Downlink feedback information with physical downlink control channel repetition - Patents.com

Abstract

Various aspects of the present disclosure generally relate to wireless communications. In some aspects, a mobile station can receive a set of physical downlink control channel (PDCCH) candidates, the set of PDCCH candidates being linked for PDCCH repetition. The mobile station can detect downlink control information (DCI) carrying downlink feedback information (DFI) in one or more PDCCH candidates. The mobile station can identify a PDCCH candidate as a reference PDCCH candidate based at least in part on the PDCCH candidate satisfying one or more criteria. The mobile station can determine whether a DFI is valid for a physical uplink shared channel (PUSCH) transmission based at least in part on whether a last symbol of the PUSCH transmission precedes a first symbol of the reference PDCCH candidate by at least a particular amount of symbols. Numerous other aspects are described.

Description

[Technical field]

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0001] This patent application claims priority to U.S. Provisional Patent Application No. 63 / 262,486, entitled "DOWNLINK FEEDBACK INFORMATION WITH PHYSICAL DOWNLINK CONTROL CHANNEL REPETITION," filed on October 13, 2021, and U.S. Patent Application No. 17 / 813,507, entitled "DOWNLINK FEEDBACK INFORMATION WITH PHYSICAL DOWNLINK CONTROL CHANNEL REPETITION," filed on July 19, 2022, which are expressly incorporated by reference into this specification.

[0002] Aspects of the present disclosure relate generally to wireless communications and to techniques and apparatus for downlink feedback information with Physical Downlink Control Channel (PDCCH) repetition. [Background technology]

[0003]

[0003] Wireless communication systems have been widely deployed to provide various telecommunication services, such as telephone, video, data, messaging, and broadcast. A typical wireless communication system may employ multiple access technologies capable of supporting communication with multiple users by sharing available system resources (e.g., bandwidth, transmit power, etc.). Examples of such multiple access technologies include Code Division Multiple Access (CDMA) systems, Time Division Multiple Access (TDMA) systems, Frequency Division Multiple Access (FDMA) systems, Orthogonal Frequency Division Multiple Access (OFDMA) systems, Single Carrier Frequency Division Multiple Access (SC-FDMA) systems, Time Division Synchronous Code Division Multiple Access (TD-SCDMA) systems, and Long Term Evolution (LTE). LTE / LTE-Advanced is a set of extensions to the Universal Mobile Telecommunications System (UMTS) mobile standard promulgated by the 3rd Generation Partnership Project (3GPP).

[0004] A wireless network may include one or more base stations that support communication for a user equipment (UE) or multiple UEs. A UE may communicate with a base station via downlink and uplink communications. "Downlink" (or "DL") refers to the communication link from a base station to a UE, and "uplink" (or "UL") refers to the communication link from a UE to a base station.

[0005]

[0005] The above multiple access technologies have been adopted in various telecommunication standards to provide a common protocol that allows various UEs to communicate at city, national, regional, and / or global levels. New Radio (NR), sometimes referred to as 5G, is a set of extensions to the LTE mobile standard promulgated by 3GPP. NR is designed to better support mobile broadband Internet access by improving spectral efficiency, lowering costs, improving services, utilizing new spectrum, and using Orthogonal Frequency Division Multiplexing (OFDM) with Cyclic Prefix (CP) (CP-OFDM) on the downlink and CP-OFDM and / or Single Carrier Frequency Division Multiplexing (SC-FDM) (also known as Discrete Fourier Transform Spread OFDM (DFT-s-OFDM)) on the uplink, as well as better integrating with other open standards that support beamforming, multiple-input multiple-output (MIMO) antenna technology, and carrier aggregation. As the demand for mobile broadband access continues to grow, further improvements in LTE, NR, and other radio access technologies remain useful. Summary of the Invention

[0006]

[0006] Some aspects described herein relate to a mobile station for wireless communication. The mobile station may include a memory and one or more processors coupled to the memory. The one or more processors may be configured to receive a set of physical downlink control channel (PDCCH) candidates, the set of PDCCH candidates being linked for PDCCH repetitions. The one or more processors may be configured to detect downlink control information (DCI) carrying downlink feedback information (DFI) in one or more PDCCH candidates of the set of PDCCH candidates. The one or more processors may be configured to identify a PDCCH candidate of the set of PDCCH candidates as a reference PDCCH candidate based at least in part on the PDCCH candidate satisfying one or more criteria. The one or more processors may be configured to determine, based at least in part on whether a last symbol of a physical uplink shared channel (PUSCH) transmission precedes a first symbol of a reference PDCCH candidate by at least a particular amount of symbols, whether feedback information for a transport block of a corresponding hybrid automatic repeat request (HARQ) process number in the DFI is valid for that PUSCH transmission.

[0007]

[0007] Some aspects described herein relate to a method of wireless communication performed by a mobile station. The method may include receiving, by the mobile station, a set of PDCCH candidates, the set of PDCCH candidates being linked for PDCCH repetition. The method may include detecting, by the mobile station, a DCI carrying a DFI in one or more PDCCH candidates of the set of PDCCH candidates. The method may include identifying, by the mobile station, one PDCCH candidate of the set of PDCCH candidates as a reference PDCCH candidate based at least in part on the PDCCH candidate satisfying one or more criteria. The method may include determining, by the mobile station, whether feedback information for a transport block of a corresponding HARQ process number in the DFI is valid for the PUSCH transmission based at least in part on whether a last symbol of a PUSCH transmission precedes a first symbol of the reference PDCCH candidate by at least a particular symbol amount.

[0008]

[0008] Certain aspects described herein relate to a non-transitory computer-readable medium storing a set of instructions for wireless communication by a mobile station. The set of instructions, when executed by one or more processors of a mobile station, can cause the mobile station to receive a set of PDCCH candidates, the set of PDCCH candidates being linked for PDCCH repetitions. The set of instructions, when executed by one or more processors of a mobile station, can cause the mobile station to detect DCI carrying DFI in one or more PDCCH candidates of the set of PDCCH candidates. The set of instructions, when executed by one or more processors of a mobile station, can cause the mobile station to identify one PDCCH candidate of the set of PDCCH candidates as a reference PDCCH candidate based at least in part on the PDCCH candidate satisfying one or more criteria. The set of instructions, when executed by one or more processors of a mobile station, can cause the mobile station to determine, based at least in part on whether a last symbol of a PUSCH transmission precedes a first symbol of a reference PDCCH candidate by at least a particular amount of symbols, whether feedback information in the DFI for a transport block of a corresponding HARQ process number is valid for that PUSCH transmission.

[0009]

[0009] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include means for receiving a set of PDCCH candidates, the set of PDCCH candidates being linked for PDCCH repetition. The apparatus may include means for detecting DCI carrying a DFI in one or more PDCCH candidates of the set of PDCCH candidates. The apparatus may include means for identifying a PDCCH candidate of the set of PDCCH candidates as a reference PDCCH candidate based at least in part on the PDCCH candidate satisfying one or more criteria. The apparatus may include means for determining whether feedback information for a transport block of a corresponding HARQ process number in the DFI is valid for the PUSCH transmission based at least in part on whether a last symbol of a PUSCH transmission precedes a first symbol of the reference PDCCH candidate by at least a particular symbol amount.

[0010]

[0010] Aspects generally include methods, apparatus, systems, computer program products, non-transitory computer-readable media, user equipment, base stations, wireless communication devices, and / or processing systems substantially as described herein with reference to and as illustrated by the drawings and this specification.

[0011]

[0011] The above outlines rather broadly the features and technical advantages of the embodiments of the present disclosure in order to better understand the following "Description of the Preferred Embodiments". Additional features and advantages are described below. The concepts 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 structures are within the scope of the appended claims. The characteristics of the concepts disclosed herein, both their organization and the method of operation, together with associated advantages, will be better understood by considering the following description in conjunction with the accompanying figures. Each of the figures is provided for the purpose of illustration and description, and is not intended as a definition of the limits of the claims.

