wherein the at least one dedicated table bit indicates the SPS configuration group.

[0197] Aspect 18: The method according to aspect 17, wherein the SPS configuration group corresponds to a priority level, wherein the at least one dedicated table bit indicates the priority level.

[0198] Aspect 19: The method according to any one of Aspects 1-18 further includes: transmitting a Channel State Information (CSI) report, the CSI report indicating a recommended MCS table to be used in interpreting the CSI report.

[0199] Aspect 20: The method according to aspect 19 further includes: receiving an indication to use one or more MCS tables when calculating the channel quality indicator, at least in part based on the proposed MCS table.

[0200] Aspect 21: A method of wireless communication performed by a base station, comprising: transmitting downlink control information (DCI) transmission to a user equipment (UE), the DCI transmission including physical downlink shared channel resource allocation for downlink services, wherein the DCI transmission includes at least one dedicated table bit indicating whether the UE should decode the downlink services using a first modulation order and a first target code rate corresponding to a first modulation and coding scheme (MCS) table or using a second modulation order and a second target code rate corresponding to a second MCS table, wherein the second MCS table corresponds to 1024 quadrature amplitude modulation (QAM); and transmitting the downlink services based at least in part on at least one value of the at least one dedicated table bit, according to the first modulation order and the first target code rate or the second modulation order and the second target code rate.

[0201] Aspect 22: According to the method of aspect 21, wherein the first MCS table includes at least one of the following: a 256-QAM table or a 64-QAM low spectral efficiency table.

[0202] Aspect 23: The method according to any one of Aspects 21 or 22, wherein the at least one dedicated table bit comprises a single bit.

[0203] Aspect 24: The method according to aspect 23, wherein the DCI corresponds to a Radio Network Temporary Identifier (RNTI), and wherein determining whether to use the first modulation order and the first target code rate or the second modulation order and the second target code rate is based at least in part on the value of the single bit, and is based at least in part on determining whether to use the first modulation order and the first target code rate or the second modulation order and the second target code rate without considering the RNTI.

[0204] Aspect 25: The method according to aspect 23, wherein the DCI corresponds to a Radio Network Temporary Identifier (RNTI), and wherein determining whether to use the first modulation order and the first target code rate or the second modulation order and the second target code rate is based at least in part on the value of the single bit.

[0205] Aspect 26: The method according to any one of aspects 21-25, wherein the at least one dedicated table bit indicates the value of the table parameter.

[0206] Aspect 27: The method according to any one of Aspects 21-26 further includes: sending a semi-persistent scheduling configuration, the semi-persistent scheduling configuration including a default set of MCS parameters associated with an MCS table, the MCS table corresponding to a lower QAM than the MCS table corresponding to the current set of MCS parameters.

[0207] Aspect 28: The method according to any one of aspects 21-27 further includes: sending a group configuration indicating the association between the SPS configuration group and the MCS parameter set, wherein the at least one dedicated table bit indicates the SPS configuration group.

[0208] Aspect 29: An apparatus for wireless communication at a device, comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform the method according to one or more of aspects 1-20.

[0209] Aspect 30: An apparatus for wireless communication, comprising a memory and one or more processors coupled to the memory, the memory and the one or more processors being configured to perform the method according to one or more aspects of aspects 1-20.

[0210] Aspect 31: An apparatus for wireless communication, comprising at least one unit for performing the method according to one or more of aspects 1-20.

[0211] Aspect 32: A non-transitory computer-readable medium storing code for wireless communication, said code including instructions executable by a processor to perform the methods described in accordance with one or more of aspects 1-20.

[0212] Aspect 33: A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising one or more instructions which, when executed by one or more processors of a device, cause the device to perform the method according to one or more aspects of aspects 1-20.

[0213] Aspect 34: An apparatus for wireless communication at a device, comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform the method according to one or more of aspects 21-28.

[0214] Aspect 35: An apparatus for wireless communication, comprising a memory and one or more processors coupled to the memory, the memory and the one or more processors being configured to perform the method according to one or more aspects of aspects 21-28.

[0215] Aspect 36: An apparatus for wireless communication, comprising at least one unit for performing the method according to one or more aspects 21-28.

[0216] Aspect 37: A non-transitory computer-readable medium storing code for wireless communication, said code including instructions executable by a processor to perform the methods described in one or more of aspects 21-28.

[0217] Aspect 38: A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising one or more instructions which, when executed by one or more processors of a device, cause the device to perform the method according to one or more aspects of aspects 21-28.

