Multi-beam downlink control information

Abstract

In summary, various aspects of this disclosure relate to wireless communication. In some aspects, a user equipment may receive first downlink control information (DCI) on a downlink control channel and a first beam, wherein the first DCI identifies a second DCI carried on a downlink shared channel; and receive multiple repetitions of the second DCI on the downlink shared channel on multiple second beams.

Description

[0001] Cross-references to related applications

[0002] This patent application claims priority to the following applications: U.S. Provisional Patent Application No. 63 / 013,390, filed April 21, 2020, entitled “MULTI-BEAM PIGGYBACK DOWNLINK CONTROL INFORMATION”; and U.S. Non-Provisional Patent Application No. 17 / 233,264, filed April 16, 2021, entitled “MULTI-BEAM PIGGYBACK DOWNLINK CONTROLINFORMATION”, which are expressly incorporated herein by reference. Technical Field

[0003] In summary, various aspects of this disclosure relate to wireless communication, and to techniques and apparatus for multi-beam carrying downlink control information (DCI). 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 enable 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, while an "uplink" (or "backlink") 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) 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 wireless access technologies remain useful. Summary of the Invention

[0007] In some aspects, a method of wireless communication performed by a user equipment may include: receiving first downlink control information (DCI) on a downlink control channel and a first beam, wherein the first DCI identifies a second DCI carried on a downlink shared channel; and receiving multiple repetitions of the second DCI on a plurality of second beams on the downlink shared channel.

[0008] In some aspects, a method of wireless communication performed by a base station may include: transmitting a first DCI on a downlink control channel and a first beam, wherein the first DCI includes scheduling information for a second DCI carried on a downlink shared channel; and transmitting multiple repetitions of the second DCI on a plurality of second beams on the downlink shared channel.

[0009] In some aspects, a user equipment for wireless communication may include: a memory; one or more processors operatively coupled to the memory; and instructions stored in the memory. The instructions in the memory, when executed by the one or more processors, may be operable to cause the user equipment to: receive a first DCI on a downlink control channel and a first beam, wherein the first DCI identifies a second DCI carried on a downlink shared channel; and receive multiple repetitions of the second DCI on a plurality of second beams on the downlink shared channel.

[0010] In some aspects, a base station for wireless communication may include: a memory; one or more processors operatively coupled to the memory; and instructions stored in the memory. The instructions in the memory, when executed by the one or more processors, may be operable to cause the base station to: transmit a first DCI on a downlink control channel and a first beam, wherein the first DCI includes scheduling information for a second DCI carried on a downlink shared channel; and transmit multiple repetitions of the second DCI on multiple second beams on the downlink shared channel.

[0011] In some aspects, a non-transitory computer-readable medium may store one or more instructions for wireless communication, which, when executed by one or more processors of a base station, cause the base station to: receive a first DCI on a downlink control channel and a first beam, wherein the first DCI identifies a second DCI carried on a downlink shared channel; and receive multiple repetitions of the second DCI on a plurality of second beams on the downlink shared channel.

[0012] In some aspects, a non-transitory computer-readable medium may store one or more instructions for wireless communication, which, when executed by one or more processors of a UE, cause the UE to: transmit a first DCI on a downlink control channel and a first beam, wherein the first DCI includes scheduling information for a second DCI carried on a downlink shared channel; and transmit multiple repetitions of the second DCI on a plurality of second beams on the downlink shared channel.

[0013] In some aspects, an apparatus for wireless communication includes: a unit for receiving a first DCI on a downlink control channel and a first beam, wherein the first DCI identifies a second DCI carried on a downlink shared channel; and a plurality of repeating units for receiving the second DCI on a plurality of second beams on the downlink shared channel.

[0014] In some aspects, an apparatus for wireless communication includes: a unit for transmitting a first DCI on a downlink control channel and a first beam, wherein the first DCI includes scheduling information for a second DCI carried on a downlink shared channel; and a plurality of repeating units for transmitting the second DCI on a plurality of second beams on the downlink shared channel.

[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 as illustrated by the drawings.

[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.

[0017] While aspects have been described herein by way of example, those skilled in the art will understand that such aspects can be implemented in many different arrangements and scenarios. The innovations described herein can be implemented using different platform types, devices, systems, shapes, sizes, and / or package arrangements. For example, some aspects can be implemented via integrated chip embodiments and other devices based on non-modular components (e.g., end-user devices, vehicles, communication devices, computing devices, industrial devices, retail / purchasing devices, medical devices, or AI-enabled devices). Aspects can be implemented in chip-level components, modular components, non-modular components, non-chip-level components, device-level components, or system-level components. Devices incorporating the described aspects and features may include additional components and features for the implementation and enforcement of the claimed and described aspects. For example, the transmission and reception of wireless signals may include multiple components for analog and digital purposes (e.g., hardware components including antennas, radio frequency (RF) chains, power amplifiers, modulators, buffers, processors, interleavers, adders, or summers). The innovations described herein are intended to be implemented in a variety of devices, chip-level components, systems, distributed arrangements, or end-user devices with different sizes, shapes, and configurations. Attached Figure Description

[0018] 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.

