Optimized subframe blanking for dual SIM dual activity

Abstract

In some aspects, an apparatus may be a wireless device configured to operate a first transceiver in a first connected mode with a first radio access network (RAN) and a second transceiver in a second connected mode with a second RAN. The apparatus may also be configured to: transmit a first communication via a first transceiver; and obtaining an indication of cancellation of the one or more symbols for the first communication via the first transceiver based on the second communication via the second transceiver. The apparatus may also be configured to refrain from transmitting a remaining portion of the first communication via a set of symbols comprising one or more symbols based on the indication.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims the benefit of U.S. non-provisional patent application serial No. 18 / 174,533, filed on February 24, 2023, and entitled “OPTIMIZED SUBFRAMEBLANKING FOR DUAL SIM DUAL ACTIVE,” the entire contents of which are expressly incorporated herein by reference. Technical Field

[0003] The present disclosure relates generally to communication systems and, more particularly, to dual SIM dual active (DSDA) wireless devices. Background Art

[0004] Wireless communication systems are widely deployed to provide a variety of telecommunication services, such as telephony, video, data, messaging, and broadcasting. Typical wireless communication systems may employ multiple access technologies capable of supporting communication with multiple users by sharing available system resources. Examples of such multiple access technologies include code division multiple access (CDMA) systems, time division multiple access (TDMA) systems, frequency division multiple access (FDMA) systems, orthogonal frequency division multiple access (OFDMA) systems, single-carrier frequency division multiple access (SC-FDMA) systems, and time division synchronous code division multiple access (TD-SCDMA) 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 at a city, country, region, and even global level. An example telecommunication standard is 5G New Radio (NR). 5G NR is part of the continued mobile broadband evolution released by the Third Generation Partnership Project (3GPP) to meet new requirements associated with latency, reliability, security, scalability (e.g., with the Internet of Things (IoT)), and other requirements. 5G NR includes services associated with enhanced mobile broadband (eMBB), massive machine type communications (mMTC), and ultra-reliable low latency communications (URLLC). Some aspects of 5G NR may be based on the 4G Long Term Evolution (LTE) standard. There is a need for further improvements to 5G NR technology. These improvements may also be applicable to other multiple access technologies and telecommunication standards that employ these technologies. Summary of the Invention

[0006] The following provides a brief overview of one or more aspects in order to provide a basic understanding of such aspects. This overview is not an extensive review of all contemplated aspects. This overview is not intended to identify key or important elements of all aspects, nor is it intended to delineate the scope of any or all aspects. Its sole purpose is to provide some concepts of one or more aspects in a simplified form as a prelude to a more detailed description that will be provided later.

[0007] In one aspect of the present disclosure, a method, computer-readable medium, and apparatus are provided. In some aspects, the apparatus may be a wireless device configured to operate a first transceiver in a first connected mode with a first radio access network (RAN) and to operate a second transceiver in a second connected mode with a second RAN. The apparatus may also be configured to: initiate transmission of a first communication via the first transceiver; and based on the second communication via the second transceiver, obtain an indication of cancellation of a set of symbols used for the first communication via the first transceiver. The apparatus may also be configured to: based on the indication, refrain from transmitting a remaining portion of the first communication via the set of symbols, wherein the set of symbols includes one or more symbols that at least partially overlap with the second communication.

[0008] In one aspect of the present disclosure, a method, a computer-readable medium, and an apparatus are provided. In some aspects, the apparatus may be configured to grant, to a wireless device, a first set of resources for a first communication associated with a first RAN. The apparatus may also be configured to: identify, based on receiving a portion of the first communication via a subset of the first set of resources, that the first communication is not included in the first set of resources; and, based on identifying that the first set of resources does not include the first communication, grant, for the first communication, a second set of additional resources including a redundancy value associated with an initial transmission of the first communication.

[0009] To accomplish the foregoing and related objectives, one or more aspects may include the features hereinafter fully described and particularly pointed out in the claims. The following description and accompanying drawings set forth in detail certain illustrative features of one or more aspects. However, these features are indicative of only some of the various ways in which the principles of the various aspects may be employed. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 is a diagram illustrating an example of a wireless communication system and an access network.

[0011] Figure 2A is a diagram illustrating an example of a first frame according to various aspects of the present disclosure.

[0012] Figure 2B is a diagram illustrating an example of downlink (DL) channels within a subframe according to various aspects of the present disclosure.

[0013] Figure 2C is a diagram illustrating an example of a second frame according to various aspects of the present disclosure.

[0014] Figure 2D is a diagram illustrating an example of uplink (UL) channels within a subframe according to various aspects of the present disclosure.

[0015] Figure 3 is a diagram illustrating an example of a base station and a user equipment (UE) in an access network.

[0016] Figure 4 is a set of diagrams illustrating possible modes of operation of a DSDA wireless device for communicating with a first RAN and a second RAN according to aspects of the present disclosure.

[0017] Figure 5 is a set of diagrams illustrating examples of canceling or blanking symbols of a first transmission based on an indication of a second transmission without canceling or blanking additional symbols according to some aspects of the present disclosure.

[0018] Figure 6 is a set of diagrams illustrating examples of canceling or blanking a set of symbols of a first transmission based on an indication of a second transmission, wherein the set of symbols includes a repeated set of symbols and one or more additional symbols, according to aspects of the present disclosure.

[0019] Figure 7 is a graph illustrating metrics of decodability of retransmissions without blanking following a transmission with N blanked symbols for a given modulation and coding scheme (MCS), in accordance with aspects of the present disclosure.

[0020] Figure 8 is a call flow diagram of a method for canceling symbols of a first transmission from a wireless device based on a collision with a second transmission from the wireless device in accordance with aspects of the present disclosure.

[0021] Figure 9 is a flow chart of a method of wireless communication.

[0022] Figure 10 is a flow chart of a method of wireless communication.

[0023] Figure 11 is a flow chart of a method of wireless communication.

[0024] Figure 12 are diagrams illustrating examples of hardware implementations for example apparatuses and / or network entities.

[0025] Figure 13 is a diagram illustrating an example of a hardware implementation for an example network entity. DETAILED DESCRIPTION

[0026] In some aspects of wireless communications (e.g., DSDA), a wireless device may be connected to two different RANs. For example, the wireless device may be configured to simultaneously connect to a first RAN and a second RAN (e.g., where the first RAN or the second RAN may be an LTE RAN or a 5G NR RAN). The different RANs may schedule overlapping transmissions from the wireless device (e.g., transmissions from the wireless device are scheduled for overlapping time periods and / or for overlapping time periods and frequencies). In some aspects, the wireless device may be unable to send overlapping transmissions (at least during the overlapping time periods). In some aspects, the inability to send overlapping transmissions may be due to the wireless device's hardware being unable to simultaneously transmit two different signals (e.g., having one transceiver, one antenna, etc.) or based on external limitations (e.g., maximum allowable transmission power). Based on the inability to send two transmissions during the overlapping time period, the wireless device may cancel at least one transmission during the overlapping time period (e.g., may blank, null data tones, or avoid transmitting during the overlapping time period). In some aspects, the wireless device may determine to cancel the first transmission in favor of the second transmission based on the relative priority of the overlapping transmissions (e.g., based on the associated RAN, data, or channel type or time period).

[0027] For example, in a scenario where a first transmission is associated with a low-priority communication utilizing a first RAN and a second transmission is associated with a higher-priority communication utilizing a second RAN, the wireless device may cancel or blank the overlapping portion of the low-priority communication. However, in some aspects, this partial blanking may not be the optimal solution for low-priority communications (e.g., for communications associated with a physical uplink shared channel (PUSCH)). For example, if the canceled or blanked portion of the first transmission includes a demodulation reference signal (DMRS or DM-RS), the cancellation or blanking may render the first transmission undecodable at the receiving network device. In some aspects, the cancellation or blanking of at least one DMRS in the first transmission associated with a redundancy value (RV) of "0" may significantly corrupt and / or degrade the first transmission (e.g., a PUSCH transmission) to the extent that even subsequent retransmissions (e.g., RV2, RV3, or RV1 retransmissions using corresponding RVs of 2, 3, or 4, respectively) may be undecodable. Therefore, a method and apparatus for detecting overlapping transmissions are provided, which can result in cancellation or blanking of one DMRS of a first transmission of a first communication, and cancellation of an additional portion (e.g., symbols) of the first transmission so that a receiving network device fails to recognize or detect the first transmission, and subsequent grants for (re)transmissions of the first communication use an RV of 0.

[0028] Certain aspects of the subject matter described in this disclosure can be implemented to achieve one or more of the following potential advantages: In some examples, the described techniques can be used to avoid one or more retransmissions of an undecodable first transmission (or communication) (where the retransmissions may also be undecodable) by canceling additional symbols beyond a minimum set of (overlapping) symbols used to send a second transmission.

[0029] The detailed description set forth below in conjunction with the accompanying drawings describes various configurations and does not represent the only configurations in which the concepts described herein can be practiced. For the purpose of providing a comprehensive understanding of the various concepts, the detailed description includes specific details. However, these concepts can be practiced without these specific details. In some instances, well-known structures and components are shown in block diagram form to avoid obscuring such concepts.

[0030] Several aspects of telecommunications systems are presented with reference to various apparatuses and methods. These apparatuses and methods are described below in the detailed description and illustrated in the accompanying drawings by means of various blocks, components, circuits, processes, algorithms, etc. (collectively referred to as "elements"). These elements can be implemented using electronic hardware, computer software, or any combination thereof. Whether such elements are implemented as hardware or software depends on the specific application and the design constraints imposed on the overall system.

[0031] For example, an element, or any part of an element, or any combination of elements, can be implemented as a "processing system" comprising one or more processors. Examples of processors include microprocessors, microcontrollers, graphics processing units (GPUs), central processing units (CPUs), application processors, digital signal processors (DSPs), reduced instruction set computing (RISC) processors, systems on chip (SoCs), baseband processors, field programmable gate arrays (FPGAs), programmable logic devices (PLDs), state machines, gating logic, discrete hardware circuits, and other suitable hardware configured to perform the various functions described throughout this disclosure. One or more processors in a processing system can execute software. Whether referred to as software, firmware, middleware, microcode, hardware description language, or other names, software should be broadly interpreted as meaning instructions, instruction sets, codes, code segments, program codes, programs, subroutines, software components, applications, software applications, software packages, routines, subroutines, objects, executable files, threads of execution, processes, functions, or any combination thereof.

[0032] Accordingly, in one or more example aspects, implementations and / or use cases, the described functionality may be implemented in hardware, software, or any combination thereof. If implemented in software, the functionality may be stored or encoded as one or more instructions or codes on a computer-readable medium. Computer-readable media include computer storage media. A storage medium may be any available medium that can be accessed by a computer. By way of example, such a computer-readable medium may include a random access memory (RAM), a read-only memory (ROM), an electrically erasable programmable ROM (EEPROM), optical disk storage, magnetic disk storage, other magnetic storage devices, a combination of various types of computer-readable media, or any other medium that can be used to store computer-executable code that can be accessed by a computer in the form of instructions or data structures.

[0033] Although aspects, implementations and / or use cases are described in this application by way of explanation of some examples, additional or different aspects, implementations and / or use cases may be produced in many different arrangements and scenarios. The aspects, implementations and / or use cases described in this article can be implemented across many different platform types, devices, systems, shapes, sizes, and packaging arrangements. For example, aspects, implementations and / or use cases can be produced via integrated chip implementations and other devices based on non-module components (e.g., end-user devices, vehicles, communication devices, computing devices, industrial equipment, retail / purchase equipment, medical equipment, devices enabling artificial intelligence (AI), etc.). Although some examples may or may not be specifically for use cases or applications, there may be a variety of applicable scopes for the examples described. The scope of aspects, implementations and / or use cases can range from chip-level or modular components to non-modular, non-chip-level implementations and further to aggregated, distributed or original equipment manufacturer (OEM) devices or systems of one or more technologies incorporated herein. In some actual settings, the equipment incorporated into the various aspects and features described may also include additional components and features for the implementation and enforcement of the claimed and described aspects. For example, the transmission and reception of wireless signals necessarily include multiple components for analog and digital purposes (e.g., hardware components including antennas, RF chains, power amplifiers, modulators, buffers, processors, interleavers, adders / summers, etc.). The techniques described herein can be implemented in a variety of devices having different sizes, shapes, and configurations, chip-level components, systems, distributed arrangements, aggregated or disaggregated components, end-user devices, etc.

[0034] The deployment of a communication system (such as a 5G NR system) can be arranged in a variety of ways using various components or constituent parts. In a 5G NR system or network, a network node, a network entity, a mobility element of the network, a radio access network (RAN) node, a core network node, a network element or a network device (such as a base station (BS) or one or more units (or one or more components) that perform base station functionality) can be implemented in an aggregated or decomposed architecture. For example, a BS (such as a Node B (NB), an evolved NB (eNB), an NR BS, a 5G NB, an access point (AP), a transmit receive point (TRP) or a cell, etc.) can be implemented as an aggregated base station (also referred to as an independent BS or a monolithic BS) or a decomposed base station.