[0012]

[0012] Although aspects are described in this disclosure by way of illustration for some examples, those skilled in the art will appreciate that such aspects can be implemented in many different configurations and scenarios. The techniques described herein can be implemented using various platform types, devices, systems, shapes, sizes, and / or packaging configurations. For example, some aspects can be implemented via integrated chip embodiments, or other non-modular component-based devices (e.g., end-user devices, vehicles, communication devices, computing devices, industrial equipment, retail / purchasing devices, medical devices, and / or artificial intelligence-enabled devices). Aspects can be implemented in chip-level components, modular components, non-modular components, non-chip-level components, device-level components, and / or system-level components. Devices incorporating the described aspects and features may include additional components and features for the implementation and practice of the claimed and described aspects. For example, the transmission and reception of wireless signals may include one or more components (e.g., hardware components including antennas, radio frequency (RF) chains, power amplifiers, modulators, buffers, processors, interleavers, summers, and / or analog summers) for analog and digital purposes. It is contemplated that aspects described herein may be practiced in a wide variety of devices, components, systems, distributed configurations, and / or end-user devices of various sizes, shapes, and configurations. [Brief description of the drawings]

[0013]

[0013] In order to be able to understand in detail the features of the present disclosure listed above, a more detailed description, briefly summarized above, can be obtained by referring to the embodiments, some of which are shown in the attached drawings. However, it should be noted that the attached drawings show only certain exemplary embodiments of the present disclosure, and therefore should not be considered as limiting the scope of the present disclosure, since the present description may admit of other equally effective embodiments. The same reference numbers in different drawings may identify the same or similar elements. [Figure 1]

[0014] FIG. 1 illustrates an example of a wireless network in accordance with the present disclosure. [Diagram 2]

[0015] FIG. 1 illustrates an example of a base station in communication with a user equipment (UE) in a wireless network in accordance with the present disclosure. [Figure 3A]

[0016] FIG. 1 illustrates an example resource structure for wireless communication in accordance with the present disclosure. [Figure 3B] FIG. 1 illustrates an example resource structure for wireless communication in accordance with the present disclosure. [Figure 3C] FIG. 1 illustrates an example resource structure for wireless communication in accordance with the present disclosure. [Figure 3D] FIG. 1 illustrates an example resource structure for wireless communication in accordance with the present disclosure. [Figure 3E] FIG. 1 illustrates an example resource structure for wireless communication in accordance with the present disclosure. [Figure 4A]

[0017] FIG. 1 illustrates an example associated with Downlink Feedback Information (DFI) with Physical Downlink Control Channel (PDCCH) repetition according to the present disclosure. [Figure 4B] FIG. 1 illustrates an example embodiment associated with Downlink Feedback Information (DFI) with Physical Downlink Control Channel (PDCCH) repetition according to the present disclosure. [Figure 4C]FIG. 1 illustrates an example associated with Downlink Feedback Information (DFI) with Physical Downlink Control Channel (PDCCH) repetition according to the present disclosure. [Figure 4D] FIG. 1 illustrates an example associated with Downlink Feedback Information (DFI) with Physical Downlink Control Channel (PDCCH) repetition according to the present disclosure. [Diagram 5]

[0018] FIG. 1 illustrates an example process associated with DFI with PDCCH repetition, in accordance with the present disclosure. [Figure 6]

[0019] FIG. 1 is a diagram of an example apparatus for wireless communication in accordance with the present disclosure. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0014]

[0020] Various aspects of the present disclosure will now be described more fully with reference to the accompanying drawings. However, the present disclosure may be embodied in many different forms and should not be construed as limited to any specific structure or function presented throughout the present 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. It should be appreciated by those skilled in the art that the scope of the present disclosure is intended to encompass all aspects of the present disclosure disclosed herein, whether implemented independently of or in combination with any other aspects of the present disclosure. For example, an apparatus can be implemented or a method can be practiced using any number of the aspects described herein. Moreover, the scope of the present disclosure is intended to encompass such an apparatus or method that is practiced using other structures, functions, or structures and functions in addition to or other than the various aspects of the present disclosure described herein. It should be appreciated that any aspect of the present disclosure disclosed herein can be embodied by one or more elements of a claim.

[0015]

[0021] Several aspects of a telecommunications system are now presented with reference to various apparatus and techniques that are described in the Detailed Description below and illustrated in the accompanying drawings by various blocks, modules, components, circuits, steps, processes, algorithms, etc. (collectively referred to as "elements"). These elements may be implemented using hardware, software, or a combination thereof. Whether such elements are implemented as hardware or software depends on the particular application and design constraints imposed on the overall system.

[0016]

[0022] Although aspects may be described herein using terminology commonly associated with 5G or New Radio (NR) radio access technologies (RATs), aspects of the disclosure may also be applied to other RATs, such as 3G RATs, 4G RATs, and / or RATs subsequent to 5G (e.g., 6G).

[0017]

[0023] 1 illustrates an example of a wireless network 100 in accordance with the present disclosure. Wireless network 100 may be or include elements of a 5G (e.g., NR) network and / or a 4G (e.g., Long Term Evolution (LTE)) network, among other examples. Wireless network 100 may include one or more base stations 110 (shown as BS 110a, BS 110b, BS 110c, and BS 110d), user equipment (UE) 120 or multiple UEs 120 (shown as UE 120a, UE 120b, UE 120c, UE 120d, and UE 120e), and / or other network entities. Base station 110 is an entity that communicates with UE 120. The base stations 110 (which may also be referred to as BSs) may include, for example, NR base stations, LTE base stations, Node Bs, eNBs (e.g., in 4G), gNBs (e.g., in 5G), access points, and / or transmit / receive points (TRPs). Each base station 110 may provide communication coverage for a particular geographic area. In the Third Generation Partnership Project (3GPP), the term "cell" may refer to the coverage area of ​​a base station 110 and / or a base station subsystem serving that coverage area, depending on the context in which the term is used.

[0018]

[0024] A base station 110 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., a few kilometers in radius) and may allow unrestricted access by UEs 120 with service subscriptions. A pico cell may cover a relatively small geographic area and may allow unrestricted access by UEs 120 with service subscriptions. A femto cell may cover a relatively small geographic area (e.g., a home) and may allow restricted access by UEs 120 that have an association with the femto cell (e.g., UEs 120 in a Closed Subscriber Group (CSG)). A base station 110 for a macro cell may be referred to as a macro base station. A base station 110 for a pico cell may be referred to as a pico base station. A base station 110 for a femto cell may be referred to as a femto base station or a home base station. 1, BS 110a may be a macro base station for a macro cell 102a, BS 110b may be a pico base station for a pico cell 102b, and BS 110c may be a femto base station for a femto cell 102c. A base station may support one or multiple (e.g., three) cells.

[0019]

[0025] In some embodiments, the cells may not necessarily be fixed, and the geographic area of ​​the cells may move according to the location of the base stations 110 that are mobile (e.g., mobile base stations). In some embodiments, the base stations 110 may be interconnected to each other and / or to one or more other base stations 110 or network nodes (not shown) within the wireless network 100 through various types of backhaul interfaces, such as direct physical connections or virtual networks, using any suitable transport network.

[0020]

[0026] The wireless network 100 may include one or more relay stations. A relay station is an entity capable of receiving a data transmission from an upstream station (e.g., a base station 110 or a UE 120) and transmitting the data transmission to a downstream station (e.g., a UE 120 or a base station 110). A relay station may also be a UE 120 capable of relaying a transmission for another UE 120. In the embodiment shown in FIG. 1, a BS 110d (e.g., a relay base station) may communicate with a BS 110a (e.g., a macro base station) and a UE 120d to facilitate communication between the BS 110a (e.g., a macro base station) and the UE 120d. A base station 110 that relays communication may also be referred to as a relay station, a relay base station, a repeater, etc.

