WO2022021061A1

WO2022021061A1 - Downlink control information signaling with a resource repetition factor

Info

Publication number: WO2022021061A1
Application number: PCT/CN2020/105167
Authority: WO
Inventors: Bo Chen; Lei Shen; MingKai Nan; Hao Xu
Original assignee: Qualcomm Incorporated
Priority date: 2020-07-28
Filing date: 2020-07-28
Publication date: 2022-02-03

Abstract

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive downlink control information (DCI) indicating a resource for an uplink shared channel, wherein the DCI indicates a number of repetitions associated with the resource for the uplink shared channel. The UE may perform a set of uplink transmissions in a number of consecutive slots indicated by the number of repetitions. Numerous other aspects are provided.

Description

DOWNLINK CONTROL INFORMATION SIGNALING WITH A RESOURCE REPETITION FACTOR

FIELD OF THE DISCLOSURE

Aspects of the present disclosure generally relate to wireless communication and to techniques and apparatuses for downlink control information signaling with a resource repetition factor.

BACKGROUND

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

A wireless network may include a number of base stations (BSs) that can support communication for a number of user equipment (UEs) . A user equipment (UE) may communicate with a base station (BS) via the downlink and uplink. The downlink (or forward link) refers to the communication link from the BS to the UE, and the uplink (or reverse link) refers to the communication link from the UE to the BS. As will be described in more detail herein, a BS may be referred to as a Node B, a gNB, an access point (AP) , a radio head, a transmit receive point (TRP) , a New Radio (NR) BS, a 5G Node B, and/or the like.

The above multiple access technologies have been adopted in various telecommunication standards to provide a common protocol that enables different user equipment to communicate on a municipal, national, regional, and even global level. New Radio (NR) , which may also be referred to as 5G, is a set of enhancements to the LTE mobile standard promulgated by the Third Generation Partnership Project (3GPP) . NR is designed to better support mobile broadband Internet access by improving spectral efficiency, lowering costs, improving services, making use of new spectrum, and better integrating with other open standards using orthogonal frequency division multiplexing (OFDM) with a cyclic prefix (CP) (CP-OFDM) on the downlink (DL) , using CP-OFDM and/or SC-FDM (e.g., also known as discrete Fourier transform spread OFDM (DFT-s-OFDM) ) on the uplink (UL) , as well as supporting beamforming, multiple-input multiple-output (MIMO) antenna technology, and carrier aggregation. As the demand for mobile broadband access continues to increase, further improvements in LTE, NR, and other radio access technologies remain useful.

SUMMARY

In some aspects, a method of wireless communication performed by a user equipment (UE) includes: receiving downlink control information (DCI) indicating a resource for an uplink shared channel, wherein the DCI indicates a number of repetitions associated with the resource for the uplink shared channel; and performing a set of uplink transmissions in a number of consecutive slots indicated by the number of repetitions.

In some aspects, a method of wireless communication performed by a base station includes: transmitting, to a user equipment (UE) , downlink control information (DCI) indicating a resource for an uplink shared channel, wherein the DCI indicates a number of repetitions associated with the resource for the uplink shared channel; and receiving, from the UE, a set of uplink transmissions in a number of consecutive slots indicated by the number of repetitions.

In some aspects, a user equipment (UE) for wireless communication includes: a memory; and one or more processors operatively coupled to the memory, the memory and the one or more processors configured to: receive downlink control information (DCI) indicating a resource for an uplink shared channel, wherein the DCI indicates a number of repetitions associated with the resource for the uplink shared channel; and perform a set of uplink transmissions in a number of consecutive slots indicated by the number of repetitions.

In some aspects, a base station for wireless communication includes: a memory; and one or more processors operatively coupled to the memory, the memory and the one or more processors configured to: transmit, to a user equipment (UE) , downlink control information (DCI) indicating a resource for an uplink shared channel, wherein the DCI indicates a number of repetitions associated with the resource for the uplink shared channel; and receive, from the UE, a set of uplink transmissions in a number of consecutive slots indicated by the number of repetitions.

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 user equipment (UE) , cause the UE to: receive downlink control information (DCI) indicating a resource for an uplink shared channel, wherein the DCI indicates a number of repetitions associated with the resource for the uplink shared channel; and perform a set of uplink transmissions in a number of consecutive slots indicated by the number of repetitions.

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, to a user equipment (UE) , downlink control information (DCI) indicating a resource for an uplink shared channel, wherein the DCI indicates a number of repetitions associated with the resource for the uplink shared channel; and receive, from the UE, a set of uplink transmissions in a number of consecutive slots indicated by the number of repetitions.

In some aspects, an apparatus for wireless communication includes: means for receiving downlink control information (DCI) indicating a resource for an uplink shared channel, wherein the DCI indicates a number of repetitions associated with the resource for the uplink shared channel; and means for performing a set of uplink transmissions in a number of consecutive slots indicated by the number of repetitions.

In some aspects, an apparatus for wireless communication includes: means for transmitting, to a user equipment (UE) , downlink control information (DCI) indicating a resource for an uplink shared channel, wherein the DCI indicates a number of repetitions associated with the resource for the uplink shared channel; and means for receiving, from the UE, a set of uplink transmissions in a number of consecutive slots indicated by the number of repetitions.

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

The foregoing has outlined rather broadly the features and technical advantages of examples according to the disclosure in order that the detailed description that follows may be better understood. Additional features and advantages will be described hereinafter. The conception and specific examples disclosed may be readily utilized as a basis for modifying or designing other structures for carrying out the same purposes of the present disclosure. Such equivalent constructions do not depart from the scope of the appended claims. Characteristics of the concepts disclosed herein, both their organization and method of operation, together with associated advantages will be better understood from the following description when considered in connection with the accompanying figures. Each of the figures is provided for the purposes of illustration and description, and not as a definition of the limits of the claims.

BRIEF DESCRIPTION OF THE DRAWINGS

So that the above-recited features of the present disclosure can be understood in detail, a more particular description, briefly summarized above, may be had by reference to aspects, some of which are illustrated in the appended drawings. It is to be noted, however, that the appended drawings illustrate only certain typical aspects of this disclosure and are therefore not to be considered limiting of its scope, for the description may admit to other equally effective aspects. The same reference numbers in different drawings may identify the same or similar elements.

Fig. 1 is a diagram illustrating an example of a wireless network, in accordance with various aspects of the present disclosure.

Fig. 2 is a diagram illustrating an example of a base station in communication with a UE in a wireless network, in accordance with various aspects of the present disclosure.

Figs. 3-4 are diagrams illustrating examples associated with uplink and downlink communications using multiple carriers, in accordance with various aspects of the present disclosure.

Figs. 5-6 are diagrams illustrating examples associated with downlink control information signaling with a resource repetition factor, in accordance with various aspects of the present disclosure.