[0019] Figure 1 This is a diagram illustrating an example of a wireless network according to this disclosure.

[0020] Figure 2 This is a diagram illustrating an example of communication between a base station and a UE in a wireless network according to this disclosure.

[0021] Figure 3 This is a diagram illustrating an example of a DCI-equipped type according to this disclosure.

[0022] Figure 4-6 This is a diagram illustrating an example of multi-beam transmission equipped with DCI according to this disclosure.

[0023] Figure 7 This is a diagram illustrating an example process performed by a user device, for example, in accordance with this disclosure.

[0024] Figure 8 This is a diagram illustrating an example process performed by a base station, for example, according to this disclosure. Detailed Implementation

[0025] In some cases, the Physical Downlink Shared Channel (PDSCH) carrying downlink control information (DCI) can be transmitted on a beam, while the corresponding Physical Downlink Control Channel (PDCCH) can be transmitted on a wider beam (such as a pseudo-omnidirectional beam). A pseudo-omnidirectional beam is a beam associated with a wide beamwidth to cover a wider coverage area than beams typically used for data communication in millimeter-wave networks, and narrower than a fully omnidirectional transmit beam. In such cases, the PDCCH can have low beamforming gain, wider coverage, and a low modulation and coding scheme (MCS) (resulting in higher reliability relative to the PDSCH), while the PDSCH can have high beamforming gain, narrower coverage, and a higher MCS (resulting in lower reliability relative to the PDCCH, while providing higher throughput). The lower reliability associated with beamforming PDSCH transmission may lead to unsuccessful decoding of DCI-carrying devices (described below) and / or missed DCI-carrying devices, which may require network resources to detect missed DCIs or failed decoding of DCI-carrying devices, as well as retransmission of DCI-carrying devices. Some of the techniques and apparatus described herein provide the use of multiple beams to transmit DCI-carrying data. For example, DCI-carrying data can be carried by transmitting multiple times on corresponding transmit beams using PDSCH transmission. DCI-carrying data may include scheduling information for one or more PDSCHs other than the PDSCH carrying DCI, and / or may carry scheduling information for the PDSCH carrying DCI. In some aspects, DCI-carrying data may include beam configuration for one or more transmit beams of the PDSCH. Therefore, the reliability of DCI-carrying data is improved, and the utilization of network resources is increased.

[0026] 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.

[0027] 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.

[0028] 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).

[0029] Figure 1 This 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 BS 110a, BS 110b, BS 110c, and BS 110d) and other network entities. A base station (BS) is an entity that communicates with a user equipment (UE) and may also be referred to as an NR BS, Node B, gNB, 5G Node B (NB), access point, Transmit / Receive Point (TRP), etc. Each BS 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.

[0030] 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 1In the examples shown, BS 110a can be a macro BS for macro cell 102a, BS 110b can be a pico BS for pico cell 102b, and BS 110c can be a femto BS for femto cell 102c. A BS can support one or more (e.g., three) cells. The terms “eNB,” “base station,” “NR BS,” “gNB,” “TRP,” “AP,” “Node B,” “5G NB,” and “cell” are used interchangeably herein.

[0031] 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).

[0032] 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 transmit 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 BS 110d can communicate with macro BS 110a and UE 120d to facilitate communication between BS 110a and UE 120d. A relay BS can also be referred to as a relay station, relay base station, repeater, etc.

[0033] 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).

[0034] 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 directly or indirectly via wireless or wired backhaul.

[0035] 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, etc.)), entertainment device (e.g., music or video device, or satellite radio unit, etc.), 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.

[0036] 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.

[0037] Typically, any number of wireless networks can be deployed in a given geographic area. Each wireless network can support a specific RAT and can operate on one or more frequencies. 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 geographic area to avoid interference between wireless networks using different RATs. In some cases, NR or 5G RAT networks can be deployed. NR or 5G RAT networks can use beamforming for communication between two or more entities, which can improve the beamforming gain of communication, but at the cost of narrower coverage and lower reliability relative to wide-beam transmission. The techniques and apparatus described in this paper provide multi-beam transmission of DCI on a PDSCH.

[0038] In some examples, access to an air interface can be scheduled, where a scheduling entity (e.g., a base station) allocates resources for communication among some or all devices and apparatuses within the scheduling entity's service area or cell. Within this disclosure, as further discussed below, the scheduling entity may be responsible for scheduling, allocating, reconfiguring, and releasing resources for one or more subordinate entities. That is, for scheduled communication, the subordinate entities utilize the resources allocated by the scheduling entity.

[0039] A base station is not the only entity that can be used as a scheduling entity. That is, in some examples, a UE can act as a scheduling entity, scheduling resources for one or more subordinate entities (e.g., one or more other UEs). In this example, the UE is acting as a scheduling entity, while other UEs utilize the resources scheduled by that UE for wireless communication. A UE can act as a scheduling entity in peer-to-peer (P2P) networks and / or mesh networks. In the mesh network example, in addition to communicating with a scheduling entity, UEs can optionally communicate directly with each other.