[0021]

[0027] Wireless network 100 may be a heterogeneous network including different types of base stations 110, such as macro base stations, pico base stations, femto base stations, relay base stations, etc. These different types of base stations 110 may have different transmit power levels, different coverage areas, and / or different susceptibility to interference within wireless network 100. For example, macro base stations may have high transmit power levels (e.g., 5-40 Watts), while pico base stations, femto base stations, and relay base stations may have lower transmit power levels (e.g., 0.1-2 Watts).

[0022]

[0028] A network controller 130 may be coupled to or in communication with a set of base stations 110 and may provide coordination and control for these base stations 110. The network controller 130 may communicate with the base stations 110 via backhaul communication links. The base stations 110 may communicate with each other directly or indirectly via wireless or wired backhaul communication links.

[0023]

[0029] The UEs 120 may be dispersed throughout the wireless network 100, and each UE 120 may be fixed or mobile. The UEs 120 may include, for example, an access terminal, a terminal, a mobile station, and / or a subscriber unit. The UEs 120 may be a mobile phone (e.g., a smartphone), 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, a biometric device, a wearable device (e.g., a smart watch, a smart clothing, a smart glasses, a smart wristband, a smart jewelry (e.g., a smart ring or a smart bracelet)), an entertainment device (e.g., a music device, a video device, and / or a satellite radio), a vehicle component or sensor, a smart meter / sensor, an industrial manufacturing equipment, a global positioning system device, and / or any other suitable device configured to communicate over a wireless medium.

[0024]

[0030] Some UEs 120 may be considered as machine type communication (MTC) UEs or evolved or enhanced machine type communication (eMTC) UEs. MTC UEs and / or eMTC UEs may include, for example, a robot, a drone, a remote device, a sensor, a meter, a monitor, and / or a location tag that may communicate with a base station, another device (e.g., a remote device), or some other entity. Some UEs 120 may be considered as Internet of Things (IoT) devices and / or may be implemented as NB-IoT (narrowband IoT) devices. Some UEs 120 may be considered as customer premises equipment. The UEs 120 may be included within a housing that houses components of the UEs 120, such as a processor component and / or a memory component. In some embodiments, the processor component and the memory component may be coupled together. For example, the processor component (e.g., one or more processors) and the memory component (e.g., a memory) may be operatively coupled, communicatively coupled, electronically coupled, and / or electrically coupled.

[0025]

[0031] In general, any number of wireless networks 100 may be deployed within a given geographic area. Each wireless network 100 may support a particular RAT and may operate on one or more frequencies. The RAT may be referred to as a radio technology, an air interface, etc. The frequencies may be referred to as a carrier, a frequency channel, etc. To avoid interference between wireless networks of different RATs, each frequency may support a single RAT within a given geographic area. In some cases, NR networks or 5G RAT networks may be deployed.

[0026]

[0032] In some embodiments, two or more UEs 120 (e.g., shown as UE 120a and UE 120e) may communicate directly (e.g., without using base station 110 as an intermediary to communicate with each other) using one or more sidelink channels. For example, the UEs 120 may communicate using peer-to-peer (P2P) communication, device-to-device (D2D) communication, a vehicle-to-everything (V2X) protocol (which may include, e.g., a vehicle-to-vehicle (V2V) protocol, a vehicle-to-infrastructure (V2I) protocol, or a vehicle-to-pedestrian (V2P) protocol), and / or a mesh network. In such embodiments, the UEs 120 may perform scheduling operations, resource selection operations, and / or other operations described elsewhere herein as being performed by the base station 110.

[0027]

[0033] The devices of the wireless network 100 may communicate using an electromagnetic spectrum, which may be subdivided by frequency or wavelength into various classes, bands, channels, etc. For example, the devices of the wireless network 100 may communicate using one or more operating bands. In 5G NR, two initial operating bands have been identified as frequency range designations FR1 (410 MHz-7.125 GHz) and FR2 (24.25 GHz-52.6 GHz). It should be understood that FR1 is often referred to (interchangeably) as a "sub-6 GHz" band in various documents and papers, although a portion of FR1 is higher than 6 GHz. Similar nomenclature issues may arise with respect to FR2, which is often referred to (interchangeably) as a "mm-wave" band in documents and papers, even though FR2 is different from the extremely high frequency (EHF) band (30 GHz-300 GHz) identified as a "mm-wave" band by the International Telecommunications Union (ITU).

[0028]

[0034] Frequencies between FR1 and FR2 are often referred to as mid-band frequencies. Recent 5G NR studies have identified operating bands for these mid-band frequencies as frequency range designation FR3 (7.125 GHz to 24.25 GHz). Frequency bands within FR3 may inherit the characteristics of FR1 and / or FR2, and therefore may effectively extend the features of FR1 and / or FR2 to the mid-band frequencies. Furthermore, higher frequency bands are currently being considered to extend 5G NR operation beyond 52.6 GHz. For example, three higher operating bands have been identified as frequency range designations FR4a or FR4-1 (52.6 GHz to 71 GHz), FR4 (52.6 GHz to 114.25 GHz), and FR5 (114.25 GHz to 300 GHz). Each of these higher frequency bands is within the EHF band.

[0029]

[0035] With the above examples in mind, it should be understood that unless otherwise specified, terms such as "sub-6 GHz" as used herein may broadly refer to frequencies that may be below 6 GHz, frequencies that may be in the range of FR1, or frequencies that may include mid-band frequencies. Furthermore, unless otherwise specified, it should be understood that terms such as "mmWave" as used herein may broadly refer to frequencies that may be in the range of FR2, FR4, FR4-a or FR4-1, and / or FR5, or frequencies that may be in the range of the EHF band. It is contemplated that the frequencies included within these operating bands (e.g., FR1, FR2, FR3, FR4, FR4-a, FR4-1, and / or FR5) may be changed, and the techniques described herein may be applicable to those changed frequency ranges.

[0030]

[0036] In some aspects, the UE 120 may include a communications manager 140. As described in more detail elsewhere herein, the communications manager 140 may perform one or more operations associated with downlink feedback information (DFI) with physical downlink control channel (PDCCH) repetitions. Additionally or alternatively, the communications manager 140 may perform one or more other operations described herein.

[0031]

[0037] As noted above, Figure 1 is provided as one example, other examples may differ from those described with respect to Figure 1.

[0032]

[0038] 2 illustrates an embodiment 200 of a base station 110 in communication with a UE 120 in a wireless network 100 in accordance with the present disclosure. The base station 110 may be equipped with a set of antennas 234a through 234t, such as T antennas, where T≧1. The UE 120 may be equipped with a set of antennas 252a through 252r, such as R antennas, where R≧1.