[0035] A converged base station may be configured to utilize a radio protocol stack that is physically or logically integrated within a single RAN node. A decomposed base station may be configured to utilize a protocol stack that is physically or logically distributed between two or more units, such as one or more central or centralized units (CUs), one or more distributed units (DUs), or one or more radio units (RUs). In some aspects, a CU may be implemented within a RAN node, and one or more DUs may be co-located with the CU, or alternatively, may be geographically or virtually distributed across one or more other RAN nodes. A DU may be implemented to communicate with one or more RUs. Each of the CUs, DUs, and RUs may be implemented as a virtual unit (i.e., a virtual central unit (VCU), a virtual distributed unit (VDU), or a virtual radio unit (VRU)).

[0036] Base station operation or network design can take into account the aggregated nature of base station functionality. For example, a disaggregated base station can be utilized in an integrated access backhaul (IAB) network, an open radio access network (O-RAN (such as a network configuration sponsored by the O-RAN Alliance)), or a virtual radio access network (vRAN, also known as a cloud radio access network (C-RAN)). Disaggregation can include distributing functionality across two or more units at various physical locations, as well as virtually distributing functionality for at least one unit, which can enable flexibility in network design. Each unit of a disaggregated base station or disaggregated RAN architecture can be configured for wired or wireless communication with at least one other unit.

[0037] Figure 1FIG100 is a diagram illustrating an example of a wireless communication system and access network. The wireless communication system shown includes a disaggregated base station architecture. The disaggregated base station architecture may include one or more CUs 210, which may communicate directly with the core network 120 via a backhaul link, or indirectly with the core network 120 through one or more disaggregated base station units (such as a near real-time (near-RT) RAN intelligent controller (RIC) 125 via an E2 link, or a non-real-time (non-RT) RIC 115 associated with a service management and orchestration (SMO) framework 105, or both). The CU 110 may communicate with one or more DUs 130 via corresponding mid-haul links (such as an F1 interface). The DU 130 may communicate with one or more RUs 140 via corresponding fronthaul links. The RU 140 may communicate with corresponding UEs 104 via one or more radio frequency (RF) access links. In some implementations, a UE 104 may be served simultaneously by multiple RUs 140.

[0038] Each of these units (i.e., CU 110, DU 130, RU 140), as well as the near-RT RIC 125, the non-RT RIC 115, and the SMO framework 105, may include or be coupled to one or more interfaces configured to receive or send signals, data, or information (collectively, signals) via a wired or wireless transmission medium. Each of these units, or an associated processor or controller that provides instructions to the communication interface of these units, may be configured to communicate with one or more of the other units via a transmission medium. For example, these units may include a wired interface configured to receive signals on a wired transmission medium or to send signals to one or more of the other units. In addition, these units may include a wireless interface (which may include a receiver, a transmitter, or a transceiver (such as an RF transceiver)) configured to receive signals on a wireless transmission medium, or to send signals to one or more of the other units, or to perform both operations.

[0039] In some aspects, the CU 110 may be responsible for one or more higher-layer control functions. Such control functions may include radio resource control (RRC), packet data convergence protocol (PDCP), service data adaptation protocol (SDAP), etc. Each control function may be implemented using an interface configured to transmit signals to other control functions managed by the CU 110. The CU 110 may be configured to handle user plane functionality (i.e., central unit-user plane (CU-UP)), control plane functionality (i.e., central unit-control plane (CU-CP)), or a combination thereof. In some implementations, the CU 110 may be logically split into one or more CU-UP units and one or more CU-CP units. The CU-UP unit may communicate bidirectionally with the CU-CP unit via an interface (such as the E1 interface when implemented in an O-RAN configuration). The CU 110 may be implemented to communicate with the DU 130 as needed for network control and signaling.

[0040] The DU 130 may correspond to a logical unit that includes one or more base station functions to control the operation of one or more RUs 140. In some aspects, depending at least in part on a functional split (such as that defined by 3GPP), the DU 130 may host one or more of the following: a radio link control (RLC) layer, a medium access control (MAC) layer, and one or more higher physical (PHY) layers (such as modules for forward error correction (FEC) encoding and decoding, scrambling, modulation, demodulation, etc.). In some aspects, the DU 130 may also host one or more lower PHY layers. Each layer (or module) may be implemented using an interface configured to communicate signals with other layers (and modules) hosted by the DU 130 or with control functions hosted by the CU 110.

[0041] Lower layer functionality may be implemented by one or more RUs 140. In some deployments, based at least in part on a functional split (such as a lower layer functional split), a RU 140 controlled by a DU 130 may correspond to a logical node responsible for: RF processing functions or low PHY layer functions (such as performing Fast Fourier Transform (FFT), Inverse FFT (iFFT), digital beamforming, Physical Random Access Channel (PRACH) extraction and filtering, etc.), or both. In such an architecture, the RU 140 may be implemented to handle over-the-air (OTA) communications with one or more UEs 104. In some implementations, real-time and non-real-time aspects of control and user plane communications with the RU 140 may be controlled by the corresponding DU 130. In some scenarios, this configuration may enable the DU 130 and CU 110 to be implemented in a cloud-based RAN architecture (such as a vRAN architecture).

[0042] The SMO framework 105 can be configured to support RAN deployment and provisioning of both non-virtualized and virtualized network elements. For non-virtualized network elements, the SMO framework 105 can be configured to support the deployment of dedicated physical resources for RAN coverage requirements, which can be managed via an operations and maintenance interface (such as the O1 interface). For virtualized network elements, the SMO framework 105 can be configured to interact with a cloud computing platform (such as Open Cloud (O-Cloud) 190) via a cloud computing platform interface (such as the O2 interface) to perform network element lifecycle management (such as instantiating virtualized network elements). Such virtualized network elements may include, but are not limited to, CU 110, DU 130, RU 140, and near-RT RIC 125. In some implementations, the SMO framework 105 can communicate with hardware aspects of the 4G RAN (such as Open eNB (O-eNB) 111) via the O1 interface. Additionally, in some implementations, the SMO framework 105 can communicate directly with one or more RUs 140 via the O1 interface. The SMO framework 105 may also include a non-RT RIC 115 configured to support the functionality of the SMO framework 105 .

[0043] The non-RT RIC 115 may be configured to include logic that implements non-real-time control and optimization of RAN elements and resources, artificial intelligence (AI) / machine learning (ML) (AI / ML) workflows (including model training and updates), or policy-based guidance of applications / features in the near-RT RIC 125. The non-RT RIC 115 may be coupled to or in communication with the near-RT RIC 125 (such as via an A1 interface). The near-RT RIC 125 may be configured to include logic that implements near-real-time control and optimization of RAN elements and resources via data collection and actions over an interface connecting one or more CUs 110, one or more DUs 130, or both, and an O-eNB with the near-RT RIC 125 (such as via an E2 interface).

[0044] In some implementations, to generate AI / ML models to be deployed in the near-RT RIC 125, the non-RT RIC 115 may receive parameters or external enrichment information from an external server. Such information may be utilized by the near-RT RIC 125 and may be received from non-network data sources or from network functions at the SMO framework 105 or the non-RT RIC 115. In some examples, the non-RT RIC 115 or the near-RT RIC 125 may be configured to tune RAN behavior or performance. For example, the non-RT RIC 115 may monitor long-term trends and patterns in performance and employ AI / ML models to perform corrective actions through the SMO framework 105 (such as via reconfiguration of O1) or by creating RAN management policies (such as A1 policies).

[0045] At least one of the CU 110, DU 130, and RU 140 may be referred to as a base station 102. Thus, the base station 102 may include one or more of the CU 110, DU 130, and RU 140 (each component is indicated with a dashed line to indicate that each component may or may not be included in the base station 102). The base station 102 provides an access point to the core network 120 for the UE 104. 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). Small cells include femto cells, pico cells, and micro cells. A network that includes both small cells and macro cells may be referred to as a heterogeneous network. A heterogeneous network may also include a home evolved Node B (eNB) (HeNB), which may provide services to a restricted group called a closed subscriber group (CSG). The communication link between RU 140 and UE 104 may include uplink (UL) (also known as reverse link) transmissions from UE 104 to RU 140 and / or downlink (DL) (also known as forward link) transmissions from RU 140 to UE 104. The communication link may use multiple-input multiple-output (MIMO) antenna technology, including spatial multiplexing, beamforming, and / or transmit diversity. The communication link may be over one or more carriers. Base station 102 / UE 104 may use spectrum of up to Y MHz (e.g., 5, 10, 15, 20, 100, 500, etc. MHz) bandwidth per carrier allocated in carrier aggregation for up to a total of Yx MHz (x component carriers) for transmission in each direction. The carriers may be adjacent to each other or may not be 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 ​​than for UL). 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).

[0046] Some UEs 104 can communicate with each other using device-to-device (D2D) communication links 158. The D2D communication links 158 can use DL / UL wireless wide area network (WWAN) spectrum. The D2D communication links 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). D2D communication can be achieved through various wireless D2D communication systems, such as, for example, Bluetooth, Wi-Fi based on the Institute of Electrical and Electronics Engineers (IEEE) 802.11 standard, LTE, or NR.

[0047] The wireless communication system may also include a Wi-Fi AP 150 that communicates with a UE 104 (also referred to as a Wi-Fi station (STA)) via a communication link 154 in, for example, a 5 GHz unlicensed spectrum. When communicating in the unlicensed spectrum, the UE 104 / AP 150 may perform a clear channel assessment (CCA) to determine whether the channel is available before communicating.

[0048] The electromagnetic spectrum is typically subdivided into various categories, bands, channels, etc. based on frequency / wavelength. In 5G NR, two initial operating bands have been identified with the frequency range names FR1 (510 MHz - 7.125 GHz) and FR2 (24.25 GHz - 52.6 GHz). Although a portion of FR1 is greater than 6 GHz, FR1 is often (interchangeably) referred to as the "sub-6 GHz" band in various documents and articles. Similar naming issues sometimes arise with respect to FR2, which is often (interchangeably) referred to as the "millimeter wave" band in documents and articles, although it is different from the extremely high frequency (EHF) band (30 GHz - 300 GHz) which is identified as the "millimeter wave" band by the International Telecommunication Union (ITU).

[0049] Frequencies between FR1 and FR2 are generally referred to as mid-band frequencies. Recent 5G NR research has identified the operating bands of these mid-band frequencies as the frequency range designation FR3 (7.125 GHz–24.25 GHz). Frequency bands falling within FR3 may inherit FR1 characteristics and / or FR2 characteristics, and thus may effectively extend the characteristics of FR1 and / or FR2 to mid-band frequencies. In addition, higher frequency bands are currently being explored to extend 5G NR operation above 52.6 GHz. For example, three higher operating bands have been identified as the frequency range designations FR2-2 (52.6 GHz–71 GHz), FR4 (71 GHz–114.25 GHz), and FR5 (114.25 GHz–300 GHz). Each of these higher frequency bands falls within the EHF band.

[0050] In view of the above, unless otherwise specified, if the term is used in this document, "sub-6 GHz" or the like may broadly refer to frequencies that may be less than 6 GHz, frequencies that may be within FR1, or frequencies that may include mid-band frequencies. In addition, unless otherwise specified, if the term is used in this document, "millimeter wave" or the like may broadly refer to frequencies that may include mid-band frequencies, frequencies that may be within FR2, FR4, FR2-2, and / or FR5, or frequencies that may be within the EHF band.

[0051] Base station 102 and UE 104 may each include multiple antennas (such as antenna elements, antenna panels, and / or antenna arrays) to facilitate beamforming. Base station 102 may transmit beamformed signals 182 to UE 104 in one or more transmit directions. UE 104 may receive beamformed signals from base station 102 in one or more receive directions. UE 104 may also transmit beamformed signals 184 to base station 102 in one or more transmit directions. Base station 102 may receive beamformed signals from UE 104 in one or more receive directions. Base station 102 / UE 104 may perform beam training to determine the optimal receive and transmit directions for each of base station 102 / UE 104. The transmit and receive directions for base station 102 may be the same or different. The transmit and receive directions for UE 104 may be the same or different.

[0052] The base station 102 may include and / or be referred to as a gNB, a Node B, an eNB, an access point, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a basic service set (BSS), an extended service set (ESS), a TRP, a network node, a network entity, a network device, or some other suitable terminology. The base station 102 may be implemented as an integrated access and backhaul (IAB) node, a relay node, a sidelink node, a converged (monolithic) base station having a baseband unit (BBU) (including a CU and a DU) and a RU, or as a disaggregated base station including one or more of a CU, a DU, and / or a RU. A collection of base stations that may include disaggregated base stations and / or converged base stations may be referred to as a next generation (NG) RAN (NG-RAN).