Figs. 7-8 are diagrams illustrating example processes associated with downlink control information signaling with a resource repetition factor, in accordance with various aspects of the present disclosure.

DETAILED DESCRIPTION

Various aspects of the disclosure are described more fully hereinafter with reference to the accompanying drawings. This disclosure may, however, be embodied in many different forms and should not be construed as limited to any specific 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 the disclosure to those skilled in the art. Based on the teachings herein, one skilled in the art should appreciate that the scope of the disclosure is intended to cover any aspect of the disclosure disclosed herein, whether implemented independently of or combined with any other aspect of the disclosure. For example, an apparatus may be implemented or a method may be practiced using any number of the aspects set forth herein. In addition, the scope of the disclosure is intended to cover such an apparatus or method which is practiced using other structure, functionality, or structure and functionality in addition to or other than the various aspects of the disclosure set forth herein. It should be understood that any aspect of the disclosure disclosed herein may be embodied by one or more elements of a claim.

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

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

Fig. 1 is a diagram illustrating an example of a wireless network 100, in accordance with various aspects of the present disclosure. The wireless network 100 may be or may include elements of a 5G (NR) network, an LTE network, and/or the like. The wireless network 100 may include a number of 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 user equipment (UEs) and may also be referred to as an NR BS, a Node B, a gNB, a 5G node B (NB) , an access point, a transmit receive point (TRP) , and/or the like. Each BS may provide communication coverage for a particular geographic area. In 3GPP, the term “cell” can refer to a coverage area of a BS and/or a BS subsystem serving this coverage area, depending on the context in which the term is used.

A BS may provide communication coverage for a macro cell, a pico cell, a femto cell, and/or another type of cell. A macro cell may cover a relatively large geographic area (e.g., several kilometers in radius) and may allow unrestricted access by UEs with service subscription. A pico cell may cover a relatively small geographic area and may allow unrestricted access by UEs with service subscription. A femto cell may cover a relatively small geographic area (e.g., a home) and may allow restricted access by UEs having association with the femto cell (e.g., UEs in a closed subscriber group (CSG) ) . A BS for a macro cell may be referred to as a macro BS. A BS for a pico cell may be referred to as a pico BS. A BS for a femto cell may be referred to as a femto BS or a home BS. In the example shown in Fig. 1, a BS 110a may be a macro BS for a macro cell 102a, a BS 110b may be a pico BS for a pico cell 102b, and a BS 110c may be a femto BS for a femto cell 102c. A BS may support one or multiple (e.g., three) cells. The terms “eNB” , “base station” , “NR BS” , “gNB” , “TRP” , “AP” , “node B” , “5G NB” , and “cell” may be used interchangeably herein.

In some aspects, a cell may not necessarily be stationary, and the geographic area of the cell may move according to the location of a mobile BS. In some aspects, the BSs may be interconnected to one another and/or to one or more other BSs or network nodes (not shown) in the wireless network 100 through various types of backhaul interfaces such as a direct physical connection, a virtual network, and/or the like using any suitable transport network.

Wireless network 100 may also include relay stations. A relay station is an entity that can receive a transmission of data from an upstream station (e.g., a BS or a UE) and send a transmission of the data to a downstream station (e.g., a UE or a BS) . A relay station may also be a UE that can relay transmissions for other UEs. In the example shown in Fig. 1, a relay BS 110d may communicate with macro BS 110a and a UE 120d in order to facilitate communication between BS 110a and UE 120d. A relay BS may also be referred to as a relay station, a relay base station, a relay, and/or the like.

Wireless network 100 may be a heterogeneous network that includes BSs of different types, e.g., macro BSs, pico BSs, femto BSs, relay BSs, and/or the like. These different types of BSs may have different transmit power levels, different coverage areas, and different impacts on interference in wireless network 100. For example, macro BSs may have a high transmit power level (e.g., 5 to 40 watts) whereas pico BSs, femto BSs, and relay BSs may have lower transmit power levels (e.g., 0.1 to 2 watts) .

A network controller 130 may couple to a set of BSs and may provide coordination and control for these BSs. Network controller 130 may communicate with the BSs via a backhaul. The BSs may also communicate with one another, e.g., directly or indirectly via a wireless or wireline backhaul.

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

Some UEs may 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, location tags, and/or the like, that may communicate with a base station, another device (e.g., remote device) , or some other entity. A wireless node may provide, for example, connectivity for or to a network (e.g., a wide area network such as Internet or a cellular network) via a wired or wireless communication link. Some UEs may be considered Internet-of-Things (IoT) devices, and/or may be implemented as NB-IoT (narrowband internet of things) devices. Some UEs may be considered a Customer Premises Equipment (CPE) . UE 120 may be included inside a housing that houses components of UE 120, such as processor components, memory components, and/or the like. In some aspects, the processor components and the memory components may be coupled together. For example, the processor components (e.g., one or more processors) and the memory components (e.g., a memory) may be operatively coupled, communicatively coupled, electronically coupled, electrically coupled, and/or the like.

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

In some aspects, 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 a base station 110 as an intermediary to communicate with one another) . For example, the UEs 120 may communicate using peer-to-peer (P2P) communications, device-to-device (D2D) communications, a vehicle-to-everything (V2X) protocol (e.g., which may include a vehicle-to-vehicle (V2V) protocol, a vehicle-to-infrastructure (V2I) protocol, and/or the like) , a mesh network, and/or the like. In this case, the UE 120 may perform scheduling operations, resource selection operations, and/or other operations described elsewhere herein as being performed by the base station 110.

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

As indicated above, Fig. 1 is provided as an example. Other examples may differ from what is described with regard to Fig. 1.

Fig. 2 is a diagram illustrating an example 200 of a base station 110 in communication with a UE 120 in a wireless network 100, in accordance with various aspects of the present disclosure. Base station 110 may be equipped with T antennas 234a through 234t, and UE 120 may be equipped with R antennas 252a through 252r, where in general T ≥ 1 and R ≥ 1.

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

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

Network controller 130 may include communication unit 294, controller/processor 290, and memory 292. Network controller 130 may include, for example, one or more devices in a core network. Network controller 130 may communicate with base station 110 via communication unit 294.

On the uplink, at UE 120, a transmit processor 264 may receive and process data from a data source 262 and control information (e.g., for reports that include RSRP, RSSI, RSRQ, CQI, and/or the like) from controller/processor 280. Transmit processor 264 may also generate reference symbols for one or more reference signals. The symbols from transmit processor 264 may be precoded by a TX MIMO processor 266 if applicable, further processed by modulators 254a through 254r (e.g., for DFT-s-OFDM, CP-OFDM, and/or the like) , and transmitted to base station 110. In some aspects, the UE 120 includes a transceiver. The transceiver may include any combination of antenna (s) 252, modulators and/or demodulators 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, for example, as described with reference to Figs. 3-8.