[0033]

[0039] At the base station 110, the transmit processor 220 may receive data intended for the UE 120 (or set of UEs 120) from the data source 212. The transmit processor 220 may select one or more modulation and coding schemes (MCSs) for the UE 120 based at least in part on one or more channel quality indicators (CQIs) received from the UE 120. The base station 110 may process (e.g., encode and modulate) data for the UE 120 based at least in part on the MCS(es) selected for the UE 120 and may provide data symbols for the UE 120. The transmit processor 220 may process system information (e.g., related to semi-static resource partitioning information (SRPI)) and control information (e.g., CQI requests, grants, and / or higher layer signaling) and provide overhead symbols and control symbols. The transmit processor 220 may generate reference symbols for a reference signal (e.g., a cell-specific reference signal (CRS) or a demodulation reference signal (DMRS)) and a synchronization signal (e.g., a primary synchronization signal (PSS) or a 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, control symbols, overhead symbols, and / or reference symbols, if applicable, and may provide a set of output symbol streams (e.g., T output symbol streams) to a corresponding set of modems 232 (e.g., T modems), depicted as modems 232a through 232t. For example, each output symbol stream may be provided to a modulator component (depicted as MOD) of the modem 232. Each modem 232 may use a separate modulator component to process (e.g., for OFDM) the separate output symbol stream to obtain an output sample stream. Each modem 232 may further use a separate modulator component to process (eg, convert to analog, amplify, filter, and / or upconvert) the output sample stream to obtain a downlink signal.Modems 232a through 232t may transmit a set of downlink signals (eg, T downlink signals) via a corresponding set of antennas 234 (eg, T antennas), which are illustrated as antennas 234a through 234t.

[0034]

[0040] At the UE 120, a set of antennas 252 (depicted as antennas 252a through 252r) may receive downlink signals from the base station 110 and / or other base stations 110 and may provide a set of received signals (e.g., R received signals) to a set of modems 254 (e.g., R modems), depicted as modems 254a through 254r. For example, each received signal may be provided to a demodulator component (depicted as DEMOD) of the modems 254. Each modem 254 may use a separate demodulator component to condition (e.g., filter, amplify, downconvert, and / or digitize) the received signal to obtain input samples. Each modem 254 may use a demodulator component to further process the input samples (e.g., for OFDM) to obtain received symbols. A MIMO detector 256 may obtain received symbols from the modems 254, perform MIMO detection on the received symbols if applicable, and provide detected symbols. The receive processor 258 may process (e.g., demodulate and decode) the detected symbols, provide decoded data for the UE 120 to a data sink 260, and provide decoded control and system information to the controller / processor 280. The term "controller / processor" may refer to one or more controllers, one or more processors, or a combination thereof. The channel processor may determine a reference signal received power (RSRP) parameter, a received signal strength indicator (RSSI) parameter, a reference signal received quality (RSRQ) parameter, and / or a CQI parameter, among other examples. In some embodiments, one or more components of the UE 120 may be included within the housing 284.

[0035]

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

[0036]

[0042] One or more antennas (e.g., antennas 234a-t and / or antennas 252a-r) may include or be contained within one or more antenna panels, one or more antenna groups, one or more sets of antenna elements, and / or one or more antenna arrays, among other examples. An antenna panel, antenna group, set of antenna elements, and / or antenna array may include one or more antenna elements (in a single housing or multiple housings), a set of coplanar antenna elements, a set of non-coplanar antenna elements, and / or one or more antenna elements coupled to one or more transmitting and / or receiving components, such as one or more components of FIG.

[0037]

[0043] On the uplink, at the UE 120, the transmit processor 264 may receive and process data from the data source 262 and control information (e.g., for reports including RSRP, RSSI, RSRQ, and / or CQI) from the controller / processor 280. The transmit processor 264 may generate reference symbols for one or more reference signals. The symbols from the transmit processor 264 may be precoded by a TX MIMO processor 266, if applicable, and further processed by the modem 254 (e.g., for DFT-s-OFDM or CP-OFDM) and transmitted to the base station 110. In some embodiments, the modem 254 of the UE 120 may include a modulator and demodulator. In some embodiments, the UE 120 includes a transceiver. The transceiver may include any combination of antenna(s) 252, modem(s) 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., with reference to FIGS. 4A-4D, 5, and 6).

[0038]

[0044] At the base station 110, uplink signals from the UE 120 and / or other UEs may be received by an antenna 234, processed by a modem 232 (e.g., a demodulator component of the modem 232, denoted as DEMOD), detected by a MIMO detector 236, if applicable, and further processed by a receive processor 238 to obtain decoded data and control information transmitted by the UE 120. The receive processor 238 may provide the decoded data to a data sink 239 and the decoded control information to a controller / processor 240. The base station 110 may include a communication unit 244 and may communicate with the network controller 130 via the communication unit 244. The base station 110 may include a scheduler 246 for scheduling one or more UEs 120 for downlink and / or uplink communications. In some embodiments, the modem 232 of the base station 110 may include a modulator and demodulator. In some embodiments, the base station 110 includes a transceiver. The transceiver may include any combination of antenna(s) 234, modem(s) 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., with reference to FIGS. 4A-4D, 5, and 6).

[0039]

[0045] The controller / processor 240 of the base station 110, the controller / processor 280 of the UE 120, and / or any other component(s) of FIG. 2 may perform one or more techniques associated with DFI with PDCCH repetition, as described in more detail elsewhere herein. For example, the controller / processor 240 of the base station 110, the controller / processor 280 of the UE 120, and / or any other component(s) of FIG. 2 may perform or direct the operation of, for example, process 500 of FIG. 5 and / or other processes as described herein. The memory 242 and the memory 282 may store data and program codes related to the base station 110 and the UE 120, respectively. In some embodiments, the memory 242 and / or the memory 282 may include a non-transitory computer-readable medium having stored thereon one or more instructions (e.g., code and / or program code) related to wireless communication. For example, the one or more instructions, when executed (e.g., directly or after being compiled, translated, and / or interpreted) 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 500 of FIG. 5 and / or other processes described herein. In some embodiments, executing the instructions may include executing the instructions, translating the instructions, compiling the instructions, and / or interpreting the instructions, among other examples.

[0040]

[0046] In some aspects, a mobile station (e.g., UE 120) includes means for receiving, by the mobile station, a set of PDCCH candidates, the set of PDCCH candidates being linked for PDCCH repetition; means for detecting, by the mobile station, downlink control information (DCI) carrying downlink feedback information (DFI) in one or more PDCCH candidates of the set of PDCCH candidates; means for identifying, by the mobile station, a PDCCH candidate of the set of PDCCH candidates as a reference PDCCH candidate based at least in part on the PDCCH candidate satisfying one or more criteria; and / or means for determining, by the mobile station, whether feedback information for a transport block of a corresponding HARQ process number in the DFI is valid for the PUSCH transmission based at least in part on a last symbol of a physical uplink shared channel (PUSCH) transmission being earlier than a first symbol of the reference PDCCH candidate by at least a certain amount of symbols. In some aspects, the means for a mobile station to perform the operations described herein may include, for example, one or more of the communications manager 140, the antenna 252, the modem 254, the MIMO detector 256, the receive processor 258, the transmit processor 264, the TX MIMO processor 266, the controller / processor 280, or the memory 282.

[0041]

[0047] 2 are shown as separate components, the functionality described above with respect to these blocks may be implemented in a single hardware, software, or combination component, or in various combinations of components. For example, functionality described with respect to transmit processor 264, receive processor 258, and / or TX MIMO processor 266 may be performed by or under the control of controller / processor 280.

[0042]

[0048] As noted above, Figure 2 is provided as one example, other examples may differ from those described with respect to Figure 2.

[0043]

[0049] 3A-3E are diagrams illustrating an example resource structure 300 for wireless communication in accordance with the present disclosure. The resource structure 300 illustrates one example of various groupings of resources described herein. As shown, the resource structure 300 may include a subframe 305. The subframe 305 may include a number of slots 310. Although the resource structure 300 is shown as including two slots per subframe, a different number of slots may be included in a subframe (e.g., four slots, eight slots, sixteen slots, thirty-two slots, or another amount of slots). In some aspects, a different type of transmission time interval (TTI) other than a subframe and / or slot may be used. The slot 310 may include a number of symbols 315, such as seven symbols per slot.

