Techniques for providing a dedicated demodulation reference signal for transmission repetition

Abstract

Various aspects described herein relate to providing demodulation reference signal (DMRS) transmissions for channel transmission repetitions. This may include defining DMRS patterns for channel transmission repetitions with symbol lengths less than a threshold, dropping or delaying channel transmission repetitions that map to uplink symbol sets with symbol lengths less than the threshold, and more.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This patent application claims priority to provisional patent application No. 63 / 077,399, filed on September 11, 2020, entitled “Techniques for ProvidingDedicated demodulation reference signals for Transmission Repetitions,” and U.S. patent application No. 17 / 471,075, filed on September 9, 2021, entitled “TECHNIQUES FOR PROVIDINGDEDICATED DEMODULATION REFERENCE SIGNALS FOR TRANSMISSION REPETITIONS,” both of which have been assigned to the assignee of this application, and their entire contents are expressly incorporated herein by reference. Technical Field

[0003]

[0004] Aspects of the present disclosure generally relate to wireless communication systems, and more particularly, to transmitting channel transmission repetitions and associated demodulation reference signals. Background Art

[0004] Wireless communication systems are widely deployed to provide various types of communication content, such as voice, video, packet data, messaging, broadcast, and the like. These systems may be multiple-access systems capable of supporting communication with multiple users by sharing available system resources (e.g., time, frequency, and power). Examples of such multiple-access systems 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, and single-carrier frequency division multiple access (SC-FDMA) systems.

[0005] These multiple access technologies have been adopted in various telecommunication standards to provide a common protocol that enables different wireless devices to communicate on a city-wide, national-wide, regional-wide, and even global scale. For example, the fifth generation (5G) wireless communication technology, which may be referred to as 5G New Radio (5G NR), is envisioned to extend and support various usage scenarios and applications over the current mobile network generation. In one aspect, 5G communication technologies may include: enhanced mobile broadband to address the use case of human-centric access to multimedia content, services, and data; ultra-reliable low-latency communication (URLLC) with specifications for latency and reliability; and massive machine-type communication, which may allow a very large number of connected devices to transmit relatively small amounts of non-latency-sensitive information.

[0006] In NR, user equipment (UE) can be configured to send repetitions of channel transmissions to increase the likelihood that the transmission will be received by the base station or another UE. 5G NR defines Physical Uplink Shared Channel (PUSCH) repetition type A, where a repetition number K>1 can be configured to apply the same start and length indicator value (SLIV) across K consecutive slots, so that repetitions in a given slot start at the same symbol offset and with the same symbol length. 5G NR also defines PUSCH repetition type B, where repetitions can be within and / or across slots, across slot boundaries, with dynamically indicated repetition numbers, with nominal inter-PUSCH frequency hopping, with new uplink / downlink symbol interworking, with new SLIVs, and more. PUSCH repetition type B can be defined with K nominal repetitions (each with a nominal length L), where repetitions can be sent back-to-back (e.g., in consecutive symbols) starting from symbol S, where S and L are given by the SLIV. Summary of the Invention

[0007] To provide a basic understanding of one or more aspects of the present invention, a brief summary of these aspects is provided below. This summary is not an exhaustive overview of all contemplated aspects, nor is it intended to identify key or important elements of all aspects, or to describe the scope of any or all aspects. Its sole purpose is to present some concepts of one or more aspects in a simplified form as a prelude to the detailed description that follows.

[0008] According to one aspect, an apparatus for wireless communication is provided, the apparatus comprising a transceiver, a memory configured to store instructions, and one or more processors communicatively coupled to the memory and the transceiver. The one or more processors are configured to: receive a configuration indicating a number of symbols for transmitting a plurality of uplink channel transmission repetitions in one or more time slots; and wherein, based on the configuration and a time slot configuration of the one or more time slots, a symbol length for one of the plurality of uplink channel transmission repetitions in a first time slot is less than four symbols, at least one of: delaying transmission of at least a portion of the one of the plurality of uplink channel transmission repetitions; or transmitting the at least a portion of the one of the plurality of uplink channel transmission repetitions in a super uplink time slot.

[0009] In another aspect, an apparatus for wireless communication is provided, the apparatus comprising a transceiver, a memory configured to store instructions, and one or more processors communicatively coupled to the memory and the transceiver. The one or more processors are configured to: generate a demodulation reference signal (DMRS) pattern for transmitting a demodulation reference signal (DMRS) using an uplink channel transmission repetition in a given time slot based on a symbol length for the uplink channel transmission repetition being less than four symbols; and transmit the uplink channel transmission repetition based on the DMRS pattern.

[0010] On the other hand, a method for wireless communication is provided, the method comprising: receiving a configuration indicating the number of symbols for sending multiple uplink channel transmission repetitions in one or more time slots; and wherein, based on the configuration and the time slot configuration of the one or more time slots, the symbol length of one uplink channel transmission repetition in the first time slot for the multiple uplink channel transmission repetitions is less than four symbols, performing at least one of the following: delaying the sending of at least a portion of the one uplink channel transmission repetition in the multiple uplink channel transmission repetitions; or sending at least a portion of the one uplink channel transmission repetition in the multiple uplink channel transmission repetitions in a super uplink time slot.

[0011] On the other hand, a method for wireless communication is provided, the method comprising: generating a DMRS pattern for sending DMRS using the uplink channel transmission repetition based on the symbol length for the uplink channel transmission repetition in a given time slot being less than four symbols; and sending the uplink channel transmission repetition based on the DMRS pattern.

[0012] According to one aspect, a method for wireless communication is provided. The method includes: determining that a symbol length for uplink channel transmission repetitions is less than four symbols; determining, based on the symbol length, a DMRS pattern for transmitting a DMRS using the uplink channel transmission repetitions; and transmitting the uplink channel transmission repetitions based on the DMRS pattern.

[0013] According to another aspect, a method of wireless communication is provided. The method includes receiving a configuration indicating a number of symbols for transmitting a plurality of uplink channel transmission repetitions in one or more time slots; determining, based on the configuration and a time slot configuration of the one or more time slots, that a symbol length for the uplink channel transmission repetitions is less than four symbols; and refraining from transmitting the uplink channel transmission repetitions based on determining that the symbol length is less than four symbols.

[0014] According to another aspect, a method for wireless communication is provided, the method comprising: receiving a configuration indicating the number of symbols for sending multiple uplink channel transmission repetitions in one or more time slots; determining, based on the configuration and the time slot configuration of the one or more time slots, that the symbol length for uplink channel transmission repetitions in a first time slot is less than four symbols, and based on determining that the symbol length is less than four symbols, performing at least one of the following: delaying sending at least a portion of the uplink channel transmission repetitions; or sending at least a portion of the uplink channel transmission repetitions in a super uplink time slot.

[0015] According to another aspect, a method for wireless communication is provided, the method comprising: sending a first configuration indicating the number of symbols used for multiple uplink channel transmission repetitions in one or more time slots; sending a second configuration for determining one or more parameters for sending symbols for uplink channel transmission repetitions when the symbol length of the uplink channel transmission repetitions is determined to be less than four symbols; and receiving the uplink channel transmission repetitions based on the first configuration and the second configuration.

[0016] In another example, an apparatus for wireless communication is provided, the apparatus comprising a transceiver, a memory configured to store instructions, and one or more processors communicatively coupled to the transceiver and the memory. The one or more processors are configured to execute the instructions to perform the operations of the methods described herein. In another aspect, an apparatus for wireless communication is provided, the apparatus comprising means for performing the operations of the methods described herein. In another aspect, a computer-readable medium is provided, the computer-readable medium comprising code executable by one or more processors to perform the operations of the methods described herein.

[0017] To accomplish the foregoing and related ends, one or more aspects comprise the features fully described below and particularly pointed out in the claims. The following description and the accompanying drawings describe in detail certain exemplary features of the one or more aspects. However, these features are merely illustrative of the various ways in which the principles of these various aspects may be employed, and this description is intended to include all such aspects and their equivalents. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The disclosed aspects of the present invention are described below in conjunction with the accompanying drawings, which are provided to illustrate and not to limit the disclosed aspects, wherein like reference numerals represent like elements, and wherein:

[0019] Figure 1 According to various aspects of the present disclosure, an example of a wireless communication system is shown;

[0020] Figure 2 is a block diagram illustrating an example of a UE according to various aspects of the present disclosure;

[0021] Figure 3 is a block diagram illustrating an example of a base station according to various aspects of the present disclosure;

[0022] Figure 4 is a flow chart illustrating an example of a method for defining a demodulation reference signal (DMRS) pattern for channel transmission repetition according to various aspects of the present disclosure;

[0023] Figure 5 is a flow chart illustrating an example of a method for discarding channel transmission duplications according to various aspects of the present disclosure;

[0024] Figure 6 is a flow chart illustrating an example of a method for delaying channel transmission repetitions or sending channel transmission repetitions in superslots according to various aspects of the present disclosure;

[0025] Figure 7 is a flow chart illustrating an example of a method for configuring a device to perform channel transmission repetition according to various aspects of the present disclosure;

[0026] Figure 8 is an example showing a timeline for sending an initial channel transmission and channel transmission repetitions according to various aspects of the present disclosure; and

[0027] Figure 9 is a block diagram illustrating an example of a MIMO communication system including a base station and UEs according to various aspects of the present disclosure. DETAILED DESCRIPTION

[0028] Various aspects will now be described with reference to the accompanying drawings. In the following description, for purposes of illustration, numerous specific details are described in order to provide a thorough understanding of one or more aspects. However, it will be apparent that such aspects may be practiced without these specific details.

[0029] The described features generally relate to providing a demodulation reference signal (DMRS) for channel transmission repetitions. In fifth generation (5G) New Radio (NR), channel transmission repetitions may be defined, where a device may transmit a channel and then may transmit one or more repetitions of the channel. The device may send the repetitions based on defined parameters that indicate a starting symbol for transmission of the repetitions (e.g., an orthogonal frequency division multiplexing (OFDM) symbol) and the length of the repetitions (in symbols). In 5G NR, the slot structure may define the symbol directions for multiple symbols in a slot. In some examples, the slot structure may not allow consecutive symbols to be used for the length of the repetition (e.g., where consecutive symbols have one or more symbols defined for different communication directions), which may result in transmitting at least a portion of the repetitions that is less than a specific symbol length. In 5G NR, the DMRS pattern may not be designed for transmissions that are less than a specific symbol length (e.g., less than four symbols). Various aspects described herein relate to providing DMRS for channel transmission repetition by defining a DMRS pattern for transmissions less than a specific symbol length and / or by ensuring that the channel transmission repetition has a symbol length that is at least a specific symbol length (e.g., at least four symbols) with a defined DMRS pattern.

