Downlink feedback information with physical downlink control channel repetition

Abstract

In summary, the various formats disclosed herein relate to wireless communications. In some formats, the mobile station can receive a set of Physical Downlink Control Channel (PDCCH) candidates, wherein the set of PDCCH candidates is 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 the DFI is valid for Physical Uplink Shared Channel (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 number of symbols. Several other formats are described.

Description

Technical Field

[0001] In summary, this disclosure relates to wireless communications, and to techniques and apparatus for downlink feedback information (DFI) with physical downlink control channel (PDCCH) repeating. Prior Technology

[0002] Wireless communication systems are widely deployed to provide a variety of telecommunications services such as telephone, video, data, messaging, and broadcasting. Typical wireless communication systems utilize multiplexing access technologies that support communication with multiple users by sharing available system resources (e.g., bandwidth, transmit power). Examples of such multiplexing access technologies include Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single Carrier Frequency Division Multiple Access (SC-FDMA), Time Division Synchronous Code Division Multiple Access (TD-SCDMA), and Long Term Evolution (LTE). LTE / Advanced LTE is a set of enhancements to the Universal Mobile Telecommunications System (UMTS) mobile service standard released by the 3rd Generation Partnership Project (3GPP).

[0003] A wireless network may include one or more base stations that support communication between user equipment (UE) or multiple UEs. UEs may communicate with the base station via downlink and uplink communication. "Downlink" (or "DL") refers to the communication link from the base station to the UE, while "uplink" (or "UL") refers to the communication link from the UE to the base station.

[0004] The aforementioned multiplexing access technologies have been adopted in various telecommunications standards to provide common protocols enabling different UEs to communicate at the city, country, region, and / or global levels. New Radio (NR) (which may be referred to as 5G) is a set of enhancements to the LTE mobile service standard released by 3GPP. NR is designed to better support mobile broadband internet access by improving spectrum efficiency, reducing costs, improving service, using new spectrum, and better integrating with other open standards such as Orthogonal Frequency Division Multiplexing (OFDM) with Cyclic Prefix (CP) on the downlink, CP-OFDM and / or Single Carrier Frequency Division Multiplexing (SC-FDM) (also known as Discrete Fourier Transform Extended OFDM (DFT-s-OFDM)) on the uplink, and supporting beamforming, multiple-input multiple-output (MIMO) antenna technologies and carrier aggregation. Further improvements to LTE, NR, and other radio access technologies remain useful as the demand for mobile broadband access continues to increase. Summary of the Invention

[0005] This document describes some configurations relating to mobile stations used for wireless communication. The mobile station may include memory and one or more processors coupled to the memory. One or more processors may be configured to: receive a set of Physical Downlink Control Channel (PDCCH) candidates, wherein the set of PDCCH candidates is linked for PDCCH repetition. 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 within the set of PDCCH candidates. The one or more processors may be configured to: identify a PDCCH candidate in the set of PDCCH candidates as a reference PDCCH candidate, at least in part based on the PDCCH candidate satisfying one or more criteria. The one or more processors may be configured to: determine, at least in part based on whether the last symbol of the PUSCH transmission precedes the first symbol of the reference PDCCH candidate by at least a specific number of symbols, whether the feedback information in the DFI for the transmission block corresponding to the Hybrid Automatic Repeat Request (HARQ) procedure number is valid for Physical Uplink Shared Channel (PUSCH) transmission.

[0006] Some of the methods described herein relate to a method of wireless communication performed by a mobile station. The method may include: receiving a set of PDCCH candidates by the mobile station, wherein the set of PDCCH candidates is linked for PDCCH repetition. The method may include: detecting, by the mobile station, a DCI carrying a DFI in one or more PDCCH candidates within the set of PDCCH candidates. The method may include: identifying a PDCCH candidate in 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 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 specific number of symbols, whether the feedback information in the DFI for the transmission block corresponding to the HARQ procedure number is valid for the PUSCH transmission.

[0007] This document describes some types of non-transitory computer-readable media storing instruction sets for wireless communications performed by an operational station. When executed by one or more processors of the operational station, the instruction set enables the operational station to: receive a set of PDCCH candidates, wherein the set of PDCCH candidates is linked for PDCCH repetition; when executed by one or more processors of the operational station, the instruction set enables the operational station to: detect DCIs carrying DFIs in one or more PDCCH candidates within the set of PDCCH candidates; and when executed by one or more processors of the operational station, the instruction set enables the operational station to: identify a PDCCH candidate in the set of PDCCH candidates as a reference PDCCH candidate, at least in part based on the PDCCH candidate satisfying one or more criteria. When executed by one or more processors of the action station, this instruction set enables the action station to determine, at least in part, whether the feedback information in the DFI for the transport block corresponding to the HARQ procedure number is valid for the PUSCH transport based on whether the last symbol of the PUSCH transport is at least a certain number of symbols preceding the first symbol of the reference PDCCH candidate.

[0008] Some of the features described herein relate to an apparatus for wireless communication. The apparatus may include: means for receiving a set of PDCCH candidates, wherein the set of PDCCH candidates is linked for PDCCH repetition. The apparatus may include: means for detecting a DCI carrying a DFI in one or more PDCCH candidates within the set of PDCCH candidates. The apparatus may include: means for identifying a PDCCH candidate in the set of PDCCH candidates as a reference PDCCH candidate, at least in part based on the PDCCH candidate satisfying one or more criteria. The apparatus may include: means for determining whether feedback information in the DFI for the transmission block corresponding to the HARQ procedure number is valid for the PUSCH transmission, at least in part based on whether the last symbol of the PUSCH transmission precedes the first symbol of the reference PDCCH candidate by at least a specific number of symbols.

[0009] Various types generally include methods, apparatuses, systems, computer program products, non-transitory computer-readable media, user equipment, base stations, wireless communication equipment and / or processing systems as generally described herein with reference to the accompanying drawings and description.

[0010] To better understand the embodiments described below, the features and technical advantages of examples according to this disclosure have been broadly outlined above. Further features and advantages will be described below. The disclosed concepts and specific examples can be readily used as a basis for modification or design of other structures to achieve the same purpose as this disclosure. Such equivalent structures do not depart from the scope of the appended claims. The characteristics (organization and operation) and associated advantages of the concepts disclosed herein will be better understood when considered in conjunction with the accompanying drawings, based on the following description. Each of the accompanying drawings is provided for illustrative and descriptive purposes and is not intended to limit the definition of the claims.

[0011] Although various forms have been described in this disclosure by way of examples, those skilled in the art will understand that such forms can be implemented in many different arrangements and scenarios. The techniques described herein can be implemented using different platform types, devices, systems, shapes, sizes, and / or package arrangements. For example, some forms can be implemented via integrated chip embodiments or other devices based on non-modular components (e.g., end-user devices, vehicles, communication devices, computing devices, industrial equipment, retail / purchasing devices, medical devices, and / or artificial intelligence devices). Forms 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 including the described forms and features may include additional components and features for implementing and practicing the claimed and described forms. 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, adders, and / or summers) for analog and digital purposes. The intention is to implement the patterns described herein in a variety of devices, components, systems, distributed layouts and / or end-user devices of different sizes, shapes and constructions. Simple Explanation of the Diagram

[0012] To gain a more detailed understanding of the features described above, a more specific description of the brief overview provided above can be made by referring to various equivalents, some of which are shown in the accompanying drawings. However, it should be noted that the drawings only show some typical examples of the present disclosure and should not be considered as a limitation on the scope of the disclosure, as the description herein allows for other equivalent examples. Identical element symbols in different drawings may identify the same or similar elements.

[0013] Figure 1 is a diagram illustrating an example of a wireless network according to this disclosure.

[0014] Figure 2 is a diagram illustrating an example of communication between a base station and a user equipment (UE) in a wireless network according to this disclosure.

[0015] Figures 3A to 3E are diagrams illustrating example resource structures for wireless communication according to this disclosure.

[0016] Figures 4A to 4D are diagrams illustrating examples of downlink feedback information (DFI) associated with a physical downlink control channel (PDCCH) according to this disclosure.