[0218] The foregoing disclosure provides explanations and descriptions, but is not intended to be exhaustive or to limit the aspects to the precise form disclosed. Modifications and variations may be made based on the foregoing disclosure, or modifications and variations may be derived from practice in the aspects.

[0219] As used herein, the term "component" is intended to be interpreted broadly as hardware and / or a combination of hardware and software. Whether referred to as software, firmware, middleware, microcode, hardware description language, or other names, "software" should be interpreted broadly as instructions, instruction sets, code, code segments, program code, programs, subroutines, software modules, applications, software applications, software packages, routines, subroutines, objects, executable files, threads of execution, procedures and / or functions, and other examples. As used herein, processors are implemented using hardware and / or a combination of hardware and software. It will be apparent that the systems and / or methods described herein can be implemented using various forms of hardware and / or combinations of hardware and software. The actual specialized control hardware or software code used to implement these systems and / or methods is not a limitation in any respect. Therefore, while the operation and behavior of systems and / or methods are described herein without reference to specific software code, it is to be understood that software and hardware can be designed to implement systems and / or methods, at least in part, based on the descriptions herein.

[0220] As used in this article, depending on the context, satisfying the threshold can refer to a value greater than the threshold, greater than or equal to the threshold, less than the threshold, less than or equal to the threshold, equal to the threshold, not equal to the threshold, etc.

[0221] Even if a specific combination of features is recited in the claims and / or disclosed in the specification, such combinations are not intended to limit the disclosure of the aspects. In fact, many of these features can be combined in ways that are not specifically recited in the claims and / or not specifically disclosed in the specification. While each dependent claim listed below may directly depend on only one claim, the disclosure of each aspect includes a combination of each dependent claim with every other claim in the claim set. As used herein, the phrase “at least one of” in the list of items refers to any combination of those items, including single members. For example, “at least one of a, b, or c” is intended to cover a, b, c, ab, ac, bc, and abc, as well as any combination of multiples of the same element (e.g., aa, aaa, aab, aac, abb, acc, bb, bbb, bbc, cc, and ccc, or any other ordering of a, b, and c).

[0222] None of the elements, actions, or instructions used herein should be construed as critical or necessary unless explicitly stated otherwise. Furthermore, as used herein, the articles “a” and “an” are intended to include one or more items and may be used interchangeably with “one or more.” Furthermore, as used herein, the article “the” is intended to include one or more items referenced in combination with the article “the” and may be used interchangeably with “one or more.” Furthermore, as used herein, the terms “set” and “group” are intended to include one or more items (e.g., related items, unrelated items, or a combination of related and unrelated items) and may be used interchangeably with “one or more.” Where only one item is anticipated, the phrase “only one” or similar language is used. Furthermore, as used herein, the terms “has,” “have,” “having,” etc., are intended to be open-ended terms. Furthermore, unless explicitly stated otherwise, the phrase “based on” is intended to mean “at least partially based on.” Furthermore, as used herein, the term “or” is intended to be inclusive when used in a series, and may be used interchangeably with “and / or” unless otherwise expressly stated (e.g., if used in conjunction with “any” or “only one of”).

Claims

1. A method of wireless communication performed by a user equipment (UE), comprising: receiving a radio resource control (RRC) message including a table parameter that indicates a modulation and coding scheme (MCS) table of a set of MCS tables and that indicates whether the UE is to decode downlink traffic using a first modulation order and a first target code rate corresponding to a first MCS table of the set of MCS tables or a second modulation order and a second target code rate corresponding to a second MCS table of the set of MCS tables, and wherein the second MCS table corresponds to 1024 quadrature amplitude modulation (QAM), and wherein the MCS table is the first MCS table or the second MCS table; receiving a downlink control information (DCI) transmission including a DCI format; selecting a modulation order and a target code rate corresponding to a MCS table of the set of MCS tables based at least in part on a value of the table parameter in the RRC message and the DCI format; and decoding the downlink traffic in accordance with the selection of the modulation order and the target code rate.

2. The method of claim 1, wherein, the first MCS table includes at least one of: a 256-QAM table, or a 64-QAM low spectral efficiency table.

3. The method of claim 1, wherein, the table parameter includes a single bit.

4. The method of claim 3, further comprising: receiving, in the DCI transmission, a physical downlink shared channel resource allocation for the downlink traffic.

5. The method of claim 4, wherein, the DCI corresponds to a radio network temporary identifier (RNTI), and wherein the selection of the modulation order and the target code rate is not based at least in part on the RNTI.