[0030] For example, a DMRS pattern can be defined for channel transmission repetitions with a symbol length of less than four symbols, so that DMRS is allowed to be transmitted together with the channel transmission repetitions. In another example, channel transmission repetitions exceeding less than four symbols can be discarded or delayed to other symbol sets of at least four symbols in length. In yet another example, a symbol set can be selected for sending channel transmission repetitions, which may include a superslot formed by a set of consecutive symbols across time slot boundaries, or may include a non-continuous symbol set with symbols of different directions in between. In this example, channel transmission repetitions can be scheduled in a superslot or in a non-continuous symbol set together with an associated DMRS or DMRS pattern, which is based on the symbol length of the superslot or non-continuous symbol set. In any case, DMRS can be sent with channel transmission repetitions to improve its demodulation and decoding, which can improve the throughput and reliability of communications.

[0031] Refer to the following Figure 1-9 Let's give the described features in more detail.

[0032] As used in this application, the terms "component", "module", "system", etc. are intended to include computer-related entities such as, but not limited to, hardware, firmware, a combination of hardware and software, or software in operation. For example, a component can be, but not limited to, a process running on a processor, a processor, an object, an executable file, a thread of execution, a program, and / or a computer. For example, both an application running on a computing device and the computing device can be components. One or more components can exist in a process and / or thread of execution, and a component can be located in a computer and / or distributed between two or more computers. In addition, these components can be executed from various computer-readable media having various data structures stored thereon. These components can communicate in the form of local and / or remote processes, such as based on signals having one or more data packets (e.g., data from a component that interacts with another component in a local system, a distributed system, and / or interacts with other systems in the form of signals over a network such as the Internet).

[0033] The techniques described herein can be used in various wireless communication systems, such as CDMA, TDMA, FDMA, OFDMA, SC-FDMA, and other systems. The terms "system" and "network" are often used interchangeably. A CDMA system can implement radio technologies such as CDMA2000, Universal Terrestrial Radio Access (UTRA), and the like. CDMA2000 covers IS-2000, IS-95, and IS-856 standards. IS-2000 versions 0 and A are commonly referred to as CDMA2000 1X, 1X, and the like. IS-856 (TIA-856) is commonly referred to as CDMA2000 1xEV-DO, High Rate Packet Data (HRPD), and the like. UTRA includes Wideband CDMA (WCDMA) and other variations of CDMA. A TDMA system can implement radio technologies such as Global System for Mobile Communications (GSM). OFDMA systems can implement radio technologies such as Ultra Mobile Broadband (UMB), Evolved UTRA (E-UTRA), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash-OFDM™, and the like. UTRA and E-UTRA are part of the Universal Mobile Telecommunications System (UMTS). 3GPP Long Term Evolution (LTE) and LTE-Advanced (LTE-A) are new releases of UMTS that use E-UTRA. UTRA, E-UTRA, UMTS, LTE, LTE-A, and GSM are described in documents from an organization called the "3rd Generation Partnership Project" (3GPP). CDMA2000 and UMB are described in documents from an organization called the "3rd Generation Partnership Project 2" (3GPP2). The techniques described herein can be used for the systems and radio technologies mentioned above, as well as other systems and radio technologies, including cellular (e.g., LTE) communications over shared radio spectrum bands. However, the following description describes an LTE / LTE-A system for example purposes only, and LTE terminology is used in most of the description below, but these techniques may also be applicable beyond LTE / LTE-A applications (for example, to fifth-generation (5G) new radio (NR) networks or other next-generation communication systems).

[0034] The following description provides some examples, which are not intended to limit the scope of protection, applicability, or examples set forth in the claims. The functions and arrangements of the components discussed may be changed without departing from the scope of protection of the present disclosure. Various examples may omit, replace, or add various processes or components as needed. For example, the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. In addition, features described with respect to certain examples may also be combined in other examples.

[0035] Various aspects or features will be presented in the context of systems including a plurality of devices, components, modules, etc. It should be understood and appreciated that the various systems may include additional devices, components, modules, etc. and / or may not include all of the devices, components, modules, etc. discussed in conjunction with the figures. Combinations of these methods may also be used.

[0036] Figure 1 1 is a diagram illustrating an example of a wireless communication system and access network 100. The wireless communication system (also referred to as a wireless wide area network (WWAN)) may include a base station 102, a UE 104, an evolved packet core (EPC) 160, and / or a 5G core (5GC) 190. The base station 102 may include a macro cell (a high-power cellular base station) and / or a small cell (a low-power cellular base station). A macro cell may include a base station. A small cell may include a femto cell, a pico cell, and a micro cell. In one example, the base station 102 may also include a gNB 180, as further described herein. In one example, some nodes of the wireless communication system may have a modem 240 and a communication component 242 for providing DMRS for channel transmission repetition according to various aspects described herein. Additionally, some nodes may have a modem 340 and a scheduling component 342 for configuring the device to provide DMRS for channel transmission repetition according to various aspects described herein. Although UE 104 is shown as having a modem 240 and a communication component 242, and base station 102 / gNB 180 is shown as having a modem 340 and a scheduling component 342, this is merely an illustrative example, and substantially any node or type of node may include a modem 240 and a communication component 242 and / or a modem 340 and a scheduling component 342 to provide the corresponding functionality described herein.

[0037] A base station 102 configured for 4G LTE (which may be collectively referred to as the Evolved Universal Mobile Telecommunications System (UMTS) Terrestrial Radio Access Network (E-UTRAN)) may interface with the EPC 160 via a backhaul link 132 (e.g., using an S1 interface). A base station 102 configured for 5G NR (which may be collectively referred to as the Next Generation RAN (NG-RAN)) may interface with the 5GC 190 via a backhaul link 184. The base station 102 may perform, among other functions, one or more of the following: transmission of user data, radio channel encryption and decryption, integrity protection, header compression, mobility control functions (e.g., handover, dual connectivity), inter-cell interference coordination, connection establishment and release, load balancing, distribution of non-access stratum (NAS) messages, NAS node selection, synchronization, radio access network (RAN) sharing, multimedia broadcast multicast service (MBMS), user and device tracking, RAN information management (RIM), paging, positioning, and transmission of warning messages. The base stations 102 can communicate with each other directly or indirectly (e.g., through the EPC 160 or the 5GC 190) via a backhaul link 134 (e.g., using an X2 interface). The backhaul link 134 can be wired or wireless.

[0038] Base station 102 can communicate wirelessly with one or more UEs 104. Each of base stations 102 can provide communication coverage for a respective geographic coverage area 110. There can be overlapping geographic coverage areas 110. For example, a small cell 102′ can have a coverage area 110′ that overlaps with the coverage area 110 of one or more macro base stations 102. A network that includes both small cells and macro cells can be referred to as a heterogeneous network. A heterogeneous network can also include a Home Evolved Node B (eNB) (HeNB), which can provide service to a restricted group called a Closed Subscriber Group (CSG). The communication link 120 between base station 102 and UE 104 can include uplink (UL) (also known as reverse link) transmissions from UE 104 to base station 102 and / or downlink (DL) (also known as forward link) transmissions from base station 102 to UE 104. The communication link 120 can use multiple-input multiple-output (MIMO) antenna technology including spatial multiplexing, beamforming, and / or transmit diversity. The communication link can be over one or more carriers. The base station 102 / UE 104 may use spectrum with a bandwidth of up to Y MHz (e.g., 5, 10, 15, 20, 100, 400, etc. MHz) per carrier allocated in a carrier aggregation of up to Yx MHz (e.g., corresponding to x component carriers) for transmission in the DL and / or UL directions. These carriers may be adjacent to each other or non-adjacent to each other. The allocation of carriers may be asymmetric with respect to DL and UL (e.g., more or fewer carriers may be allocated for DL ​​compared to UL). These component carriers may include a primary component carrier and one or more secondary component carriers. The primary component carrier may be referred to as a primary cell (PCell), and the secondary component carrier may be referred to as a secondary cell (SCell).

[0039] In another example, some UEs 104 can communicate with each other using a device-to-device (D2D) communication link 158. The D2D communication link 158 can use the DL / UL WWAN spectrum. The D2D communication link 158 can use one or more sidelink channels, such as a physical sidelink broadcast channel (PSBCH), a physical sidelink discovery channel (PSDCH), a physical sidelink shared channel (PSSCH), and a physical sidelink control channel (PSCCH). The D2D communication can be carried out through various wireless D2D communication systems such as FlashLinQ, WiMedia, Bluetooth, ZigBee, Wi-Fi based on IEEE 802.11 standards, LTE, or NR.

[0040] The wireless communication system may also include a Wi-Fi access point (AP) 150 that communicates with a Wi-Fi station (STA) 152 via a communication link 154 in the 5 GHz unlicensed spectrum. When communicating in the unlicensed spectrum, the STA 152 / AP 150 may perform a clear channel assessment (CCA) to determine whether the channel is available before communicating.

[0041] The small cell 102′ can operate in licensed and / or unlicensed spectrum. When operating in unlicensed spectrum, the small cell 102′ can employ NR and use the same 5 GHz unlicensed spectrum used by the Wi-Fi AP 150. The small cell 102′ employing NR in the unlicensed spectrum can improve the coverage and / or increase the capacity of the access network.