[0053] The core network 120 may include an access and mobility management function (AMF) 161, a session management function (SMF) 162, a user plane function (UPF) 163, a unified data management (UDM) 164, one or more location servers 168, and other functional entities. The AMF 161 is a control node that handles signaling between the UE 104 and the core network 120. The AMF 161 supports registration management, connection management, mobility management, and other functions. The SMF 162 supports session management and other functions. The UPF 163 supports packet routing, packet forwarding, and other functions. The UDM 164 supports the generation of authentication and key agreement (AKA) credentials, user identity processing, access authorization, and subscription management. The one or more location servers 168 are shown as including a gateway mobile location center (GMLC) 165 and a location management function (LMF) 166. However, in general, the one or more location servers 168 may include one or more location / positioning servers, which may include one or more of the GMLC 165, LMF 166, Position Determination Entity (PDE), Serving Mobile Location Center (SMLC), Mobile Positioning Center (MPC), etc. The GMLC 165 and LMF 166 support UE location services. The GMLC 165 provides an interface for clients / applications (e.g., emergency services) to access UE positioning information. The LMF 166 receives measurements and assistance information from the NG-RAN and UE 104 via the AMF 161 to calculate the location of the UE 104. The NG-RAN may utilize one or more positioning methods to determine the location of the UE 104. Positioning the UE 104 may involve signal measurements, position estimation, and optional velocity calculation based on the measurements. Signal measurements may be performed by the UE 104 and / or the base station 102 serving the UE 104. The measured signal may be based on a satellite positioning system (SPS) 170 (e.g., one or more of a global navigation satellite system (GNSS), a global positioning system (GPS), a non-terrestrial network (NTN), or other satellite location / positioning systems), LTE signals, wireless local area network (WLAN) signals, Bluetooth signals, a terrestrial beacon system (TBS), sensor-based information (e.g., air pressure sensor, motion sensor), NR enhanced cell ID (NR E-CID) method, NR signals (e.g., multi-round trip time (multi-RTT), DL angle of transmission (DL-AoD), DL time difference of arrival (DL-TDOA), UL time difference of arrival (UL-TDOA), and UL angle of arrival (UL-AoA) positioning) and / or other systems / signals / sensors.

[0054] Examples of UE 104 include cellular phones, smartphones, Session Initiation Protocol (SIP) phones, laptop computers, personal digital assistants (PDAs), satellite radio units, global positioning systems, multimedia devices, video devices, digital audio players (e.g., MP3 players), cameras, game consoles, tablet computers, smart devices, wearable devices, vehicles, electric meters, gas pumps, large or small kitchen appliances, healthcare equipment, implants, sensors / actuators, displays, or any other similarly functional device. Some of the UEs 104 may be referred to as IoT devices (e.g., parking meters, gas pumps, ovens, vehicles, heart monitors, etc.). UE 104 may also be referred to as a station, mobile station, user station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile user station, access terminal, mobile terminal, wireless terminal, remote terminal, handheld device, user agent, mobile client, client, or some other appropriate term. In some scenarios, the term UE may also be applied to one or more companion devices, such as in a device constellation arrangement. One or more of these devices may access the network together and / or individually.

[0055] Refer again Figure 1 In certain aspects, the UE 104 may include an extra symbol cancellation component 198 that may be configured to operate a first transceiver in a first connected mode with a RAN and a second transceiver in a second connected mode with a second RAN. The extra symbol cancellation component 198 may also be configured to initiate transmission of a first communication via the first transceiver and, based on the second communication via the second transceiver, obtain an indication of cancellation of a set of symbols used for the first communication via the first transceiver. The extra symbol cancellation component 198 may also be configured to, based on the indication, refrain from transmitting a remaining portion of the first communication via the set of symbols, where the set of symbols includes one or more symbols that at least partially overlap with the second communication. In certain aspects, the base station 102 may include a partial cancellation Tx detection component 199 that may be configured to grant, to the wireless device, a first set of resources for the first communication associated with the first RAN. The partial cancellation Tx detection component 199 can also be configured to: based on receiving a portion of the first communication via the subset of the first set of resources, identify that the first set of resources does not include the first communication; and based on identifying that the first set of resources does not include the first communication, grant a second set of additional resources for the first communication including a redundancy value associated with an initial transmission of the first communication. Although the present disclosure may focus on a DSDA wireless device in connected mode with two RANs (e.g., a first LTE RAN and a second 5G NR RAN), the present disclosure generally relates to multi-connected wireless devices and multiple RANs.

[0056] Figure 2A FIG200 is a diagram illustrating an example of a first subframe within a 5G NR frame structure. Figure 2B FIG230 is a diagram illustrating an example of DL channels within a 5G NR subframe. Figure 2C FIG250 is a diagram showing an example of a second subframe within a 5G NR frame structure. Figure 2D FIG280 is a diagram illustrating an example of UL channels within a 5G NR subframe. The 5G NR frame structure may be frequency division duplex (FDD) (wherein, for a particular set of subcarriers (carrier system bandwidth), a subframe within a subcarrier set is dedicated to either DL or UL), or may be time division duplex (TDD) (wherein, for a particular set of subcarriers (carrier system bandwidth), a subframe within a subcarrier set is dedicated to both DL and UL). Figure 2A 、 2C In the example provided, the 5G NR frame structure is assumed to be TDD, where subframe 4 is configured with slot format 28 (most of which are DL), where D is DL, U is UL, and F is flexible between DL / UL, and subframe 3 is configured with slot format 1 (all of which are UL). Although subframes 3 and 4 are shown as having slot formats 1 and 28, respectively, any particular subframe can be configured with any of the various available slot formats 0-61. Slot formats 0 and 1 are all DL and all UL, respectively. Other slot formats 2-61 include a mix of DL, UL, and flexible symbols. The UE is configured with the slot format (dynamically configured via DL control information (DCI) or semi-statically / statically configured via radio resource control (RRC) signaling) via the received slot format indicator (SFI). It should be noted that the following description also applies to the 5G NR frame structure for TDD.

[0057] Figures 2A-2DThe frame structure is shown, and various aspects of the present disclosure may be applicable to other wireless communication technologies, which may have different frame structures and / or different channels. A frame (10ms) may be divided into 10 equally sized subframes (1ms). Each subframe may include one or more time slots. A subframe may also include a mini-time slot, which may include 7, 4, or 2 symbols. Each time slot may include 14 or 12 symbols, depending on whether the cyclic prefix (CP) is normal or extended. For a normal CP, each time slot may include 14 symbols, and for an extended CP, each time slot may include 12 symbols. The symbols on the DL may be CP orthogonal frequency division multiplexing (OFDM) (CP-OFDM) symbols. The symbols on the UL may be CP-OFDM symbols (for high throughput scenarios) or discrete Fourier transform (DFT) extended OFDM (DFT-s-OFDM) symbols (for power-limited scenarios; limited to single stream transmission). The number of time slots within a subframe is based on the CP and the numerology. The numerology defines the subcarrier spacing (SCS) (see Table 1). The symbol length / duration can be scaled using 1 / SCS.

[0058] μ <![CDATA[SCSΔf=2 μ ·15[kHz]]]> cyclic prefix 0 15 ordinary 1 30 ordinary 2 60 Normal, Extended 3 120 ordinary 4 240 ordinary 5 580 ordinary 6 960 ordinary

[0059] Table 1: Digital scheme, SCS and CP

[0060] For normal CP (14 symbols / time slot), different digital schemes μ0 to 4 allow 1, 2, 4, 8 and 16 time slots per subframe respectively. For extended CP, digital scheme 2 allows 4 time slots per subframe. Accordingly, for normal CP and digital scheme μ, there are 14 symbols / time slot and 2 μ timeslots / subframe. The subcarrier spacing can be equal to 2 v *15kHz, where μ is the digital scheme 0 to 4. Thus, digital scheme μ=0 has a subcarrier spacing of 15kHz, and digital scheme μ=4 has a subcarrier spacing of 240kHz. The symbol length / duration is inversely related to the subcarrier spacing. Figures 2A-2D Examples are provided for a normal CP (with 14 symbols per slot) and a digital scheme μ=2 (with 4 slots per subframe). The slot duration is 0.25 ms, the subcarrier spacing is 60 kHz, and the symbol duration is approximately 16.67 μs. Within a frame set, there may be one or more different bandwidth parts (BWPs) frequency-division multiplexed (see Figure 2B ). Each BWP can have a specific number scheme and CP (normal or extended).

[0061] The resource grid can be used to represent the frame structure. Each time slot includes a resource block (RB) (also called a physical RB (PRB)), which includes 12 consecutive subcarriers. The resource grid is divided into multiple resource elements (REs). The number of bits carried by each RE depends on the modulation scheme.

[0062] As in Figure 2A As shown in , some of the REs carry reference (pilot) signals (RS) for the UE. The RS may include a demodulation RS (DM-RS) for channel estimation at the UE (indicated as R for a specific configuration, but other DM-RS configurations are possible) and a channel state information reference signal (CSI-RS). The RS may also include a beam measurement RS (BRS), a beam refinement RS (BRRS), and a phase tracking RS (PT-RS).

[0063] Figure 2B Examples of various DL channels within a subframe of a frame are shown. The physical downlink control channel (PDCCH) carries DCI within one or more control channel elements (CCEs) (e.g., 1, 2, 4, 8, or 16 CCEs), each CCE comprising six RE groups (REGs), each REG comprising 12 consecutive REs within one OFDM symbol of the RB. The PDCCH within a BWP may be referred to as a control resource set (CORESET). The UE is configured to monitor PDCCH candidates in a PDCCH search space (e.g., common search space, UE-specific search space) during a PDCCH monitoring opportunity on the CORESET, where the PDCCH candidates have different DCI formats and different aggregation levels. Additional BWPs may be located at larger and / or lower frequencies across the channel bandwidth. The primary synchronization signal (PSS) may be within symbol 2 of a specific subframe of the frame. The PSS is used by the UE 104 to determine subframe / symbol timing and physical layer identification. The secondary synchronization signal (SSS) may be within symbol 4 of a specific subframe of the frame. The SSS is used by the UE to determine the physical layer cell identity group number and radio frame timing. Based on the physical layer identity and the physical layer cell identity group number, the UE can determine the physical cell identifier (PCI). Based on the PCI, the UE can determine the position of the DM-RS. The physical broadcast channel (PBCH) carrying the master information block (MIB) can be logically grouped with the PSS and SSS to form a synchronization signal (SS) / PBCH block (also referred to as an SS block (SSB)). The MIB provides the number of RBs in the system bandwidth and the system frame number (SFN). The physical downlink shared channel (PDSCH) carries user data, broadcast system information not sent through the PBCH (such as the system information block (SIB)), and paging messages.

[0064] As in Figure 2CAs shown in , some of the REs carry DM-RSs for channel estimation at the base station (indicated as R for a specific configuration, but other DM-RS configurations are possible). The UE may send DM-RSs for the physical uplink control channel (PUCCH) and DM-RSs for the physical uplink shared channel (PUSCH). The PUSCH DM-RS may be sent in the first one or two symbols of the PUSCH. The PUCCH DM-RS may be sent in different configurations depending on whether a short PUCCH or a long PUCCH is sent and depending on the specific PUCCH format used. The UE may send a sounding reference signal (SRS). The SRS may be sent in the last symbol of the subframe. The SRS may have a comb structure, and the UE may send the SRS on one of the combs. The SRS may be used by the base station for channel quality estimation to enable frequency-dependent scheduling on the UL.

[0065] Figure 2D An example of various UL channels within a subframe of a frame is shown. The PUCCH may be positioned as indicated in one configuration. The PUCCH carries uplink control information (UCI) such as scheduling requests, channel quality indicator (CQI), precoding matrix indicator (PMI), rank indicator (RI), and hybrid automatic repeat request (HARQ) acknowledgement (ACK) (HARQ-ACK) feedback (i.e., one or more HARQ ACK bits indicating one or more ACKs and / or negative ACKs (NACKs)). The PUSCH carries data and may additionally be used to carry a buffer status report (BSR), a power headroom report (PHR), and / or UCI.