6. The method of claim 4, wherein, the DCI corresponds to a radio network temporary identifier (RNTI), and wherein the selection of the modulation order and the target code rate is based at least in part on the RNTI.

7. The method of claim 1, wherein, the RRC message includes a plurality of table parameters that indicate whether the UE is to decode the downlink traffic using a first modulation order and a first target code rate corresponding to the first MCS table, a second modulation order and a second target code rate corresponding to the second MCS table, or at least a third modulation order and at least a third target code rate corresponding to at least a third MCS table.

8. The method of claim 1, further comprising: selecting the second MCS table based at least in part on a determination that the value of the table parameter corresponds to the second MCS table, the UE is not configured with a MCS cell radio network temporary identifier, and the DCI transmission associated with the downlink traffic includes a DCI 1_2 format with a cyclic redundancy check scrambled by a cell radio network temporary identifier.

9. The method of claim 1, further comprising: selecting the second MCS table based at least in part on a determination that the value for the table parameter corresponds to the second MCS table, the UE is not configured with a MCS cell radio network temporary identifier, and the DCI transmission associated with the downlink traffic includes a DCI format with a cyclic redundancy check scrambled by a cell radio network temporary identifier.

10. The method of claim 1, further comprising: selecting the second MCS table based at least in part on a determination that the value for the table parameter corresponds to the second MCS table, the UE is configured with a MCS cell radio network temporary identifier 2 (MCS-C-RNTI2), and the DCI transmission associated with the downlink traffic includes a cyclic redundancy check scrambled by MCS-C-RNTI2.

11. The method of claim 1, further comprising: selecting the second MCS table based at least in part on a determination that the value for the table parameter corresponds to the second MCS table, the UE is not configured with a semi-persistent scheduling (SPS) dedicated table parameter, and the DCI transmission associated with the downlink traffic includes a DCI format 1 2 with a cyclic redundancy check scrambled by a configured scheduling radio network temporary identifier or SPS is activated by the DCI format 1 2 without a corresponding physical downlink control channel transmission.

12. The method of claim 1, further comprising: selecting the second MCS table based at least in part on a determination that the value for the table parameter corresponds to the second MCS table, the UE is not configured with a semi-persistent scheduling (SPS) dedicated table parameter, and the DCI transmission associated with the downlink traffic includes a DCI format 1 1 with a cyclic redundancy check scrambled by a configured scheduling radio network temporary identifier or SPS is activated by the DCI format 1 1 without a corresponding physical downlink control channel transmission.

13. The method of claim 1, further comprising: transmitting a medium access control (MAC) control element (CE) to override the RRC message to enable one or more functions associated with the table parameter.

14. The method of claim 1, further comprising: receiving a semi-persistent scheduling configuration including a default MCS parameter set associated with a MCS table, the MCS table corresponding to a lower QAM than a MCS table corresponding to a current MCS parameter set.

15. The method of claim 14, further comprising: determining a number of negative acknowledgements transmitted within a measurement window satisfies a threshold; and selecting the default MCS parameter set based at least in part on determining the number of negative acknowledgements satisfies the threshold.

16. The method of claim 1, further comprising: receiving a group configuration indicating an association between a SPS configuration group and a MCS parameter set, wherein the table parameter indicates the SPS configuration group.

17. The method of claim 16, wherein, The SPS configuration group corresponds to a priority level, and wherein the table parameter indicates the priority level.

18. The method of claim 1, further comprising: transmitting a channel state information (CSI) report that indicates a recommended MCS table to use in interpreting the CSI report.

19. The method of claim 18, further comprising: receiving an indication of one or more MCS tables to use in computing a channel quality indicator based at least in part on the recommended MCS table.

20. A method of wireless communication performed by a network entity, comprising: transmitting, to a user equipment (UE), a radio resource control (RRC) message including a table parameter that indicates a modulation and coding scheme (MCS) table from a set of MCS tables and that indicates whether the UE is to decode downlink traffic using a first modulation order and a first target code rate corresponding to a first MCS table from the set of MCS tables or a second modulation order and a second target code rate corresponding to a second MCS table from the set of MCS tables, and wherein the second MCS table corresponds to 1024 quadrature amplitude modulation (QAM), and wherein the MCS table is the first MCS table or the second MCS table; and transmitting a downlink control information (DCI) transmission including a DCI format; selecting a modulation order and a target code rate corresponding to a MCS table from the set of MCS tables based at least in part on a value of the table parameter in the RRC message and the DCI format; and transmitting the downlink traffic in accordance with the selection of the modulation order and the target code rate.