At base station 110, the uplink signals from UE 120 and other UEs may be received by antennas 234, processed by demodulators 232, detected by a MIMO detector 236 if applicable, and further processed by a receive processor 238 to obtain decoded data and control information sent by UE 120. Receive processor 238 may provide the decoded data to a data sink 239 and the decoded control information to controller/processor 240. Base station 110 may include communication unit 244 and communicate to network controller 130 via communication unit 244. Base station 110 may include a scheduler 246 to schedule UEs 120 for downlink and/or uplink communications. In some aspects, the base station 110 includes a transceiver. The transceiver may include any combination of antenna (s) 234, modulators and/or demodulators 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, for example, as described with reference to Figs. 3-8.

Controller/processor 240 of base station 110, controller/processor 280 of UE 120, and/or any other component (s) of Fig. 2 may perform one or more techniques associated with downlink control information signaling with a resource repetition factor, as described in more detail elsewhere herein. For example, controller/processor 240 of base station 110, controller/processor 280 of UE 120, and/or any other component (s) of Fig. 2 may perform or direct operations of, for example, process 700 of Fig. 7, process 800 of Fig. 8, and/or other processes as described herein.

Memories

242 and 282 may store data and program codes 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, program code, and/or the like) for wireless communication. For example, the one or more instructions, when executed (e.g., directly, or after compiling, converting, interpreting, and/or the like) by one or more processors of the base station 110 and/or the UE 120, may cause the one or more processors, the UE 120, and/or the base station 110 to perform or direct operations of, for example, process 700 of Fig. 7, process 800 of Fig. 8, and/or other processes as described herein. In some aspects, executing instructions may include running the instructions, converting the instructions, compiling the instructions, interpreting the instructions, and/or the like.

In some aspects, a UE (e.g., UE 120) may include means for receiving downlink control information (DCI) indicating a resource for an uplink shared channel, wherein the DCI indicates a number of repetitions associated with the resource for the uplink shared channel, means for performing a set of uplink transmissions in a number of consecutive slots indicated by the number of repetitions, and/or the like. In some aspects, such means may include one or more components of UE 120 described in connection with Fig. 2, such as controller/processor 280, transmit processor 264, TX MIMO processor 266, MOD 254, antenna 252, DEMOD 254, MIMO detector 256, receive processor 258, and/or the like.

In some aspects, a base station (e.g., base station 110) may include means for transmitting, to a user equipment (UE) , downlink control information (DCI) indicating a resource for an uplink shared channel, wherein the DCI indicates a number of repetitions associated with the resource for the uplink shared channel, means for receiving, from the UE, a set of uplink transmissions in a number of consecutive slots indicated by the number of repetitions and/or the like. In some aspects, such means may include one or more components of base station 110 described in connection with Fig. 2, 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, and/or the like.

While blocks in Fig. 2 are illustrated as distinct components, the functions described above with respect to the blocks may be implemented in a single hardware, software, or combination component or in various combinations of components. For example, the functions described with respect to the transmit processor 264, the receive processor 258, and/or the TX MIMO processor 266 may be performed by or under the control of controller/processor 280.

As indicated above, Fig. 2 is provided as an example. Other examples may differ from what is described with regard to Fig. 2.

Fig. 3 is a diagram illustrating an example 300 of uplink and downlink communications using multiple carriers, in accordance with various aspects of the present disclosure.

In some aspects, a UE may be configured to communicate on multiple carriers simultaneously and switch between the multiple carriers for uplink and/or downlink communications with a base station. For example, the UE may perform uplink and/or downlink communications on a first band. The first band may be associated with a high frequency uplink and/or downlink band with a relatively wide bandwidth (e.g., a 100 MHz bandwidth) . The first band may be associated with an NR Time Division Duplex (TDD) carrier. The UE may perform uplink communications on a second band. The second band may be associated with a low frequency uplink band with a relatively narrow bandwidth (e.g., a 15 MHz bandwidth) . The second band may be associated with an NR Frequency Division Duplex (FDD) uplink carrier. The NR TDD carrier may be associated with a different carrier frequency as compared to the NR FDD uplink carrier. The UE may perform downlink communications on a third band. The third band may be associated with a low frequency downlink band with a relatively small bandwidth (e.g., a 15 MHz bandwidth) . The UE may perform simultaneous communications with the base station using the first band, the second band, and/or the third band.

In some aspects, the UE may utilize an NR frame structure to perform the uplink and downlink communications with the base station. In the NR frame structure, a 5ms time duration may include ten slots. The ten slots may include a combination of downlink slots (e.g., downlink-only slots) , uplink slots (e.g., uplink-only slots) , and special slots. The downlink slots may be used to perform downlink communications. The uplink slots may be used to perform uplink communications. The special slots may be used to perform uplink communications and/or downlink communications. The special slots may include switching interval (s) that enable the UE to switch between multiple carriers that are supported by the UE.

In some aspects, the UE may be configured to support time switching for uplink transmissions (Tx) . For example, the UE may support uplink 1Tx-2Tx switching, in which the UE may perform uplink transmissions by switching between two carriers. The UE may use time switching between the first band associated with the NR TDD carrier and the second band associated with the NR FDD uplink carrier. With uplink time switching, the UE may perform an uplink transmission using the first band associated with the NR TDD carrier or the second band associated with the NR FDD uplink carrier, but may not perform multiple uplink transmissions simultaneously using both the first band and the second band.

As shown by reference number 302, a UE may support inter-band carrier aggregation and uplink time switching. The UE may be located at a cell center, at which the UE may be able to perform uplink time switching. In other words, the UE may be able to use the first band (e.g., the high frequency uplink and/or downlink band) due to improved coverage associated with the cell center. The UE may perform uplink and downlink communications using the first band. The UE may perform the uplink and downlink communications in the first band using a combination of downlink slots, uplink slots, and special slots. Additionally, the UE may perform some uplink communications using the second band (e.g., the low frequency uplink band) . For example, the UE may perform uplink communications in the second band using uplink slots that correspond to downlink slots or special slots in the first band, since the first band may not be available for uplink transmission on the downlink slots or the special slots. The UE may not perform uplink communications in the second band using uplink slots that correspond to uplink slots in the first band. In this case, the uplink slots associated with the first band may be utilized, and corresponding uplink slots associated with the second band may be unutilized. Additionally, the UE may perform downlink communications in the third band (e.g., the low frequency downlink band) using downlink slots.

In some aspects, when the UE is located at the cell center and is able to perform time switching, the UE may perform uplink transmissions using the first band rather than the second band. Since the first band may correspond to a high frequency uplink and/or downlink band, the first band may provide an increased data rate as compared to the second band.