[0017] Figure 5 is a diagram illustrating an example process associated with a DFI having a repeating PDCCH, according to this disclosure.

[0018] Figure 6 is a diagram of an example device for wireless communication according to the present disclosure. Implementation

[0019] The various forms of this disclosure are described more fully below with reference to the accompanying drawings. However, this disclosure can be implemented in many different forms and should not be construed as being limited to any particular structure or function provided throughout this disclosure. Rather, these forms are provided so that this disclosure will be thorough and complete, and will fully convey the scope of this disclosure to those skilled in the art. Those skilled in the art should understand that the scope of this disclosure is intended to cover any form of the content disclosed herein, whether implemented independently of or in combination with any other form of the content disclosed herein. For example, any number of forms set forth herein can be used to implement an apparatus or method of practice. Furthermore, the scope of this disclosure is intended to cover such apparatus or methods practiced using structures, functions, or structures and functions other than or different from the various forms of the disclosure set forth herein. It should be understood that any form of the disclosure herein can be embodied by one or more elements of the claim.

[0020] Various forms of telecommunications systems will now be presented with reference to different devices and technologies. These devices and technologies will be described in detail below and illustrated in the accompanying drawings by various blocks, modules, components, circuits, steps, processes, algorithms, etc. (collectively, "elements"). These elements can be implemented using hardware, software, or a combination thereof. Whether these elements are implemented as hardware or software depends on the specific application and the design constraints imposed on the overall system.

[0021] Although the various types of RATs may be described using terms commonly associated with 5G or New Radio (NR) Radio Access Technology (RAT), the types of RATs disclosed herein may be applied to other RATs, such as 3G RATs, 4G RATs, and / or RATs after 5G (e.g., 6G).

[0022] Figure 1 is a diagram illustrating an example of a wireless network 100 according to this disclosure. The wireless network 100 may be or may include elements of a 5G (e.g., NR) network and / or a 4G (e.g., Long Term Evolution (LTE)) network, etc. The 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 the entity that communicates with UE 120. Base station 110 (sometimes referred to as BS) may include, for example, an NR base station, an LTE base station, a Node B, an eNB (e.g., in 4G), a gNB (e.g., in 5G), an access point, and / or a transmit / receive point (TRP). Each base station 110 can provide communication coverage for a specific geographic area. In the 3GPP, depending on the context in which the term "cell" is used, the term "cell" can represent the coverage area of ​​base station 110 and / or the base station subsystem serving that coverage area.

[0023] Base station 110 can provide communication coverage for macrocells, picocells, femtocells, and / or other types of cells. Macrocells can cover a relatively large geographic area (e.g., a radius of several kilometers) and can allow unrestricted access for UEs 120 with service subscriptions. Picocells can cover a relatively small geographic area and can allow unrestricted access for UEs 120 with service subscriptions. Femtocells can cover a relatively small geographic area (e.g., a home) and can allow restricted access for UEs 120 associated with that femtocell (e.g., UEs 120 in a Closed Subscriber Group (CSG)). Base station 110 used for macrocells can be referred to as a macro base station. Base station 110 used for picocells can be referred to as a pico base station. Base station 110 used for femtocells can be referred to as a femto base station or a home base station. In the example shown in Figure 1, BS 110a can be a macro base station for macro cells 102a; BS 110b can be a pico base station for pico cells 102b; and BS 110c can be a femto base station for femto cells 102c. The base station can support one or more (e.g., three) cells.

[0024] In some instances, the cell may not necessarily be stationary, and the geographical area of ​​the cell may move depending on the location of the mobile base station 110 (e.g., the mobile base station). In some instances, the base stations 110 may be interconnected to each other and / or one or more other base stations 110 or network nodes (not shown) in the wireless network 100 via various types of backhaul interfaces (such as direct physical connections or virtual networks) using any suitable transport network.

[0025] Wireless network 100 may include one or more relay stations. A relay station is an entity that can receive data transmissions from an upstream station (e.g., base station 110 or UE 120) and send data transmissions to a downstream station (e.g., UE 120 or base station 110). A relay station may be a UE 120 that can relay transmissions for other UEs. In the example shown in Figure 1, BS 110d (e.g., a relay base station) can communicate with BS 110a (e.g., a macro base station) and UE 120d to facilitate communication between BS 110a and UE 120d. The base station 110 relaying the communication may be referred to as a relay station, relay base station, repeater, etc.

[0026] Wireless network 100 can be a heterogeneous network, including different types of base stations 110, such as macro base stations, pico base stations, femto base stations, repeater base stations, etc. These different types of base stations 110 can have different transmit power levels, different coverage areas, and / or different effects on interference in wireless network 100. For example, macro base stations can have higher transmit power levels (e.g., 5 to 40 watts), while pico base stations, femto base stations, and repeater base stations can have lower transmit power levels (e.g., 0.1 to 2 watts).

[0027] Network controller 130 can be coupled to or communicate with a group of base stations 110, and provide coordination and control for such base stations 110. Network controller 130 can communicate with base stations 110 via a backhaul communication link. Base stations 110 can communicate with each other directly or indirectly via wireless or wired backhaul communication links.

[0028] UE 120 may be distributed throughout the wireless network 100, and each UE 120 may be fixed or mobile. UE 120 may include, for example, access terminals, terminals, mobile stations, and / or user units. UE 120 may be a cellular phone (e.g., a smartphone), a personal digital assistant (PDA), a wireless modem, a wireless communication device, a handheld device, a laptop, a cordless phone, a wireless loop (WLL) station, a tablet computer, a camera, a gaming device, a netbook, a smart computer, an ultrabook, a medical device, a biometric device, a wearable device (e.g., a smartwatch, smart clothing, smart glasses, a smart wristband, smart jewelry (e.g., a smart ring or 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, industrial manufacturing equipment, a GPS device, and / or any other suitable device configured to communicate via wireless media.

[0029] Some UEs 120 can be considered Machine Type Communication (MTC) or Evolved or Enhanced Machine Type Communication (eMTC) UEs. MTC UEs and / or eMTC UEs may include, for example, robots, drones, remote devices, sensors, meters, monitors, and / or location tags capable of communicating with a base station, another device (e.g., a remote device), or some other entity. Some UEs 120 can be considered Internet of Things (IoT) devices and / or may be implemented as NB-IoT (Narrowband IoT) devices. Some UEs 120 can be considered customer premises equipment. UE 120 may be included within a housing that houses the components of UE 120, such as processor components and / or memory components. In some instances, the processor components and memory components may be coupled together. For example, the processor components (e.g., one or more processors) and memory components (e.g., memory) may be operatively coupled, communicatively coupled, electronically coupled, and / or electrically coupled.

[0030] In summary, any number of wireless networks 100 can be deployed within a given geographical area. Each wireless network 100 can support a specific RAT and can operate on one or more frequencies. A RAT can be referred to as a radio technology, air interface, etc. A frequency can be referred to as a carrier, frequency channel, etc. Each frequency can support a single RAT within a given geographical area to avoid interference between wireless networks using different RATs. In some cases, NR or 5G RAT networks can be deployed.

[0031] In some instances, two or more UEs 120 (e.g., shown as UE 120a and UE 120e) may communicate directly using one or more sidelink channels (e.g., without using base station 110 as a relay device). For example, UEs 120 may communicate using peer-to-peer (P2P) communication, device-to-device (D2D) communication, vehicle-to-everything (V2X) protocols (e.g., which may include vehicle-to-vehicle (V2V), vehicle-to-infrastructure (V2I), or vehicle-to-pedestrian (V2P) protocols), and / or mesh networks. In such instances, UEs 120 may perform scheduling operations, resource selection operations, and / or other operations described elsewhere herein that are performed by base station 110.