[0042] Base station 102 (whether a small cell 102′ or a large cell (e.g., a macro base station)) may include an eNB, gNodeB (gNB), or other type of base station. Some base stations, such as gNB 180, may operate in the traditional sub-6 GHz spectrum, at millimeter wave (mmW) frequencies, and / or near-mmW frequencies to communicate with UE 104. When gNB 180 operates at mmW or near-mmW frequencies, gNB 180 may be referred to as a mmW base station. Extremely high frequency (EHF) is a portion of the RF spectrum in the electromagnetic spectrum. EHF has frequencies ranging from 30 GHz to 300 GHz and wavelengths ranging from 1 mm to 10 mm. Radio waves in this band may be referred to as millimeter waves. Near-mmW can extend down to frequencies of 3 GHz with a wavelength of 100 mm. The super high frequency (SHF) band is between 3 GHz and 30 GHz, also known as centimeter waves. Communications using the mmW / near-mmW radio frequency bands have extremely high path loss and a shorter communication range. The mmW base station 180 can utilize beamforming 182 with the UE 104 to compensate for the extremely high path loss and short range. The base station 102 referred to herein can include a gNB 180.

[0043] EPC 160 may include a Mobility Management Entity (MME) 162, other MMEs 164, a Serving Gateway 166, a Multimedia Broadcast Multicast Service (MBMS) Gateway 168, a Broadcast Multicast Service Center (BM-SC) 170, and a Packet Data Network (PDN) Gateway 172. MME 162 may communicate with a Home Subscriber Server (HSS) 174. MME 162 is a control node that handles signaling between UE 104 and EPC 160. Generally, MME 162 provides bearer and connection management. All user Internet Protocol (IP) packets are transmitted through Serving Gateway 166, which itself is connected to PDN Gateway 172. PDN Gateway 172 provides UE IP address allocation and other functions. PDN Gateway 172 and BM-SC 170 are connected to IP Services 176. IP Services 176 may include the Internet, an intranet, an IP Multimedia Subsystem (IMS), PS streaming services, and / or other IP services. The BM-SC 170 may provide functionality for MBMS user service provisioning and delivery. The BM-SC 170 may serve as the entry point for content providers' MBMS transmissions, may be used to authorize and initiate MBMS bearer services within a public land mobile network (PLMN), and may be used to schedule MBMS transmissions. The MBMS gateway 168 may be used to distribute MBMS services to base stations 102 belonging to a multicast broadcast single frequency network (MBSFN) area broadcasting a specific service, and may be responsible for session management (start / stop) and collecting eMBMS-related billing information.

[0044] 5GC 190 may include an access and mobility management function (AMF) 192, other AMFs 193, a session management function (SMF) 194, and a user plane function (UPF) 195. AMF 192 may communicate with unified data management (UDM) 196. AMF 192 may be a control node that handles signaling between UE 104 and 5GC 190. Typically, AMF 192 may provide QoS flow and session management. User Internet Protocol (IP) packets (e.g., packets from one or more UEs 104) may be transmitted through UPF 195. UPF 195 may provide UE IP address allocation, as well as other functions, for one or more UEs. UPF 195 is connected to IP services 197. IP services 197 may include the Internet, an intranet, an IP multimedia subsystem (IMS), PS streaming services, and / or other IP services.

[0045] A base station may also be referred to as a gNB, a Node B, an evolved Node B (eNB), an access point, a base transceiver, a radio base station, a radio transceiver, a transceiver function, a basic service set (BSS), an extended service set (ESS), a transmission reception point (TRP), or some other appropriate terminology. Base station 102 provides an access point to EPC 160 or 5GC 190 for UE 104. Examples of UE 104 include a cellular phone, a smartphone, a Session Initiation Protocol (SIP) phone, a laptop, a personal digital assistant (PDA), a satellite radio, a global positioning system, a multimedia device, a video device, a digital audio player (e.g., an MP3 player), a camera, a game console, a tablet device, a smart device, a wearable device, a vehicle, a meter, a gas pump, a large or small kitchen appliance, a healthcare device, an implant, a sensor / actuator, a display, or any other similarly functional device. Some UEs 104 may be referred to as IoT devices (e.g., a parking meter, a gas pump, a toaster, a vehicle, a heart monitor, etc.). IoT UEs may include machine type communication (MTC) / enhanced MTC (eMTC, also known as Category (CAT)-M or Cat M1) UEs, NB-IoT (also known as CAT NB1) UEs, and other types of UEs. In the present disclosure, eMTC and NB-IoT may refer to future technologies that may evolve from or be based on these technologies. For example, eMTC may include FeMTC (further eMTC), eFeMTC (further enhanced eMTC), mMTC (massive MTC), etc., while NB-IoT may include eNB-IoT (enhanced NB-IoT), FeNB-IoT (further enhanced NB-IoT), etc. UE 104 may also be referred to as a station, mobile station, subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, or some other appropriate terminology.

[0046] In one example, communication component 242 can provide DMRS for channel transmission repetition by defining a DMRS pattern for repetitions mapped to a set of uplink symbols less than a threshold symbol length, by dropping repetitions mapped to a set of uplink symbols less than a threshold symbol length, by delaying repetitions to a set of uplink symbols having at least the threshold symbol length, by sending channel transmission repetitions in a super uplink time slot, etc. In one example, in some examples described herein, scheduling component 342 can schedule channel transmission repetitions for UE 104 and / or can configure UE 104 to provide DMRS for channel transmission repetitions.

[0047] Now go to Figure 2-Figure 9 , some aspects are described with reference to one or more components and one or more methods that can perform the actions or operations described herein, where aspects in dashed form may be optional. Figure 4-Figure 7 The operations described in the foregoing are presented as having a specific order and / or being performed by certain exemplary components, but it should be understood that the order of these actions and the components performing these actions may vary depending on the implementation. In addition, it should be understood that the following actions, functions, and / or described components may be performed by a specially programmed processor, a processor executing specially programmed software or computer-readable media, or any other combination of hardware components and / or software components capable of performing the described actions or functions.

[0048] See also Figure 2 An example implementation of UE 104 may include various components, some of which are described above and further described herein, including components such as one or more processors 212 and memory 216 in communication via one or more buses 244 and a transceiver 202, which may operate in conjunction with a modem 240 and / or a communication component 242 to provide DMRS for channel transmission repetition in accordance with various aspects described herein.

[0049] In one aspect, the one or more processors 212 may include the modem 240 and / or may be part of the modem 240 using one or more modem processors. Thus, various functions associated with the communication component 242 may be included in the modem 240 and / or the processor 212 and, in one aspect, may be performed by a single processor, while in other aspects, different ones of the functions may be performed by a combination of two or more different processors. For example, in one aspect, the one or more processors 212 may include any one or any combination of the following: a modem processor, a baseband processor, a digital signal processor, a transmit processor, a receiver processor, or a transceiver processor associated with the transceiver 202. In other aspects, some of the features of the one or more processors 212 and / or the modem 240 associated with the communication component 242 may be performed by the transceiver 202.

[0050] In addition, the memory 216 can be configured to store data used herein and / or local versions of the applications 275 executed by the at least one processor 212 or one or more of the communication component 242 and / or its subcomponents. The memory 216 can include any type of computer-readable medium usable by a computer or the at least one processor 212, such as random access memory (RAM), read-only memory (ROM), tape, magnetic disk, optical disk, volatile memory, non-volatile memory, and any combination thereof. For example, in one aspect, when the UE 104 is operating the at least one processor 212 to execute one or more of the communication component 242 and / or its subcomponents, the memory 216 can be a non-transitory computer-readable storage medium that stores one or more computer-executable codes and / or data associated therewith that define the communication component 242 and / or its subcomponents.

[0051] The transceiver 202 may include at least one receiver 206 and at least one transmitter 208. The receiver 206 may include hardware, firmware, and / or software code executable by a processor for receiving data, the code including instructions and stored in memory (e.g., a computer-readable medium). For example, the receiver 206 may be a radio frequency (RF) receiver. In one aspect, the receiver 206 may receive signals transmitted by at least one base station 102. In addition, the receiver 206 may process such received signals and may obtain signal measurements (such as, but not limited to, Ec / Io, signal-to-noise ratio (SNR), reference signal received power (RSRP), received signal strength indicator (RSSI), etc.). The transmitter 208 may include hardware, firmware, and / or software code executable by a processor for transmitting data, the code including instructions and stored in memory (e.g., a computer-readable medium). Suitable examples of the transmitter 208 may include, but are not limited to, an RF transmitter.

[0052] Furthermore, in an aspect, the UE 104 may include an RF front end 288 that may be operable to communicate with one or more antennas 265 and the transceiver 202 to receive and transmit radio transmissions (e.g., wireless communications transmitted by at least one base station 102 or wireless transmissions transmitted by the UE 104). The RF front end 288 may be connected to the one or more antennas 265 and may include one or more low noise amplifiers (LNAs) 290, one or more switches 292, one or more power amplifiers (PAs) 298, and one or more filters 296 to transmit and receive RF signals.

[0053] In one aspect, the LNAs 290 can amplify the received signal at a desired output level. In one aspect, each LNA 290 can have specified minimum and maximum gain values. In one aspect, the RF front end 288 can use one or more switches 292 to select a particular LNA 290 and its specified gain value based on the desired gain value for a particular application.

[0054] In addition, for example, the RF front end 288 can use one or more PAs 298 to amplify the signal for RF output at a desired output power level. In one aspect, each PA 298 can have a specified minimum and maximum gain value. In one aspect, the RF front end 288 can use one or more switches 292 to select a specific PA 298 and its specified gain value based on the desired gain value of a particular application.

[0055] In addition, for example, the RF front end 288 can use one or more filters 296 to filter the received signal to obtain an input RF signal. Similarly, in one aspect, for example, a corresponding filter 296 can be used to filter the output from the corresponding PA 298 to produce an output signal for transmission. In one aspect, each filter 296 can be connected to a specific LNA 290 and / or PA 298. In one aspect, the RF front end 288 can use one or more switches 292 to select a transmit path or a receive path using a specific filter 296, LNA 290, and / or PA 298 based on a configuration as specified by the transceiver 202 and / or processor 212.

[0056] As such, the transceiver 202 can be configured to transmit and receive wireless signals via the RF front end 288 through one or more antennas 265. In an aspect, the transceiver can be tuned to operate at a specified frequency so that the UE 104 can communicate, for example, with one or more base stations 102 or one or more cells associated with one or more base stations 102. In an aspect, the modem 240 can configure the transceiver 202 to operate at a specified frequency and power level based on, for example, the UE configuration of the UE 104 and the communication protocol used by the modem 240.