[0044]

[0050] A potential control region of a slot 310 may be referred to as a control resource set (CORESET) 320 and may be structured to support efficient resource usage, such as by flexible configuration or reconfiguration of resources of the CORESET 320 for one or more PDCCHs and / or one or more physical downlink shared channels (PDSCHs). In some aspects, the CORESET 320 may occupy the first symbol 315 of the slot 310, the first two symbols 315 of the slot 310, or the first three symbols 315 of the slot 310. Thus, the CORESET 320 may include multiple resource blocks (RBs) in the frequency domain and either one, two, or three symbols 315 in the time domain. In 5G, the amount of resources included within the CORESET 320 may be flexibly configured, such as by using radio resource control (RRC) signaling to indicate the frequency domain region (e.g., amount of resource blocks) and / or time domain region (e.g., amount of symbols) for the CORESET 320.

[0045]

[0051] As shown, a symbol 315 including a CORESET 320 may include one or more control channel elements (CCEs) 325 spanning a portion of a system bandwidth, shown as two CCEs 325 as an example. The CCEs 325 may include downlink control information (DCI) used to provide control information for wireless communications. A base station may transmit DCI among multiple CCEs 325 (as shown), and the amount of CCEs 325 used for transmission of the DCI represents an aggregation level (AL) used by the base station for transmission of the DCI. In FIG. 3, an aggregation level of 2 is shown as an example, corresponding to two CCEs 325 in the slot 310. In some aspects, a different aggregation level may be used, such as 1, 2, 4, 8, 16, or another aggregation level.

[0046]

[0052] Each CCE 325 may include a fixed amount of resource element groups (REGs) 330, shown as six REGs 330, or may include a variable amount of REGs 330. In some aspects, the amount of REGs 330 included in a CCE 325 may be specified by a REG bundle size. The REGs 330 may include one resource block within a symbol 315, which may include 12 resource elements (REs) 335. A resource element 335 may occupy one subcarrier in the frequency domain and one OFDM symbol in the time domain.

[0047]

[0053] A search space may include all possible locations (e.g., in time and / or frequency) where a PDCCH may be located. CORESET 320 may include one or more search spaces, such as a UE-specific search space, a group common search space, and / or a common search space. A search space may indicate a set of locations of CCEs where a UE may find a PDCCH that can potentially be used to transmit control information to the UE. The possible locations for a PDCCH may depend on whether the PDCCH is a UE-specific PDCCH (e.g., for a single UE) or a group common PDCCH (e.g., for multiple UEs) and / or an aggregation level being used. The possible locations for a PDCCH (e.g., in time and / or frequency) may be referred to as PDCCH candidates, and the set of all possible PDCCH locations at an aggregation level may be referred to as a search space. For example, the set of all possible PDCCH locations for a particular UE may be referred to as a UE-specific search space. Similarly, the set of all possible PDCCH locations across all UEs may be referred to as a common search space. The set of all possible PDCCH locations for a particular group of UEs may be referred to as a group common search space. One or more search spaces across an aggregation level may be referred to as a search space (SS) set.

[0048]

[0054] In some cases, the UE may receive the DCI via a PDCCH candidate. In some cases, the DCI may include a DFI indicating feedback information associated with one or more previous PUSCH transmissions. For example, the DCI may include a specific format (e.g., DCI format 0_1) having a cyclic redundancy check (CRC) scrambled by a configured scheduling radio network temporary identifier (CS-RNTI). The DCI may include a DFI flag field. The UE may determine that the DCI includes a DFI if the DFI flag field is set to a first value (e.g., 1) and may determine that the DCI does not include a DFI if the DFI flag field is set to a second value (e.g., 0).

[0049]

[0055] The DFI included in the DCI when the DFI flag field is set to a first value may include a 16-bit bitmap indicating feedback information (e.g., HARQ feedback information) for each identifier (e.g., for a hybrid automatic repeat request (HARQ) identifier) ​​of a previous PUSCH transmission. In some cases, the UE may determine the validity of the DFI for each PUSCH transmission based at least in part on when the PUSCH transmission is received (e.g., by the base station 110 that is transmitting the DCI to the UE) relative to the first symbol of the DCI that includes the DFI.

[0050]

[0056] In some cases, the PUSCH transmission may be transmitted without repetition. The PUSCH transmission may be associated with a semi-static configuration (e.g., configured by a configuration grant) or may be dynamically scheduled. The UE may determine that the DFI is valid for each PUSCH transmission whose last symbol is transmitted at least a certain symbol amount before the first symbol of the DCI is received by the UE. In some cases, this certain symbol amount may be configured by the network (e.g., the base station 110 transmitting the DCI to the UE). For example, as shown in FIG. 3B, this certain symbol amount may correspond to a configuration grant minimum DFI delay (cg-minDFI-Delay) parameter 340.

[0051]

[0057] The UE may determine that the DFI is not valid for PUSCH transmissions associated with HARQ identifiers 3 and 4 based at least in part on the last symbol of the PUSCH transmission not being transmitted at least an amount of symbols indicated by the cg-minDFI-Delay parameter 340 before the first symbol of the DCI including the DFI is received by the UE. The UE may determine that the DFI is valid for PUSCH transmissions associated with HARQ identifiers 0, 1, and 8 based at least in part on the last symbol of each of the PUSCH transmissions being transmitted at least an amount of symbols indicated by the cg-minDFI-Delay parameter 340 before the first symbol of the DCI including the DFI is received by the UE.

[0052]

[0058] In some cases, as shown in Figure 3C, a PUSCH transmission (e.g., a PUSCH transmission associated with HARQ identifier 1 as shown) may be configured by a configuration grant and may be transmitted with repetitions. In these cases, the UE may determine that the DFI is valid for a PUSCH transmission if the last symbol of any repetition of the PUSCH transmission is transmitted at least a certain amount of symbols before the first symbol of the DCI carrying the DFI is received by the UE.

[0053]

[0059] 3D, a PUSCH transmission (e.g., a PUSCH transmission associated with HARQ identifier 1 as shown) may be scheduled by a dynamic grant and may be transmitted with repetitions. In these cases, the UE may determine that the DFI is valid for a PUSCH transmission if the DFI indicates an acknowledgment (ACK) associated with the PUSCH transmission and the last symbol of the first repetition of the PUSCH transmission is transmitted at least a certain amount of symbols before the first symbol of the DCI carrying the DFI is received by the UE.

[0054]

[0060] In some cases, the DFI may indicate a negative acknowledgement (NACK) associated with a PUSCH transmission. In these cases, the UE may determine that the DFI is valid for a PUSCH transmission if the last symbol of the last repetition of the PUSCH transmission is transmitted at least a certain amount of symbols before the first symbol of the DCI carrying the DFI is received by the UE. As shown in FIG. 3E, the UE may determine that the DFI is not valid for a PUSCH transmission associated with HARQ identifier (ID) 1 based at least in part on the last symbol of the last repetition of the PUSCH transmission (e.g., repetition 4 as shown) being the least a certain amount of symbols before the first symbol of the DCI carrying the DFI is received by the UE.

[0055]

[0061] In some cases, each PDCCH candidate may be configured with repetition. For example, two SS sets may be linked by an RRC configuration. The PDCCH candidates of the two linked SS sets may be one-to-one mapped (e.g., the first PDCCH candidate of the first SS set may be mapped to the first PDCCH candidate of the second SS set). The two PDCCH candidates that are mapped together may have the same aggregation level and may carry the same DCI payload.

[0056]

[0062] The UE may receive two PDCCH candidates and may decode the DCI in the first PDCCH candidate received by the UE or the second PDCCH candidate received by the UE, or may perform soft combining to decode the DCI. Thus, the UE may decode the DCI included in the first PDCCH candidate received by the UE, the DCI included in the second PDCCH candidate received by the UE, or both the DCI included in the first PDCCH candidate received by the UE and the DCI included in the second PDCCH candidate received by the UE.