[0032] Devices in a wireless network 100 can communicate using the electromagnetic spectrum, which can be subdivided into various categories, bands, channels, etc., based on frequency or wavelength. For example, devices in a wireless network 100 can communicate using one or more operating frequency bands. In 5G NR, two initial operating frequency bands have been designated as frequency range names FR1 (410 MHz – 7.125 GHz) and FR2 (24.25 GHz – 52.6 GHz). It should be understood that although a portion of FR1 is greater than 6 GHz, FR1 is often referred to as the (interchangeable) "sub-6 GHz" band in various documents and articles. A similar naming issue sometimes arises for FR2, which is often (interchangeably) referred to as the "millimeter wave" band in documents and articles, although this is different from the Extremely High Frequency (EHF) band (30 GHz – 300 GHz) designated as "millimeter wave" by the International Telecommunication Union (ITU).

[0033] The frequencies between FR1 and FR2 are generally referred to as mid-band frequencies. Recent 5G NR studies have designated the operating bands of these mid-band frequencies as the frequency range name FR3 (7.125 GHz - 24.25 GHz). Bands falling within FR3 can inherit FR1 and / or FR2 characteristics, and thus can effectively extend the features of FR1 and / or FR2 to mid-band frequencies. Furthermore, higher frequency bands are currently being explored to extend 5G NR operation above 52.6 GHz. For example, three higher operating frequency bands have been designated as the frequency range names FR4a or FR4-1 (52.6 GHz - 71 GHz), FR4 (52.6 GHz - 114.25 GHz), and FR5 (114.25 GHz - 300 GHz). Each of these higher frequency bands belongs to the EHF band.

[0034] Considering the above examples, unless otherwise explicitly stated, it should be understood that the term "below 6 GHz" as used herein can broadly refer to frequencies that are less than 6 GHz, within FR1, or that may include intermediate frequency bands. Furthermore, unless otherwise explicitly stated, it should be understood that the term "millimeter wave," as used herein, can broadly refer to frequencies that may include intermediate frequency bands, are within FR2, FR4, FR4-a, or FR4-1, and / or FR5, or are within the EHF band. It is considered that frequencies included in these operating frequency bands (e.g., FR1, FR2, FR3, FR4, FR4-a, FR4-1, and / or FR5) can be modified, and the techniques described herein are applicable to such modified frequency ranges.

[0035] In some configurations, UE 120 may include a communication manager 140. As described in more detail elsewhere herein, the communication manager 140 may perform one or more operations associated with downlink feedback information (DFI) that repeats with a physical downlink control channel (PDCCH). Additionally or alternatively, the communication manager 140 may perform one or more other operations described herein.

[0036] As indicated above, Figure 1 is provided as an example. Other examples may differ from the example described for Figure 1.

[0037] Figure 2 is a diagram illustrating an example 200 of communication between base station 110 and UE 120 in wireless network 100 according to this disclosure. Base station 110 may be equipped with a set of antennas 234a to 234t, such as T antennas (T≥1). UE 120 may be equipped with a set of antennas 252a to 252r, such as R antennas (R≥1).

[0038] At base station 110, transmitting processor 220 can receive data intended for UE 120 (or a group of UE 120) from data source 212. Transmitting processor 220 can select one or more modulation and coding schemes (MCS) for UE 120 based at least in part on one or more Channel Quality Indicators (CQIs) received from UE 120. Base station 110 can process (e.g., encode and modulate) the data of UE 120 based at least in part on the MCS selected for UE 120, and can provide data symbols for UE 120. Transmitting processor 220 can process system information (e.g., semi-static resource partitioning information (SRPI)) and control information (e.g., CQI requests, permission requests, and / or upper-layer signaling), and provide management burden symbols and control symbols. Transmit processor 220 can generate reference symbols for reference signals (e.g., cell-specific reference signal (CRS) or demodulated reference signal (DMRS)) and synchronization signals (e.g., primary synchronization signal (PSS) or secondary synchronization signal (SSS)). Where applicable, transmit (TX) multiple-input multiple-output (MIMO) processor 230 can perform spatial processing (e.g., precoding) on ​​data symbols, control symbols, administrative burden symbols, and / or reference symbols, and can provide a set of output symbol streams (e.g., T output symbol streams) to a corresponding set of data transceivers 232 (e.g., T data transceivers), as shown in data transceivers 232a to 232t. For example, each output symbol stream can be provided to the modulator component (shown as MOD) of data transceiver 232. Each data transceiver 232 can use a corresponding modulator component to process the corresponding output symbol stream (e.g., for OFDM) to obtain an output sample stream. Each data transceiver 232 can also use a corresponding modulator component to process (e.g., convert to analog, amplify, filter, and / or upconvert) the output sample stream to obtain a downlink signal. Data transmitters 232a to 232t can transmit a set of downlink signals (e.g., T downlink signals) via corresponding antenna groups 234 (e.g., T antennas), shown as antennas 234a to 234t.

[0039] At UE 120, antenna group 252 (shown as antennas 252a to 252r) can receive downlink signals from base station 110 and / or other base stations 110, and can provide a set of received signals (e.g., R received signals) to a set of modems 254 (e.g., R modems), shown as modems 254a to 254r. For example, each received signal can be provided to a demodulator component (shown as DEMOD) of modem 254. Each modem 254 can use a corresponding demodulator component to modulate (e.g., filter, amplify, downconvert, and / or digitize) the received signal to obtain an input sample. Each modem 254 can use the demodulator component to further process the input sample (e.g., for OFDM) to obtain a received symbol. MIMO detector 256 can obtain the received symbols from modem 254, perform MIMO detection on the received symbols if applicable, and can provide the detected symbols. The receiver processor 258 can process (e.g., demodulate and decode) the detected symbols, provide decoded data for the UE 120 to the data slot 260, and provide decoded control and system information to the controller / processor 280. The term "controller / processor" can refer to one or more controllers, one or more processors, or a combination thereof. The channel processor can determine Reference Signal Received Power (RSRP) parameters, Received Signal Strength Indicator (RSSI) parameters, Reference Signal Received Quality (RSRQ) parameters, and / or CQI parameters, etc. In some instances, one or more components of the UE 120 may be included in the housing 284.

[0040] Network controller 130 may include communication unit 294, controller / processor 290, and memory 292. Network controller 130 may include one or more devices, such as those in a core network. Network controller 130 may communicate with base station 110 via communication unit 294.

[0041] One or more antennas (e.g., antennas 234a to 234t and / or antennas 252a to 252r) may include or be included in one or more antenna panels, one or more antenna groups, one or more groups of antenna elements and / or one or more antenna arrays, etc. Antenna panels, antenna groups, groups of antenna elements and / or antenna arrays may include one or more antenna elements (within a single housing or multiple housings), a group of coplanar antenna elements, a group 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 FIG2.

[0042] On the uplink, at UE 120, the transmitting processor 264 can receive and process data from data source 262 and control information (e.g., reports including RSRP, RSSI, RSRQ, and / or CQI) from controller / processor 280. The transmitting processor 264 can generate reference symbols for one or more reference signals. Symbols from the transmitting processor 264 may be pre-encoded by the TX MIMO processor 266, further processed by the modem 254 (e.g., for DFT-s-OFDM or CP-OFDM), and transmitted to base station 110, if applicable. In some instances, the modem 254 of UE 120 may include a modulator and demodulator. In some instances, UE 120 includes a transceiver. The transceiver may include any combination of antenna 252, modem 254, MIMO detector 256, receive processor 258, transmitting 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 any of the methods described herein (e.g., refer to Figures 4A to 4D, Figures 5 and 6).

[0043] At base station 110, uplink signals from UE 120 and / or other UEs can be received by antenna 234, processed by modem 232 (e.g., demodulator component of modem 232, shown as DEMOD), detected by MIMO detector 236 if applicable, and further processed by receiver processor 238 to obtain decoded data and control information transmitted by UE 120. Receiver processor 238 can provide decoded data to data slot 239 and decoded control information to controller / processor 240. Base station 110 may include communication unit 244 and can communicate with network controller 130 via communication unit 244. Base station 110 may include scheduler 246 for scheduling one or more UEs 120 for downlink and / or uplink communication. In some instances, modem 232 of base station 110 may include modulator and demodulator. In some instances, base station 110 includes transceiver. The transceiver may include any combination of antenna 234, modem 232, MIMO detector 236, receiver processor 238, transmitter 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 any of the methods described herein (e.g., refer to Figures 4A to 4D, Figures 5 and 6).