As shown by reference number 304, a UE may support inter-band carrier aggregation and uplink time switching. The UE may be located at a cell edge, at which the UE may be unable to perform uplink time switching. In other words, the UE may be unable to use the first band (e.g., the high frequency uplink and/or downlink band) due to degraded coverage associated with the cell edge. The UE may perform downlink communications using the first band. The UE may perform the downlink communications in the first band using a combination of downlink slots and special slots. Additionally, the UE may perform uplink communications in the second band (e.g., the low frequency uplink band) using uplink slots. The UE may not perform uplink communications in the first band. In this case, the uplink slots associated with the second band may be utilized to improve communication performance of the UE in the degraded coverage conditions, and corresponding uplink slots associated with the first band may be unutilized. Additionally, the UE may perform downlink communications in the third band (e.g., the low frequency downlink band) using downlink slots.

As shown by reference number 306, a UE may support a standalone supplementary uplink (SUL) and uplink time switching. The UE may be located at a cell center, at which the UE may be able to perform uplink time switching. In other words, the UE may be able to use the first band (e.g., the high frequency uplink and/or downlink band) due to improved coverage associated with the cell center. The UE may perform uplink and downlink communications using the first band. The UE may perform the uplink and downlink communications in the first band using a combination of downlink slots, uplink slots, and special slots. Additionally, the UE may perform some uplink communications using the second band (e.g., the low frequency uplink band) . For example, the UE may perform uplink communications in the second band using uplink slots that correspond to downlink slots or special slots in the first band. The UE may not perform uplink communications in the second band using uplink slots that correspond to uplink slots in the first band. In this case, the uplink slots associated with the first band may be utilized, and corresponding uplink slots associated with the second band may be unutilized.

As shown by reference number 308, a UE may support a standalone supplementary uplink and uplink time switching. The UE may be located at a cell edge, at which the UE may be unable to perform uplink time switching. In other words, the UE may be unable to use the first band (e.g., the high frequency uplink and/or downlink band) due to degraded coverage associated with the cell edge. The UE may perform downlink communications using the first band. The UE may perform the downlink communications in the first band using a combination of downlink slots and special slots. Additionally, the UE may perform uplink communications in the second band (e.g., the low frequency uplink band) using uplink slots. The UE may not perform uplink communications in the first band. In this case, the uplink slots associated with the second band may be utilized, and corresponding uplink slots associated with the first band may be unutilized.

As indicated above, Fig. 3 is provided as an example. Other examples may differ from what is described with regard to Fig. 3.

Fig. 4 is a diagram illustrating an example 400 of uplink and downlink communications using multiple carriers, in accordance with various aspects of the present disclosure.

In some aspects, a UE may receive downlink control information (DCI) from a base station in a downlink slot or a special slot of a first band (e.g., a high band, such as a high frequency uplink and/or downlink band associated with an NR TDD carrier) . For example, the UE may receive one unicast DCI per slot (e.g., a downlink slot or a special slot) , when the one unicast DCI is for scheduling a downlink slot in the first band. The UE may receive two unicast DCIs per slot (e.g., the downlink slot or the special slot) , when the two unicast DCIs are for scheduling two uplink slots in a second band (e.g., a low band, such as a low frequency uplink band associated with an NR FDD carrier) .

In some aspects, the UE may be limited to receiving up to two unicast DCIs scheduling downlink per slot per scheduled component carrier for the first band (e.g., the high frequency uplink and/or downlink band associated with the NR TDD carrier) . The UE may be limited to processing the two unicast DCIs per slot per scheduled component carrier for the first band based at least in part on a processing capability of the UE. Thus, the processing burden for a UE may be reduced in comparison to processing an unlimited number of unicast DCIs per slot per scheduled component carrier, which may be beneficial for lower-capability UEs.

As shown by reference number 402, a UE may be located at a cell center, at which the UE may be able to perform uplink time switching. The UE may receive two DCIs from a base station in a downlink slot shown by reference number 406. The two DCIs may include a first DCI for scheduling of a first uplink slot in the first band (e.g., an uplink slot that occurs later in time as compared to the downlink slot in which the two DCIs were received) . The two DCIs may include a second DCI for scheduling of a second uplink slot in the second band (e.g., an uplink slot that occurs later in time as compared to the downlink slot in which the two DCIs were received) .

As further shown by reference number 402, the UE may receive third and fourth DCI from the base station in a special slot shown by reference number 408. The third and fourth DCI may include scheduling of two additional uplink slots in the first band, respectively. In this case, since the UE is able to perform uplink time switching, the two additional uplink slots may be in the first band and not the second band. Later in time within a same frame structure, the UE may receive fifth and sixth DCI in a later downlink slot shown by reference number 410 and seventh and eighth DCI in a later special slot shown by reference number 412, respectively, for scheduling of four additional uplink slots in the first band and/or the second band. However, the frame structure may include ten uplink slots that are to be scheduled, and the UE may receive two DCIs in each of a total of four slots (e.g., two downlink slots and two special slots) . In other words, the UE may receive 8 DCIs in a frame structure to schedule 10 uplink slots. As a result, the frame structure may include two uplink slots that are unable to be scheduled by the 8 DCIs received from the base station (represented by the slots on the low band marked with an “x” ) , based at least in part on the UE receiving two unicast DCIs (for scheduling downlink) per slot per scheduled component carrier for the first band.

As shown by reference number 404, a UE may be located at a cell edge, at which the UE may be unable to perform uplink time switching. The UE may receive first and second DCI from a base station in a downlink slot shown by reference number 414. The first and second DCI may schedule two uplink slots in the second band. The two uplink slots may occur later in time as compared to the downlink slot in which the first and second DCI were received. The UE may receive third and fourth DCI in a special subframe shown by reference number 416, which may schedule two additional uplink slots in the second band. The two additional uplink slots may occur later in time as compared to the special slot in which the third and fourth DCI were received.

However, similar to the example shown by reference number 402, the frame structure may include ten uplink slots that are to be scheduled, and the UE may receive two DCIs in each of a total of four slots (e.g., two downlink slots and two special slots) . In other words, the UE may receive 8 DCIs in a frame structure to schedule 10 uplink slots. As a result, the frame structure may include two uplink slots that are unable to be scheduled by the 8 DCIs received from the base station (again indicated by the “x” ) , based at least in part on the capability of the UE receiving two unicast DCIs (for scheduling uplink) per slot per scheduled component carrier for the first band.

As indicated above, Fig. 4 is provided as an example. Other examples may differ from what is described with regard to Fig. 4.