[0057] In one aspect, the modem 240 can be a multi-band, multi-mode modem that can process digital data and communicate with the transceiver 202 so that the digital data is sent and received using the transceiver 202. In one aspect, the modem 240 can be multi-band and configured to support multiple frequency bands with a specific communication protocol. In one aspect, the modem 240 can be multi-mode and configured to support multiple operating networks and communication protocols. In one aspect, the modem 240 can control one or more components of the UE 104 (e.g., the RF front end 288, the transceiver 202) to enable transmission and / or reception of signals from the network based on a specified modem configuration. In one aspect, the modem configuration can be based on the mode of the modem and the frequency band in use. In another aspect, the modem configuration can be based on UE configuration information associated with the UE 104, such as provided by the network during cell selection and / or cell reselection.

[0058] In one aspect, in accordance with aspects described herein, the communication component 242 may optionally include: a DMRS pattern component 252 for defining a DMRS pattern for channel transmission repetitions that are mapped to a set of uplink symbols that is less than a threshold symbol length; a repeat discard component 254 for discarding channel transmission repetitions that are mapped to a set of uplink symbols that is less than a threshold symbol length; a repeat delay component 256 for delaying the channel transmission repetitions to an uplink symbol set that has at least the threshold symbol length; and / or a superslot component 258 for creating a superslot during which the channel transmission repetitions are sent.

[0059] In one aspect, the processor 212 may correspond to a processor that is coupled to Figure 9 Similarly, the memory 216 may correspond to one or more processors in conjunction with the UE described in the embodiment of the present invention. Figure 9 The memory described by the UE in .

[0060] refer to Figure 3 , one example implementation of a base station 102 (e.g., base station 102 and / or gNB 180 as described above) may include various components, some of which have been described above, but including components such as one or more processors 312 and memory 316 in communication via one or more buses 344 and a transceiver 302, which may operate in conjunction with a modem 340 and a scheduling component 342 to configure the device to provide DMRS for channel transmission repetitions in accordance with aspects described herein.

[0061] The transceiver 302, receiver 306, transmitter 308, one or more processors 312, memory 316, applications 375, bus 344, RF front end 388, LNA 390, switch 392, filter 396, PA 398, and one or more antennas 365 may be the same as or similar to the corresponding components of the UE 104 described above, but are configured or otherwise programmed to perform base station operations as opposed to UE operations.

[0062] In an aspect, scheduling component 342 can optionally include a repetition configuring component 352 for configuring UE 104 to transmit uplink channel repetitions in accordance with aspects described herein.

[0063] In one aspect, processor 312 may correspond to a processor that is coupled to Figure 9 Similarly, the memory 316 may correspond to one or more processors in conjunction with the base station described in the embodiment of the present invention. Figure 9 The memory of the base station description in.

[0064] As described above, 5G NR defines physical uplink shared channel (PUSCH) repetition types A and B, where type A may include a number of repetitions of K>1, where the same start and length indicator value (SLIV) applies over K consecutive time slots, and where type B may include K nominal repetitions, each with a nominal length L transmitted back-to-back starting from symbol S, where S and L are given by the SLIV. The base station 102 may configure the SLIV for the UE 104, such that the UE 104 may determine when to send the PUSCH repetitions based on the SLIV and / or based on the configured time slot format.

[0065] For example, communications may typically be configured in a time slot having multiple OFDM symbols, and a slot format for the time slot may be defined and configured to indicate the direction of communication (e.g., as uplink or downlink) for each symbol in the time slot. Thus, in cases where repetitions are mapped to a symbol set that includes one or more non-uplink symbols, the actual repetition length may be shortened. Both repetition types may be applied to dynamic grants, where the UE receives an uplink grant from the base station in downlink control information (DCI) and / or a configured grant, where the UE receives from the base station at least a semi-static indication of possible uplink resources that may be scheduled (e.g., in RRC signaling) and an activation DCI that indicates which of the possible uplink resources are scheduled for the UE.

[0066] For PUSCH repetition type B, the nominal repetition may be a repetition in the virtual domain, ignoring slot boundaries and downlink (DL) outages, while the actual repetition may be such that the nominal repetition may be broken up into multiple actual repetitions due to slot boundaries and / or DL ​​outages. Additionally, for PUSCH repetition type B, segmentation may be used, where the nominal PUSCH repetition may be segmented around slot boundaries, around semi-static DL symbols, and / or possibly around the InvalidSymbolPattern parameter.

[0067] Similar ideas for PUSCH type B repetition can be applied to physical uplink control channel (PUCCH) repetition to allow multiple PUCCH repetitions within a slot, unequal length interleaved repetitions, slot boundaries splitting a nominal repetition into multiple (e.g., 2) actual repetitions, DL OFDM symbols splitting a nominal repetition into multiple actual repetitions, etc. For example, slot boundary splitting may be due to the UE not being able to maintain phase-consistent PUCCH / PUSCH repetitions across slot boundaries. In addition, for example, DL OFDM symbol splitting may be due to the UE not being able to maintain phase consistency with the DL between PUCCH / PUSCH repetitions. The DMRS pattern design in 5G NR may include: given a set of consecutive OFDM symbols (OS) for PUCCH / PUSCH, selecting a subset of OFDM symbols dedicated to DMRS. The definition of channel transmission repetitions may be inconsistent with the DMRS pattern design, at least due to the unequal symbol lengths across repetitions. Some aspects described herein relate to designing a DMRS pattern for each different PUCCH / PUSCH duration (number of OSs).

[0068] Figure 4 According to various aspects described herein, a flow chart illustrating an example of a method 400 for defining a DMRS pattern for uplink channel transmission repetitions having less than a threshold number of symbols is shown. In one example, a UE 104 may use Figure 1 and Figure 2 One or more of the components described in the method 400 may be used to perform the functions described in the method 400.

[0069] In method 400, optionally at block 402, it may be determined that a symbol length for at least a portion of an uplink channel transmission repetition is less than a threshold number of symbols. In one aspect, DMRS pattern component 252, for example, in combination with processor 212, memory 216, transceiver 202, communication component 242, etc., may determine that a symbol length for at least a portion of an uplink channel transmission repetition is less than a threshold number of symbols. For example, DMRS pattern component 252 may determine the symbol length based on determining a set of uplink symbols to which at least a portion of an uplink channel transmission repetition is mapped.

[0070] In one example, determining the symbol length at block 402 may optionally include determining, at block 404, a configuration of a number of symbols for at least a portion of an uplink channel transmission repetition or a configuration of a symbol pattern defined for one or more time slots. In one aspect, DMRS pattern component 252, for example, in conjunction with processor 212, memory 216, transceiver 202, communication component 242, etc., may determine a configuration of a number of symbols for at least a portion of an uplink channel transmission repetition or a configuration of a symbol pattern defined for one or more time slots. In one example, DMRS pattern component 252 may determine an uplink symbol set based on a configuration of a slot format for one or more time slots and a configuration for uplink channel transmission repetition (e.g., a SLIV parameter). For example, communication component 242 may receive one or more of the configurations from base station 102 (e.g., in radio resource control (RRC) signaling, system information or other broadcast signaling, downlink control information (DCI), etc.). Furthermore, in one example, the threshold number of symbols may correspond to a minimum number of symbols for which DMRS can be provided in a radio access technology (RAT). For example, in 5G NR, the threshold number of symbols may be four. In one example, the PUCCH may use a discrete Fourier transform spread OFDM (DFT-S-OFDM) waveform to maintain a low peak-to-average power ratio (PAPR) for coverage. For PUCCH with a DFT-S-OFDM waveform, 5G NR does not define a DMRS pattern for PUCCH with fewer than four OFDM symbols. In this example, the DMRS pattern component 252 may determine the uplink symbol set to be less than four.

[0071] For example, the DMRS pattern component 252 can determine the symbol for at least a portion of the uplink channel transmission repetition to be the first uplink symbol immediately following the initial uplink channel transmission or as defined by a start symbol (e.g., S in SLIV). Additionally, for example, the DMRS pattern component 252 can determine the symbol length to be the lesser of: a nominal length (e.g., L in SLIV) and the length of the set of uplink symbols starting from the start symbol and before encountering a non-uplink (e.g., downlink) symbol in the slot or slot boundary (e.g., the last symbol of the slot). Figure 8 An example is shown in .

[0072] Figure 8According to various aspects described herein, examples of timelines 800, 810, and 820 for sending initial channel transmissions and channel transmission repetitions are shown. Timeline 800 shows an initial transmission 804 and a first portion of a repetition 806 starting in the uplink symbol immediately following the initial transmission 804 and having a symbol length of 6 before the downlink symbol in the time slot. The second portion of the repetition can be mapped to a set of uplink symbols starting at symbol 808, but in some examples can be discarded due to having a symbol length of 3 (which can be less than a threshold symbol length). However, in Figure 4 In the depicted example, the repeated second portion may be mapped to a set of uplink symbols starting at symbol 808 and may define a DMRS pattern (although the symbol length of 3 is less than the threshold symbol length for DMRS in 5G NR).

[0073] In method 400, at block 406, a DMRS pattern may be generated for transmitting DMRS utilizing at least a portion of the uplink channel transmission repetitions based on a symbol length for uplink channel transmission repetitions within a given time slot being less than a threshold number of symbols. In one aspect, DMRS pattern component 252, for example, in combination with processor 212, memory 216, transceiver 202, communication component 242, etc., may generate a DMRS pattern for transmitting DMRS utilizing at least a portion of the uplink channel transmission repetitions based on a symbol length for uplink channel transmission repetitions within a given time slot being less than a threshold number of symbols. For example, a DMRS pattern may be defined for repetitions less than a threshold symbol length. For example, for three symbols, a DMRS pattern may include transmitting DMRS (e.g., uplink symbol, DMRS symbol, uplink symbol) in the middle symbol, and DMRS pattern component 252 may accordingly generate such a DMRS pattern for the three-symbol-length repetitions. For example, for two symbols, the DMRS pattern may include sending DMRS in one of the symbols (e.g., uplink symbol, DMRS symbol, or DMRS symbol, uplink symbol), and the DMRS pattern component 252 may accordingly generate such a DMRS pattern for a repetition of two symbol lengths.