[0044] As described in more detail elsewhere herein, the controller / processor 240 of base station 110, the controller / processor 280 of UE 120, and / or any other component of FIG. 2 may perform one or more technologies associated with DFI having PDCCH repetition. For example, the controller / processor 240 of base station 110, the controller / processor 280 of UE 120, and / or any other component of FIG. 2 may perform or direct the operation of process 500 of FIG. 5, and / or other processes as described herein. Memory 242 and memory 282 may store data and program code for base station 110 and UE 120, respectively. In some instances, memory 242 and / or memory 282 may include non-transitory computer-readable media storing one or more instructions (e.g., code and / or program code) for wireless communication. For example, when one or more instructions are executed by one or more processors of base station 110 and / or UE 120 (e.g., directly or after compilation, translation, and / or interpretation), they can cause one or more processors, UE 120, and / or base station 110 to perform or direct the operation of, for example, process 500 of FIG. 5 and / or other processes as described herein. In some instances, the execution instructions may include run instructions, translation instructions, compilation instructions, and / or interpretation instructions, etc.

[0045] In some configurations, the mobile station (e.g., UE 120) includes: a component for receiving a set of PDCCH candidates by the mobile station, wherein the set of PDCCH candidates is linked for PDCCH repetition; a component for detecting downlink control information (DCI) carrying downlink feedback information (DFI) in one or more PDCCH candidates in the set of PDCCH candidates by the mobile station; a component for identifying a PDCCH candidate in the set of PDCCH candidates as a reference PDCCH candidate by the mobile station based at least in part on the PDCCH candidate satisfying one or more criteria; and / or a component for determining whether the feedback information in the DFI for the transmission block corresponding to the HARQ procedure number is valid for the entity uplink shared channel (PUSCH) transmission by the mobile station based at least in part on whether the last symbol of the PUSCH transmission is at least a certain number of symbols before the first symbol of the reference PDCCH candidate. In some configurations, the components used to enable the action station to perform the operations described herein may include one or more of, for example, a communication manager 140, an antenna 252, a modem 254, a MIMO detector 256, a receiver processor 258, a transmitter processor 264, a TX MIMO processor 266, a controller / processor 280, or a memory 282.

[0046] Although the blocks in Figure 2 are shown as different components, the functions described above for these blocks can be implemented in a single hardware, software, or combined component or various combinations of components. For example, the functions described for the transmit processor 264, receive processor 258, and / or TX MIMO processor 266 can be executed by or under the control of the controller / processor 280.

[0047] As indicated above, Figure 2 is provided as an example. Other examples may differ from those described with respect to Figure 2.

[0048] Figures 3A to 3E are diagrams illustrating an example resource structure 300 for wireless communication according to this disclosure. Resource structure 300 illustrates examples of various resource groups described herein. As shown, resource structure 300 may include sub-frames 305. Sub-frames 305 may include multiple time slots 310. Although resource structure 300 is shown as including two time slots per sub-frame, sub-frames may include different numbers of time slots (e.g., four, eight, sixteen, thirty-two, or another number of time slots). In some cases, different types of Transmission Time Intervals (TTIs) may be used instead of sub-frames and / or time slots. Time slots 310 may include multiple symbols 315, such as seven symbols per time slot.

[0049] The potential control region of time slot 310 may be referred to as a control resource set (CORESET) 320 and can be configured to support efficient use of resources, such as by flexibly configuring or reconfiguring the resources of CORESET 320 for one or more PDCCHs and / or one or more entity downlink shared channels (PDSCHs). In some cases, CORESET 320 may occupy the first symbol 315 of time slot 310, the first two symbols 315 of time slot 310, or the first three symbols 315 of time slot 310. Therefore, CORESET 320 may include multiple resource blocks (RBs) in the frequency domain and one, two, or three symbols 315 in the time domain. In 5G, the number of resources included in CORESET 320 can be flexibly configured, such as by using Radio Resource Control (RRC) signals to indicate the frequency domain region (e.g., the number of resource blocks) and / or time domain region (e.g., the number of symbols) for CORESET 320.

[0050] As shown in the figure, the symbol 315 including CORESET 320 may include one or more control channel elements (CCEs) 325, illustrated as two CCEs 325 spanning a portion of the system bandwidth. The CCEs 325 may include downlink control information (DCI) for providing control information for wireless communication. The base station may transmit DCI during multiple CCEs 325 (as shown), where the number of CCEs 325 used for transmitting DCI represents the aggregation level (AL) used by the base station for transmitting DCI. In Figure 3, an aggregation level of 2 is illustrated as an example, corresponding to two CCEs 325 in time slot 310. In some cases, different aggregation levels may be used, such as 1, 2, 4, 8, 16, or another aggregation level.

[0051] Each CCE 325 may include a fixed number of resource element groups (REGs) 330, shown as 6 REGs 330, or may include a variable number of REGs 330. In some configurations, the number of REGs 330 included in a CCE 325 may be specified by the REG bundle size. A REG 330 may include a resource block, which may include 12 resource elements (REs) 335 within a symbol 315. A resource element 335 may occupy one subcarrier in the frequency domain and one OFDM symbol in the time domain.

[0052] The search space can include all possible locations where the PDCCH might be located (e.g., in time and / or frequency). CORESET 320 can 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 can indicate a set of CCE locations where the UE can find a PDCCH that can potentially be used to send control information to the UE. Possible locations of the 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 the aggregation level being used. Possible locations of the PDCCH (e.g., in time and / or frequency) can be referred to as PDCCH candidates, and the set of all possible PDCCH locations at the aggregation level can be referred to as the search space. For example, the set of all possible PDCCH locations for a specific UE can be referred to as the UE-specific search space. Similarly, the set of all possible PDCCH locations across all UEs can be referred to as the common search space. The set of all possible PDCCH locations for a specific group of UEs can be referred to as the group common search space. One or more search spaces across the aggregation level can be referred to as a search space (SS) set.

[0053] In some cases, the UE may receive the DCI via a PDCCH candidate. In other 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) in which a Cyclic Redundancy Check (CRC) is scrambled by a configured Scheduled Radio Network Temporary Identifier (CS-RNTI). The DCI may include a DFI flag field. The UE may determine that the DCI includes the DFI when the DFI flag field is set to a first value (e.g., 1), and may determine that the DCI does not include the DFI when the DFI flag field is set to a second value (e.g., 0).

[0054] When the DFI flag field is set to the first value, the DFI included in the DCI may include a 16-bit bitmap indicating feedback information (e.g., Hybrid Automatic Repeat Request (HARQ) feedback information) for each identifier of the previous PUSCH transmission (e.g., for each HARQ identifier). In some cases, the UE may determine the validity of the DFI for each PUSCH transmission at least in part based on when the first symbol of the DCI including the DFI is received from the PUSCH transmission (e.g., when the DCI is sent to the UE by base station 110).

[0055] In some cases, PUSCH transmissions can be sent without repetition. PUSCH transmissions can be associated with a semi-static configuration (e.g., configured by allowances) or can be dynamically scheduled. The UE can determine that the DFI is valid for each PUSCH transmission having a last symbol sent at least a certain number of symbols prior to the first symbol of the DCI received by the UE. In some cases, the certain number of symbols can be configured by the network (e.g., base station 110 sends the DCI to the UE). For example, as shown in Figure 3B, the certain number of symbols can correspond to the configured minimum allowable DFI delay (cg-minDFI-Delay) parameter 340.

[0056] The UE may, at least in part, determine that the DFI is invalid for PUSCH transmissions associated with HARQ identifiers 3 and 4 based on the fact that the last symbol of each PUSCH transmission was not sent at least a number of symbols preceding the first symbol of the DCI including the DFI received by the UE, as indicated by the cg-minDFI-Delay parameter 340. The UE may, at least in part, determine that the DFI is valid for PUSCH transmissions associated with HARQ identifiers 0, 1, and 8 based on the fact that the last symbol of each PUSCH transmission was sent at least a number of symbols preceding the first symbol of the DCI including the DFI received by the UE, as indicated by the cg-minDFI-Delay parameter 340.