[0066] Figure 33 is a block diagram of a base station 310 communicating with a UE 350 in an access network. In the DL, Internet Protocol (IP) packets may be provided to a controller / processor 375. The controller / processor 375 implements layer 3 and layer 2 functions. Layer 3 includes a radio resource control (RRC) layer, and layer 2 includes a service data adaptation protocol (SDAP) layer, a packet data convergence protocol (PDCP) layer, a radio link control (RLC) layer, and a medium access control (MAC) layer. The controller / processor 375 provides: RRC layer functions associated with the following: broadcast of system information (e.g., MIB, SIB), RRC connection control (e.g., RRC connection paging, RRC connection establishment, RRC connection modification, and RRC connection release), inter-radio access technology (RAT) mobility, and measurement configuration for UE measurement reporting; PDCP layer functions associated with the following: header compression / decompression, security (ciphering, deciphering, integrity protection, integrity verification), and handover support functions; RLC layer functions associated with the following: transmission of upper layer packet data units (PDUs), error correction through ARQ, concatenation, segmentation and reassembly of RLC service data units (SDUs), resegmentation of RLC data PDUs, and reordering of RLC data PDUs; and MAC layer functions associated with the following: mapping between logical channels and transport channels, multiplexing of MAC SDUs onto transport blocks (TBs), demultiplexing of MAC SDUs from TBs, scheduling information reporting, error correction through HARQ, priority handling, and logical channel prioritization.

[0067] The transmit (TX) processor 316 and receive (RX) processor 370 implement layer 1 functions associated with various signal processing functions. Layer 1, including the physical (PHY) layer, may include error detection for the transmission channel, forward error correction (FEC) encoding / decoding for the transmission channel, interleaving, rate matching, mapping onto the physical channel, modulation / demodulation of the physical channel, and MIMO antenna processing. The TX processor 316 handles the mapping to the signal constellation based on various modulation schemes (e.g., binary phase shift keying (BPSK), quadrature phase shift keying (QPSK), M-phase shift keying (M-PSK), M-order quadrature amplitude modulation (M-QAM)). The coded and modulated symbols can then be split into parallel streams. Each stream can then be mapped to an OFDM subcarrier, multiplexed with a reference signal (e.g., a pilot) in the time and / or frequency domain, and then combined using an inverse fast Fourier transform (IFFT) to produce a physical channel carrying a time-domain OFDM symbol stream. The OFDM stream is spatially precoded to generate multiple spatial streams. Channel estimates from a channel estimator 374 may be used to determine the coding and modulation schemes and for spatial processing. Channel estimates may be derived based on a reference signal and / or channel condition feedback sent by the UE 350. Each spatial stream may then be provided to a different antenna 320 via a separate transmitter 318Tx. Each transmitter 318Tx may modulate a radio frequency (RF) carrier with a corresponding spatial stream for transmission.

[0068] At the UE 350, each receiver 354Rx receives a signal via its corresponding antenna 352. Each receiver 354Rx recovers the information modulated onto the RF carrier and provides the information to a receive (RX) processor 356. The TX processor 368 and the RX processor 356 implement layer 1 functions associated with various signal processing functions. The RX processor 356 can perform spatial processing on the information to recover any spatial streams destined for the UE 350. If multiple spatial streams are destined for the UE 350, they can be combined into a single OFDM symbol stream by the RX processor 356. The RX processor 356 then uses a fast Fourier transform (FFT) to convert the OFDM symbol stream from the time domain to the frequency domain. The frequency domain signal includes a separate OFDM symbol stream for each subcarrier of the OFDM signal. By determining the most likely signal constellation point transmitted by the base station 310, the symbols on each subcarrier and the reference signal are recovered and demodulated. These soft decisions can be based on the channel estimate calculated by the channel estimator 358. The soft decisions are then decoded and deinterleaved to recover the data and control signals originally sent on the physical channel by base station 310. The data and control signals are then provided to controller / processor 359 which implements layer 3 and layer 2 functionality.

[0069] The controller / processor 359 may be associated with a memory 360 that stores program codes and data. The memory 360 may be referred to as a computer-readable medium. In the UL, the controller / processor 359 provides demultiplexing between transport and logical channels, packet reassembly, decryption, header decompression, and control signal processing to recover IP packets. The controller / processor 359 is also responsible for error detection using ACK and / or NACK protocols to support HARQ operations.

[0070] Similar to the functions described in conjunction with DL transmissions performed by the base station 310, the controller / processor 359 provides: RRC layer functions associated with: system information (e.g., MIB, SIB) acquisition, RRC connection, and measurement reporting; PDCP layer functions associated with: header compression / decompression and security (encryption, decryption, integrity protection, integrity verification); RLC layer functions associated with: transmission of upper layer PDUs, error correction through ARQ, concatenation, segmentation and reassembly of RLC SDUs, resegmentation of RLC data PDUs, and reordering of RLC data PDUs; and MAC layer functions associated with: mapping between logical channels and transport channels, multiplexing of MAC SDUs onto TBs, demultiplexing of MAC SDUs from TBs, scheduling information reporting, error correction through HARQ, priority handling, and logical channel prioritization.

[0071] Channel estimates derived by the channel estimator 358 based on a reference signal or feedback transmitted by the base station 310 may be used by the TX processor 368 to select an appropriate coding and modulation scheme, and to facilitate spatial processing. The spatial streams generated by the TX processor 368 may be provided via separate transmitters 354Tx to different antennas 352. Each transmitter 354Tx may modulate an RF carrier with a corresponding spatial stream for transmission.

[0072] UL transmissions are processed at the base station 310 in a manner similar to that described in conjunction with the receiver functionality at the UE 350. Each receiver 318Rx receives a signal through its corresponding antenna 320. Each receiver 318Rx recovers information modulated onto an RF carrier and provides the information to the RX processor 370.

[0073] The controller / processor 375 may be associated with a memory 376 that stores program codes and data. The memory 376 may be referred to as a computer-readable medium. In the UL, the controller / processor 375 provides demultiplexing between transport and logical channels, packet reassembly, decryption, header decompression, and control signal processing to recover IP packets. The controller / processor 375 is also responsible for error detection using ACK and / or NACK protocols to support HARQ operations.

[0074] At least one of the TX processor 368, the RX processor 356, and the controller / processor 359 may be configured to perform operations related to Figure 1 The additional symbol cancellation component 198 is related to various aspects.

[0075] At least one of the TX processor 316, the RX processor 370, and the controller / processor 375 may be configured to perform operations related to Figure 1 The partial cancellation of various aspects related to the Tx detection component 199.

[0076] Figure 4 402b) in accordance with some aspects of the present disclosure. The present disclosure is a collection of diagrams (e.g., diagram 410, diagram 420, diagram 430, and diagram 440) illustrating modes of operation of a DSDA wireless device (e.g., UE 404) that may be used to communicate with a first RAN (e.g., RAN1 402a) and a second RAN (RAN2 402b) in accordance with some aspects of the present disclosure. Diagram 410 illustrates that UE 404 may be connected to RAN1 402a and RAN2 402b in standby mode at a first time. Diagram 420 illustrates that at a second time, UE 404 may be in active communication with RAN1 402a and in standby mode with RAN2 402b. Diagram 430 illustrates that at a third time, UE 404 may be in active communication with RAN2 402b and in standby mode with RAN1 402a. In some aspects, UE 404 may have two or more transceivers and may be in active communication with RAN1 402a and RAN2 402b at a fourth time.

[0077] As described above, the UE 404 may not be able to simultaneously transmit a first transmission to RAN1 402a and a second transmission to RAN2 402b (e.g., the second transmission overlapping the first transmission). In some aspects, the inability to transmit overlapping transmissions may be due to the wireless device's hardware being unable to transmit two different signals simultaneously (e.g., having one transceiver, one antenna, etc.) or based on external limitations (e.g., maximum allowable transmission power). Based on the inability to transmit two transmissions during the overlapping time period, the wireless device may cancel at least one transmission during the overlapping time period (e.g., may blank, null data tones, or refrain from transmitting during the overlapping time period), as described below with respect to Figure 5 and 6 described.

[0078] As follows about at least Figure 5-7As described, the method and apparatus can be used to identify situations where canceling a portion of a transmission may result in an undecodable or non-decodable transmission, which may potentially affect RV2, RV3, and / or RV1 retransmissions (e.g., making them undecodable or non-decodable). Based on this identification, in some aspects, the method and apparatus can cancel (e.g., blank or zero) an entire LTE subframe (or the remainder thereof) to utilize discontinuous transmission (DTx) detection at a network node (e.g., an eNB, gNB, base station, etc.). In some aspects, DTx detection can result in a new grant for the RV0 transmission associated with (partial or substantial portion of) the canceled transmission, thereby avoiding wasted resources associated with sending additional undecodable retransmissions.

[0079] For example, in some aspects, it may be the case that the blanking pattern and DMRS symbol positions are related to RV2 decodability at a set signal quality (e.g., a set signal-to-noise ratio (SNR), signal-to-interference-plus-noise ratio (SINR), or channel quality indicator (CQI)). Furthermore, in some aspects, an LTE PUSCH subframe includes two DMRS symbols around the middle of the slot (e.g., in the fourth symbol (symbol 3) and the eleventh symbol (symbol 10) in a group of 14 symbols from symbol 0 to symbol 13). In some aspects, canceling or blanking up to 3 symbols that do not include any DMRS symbols may not cause the RV2 retransmission to be undecodable at the set SNR (or SINR / CQI). However, canceling or blanking a portion of the slot (or subframe) that includes one DMRS symbol may negatively impact RV0 decodability and the decodability of subsequent RV2, RV3, and / or RV1 retransmissions (e.g., making the RV0 transmission and the RV2, RV3, and / or RV1 retransmissions non-decodable), and may also cause timing advance (TA) fluctuations. To avoid the problem of canceling a portion of a symbol including one DMRS, the method and apparatus may cancel additional symbols such that the (partially or completely canceled) transmission triggers DTx detection at a network node (e.g., an eNB, gNB, base station, etc.) and a grant (or request) for a subsequent RV0 (re)transmission. In some aspects, when two DMRS symbols are canceled, the negative impact of canceling one DMRS symbol is not experienced because canceling both DMRS symbols (and the intervening symbols) is expected to trigger DTx detection at the network node.

[0080] Figure 55 is a set of diagrams 500 and 550 illustrating examples of canceling or blanking symbols of a first transmission without canceling or blanking additional symbols based on an indication of a second transmission, in accordance with some aspects of the present disclosure. In some aspects, the cancellation or blanking may be performed by a wireless device operating in DSDA mode having one or more transceivers associated with two different RANs (e.g., RAN1 402a and RAN2 402b). In some aspects, the wireless device may determine to cancel a first transmission in favor of a second transmission based on the relative priorities of the overlapping transmissions (e.g., based on the associated RAN, data, or channel type or time period). For example, during a first time period, communications with a first network (e.g., RAN1 402a) may generally be assigned a higher priority than communications with a second network (e.g., RAN2 402b), while the relative (local) priorities may be reversed during a second time period. In some aspects, the local priorities may be considered along with the priorities of each communication when determining whether to cancel or blank (partially or completely) the first or second transmission.

[0081] Based on a determination to cancel a lower priority (e.g., first) transmission, the wireless device may determine a set of symbols for the lower priority transmission (e.g., a set of symbols that include at least symbols that overlap with a higher priority (e.g., second) transmission) to cancel. In some aspects, this determination may be made by a component of the wireless device, such as a grant management unit (GMU) that is aware of resource grants associated with different networks (e.g., RAN1 402a and RAN2 402b), and may include software configured to determine whether to cancel a transmission and / or which transmissions to cancel based on a conflict between transmissions associated with the two networks. In some aspects, overlapping symbols may be indicated for cancellation (e.g., by the GMU), while no additional symbols may be indicated for cancellation based on the lower priority (first) transmission being decodable (despite the cancellation of the overlapping symbols) or at least based on a subsequent retransmission (e.g., an RV2, RV3, or RV1 retransmission) being decodable. Although Figures 500 and 550 are discussed in terms of a first transmission associated with an LTE RAN and a second transmission associated with a 5G NR RAN, the first (lower priority) and second (higher priority) transmissions may be associated with any of the first LTE RAN, the second LTE RAN, the first 5G NR RAN, or the second 5G NR RAN.

[0082] Diagram 500 illustrates a first time slot associated with a first (LTE UL) transmission via an LTE resource set 510, the first (LTE UL) transmission colliding with a second (5G NR UL) transmission 525. In some aspects, the first transmission may be associated with a PUSCH, while the second transmission may be associated with any UL channel (e.g., PUCCH, PUSCH, PUFCH, etc.), UL transmission, DL channel (e.g., PDCCH or PDSCH), or DL ​​transmission. The wireless device may receive an NR grant (or gap) indication 520, which indicates an NR grant (or gap) start 521 and an NR grant (or gap) end 523 (e.g., the start and end, respectively, of resources associated with or used for the second transmission). Although shown as being received after the transmission start of the first transmission in the current time slot, the NR grant (or gap) indication 520 may be received before the current time slot. Based on the NR grant (or gap) indication 520, the wireless device may cancel a set of symbols 515 that partially or completely overlap with resources associated with the second transmission and send a second (5G NR UL) transmission 525 within the canceled symbols (e.g., via the resources indicated in the NR grant (or gap) indication 520). Because the canceled symbols do not include DMRS symbols, the first transmission may be partially decodable at a receiving device (e.g., a base station of the first RAN), allowing retransmissions (e.g., associated with subsequent redundancy values ​​RV2, RV3, or RV1) to be decodable based on the partially decoded first transmission. Therefore, no additional symbols may be canceled beyond the indicated set of symbols 515. In the above discussion, the indication of the resources associated with the second transmission is referred to as the NR grant (or gap) indication 520, which includes the NR grant (or gap) start 521 and the NR grant (or gap) end 523, because the grant of resources is aligned with the gap (the canceled symbols) associated with the grant for the second communication.