[0074] In method 400, at block 408, at least a portion of the uplink channel transmission repetitions may be transmitted based on DMRS. In one aspect, communication component 242, for example, in combination with processor 212, memory 216, transceiver 202, etc., may transmit at least a portion of the uplink channel transmission repetitions based on a DMRS pattern. For example, communication component 242 may transmit at least a portion of the uplink channel transmission repetitions having less than a threshold number of symbols by introducing DMRS into one or more of the symbols based on a DMRS pattern defined for the number of symbols, as described above.

[0075] Figure 5 According to various aspects described herein, a flow chart of an example method 500 for discarding uplink channel transmission repetitions having less than a threshold number of symbols is shown. In one example, UE 104 may use Figure 1 and Figure 2 One or more of the components described in the method 500 may be used to perform the functions described in the method 500.

[0076] In method 500, at block 502, a configuration indicating a number of symbols for sending multiple uplink channel transmission repetitions in one or more time slots may be received. In one aspect, communication component 242, e.g., in combination with processor 212, memory 216, transceiver 202, etc., may receive a configuration indicating a number of symbols for sending multiple uplink channel transmission repetitions in one or more time slots. For example, as described above, communication component 242 may receive a configuration from base station 102 (e.g., in RRC signaling, system information, DCI, etc.). In one example, a configuration for a given uplink channel transmission may be received to define the repetitions for the uplink channel transmission. The configuration may include a SLIV (such as, S, L, K as described above), and UE 104 may determine, based on the SLIV, the symbols on which to send the uplink channel transmission repetitions after the initial uplink channel transmission.

[0077] In method 500, optionally at block 504, a determination can be made that a symbol length of at least a portion of a repetition of an uplink channel transmission is less than a threshold number of symbols based on a configuration and a time slot configuration of one or more time slots. In one aspect, a repeat discard component 254, for example, in combination with processor 212, memory 216, transceiver 202, communication component 242, etc., can determine that a symbol length of at least a portion of a repetition of an uplink channel transmission is less than a threshold number of symbols based on a configuration and a time slot configuration of one or more time slots. In one example, as described above, communication component 242 can also receive a time slot configuration from base station 102 (e.g., in RRC signaling, system information, DCI, etc.), which can indicate a communication direction (e.g., as an uplink, downlink, etc. symbol) for each of a plurality of symbols in a time slot. In this regard, communication component 242 can determine a set of uplink symbols for transmitting at least a portion of an uplink channel transmission repetition, which, as described above, can include determining a set of uplink symbols that begins at or after symbol S (or immediately after an initial uplink channel transmission) and continues for a symbol length that can be the lesser of: L or until a non-uplink symbol or a slot boundary is encountered (e.g., the last symbol of a slot). Repeat discard component 254 can determine whether the symbol length is less than a threshold defined for DMRS (e.g., four symbols in 5G NR). Again referring to Figure 8 In the example of , duplicate discard component 254 can determine that the symbol length for the set of uplink symbols starting with symbol 808 is less than a threshold symbol length (eg, less than four symbols).

[0078] In method 500, at block 506, transmission of at least a portion of the uplink channel transmission repetitions may be avoided, based on a configuration and a slot configuration of one or more time slots, when a symbol length of one of the plurality of uplink channel transmission repetitions is less than a threshold number of symbols. In one aspect, repetition discarding component 254, for example, in combination with processor 212, memory 216, transceiver 202, communication component 242, etc., may be configured to avoid transmission of at least a portion of the uplink channel transmission repetitions, based on a configuration and a slot configuration of one or more time slots, when a symbol length of one of the plurality of uplink channel transmission repetitions is less than a threshold number of symbols. In one example, avoiding transmission of at least a portion of the uplink channel transmission repetitions may include discarding the repetition and not transmitting the repetition on a determined set of uplink symbols.

[0079] In one example, optionally at block 508, a configuration may be received to instruct to avoid sending repetitions of uplink transmissions less than a threshold number of symbols. In one aspect, the repeat discard component 254, for example, in combination with the processor 212, the memory 216, the transceiver 202, the communication component 242, etc., may receive a configuration to instruct to avoid sending repetitions of uplink channel transmissions less than a threshold number of symbols (e.g., in symbol length). For example, the repeat discard component 254 may receive the configuration from the base station 102 in RRC signaling, system information, DCI, etc., and may avoid sending repetitions of uplink channel transmissions less than the threshold number of symbols based on the configuration.

[0080] In one example, in combination with the method 400 described above, the UE 104 may define a DMRS pattern for certain portions of uplink channel transmission repetitions that are less than a first threshold (e.g., less than four symbols) in symbol length but greater than a second threshold (e.g., greater than one or two symbols) in symbol length, but may discard portions of uplink channel transmission repetitions that are less than the second threshold (e.g., less than one or two symbols) in symbol length.

[0081] Figure 6 According to various aspects described herein, a flow chart of an example method 600 is shown for delaying or sending uplink channel transmission repetitions of less than a threshold number of symbols in a superslot. In one example, UE 104 may use Figure 1 and Figure 2 One or more of the components described in the method 600 may be used to perform the functions described in the method 600.

[0082] In method 600, at block 602, a configuration indicating a number of symbols for transmitting multiple uplink channel transmission repetitions in one or more time slots may be received. In one aspect, communication component 242, e.g., in combination with processor 212, memory 216, transceiver 202, etc., may receive a configuration indicating a number of symbols for transmitting multiple uplink channel transmission repetitions in one or more time slots. For example, as described above, communication component 242 may receive a configuration from base station 102 (e.g., received in RRC signaling, system information, DCI, etc.). In one example, a configuration for a given uplink channel transmission may be received to define the repetitions for the uplink channel transmission. The configuration may include a SLIV (e.g., S, L, K as described above), and UE 104 may determine, based on the SLIV, the symbols on which to transmit the uplink channel transmission repetitions following an initial uplink channel transmission.

[0083] In method 600, optionally at block 604, a determination can be made that a symbol length of at least a portion of a repetition of an uplink channel transmission is less than a threshold number of symbols based on a configuration and a time slot configuration of one or more time slots. In one aspect, repetition delay component 256, for example, in combination with processor 212, memory 216, transceiver 202, communication component 242, etc., can determine that a symbol length of at least a portion of a repetition of an uplink channel transmission is less than a threshold number of symbols based on a configuration and a time slot configuration of one or more time slots. In one example, as described above, communication component 242 can also receive a time slot configuration from base station 102 (e.g., in RRC signaling, system information, DCI, etc.), which can indicate a communication direction (e.g., as an uplink, downlink, etc. symbol) for each of a plurality of symbols in a time slot. In this regard, the communication component 242 can determine an uplink symbol set for transmitting at least a portion of an uplink channel transmission repetition, which, as described above, can include determining an uplink symbol set that begins at or after symbol S (or immediately after an initial uplink channel transmission) and continues for a symbol length that can be the lesser of: L or until a non-uplink symbol or a slot boundary is encountered (e.g., the last symbol of a slot). The repetition delay component 256 can determine whether the symbol length is less than a threshold defined for DMRS (e.g., four symbols in 5G NR).

[0084] refer to Figure 8 , timeline 810 illustrates an initial transmission 812 and a first portion of a repetition 814 beginning with the uplink symbol immediately following initial transmission 812, the first portion of repetition 814 having a symbol length of four preceding the downlink symbol in the time slot. A second portion of the repetition may initially be determined to be mapped to a set of uplink symbols beginning at symbol 816, but in some examples may be delayed because the set of uplink symbols at symbol 816 has a symbol length of three preceding the time slot boundary (which may be less than a threshold symbol length). Therefore, repetition delay component 256 may determine that the symbol length of the set of uplink symbols beginning with symbol 816 is less than a threshold symbol length (e.g., less than four symbols). In one example, repetition delay component 256 may accordingly determine to delay the second portion of the repetition to an uplink symbol set having at least the threshold symbol length (this may include determining a next uplink symbol set that begins with symbol 818 and includes a subsequent set of one or more uplink symbols).

[0085] In method 600, optionally at block 606, transmitting at least a portion of an uplink channel transmission repetition may be delayed if the symbol length is less than a threshold number of symbols. In one aspect, the repetition delay component 256, for example, in combination with the processor 212, the memory 216, the transceiver 202, the communication component 242, etc., may delay transmitting at least a portion of an uplink channel transmission repetition if the symbol length is less than a threshold number of symbols. For example, the repetition delay component 256 may delay transmitting at least a portion of an uplink channel transmission repetition to a next uplink symbol set (e.g., in a current or next time slot, where the next downlink symbol set has at least the threshold symbol length). Reference Figure 8 (where the uplink symbol beginning at symbol 816 has a symbol length less than a threshold), the repetition delay component 256 can determine to delay the second portion of the repetition to uplink symbol 818 in the next time slot to ensure that at least the threshold number of symbols are used for the repetition, thereby allowing the DMRS to be sent in the second portion of the repetition.

[0086] In one example, optionally at block 608, a configuration indicative of delaying the transmission of uplink channel transmission repetitions by less than a threshold number of symbols may be received. In one aspect, the repetition delay component 256, for example, in combination with the processor 212, the memory 216, the transceiver 202, the communication component 242, etc., may receive a configuration indicative of delaying the transmission of uplink channel transmission repetitions by less than a threshold number of symbols (e.g., in symbol length). For example, the repetition delay component 256 may receive the configuration from the base station 102 in RRC signaling, system information, DCI, etc., and may delay the transmission of uplink channel transmission repetitions by less than the threshold number of symbols based on the configuration.

[0087] In another example, the repetition delay component 256 can send at least a portion of the uplink channel transmission repetitions to a formed super uplink time slot, wherein the super uplink time slot includes consecutive uplink symbols spanning multiple time slots, or a set of multiple uplink symbols with one or more non-uplink symbols therebetween (these uplink symbols may or may not span multiple time slots), as further described herein.