[0057]

[0063] In some cases, the DCI may include a DFI indicating feedback information associated with one or more previous PUSCH transmissions. For example, the DCI may include a particular format (e.g., DCI format 0_1) with a CRC scrambled by the CS-RNTI. The DCI may include a DFI flag field set to a first value (e.g., 1) indicating that the DCI includes a DFI associated with a previous PUSCH transmission. The UE may determine whether the DFI is valid for the PUSCH transmission in a manner similar to that described above. However, because the UE may decode the DCI included in the first PDCCH candidate, the second PDCCH candidate, or both the first PDCCH candidate and the second PDCCH candidate, the first symbol of the DCI carrying the DFI may change based at least in part on the DCI decoded by the UE. Therefore, the UE may determine a different result regarding whether the DFI is valid for the PUSCH transmission based at least in part on the DCI decoded by the UE.

[0058]

[0064] Some techniques and apparatus described herein enable a UE to identify a reference to use to determine whether a DFI is valid for a PUSCH transmission when the UE receives a linked PDCCH candidate. In some aspects, the UE can determine the reference as corresponding to a DCI received via a PDCCH candidate that meets one or more criteria. By utilizing the reference to determine whether a DFI included in the DCI is valid for a PUSCH transmission, the UE can prevent a different result from being determined based at least in part on the DCI decoded by the UE.

[0059]

[0065] As mentioned above, Figures 3A-3E are provided as an example, other examples may differ from those described with respect to Figures 3A-3E.

[0060]

[0066] 4A-4D are diagrams illustrating examples 400, 415, 430, 445 associated with DFI with PDCCH repetition, according to the present disclosure. As shown in FIG. 4A, in some aspects, a UE (e.g., UE 120) may receive a set of PDCCH candidates (e.g., PDCCH candidate 405 and PDCCH candidate 410, as shown). These PDCCH candidates may be linked for PDCCH repetition, as described elsewhere herein.

[0061]

[0067] In some aspects, the UE may detect a DCI carrying a DFI in one or more of the PDCCH candidates 405, 410. In some aspects, the UE may decode the PDCCH candidate 405 and detect that the DCI includes a DFI. In some aspects, the UE may decode the PDCCH candidate 410 and detect that the DCI includes a DFI. In some aspects, the UE may perform soft-combining to decode the PDCCH candidate 405 and the PDCCH candidate 410 and may detect that the DCI includes a DFI based at least in part on performing soft-combining to decode the PDCCH candidate 405 and the PDCCH candidate 410.

[0062]

[0068] In some aspects, the UE may detect that the DCI carries a DFI based at least in part on the DCI including a particular format (e.g., DCI format 0_1) with a CRC scrambled by the CS-RNTI and including a DFI flag field set to a particular value (e.g., 1). The DFI may include a 16-bit bitmap indicating feedback information (e.g., HARQ feedback information) for each identifier (e.g., for each HARQ identifier) ​​of the previous PUSCH transmission.

[0063]

[0069] In some aspects, the UE may determine one or more reference criteria for determining a reference to utilize to determine the validity of the DFI for each PUSCH transmission. In some aspects, the one or more reference criteria may indicate, among other examples, that a PDCCH candidate that starts earliest in time with respect to other PDCCH candidates should be selected as a reference, a PDCCH candidate that ends earliest in time with respect to other PDCCH candidates should be selected as a reference, a PDCCH candidate that starts latest in time with respect to other PDCCH candidates should be selected as a reference, or a PDCCH candidate that ends latest in time with respect to other PDCCH candidates should be selected as a reference.

[0064]

[0070] In some aspects, the UE can determine that PDCCH candidate 405 meets one or more reference criteria and can select PDCCH candidate 405 as a reference. In some aspects, the UE can determine that PDCCH candidate 410 meets one or more reference criteria and can select PDCCH candidate 410 as a reference.

[0065]

[0071] In some aspects, as shown in FIG. 4A, the previous PUSCH transmission may be transmitted without repetition. The UE may determine the validity of the DFI for the previous PUSCH transmission based at least in part on the previous PUSCH transmission being transmitted without repetition. For example, the UE may determine the validity of the DFI for the previous PUSCH transmission based at least in part on whether the last symbol of the previous PUSCH transmission was transmitted at least a particular symbol amount earlier than the first symbol of the reference in a manner similar to that described elsewhere herein. As shown in FIG. 4A, the UE may determine that the DFI is valid for the previous PUSCH transmission associated with HARQ IDs 8, 0, and 1 based at least in part on the last symbol of the previous PUSCH transmission being transmitted at least a particular symbol amount earlier than the first symbol of the reference. As also shown in FIG. 4A, the UE may determine that the DFI is not valid for a previous PUSCH transmission associated with HARQ ID3 based at least in part on the last symbol of the previous PUSCH transmission not being transmitted earlier than the first symbol of the reference by at least a particular amount of symbols.

[0066]

[0072] In some aspects, as shown in FIG. 4B, a previous PUSCH transmission may be configured by a configuration grant and may be transmitted with repetition. The UE may determine the validity of the DFI for the previous PUSCH transmission based at least in part on the previous PUSCH transmission being configured by a configuration grant and based at least in part on the previous PUSCH transmission being transmitted with repetition. For example, the UE may determine the validity of the DFI for the previous PUSCH transmission based at least in part on whether the last symbol of any repetition of the previous PUSCH transmission was transmitted at least a specific symbol amount earlier than the first symbol of the reference in a manner similar to that described elsewhere herein. As shown in FIG. 4B, the UE may determine that the DFI is valid for the previous PUSCH transmission based at least in part on the last symbol of at least a first repetition of the previous PUSCH transmission being transmitted at least a specific symbol amount earlier than the first symbol of the reference.

[0067]

[0073] In some aspects, as shown in FIG. 4C, a previous PUSCH transmission may be scheduled by a dynamic grant and may be transmitted with repetition. In some aspects, as also shown in FIG. 4C, the DFI may indicate an ACK. The UE may determine the validity of the DFI for the previous PUSCH transmission based at least in part on the previous PUSCH transmission being scheduled by a dynamic grant and based at least in part on the DFI indicating an ACK. For example, the UE may determine the validity of the DFI for the previous PUSCH transmission based at least in part on whether the last symbol of the first iteration of the previous PUSCH transmission was transmitted at least a specific symbol amount earlier than the first symbol of the reference in a manner similar to that described elsewhere herein. As shown in FIG. 4C, the UE may determine that the DFI is valid for the previous PUSCH transmission based at least in part on the last symbol of the first iteration of the previous PUSCH transmission being transmitted at least a specific symbol amount earlier than the first symbol of the reference.

[0068]

[0074] In some aspects, as shown in FIG. 4D, the DFI may indicate a NACK. The UE may determine the validity of the DFI for a previous PUSCH transmission based at least in part on the previous PUSCH transmission being scheduled by a dynamic grant and based at least in part on the DFI indicating a NACK. For example, the UE may determine the validity of the DFI for a previous PUSCH transmission based at least in part on whether the last symbol of the last repetition of the previous PUSCH transmission was transmitted at least a specific symbol amount earlier than the first symbol of the reference in a manner similar to that described elsewhere herein. As shown in FIG. 4D, the UE may determine that the DFI is not valid for a previous PUSCH transmission based at least in part on the last symbol of the last repetition of the previous PUSCH transmission not being transmitted at least a specific symbol amount earlier than the first symbol of the reference.

[0069]

[0075] As mentioned above, Figures 4A-4D are provided as examples, and other examples may differ from those described with respect to Figures 4A-4D.

[0070]

[0076] 5 illustrates an example process 500, performed by, for example, a mobile station, in accordance with the present disclosure. The example process 500 is an example of a mobile station (e.g., UE 120) performing operations associated with a DFI with PDCCH repetition.