[0083] Diagram 550 illustrates a first time slot associated with a first (LTE UL) transmission via an LTE resource set 560, the first (LTE UL) transmission colliding with a second (5G NR UL) transmission 575. In some aspects, the first transmission may be associated with a PUSCH, while the second transmission may be associated with any UL channel (e.g., PUCCH, PUSCH, PUFCH, etc.), UL transmission, DL channel (e.g., PDCCH or PDSCH), or DL ​​transmission. The wireless device may receive an NR grant (or gap) indication 570, which indicates an NR grant (or gap) start 571 and an NR grant (or gap) end 573 (e.g., the start and end of the second transmission, respectively). Although shown as being received before the start of transmission of the first transmission in the current time slot, the NR grant (or gap) indication 570 may be received after the start of the current time slot and before the second (5G NR UL) transmission 575. Based on the NR grant (or gap) indication 570, the wireless device may cancel a symbol set 565 (e.g., overlapping symbols) and send a second (5G NR UL) transmission 575 within the canceled symbols. Since the canceled symbols include two DMRS symbols (e.g., symbol 3 and symbol 10) in the current slot, the first transmission may not be recognized and / or detected at the receiving device (e.g., a base station of the first RAN), so that subsequent retransmissions may be associated with the redundancy value RV0 (e.g., the RV associated with the initial transmission) in the subsequent grant because the receiving device fails to detect any transmission that may trigger a transition to the next RV value (e.g., RV2, RV3, or RV1) for retransmission. Therefore, no additional symbols may be canceled beyond the indicated symbol set 565.

[0084] Figure 6 is a set of diagrams 600 and 650 illustrating examples of canceling or blanking a set of symbols of a first transmission based on an indication of a second transmission in accordance with some aspects of the present disclosure, wherein the set of symbols includes a set of overlapping symbols (e.g., symbols associated with the first transmission or symbols of the first transmission that at least partially overlap with resources associated with the indicated second transmission) and one or more additional symbols. In some aspects, the resources associated with the second transmission may include resources for sending the second transmission and gaps or guard bands, resources in one or more of time and / or frequency that may not be used to send the first transmission. As described with respect to Figure 5As described, in some aspects, cancellation or blanking can be performed by a wireless device (or a GMU of a wireless device) operating in DSDA mode with one or more transceivers associated with two different RANs based on the relative priorities of overlapping transmissions. In some aspects, additional symbols can be canceled along with symbols that overlap with resources associated with the second transmission based on the fact that the first transmission is undecodable (if the overlapping symbols are canceled) and a subsequent retransmission (e.g., using a different RV, such as RV2, RV3, or RV1) is also undecodable (if the overlapping symbols are canceled in the first transmission). Although diagrams 600 and 650 are discussed with respect to a first transmission associated with an LTE RAN and a second transmission associated with a 5G NR RAN, the first (lower priority) and second (higher priority) transmissions can be associated with any of the first LTE RAN, the second LTE RAN, the first 5G NR RAN, or the second 5G NR RAN.

[0085] Diagram 600 illustrates a first time slot associated with a first (LTE UL) transmission via a set of LTE resources 610, the first (LTE UL) transmission colliding with a second (5G NR UL) transmission 625. The wireless device may receive an NR grant indication 620 indicating an NR grant start 621 and an NR grant end 623 (e.g., the start and end of the resources associated with or used for the second transmission, respectively). Figure 5 In the discussion of , the indication of the resources associated with the second transmission is referred to as an NR grant (or gap) indication 520 (or 570), which includes an NR grant (or gap) start 521 (or 571) and an NR grant (or gap) end 523 (or 573), because the grant of resources is aligned with the granted gap (canceled symbols) associated with the second communication. However, for the following Figure 6 In the discussion above, a distinction is made between the NR grant indication 620 and the NR gap indication 670, which can be generated at the wireless device (e.g., by the GMU) based on the NR grant indication 620. Similarly, the NR grant start 621 and the NR grant end 623 can be distinguished from the NR gap start 671 (or NR gap start 672) and the NR gap end 673 (or NR gap end 674), as the start time and end time indicated by the NR grant indication 620 and the NR gap indication 670, respectively.

[0086] For example, the wireless device may receive a grant of resources for a second transmission (e.g., an NR grant indication 620) that spans a time period between an NR grant start 621 and an NR grant end 623 (e.g., the start and end of the resources granted for the second transmission, respectively). Although shown as being received after the start of transmission of the first transmission in the current time slot, the NR grant indication 620 may be received before the current time slot. Based on the NR grant indication 620, the wireless device may identify symbols for cancellation 615 (e.g., may identify overlapping symbols between the first and second transmissions). The identified symbols may comprise a minimum set of symbols for sending the second (5G NR UL) transmission 625 without interfering with or colliding with the first transmission.

[0087] The wireless device (or a grant management unit (GMU) of the wireless device) may identify that the symbols used for cancellation 615 may meet a set of one or more criteria indicating that the first transmission may be undecodable at a receiving device having the cancelled symbols and may cause subsequent retransmissions (e.g., using a different RV, such as RV2, RV3, or RV1) based on the cancelled symbols of the first transmission to also be undecodable at the receiving device. In some aspects, the set of criteria may include a number of cancelled symbols exceeding a threshold number of symbols or whether the cancelled symbols include DMRS symbols. In some aspects, the threshold number of symbols may be based on an MCS, SNR, SINR, or CQI associated with the first communication. In some aspects, the set of criteria may include a channel associated with the first communication, such as the channel being a PUSCH.

[0088] Diagram 650 shows that based on the symbols for cancellation 615 (or overlapping symbols 665) meeting one or more criteria in a set of criteria (e.g., including more than a threshold number of symbols or one DMRS symbol out of two DMRS symbols), the wireless device may determine to cancel one or more of the additional symbols 677 or the additional symbols 679 in the LTE resource set 660. Based on this determination, the wireless device (or GMU) may provide an NR gap indication 670, which may follow the NR grant indication 620 by a processing time (e.g., t proc) and indicates one of NR gap start 671 or NR gap start 672 (e.g., indicating the start of the canceled symbols) and NR gap end 673 or NR gap end 674 (e.g., indicating the end of the canceled symbols). Additional symbols 677 and 679 may include symbols preceding and following, respectively, the symbol for cancellation 615 indicated by NR grant indication 620. In some aspects, additional symbols 677 and 679, along with the symbol for cancellation 615, may include all symbols following the symbol in which NR gap indication 670 was provided and / or received (e.g., by a component of the wireless device implementing the cancellation), or may include all symbols (not shown) in the time slot including the second transmission, e.g., if NR gap indication 670 was received in a previous time slot and indicated that all symbols of the time slot associated with the second transmission may be (or are) canceled. In some aspects, one of the additional symbol sets (e.g., additional symbols 677 or 679) may be canceled without canceling the other additional symbol set (e.g., additional symbols 679 or 677, respectively). For example, canceling the overlapping symbols 665 and the additional symbols 677 (or additional symbols 679) may result in the cancellation of a sufficient number of canceled symbols (or types of canceled symbols, such as DMRS or SRS symbols) to cause a network node (e.g., a base station) receiving the transmitted symbols to detect a discontinuous transmission (e.g., detect a skipped time slot, or fail to detect the first transmission). In such cases, the overlapping symbols 665 and the additional symbols 677 (or additional symbols 679) may be canceled, while the additional symbols 679 (or additional symbols 677) may not be canceled. In some aspects, different combinations of canceled symbols may be indicated by different combinations of NR gap start 671 or 672 and NR gap end 673 and 674 (where the indication of the NR gap defined by NR gap start 672 and NR gap end 674 is in Figure 6 is probably not envisioned as an option because it may be irrelevant, in which case the resulting transmission may not be decodable and may render subsequent transmissions also undecodable, as described above).

[0089] Figure 7Graph 700 illustrates a metric for decodability of an RV2 retransmission without blanking after an RV0 transmission with N blanked symbols for a given MCS, in accordance with aspects of the present disclosure. In some aspects, the metric for decodability may be the difference between a minimum SNR (e.g., SNR0) for decoding an RV0 transmission at a 10% block error rate (BLER) (e.g., as an example of a signal quality measure) and a minimum SNR (e.g., SNR2) for decoding a subsequent RV2 retransmission without BLER. A positive value for the difference (e.g., SNR0-SNR2) in graph 700 indicates that a subsequent (RV2) retransmission sent and / or received at the same SNR (e.g., SNR0) as the original (RV0) transmission may be decodable (e.g., may be sent at an SNR higher than the minimum SNR (SNR2) for decodability of the retransmission) if the initial (RV0) transmission was sent and / or received at the minimum SNR (e.g., SNR0), in accordance with aspects of the present disclosure. Conversely, a negative value indicates that the minimum SNR for decodability of the (RV2) retransmission (e.g., SNR2) is greater than the minimum SNR for the original (RV0) transmission to be decoded at 10% BLER (e.g., SNR0). Therefore, unless the original (RV0) transmission is sent at a SNR greater than the minimum SNR (e.g., SNR0), the (RV2) retransmission sent at the same SNR as the original transmission may not be decodable. At some combinations of canceled symbols and MCS (identified by an index indicating the MCS, e.g., in the DCI), the (RV2) retransmission may not be decodable even with an SNR as high as 40 dB.

[0090] Therefore, whether to cancel the Figure 5 and 6 The determination of the additional symbols for the first transmission discussed may depend on the number of symbols to be cancelled (e.g., the number of symbols associated with the second higher priority transmission). In some aspects, the determination may also depend on one or more of the following: an MCS associated with the first transmission (and / or subsequent retransmissions), a BLER associated with the first transmission, or one of an SNR, SINR, or CQI. In some aspects, the determination may also be based on whether the cancelled symbols include DMRS symbols and whether the first transmission is associated with a PUSCH.

[0091] For example, for a first transmission sent at an SNR 1.0 dB higher than a minimum SNR (e.g., SNR0) and associated with MCS indices 14-16, the threshold number of cancelled symbols that do not include DMRS symbols may be 6. However, for a first transmission sent at an SNR equal to the minimum SNR (e.g., SNR0) and associated with the same MCS index (e.g., MCS indices 14-16), the threshold number of cancelled symbols that do not include DMRS symbols may be 5, while for higher MCS index values, the threshold number may be 4 (e.g., for an MCS index value of 20) or 3 (e.g., for MCS index values ​​22-26). Thus, the threshold number of cancelled symbols regarding whether to cancel a transmission is not determined. Figure 5 and 6 The determination of additional symbols for the first transmission in question may be based on the SNR and MCS associated with the first (RV0) transmission (and subsequent (RV2) retransmissions).

[0092] Figure 8 800 is a call flow diagram of a method for canceling symbols of a first transmission from a wireless device (e.g., UE 804) based on a collision with a second transmission from (or to) the wireless device, in accordance with some aspects of the present disclosure. In some aspects, UE 804 is capable of operating in DSDA mode and may include a first transceiver Tr1 806 and a second transceiver Tr2 807. In some aspects, the two transceivers Tr1 806 and Tr2 807 may be used to connect to two different RANs, e.g., RAN1 802a and RAN2 802b. In some aspects, in the DSDA mode of operation, the two transceivers Tr1 806 and Tr2 807 may be replaced by a single transceiver capable of communicating with the two different RANs (RAN1 802a and RAN 802b). In some aspects, the UE 804 may also include a GMU 805, which may provide grant management functionality for the UE 804, e.g., may store and / or execute software for resolving conflicting grants for resources from two different RANs (or from the same RAN). Although the following discussion may enumerate transmissions from a particular RAN, it is understood that the transmissions may be from a network node, network device, or network component of the RAN (such as a base station).

[0093] RAN1 802a may send, and UE 804 may receive, via Tr1 806, a first grant 808 for a first set of resources for a first communication (e.g., a PUSCH) associated with RAN1 802a. Sending the first grant 808 may include sending DCI for scheduling the first (PUSCH) communication (or transmission) via the first set of resources (e.g., via a start and length indicator value (SLIV) and a frequency domain resource allocation (FDRA) or resource indication value (RIV)), an indication of an MCS associated with the first communication, and a redundancy version value (e.g., a two-bit indicator having a value ranging from 0 to 3), as well as other information (e.g., as defined for DCI format 0_0 or other DCI formats for scheduling PUSCH communications). The indication of the first set of resources may be provided to the GMU 805 as a first set of resources 810 based on the information included in the first grant 808. Although shown as being provided from the first transceiver Tr1 806, in some aspects, the first set of resources 810 can be provided to the GMU 805 as part of processing and decoding the first grant 808 and can be provided from a component other than the transceiver. Based on the first grant 808, the UE 804 can send a start of a first communication via the first transceiver Tr1 806. In some aspects, the start of the first communication 812 can alternatively be the start of a particular time slot or subframe for the first communication 812.