[0088] In method 600, optionally at block 610, when a symbol length is less than a threshold number of symbols, a super uplink slot may be created by combining a set of uplink symbols spanning a first time slot and a next time slot. In one aspect, the superslot component 258, for example, in conjunction with the processor 212, the memory 216, the transceiver 202, the communication component 242, etc., may create a super uplink slot by combining a set of uplink symbols spanning a first time slot and a next time slot when the symbol length is less than a threshold number of symbols. For example, as described above, the superslot component 258 may determine that the symbol length is less than a threshold (e.g., four symbols) due to the presence of a symbol boundary in the symbol to which the uplink channel transmission repetition is mapped. In this example, when the superslot component 258 determines that the next time slot begins with an uplink symbol, the superslot component 256 may create a super uplink slot comprising the following symbols: the original symbol to which the uplink channel transmission repetition is mapped and one or more additional symbols of the next time slot. For example, the superslot component 258 can combine the original set of uplink symbols across the first time slot with the additional symbols in the next time slot based on determining that the set of consecutive symbols across the first time slot and the next time slot includes only uplink symbols. For example, the superslot component 258 can determine the number of symbols in the next time slot to achieve the nominal length L or until a non-uplink symbol is encountered (e.g., whichever is smaller). In this example, the superslot component 258 can send the uplink channel transmission repetition in a super uplink time slot, where the super uplink time slot is at least the threshold symbol length.

[0089] In this example, optionally at block 612, uplink channel transmission repetitions may be sent in a super uplink time slot. In one aspect, the superslot component 258, e.g., in combination with the processor 212, the memory 216, the transceiver 202, the communication component 242, etc., may send uplink channel transmission repetitions in a super uplink time slot. For example, as described above, the superslot component 258 may send uplink channel transmission repetitions in a super uplink time slot that spans multiple time slots. Figure 8 An example is shown in .

[0090] refer to Figure 8, timeline 820 shows an initial transmission 822 and a first portion of a repetition 824 beginning in the uplink symbol immediately following the initial transmission 822, the first portion of the repetition 824 having a symbol length of four before the downlink symbol in the slot. The second portion of the repetition can initially be determined to map to the set of uplink symbols beginning at symbol 826, but in some examples, it may be considered to create a super uplink slot instead because the set of uplink symbols at symbol 826 has a symbol length of three before the slot boundary (which may be less than a threshold symbol length). Therefore, the superslot component 258 can determine that the symbol length of the set of uplink symbols beginning with symbol 826 is less than the threshold symbol length (e.g., less than four symbols) and can determine that the next slot begins with the uplink symbol. In one example, the superslot component 258 can accordingly create a super uplink slot that includes an uplink symbol starting at symbol 826 and spanning to a slot boundary, and one or more uplink symbols of the next slot, such as starting with symbol 828 and spanning enough symbols to satisfy the nominal length (L=10 in this example) (e.g., together with a first portion of the uplink channel transmission repetition). The superslot component 258 can send a second portion of the uplink channel transmission repetition on the super uplink slot.

[0091] In one example, optionally at block 614, a configuration may be received indicating that only consecutive uplink symbols are used to create a super uplink slot. In one aspect, the superslot component 258, for example, in combination with the processor 212, the memory 216, the transceiver 202, the communication component 242, etc., may receive a configuration indicating that only consecutive uplink symbols are used to create a super uplink slot. For example, the superslot component 258 may receive the configuration from the base station 102 in RRC signaling, system information, DCI, etc., and may create a super uplink slot based on the configuration at block 610.

[0092] In method 600, optionally at block 616, a super uplink slot may be created by combining a first uplink symbol set and a second uplink symbol set in a first time slot when the symbol length is less than a threshold number of symbols. In one aspect, the superslot component 258, for example, in combination with the processor 212, the memory 216, the transceiver 202, the communication component 242, etc., may create a super uplink slot by combining a first uplink symbol set and a second uplink symbol set in a first time slot when the symbol length is less than a threshold number of symbols. In one example, the first and second uplink symbol sets may be in the same or different time slots and may include one or more non-uplink symbols between them. For example, as described above, the superslot component 258 may determine that the symbol length is less than a threshold (e.g., four symbols) due to the presence of a symbol boundary or a non-uplink symbol (e.g., a downlink symbol) in the symbol to which the uplink channel transmission repetition is mapped. In this example, the superslot component 258 can determine a next uplink symbol set that can result in a symbol length that reaches a threshold, and can create a super uplink slot that includes the original symbol to which the uplink channel transmission repetition is mapped and one or more additional symbols in the next uplink symbol set. For example, the superslot component 258 can determine the number of symbols in the next uplink symbol set to achieve the nominal length L or until another non-uplink symbol is encountered (e.g., whichever is smaller). In this example, the superslot component 258 can send the uplink channel transmission repetition in a super uplink slot, where the super uplink slot is at least the threshold symbol length.

[0093] In this example, uplink channel transmission repetitions can optionally be sent in a super uplink time slot at block 612. In one aspect, the superslot component 258, for example, in combination with the processor 212, the memory 216, the transceiver 202, the communication component 242, etc., can send uplink channel transmission repetitions in a super uplink time slot. For example, as described above, the superslot component 258 can send uplink channel transmission repetitions in a super uplink time slot, which includes multiple sets of uplink symbols that can be separated by one or more non-uplink symbols.

[0094] In one example, optionally at block 618, a configuration may be received indicating whether or not a super uplink slot is to be created with non-uplink symbols. In one aspect, the superslot component 258, for example, in combination with the processor 212, the memory 216, the transceiver 202, the communication component 242, etc., may receive a configuration indicating whether or not a super uplink slot is to be created with non-uplink symbols. For example, the superslot component 258 may receive the configuration from the base station 102 in RRC signaling, system information, DCI, etc., and may create a super uplink slot based on the configuration at block 610.

[0095] Figure 7 According to various aspects described herein, a flow chart illustrating an example of a method 700 for configuring a UE to drop or delay uplink channel transmission repetitions having less than a threshold number of symbols or to create super uplink time slots therefor is shown. In one example, the base station 102 may use Figure 1 and Figure 3 One or more of the components described in the method 700 may be used to perform the functions described in the method 700.

[0096] In method 700, at block 702, a first configuration indicating a number of symbols to be repeated for multiple uplink channel transmissions in one or more time slots may be sent. In one aspect, repetition configuration component 352, for example, in combination with processor 312, memory 316, transceiver 302, scheduling component 342, etc., may send a first configuration indicating a number of symbols to be repeated for multiple uplink channel transmissions in one or more time slots. For example, repetition configuration component 352 may send the configuration to UE 104 (e.g., in RRC signaling, system information, DCI, etc.), as described above. In one example, a configuration for a given uplink channel transmission may be received to define the repetitions for the uplink channel transmission. The configuration may include a SLIV (e.g., S, L, K as described above), and UE 104 may determine, based on the SLIV, the symbols on which to send the uplink channel transmission repetitions after the initial uplink channel transmission.

[0097] In method 700, at block 704, a second configuration of one or more parameters may be transmitted that indicates determining the symbols used to transmit uplink channel repetitions when a symbol length for uplink channel transmission repetitions is determined to be less than a threshold number of symbols. In one aspect, repetition configuration component 352, for example, in conjunction with processor 312, memory 316, transceiver 302, scheduling component 342, etc., may transmit a second configuration of one or more parameters that indicates determining the symbols used to transmit uplink channel repetitions when a symbol length for uplink channel transmission repetitions is determined to be less than a threshold number of symbols. For example, repetition configuration component 352 may transmit the second configuration in RRC signaling, system information, DCI, etc. Furthermore, in one example, repetition configuration component 352 may transmit the second configuration for each uplink channel transmission, defining the associated repetitions. In addition, in one example, the second configuration may indicate at least one of the following operations: discarding repetitions having a number of symbols less than a threshold, delaying repetitions having a number of symbols less than a threshold, creating an uplink superslot for sending delayed repetitions (e.g., creating an uplink superslot using only consecutive uplink symbols or regardless of whether there are one or more non-uplink symbols between a set of uplink symbols), etc.

[0098] In method 700, at block 706, uplink channel transmission repetitions can be received based on the first configuration and the second configuration. In one aspect, scheduling component 342, for example, in combination with processor 312, memory 316, transceiver 302, etc., can receive uplink channel transmission repetitions based on the first configuration and the second configuration. As described above, scheduling component 342 can determine, for example, the symbols on which to receive the repetitions based on the configuration for sending the repetitions, the actual slot format, the configuration indicating how to discard or send the repetitions if the symbol length is less than a threshold, etc. Thus, for example, scheduling component 342 can similarly determine how UE 104 sends the uplink channel repetitions based on the configuration provided to UE 104.

[0099] Figure 9 1 is a block diagram of a MIMO communication system 900 including a base station 102 and a UE 104. The MIMO communication system 900 may be shown with reference to Figure 1 Aspects of the wireless communication access network 100 are described. The base station 102 may be a reference Figure 1Examples of various aspects of base station 102 are described. Base station 102 can be equipped with antennas 934 and 935, and UE 104 can be equipped with antennas 952 and 953. In MIMO communication system 900, base station 102 can be capable of transmitting data simultaneously over multiple communication links. Each communication link can be referred to as a "layer," and the "rank" of a communication link can indicate the number of layers used for communication. For example, in a 2x2 MIMO communication system (in which base station 102 transmits two "layers"), the rank of the communication link between base station 102 and UE 104 is two.

[0100] At the base station 102, a transmit (Tx) processor 920 may receive data from a data source. The transmit processor 920 may process the data. The transmit processor 920 may also generate control symbols or reference symbols. The transmit MIMO processor 930 may perform spatial processing (e.g., precoding) on ​​the data symbols, control symbols, or reference symbols (if any), and provide output symbol streams to transmit modulators / demodulators 932 and 933. Each modulator / demodulator 932 to 933 may process its own output symbol stream (e.g., for OFDM, etc.) to obtain an output sample stream. Each modulator / demodulator 932 to 933 may further process (e.g., convert to an analog signal, amplify, filter, and upconvert) the output sample stream to obtain a DL signal. In one example, the DL signals from the modulators / demodulators 932 and 933 may be transmitted via antennas 934 and 935, respectively.