In some cases, a UE may be limited to processing two DCIs per slot per scheduled component carrier for a first band (e.g., a high frequency uplink and/or downlink band associated with an NR TDD carrier) . The UE may be limited to processing two DCIs per slot per scheduled component carrier for the first band due to a hardware capability and/or software capability of the UE. As a result, at least two uplink slots may not be scheduled in a 5ms frame duration. The at least two uplink slots that are unable to be scheduled due to the UE capability may be unutilized by the UE, which may negatively affect an uplink data rate of the UE. For example, the unutilized uplink slots may decrease the uplink data rate of the UE.

In various aspects of techniques and apparatuses described herein, DCI received by the UE may include a resource repetition factor. The resource repetition factor may be a frequency and time domain resource repetition factor. The resource repetition factor may be included in a DCI format, such as DCI format 0_1, and the like. The resource repetition factor may support a scheduling of consecutive uplink slots in a high band (e.g., a high frequency uplink and/or downlink band associated with the NR TDD carrier) and/or a low band (e.g., a low frequency uplink band associated with an NR FDD carrier) . The consecutive uplink slots may be associated with a PUSCH, a PUCCH, and/or the like. The consecutive uplink slots may be two or more uplink slots (e.g., two to four consecutive uplink slots) . As a result, a single DCI may schedule two or more consecutive uplink slots, as opposed to the previous design, in which a single DCI could schedule one uplink slot. An ability to schedule consecutive uplink slots using a single DCI may prevent certain uplink slots from being unscheduled and thereby unutilized, which may result in an increased uplink data rate for the UE.

Fig. 5 is a diagram illustrating an example 500 of DCI signaling with a resource repetition factor, in accordance with various aspects of the present disclosure. As shown in Fig. 5, example 500 includes communication between a base station (e.g., base station 110) and a UE (e.g., UE 120) . In some aspects, the base station and the UE may be included in a wireless network such as wireless network 100. The base station and the UE may communicate on a wireless access link, which may include an uplink and a downlink.

As shown by reference number 502, the base station may transmit DCI to the UE. The base station may transmit the DCI in a downlink slot of a high band. The DCI may be a unicast DCI. The high band may be a high frequency uplink and/or downlink band associated with an NR TDD carrier.

In some aspects, the DCI may indicate a resource for an uplink shared channel. The DCI may indicate a number of repetitions associated with the resource for the uplink shared channel. The resource may include a time and frequency resource. As described below, the resource for the uplink shared channel may be used to transmit a set of uplink transmissions in each slot of a number of consecutive slots.

In some aspects, the DCI may include a frequency domain resource assignment field. The frequency domain resource assignment field may be

bits, where

is a size of a control resource set (CORESET) . The number of bits used for the frequency domain resource assignment field may depend on a size of an active uplink bandwidth part (BWP) .

In some aspects, the DCI may include a time domain resource assignment field. The time domain resource assignment field may be 0, 1, 2, 3, or 4 bits. The number of bits used for the time domain resource assignment field may be equal to

to indicate an entry to select from a PUSCH time domain allocation table, where L represents an allocation length as a number of OFDM symbols.

In some aspects, the DCI may include a frequency and time domain resource repetition factor field. The number of bits used for the frequency and time domain resource repetition factor field may be 0, 1, or 2 bits. The DCI may not include the frequency and time domain resource repetition factor field when 0 bits are used. In this case, the UE may not be configured for scheduling of consecutive uplink slots. When 1 bit is used for the frequency and time domain resource repetition factor field, the UE may be configured for scheduling of two consecutive uplink slots. When 2 bits are used for the frequency and time domain resource repetition factor field, the UE may be configured for scheduling of up to four consecutive uplink slots. For example, 2 bits may be used to configure the UE to schedule three or four consecutive uplink slots. Therefore, the value of the frequency and time domain resource repetition factor field may correspond to a number of consecutive uplink slots in which to repeatedly apply a PUSCH resource assignment, as indicated in the frequency domain resource assignment field and the time domain resource assignment field included in the DCI.

In some aspects, the DCI may include a modulation and coding scheme (MCS) field. The number of bits used for the modulation and coding scheme field may be 5, 7, 9, or 11 bits. The value of the modulation and coding scheme field (e.g., a value formed using 5, 7, 9, or 11 bits) may correspond to a row number within an MCS table. When 5 bits are used for the modulation and coding scheme field, a frequency and time domain resource repetition factor field may not be present in the DCI, or an identical modulation and coding scheme may be used for consecutive slots (e.g., consecutive uplink slots) .

If 7, 9, or 11 bits are used for the modulation and coding scheme field, the frequency and time domain resource repetition factor field may be present in the DCI. For example, the frequency and time domain resource repetition factor field may configure a UE for scheduling of two, three, and/or four consecutive uplink slots.

If 7, 9, or 11 bits are used for the modulation and coding scheme field, the first five bits may indicate a modulation and coding scheme for a first slot (e.g., a first uplink slot) , and remaining bits may indicate a differential modulation and coding scheme index value for the second, third, and fourth consecutive slots, as compared to the modulation and coding scheme for the first slot. Therefore, the differential may be 2, 4, or 6 bits, depending on whether the frequency and time domain resource repetition factor field configures consecutive uplink scheduling for two, three, or four consecutive slots.

In some aspects, the DCI may include a new data indicator (NDI) field. The number of bits used for the new data indicator field may be 1, 2, 3, or 4 bits. When a frequency and time domain resource repetition factor field is present in the DCI, the new data indicator field may include a bitmap to indicate an NDI value for each consecutive slot, respectively. The bitmap may be used to indicate whether each consecutive slot is associated with a new transmission or a retransmission. For example, for two consecutive uplink slots, a 2-bit bitmap may be used, where a first bit (e.g., b ₁) may indicate an NDI for a first slot and a second bit (e.g., b ₂) may indicate an NDI for a second slot. The value for b ₁ and b ₂ may be 0 or 1. When an NDI value is toggled as compared to a previous transmission for a same HARQ process, a new transmission may be triggered. When an NDI value is not toggled as compared to a previous transmission for a same HARQ process, a retransmission may be triggered.

In some aspects, the DCI may include a redundancy version (RV) field. The number of bits used for the redundancy version field may be 2, 4, 6, or 8 bits. When 2 bits are used for the redundancy version field, a frequency and time domain resource repetition factor field may not be present in the DCI, or an identical redundancy version value (e.g., an RV identifier (ID) value) may be used for consecutive slots (e.g., consecutive uplink slots) . When 4, 6, or 8 bits are used for the redundancy version field, the redundancy version field may include a bitmap to indicate an RV value for each consecutive slot, respectively. For example, 2 bits may be used for each slot to indicate an RV ID value of 0, 1, 2, or 3, where the RV ID value of 0, 1, 2, or 3 may correspond to a type of redundancy version.