[0040] Therefore, in a wireless communication network with scheduled access to time-frequency resources and with cellular, P2P, and mesh configurations, the scheduling entity and one or more subordinate entities can use the scheduled resources to communicate.

[0041] 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 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, etc.) and / or mesh networks. In this case, UE 120 may perform scheduling operations, resource selection operations, and / or other operations described herein as being performed by base station 110.

[0042] Devices of the wireless network 100 may communicate using the electromagnetic spectrum, which may be subdivided into various categories, bands, channels, etc., based on frequency or wavelength. For example, devices of the wireless network 100 may communicate using an operating band with a first frequency range (FR1) (spanning from 410 MHz to 7.125 GHz), and / or may 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 frequencies (IFs). 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) identified as the “millimeter wave” band by the International Telecommunication Union (ITU). Therefore, unless explicitly stated otherwise, it should be understood that the terms “below 6 GHz” etc. (if used herein) can broadly refer to frequencies less than 6 GHz, frequencies within FR1, and / or intermediate 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 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.

[0043] 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.

[0044] Figure 2This is a diagram illustrating an example 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.

[0045] At base station 110, transmit processor 220 can receive data for one or more UEs from data source 212, select one or more MCSs for each UE based at least in part on Channel Quality Indicators (CQIs) received from each UE, process (e.g., encode and modulate) the data for each UE based at least in part on the MCSs selected for each UE, and provide data symbols for all UEs. Transmit processor 220 can also process system information (e.g., semi-static resource partitioning information (SRPI)) and control information (e.g., CQI requests, grants, and / or upper-layer signaling), and provide overhead symbols and control symbols. Transmit processor 220 can also generate reference symbols for reference signals (e.g., 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.

[0046] 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 Reference Signal Received Power (RSRP) parameters, Received Signal Strength Indicator (RSSI) parameters, Reference Signal Received Quality (RSRQ) parameters, and / or CQI parameters, as well as other examples. In some aspects, one or more components of the UE 120 may be included in a housing.

[0047] 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.

[0048] 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).

[0049] 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 3-8 (Described).

[0050] 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 3-8 (Described).

[0051] The controller / processor 240 of base station 110, the controller / processor 280 of UE 120 and / or Figure 2 Any other components may perform one or more associated technologies, 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 7 Process 700 Figure 8 The operation of process 800 and / or other processes as described herein. Memory 242 and 282 may store data and program code for base station 110 and UE 120, respectively.

[0052] The stored program code, when executed by processor 280 and / or other processors and modules at UE 120, can cause UE 120 to perform actions related to... Figure 7 The process 700 and / or other operations described herein. The stored program code, when executed by processor 240 and / or other processors and modules at base station 110, can cause base station 110 to perform operations related to... Figure 8 The process 800 and / or other operations described herein. Scheduler 246 can schedule the UE for data transmission on the downlink and / or uplink.

[0053] In some aspects, UE 120 may include: a unit for receiving first downlink control information (DCI) on a downlink control channel and a first beam, wherein the first DCI identifies a second DCI carried on a downlink shared channel; multiple repeating units for receiving the second DCI on multiple second beams on the downlink shared channel; and so on. In some aspects, such a unit may include a combination of Figure 2 One or more components of the UE 120 described.

[0054] In some aspects, base station 110 may include: a unit for transmitting a first DCI on a downlink control channel and a first beam, wherein the first DCI includes scheduling information for a second DCI carried on a downlink shared channel; multiple repeating units for transmitting the second DCI on multiple second beams on the downlink shared channel; and so on. In some aspects, such a unit may include a combination of Figure 2 One or more components of the described base station 110.

[0055] Although Figure 2The 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 or under the control of controller / processor 280.

[0056] 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.

[0057] Traditionally, DCIs are transmitted to the UE on the PDCCH within the control resource set (CORESET). This may involve blind decoding, as the UE is given all the information required to decode the PDCCH (e.g., resource allocation, aggregation level, etc.) and can use this information to decode based on multiple blind decoding assumptions until a PDCCH for the UE is found. In some cases, a DCI or a portion of a DCI may be transmitted on the PDSCH. A DCI or a portion of a DCI transmitted on the PDSCH is called a carried or carried DCI. The UE may know, at least in part, the information used to decode the carried DCI (such as resource allocation for the carried DCI) based on another DCI, which may have been provided prior to the carried DCI. Therefore, carried DCIs do not require blind decoding, higher MCS levels can be used for carried DCIs, and larger payloads and / or more DCIs can be transmitted within a given resource set.