[0101] UE 104 may be a reference Figure 1-2 Examples of various aspects of the UE 104 are described. At the UE 104, UE antennas 952 and 953 can receive downlink signals from the base station 102 and can provide received signals to modulators / demodulators 954 and 955, respectively. Each modulator / demodulator 954 to 955 can condition (e.g., filter, amplify, downconvert, and digitize) the respective received signal to obtain input samples. Each modulator / demodulator 954 to 955 can further process the input samples (e.g., for OFDM, etc.) to obtain received symbols. A MIMO detector 956 can obtain received symbols from the modulators / demodulators 954 and 955, perform MIMO detection on the received symbols (if applicable), and provide detected symbols. A receive (Rx) processor 958 can process (e.g., demodulate, deinterleave, and decode) the detected symbols, provide decoded data for the UE 104 to a data output, and provide decoded control information to a processor 980 or memory 982.

[0102] In some cases, processor 980 may execute stored instructions to instantiate communication component 242 (e.g., see Figure 1 and Figure 2 ).

[0103] On the uplink (UL), at the UE 104, a transmit processor 964 may receive and process data from a data source. The transmit processor 964 may also generate reference symbols for a reference signal. The symbols from the transmit processor 964 may be precoded by a transmit MIMO processor 966 (if applicable), further processed by the modulators / demodulators 954 and 955 (e.g., for SC-FDM, etc.), and transmitted back to the base station 102 based on the communication parameters received from the base station 102. At the base station 102, the UL signal from the UE 104 may be received by antennas 934 and 935, processed by the modulators / demodulators 932 and 933, detected by the MIMO detector 936 (if applicable), and further processed by the receive processor 938. The receive processor 938 may provide decoded data to a data output and to the processor 940 or memory 942.

[0104] In some cases, processor 940 can execute stored instructions to instantiate scheduling component 342 (e.g., see Figure 1 and Figure 3 ).

[0105] The components of the UE 104 may be implemented individually or collectively using one or more ASICs, wherein the one or more ASICs are adapted to perform some or all of the applicable functions in hardware. Each of the modules described may be a unit for performing one or more functions related to the operation of the MIMO communication system 900. Similarly, the components of the base station 102 may be implemented individually or collectively using one or more application-specific integrated circuits (ASICs), wherein the one or more ASICs are adapted to perform some or all of the applicable functions in hardware. Each of the components described may be a unit for performing one or more functions related to the operation of the MIMO communication system 900.

[0106] The following aspects are merely illustrative and may be combined with other embodiments or teachings described herein, but are not limited thereto.

[0107] Aspect 1 is a method for wireless communication, comprising: determining that a symbol length for uplink channel transmission repetition is less than four symbols; based on the symbol length, determining a DMRS pattern for sending DMRS using the uplink channel transmission repetition; and sending the uplink channel transmission repetition based on the DMRS pattern.

[0108] In aspect 2, the method according to aspect 1 includes, wherein determining the symbol length for the uplink channel transmission repetition is based on a definition of a number of symbols for the uplink channel transmission repetition and a symbol pattern defined for one or more time slots.

[0109] In aspect 3, the method according to any one of aspects 1 or 2 includes, wherein determining the DMRS pattern includes determining a subset of symbols for transmitting the DMRS that are repeatedly allocated for transmission on the uplink channel.

[0110] In aspect 4, the method according to aspect 3 includes, wherein the symbol length is three symbols, and determining the DMRS pattern includes: determining the subset of symbols used to transmit the DMRS to be a second symbol of the three symbols.

[0111] In aspect 5, the method according to any one of aspects 3 or 4 includes, wherein the symbol length is two symbols, and determining the DMRS pattern includes: determining the symbol subset used to send the DMRS as the first symbol or the second symbol of the two symbols.

[0112] In aspect 6, the method according to any one of aspects 1 to 5 includes, wherein the uplink channel associated with the uplink channel transmission repetition is a physical uplink control channel or a physical uplink shared channel.

[0113] Aspect 7 is a method for wireless communication, the method comprising: receiving a configuration indicating the number of symbols used to send multiple uplink channel transmission repetitions in one or more time slots; determining that the symbol length for the uplink channel transmission repetition is less than four symbols based on the configuration and the time slot configuration of the one or more time slots; and avoiding sending the uplink channel transmission repetition based on determining that the symbol length is less than four symbols.

[0114] In aspect 8, the method according to aspect 7 includes, wherein determining that the symbol length is less than four symbols includes: determining that the symbol length is one symbol, and wherein avoiding sending the uplink channel transmission repetition is based on determining that the symbol length is one symbol.

[0115] In aspect 9, the method according to any one of aspects 7 or 8 includes receiving a configuration indicating to avoid sending uplink channel transmission repetitions of less than four symbols, wherein avoiding sending the uplink channel transmission repetitions is based on the configuration.

[0116] In aspect 10, the method according to any one of aspects 7 to 9 includes, wherein the uplink channel associated with the uplink channel transmission repetition is a physical uplink control channel or a physical uplink shared channel.

[0117] Aspect 11 is a method for wireless communication, the method comprising: receiving a configuration indicating the number of symbols for sending multiple uplink channel transmission repetitions in one or more time slots; based on the time slot configuration of the one or more time slots, determining that the symbol length for uplink channel transmission repetitions in a first time slot is less than four symbols; and based on determining that the symbol length is less than four symbols, performing at least one of the following: delaying the sending of at least a portion of the uplink channel transmission repetitions; or sending at least a portion of the uplink channel transmission repetitions in a super uplink time slot.

[0118] In aspect 12, the method according to aspect 11 includes receiving a configuration indicating delaying transmission of uplink channel transmission repetitions of less than four symbols, wherein delaying sending at least the portion of the uplink channel transmission repetitions is based on the configuration.

[0119] In aspect 13, the method according to any one of aspects 11 or 12 includes creating the super uplink slot by combining a set of uplink symbols spanning the first slot and a next slot based on determining that the symbol length is less than four symbols.

[0120] In aspect 14, the method according to aspect 13 includes, wherein creating the super uplink time slot includes: based on determining that the consecutive symbol sets across the first time slot and the next time slot only include uplink symbols, combining the uplink symbol sets across the first time slot and the next time slot.

[0121] In aspect 15, the method according to aspect 14 includes receiving a configuration indicating that only consecutive uplink symbols are used to create the super uplink slot, wherein creating the super uplink slot is based on the configuration.

[0122] In aspect 16, the method according to any one of aspects 11 to 15 includes: creating the super uplink time slot by combining the first uplink symbol set and the second uplink symbol set based on determining one or more non-uplink symbols between the first uplink symbol set in the first time slot and the second uplink symbol set in the first time slot or the next time slot.

[0123] In aspect 17, the method according to aspect 16 includes receiving a configuration indicating that the super uplink slot is to be created regardless of whether downlink symbols are included, wherein creating the super uplink slot is based on the configuration.

[0124] In aspect 18, the method according to any one of aspects 11 to 17 includes, wherein the uplink channel associated with the uplink channel transmission repetition is a physical uplink control channel or a physical uplink shared channel.

[0125] Aspect 19 is a method for wireless communication, comprising: sending a first configuration indicating the number of symbols for multiple uplink channel transmission repetitions in one or more time slots; sending a second configuration indicating one or more parameters for determining the symbols for sending uplink channel transmission repetitions when it is determined that the symbol length of the uplink channel transmission repetitions is less than four symbols; and receiving the uplink channel transmission repetitions based on the first configuration and the second configuration.

[0126] In aspect 20, the method of aspect 19 includes wherein the second configuration indicates whether to drop or delay uplink channel transmission repetitions of less than four symbols.

[0127] In aspect 21, the method according to any one of aspects 19 or 20 includes, wherein the second configuration indicates whether to use consecutive uplink symbols of multiple time slots or non-consecutive uplink symbols of multiple time slots to form a super uplink time slot for uplink channel transmission repetition.

[0128] In aspect 22, the method of any one of aspects 19 to 21 includes, wherein the uplink channel associated with the uplink channel transmission repetition is a physical uplink control channel or a physical uplink shared channel.

[0129] Aspect 23 is a method for wireless communication, comprising: generating a DMRS pattern for sending DMRS using the uplink channel transmission repetition based on the symbol length for uplink channel transmission repetition in a given time slot being less than four symbols; and sending the uplink channel transmission repetition based on the DMRS pattern.

[0130] In aspect 24, the method according to aspect 23 includes, wherein the symbol length used for the uplink channel transmission repetition within the given time slot is based on the definition of the number of symbols used for the uplink channel transmission repetition and the symbol pattern defined for one or more time slots.

[0131] In aspect 25, the method according to any one of aspects 23 or 24 includes, wherein the DMRS pattern comprises a subset of symbols for transmitting the DMRS that are repeatedly allocated for the uplink channel transmission.

[0132] In aspect 26, the method of aspect 25 includes wherein the symbol length is three symbols and the DMRS pattern includes the subset of symbols for transmitting the DMRS as a second symbol of the three symbols.

[0133] In aspect 27, the method according to any one of aspects 25 or 26 includes, wherein the symbol length is two symbols, and the DMRS pattern includes the subset of symbols for transmitting the DMRS as the first symbol or the second symbol of the two symbols.

[0134] In aspect 28, the method according to any one of aspects 23 to 27, wherein the uplink channel associated with the uplink channel transmission repetition is a physical uplink control channel or a physical uplink shared channel.

[0135] Aspect 29 is a method for wireless communication, the method comprising: receiving a configuration indicating the number of symbols used to send multiple uplink channel transmission repetitions in one or more time slots; and wherein, based on the configuration and the time slot configuration of the one or more time slots, the symbol length of one uplink channel transmission repetition among the multiple uplink channel transmission repetitions is less than four symbols, avoiding sending the one uplink channel transmission repetition among the multiple uplink channel transmission repetitions.

[0136] In aspect 30, the method of aspect 29 includes, wherein the symbol length is one symbol, and wherein avoiding transmitting the one uplink channel transmission repetition of the plurality of uplink channel transmission repetitions is based on the symbol length being one symbol.

[0137] In aspect 31, the method according to any one of aspects 29 or 30 includes receiving a configuration indicating avoiding sending uplink channel transmission repetitions of less than four symbols, wherein avoiding sending the one uplink channel transmission repetition of the multiple uplink channel transmission repetitions is based on the configuration.