In some aspects, the DCI may include a hybrid automatic repeat request (HARQ) process number field. The number of bits used for the HARQ process number field may be 4, 8, 12, or 16 bits. When a frequency and time domain resource repetition factor field is present in the DCI, the HARQ process number field may include a bitmap to indicate a HARQ process number of each consecutive slot, respectively. For example, 4 bits may be used for each slot to indicate a value from 0-15, where the value from 0-15 may correspond to one of 16 possible HARQ processes.

As shown by reference number 504, the UE may process the DCI received from the base station. For example, the UE may decode the frequency domain resource assignment field, the time domain resource assignment field, the frequency and time domain resource repetition field, the modulation and coding scheme field, the new data indicator field, the redundancy version field, and/or the HARQ process number field included in the DCI received from the base station.

As shown by

reference numbers

506, 508, 510, the UE may perform a set of uplink transmissions to the base station in a number of consecutive slots, as indicated by a number of repetitions associated with a resource for an uplink shared channel. The number of repetitions may be included in the DCI received at the UE from the base station. The set of uplink transmissions may be on a component carrier associated with a TDD configuration.

In some aspects, the UE may perform the set of uplink transmissions to the base station in consecutive uplink slots based at least in part on the DCI received from the base station, which may include the frequency and time domain resource repetition field. Additionally, the UE may perform the set of uplink transmissions based at least in part on the frequency domain resource assignment field, the time domain resource assignment field, the modulation and coding scheme field, the new data indicator field, the redundancy version field, and/or the HARQ process number field included in the DCI included in the DCI received from the base station.

In some aspects, each uplink transmission of the set of uplink transmissions may use a same modulation and coding scheme indicated by the DCI. In some aspects, the downlink control indication may indicate a differential for the modulation and coding scheme, where the set of uplink transmissions may use a modified modulation and coding scheme, as determined based at least in part on the differential for the modulation and coding scheme.

In some aspects, the DCI may include a set of new data indicators corresponding to the number of consecutive slots. The set of new data indicators may include a bitmap including a respective bit for each new data indicator of the set of new data indicators.

In some aspects, the set of uplink transmissions may include a first transmission and a second transmission associated with different hybrid automatic repeat request processes. The UE may perform the set of uplink transmissions by performing the second transmission as a new transmission or a retransmission based at least in part on whether a new data indicator, of the set of new data indicators, corresponding to the second transmission is associated with a different value than a new data indicator, of the set of new data indicators, corresponding to the first transmission.

In some aspects, the set of uplink transmissions may use a same redundancy version indicated by the DCI. The DCI may include a set of redundancy version indicators corresponding to the set of uplink transmissions. Additionally, the DCI may include a set of hybrid automatic repeat request process number indicators corresponding to the set of uplink transmissions.

As indicated above, Fig. 5 is provided as an example. Other examples may differ from what is described with regard to Fig. 5.

Fig. 6 is a diagram illustrating an example 600 of DCI signaling with a resource repetition factor, in accordance with various aspects of the present disclosure.

As shown by reference number 602, a UE (e.g., UE 120) may be located at a cell center, at which the UE may be able to perform uplink time switching. The UE may receive two DCIs from a base station (e.g., base station 110) in a downlink slot. The two DCIs may include a first DCI and a second DCI. The first and/or second DCI may include a resource repetition factor (e.g., a frequency and time domain resource repetition field) which allows for consecutive uplink slots to be scheduled in a first band (e.g., a high band, such as a high frequency uplink and/or downlink band associated with an NR TDD carrier) and/or a second band (e.g., a low band, such as a low frequency uplink band associated with an NR FDD carrier) . In some cases, the first or second DCI may not include a resource repetition factor, in which case the first or second DCI may schedule a single uplink slot in the first band or the second band. The consecutive slots of example 600 that are scheduled by a single DCI are shown by dashed boxes, such as shown by reference number 610.

The first and/or second DCI that includes the resource repetition factor may further include a frequency domain resource assignment field, a time domain resource assignment field, a modulation and coding scheme field, a new data indicator field, a redundancy version field, and/or a HARQ process number field, as previously described with respect to Fig. 5.

In the example shown by reference number 602, the UE may receive a first and second DCI in a downlink slot. The first DCI may schedule two consecutive uplink slots in the high band, as shown by reference number 612. In this case, the first DCI may include a resource repetition factor, which may enable a same frequency and time domain resource to be used for the two consecutive uplink slots. The second DCI may schedule one uplink slot in the low band. Additionally, the UE may receive a third and fourth DCI in a special slot. The third DCI may schedule one uplink slot in the high band. The fourth DCI may schedule one uplink slot in the low band.

As shown by reference number 604, a UE may be located at a cell edge, at which the UE may be unable to perform uplink time switching. The UE may receive a first and second DCI in a downlink slot. The first DCI may schedule one uplink slot in the low band. The second DCI may schedule two consecutive uplink slots in the low band. In this case, the second DCI may include a resource repetition factor. Additionally, the UE may receive a third and fourth DCI in a special slot. The third DCI may schedule one uplink slot in the low band. The fourth DCI may schedule one uplink slot in the low band.

As shown by reference number 606, a UE may be located at a cell center, at which the UE may be able to perform uplink time switching. The UE may receive a first and second DCI in a downlink slot. The first DCI may schedule one uplink slot in the high band. The second DCI may schedule one uplink slot in the high band. Additionally, the UE may receive a third and fourth DCI in a special slot. The third DCI may schedule two consecutive uplink slots in the low band. In this case, the third DCI may include a resource repetition factor. The fourth DCI may schedule one uplink slot in the high band.

As shown by reference number 608, a UE may be located at a cell edge, at which the UE may be unable to perform uplink time switching. The UE may receive a first and second DCI in a downlink slot. The first DCI may schedule one uplink slot in the low band. The second DCI may schedule two consecutive uplink slots in the low band. In this case, the second DCI may include a resource repetition factor. Additionally, the UE may receive a third and fourth DCI in a special slot. The third DCI may schedule one uplink slot in the high band. The fourth DCI may schedule two consecutive uplink slots in the low band. In this case, the fourth DCI may include a resource repetition factor.

In some aspects, the examples shown in connection with

reference numbers

602, 604, 606, 608 include DCI that schedules two consecutive uplink slots. However, in some aspects, the DCI may schedule three, four, or more consecutive uplink slots based at least in part on the inclusion of the resource repetition factor in the DCI. Additionally, the DCI may support flexible scheduling in a frame structure, such that the examples shown in connection with

reference numbers

602, 604, 606, 608 are not intended to be limiting. For example, a UE may receive a combination of DCI including the resource repetition factor and DCI not including the resource repetition factor, such that a wide variety of scheduling configurations (both single uplink slots and consecutive uplink slots) may occur in both the high band and the low band.