[0057] In some cases, as shown in Figure 3C, a PUSCH transmission (e.g., a PUSCH transmission associated with HARQ identifier 1, as shown) can be configured by a configuration permission and can be repeatedly transmitted. In such cases, the UE can determine that the DFI is valid for the PUSCH transmission when the last symbol of any repetition of the PUSCH transmission is transmitted at least a certain number of symbols before the first symbol of the DCI carrying the DFI received by the UE.

[0058] In some cases, as shown in Figure 3D, PUSCH transmissions (e.g., PUSCH transmissions associated with HARQ identifier 1, as shown) can be scheduled by dynamic permission and can be repeatedly transmitted. In such cases, the UE can determine that the DFI is valid for the PUSCH transmission when the DFI indicates an ACK associated with the PUSCH transmission, and the last symbol of the first repetition of the PUSCH transmission is transmitted at least a certain number of symbols before the first symbol of the DCI carrying the DFI received by the UE.

[0059] In some cases, the DFI can indicate a negative acknowledgment (NACK) associated with a PUSCH transmission. In such cases, the UE can determine that the DFI is valid for the PUSCH transmission when the last symbol of the last repetition of the PUSCH transmission is sent at least a certain number of symbols before the first symbol of the DCI carrying the DFI received by the UE. As shown in Figure 3E, the UE can determine that the DFI is invalid for the PUSCH transmission associated with HARQ identifier (ID) 1, at least in part, based on the fact that the last symbol of the last repetition of the PUSCH transmission (e.g., repetition 4, as shown) is not at least a certain number of symbols before the first symbol of the DCI carrying the DFI received by the UE.

[0060] In some cases, each PDCCH candidate can be configured repeatedly. For example, two SS sets can be linked by RRC configuration. The PDCCH candidates of the two linked SS sets can be mapped one-to-one (e.g., the first PDCCH candidate of the first SS set can be mapped to the first PDCCH candidate of the second SS set). The two PDCCH candidates mapped together can have the same aggregation level and can carry the same DCI payload.

[0061] The UE can receive two PDCCH candidates and can decode the DCI in either the first or second PDCCH candidate received by the UE, or it can perform soft combination to decode the DCI. Therefore, the UE can 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 and second PDCCH candidates received by the UE.

[0062] 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) where the CRC is scrambled by 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 a DCI included in a first PDCCH candidate, a second PDCCH candidate, or both, the first symbol of the DCI carrying the DFI may differ at least partially based on the DCI decoded by the UE. Therefore, the UE may determine different results regarding the validity of the DFI for the PUSCH transmission based at least partially on the DCI decoded by the UE.

[0063] Some of the techniques and apparatus described herein enable a UE to identify a reference used to determine whether a DFI is valid for PUSCH transmission when the UE receives a connected PDCCH candidate. In some cases, the UE may determine the reference to correspond to a DCI received via a PDCCH candidate that meets one or more criteria. By using a reference to determine whether the DFI included in the DCI is valid for PUSCH transmission, the UE can prevent, at least in part, different results based on the DCI decoded by the UE.

[0064] As indicated above, Figures 3A to 3E are provided as examples. Other examples may differ from those described for Figures 3A to 3E.

[0065] Figures 4A to 4D are diagrams illustrating instances 400, 415, 430, and 445 associated with a DFI having PDCCH repetition according to this disclosure. As shown in Figure 4A, in some cases, the UE (e.g., UE 120) may receive a set of PDCCH candidates (e.g., PDCCH candidate 405 and PDCCH candidate 410, as shown). As described elsewhere herein, PDCCH candidates may be concatenated for PDCCH repetition.

[0066] In some configurations, the UE can detect a DCI carrying a DFI in one or more of PDCCH candidates 405 and 410. In some configurations, the UE can decode PDCCH candidate 405 and detect that the DCI includes a DFI. In some configurations, the UE can decode PDCCH candidate 410 and detect that the DCI includes a DFI. In some configurations, the UE can perform soft combination to decode PDCCH candidate 405 and PDCCH candidate 410, and can detect that the DCI includes a DFI at least in part based on performing soft combination to decode PDCCH candidate 405 and PDCCH candidate 410.

[0067] In some configurations, the UE may detect DCI carrying a DFI, at least in part, based on a specific format (e.g., DCI format 0_1) that includes a CRC scrambled by CS-RNTI and a DFI flag field set to a specific value (e.g., 1). The DFI may include a 16-bit bitmap indicating feedback information (e.g., HARQ feedback information) for each identifier transmitted in the previous PUSCH (e.g., each HARQ identifier).

[0068] In some configurations, the UE can determine one or more reference criteria to determine the validity of the DFI for each PUSCH transmission. In some configurations, the reference criteria may indicate that the PDCCH candidate that starts earliest in time relative to other PDCCH candidates will be selected as the reference, the PDCCH candidate that ends earliest in time relative to other PDCCH candidates will be selected as the reference, the PDCCH candidate that starts latest in time relative to other PDCCH candidates will be selected as the reference, or the PDCCH candidate that ends latest in time relative to other PDCCH candidates will be selected as the reference, and so on.

[0069] In some configurations, 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 configurations, the UE can determine that PDCCH candidate 410 meets one or more reference criteria and can select PDCCH candidate 410 as a reference.

[0070] In some cases, as shown in Figure 4A, previous PUSCH transmissions may be transmitted without duplication. The UE can determine the validity of a DFI for a previous PUSCH transmission based at least in part on the fact that the previous PUSCH transmission was not transmitted repeatedly. For example, the UE can determine the validity of a DFI for a previous PUSCH transmission based at least in part on whether the last symbol of the previous PUSCH transmission was transmitted at least a certain number of symbols before the referenced first symbol, in a manner similar to that described elsewhere herein. As shown in Figure 4A, the UE can determine that the DFI is valid for previous PUSCH transmissions associated with HARQ IDs 8, 0, and 1 based at least in part on the fact that the last symbol of the previous PUSCH transmission was transmitted at least a certain number of symbols before the referenced first symbol. Also as shown in Figure 4A, the UE can determine that the DFI is invalid for previous PUSCH transmissions associated with HARQ ID 3 based at least in part on the fact that the last symbol of the previous PUSCH transmission was not transmitted at least a certain number of symbols before the referenced first symbol.

[0071] In some configurations, as shown in Figure 4B, previous PUSCH transmissions can be configured to be allowed and can be retransmitted. The UE can determine the validity of the DFI for a previous PUSCH transmission at least in part based on the fact that the previous PUSCH transmission is configured to be allowed and at least in part based on the fact that the previous PUSCH transmission is retransmitted. For example, the UE can determine the validity of the DFI for a previous PUSCH transmission at least in part based on whether the last symbol of any repetition of the previous PUSCH transmission was transmitted at least a certain number of symbols before the referenced first symbol, in a manner similar to that described elsewhere herein. As shown in Figure 4B, the UE can determine that the DFI is valid for a previous PUSCH transmission at least in part based on the fact that the last symbol of at least the first repetition of the previous PUSCH transmission was transmitted at least a certain number of symbols before the referenced first symbol.

[0072] In some states, as shown in Figure 4C, previous PUSCH transmissions can be scheduled by dynamic permission and can be retransmitted. In some states, also as shown in Figure 4C, the DFI can indicate ACK. The UE can determine the validity of the DFI for a previous PUSCH transmission at least in part based on the fact that the previous PUSCH transmission was dynamically permitted and at least in part based on the DFI indicating ACK. For example, the UE can determine the validity of the DFI for a previous PUSCH transmission at least in part based on whether the last symbol of the first repetition of the previous PUSCH transmission was transmitted at least a certain number of symbols before the referenced first symbol, in a manner similar to that described elsewhere herein. As shown in Figure 4C, the UE can determine that the DFI is valid for the previous PUSCH transmission at least in part based on the fact that the last symbol of the first repetition of the previous PUSCH transmission was transmitted at least a certain number of symbols before the referenced first symbol.