[0071]

[0077] 5, in some aspects, process 500 may include receiving a set of PDCCH candidates, where the set of PDCCH candidates is linked for PDCCH repetition (block 510). For example, a mobile station (e.g., using communications manager 140 and / or receiving component 602 shown in FIG. 6) may receive a set of PDCCH candidates, where the set of PDCCH candidates is linked for PDCCH repetition, as described above.

[0072]

[0078] 5, in some aspects, process 500 may include detecting DCI carrying a DFI in one or more PDCCH candidates of the set of PDCCH candidates (block 520). For example, the mobile station (e.g., using communications manager 140 and / or detection component 608 shown in FIG. 6) may detect DCI carrying a DFI in one or more PDCCH candidates of the set of PDCCH candidates, as described above.

[0073]

[0079] 5, in some aspects, the process 500 may include identifying one PDCCH candidate of the set of PDCCH candidates as a reference PDCCH candidate based at least in part on the PDCCH candidate satisfying one or more criteria (block 530). For example, the mobile station (e.g., using the communications manager 140 and / or the identification component 610 shown in FIG. 6) may identify one PDCCH candidate of the set of PDCCH candidates as a reference PDCCH candidate based at least in part on the PDCCH candidate satisfying one or more criteria, as described above.

[0074]

[0080] 5, in some aspects, the process 500 may include determining whether feedback information for a transport block of a corresponding HARQ process number in the DFI is valid for the PUSCH transmission based at least in part on whether a last symbol of the PUSCH transmission precedes a first symbol of the reference PDCCH candidate by at least a certain amount of symbols (block 540). For example, the mobile station (e.g., using the communications manager 140 and / or the determination component 612 shown in FIG. 6) may determine whether feedback information for a transport block of a corresponding HARQ process number in the DFI is valid for the PUSCH transmission based at least in part on whether a last symbol of the PUSCH transmission precedes a first symbol of the reference PDCCH candidate by at least a certain amount of symbols, as described above.

[0075]

[0081] Process 500 may include additional aspects, such as any single aspect or any combination of aspects described below and / or in conjunction with one or more other processes described elsewhere herein.

[0076]

[0082] In a first aspect, the DCI is associated with DCI format 0_1 ​​and a CRC scrambled by the CS-RNTI, and the DFI flag of the DCI is set to a first value indicating that the DCI includes a DFI.

[0077]

[0083] In a second aspect, either alone or in combination with the first aspect, a PDCCH candidate meets one or more criteria based at least in part on the PDCCH candidate starting earliest in time relative to other PDCCH candidates in a set of PDCCH candidates.

[0078]

[0084] In a third aspect, either alone or in combination with one or more of the first and second aspects, a PDCCH candidate satisfies one or more criteria based at least in part on the PDCCH candidate starting latest in time relative to other PDCCH candidates in the set of PDCCH candidates.

[0079]

[0085] In a fourth aspect, either alone or in combination with one or more of the first to third aspects, a PDCCH candidate satisfies one or more criteria based at least in part on the PDCCH candidate finishing earliest in time relative to other PDCCH candidates in a set of PDCCH candidates.

[0080]

[0086] In a fifth aspect, either alone or in combination with one or more of the first to fourth aspects, a PDCCH candidate satisfies one or more criteria based at least in part on the PDCCH candidate finishing latest in time relative to other PDCCH candidates in the set of PDCCH candidates.

[0081]

[0087] Although Figure 5 illustrates example blocks of process 500, in some aspects process 500 may include additional blocks, fewer blocks, different blocks, or blocks arranged differently than those illustrated in Figure 5. Additionally, or alternatively, two or more of the blocks of process 500 may be performed in parallel.

[0082]

[0088] 6 is a diagram of an example apparatus 600 for wireless communication. The apparatus 600 may be or may include a mobile station. In some aspects, the apparatus 600 includes a receiving component 602 and a transmitting component 604 that may communicate with each other (e.g., via one or more buses and / or one or more other components). As shown, the apparatus 600 may communicate with another apparatus 606 (such as a UE, a base station, or another wireless communication device) using the receiving component 602 and the transmitting component 604. As further shown, the apparatus 600 may include a communications manager 140. The communications manager 140 may include one or more of a detection component 608, an identification component 610, or a determination component 612, among other examples.

[0083]

[0089] In some aspects, the device 600 may be configured to perform one or more operations described herein in conjunction with FIGS. 4A-4D. Additionally or alternatively, the device 600 may be configured to perform one or more processes described herein, such as the process 500 of FIG. 5. In some aspects, the device 600 and / or one or more components illustrated in FIG. 6 may include one or more components of a mobile station described in conjunction with FIG. 2. Additionally or alternatively, one or more components illustrated in FIG. 6 may be implemented in one or more components described in conjunction with FIG. 2. Additionally or alternatively, one or more components of the set of components may be implemented, at least in part, as software stored in a memory. For example, a component (or a portion of a component) may be implemented as instructions or code stored in a non-transitory computer-readable medium and executable by a controller or processor to perform the function or operation of the component.

[0084]

[0090] The receiving component 602 can receive communications, such as reference signals, control information, data communications, or combinations thereof, from the device 606. The receiving component 602 can provide the received communications to one or more other components of the device 600. In some aspects, the receiving component 602 can perform signal processing (such as filtering, amplifying, demodulating, analog-to-digital conversion, demultiplexing, deinterleaving, demapping, equalization, interference cancellation, or decoding, among other examples) on the received communications and can provide the processed signals to one or more other components of the device 600. In some aspects, the receiving component 602 can include one or more antennas, a modem, a demodulator, a MIMO detector, a receive processor, a controller / processor, a memory, or a combination thereof, of a mobile station as described in connection with FIG.

[0085]

[0091] The transmitting component 604 can transmit communications, such as reference signals, control information, data communications, or combinations thereof, to the device 606. In some aspects, one or more other components of the device 600 can generate communications and provide the generated communications to the transmitting component 604 for transmission to the device 606. In some aspects, the transmitting component 604 can perform signal processing (such as filtering, amplifying, modulating, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, among other examples) on the generated communications and can transmit the processed signals to the device 606. In some aspects, the transmitting component 604 can include one or more antennas, a modem, a modulator, a transmit MIMO processor, a transmit processor, a controller / processor, a memory, or a combination thereof, of a mobile station described in connection with FIG. 2. In some aspects, the transmitting component 604 can be collocated with the receiving component 602 in a transceiver.

[0086]

[0092] The receiving component 602 can receive a set of PDCCH candidates, which are linked for PDCCH repetition. The detection component 608 can detect DCI carrying a DFI in one or more PDCCH candidates of the set of PDCCH candidates. The identification component 610 can identify a PDCCH candidate of the set of PDCCH candidates as a reference PDCCH candidate based at least in part on the PDCCH candidate satisfying one or more criteria. The determination component 612 can determine whether feedback information for a transport block of a corresponding HARQ process number in the DFI is valid for the PUSCH transmission based at least in part on whether the last symbol of the PUSCH transmission precedes the first symbol of the reference PDCCH candidate by at least a certain symbol amount.

[0087]

[0093] The number and arrangement of components shown in Figure 6 are provided as one example. In practice, there may be additional components, fewer components, different components, or a different arrangement of components than those shown in Figure 6. Furthermore, two or more of the components shown in Figure 6 may be implemented within a single component, or a single component shown in Figure 6 may be implemented as multiple distributed components. Additionally, or alternatively, a set of components (or components) shown in Figure 6 may perform one or more functions that are described as being performed by another set of components shown in Figure 6.

[0088]

[0094] The following provides a summary of several aspects of the disclosure.