As indicated above, Fig. 6 is provided as an example. Other examples may differ from what is described with regard to Fig. 6.

Fig. 7 is a diagram illustrating an example process 700 performed, for example, by a user equipment (UE) , in accordance with various aspects of the present disclosure. Example process 700 is an example where the UE (e.g., UE 120) performs operations associated with DCI signaling with a resource repetition factor.

As shown in Fig. 7, in some aspects, process 700 may include receiving downlink control information (DCI) indicating a resource for an uplink shared channel, wherein the DCI indicates a number of repetitions associated with the resource for the uplink shared channel (block 710) . For example, the UE (e.g., using antenna 252, demodulator 254, MIMO detector 256, receive processor 258, controller/processor 280, and/or memory 282) may receive downlink control information (DCI) indicating a resource for an uplink shared channel, wherein the DCI indicates a number of repetitions associated with the resource for the uplink shared channel, as described above.

As further shown in Fig. 7, in some aspects, process 700 may include performing a set of uplink transmissions in a number of consecutive slots indicated by the number of repetitions (block 720) . For example, the UE (e.g., using antenna 252, demodulator 254, MIMO detector 256, receive processor 258, transmit processor 264, TX MIMO processor 266, modulator 254, controller/processor 280, and/or memory 282) may perform a set of uplink transmissions in a number of consecutive slots indicated by the number of repetitions, as described above.

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

In a first aspect, the resource for the uplink shared channel is used to transmit the set of uplink transmissions in each slot of the number of consecutive slots.

In a second aspect, alone or in combination with the first aspect, the resource comprises a time and frequency (time/frequency) resource.

In a third aspect, alone or in combination with one or more of the first and second aspects, each uplink transmission of the set of uplink transmissions uses a same modulation and coding scheme indicated by the DCI.

In a fourth aspect, alone or in combination with one or more of the first through third aspects, the DCI indicates a differential for a modulation and coding scheme indicated by the DCI, and the set of uplink transmissions uses a modified modulation and coding scheme determined based at least in part on the differential for the modulation and coding scheme.

In a fifth aspect, alone or in combination with one or more of the first through fourth aspects, the DCI includes a set of new data indicators (NDIs) corresponding to the number of consecutive slots.

In a sixth aspect, alone or in combination with one or more of the first through fifth aspects, the set of NDIs comprises a bitmap including a bit for each NDI of the set of NDIs.

In a seventh aspect, alone or in combination with one or more of the first through sixth aspects, the set of uplink transmissions includes a first transmission and a second transmission associated with different hybrid automatic repeat request processes, and performing the set of uplink transmissions further comprises performing the second transmission as a new transmission or a retransmission based at least in part on whether an NDI, of the set of NDIs, corresponding to the second transmission is associated with a different value than an NDI, of the set of NDIs, corresponding to the first transmission.

In an eighth aspect, alone or in combination with one or more of the first through seventh aspects, the set of uplink transmissions uses a same redundancy version indicated by the DCI.

In a ninth aspect, alone or in combination with one or more of the first through eighth aspects, the DCI includes a set of redundancy version indicators corresponding to the set of uplink transmissions.

In a tenth aspect, alone or in combination with one or more of the first through ninth aspects, the DCI includes a set of hybrid automatic repeat request (HARQ) process number indicators corresponding to the set of uplink transmissions.

In an eleventh aspect, alone or in combination with one or more of the first through tenth aspects, the DCI is a unicast DCI and the set of uplink transmissions are on a component carrier associated with a time division duplexing configuration.

Although Fig. 7 shows example blocks of process 700, in some aspects, process 700 may include additional blocks, fewer blocks, different blocks, or differently arranged blocks than those depicted in Fig. 7. Additionally, or alternatively, two or more of the blocks of process 700 may be performed in parallel.

Fig. 8 is a diagram illustrating an example process 800 performed, for example, by a base station, in accordance with various aspects of the present disclosure. Example process 800 is an example where the base station (e.g., base station 110) performs operations associated with downlink control information signaling with a resource repetition factor.

As shown in Fig. 8, in some aspects, process 800 may include transmitting, to a user equipment (UE) , downlink control information (DCI) indicating a resource for an uplink shared channel, wherein the DCI indicates a number of repetitions associated with the resource for the uplink shared channel (block 810) . For example, the base station (e.g., using transmit processor 220, TX MIMO processor 230, modulator 232, antenna 234, controller/processor 240, memory 242, and/or scheduler 246) may transmit, to a UE, DCI indicating a resource for an uplink shared channel, wherein the DCI indicates a number of repetitions associated with the resource for the uplink shared channel, as described above.

As further shown in Fig. 8, in some aspects, process 800 may include receiving, from the UE, a set of uplink transmissions in a number of consecutive slots indicated by the number of repetitions (block 820) . For example, the base station (e.g., using antenna 234, demodulator 232, MIMO detector 236, receive processor 238, controller/processor 240, and/or memory 242) may receive, from the UE, a set of uplink transmissions in a number of consecutive slots indicated by the number of repetitions, as described above.

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

In a seventh aspect, alone or in combination with one or more of the first through sixth aspects, the set of uplink transmissions use a same redundancy version indicated by the DCI.

In an eighth aspect, alone or in combination with one or more of the first through seventh aspects, the DCI includes a set of redundancy version indicators corresponding to the set of uplink transmissions.

In a ninth aspect, alone or in combination with one or more of the first through eighth aspects, the DCI includes a set of hybrid automatic repeat request (HARQ) process number indicators corresponding to the set of uplink transmissions.

In a tenth aspect, alone or in combination with one or more of the first through ninth aspects, the DCI is a unicast DCI and the set of uplink transmissions are on a component carrier associated with a time division duplexing configuration.

Although Fig. 8 shows example blocks of process 800, in some aspects, process 800 may include additional blocks, fewer blocks, different blocks, or differently arranged blocks than those depicted in Fig. 8. Additionally, or alternatively, two or more of the blocks of process 800 may be performed in parallel.

The foregoing disclosure provides illustration and description, but is not intended to be exhaustive or to limit the aspects to the precise form disclosed. Modifications and variations may be made in light of the above disclosure or may be acquired from practice of the aspects.

As used herein, the term “component” is intended to be broadly construed as hardware, firmware, and/or a combination of hardware and software. As used herein, a processor is implemented in hardware, firmware, and/or a combination of hardware and software. It will be apparent that systems and/or methods described herein may be implemented in different forms of hardware, firmware, and/or a combination of hardware and software. The actual specialized control hardware or software code used to implement these systems and/or methods is not limiting of the aspects. Thus, the operation and behavior of the systems and/or methods were described herein without reference to specific software code-it being understood that software and hardware can be designed to implement the systems and/or methods based, at least in part, on the description herein.