[0058] In some cases, PDSCH can be transmitted on a beam. For example, a narrower beam than PDCCH can be used to transmit PDSCH. Therefore, PDCCH can have low beamforming gain, wider coverage, and low MCS (resulting in high reliability), while PDSCH can have high beamforming gain, narrower coverage, and a higher MCS (resulting in low reliability). The lower reliability associated with beamformed PDSCH transmission may lead to unsuccessful decoding of carried DCIs and / or missed carried DCIs, which may require the use of network resources to retransmit the carried DCIs.

[0059] Some of the techniques and apparatus described herein provide for transmitting DCIs using multiple beams. For example, DCIs can be transmitted multiple times on corresponding multiple transmit beams using PDSCH transmission. A DCI may include scheduling information for one or more PDSCHs other than the PDSCH carrying the DCI, and / or may carry scheduling information for the PDSCH carrying the DCI. In some aspects, a DCI may include beam configuration for one or more transmit beams of the PDSCH. Therefore, the reliability of DCIs is improved, and the utilization of network resources is increased.

[0060] Figure 3 This is a diagram illustrating an example 300 of a DCI-carrying type according to the present disclosure. As shown, example 300 illustrates type 1 and type 2 DCI-carrying. In type 1, a first portion of the DCI (e.g., a first DCI message) is provided on the PDCCH, indicated by reference numeral 310. The first portion of the DCI may include information for decoding a PDSCH carrying one or more DCI-carrying components. For example, in type 1, the first portion of the DCI may include all scheduling information for the PDSCH (as indicated by the arrow from the first portion of the DCI to the PDSCH) and all scheduling information for a second portion of the DCI in the PDSCH (as indicated by the arrow from the first portion of the DCI to the second portion of the DCI). The second portion of the DCI may include all scheduling information for subsequent PDSCHs. Here, one or more DCI-carrying components are indicated by reference numeral 320 and referred to as the second portion of the DCI. For example, one or more DCI-carrying components may include a corresponding DCI carrying information for decoding subsequent PDSCHs (e.g., scheduling information, etc.), as indicated by reference numeral 330. Typically, the arrow from DCI to the corresponding PDSCH indicates that DCI carries scheduling information for PDSCH.

[0061] In Type 2, a first portion of the DCI, indicated by reference numeral 340, is provided on the PDCCH. The first portion of the DCI can identify a second portion of the DCI, indicated by reference numeral 350. Both the first and second portions of the DCI can jointly carry information for decoding the PDSCH, as shown by reference numeral 360. In Type 2, the first portion of the DCI may include a portion of scheduling information for the PDSCH (indicated by the arrow from the first portion of the DCI to the PDSCH) and all scheduling information for the second portion of the DCI within the PDSCH (indicated by the arrow from the first portion of the DCI to the second portion of the DCI). The second portion of the DCI may include a portion of scheduling information for the PDSCH, indicated by the arrow from the second portion of the DCI to the PDSCH. In some aspects, beamforming can be used to transmit the PDSCH and therefore the second portion of the DCI, resulting in lower reliability compared to pseudo-omnidirectional transmission of the PDSCH. Some techniques and apparatuses described herein provide multi-beam transmission of the second portion of the DCI, such as combining... Figure 4-6 A more detailed description.

[0062] 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.

[0063] Figure 4 This is a figure illustrating Example 400 of a multi-beam transmission equipped with DCI according to this disclosure. Example 400, Figure 5 Example 500 and Figure 6 Example 600 illustrates communication from a base station (such as BS 110). Figure 4 Three PDSCHs are shown: PDSCH 1, PDSCH 2, and PDSCH 3. PDSCHs are indicated by thick borders. Each of the three PDSCHs is shown as comprising three time slots (although a PDSCH may include any number of time slots). The first part of the DCI is indicated by reference numeral 410. The first part of the DCI may include scheduling information for the second part of the DCI, indicated by reference numeral 420. For clarity of the drawing, the arrow from the first part of the DCI to the second part of the DCI (which elsewhere in this text indicates scheduling the second part of the DCI by the first part) is omitted here. As shown, the second part of the DCI is repeated a total of three times in different time slots of PDSCH 1; this can be referred to as inter-slot repetition. As further shown, the second part of the DCI may include scheduling information for PDSCH 2 (indicated by reference numeral 430) and PDSCH 3 (indicated by reference numeral 440). For example, the same data (e.g., the same DCI) may be repeated three times across time slots.

[0064] As shown by reference numeral 450, a wide beam (indicated by a circle) can be used to transmit the PDCCH, and as shown by reference numeral 460, the second part of the DCI can be transmitted using a corresponding beam (indicated by an ellipse). For example, three different beams can be used to transmit three repetitions of the second part of the DCI, as shown in Example 400 where the beams point in different directions. Furthermore, the second part of the DCI can include beam configurations for the three beams used to transmit the corresponding PDSCH. For example, the DCI scheduling PDSCH 2 can carry three beam configurations for the three beams used to transmit PDSCH 2. In some aspects, the beam configuration can include Transmission Configuration Indicator (TCI) status, quasi-co-location information, beam identifiers, synchronization signal block indexes, channel state information reference signal identifiers, etc. By transmitting repetitions of the DCI via different beams, the reliability of the DCI is improved, while simultaneously achieving the improved propagation characteristics and data rates achievable using beamforming communication.