[0073] In some cases, as shown in Figure 4D, the DFI can indicate NACK. The UE can determine the validity of the DFI for a previous PUSCH transmission based at least in part on the dynamic allowable scheduling of the previous PUSCH transmission and at least in part on the DFI indicating NACK. For example, the UE can determine the validity of the DFI for a previous PUSCH transmission in a manner similar to that described elsewhere herein, based at least in part on whether the last symbol of the last repetition of the previous PUSCH transmission was transmitted at least a certain number of symbols before the referenced first symbol. As shown in Figure 4D, the UE can determine that the DFI is invalid for the previous PUSCH transmission based at least in part on the fact that the last symbol of the last repetition of the previous PUSCH transmission was not transmitted at least a certain number of symbols before the referenced first symbol.

[0074] As indicated above, Figures 4A through 4D are provided as examples. Other examples may differ from those described for Figures 4A through 4D.

[0075] Figure 5 is a diagram illustrating, for example, an example process 500 performed by a mobile station according to the present disclosure. Example process 500 is an instance of a mobile station (e.g., UE 120) performing an operation associated with a DFI that has a PDCCH repeating.

[0076] As shown in Figure 5, in some configurations, process 500 may include receiving a set of PDCCH candidates, wherein the set of PDCCH candidates is linked for PDCCH repetition (block 510). For example, a mobile station (e.g., using the communication manager 140 and / or receiving unit 602 depicted in Figure 6) may receive a set of PDCCH candidates, wherein the set of PDCCH candidates is linked for PDCCH repetition, as described above.

[0077] As further shown in Figure 5, in some cases, process 500 may include detecting a DCI carrying a DFI in one or more PDCCH candidates in the set of PDCCH candidates (block 520). For example, a mobile station (e.g., using the communication manager 140 and / or detection unit 608 depicted in Figure 6) may detect a DCI carrying a DFI in one or more PDCCH candidates in the set of PDCCH candidates, as described above.

[0078] As further shown in Figure 5, in some cases, process 500 may include: identifying a PDCCH candidate in 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, a mobile station (e.g., using the communication manager 140 and / or identification component 610 depicted in Figure 6) may identify a PDCCH candidate in 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.

[0079] As further shown in Figure 5, in some configurations, process 500 may include: determining, at least in part, whether feedback information in the DFI for the transmission block corresponding to the HARQ procedure number is valid for the PUSCH transmission based on whether the last symbol of the PUSCH transmission precedes the first symbol of the reference PDCCH candidate by at least a certain number of symbols (block 540). For example, a mobile station (e.g., using the communication manager 140 and / or decision component 612 depicted in Figure 6) may determine, at least in part, whether feedback information in the DFI for the transmission block corresponding to the HARQ procedure number is valid for the PUSCH transmission based on whether the last symbol of the PUSCH transmission precedes the first symbol of the reference PDCCH candidate by at least a certain number of symbols, as described above.

[0080] Process 500 may include additional states, such as any single state or any combination of states described below and / or in conjunction with one or more other processes described elsewhere herein.

[0081] In the first state, the DCI is associated with DCI format 0_1 ​​and CRC scrambled by CS-RNTI, and the DFI flag of the DCI is set to indicate that the DCI includes a first value of the DFI.

[0082] In the second state sample, either alone or in combination with the first state sample, the PDCCH candidate is at least partially based on the fact that the PDCCH candidate starts earliest in time relative to other PDCCH candidates in the set of PDCCH candidates to satisfy one or more criteria.

[0083] In the third state sample, either alone or in combination with one or more states in the first and second states, the PDCCH candidate satisfies one or more criteria at least in part based on the fact that the PDCCH candidate starts latest in time relative to other PDCCH candidates in the set of PDCCH candidates.

[0084] In the fourth state sample, either alone or in combination with one or more states from the first to the third state samples, the PDCCH candidate satisfies one or more criteria at least in part based on the fact that the PDCCH candidate ends earliest in time relative to other PDCCH candidates in the set of PDCCH candidates.

[0085] In the fifth state sample, either alone or in combination with one or more of the first to fourth state samples, the PDCCH candidate satisfies one or more criteria at least in part based on the fact that the PDCCH candidate ends latest in time relative to other PDCCH candidates in the set of PDCCH candidates.

[0086] Although Figure 5 illustrates example blocks of process 500, in some versions, process 500 may include additional blocks, fewer blocks, different blocks, or blocks arranged differently compared to those depicted in Figure 5. Additionally or alternatively, two or more blocks of process 500 may be executed concurrently.

[0087] Figure 6 is a diagram of an example device 600 for wireless communication. Device 600 may be a mobile station, or a mobile station may include device 600. In some embodiments, device 600 includes a receiving component 602 and a transmitting component 604, which can communicate with each other (e.g., via one or more buses and / or one or more other components). As shown, device 600 can use the receiving component 602 and the transmitting component 604 to communicate with another device 606 (such as a UE, base station, or another wireless communication device). As further shown, device 600 may include a communication manager 140. Communication manager 140 may include one or more of a detection component 608, an identification component 610, or a decision component 612, etc.

[0088] In some embodiments, device 600 may be configured to perform one or more operations described herein in conjunction with Figures 4A to 4D. Additionally or alternatively, device 600 may be configured to perform one or more processes described herein, such as process 500 of Figure 5. In some embodiments, device 600 and / or one or more components shown in Figure 6 may include one or more components of the mobile station described in conjunction with Figure 2. Additionally or alternatively, one or more components shown in Figure 6 may be implemented within one or more components described in conjunction with Figure 2. Additionally or alternatively, one or more components in this set of components may be at least partially implemented as software stored in memory. For example, a component (or a portion of a component) may be implemented as instructions or code stored in a non-transitory computer-readable medium and executable by a controller or processor to perform the function or operation of the component.

[0089] Receiver 602 may receive communications from device 606, such as reference signals, control information, data communications, or combinations thereof. Receiver 602 may provide the received communications to one or more other components of device 600. In some embodiments, receiver 602 may perform signal processing on the received communications (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, demapping, equalization, interference cancellation, or decoding, etc.), and may provide the processed signal to one or more other components of device 600. In some embodiments, receiver 602 may include one or more antennas, modems, demodulators, MIMO detectors, receiver processors, controllers / processors, memory, or combinations thereof from the mobile station described in conjunction with FIG. 2.

[0090] Transmitting component 604 can transmit communications, such as reference signals, control information, data communications, or combinations thereof, to device 606. In some embodiments, one or more other components of device 600 can generate communications and provide the generated communications to transmitting component 604 for transmission to device 606. In some embodiments, transmitting component 604 can perform signal processing on the generated communications (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, etc.) and can transmit the processed signals to device 606. In some embodiments, transmitting component 604 may include one or more antennas, modems, modulators, transmit MIMO processors, transmit processors, controllers / processors, memory, or combinations thereof from the mobile station described in conjunction with FIG. 2. In some embodiments, transmitting component 604 may be co-located with receiving component 602 in a transceiver.

[0091] The receiving unit 602 can receive a set of PDCCH candidates, wherein the set of PDCCH candidates is linked for PDCCH repetition. The detection unit 608 can detect DCIs carrying DFIs in one or more PDCCH candidates in the set of PDCCH candidates. The identification unit 610 can identify a PDCCH candidate in 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 determining unit 612 can determine whether the feedback information in the DFI for the transmission block corresponding to the HARQ procedure number is valid for the PUSCH transmission based at least in part on whether the last symbol of the PUSCH transmission is at least a certain number of symbols before the first symbol of the reference PDCCH candidate.

[0092] The number and arrangement of components shown in Figure 6 are provided as examples. In practice, compared to the components shown in Figure 6, there may be additional components, fewer components, different components, or components arranged in a different manner. Furthermore, two or more components shown in Figure 6 can be implemented within a single component, or the single component shown in Figure 6 can be implemented as multiple, distributed components. Additionally or alternatively, a group (one or more) of components shown in Figure 6 can perform one or more functions described as being performed by another group of components shown in Figure 6.