[0094] After the start of transmitting the first communication 812 (as shown), or before the start of transmitting the first communication 812, the UE 804 may receive (e.g., via a second DCI) a second grant 814 for a second set of resources for a second communication associated with RAN2 802b. The second set of resources may overlap with the set of symbols associated with the first communication in one or more of time and / or frequency. An indication of the second set of resources may be obtained by the GMU 805 as a second set of resources 816 based on information included in the second grant 814. Although shown as being provided from the second transceiver Tr2 807, in some aspects, the GMU 805 may obtain the second set of resources 816 as part of processing and decoding the second grant 814 at the UE 804 and may be provided from a component of the UE 804 other than the transceiver.

[0095] Based on the indication of the first set of resources 810 and the indication of the second set of resources 816 obtained by the GMU 805, the GMU 805 may determine, at 818, to cancel a set of symbols for the first communication. As described above, in some aspects, the determination to cancel the set of symbols may include a first determination that the second communication has a higher priority than the first communication. In some aspects, the first determination that the second communication has a higher priority than the first communication may be based on a local priority and / or a priority associated with a channel (e.g., PUCCH vs. PUSCH) or a communication type (e.g., eMBB vs. URLLC) associated with each of the first and second communications.

[0096] Assuming the first communication is determined to have a lower priority than the second communication, at 818, in some aspects, the determination may also include determining a set of symbols of the first communication to be canceled. In some aspects, the determination of the set of symbols of the first communication to be canceled at 818 may include a determination as to whether canceling or blanking symbols of the first communication that overlap with the second communication is likely to cause the first communication and subsequent retransmissions to be undecodable by RAN1 802a (or a network node of RAN1 802a that receives the first communication in which the overlapping symbols are canceled). In some aspects, the determination of the likelihood that the partially canceled first communication is undecodable may be based on one or more of: the number of overlapping symbols to be canceled, whether the overlapping symbols include DMRS symbols, an MCS associated with the first communication, and / or a signal quality (e.g., SNR, SINR, or CQI) associated with the first communication, as described above with respect to Figure 6 and 7 In some aspects, the determination at 818 is also based on determining that the first communication is associated with a PUSCH.

[0097] As described above, the symbol set may be determined at 818 to include one or more symbols of the first communication indicated as overlapping with the second set of resources 816. In some aspects, the symbol set to be canceled may include additional symbols of a time slot or subframe that includes or overlaps with the second transmission after receiving the second grant 814 and before or after the symbols of the first communication indicated as overlapping with the second set of resources 816. In some aspects, the additional symbols may be selected, determined, and / or identified to trigger DTx detection by RAN1 802a (e.g., so that the network node of RAN1 802a does not detect the transmission of the first transmission in the time slot or subframe that includes the second communication). Based on the determination at 818, the GMU 805 may output an indication 820 to cancel the symbol set for the first communication, and the first transceiver Tr1 806 may output the indication 820.

[0098] Based on the indication 820 to cancel the symbol set, UE 804 (or Tr1 806) may refrain from transmitting the symbol set for the remainder of the first communication (or the remainder of the current time slot or subframe) at 822. During the period in which UE 804 (or Tr1 806) refrains from transmitting the first communication, UE 804 (or Tr2 807) may transmit, and RAN2 802b may receive, a second communication 824. Following the transmission, an additional portion of the first communication (not shown) may be transmitted, and RAN1 802a may detect DTx (e.g., may fail to detect a transmission) during the time slot or subframe that includes the canceled symbols at 826. Based on the DTx detected at 826, RAN1 802a may transmit, and UE 804 (or Tr 806) may receive (e.g., via DCI) an additional resource grant 828 for transmission of the first communication (e.g., a request for the first communication). In some aspects, the additional resource grant 828 may include an RV of 0, and the UE 804 may send (eg, via Tr1 806 ) a first communication 830 based on the indicated RV of 0, and the RAN1 802a may receive the first communication 830 .

[0099] As described above, based on including the additional symbols in the canceled set of symbols, in some aspects, the additional resource grant 828 may include a different RV than if the additional symbols had not been included in the canceled set of symbols (e.g., an RV of 0 instead of an RV of 2). For example, if the additional symbols had not been included in the canceled set of symbols, RAN1 802a (or the network node of RAN1 802a) may have received and / or detected an amount of energy associated with the first communication that was greater than a threshold energy amount indicating a transmission and assumed that the first communication was completely sent. RAN1 802a (or the network node of RAN1 802a) may have attempted and failed to decode the first communication, where the failure may be based at least in part on the canceled set of symbols. Based on the failure to decode the first communication, RAN1 802a (or the network node of RAN1 802a) may have sent a subsequent grant for a retransmission with an RV indicated as 2 based on the assumption that the first communication was completely transmitted, and due to the set of symbols that were cancelled (not including the additional symbol), RAN1 802a (or the network node of RAN1 802a) may not be able to decode the retransmission or the additional retransmission. Therefore, by canceling the additional symbol, in some aspects, the method can avoid the set of failed retransmissions by causing RAN1 802a to not detect the transmission and send a decodable additional resource grant 828 with an RV indicated as 0, wherein the additional grant for the retransmission with an RV indicated as 2 may not be decodable.

[0100] Figure 9 900 is a flow chart of a method of wireless communication. The method may be performed by a wireless device such as a UE (e.g., UE 104 or 804; apparatus 1204). At 902, the UE may operate a first transceiver in a first connection mode with a RAN and operate a second transceiver in a second connection mode with a second RAN. For example, 902 may be performed by Figure 12 The first and second transceivers may be the same transceiver for communicating (or connecting) with both the first RAN and the second RAN. For example, referring to Figure 8 , UE 804 may include two transceivers Tr1 806 and Tr2 807 connected to RAN1 802a and RAN2 802b, respectively.

[0101] In some aspects, the UE may receive a first grant for a first set of resources for a first communication from a network node associated with the first RAN. In some aspects, the first communication may be associated with a first priority based on a priority associated with a particular type of communication (e.g., eMBB, URLLC, etc.) and a locally assigned priority that is independent of the priority associated with the particular type of communication. In some aspects, the first communication may include a plurality of symbols in at least one timeslot or subframe. In some aspects, the first grant may also include an RV of 0 associated with the initial transmission, wherein the RV indicates an amount of redundancy to be used when sending the first communication or a format for introducing redundancy. For example, with reference to Figure 5 、 Figure 6 and Figure 8 , UE 804 may receive a first grant 808 indicating a set of resources for a first (LTE UL) communication, which includes at least Figure 5 and Figure 6 The time slots (and symbols) shown in the LTE resource sets 510, 560, 610 and / or 660.

[0102] The UE may also receive, from the second network node, via the second transceiver, a second grant for a second set of resources for a second communication associated with the second RAN. In some aspects, the second communication may be associated with a second priority based on a priority associated with a particular type of communication (e.g., eMBB, URLLC, etc.) and a locally assigned priority that is independent of the priority associated with the particular type of communication. In some aspects, the second communication may have a higher relative priority than the first communication (e.g., the second priority may be higher than the first priority). In some aspects, the second communication may include resources that temporally overlap with one or more symbols of a plurality of symbols in at least one time slot or subframe associated with the first communication. In some aspects, the UE may not be able to send both the first communication and the second communication during the time period in which they overlap. For example, with reference to Figure 5 、 Figure 6 and Figure 8 , the UE 804 may receive a second grant 814 indicating a set of resources for a second communication 824 (or a second (5G NR UL) transmission 525, 575, or 625) that were included in the first grant 808 and that were used for Figure 5 and Figure 6 At least a portion of the time slots (and symbols) shown in the LTE resource sets 510, 560, 610 and / or 660 for the first communication.

[0103] At 908, the UE may begin sending a first communication via the first transceiver. For example, 908 may be performed by Figure 12 1206, cellular baseband processor 1224, transceiver 1222, antenna 1280, and / or additional symbol cancellation component 198. In some aspects, starting to transmit the first communication at 908 can be via the first set of resources indicated by the first grant. In some aspects, starting to transmit the first communication at 908 can include transmitting one or more time slots and / or subframes before receiving the second grant or before reaching a symbol or subframe in which overlap with the second communication occurs. For example, referring to Figure 5 、 Figure 6 and Figure 8 , UE 804 may, for example, via Figure 5 and 6 The start of a first communication 812 is sent via the first transceiver Tr1 806 at the symbol (symbol 0 or symbols 0 and 1) shown in the LTE resource set 510 , 560 , 610 and / or 660 of LTE.

[0104] The UE (or a component of the UE, such as a GMU) may determine a set of symbols to cancel based on the grant for the second set of resources. In some aspects, determining the set of symbols to cancel includes multiple determinations. In some aspects, the UE may first determine that the UE cannot transmit the first communication and the second communication simultaneously. In some aspects, the determination that the UE cannot transmit the first communication and the second communication simultaneously may be based on hardware limitations or may be based on a maximum allowable transmission power exceeded when transmitting the first communication and the second communication simultaneously (e.g., when the power associated with transmitting the first communication and the second communication simultaneously exceeds a threshold power). The UE may then determine (at least in part) which communication to cancel. In some aspects, the determination of which communication to cancel may be based on the relative priority of the communications, which in turn may be based on a locally assigned priority for communications associated with each RAN and a priority associated with each particular communication (e.g., based on the communication type or channel). As described above, for the purposes of the following discussion, it is assumed that the first communication has a lower priority and is therefore canceled (or blanked, cleared, etc.) in favor of the second communication.

[0105] In some aspects, the determination of the set of symbols to cancel may also include a determination that the first communication is associated with a PUSCH. If the first communication is not associated with a PUSCH, the method may simply cancel the overlapping symbols and not consider whether additional symbols can be canceled. After making the above (preliminary) determination, in some aspects, the UE (or GMU) may then proceed to determine the set of symbols for the first communication to cancel. In some aspects, the determination of the set of symbols for the first communication to cancel may include identifying a set of one or more symbols that overlap with a second set of resources for the second communication based on the second resource grant. Based on the identified one or more symbols, the UE may determine whether canceling or blanking the set of one or more symbols of the first communication that overlap with the second communication may cause the first communication and subsequent retransmissions to be undecodable by the first RAN (or a network node of the first RAN that receives the first communication in which the overlapping symbols are canceled). In some aspects, the determination of the likelihood that the partially canceled first communication is undecodable can be based on one or more of: the number of overlapping symbols to be canceled (i.e., based on a threshold number of symbols), whether the overlapping symbols include DMRS symbols, the MCS associated with the first communication, the signal quality associated with the first communication (e.g., SNR, SINR, or CQI), and / or the BLER associated with the first communication. For example, with reference to Figure 5-8 , the UE 804 (or GMU 805) may determine at 818 a set of symbols to cancel (e.g., the set of symbols 515, the set of symbols 565, and / or a combination of one or both of the overlapping symbols 665 and the additional symbols 677 or 679). In some aspects, the determination at 818 may be based on Figure 7 data in the first communication, the signal quality of the first communication (e.g., SNR, SINR, CQI, or BLER), the MCS associated with the first communication, and Figure 5 and Figure 6 The number (and nature) of overlapping symbols shown in schematic diagrams 500, 550, 600 and 650.

[0106] At 912, the UE may obtain an indication of a cancellation of a set of symbols used for the first communication. For example, 912 may be performed by Figure 12 The UE may include an application processor 1206, a cellular baseband processor 1224, a transceiver 1222, an antenna 1280, and / or an additional symbol cancellation component 198. In some aspects, the set of symbols may include one or more symbols that at least partially overlap with the second communication. In some aspects, the indication may be based on a second communication via the second transceiver (e.g., based on a second grant for a second set of resources associated with the second communication). In some aspects, the indication may be obtained from a component of the UE that determines the set of symbols to be cancelled (e.g., a GMU). In some aspects, the second grant may be a first indication to cancel one or more overlapping symbols, which may then be analyzed to determine whether to cancel the additional symbols and generate the indication obtained at 912 to cancel the set of symbols (e.g., the determined set of symbols). The indication of the set of symbols to be cancelled may be explicit (e.g., identifying specific symbols for cancellation) or implicit (e.g., identifying criteria for cancellation). As an example of an implicit indication of the set of symbols, in some aspects, the indication may include an indication to cancel all symbols in a time slot containing one or more overlapping symbols after the indication obtained at 912. For example, if the indication obtained at 912 is received after the transmission of the first symbol in a time slot with overlapping symbols, it may indicate or cause subsequent symbols of the time slot to be cancelled, or if the indication at 912 is obtained before the start of a time slot with overlapping symbols, it may indicate or cause all symbols of the time slot to be cancelled. Figure 6 and 8 , the UE 804 may obtain an indication 820 to cancel a set of symbols of the first communication (corresponding to the NR gap indication 670) and may cancel all subsequent symbols of the current time slot based on an explicit or implicit indication.