21. The method of claim 20, wherein, the first MCS table includes at least one of: a 256-QAM table, or a 64-QAM low spectral efficiency table.

22. The method of claim 20, wherein, the table parameter includes a single bit.

23. The method of claim 22, further comprising: transmitting, in the DCI transmission, a physical downlink shared channel resource allocation for the downlink traffic, wherein the DCI corresponds to a radio network temporary identifier (RNTI), and wherein the selection to use the modulation order and the target code rate is not based at least in part on the RNTI.

24. The method of claim 22, further comprising: transmitting, in the DCI transmission, a physical downlink shared channel resource allocation for the downlink traffic, wherein the DCI corresponds to a radio network temporary identifier (RNTI), and wherein the selection to use the modulation order and the target code rate is based at least in part on the RNTI.

25. The method of claim 20, further comprising: transmitting a semi-persistent scheduling configuration including a set of default MCS parameters associated with a MCS table corresponding to a lower QAM than a MCS table corresponding to a current set of MCS parameters.

26. The method of claim 20, further comprising: transmitting a group configuration that indicates an association between a SPS configuration group and a set of MCS parameters, The table parameter indicates the SPS configuration group.

27. A user equipment (UE) for wireless communication, comprising: one or more memories; and one or more processors coupled to the one or more memories, the one or more processors configured to: receive a radio resource control (RRC) message including a table parameter, the table parameter indicating a modulation and coding scheme (MCS) table of a set of MCS tables and indicating whether the UE is to decode downlink traffic using a first modulation order and a first target code rate corresponding to a first MCS table of the set of MCS tables or a second modulation order and a second target code rate corresponding to a second MCS table of the set of MCS tables, and wherein the second MCS table corresponds to 1024 quadrature amplitude modulation (QAM), and wherein the MCS table is the first MCS table or the second MCS table; receive a downlink control information (DCI) transmission including a DCI format; select a modulation order and a target code rate corresponding to a MCS table of the set of MCS tables based at least in part on a value of the table parameter in the RRC message and the DCI format; and decode the downlink traffic in accordance with the selection of the modulation order and the target code rate.

28. The UE of claim 27, wherein, the first MCS table includes at least one of: a 256-QAM table, or a 64-QAM low spectral efficiency table.

29. The UE of claim 27, wherein, the table parameter includes a single bit.

30. The UE of claim 29, wherein, the one or more processors are further configured to: receive, in the DCI transmission, a physical downlink shared channel resource allocation for the downlink traffic.

31. The UE of claim 30, wherein, the DCI corresponds to a radio network temporary identifier (RNTI), and wherein the selection of the modulation order and the target code rate is not based at least in part on the RNTI.

32. The UE of claim 30, wherein, the DCI corresponds to a radio network temporary identifier (RNTI), and wherein the selection of the modulation order and the target code rate is based at least in part on the RNTI.

33. The UE of claim 27, wherein, the RRC message includes a plurality of table parameters indicating whether the UE is to decode the downlink traffic using a first modulation order and a first target code rate corresponding to the first MCS table, a second modulation order and a second target code rate corresponding to the second MCS table, or at least a third modulation order and at least a third target code rate corresponding to at least a third MCS table.

34. The UE of claim 27, wherein, the one or more processors are further configured to: select the second MCS table based at least in part on a determination that the value of the table parameter corresponds to the second MCS table, the UE is not configured with a MCS cell radio network temporary identifier, and the DCI transmission associated with the downlink traffic includes a DCI 1_2 format with a cyclic redundancy check scrambled by a cell radio network temporary identifier.

35. The UE of claim 27, wherein, the one or more processors are further configured to: selecting the second MCS table based at least in part on a determination that the value for the table parameter corresponds to the second MCS table, the UE is not configured with a MCS cell radio network temporary identifier, and the DCI transmission associated with the downlink traffic includes a DCI format with a cyclic redundancy check scrambled by a cell radio network temporary identifier other than DCI format 1_2.

36. The UE of claim 27, wherein, The one or more processors are further configured to: select the second MCS table based at least in part on a determination that the value for the table parameter corresponds to the second MCS table, the UE is configured with a MCS cell radio network temporary identifier 2 (MCS-C-RNTI2), and the DCI transmission associated with the downlink traffic includes a cyclic redundancy check scrambled by MCS-C-RNTI2.