[0065] As pointed out above, Figure 4 This is provided as an example. Other examples may differ from the one provided. Figure 4 The example described.

[0066] Figure 5 This is a diagram illustrating example 500 of multi-beam transmission carrying a DCI according to the present disclosure. Example 500 illustrates communication of a base station (such as BS 110). As in example 400, a first portion of the DCI transmitted via the PDCCH is scheduled as a second portion of the DCI in PDSCH 1. In example 500, each repetition of the DCI carries a beam configuration for the corresponding portion of the PDSCH. For example, three repetitions of the second portion of the DCI scheduled for PDSCH 2 may each carry a corresponding beam configuration for a different portion of PDSCH 2, as indicated by arrows from the repetitions of the second portion of the DCI to the corresponding portions of PDSCH 2 as indicated by reference numerals 510, 520, and 530. In some aspects, in addition to the beam configuration, the scheduling information of the second portion of the DCI may be repeated in each repetition of the second portion of the DCI. As described above, the beam configuration may include TCI status, quasi-co-location information, beam identifier, synchronization signal block index, channel state information reference signal identifier, etc. By transmitting DCI-equipped repeats via different beams, the reliability of DCI-equipped data is improved, while the improved propagation characteristics and data rates achievable with beamforming communication are realized.

[0067] As pointed out above, Figure 5 This is provided as an example. Other examples may differ from the one provided. Figure 5 The example described.

[0068] Figure 6This is a figure illustrating Example 600 of a multi-beam transmission carrying a DCI according to the present disclosure. Example 600 is an example of time-slot repetition for a Type 2 DCI. Example 600 illustrates a first portion of the DCI transmitted via a PDCCH. In Example 600, the first portion of the DCI includes scheduling information for the PDSCH (indicated by the arrow shown by reference numeral 610) and for a second portion of the DCI (indicated by the arrow shown by reference numeral 620). As indicated by the arrow shown by reference numeral 630, the second portion of the DCI may carry scheduling information for the PDSCH. For example, each repetition of the second portion of the DCI may carry the beam configuration for the corresponding portion of the PDSCH, and each repetition of the second portion may carry scheduling information for the PDSCH. As further shown, three repetitions of the DCI (and three portions of the PDSCH) can be transmitted using different beams.

[0069] In some aspects, DCIs carried on a PDSCH can be repeatedly transmitted via multiple beams using the PDSCH. For example, the same data and DCI can be transmitted N times using N different transmit beams. In some aspects, repetition is performed within a time slot. In some aspects, repetition is performed across time slots. In some aspects, the DCI may include scheduling information for other PDSCHs (e.g., type 1 DCI) or scheduling information for a PDSCH on which the DCI is transmitted (e.g., type 2 DCI). In some aspects, the DCI includes scheduling information for another PDSCH (e.g., type 1 DCI). In some aspects, the DCI includes scheduling information for a PDSCH on which the DCI is transmitted (e.g., type 2 DCI). In some aspects, the DCI may include transmit beam information (e.g., TCI) for the PDSCH. In some aspects, each DCI includes a TCI for a PDSCH (or a portion of a PDSCH). In some respects, each DCI includes multiple TCIs for a PDSCH (or multiple parts of a PDSCH).

[0070] As pointed out above, Figure 6 This is provided as an example. Other examples may differ from the one provided. Figure 6 The example described.

[0071] Figure 7 This is a diagram illustrating an example process 700 performed by a UE, for example, according to this disclosure. Example process 700 is an example in which a UE (e.g., UE 120, etc.) performs operations associated with receiving multi-beam DCI.

[0072] like Figure 7As shown, in some aspects, process 700 may include: receiving a first DCI on a downlink control channel and a first beam, wherein the first DCI identifies a second DCI carried on a downlink shared channel (block 710). For example, a UE (e.g., using antenna 252, DEMOD 254, MIMO detector 256, receive processor 258, controller / processor 280, etc.) may receive the first DCI on the downlink control channel and the first beam, as described above. In some aspects, the first DCI identifies a second DCI carried on a downlink shared channel. In some aspects, the first DCI is referred to herein as a first portion of the DCI.

[0073] like Figure 7 Further, in some aspects, process 700 may include receiving multiple repetitions of the second DCI on a downlink shared channel across multiple second beams (block 720). For example, the UE (e.g., using antenna 252, DEMOD 254, MIMO detector 256, receive processor 258, controller / processor 280, etc.) may receive multiple repetitions of the second DCI on a downlink shared channel across multiple second beams, as described above. In some aspects, the second DCI is referred to herein as a second portion of the DCI.

[0074] Process 700 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.

[0075] In the first aspect, multiple repetitions are received within a single time slot.

[0076] In the second aspect, either alone or in combination with the first aspect, multiple repetitions are received in two or more different time slots.