[0138] In aspect 32, the method according to any one of aspects 29 to 31 includes, wherein the uplink channel associated with the uplink channel transmission repetition is a physical uplink control channel or a physical uplink shared channel.

[0139] Aspect 33 is a method for wireless communication, the method comprising: receiving a configuration indicating the number of symbols used to send multiple uplink channel transmission repetitions in one or more time slots; and wherein, based on the configuration and the time slot configuration of the one or more time slots, the symbol length of one uplink channel transmission repetition in the multiple uplink channel transmission repetitions in the first time slot is less than four symbols, performing at least one of the following: delaying the sending of at least a portion of the one uplink channel transmission repetition in the multiple uplink channel transmission repetitions; or sending at least a portion of the one uplink channel transmission repetition in the multiple uplink channel transmission repetitions in a super uplink time slot.

[0140] In aspect 34, the method according to aspect 33 includes: receiving a configuration indicating a delay in the transmission of an uplink channel transmission repetition of less than four symbols, wherein, based on the configuration, at least a portion of the one uplink channel transmission repetition among the multiple uplink channel transmission repetitions is delayed.

[0141] In aspect 35, the method according to any one of aspects 33 or 34 includes creating the super uplink slot by combining uplink symbol sets over the first slot and a next slot based on the symbol length being less than four symbols.

[0142] In aspect 36, the method according to aspect 35 includes, wherein creating the super uplink time slot includes: combining the uplink symbol sets across the first time slot and the next time slot when the consecutive symbol sets across the first time slot and the next time slot only include uplink symbols.

[0143] In aspect 37, the method according to aspect 36 comprises receiving a configuration indicating that only consecutive uplink symbols are used to create the super uplink slot, wherein creating the super uplink slot is based on the configuration.

[0144] In aspect 38, the method according to any one of aspects 33 to 37 includes: creating the super uplink time slot by combining the first uplink symbol set and the second uplink symbol set when there are one or more non-uplink symbols between the first uplink symbol set in the first time slot and the second uplink symbol set in the first time slot or the next time slot.

[0145] In aspect 39, the method according to aspect 38 includes receiving a configuration indicating that the super uplink slot is to be created regardless of whether downlink symbols are included, wherein creating the super uplink slot is based on the configuration.

[0146] In aspect 40, the method according to any one of aspects 33 to 39 includes, wherein the uplink channel associated with the plurality of uplink channel transmission repetitions is a physical uplink control channel or a physical uplink shared channel.

[0147] Aspect 41 is an apparatus for wireless communication, comprising a transceiver, a memory configured to store instructions, and one or more processors communicatively coupled to the memory and the transceiver, wherein the one or more processors are configured to perform one or more of the methods according to any one of Aspects 1 to 40.

[0148] Aspect 42 is an apparatus for wireless communication, comprising means for performing one or more of the methods according to any one of aspects 1 to 40.

[0149] Aspect 43 is a computer-readable medium comprising code executable by one or more processors for wireless communication, the code comprising code for performing one or more of the methods according to any one of aspects 1 to 40.

[0150] The specific embodiments described above in conjunction with the accompanying drawings describe some examples, but they do not represent all examples that can be implemented, nor do they represent all examples that fall within the scope of protection of the claims. As used in this specification, the word "exemplary" means "used as an example, illustration, or description", but does not mean "more preferred" or "more advantageous" than other examples. The specific embodiments include specific details to provide a thorough understanding of the described technology. However, these technologies can be implemented without using these specific details. In some instances, in order to avoid obscuring the concepts of the described examples, well-known structures and devices are shown in block diagram form.

[0151] Information and signals may be represented using any of a variety of different techniques and methods. For example, data, instructions, commands, information, signals, bits, symbols, and chips mentioned throughout the above description may be represented by voltages, currents, electromagnetic waves, magnetic fields or particles, optical fields or particles, computer-executable code or instructions stored on a computer-readable medium, or any combination thereof.

[0152] The various exemplary blocks and components described in conjunction with the disclosure herein may be implemented or executed using a specially programmed device, such as, but not limited to, a digital signal processor (DSP), an ASIC, a field programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic devices, discrete hardware components, or any combination thereof, for performing the functions described herein. A specially programmed processor may be a microprocessor, or the processor may be any conventional processor, controller, microcontroller, or state machine. A specially programmed processor may also be implemented as a combination of computing devices (e.g., a combination of a DSP and a microprocessor, a plurality of microprocessors, a combination of one or more microprocessors and a DSP core, or any other such configuration).

[0153] The functions described herein can be implemented in hardware, software executed by a processor, firmware, or any combination thereof. When implemented using software executed by a processor, these functions can be stored on a non-temporary computer-readable medium or transmitted as one or more instructions or codes on a non-temporary computer-readable medium. Other examples and implementations also fall within the scope and spirit of the present disclosure and the claims thereto. For example, due to the nature of software, the functions described above can be implemented using software, hardware, firmware, hardware wiring, or any combination thereof executed by a specially programmed processor. The features used to implement the functions can be physically distributed in multiple locations, including being distributed in different physical locations to implement a part of the function. In addition, as used herein (including the claims), "or" as used in a list item prefixed with "at least one of" indicates a separate list, so that, for example, the list "at least one of A, B, or C" means: A or B or C or AB or AC or BC or ABC (i.e., A and B and C).

[0154] Computer-readable media include computer storage media and communication media, wherein the communication media include any medium that is convenient for transmitting a computer program from one place to another. Storage media can be any available medium that a general or special-purpose computer can access. For example, but not limited to, computer-readable media can include RAM, ROM, EEPROM, CD-ROM or other optical disk storage, disk storage or other magnetic storage device, or any other medium that can be used to carry or store the desired program code unit with instruction or data structure form and can be accessed by a general or special-purpose computer or a general or special-purpose processor. In addition, any connection can be appropriately referred to as a computer-readable medium. For example, if software is transmitted from a website, server or other remote source using a coaxial cable, optical fiber cable, twisted pair, digital subscriber line (DSL) or wireless technologies such as infrared, wireless and microwave, then the coaxial cable, optical fiber cable, twisted pair, DSL or wireless technologies such as infrared, wireless and microwave are included in the definition of the medium. As used herein, disk and disc include compact disc (CD), laser disc, optical disc, digital versatile disc (DVD), floppy disk and Blu-ray disc, where disks usually reproduce data magnetically, while discs reproduce data optically with lasers. Combinations of the above should also be included within the scope of protection of computer-readable media.

[0155] To enable any person of ordinary skill in the art to implement or use the present disclosure, the above description is centered around the present disclosure. It is obvious to those of ordinary skill in the art that various modifications to the present disclosure are possible, and the general principles defined herein may also be applied to other variations without departing from the spirit or scope of the present disclosure. In addition, although the elements of the described aspects and / or embodiments are described or claimed in the singular, the plural form is contemplated unless expressly stated to be limited to the singular. In addition, unless otherwise stated, all parts or a portion of any aspect and / or embodiment may be used together with all parts or a portion of any other aspect and / or embodiment. Therefore, the present disclosure is not limited to the examples and designs described herein, but is consistent with the widest range of the principles and novel features disclosed herein.

Claims

1. An apparatus for wireless communication, comprising: transceiver; a memory configured to store instructions; as well as one or more processors communicatively coupled to the memory and the transceiver, wherein the one or more processors are configured to: receiving a configuration indicating a number of symbols for sending a plurality of uplink channel transmission repetitions in one or more time slots; and Wherein, based on the configuration and the time slot configuration of the one or more time slots, a symbol length of a first uplink symbol set for at least a portion of one uplink channel transmission repetition in the plurality of uplink channel transmission repetitions in a first time slot is less than four symbols, performing the following operations: creating a super uplink slot by combining the first set of uplink symbols and the second set of uplink symbols in the event that one or more non-uplink symbols are present between the first set of uplink symbols and a second set of uplink symbols in the first time slot or a next time slot; defining a DMRS pattern based on symbol lengths of the first uplink symbol set and the second uplink symbol set, respectively, wherein the DMRS pattern includes a subset of symbols used to transmit the DMRS; and The at least a portion of the one uplink channel transmission repetition of the plurality of uplink channel transmission repetitions is transmitted in the super uplink slot and based on the DMRS pattern.

2. The device according to claim 1, wherein The one or more processors are further configured to create the super uplink slot by combining a set of uplink symbols spanning the first slot and a next slot based on the symbol length being less than four symbols.

3. The device according to claim 1, wherein The one or more processors are further configured to receive a configuration indicating that the super uplink slot is to be created regardless of whether downlink symbols are included, wherein the one or more processors are configured to create the super uplink slot based on the configuration.

4. The device according to claim 1, wherein The uplink channel associated with the plurality of uplink channel transmission repetitions is a physical uplink control channel or a physical uplink shared channel.

5. A method for wireless communication, comprising: receiving a configuration indicating a number of symbols for transmitting a plurality of uplink channel transmission repetitions in one or more time slots; and Wherein, based on the configuration and the time slot configuration of the one or more time slots, a symbol length of a first uplink symbol set for at least a portion of one uplink channel transmission repetition in the plurality of uplink channel transmission repetitions in a first time slot is less than four symbols, performing the following operations: creating a super uplink slot by combining the first set of uplink symbols and the second set of uplink symbols in the event that one or more non-uplink symbols are present between the first set of uplink symbols and a second set of uplink symbols in the first time slot or a next time slot; defining a DMRS pattern based on symbol lengths of the first uplink symbol set and the second uplink symbol set, respectively, wherein the DMRS pattern includes a subset of symbols used to transmit the DMRS; and The at least a portion of the one of the plurality of uplink channel transmission repetitions is transmitted in the super uplink slot and based on the DMRS pattern.

6. The method according to claim 5, further comprising: The super uplink slot is created by combining a set of uplink symbols spanning the first slot and a next slot based on the symbol length being less than four symbols.

7. The method according to claim 5, further comprising: A configuration is received indicating whether the super uplink slot is to be created regardless of whether downlink symbols are included, wherein creating the super uplink slot is based on the configuration.

8. The method according to claim 5, wherein The uplink channel associated with the plurality of uplink channel transmission repetitions is a physical uplink control channel or a physical uplink shared channel.

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