[0089]

[0095] Aspect 1: A method of wireless communication performed by a mobile station, the method including: receiving, by the mobile station, a set of PDCCH candidates, the set of PDCCH candidates being linked for PDCCH repetition; detecting, by the mobile station, DCI carrying a DFI in one or more PDCCH candidates of the set of PDCCH candidates; identifying, by the mobile station, one PDCCH candidate of the set of PDCCH candidates as a reference PDCCH candidate based at least in part on the PDCCH candidate satisfying one or more criteria; and determining, by the mobile station, whether feedback information for a transport block of a corresponding HARQ process number in the DFI is valid for the PUSCH transmission based at least in part on whether a last symbol of a PUSCH transmission precedes a first symbol of the reference PDCCH candidate by at least a certain symbol amount.

[0090]

[0096] Aspect 2: The method of aspect 1, wherein the DCI is associated with DCI format 0_1 ​​and a CRC scrambled by the CS-RNTI, and a DFI flag of the DCI is set to a first value indicating that the DCI includes a DFI.

[0091]

[0097] Aspect 3: One or more of the methods of aspects 1 and 2, wherein the PDCCH candidate meets one or more criteria based at least in part on the PDCCH candidate starting earliest in time relative to other PDCCH candidates in the set of PDCCH candidates.

[0092]

[0098] Aspect 4: One or more of the methods of aspects 1-3, wherein the PDCCH candidate meets one or more criteria based at least in part on the PDCCH candidate starting latest in time relative to other PDCCH candidates in the set of PDCCH candidates.

[0093]

[0099] Aspect 5: One or more of the methods of aspects 1-4, wherein the PDCCH candidate meets one or more criteria based at least in part on the PDCCH candidate finishing earliest in time relative to other PDCCH candidates in a set of PDCCH candidates.

[0094]

[0100] Aspect 6: One or more of the methods of aspects 1-5, wherein the PDCCH candidate meets one or more criteria based at least in part on the PDCCH candidate finishing latest in time relative to other PDCCH candidates in the set of PDCCH candidates.

[0095]

[0101] Aspect 7: An apparatus for wireless communication in 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 one or more of the methods of aspects 1 to 6.

[0096]

[0102] Aspect 8: A device for wireless communication, comprising: a memory; and one or more processors coupled to the memory, the one or more processors configured to perform one or more of the methods of aspects 1-6.

[0097]

[0103] Aspect 9: An apparatus for wireless communication, comprising at least one means for performing one or more of the methods of aspects 1-6.

[0098]

[0104] Aspect 10: A non-transitory computer-readable medium storing code for wireless communication, the code including instructions executable by a processor to perform one or more of the methods of aspects 1-6.

[0099]

[0105] Aspect 11: A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions including one or more instructions that, when executed by one or more processors of a device, cause the device to perform one or more of the methods of aspects 1-6.

[0100]

[0106] The above disclosure provides illustration and description, but is not intended to be exhaustive or to limit the embodiments 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 embodiments.

[0101]

[0107] As used herein, the term "component" is intended to be broadly construed as hardware and / or a combination of hardware and software. "Software" is intended to be broadly construed to mean, among other examples, instructions, instruction sets, code, code segments, program code, programs, subprograms, software modules, applications, software applications, software packages, routines, subroutines, objects, executable files, threads of execution, procedures, and / or functions, whether referred to as software, firmware, middleware, microcode, hardware description language, or otherwise. As used herein, a "processor" is implemented in hardware and / or a combination of hardware and software. It will be apparent that the systems and / or methods described herein can be implemented in various forms of hardware and / or a combination of hardware and software. The actual specialized control hardware or software code used to implement these systems and / or methods is not limiting in aspects. Thus, the operation and behavior of the systems and / or methods are described herein without reference to specific software code, with the understanding that a person skilled in the art can design software and hardware to implement the systems and / or methods based at least in part on the description herein.

[0102]

[0108] As used herein, "meeting a threshold" can 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, etc., depending on the context.

[0103]

[0109] Even if particular combinations of features are recited in a claim and / or disclosed herein, those combinations are not intended to limit the disclosure of various aspects. Many of these features can be combined in ways not specifically recited in the claims and / or disclosed herein. The disclosure of various aspects includes each dependent claim in combination with every other claim in the claim set. As used herein, 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 include a, b, c, a+b, a+c, b+c, and a+b+c, as well as any combination having multiple identical elements (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 permutation of a, b, and c).

[0104]

[0110] No element, act, or instruction used herein should be construed as essential or required unless expressly 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". Furthermore, as used herein, the article "the" is intended to include one or more items referred to in connection with the article "the" and may be used interchangeably with "one or more". Furthermore, as used herein, the terms "set" and "group" are intended to include one or more items and may be used interchangeably with "one or more". When only one item is intended, the phrase "only one" or similar language is used. Also, as used herein, terms such as "has", "have", "having" and the like are intended to be open-ended terms that do not limit the elements they modify (e.g., an element that "has" A may also have B). Moreover, the phrase "based on" is intended to mean "based at least in part on," unless otherwise specified. Also, as used herein, the term "or" when used in a series is intended to be inclusive and may be used interchangeably with "and / or," unless otherwise specified (e.g., when used in combination with "either" or "only one of").

Claims

1. 1. A method of wireless communication performed by a mobile station, comprising: transmitting a physical uplink shared channel (PUSCH); receiving, by the mobile station, downlink control information (DCI) on one or more physical downlink control channel (PDCCH) candidates of a set of PDCCH candidates, the DCI carrying downlink feedback information (DFI); the set of PDCCH candidates is linked for PDCCH repetition; The mobile station determines whether feedback information in the DFI for a transport block of a corresponding Hybrid Automatic Repeat Request (HARQ) process number is valid for the transmission of the PUSCH based at least in part on whether a last symbol of the PUSCH transmission precedes a first symbol of a PDCCH candidate in the set of PDCCH candidates by at least a particular amount of symbols; the PDCCH candidate starts earliest in time relative to other PDCCH candidates in the set of PDCCH candidates; method.

2. 2. The method of claim 1, wherein the DCI is associated with DCI format 0_1 and a cyclic redundancy check (CRC) scrambled by a configuration scheduling radio network temporary identifier (CS-RNTI), and a DFI flag of the DCI is set to a first value indicating that the DCI includes the DFI.

3. and identifying the PDCCH candidate as a reference PDCCH candidate based at least in part on the PDCCH candidate satisfying one or more criteria. The method of claim 1.

4. 4. The method of claim 3, wherein the PDCCH candidate satisfies the one or more criteria based at least in part on the PDCCH candidate starting earliest in time relative to the other PDCCH candidates in the set of PDCCH candidates.

5. A computer program comprising instructions which, when executed by a computer, cause the computer to perform steps of a method according to any one of claims 1 to 4.

6. 1. An apparatus for wireless communication, comprising: means for transmitting a physical uplink shared channel (PUSCH); means for receiving downlink control information (DCI) carrying downlink feedback information (DFI) on one or more physical downlink control channel (PDCCH) candidates of a set of PDCCH candidates; the set of PDCCH candidates is linked for PDCCH repetition; The apparatus determines whether feedback information in the DFI for a transport block of a corresponding Hybrid Automatic Repeat Request (HARQ) process number is valid for the transmission of the PUSCH based at least in part on whether a last symbol of the PUSCH transmission precedes a first symbol of a PDCCH candidate in the set of PDCCH candidates by at least a specific amount of symbols; the PDCCH candidate starts earliest in time relative to other PDCCH candidates in the set of PDCCH candidates; Device.

7. 7. The apparatus of claim 6, wherein the DCI is associated with DCI format 0_1 and a cyclic redundancy check (CRC) scrambled with a configuration scheduling radio network temporary identifier (CS-RNTI), and a DFI flag of the DCI is set to a first value indicating that the DCI includes the DFI.

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