As used herein, satisfying a threshold may, depending on the context, refer to a value being 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, and/or the like.

Even though particular combinations of features are recited in the claims and/or disclosed in the specification, these combinations are not intended to limit the disclosure of various aspects. In fact, many of these features may be combined in ways not specifically recited in the claims and/or disclosed in the specification. Although each dependent claim listed below may directly depend on only one claim, the disclosure of various aspects includes each dependent claim in combination with every other claim in the claim set. A phrase referring to “at least one of” a list of items refers to any combination of those items, including single members. As an example, “at least one of: a, b, or c” is intended to cover a, b, c, a-b, a-c, b-c, and a-b-c, as well as any combination with multiples of the same element (e.g., a-a, a-a-a, a-a-b, a-a-c, a-b-b, a-c-c, b-b, b-b-b, b-b-c, c-c, and c-c-c or any other ordering of a, b, and c) .

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

Claims

A method of wireless communication performed by a user equipment (UE) , comprising:

receiving downlink control information (DCI) indicating a resource for an uplink shared channel, wherein the DCI indicates a number of repetitions associated with the resource for the uplink shared channel; and

performing a set of uplink transmissions in a number of consecutive slots indicated by the number of repetitions.
The method of claim 1, wherein the resource for the uplink shared channel is used to transmit the set of uplink transmissions in each slot of the number of consecutive slots.
The method of claim 1, wherein the resource comprises a time and frequency (time/frequency) resource.
The method of claim 1, wherein each uplink transmission of the set of uplink transmissions uses a same modulation and coding scheme indicated by the DCI.
The method of claim 1, wherein the DCI indicates a differential for a modulation and coding scheme indicated by the DCI, and wherein the set of uplink transmissions uses a modified modulation and coding scheme determined based at least in part on the differential for the modulation and coding scheme.
The method of claim 1, wherein the DCI includes a set of new data indicators (NDIs) corresponding to the number of consecutive slots.
The method of claim 6, wherein the set of NDIs comprises a bitmap including a bit for each NDI of the set of NDIs.
The method of claim 6, wherein the set of uplink transmissions includes a first transmission and a second transmission associated with different hybrid automatic repeat request processes, and wherein performing the set of uplink transmissions further comprises:

performing the second transmission as a new transmission or a retransmission based at least in part on whether an NDI, of the set of NDIs, corresponding to the second transmission is associated with a different value than an NDI, of the set of NDIs, corresponding to the first transmission.
The method of claim 1, wherein the set of uplink transmissions uses a same redundancy version indicated by the DCI.
The method of claim 1, wherein the DCI includes a set of redundancy version indicators corresponding to the set of uplink transmissions.
The method of claim 1, wherein the DCI includes a set of hybrid automatic repeat request (HARQ) process number indicators corresponding to the set of uplink transmissions.
The method of claim 1, wherein the DCI is a unicast DCI and the set of uplink transmissions are on a component carrier associated with a time division duplexing configuration.
A method of wireless communication performed by a base station, comprising:

transmitting, to a user equipment (UE) , downlink control information (DCI) indicating a resource for an uplink shared channel, wherein the DCI indicates a number of repetitions associated with the resource for the uplink shared channel; and

receiving, from the UE, a set of uplink transmissions in a number of consecutive slots indicated by the number of repetitions.
The method of claim 13, wherein the resource for the uplink shared channel is used to transmit the set of uplink transmissions in each slot of the number of consecutive slots.
The method of claim 13, wherein the resource comprises a time and frequency (time/frequency) resource.
The method of claim 13, wherein each uplink transmission of the set of uplink transmissions uses a same modulation and coding scheme indicated by the DCI.
The method of claim 13, wherein the DCI indicates a differential for a modulation and coding scheme indicated by the DCI, and wherein the set of uplink transmissions uses a modified modulation and coding scheme determined based at least in part on the differential for the modulation and coding scheme.
The method of claim 13, wherein the DCI includes a set of new data indicators (NDIs) corresponding to the number of consecutive slots.
The method of claim 18, wherein the set of NDIs comprises a bitmap including a bit for each NDI of the set of NDIs.
The method of claim 13, wherein the set of uplink transmissions use a same redundancy version indicated by the DCI.
The method of claim 13, wherein the DCI includes a set of redundancy version indicators corresponding to the set of uplink transmissions.
The method of claim 13, wherein the DCI includes a set of hybrid automatic repeat request (HARQ) process number indicators corresponding to the set of uplink transmissions.
The method of claim 13, wherein the DCI is a unicast DCI and the set of uplink transmissions are on a component carrier associated with a time division duplexing configuration.
A user equipment (UE) for wireless communication, comprising:

a memory; and

one or more processors operatively coupled to the memory, the memory and the one or more processors configured to:

receive downlink control information (DCI) indicating a resource for an uplink shared channel, wherein the DCI indicates a number of repetitions associated with the resource for the uplink shared channel; and

perform a set of uplink transmissions in a number of consecutive slots indicated by the number of repetitions.
A base station for wireless communication, comprising:

a memory; and

one or more processors operatively coupled to the memory, the memory and the one or more processors configured to:

transmit, to a user equipment (UE) , downlink control information (DCI) indicating a resource for an uplink shared channel, wherein the DCI indicates a number of repetitions associated with the resource for the uplink shared channel; and

receive, from the UE, a set of uplink transmissions in a number of consecutive slots indicated by the number of repetitions.
A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising:

one or more instructions that, when executed by one or more processors of a user equipment (UE) , cause the UE to:

receive downlink control information (DCI) indicating a resource for an uplink shared channel, wherein the DCI indicates a number of repetitions associated with the resource for the uplink shared channel; and

perform a set of uplink transmissions in a number of consecutive slots indicated by the number of repetitions.
A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising:

one or more instructions that, when executed by one or more processors of a base station, cause the base station to:

transmit, to a user equipment (UE) , downlink control information (DCI) indicating a resource for an uplink shared channel, wherein the DCI indicates a number of repetitions associated with the resource for the uplink shared channel; and

receive, from the UE, a set of uplink transmissions in a number of consecutive slots indicated by the number of repetitions.
An apparatus for wireless communication, comprising:

means for receiving downlink control information (DCI) indicating a resource for an uplink shared channel, wherein the DCI indicates a number of repetitions associated with the resource for the uplink shared channel; and

means for performing a set of uplink transmissions in a number of consecutive slots indicated by the number of repetitions.
An apparatus for wireless communication, comprising:

means for transmitting, to a user equipment (UE) , downlink control information (DCI) indicating a resource for an uplink shared channel, wherein the DCI indicates a number of repetitions associated with the resource for the uplink shared channel; and

means for receiving, from the UE, a set of uplink transmissions in a number of consecutive slots indicated by the number of repetitions.