37. The UE of claim 27, wherein, The one or more processors are further configured to: select the second MCS table based at least in part on a determination that the value for the table parameter corresponds to the second MCS table, the UE is not configured with a semi-persistent scheduling (SPS) dedicated table parameter, and the DCI transmission associated with the downlink traffic includes a DCI format 1_2 with a cyclic redundancy check scrambled by a configured scheduling radio network temporary identifier or SPS is activated by the DCI format 1_2 without a corresponding physical downlink control channel transmission.

38. The UE of claim 27, wherein The one or more processors are further configured to: select the second MCS table based at least in part on a determination that the value for the table parameter corresponds to the second MCS table, the UE is not configured with a semi-persistent scheduling (SPS) dedicated table parameter, and the DCI transmission associated with the downlink traffic includes a DCI format 1_1 with a cyclic redundancy check scrambled by a configured scheduling radio network temporary identifier or SPS is activated by the DCI format 1_1 without a corresponding physical downlink control channel transmission.

39. The UE of claim 27, wherein, The one or more processors are further configured to: transmit a medium access control (MAC) control element (CE) to override the RRC message to enable one or more functions associated with the table parameter.

40. The UE of claim 27, wherein, The one or more processors are further configured to: receive a semi-persistent scheduling configuration including a default MCS parameter set associated with a MCS table, the MCS table corresponding to a lower QAM than a MCS table corresponding to a current MCS parameter set.

41. The UE of claim 40, wherein, The one or more processors are further configured to: determine that a number of negative acknowledgements transmitted within a measurement window satisfies a threshold; and select the default MCS parameter set based at least in part on determining that the number of negative acknowledgements satisfies the threshold.

42. The UE of claim 27, wherein, The one or more processors are further configured to: receive a group configuration indicating an association between a SPS configuration group and a MCS parameter set, wherein the table parameter indicates the SPS configuration group.

43. The UE of claim 42, wherein, The SPS configuration group corresponds to a priority class, and wherein the table parameter indicates the priority class.

44. The UE of claim 27, wherein The one or more processors are further configured to: transmit a channel state information (CSI) report that indicates a recommended MCS table to use in interpreting the CSI report.

45. The UE of claim 44, wherein, The one or more processors are further configured to: receive an indication of one or more MCS tables to use in computing a channel quality indicator based at least in part on the recommended MCS table.

46. A network entity for wireless communication, comprising: one or more memories; and one or more processors coupled to the one or more memories, the one or more processors configured to: transmit, to a user equipment (UE), a radio resource control (RRC) message that includes a table parameter that indicates a modulation and coding scheme (MCS) table from a set of MCS tables and that indicates whether the UE is to decode downlink traffic using a first modulation order and a first target code rate corresponding to a first MCS table from the set of MCS tables or a second modulation order and a second target code rate corresponding to a second MCS table from the set of MCS tables, and wherein the second MCS table corresponds to 1024 quadrature amplitude modulation (QAM), and wherein the MCS table is the first MCS table or the second MCS table; and transmit a downlink control information (DCI) transmission that includes a DCI format; select a modulation order and a target code rate corresponding to a MCS table from the set of MCS tables based at least in part on a value of the table parameter in the RRC message and the DCI format; and transmit the downlink traffic in accordance with the selection of the modulation order and the target code rate.

47. The network entity of claim 46, wherein, The first MCS table includes at least one of: a 256-QAM table, or a 64-QAM low spectral efficiency table.

48. The network entity of claim 46, wherein, The table parameter includes a single bit.

49. The network entity of claim 48, wherein, The one or more processors are further configured to: transmit, in the DCI transmission, a physical downlink shared channel resource allocation for the downlink traffic, wherein the DCI corresponds to a radio network temporary identifier (RNTI), and wherein the selection to use the modulation order and the target code rate is not based at least in part on the RNTI.

50. The network entity of claim 48, wherein, The one or more processors are further configured to: transmit, in the DCI transmission, a physical downlink shared channel resource allocation for the downlink traffic, wherein the DCI corresponds to a radio network temporary identifier (RNTI), and wherein the selection to use the modulation order and the target code rate is based at least in part on the RNTI.

51. The network entity of claim 46, wherein, The one or more processors are further configured to: transmit a semi-persistent scheduling configuration that includes a set of default MCS parameters associated with a MCS table that corresponds to a lower QAM than a MCS table corresponding to a current set of MCS parameters.

52. The network entity of claim 46, wherein, The one or more processors are further configured to: transmitting a group configuration indicating an association between a SPS configuration group and a set of MCS parameters, wherein the table parameter indicates the SPS configuration group.

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