[0093] The following provides an overview of some aspects of the content of this disclosure:

[0094] Sample 1: A method of wireless communication performed by a mobile station, comprising: receiving a set of PDCCH candidates by the mobile station, wherein the set of PDCCH candidates is linked for PDCCH repetition; detecting, by the mobile station, a DCI carrying a DFI in one or more PDCCH candidates in the set of PDCCH candidates; identifying, by the mobile station, a PDCCH candidate in 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 in the DFI for a transmission block corresponding to a HARQ procedure number is valid for the PUSCH transmission based at least in part on whether the last symbol of the PUSCH transmission is at least a certain number of symbols before the first symbol of the reference PDCCH candidate.

[0095] State 2: The method is as described in State 1, wherein the DCI is associated with DCI format 0_1 ​​and CRC scrambled by CS-RNTI, and wherein the DFI flag of the DCI is set to indicate that the DCI includes a first value of the DFI.

[0096] State 3: The method of one or more states such as State 1 and State 2, wherein the PDCCH candidate satisfies the one or more criteria at least in part based on the fact that the PDCCH candidate starts earliest in time relative to other PDCCH candidates in the set of PDCCH candidates.

[0097] State 4: The method of one or more states of states 1 to 3, wherein the PDCCH candidate satisfies the one or more criteria at least in part based on the fact that the PDCCH candidate starts latest in time relative to other PDCCH candidates in the set of PDCCH candidates.

[0098] State 5: The method of one or more states of states 1 to 4, wherein the PDCCH candidate satisfies the one or more criteria at least in part based on the fact that the PDCCH candidate ends earliest in time relative to other PDCCH candidates in the set of PDCCH candidates.

[0099] State 6: The method according to one or more of the states 1 to 5, wherein the PDCCH candidate satisfies the one or more criteria at least in part based on the fact that the PDCCH candidate ends latest in time relative to other PDCCH candidates in the set of PDCCH candidates.

[0100] State 7: An apparatus for wireless communication at a device, comprising a processor; memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform the method described in one or more of states 1 to 6.

[0101] State 8: A device for wireless communication, including a memory and one or more processors coupled to the memory, the one or more processors being configured to perform the method described in one or more of the states 1 to 6.

[0102] State 9: An apparatus for wireless communication, comprising at least one component for performing the method as described in one or more of States 1 to States 6.

[0103] Format 10: A non-transitory computer-readable medium storing code for wireless communication, the code including instructions executable by a processor to perform the methods described in one or more of formats 1 to 6.

[0104] Sample 11: A non-transitory computer-readable medium storing an instruction set for wireless communication, the instruction set including one or more instructions that, when executed by one or more processors of a device, cause the device to perform the method described in one or more of the samples 1 to 6.

[0105] The foregoing disclosure provides explanation and description but is not intended to be exhaustive or to limit the various forms to the exact forms disclosed. Modifications and changes can be made based on the foregoing disclosure, or modifications and changes can be derived from the practice of such forms.

[0106] As used herein, the term "component" is intended to be interpreted broadly as hardware and / or a combination of hardware and software. Whether referred to as software, firmware, intermediary software, microcode, hardware description language, or other names, "software" should be interpreted broadly as instructions, instruction sets, code, code fragments, program code, program, subroutine, software module, application, software application, software suite, convention, subconvention, object, executable file, executable thread, program, and / or function, etc. As used herein, a "processor" is implemented in hardware and / or a combination of hardware and software. It is evident that the systems and / or methods described herein can be implemented in various forms of hardware and / or combinations of hardware and software. The actual dedicated control hardware or software code used to implement such systems and / or methods is not a limitation on this type of implementation. Because those skilled in the art will understand that software and hardware can be designed to implement systems and / or methods at least in part based on the descriptions herein, the operation and behavior of systems and / or methods are described herein without reference to specific software code.

[0107] As used in this article, "meeting the threshold" can represent the following values ​​depending on the context: 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.

[0108] Although specific combinations of features are listed in the claims and / or disclosed in the specification, such combinations are not intended to limit the disclosure of each variant. Many of these features can be combined in ways not specifically listed in the claims and / or disclosed in the specification. The disclosure of each variant includes each dependent claim in combination with each other claim in the claim set. As used herein, the phrase “at least one” in the list of items refers to any combination of those items, including a single member. 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 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 ordering of a, b, and c).

[0109] Unless explicitly stated otherwise, no element, action, or instruction used herein should be construed as essential or necessary. Furthermore, as used herein, the articles “a” and “one” are intended to include one or more items and can be used interchangeably with “one or more.” Additionally, as used herein, the article “the” is intended to include one or more items referenced in conjunction with the article “the” and can 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 can be used interchangeably with “one or more.” In cases where only one item is intended, the phrase “only one” or similar language is used. Moreover, as used herein, the terms “has,” “have,” “having,” or similar expressions are intended to be open-ended terms that do not limit the elements to which they are modified (e.g., an element “having” A can also have B). Furthermore, unless explicitly stated otherwise, the phrase “based on” is intended to mean “at least partially based on.” Furthermore, as used herein, the term "or" is intended to be inclusive when used in a serial form unless otherwise expressly stated (e.g., when combined with "either" or "only one"), and may be used interchangeably with "and / or".

[0110] 100: Wireless Network 102a: Macrocell 102b: microcell 102c: femtocellular 110:Base station 110a:BS 110b:BS 110c:BS 110d:BS 120:UE 120a:UE 120b:UE 120c:UE 120d:UE 120e:UE 130: Network Controller 140: Communication Manager 200: Examples 212: Source 220: Sending Processor 230: Transmit (TX) Multiple-Input Multiple-Output (MIMO) Processor 232a: Modem 232t: Modem 234a: Antenna 234t: Antenna 236: MIMO Detector 238: Receiver Processor 239: Data Slot 240: Controller / Processor 242: Memory 244: Communication Unit 246: Scheduler 252a: Antenna 252r: Antenna 254a: Modem 254r: Modem 256: MIMO Detector 258: Receiver Processor 260: Data Slot 262: Source 264: Send Processor 266:TX MIMO processor 280: Controller / Processor 282: Memory 284: Casing 290: Controller / Processor 292: Memory 294: Communication Unit 300: Resource Structure 305: Subframe 310: Time Slot 315: Symbol 320: Control Resource Set (CORESET) 325: Control Channel Element (CCE) 330: Resource Element Group (REG) 335: Resource Elements (RE) 340: Minimum Allowable DFI Delay (cg-minDFI-Delay) parameter 400: Instance 405: PDCCH Candidate 410: PDCCH Candidate 415: Example 430: Example 445: Example 500: Process 510: Square 520: Square 530: Square 540: Square 600: Device 602: Receiver 604: Sending component 606: Device 608: Detection Component 610: Identification Components 612: Determine the component

[0111] Domestic storage information (please note in order of storage institution, date, and number) none Overseas storage information (please note in the order of storage country, institution, date, and number) none

Claims

1. A mobile station for wireless communication, comprising: One or more memory modules; And one or more processors, individually or collectively coupled to the one or more memories, and configured, at least in part based on information stored in the one or more memories, to perform the following operations: transmit an Entity Uplink Shared Channel (PUSCH); and receive Downlink Control Information (DCI) carrying Downlink Feedback Information (DFI) in one or more PDCCH candidates from a set of Entity Downlink Control Channel (PDCCH) candidates, wherein the set of PDCCH candidates is linked for PDCCH repetition; and wherein the mobile station determines, at least in part based on whether the last symbol of a transmission of the PUSCH is at least a certain number of symbols preceding a first symbol of a PDCCH candidate in the set of PDCCH candidates, whether the feedback information in the DFI for a transmission block corresponding to a Hybrid Automatic Repeat Request (HARQ) procedure number is valid for the transmission of the PUSCH, wherein at least one of the following is true: The PDCCH candidate starts earliest in time relative to other PDCCH candidates in the set of PDCCH candidates; or the PDCCH candidate ends latest in time relative to other PDCCH candidates in the set of PDCCH candidates.