[0107] At 914, the UE may refrain from transmitting the remainder of the first communication via a set of symbols comprising one or more symbols based on the indication obtained at 912. For example, 914 may be performed by Figure 121206, cellular baseband processor 1224, transceiver 1222, antenna 1280, and / or additional symbol cancellation component 198. In some aspects, the set of symbols includes one or more overlapping symbols of the remainder of the first communication and one or more additional symbols. In some aspects, the one or more additional symbols may include at least one symbol preceding the one or more symbols and / or at least one symbol following the one or more symbols. As discussed above, the cancellation of the one or more additional symbols (e.g., including the one or more additional symbols in the set of symbols) may be based on the one or more (overlapping) symbols satisfying the set of one or more criteria. For example, with reference to Figure 6 and Figure 8 , UE 804 may avoid sending a set of symbols for the remainder of the first communication (eg, additional symbol 677, overlapping symbol 665, and additional symbol 679) based on indication 820 (or NR gap indication 670) at 822.

[0108] The UE may transmit the second communication via one or more (overlapping) symbols. As described above, in some aspects, the second communication may be associated with a second set of resources rather than additional symbols that may be included in the set of symbols canceled for the first communication, the second set of resources overlapping the one or more (overlapping) symbols. Accordingly, in some aspects, the second communication may be transmitted via one or more (overlapping) symbols rather than the one or more additional symbols. For example, with reference to Figure 6 and Figure 8 , the UE 804 may send a second communication 824 (or a second (5G NRUL) transmission 625) via the overlapping symbol 665 (instead of the additional symbols 677 or 679).

[0109] The UE may also receive an additional grant for an additional set of resources for the first communication from a network node associated with the first RAN. In some aspects, the additional grant for the additional set of resources for the first communication may indicate an RV associated with the initial transmission (an RV of 0). In some aspects, the indication of an RV of 0 may be based on the wireless device refraining from transmitting a remaining portion of the first communication via the set of symbols such that the network node associated with the first RAN detects DTx (e.g., fails to detect a transmission via the first set of resources). For example, with reference to Figure 8 , UE 804 may receive additional resource grant 828 indicating an RV of 0. Thus, the UE may retransmit the first communication via the additional set of resources after sending the second communication. In some aspects, the retransmission may be based on an RV of 0, thereby allowing the retransmission to be decodable at a network node associated with the first RAN. For example, referring to Figure 8 , UE 804 may send the first communication 830 based on an RV of 0.

[0110] Figure 10 1000 is a flow chart of a method of wireless communication. The method may be performed by a wireless device such as a UE (e.g., UE 104 or 804; apparatus 1204). At 1002, the UE may operate a first transceiver in a first connection mode with a RAN and operate a second transceiver in a second connection mode with a second RAN. For example, 1002 may be performed by Figure 12 The first and second transceivers may be the same transceiver for communicating (or connecting) with both the first RAN and the second RAN. For example, referring to Figure 8 , UE 804 may include two transceivers Tr1 806 and Tr2 807 connected to RAN1 802a and RAN2 802b respectively.

[0111] At 1004, the UE may receive a first grant for a first set of resources for a first communication from a network node associated with a first RAN. For example, 1004 may be performed by Figure 12 1206, cellular baseband processor 1224, transceiver 1222, antenna 1280, and / or additional symbol cancellation component 198. In some aspects, the first communication may be associated with a first priority based on a priority associated with a particular type of communication (e.g., eMBB, URLLC, etc.) and a locally assigned priority that is independent of the priority associated with the particular type of communication. In some aspects, the first communication may include a plurality of symbols in at least one time slot or subframe. In some aspects, the first grant may also include an RV of 0 associated with the initial transmission, wherein the RV indicates an amount of redundancy to be used when sending the first communication or a format for introducing redundancy. For example, with reference to Figure 5 、 Figure 6 and Figure 8 , UE 804 may receive a first grant 808 indicating a set of resources for a first (LTE UL) communication, which includes at least Figure 5 and Figure 6 The time slots (and symbols) shown in the LTE resource sets 510, 560, 610 and / or 660.

[0112] At 1006, the UE may receive, via the second transceiver, from the second network node a second grant for a second set of resources for a second communication associated with the second RAN. Figure 12The second communication may be performed by the application processor 1206, the cellular baseband processor 1224, the transceiver 1222, the antenna 1280 and / or the additional symbol cancellation component 198. In some aspects, the second communication may be associated with a second priority based on a priority associated with a particular type of communication (e.g., eMBB, URLLC, etc.) and a locally assigned priority that is independent of the priority associated with the particular type of communication. In some aspects, the second communication may have a higher relative priority than the first communication (e.g., the second priority may be higher than the first priority). In some aspects, the second communication may include resources that overlap in time with one or more symbols of a plurality of symbols in at least one time slot or subframe associated with the first communication. In some aspects, the UE may not be able to send both the first communication and the second communication during the time period in which they overlap. For example, with reference to Figure 5 、 Figure 6 and Figure 8 , the UE 804 may receive a second grant 814 indicating a set of resources for a second communication 824 (or a second (5G NR UL) transmission 525, 575, or 625) that were included in the first grant 808 and that were used for Figure 5 and Figure 6 At least a portion of the time slots (and symbols) shown in the LTE resource sets 510, 560, 610 and / or 660 for the first communication.

[0113] At 1008, the UE may begin sending a first communication via the first transceiver. For example, 1008 may be performed by Figure 12 1004. Figure 5 、 Figure 6 and Figure 8 , UE 804 may, for example, via Figure 5 and 6 The start of a first communication 812 is sent via the first transceiver Tr1 806 at the symbol (symbol 0 or symbols 0 and 1) shown in the LTE resource set 510 , 560 , 610 and / or 660 of LTE.

[0114] At 1010, the UE (or a component of the UE, such as a GMU) may determine a set of symbols to cancel based on the grant for the second set of resources. For example, 1010 may be performed by Figure 12 The UE may determine the set of symbols to be canceled by the application processor 1206, the cellular baseband processor 1224, and / or the additional symbol cancellation component 198. In some aspects, determining the set of symbols to be canceled at 1010 includes multiple determinations. In some aspects, the UE may first determine that the UE is unable to transmit the first communication and the second communication simultaneously. In some aspects, the determination that the UE is unable to transmit the first communication and the second communication simultaneously may be based on hardware limitations or may be based on a maximum allowable transmission power exceeded when transmitting the first communication and the second communication simultaneously (e.g., when the power associated with transmitting the first communication and the second communication simultaneously exceeds a threshold power). The UE may then determine (at least in part) which communication to cancel. In some aspects, the determination of which communication to cancel may be based on the relative priority of the communications, which in turn may be based on a locally assigned priority for communications associated with each RAN and a priority associated with each particular communication (e.g., based on the communication type or channel). As described above, for the purposes of the following discussion, it is assumed that the first communication has a lower priority and is therefore canceled (or blanked, cleared, etc.) in favor of the second communication.

[0115] In some aspects, the determination at 1010 may also include a determination that the first communication is associated with a PUSCH. If the first communication is not associated with a PUSCH, the method may simply cancel overlapping symbols and not consider whether additional symbols may be canceled. After making the aforementioned (preliminary) determination, in some aspects, the determination at 1010 may then proceed to determine a set of symbols for the first communication to be canceled. In some aspects, the determination at 1010 of the set of symbols for the first communication to be canceled may include identifying a set of one or more symbols that overlap with the second set of resources for the second communication based on receiving the second resource grant at 1006. Based on the identified one or more symbols, the UE may determine at 1010 whether canceling or blanking the set of one or more symbols of the first communication that overlap with the second communication may cause the first communication and subsequent retransmissions to be undecodable by the first RAN (or a network node of the first RAN that receives the first communication with the overlapping symbols canceled). In some aspects, the determination of the likelihood that the partially canceled first communication is undecodable can be based on one or more of: the number of overlapping symbols to be canceled (i.e., based on a threshold number of symbols), whether the overlapping symbols include DMRS symbols, the MCS associated with the first communication, the signal quality associated with the first communication (e.g., SNR, SINR, or CQI), and / or the BLER associated with the first communication. For example, with reference to Figure 5-8, the UE 804 (or GMU 805) may determine at 818 a set of symbols to cancel (e.g., the set of symbols 515, the set of symbols 565, and / or a combination of one or both of the overlapping symbols 665 and the additional symbols 677 or 679). In some aspects, the determination at 818 may be based on Figure 7 data in the first communication, the signal quality of the first communication (e.g., SNR, SINR, CQI, or BLER), the MCS associated with the first communication, and Figure 5 and Figure 6 The number (and nature) of overlapping symbols shown in schematic diagrams 500, 550, 600 and 650.

[0116] At 1012, the UE may obtain an indication of a cancellation of a set of symbols used for the first communication. For example, 1012 may be performed by Figure 12 The UE may include an application processor 1206, a cellular baseband processor 1224, a transceiver 1222, an antenna 1280, and / or an additional symbol cancellation component 198. In some aspects, the set of symbols may include one or more symbols that at least partially overlap with the second communication. In some aspects, the indication may be based on a second communication via the second transceiver (e.g., based on a second grant for a second set of resources associated with the second communication). In some aspects, the indication may be obtained from a component of the UE (e.g., a GMU) that determines the set of symbols to be cancelled at 1010. In some aspects, the second grant received at 1006 may be a first indication to cancel one or more overlapping symbols, which may then be analyzed to determine at 1010 whether to cancel the additional symbols and generate an indication obtained at 1012 to cancel the set of symbols (e.g., the set of symbols determined at 1010). The indication of the set of symbols to be cancelled may be explicit (e.g., identifying specific symbols for cancellation) or implicit (e.g., identifying criteria for cancellation). As an example of an implicit indication of a set of symbols, in some aspects the indication may include an indication to cancel all symbols in a time slot containing one or more overlapping symbols after the indication obtained at 1012. For example, if the indication obtained at 1012 is received after the transmission of the first symbol in a time slot having overlapping symbols, it may indicate or cause subsequent symbols of the time slot to be cancelled, or if the indication at 1012 is obtained before the start of a time slot having overlapping symbols, it may indicate or cause all symbols of the time slot to be cancelled. For example, with reference to Figure 6 and 8 , the UE 804 may obtain an indication 820 to cancel a set of symbols of the first communication (corresponding to the NR gap indication 670) and may cancel all subsequent symbols of the current time slot based on an explicit or implicit indication.

[0117] At 1014, the UE may refrain from transmitting the remaining portion of the first communication via a set of symbols comprising one or more symbols based on the indication obtained at 1012. For example, 1014 may be performed by Figure 12 1206, cellular baseband processor 1224, transceiver 1222, antenna 1280, and / or additional symbol cancellation component 198. In some aspects, the set of symbols includes one or more overlapping symbols of the remainder of the first communication and one or more additional symbols. In some aspects, the one or more additional symbols may include at least one symbol preceding the one or more symbols and / or at least one symbol following the one or more symbols. As discussed above, the cancellation of the one or more additional symbols (e.g., including the one or more additional symbols in the set of symbols) may be based on the one or more (overlapping) symbols satisfying the set of one or more criteria. For example, with reference to Figure 6 and Figure 8 , UE 804 may avoid sending a set of symbols for the remainder of the first communication (e.g., additional symbol 677, overlapping symbol 665, and additional symbol 6710) based on indication 820 (or NR gap indication 670) at 822.

[0118] At 1016, the UE may send a second communication via one or more (overlapping) symbols. For example, 1016 may be composed of Figure 12 1206, cellular baseband processor 1224, transceiver 1222, antenna 1280, and / or additional symbol cancellation component 198. As described above, in some aspects, the second communication may be associated with a second set of resources rather than additional symbols that may be included in the set of symbols canceled for the first communication, the second set of resources overlapping with one or more (overlapping) symbols. Accordingly, in some aspects, the second communication may be sent via one or more (overlapping) symbols rather than one or more additional symbols. For example, with reference to Figure 6 and Figure 8 , UE 804 may send a second communication 824 (or a second (5G NR UL) transmission 625) via overlapping symbols 665 (instead of additional symbols 677 or 679).