[0077] In the third aspect, either alone or in combination with one or more of the first and second aspects, the second DCI includes scheduling information for one or more shared channels following the downlink shared channel, and wherein process 700 further includes decoding the one or more shared channels.

[0078] In the fourth aspect, either alone or in combination with one or more of the first to third aspects, the second DCI includes scheduling information for the downlink shared channel, and process 700 further includes decoding the downlink shared channel.

[0079] In the fifth aspect, either alone or in combination with one or more of the first to fourth aspects, the multiple repetitions of the second DCI indicate the corresponding beam configuration for the shared channel or one or more portions of the shared channel, and the process 700 further includes: using the corresponding beam configuration to receive the shared channel or one or more portions of the shared channel.

[0080] In the sixth aspect, either alone or in combination with one or more of the first to fifth aspects, the corresponding beam configuration includes the corresponding transmission configuration indicator state.

[0081] In the seventh aspect, either alone or in combination with one or more of the first to sixth aspects, two or more repetitions of the second DCI carry the same set of beam configurations for sharing a channel or two or more portions of a shared channel.

[0082] In the eighth aspect, either alone or in combination with one or more of the first to seventh aspects, the beam configuration set includes the corresponding transmission configuration indicator state.

[0083] In the ninth aspect, either alone or in combination with one or more aspects from the first to the eighth aspects, each of the multiple repetitions of the second DCI carries multiple transmission configuration indicator states for sharing the channel or a portion thereof.

[0084] In the tenth aspect, either alone or in combination with one or more aspects from the first to the ninth aspect, the plurality of second beams differ from each other with respect to at least one beam parameter (e.g., spatial parameters, such as transmission direction, quasi-co-location parameter, etc.).

[0085] Although Figure 7 An example box of process 700 is shown, but in some aspects, process 700 may include... Figure 7 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 700 may be executed in parallel.

[0086] Figure 8 This is a diagram illustrating an example process 800 performed by a base station, for example, according to this disclosure. Example process 800 is an example in which a base station (e.g., BS 110, etc.) performs operations associated with a multi-beam DCI.

[0087] like Figure 8As shown, in some aspects, process 800 may include: transmitting a first DCI on a downlink control channel and a first beam, wherein the first DCI includes scheduling information for a second DCI carried on a downlink shared channel (block 810). For example, a base station (e.g., using controller / processor 240, transmit processor 220, TX MIMO processor 230, MOD 232, antenna 234, etc.) may transmit the first DCI on the downlink control channel and the first beam, as described above. In some aspects, the first DCI includes scheduling information for a second DCI carried on a downlink shared channel.

[0088] like Figure 8 As further shown, in some aspects, process 800 may include transmitting multiple repetitions of the second DCI on a downlink shared channel on multiple second beams (block 820). For example, a base station (e.g., using controller / processor 240, transmit processor 220, TX MIMO processor 230, MOD 232, antenna 234, etc.) may transmit multiple repetitions of the second DCI on a downlink shared channel on multiple second beams, as described above.

[0089] Process 800 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.

[0090] In the first aspect, multiple repetitions are sent within a single time slot.

[0091] In the second aspect, either alone or in combination with the first aspect, multiple repetitions are sent in two or more different time slots.

[0092] In the third aspect, either alone or in combination with one or more of the first and second aspects, the second DCI includes scheduling information for one or more shared channels following the downlink shared channel, and process 700 further includes: transmitting one or more shared channels.

[0093] In the fourth aspect, either alone or in combination with one or more of the first to third aspects, the second DCI includes scheduling information for the downlink shared channel, and process 700 further includes: transmitting the downlink shared channel.

[0094] In the fifth aspect, either alone or in combination with one or more of the first to fourth aspects, the multiple repetitions of the second DCI indicate the corresponding beam configuration for the shared channel or one or more portions of the shared channel, and the process 700 further includes: using the corresponding beam configuration to transmit the shared channel or one or more portions of the shared channel.

[0095] In the sixth aspect, either alone or in combination with one or more of the first to fifth aspects, the corresponding beam configuration includes the corresponding transmission configuration indicator state.

[0096] In the seventh aspect, either alone or in combination with one or more of the first to sixth aspects, two or more repetitions of the second DCI carry the same set of beam configurations for sharing a channel or two or more portions of a shared channel.

[0097] In the eighth aspect, either alone or in combination with one or more of the first to seventh aspects, the beam configuration set includes the corresponding transmission configuration indicator state.

[0098] In the ninth aspect, either alone or in combination with one or more aspects from the first to the eighth aspects, each of the multiple repetitions of the second DCI carries multiple transmission configuration indicator states for sharing the channel or a portion thereof.

[0099] In the tenth aspect, either alone or in combination with one or more aspects from the first to the ninth aspect, the plurality of second beams are different from each other with respect to at least one beam parameter.

[0100] Although Figure 8 An example box of process 800 is shown, but in some aspects, process 800 may include... Figure 8 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 800 may be executed in parallel.