2. The action station as described in claim 1, wherein the DCI is associated with a DCI format 0_1 ​​and a cyclic redundancy check (CRC) scrambled by a configured scheduled radio network temporary identifier (CS-RNTI), and wherein a DFI flag field of the DCI is set to indicate that the DCI includes a first value of the DFI.

3. The action station as described in claim 1, wherein the PDCCH candidate starts earliest in time relative to other PDCCH candidates in the set of PDCCH candidates.

4. The action station as described in claim 1, wherein the PDCCH candidate starts latest in time relative to other PDCCH candidates in the set of PDCCH candidates.

5. The action station as described in claim 1, wherein the PDCCH candidate ends earliest in time relative to other PDCCH candidates in the set of PDCCH candidates.

6. The action station as described in claim 1, wherein the PDCCH candidate ends latest in time relative to other PDCCH candidates in the set of PDCCH candidates.

7. The action station as described in claim 1, wherein the one or more processors are further configured to perform the following operations: identify the PDCCH candidate as a reference PDCCH candidate based at least in part on the PDCCH candidate satisfying one or more criteria.

8. The action station as described in claim 7, wherein the PDCCH candidate satisfies one or more criteria at least in part based on the fact that the PDCCH candidate starts earliest in time relative to the other PDCCH candidates in the set of PDCCH candidates.

9. A method of wireless communication performed by a mobile station, comprising the steps of: transmitting an entity uplink shared channel (PUSCH); and receiving downlink control information (DCI) carrying downlink feedback information (DFI) in one or more PDCCH candidates in a set of entity downlink control channel (PDCCH) candidates, wherein the set of PDCCH candidates is linked for PDCCH repetition; and wherein the mobile station determines, at least in part, whether the feedback information in the DFI for a transmission block corresponding to a Hybrid Automatic Repeat Request (HARQ) procedure number is valid for the transmission of the PUSCH based on whether the last symbol of a transmission of the PUSCH precedes a first symbol of a PDCCH candidate in the set of PDCCH candidates by at least a specific number of symbols, wherein at least one of the following is true: the PDCCH candidate starts earliest in time relative to other PDCCH candidates in the set of PDCCH candidates; or the PDCCH candidate ends latest in time relative to other PDCCH candidates in the set of PDCCH candidates.

10. The method of claim 9, wherein the DCI is associated with a DCI format 0_1 ​​and a cyclic redundancy check (CRC) scrambled by a configured scheduled radio network temporary identifier (CS-RNTI), and wherein a DFI flag of the DCI is set to indicate that the DCI includes a first value of the DFI.

11. The method of claim 9, wherein the PDCCH candidate starts earliest in time relative to other PDCCH candidates in the set of PDCCH candidates.

12. The method of claim 9, wherein the PDCCH candidate starts latest in time relative to other PDCCH candidates in the set of PDCCH candidates.

13. The method of claim 9, wherein the PDCCH candidate ends earliest in time relative to other PDCCH candidates in the set of PDCCH candidates.

14. The method of claim 9, wherein the PDCCH candidate ends latest in time relative to other PDCCH candidates in the set of PDCCH candidates.

15. The method of claim 9 further includes the step of: identifying the PDCCH candidate as a reference PDCCH candidate based at least in part on the PDCCH candidate meeting one or more criteria.

16. The method of claim 15, wherein the PDCCH candidate satisfies one or more criteria at least in part based on the fact that the PDCCH candidate starts earliest in time relative to the other PDCCH candidates in the set of PDCCH candidates.

17. A non-transitory computer-readable medium storing an instruction set for wireless communication, the instruction set comprising: One or more instructions, when executed by one or more processors of an action station, cause the action station to perform the following operations: transmit an entity uplink shared channel (PUSCH); and receive downlink control information (DCI) carrying downlink feedback information (DFI) in one or more PDCCH candidates in a set of entity downlink control channel (PDCCH) candidates, wherein the set of PDCCH candidates is linked for PDCCH repetition; and wherein the action station determines, at least in part, whether the feedback information in the DFI for a transmission block corresponding to a Hybrid Automatic Repeat Request (HARQ) procedure number is valid for the transmission of the PUSCH based on whether the last symbol of a transmission of the PUSCH precedes a first symbol of a PDCCH candidate in the set of PDCCH candidates by at least a specific number of symbols, wherein at least one of the following is true: the PDCCH candidate starts earliest in time relative to other PDCCH candidates in the set of PDCCH candidates; or the PDCCH candidate ends latest in time relative to other PDCCH candidates in the set of PDCCH candidates.

18. The non-transitory computer-readable medium as claimed in claim 17, wherein the DCI is associated with a DCI format 0_1 ​​and a cyclic redundancy check (CRC) scrambled by a configured scheduled radio network temporary identifier (CS-RNTI), and wherein a DFI flag of the DCI is set to indicate that the DCI includes a first value of the DFI.

19. The non-transitory computer-readable medium as described in claim 17, wherein the PDCCH candidate is the earliest in time relative to other PDCCH candidates in the set of PDCCH candidates.

20. The non-transitory computer-readable medium as described in claim 17, wherein the PDCCH candidate starts latest in time relative to other PDCCH candidates in the set of PDCCH candidates.

21. The non-transitory computer-readable medium as described in claim 17, wherein the PDCCH candidate ends earliest in time relative to other PDCCH candidates in the set of PDCCH candidates.

22. The non-transitory computer-readable medium as described in claim 17, wherein the PDCCH candidate ends latest in time relative to other PDCCH candidates in the set of PDCCH candidates.

23. The non-transitory computer-readable medium as claimed in claim 17, wherein the one or more instructions, when executed by one or more processors of an action station, further cause the action station to perform the following operations: identify the PDCCH candidate as a reference PDCCH candidate based at least in part on the PDCCH candidate satisfying one or more criteria.

24. The non-transitory computer-readable medium as claimed in claim 23, wherein the PDCCH candidate satisfies one or more criteria at least in part based on the fact that the PDCCH candidate starts earliest in time relative to the other PDCCH candidates in the set of PDCCH candidates.

25. An apparatus for wireless communication, comprising: Components used to send an entity's uplink shared channel (PUSCH); And a component for receiving downlink control information (DCI) carrying downlink feedback information (DFI) in one or more PDCCH candidates in a set of physical downlink control channel (PDCCH) candidates, wherein the set of PDCCH candidates is linked for PDCCH repetition; and wherein the device determines, at least in part, whether the feedback information in the DFI for a transmission block corresponding to a Hybrid Automatic Repeat Request (HARQ) procedure number is valid for the transmission of the PUSCH based on whether the last symbol of a transmission of the PUSCH precedes a first symbol of a PDCCH candidate in the set of PDCCH candidates by at least a specific number of symbols, wherein at least one of the following is true: the PDCCH candidate starts earliest in time relative to other PDCCH candidates in the set of PDCCH candidates; or the PDCCH candidate ends latest in time relative to other PDCCH candidates in the set of PDCCH candidates.

26. The apparatus of claim 25, wherein the DCI is associated with a DCI format 0_1 ​​and a cyclic redundancy check (CRC) scrambled by a configured scheduled radio network temporary identifier (CS-RNTI), and wherein a DFI flag of the DCI is set to indicate that the DCI includes a first value of the DFI.

27. The apparatus of claim 25, wherein the PDCCH candidate starts latest in time relative to other PDCCH candidates in the set of PDCCH candidates.

28. The apparatus of claim 25, wherein the PDCCH candidate starts earliest in time relative to other PDCCH candidates in the set of PDCCH candidates.

29. The apparatus of claim 25, wherein the PDCCH candidate ends earliest in time relative to other PDCCH candidates in the set of PDCCH candidates.

30. The apparatus of claim 25, wherein the PDCCH candidate ends latest in time relative to other PDCCH candidates in the set of PDCCH candidates.

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