[0101] The following provides a summary of some aspects of this disclosure:

[0102] Aspect 1: A method of wireless communication performed by a user equipment (UE), comprising: receiving first downlink control information (DCI) on a downlink control channel and a first beam, wherein the first DCI identifies a second DCI carried on a downlink shared channel; and receiving multiple repetitions of the second DCI on the downlink shared channel on multiple second beams.

[0103] Aspect 2: According to the method of aspect 1, wherein the plurality of repetitions are received within a single time slot.

[0104] Aspect 3: According to the method of aspect 1, wherein the plurality of repetitions are received in two or more different time slots.

[0105] Aspect 4: The method according to any one of Aspects 1-3, wherein the second DCI includes scheduling information for one or more shared channels following the downlink shared channel, and wherein the method further includes: decoding the one or more shared channels.

[0106] Aspect 5: The method according to any one of Aspects 1-4, wherein the second DCI includes scheduling information for the downlink shared channel, and wherein the method further includes: decoding the downlink shared channel.

[0107] Aspect 6: The method according to any one of Aspects 1-5, wherein the plurality of repetitions of the second DCI indicate a corresponding beam configuration for a shared channel or one or more portions of the shared channel, and wherein the method further comprises: using the corresponding beam configuration to receive the shared channel or one or more portions of the shared channel.

[0108] Aspect 7: According to the method of aspect 6, wherein the corresponding beam configuration includes the corresponding transmission configuration indicator state.

[0109] Aspect 8: The method according to any one of Aspects 1-7, wherein two or more of the plurality of repetitions of the second DCI carry the same set of beam configurations for sharing a channel or two or more portions of the shared channel.

[0110] Aspect 9: According to the method of aspect 8, wherein the beam configuration set includes corresponding transmission configuration indicator states.

[0111] Aspect 10: The method according to any one of Aspects 1-9, wherein each of the plurality of repetitions of the second DCI carries a plurality of transmission configuration indicator states for sharing a channel or a portion thereof.

[0112] Aspect 11: The method according to any one of aspects 1-10, wherein the plurality of second beams are different from each other with respect to at least one beam parameter.

[0113] Aspect 12: A method of wireless communication performed by a base station, comprising: transmitting first downlink control information (DCI) on a downlink control channel and a first beam, wherein the first DCI includes scheduling information for a second DCI carried on a downlink shared channel; and transmitting multiple repetitions of the second DCI on a plurality of second beams on the downlink shared channel.

[0114] Aspect 13: According to the method of aspect 12, wherein the plurality of repetitions are sent within a single time slot.

[0115] Aspect 14: The method according to aspect 12, wherein the plurality of repetitions are sent in two or more different time slots.

[0116] Aspect 15: The method according to any one of Aspects 12-14, wherein the second DCI includes scheduling information for one or more shared channels following the downlink shared channel, and wherein the method further includes: transmitting the one or more shared channels.

[0117] Aspect 16: The method according to any one of Aspects 12-15, wherein the second DCI includes scheduling information for the downlink shared channel, and wherein the method further includes: transmitting the downlink shared channel.

[0118] Aspect 17: The method according to any one of Aspects 12-16, wherein the plurality of repetitions of the second DCI indicate a corresponding beam configuration for a shared channel or one or more portions of the shared channel, and wherein the method further comprises: using the corresponding beam configuration to transmit the shared channel or one or more portions of the shared channel.

[0119] Aspect 18: According to the method of aspect 17, wherein the corresponding beam configuration includes a corresponding transmission configuration indicator state.

[0120] Aspect 19: The method according to any one of Aspects 12-18, wherein two or more of the plurality of repetitions of the second DCI carry the same set of beam configurations for sharing a channel or two or more portions of the shared channel.

[0121] Aspect 20: According to the method of aspect 19, wherein the beam configuration set includes corresponding transmission configuration indicator states.

[0122] Aspect 21: The method according to any one of aspects 12-20, wherein each of the plurality of repetitions of the second DCI carries a plurality of transmission configuration indicator states for sharing a channel or a portion thereof.

[0123] Aspect 22: The method according to any one of aspects 12-21, wherein the plurality of second beams are different from each other with respect to at least one beam parameter.

[0124] Aspect 30: The method according to aspect 28, wherein the plurality of repetitions occur in two or more different time slots.

[0125] Aspect 31: 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 1-30.

[0126] Aspect 32: 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 of aspects 1-30.

[0127] Aspect 33: An apparatus for wireless communication, comprising at least one unit for performing the method according to one or more of aspects 1-30.

[0128] Aspect 34: 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 1-30.

[0129] Aspect 35: 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 1-30.

[0130] 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.

[0131] 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.

[0132] 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.

[0133] 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 specifically disclosed in the specification. While each dependent claim listed below may directly depend on only one claim, the disclosure of an 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).

[0134] 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 are interchangeable 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 is interchangeable 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 are interchangeable 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 for wireless communication performed by a user equipment (UE), comprising: Receive first downlink control information (DCI) on the downlink control channel and the first beam, wherein the first DCI identifies a second DCI carried on the downlink shared channel; and Multiple repetitions of the second DCI are received on the downlink shared channel on multiple second beams. In this case, two or more of the multiple repetitions of the second DCI carry the same set of beam configurations for sharing a channel or two or more portions of the shared channel.

2. The method according to claim 1, wherein, The multiple repetitions are received within a single time slot.

3. The method according to claim 1, wherein, The multiple repetitions are received in two or more different time slots.

4. The method according to claim 1, wherein, The second DCI includes scheduling information for one or more shared channels following the downlink shared channel, and the method further includes decoding the one or more shared channels.

5. The method according to claim 1, wherein, The second DCI includes scheduling information for the downlink shared channel, and the method further includes decoding the downlink shared channel.

6. The method according to claim 1, wherein, At least one of the plurality of repetitions of the second DCI indicates a corresponding beam configuration for one or more portions of the shared channel, and wherein the method further comprises: using the corresponding beam configuration to receive the shared channel or the one or more portions of the shared channel.

7. The method according to claim 6, wherein, The corresponding beam configuration includes the corresponding transmission configuration indicator status.

8. The method according to claim 1, wherein, The beam configuration set includes the corresponding transmission configuration indicator status.

9. The method according to claim 1, wherein, At least one of the multiple repetitions of the second DCI carries multiple transmission configuration indicator states for a portion of the shared channel.

10. The method according to claim 1, wherein, The plurality of second beams are different from each other with respect to at least one beam parameter.

11. A method for wireless communication performed by a base station, comprising: Transmitting first downlink control information (DCI) on the downlink control channel and the first beam, wherein the first DCI includes scheduling information for carrying a second DCI on the downlink shared channel; and Multiple repetitions of the second DCI are transmitted on the downlink shared channel on multiple second beams. In this case, two or more of the multiple repetitions of the second DCI carry the same set of beam configurations for sharing a channel or two or more portions of the shared channel.

12. The method according to claim 11, wherein, The multiple repetitions are sent within a single time slot.

13. The method according to claim 11, wherein, The multiple repetitions are sent in two or more different time slots.

14. The method according to claim 11, wherein, The second DCI includes scheduling information for one or more shared channels following the downlink shared channel, and the method further includes: transmitting the one or more shared channels.

15. The method according to claim 11, wherein, The second DCI includes scheduling information for the downlink shared channel, and the method further includes: transmitting the downlink shared channel.

16. The method according to claim 11, wherein, At least one of the plurality of repetitions of the second DCI indicates a corresponding beam configuration for one or more portions of the shared channel, and wherein the method further includes: using the corresponding beam configuration to transmit the shared channel or the one or more portions of the shared channel.

17. The method according to claim 16, wherein, The corresponding beam configuration includes the corresponding transmission configuration indicator status.

18. The method according to claim 11, wherein, The beam configuration set includes the corresponding transmission configuration indicator status.

19. The method according to claim 11, wherein, At least one of the multiple repetitions of the second DCI carries multiple transmission configuration indicator states for a portion of the shared channel.

20. The method according to claim 11, wherein, The plurality of second beams are different from each other with respect to at least one beam parameter.

21. A user equipment (UE) for wireless communication, comprising: Memory; as well as One or more processors coupled to the memory; as well as Instructions, which are stored in the memory and operable when executed by the one or more processors, to cause the UE to perform the following operations: Receive first downlink control information (DCI) on the downlink control channel and the first beam, wherein the first DCI identifies a second DCI carried on the downlink shared channel; and Multiple repetitions of the second DCI are received on the downlink shared channel on multiple second beams. In this case, two or more of the multiple repetitions of the second DCI carry the same set of beam configurations for sharing a channel or two or more portions of the shared channel.

22. The UE according to claim 21, wherein, The multiple repetitions occur within a single time slot.

23. The UE according to claim 21, wherein, The multiple repetitions occur in two or more different time slots.

24. The UE according to claim 21, wherein, The second DCI includes scheduling information for one or more shared channels following the downlink shared channel, and wherein the one or more processors are configured to decode the one or more shared channels.

25. The UE according to claim 21, wherein, The second DCI includes scheduling information for the downlink shared channel, and wherein the one or more processors are configured to decode the downlink shared channel.

26. A base station for wireless communication, comprising: Memory; as well as One or more processors coupled to the memory; as well as Instructions, which are stored in the memory and operable when executed by the one or more processors, to cause the base station to perform the following operations: Transmitting first downlink control information (DCI) on the downlink control channel and the first beam, wherein the first DCI includes scheduling information for carrying a second DCI on the downlink shared channel; and Multiple repetitions of the second DCI are transmitted on the downlink shared channel on multiple second beams, wherein two or more of the multiple repetitions of the second DCI carry the same set of beam configurations for the shared channel or two or more portions of the shared channel.

27. The base station according to claim 26, wherein, The multiple repetitions occur within a single time slot.

28. The base station according to claim 26, wherein, The multiple repetitions occur in two or more different time slots.

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