[0119] At 1018, the UE may receive an additional grant for an additional set of resources for the first communication from a network node associated with the first RAN. For example, 1018 may be performed by Figure 121206, cellular baseband processor 1224, transceiver 1222, antenna 1280, and / or additional symbol cancellation component 198. In some aspects, the additional grant for the additional set of resources for the first communication may indicate an RV associated with the initial transmission (an RV of 0). In some aspects, the indication of an RV of 0 may be based on the wireless device refraining from transmitting the remainder of the first communication via the set of symbols such that a network node associated with the first RAN detects DTx (e.g., fails to detect a transmission via the first set of resources). For example, with reference to Figure 8 , UE 804 may receive additional resource grant 828 indicating an RV of 0.

[0120] Thus, at 1020, the UE may retransmit the first communication via an additional set of resources after sending the second communication. For example, 1020 may be performed by Figure 12 The application processor 1206, cellular baseband processor 1224, transceiver 1222, antenna 1280 and / or additional symbol cancellation component 198 of the present invention may be executed. In some aspects, the retransmission may be based on an RV of 0, thereby allowing the retransmission to be decodable at a network node associated with the first RAN. For example, referring to Figure 8 , UE 804 may send the first communication 830 based on an RV of 0.

[0121] Figure 11 1100 is a flow chart of a method of wireless communication. The method may be performed by a network device or network node (e.g., a base station) of a first RAN (e.g., base station 102; network entity 1302; a base station associated with RAN1 802a). At 1102, the network node may grant a first set of resources for a first communication associated with a first radio access network to a wireless device. For example, 1102 may be performed by Figure 13 The CU processor 1312, the DU processor 1332, the RU processor 1342, the transceiver 1346, the antenna 1380 and / or the partial cancellation Tx detection component 199 of the wireless device are executed. In some aspects, granting the first set of resources for the first communication at 1102 includes: sending a first grant for the first set of resources for the first communication to the wireless device (e.g., via DCI). For example, referring to Figure 8 , the network node of RAN1 802a may send a first grant 808 for a first set of resources for a first communication with RAN1 802a.

[0122] At 1104, the network node may identify that the first set of resources does not include the first communication based on receiving a portion of the first communication via a subset of the first set of resources. For example, 1104 may be performed by Figure 13The CU processor 1312, DU processor 1332, RU processor 1342, transceiver 1346, antenna 1380 and / or partially cancel Tx detection component 199 of the wireless device are executed. In some aspects, identifying that the first resource set does not include the first communication can include: detecting DTx from the wireless device. For example, referring to Figure 8 , the network node of RAN1 802a may receive the beginning of a first communication 812 that is then partially canceled by the UE 804 (by refraining from sending the remainder of the first communication 812 at 822), and detect DTx (e.g., may fail to detect a transmission) during the time slot or subframe including the canceled symbols at 826.

[0123] At 1106, the network node may grant a second set of additional resources for the first communication based on identifying that the first set of resources does not include the first communication, the second set of additional resources including a redundancy value associated with an initial transmission of the first communication. For example, 1106 may be performed by Figure 13 The CU processor 1312, DU processor 1332, RU processor 1342, transceiver 1346, antenna 1380 and / or partial cancellation Tx detection component 199 of the wireless device are executed. In some aspects, granting a second set of additional resources for the first communication may include: sending a second grant for the second set of additional resources for the first communication to the wireless device. For example, referring to Figure 8 , UE 804 may receive additional resource grant 828 indicating an RV of 0.

[0124] Based on the grant of the second set of additional resources, the network node may receive the first communication via the second set of additional resources. In some aspects, the retransmission may be based on an RV of 0, thereby allowing the retransmission to be decodable at the network node associated with the first RAN. For example, referring to Figure 8 , the network node associated with RAN1 802a may receive the first communication 830 based on an RV of zero.

[0125] Figure 1212 is a diagram 1200 illustrating an example of a hardware implementation for an apparatus 1204. The apparatus 1204 may be a UE, a component of a UE, or may implement UE functionality. In some aspects, the apparatus 1204 may include a cellular baseband processor 1224 (also referred to as a modem) coupled to one or more transceivers 1222 (e.g., a cellular RF transceiver). The cellular baseband processor 1224 may include on-chip memory 1224′. In some aspects, the apparatus 1204 may also include one or more subscriber identity module (SIM) cards 1220 coupled to a secure digital (SD) card 1208 and a screen 1210, and an application processor 1206. The application processor 1206 may include on-chip memory 1206′. In some aspects, the device 1204 may also include a Bluetooth module 1212, a WLAN module 1214, an SPS module 1216 (e.g., a GNSS module), one or more sensor modules 1218 (e.g., a barometric pressure sensor / altimeter; a motion sensor such as an inertial measurement unit (IMU), a gyroscope, and / or an accelerometer; light detection and ranging (LIDAR), radio-aided detection and ranging (RADAR), sound navigation and ranging (SONAR), a magnetometer, audio, and / or other technologies for positioning), an additional memory module 1226, a power supply 1230, and / or a camera 1232. The Bluetooth module 1212, the WLAN module 1214, and the SPS module 1216 may include an on-chip transceiver (TRX) (or, in some cases, just a receiver (RX)). The Bluetooth module 1212, the WLAN module 1214, and the SPS module 1216 may include their own dedicated antennas and / or utilize antenna 1280 for communication. The cellular baseband processor 1224 communicates with the UE 104 and / or RUs associated with the network entity 1202 via one or more antennas 1280 via the transceiver 1222. The cellular baseband processor 1224 and the application processor 1206 may each include computer-readable media / memory 1224', 1206', respectively. The additional memory module 1226 may also be considered a computer-readable medium / memory. Each computer-readable medium / memory 1224', 1206', 1226 may be non-transitory. The cellular baseband processor 1224 and the application processor 1206 are each responsible for general processing, including executing software stored on the computer-readable medium / memory. When executed by the cellular baseband processor 1224 / application processor 1206, this software enables the cellular baseband processor 1224 / application processor 1206 to perform the various functions described above. The computer-readable medium / memory may also be used to store data manipulated by the cellular baseband processor 1224 / application processor 1206 when executing the software.The cellular baseband processor 1224 / application processor 1206 may be a component of the UE 350 and may include the memory 360 and / or at least one of the TX processor 368, the RX processor 356, and the controller / processor 359. In one configuration, the apparatus 1204 may be a processor chip (modem and / or applications) and include only the cellular baseband processor 1224 and / or the application processor 1206, and in another configuration, the apparatus 1204 may be the entire UE (e.g., see ). Figure 3 UE 350) and includes additional modules of device 1204.

[0126] As discussed above, the extra symbol cancellation component 198 can be configured to operate the first transceiver in a first connection mode with a RAN and the second transceiver in a second connection mode with a second RAN. The extra symbol cancellation component 198 can also be configured to transmit a first communication via the first transceiver and, based on a second communication via the second transceiver, obtain an indication of cancellation of one or more symbols used for the first communication via the first transceiver. The extra symbol cancellation component 198 can also be configured to refrain from transmitting the remainder of the first communication via a symbol set comprising the one or more symbols based on the indication. The extra symbol cancellation component 198 can be within the cellular baseband processor 1224, the application processor 1206, or both the cellular baseband processor 1224 and the application processor 1206. The extra symbol cancellation component 198 can be one or more hardware components specifically configured to perform the described process / algorithm, implemented by one or more processors configured to execute the described process / algorithm, stored on a computer-readable medium for implementation by one or more processors, or some combination thereof. As shown, the apparatus 1204 can include various components configured for various functions. In one configuration, the apparatus 1204 (specifically, the cellular baseband processor 1224 and / or the application processor 1206) may include means for operating the first transceiver in a first connected mode with a first RAN and operating the second transceiver in a second connected mode with a second RAN. The apparatus 1204 (specifically, the cellular baseband processor 1224 and / or the application processor 1206) may also include means for initiating transmission of a first communication via the first transceiver. The apparatus 1204 (specifically, the cellular baseband processor 1224 and / or the application processor 1206) may also include means for obtaining an indication of cancellation of one or more symbols used for the first communication via the first transceiver based on the second communication via the second transceiver. The apparatus 1204 (specifically, the cellular baseband processor 1224 and / or the application processor 1206) may also include means for refraining from transmitting a remaining portion of the first communication via a symbol set comprising the one or more symbols based on the indication. The apparatus 1204 (specifically, the cellular baseband processor 1224 and / or the application processor 1206) may further include means for transmitting the second communication via one or more symbols. The apparatus 1204 (specifically, the cellular baseband processor 1224 and / or the application processor 1206) may further include means for receiving, from the network node, a first grant for a first set of resources for the first communication, wherein the first set of resources includes one or more symbols. The apparatus 1204 (specifically, the cellular baseband processor 1224 and / or the application processor 1206) may further include means for receiving, from the network node, an additional grant for an additional set of resources for the first communication based on the wireless device refraining from transmitting the remaining portion of the first communication via the set of symbols.The apparatus 1204 (specifically, the cellular baseband processor 1224 and / or the application processor 1206) may also include means for retransmitting the first communication via the additional set of resources after sending the second communication. The apparatus 1204 (specifically, the cellular baseband processor 1224 and / or the application processor 1206) may also include means for obtaining an indication of cancellation of one or more symbols from the admission management unit of the wireless device. These means may be the additional symbol cancellation component 198 of the apparatus 1204, which is configured to perform the operation with respect to. Figure 9 and 10 As described above, the apparatus 1204 may include a TX processor 368, an RX processor 356, and a controller / processor 359. Thus, in one configuration, these means may be the TX processor 368, the RX processor 356, and / or the controller / processor 359 configured to perform the functions recited by these means.

[0127] Figure 13Schematic diagram 1300 illustrates an example of a hardware implementation for a network entity 1302. Network entity 1302 may be a base station (BS), a component of a BS, or may implement BS functionality. Network entity 1302 may include at least one of a CU 1310, a DU 1330, or a RU 1340. For example, depending on the layer functionality handled by the partial cancellation Tx detection component 199, network entity 1302 may include a CU 1310; both the CU 1310 and the DU 1330; each of the CU 1310, the DU 1330, and the RU 1340; the DU 1330; both the DU 1330 and the RU 1340; or the RU 1340. CU 1310 may include a CU processor 1312. CU processor 1312 may include on-chip memory 1312′. In some aspects, CU 1310 may also include an additional memory module 1314 and a communication interface 1318. CU 1310 communicates with DU 1330 over a mid-haul link, such as an F1 interface. DU 1330 may include a DU processor 1332. DU processor 1332 may include on-chip memory 1332′. In some aspects, DU 1330 may also include an additional memory module 1334 and a communication interface 1338. DU 1330 communicates with RU 1340 over a fronthaul link. RU 1340 may include a RU processor 1342. RU processor 1342 may include on-chip memory 1342′. In some aspects, RU 1340 may also include an additional memory module 1344, one or more transceivers 1346, an antenna 1380, and a communication interface 1348. RU 1340 communicates with UE 104. On-chip memory 1312′, 1332′, 1342′ and additional memory modules 1314, 1334, 1344 may each be considered a computer-readable medium / memory. Each computer-readable medium / memory may be non-transitory. Each of processors 1312, 1332, and 1342 is responsible for general processing, including executing software stored on the computer-readable medium / memory. When executed by the corresponding processor, the software causes the processor to perform the various functions described above. The computer-readable medium / memory may also be used to store data manipulated by the processor when executing the software.

[0128] As described above, the partial Tx cancellation detection component 199 can be configured to grant, to the wireless device, a first set of resources for a first communication associated with the first RAN. The partial Tx cancellation detection component 199 can also be configured to: identify, based on receiving a portion of the first communication via a subset of the first set of resources, that the first communication is not included in the first set of resources; and, based on identifying that the first set of resources does not include the first communication, grant, for the first communication, a second set of additional resources that includes a redundancy value associated with an initial transmission of the first communication. The partial Tx cancellation detection component 199 can be within one or more processors of one or more of the CU 1310, DU 1330, and RU 1340. The partial Tx cancellation detection component 199 can be one or more hardware components specifically configured to perform the described process / algorithm, implemented by one or more processors configured to perform the described process / algorithm, stored on a computer-readable medium for implementation by one or more processors, or some combination thereof. The network entity 1302 can include various components configured for various functions. In one configuration, the network entity 1302 can include means for granting, to the wireless device, the first set of resources for the first communication associated with the first RAN. In one configuration, the network entity 1302 may include means for identifying that the first set of resources does not include the first communication based on receiving a portion of the first communication via a subset of the first set of resources. In one configuration, the network entity 1302 may include means for granting a second set of additional resources for the first communication including a redundancy value associated with an initial transmission of the first communication based on identifying that the first set of resources does not include the first communication. These means may be the partial cancellation Tx detection component 199 of the network entity 1302 configured to perform Figure 11 As described above, the network entity 1302 may include a TX processor 316, an RX processor 370, and a controller / processor 375. Thus, in one configuration, these means may be the TX processor 316, the RX processor 370, and / or the controller / processor 375 configured to perform the functions recited by these means.

[0129] In some aspects of wireless communications (e.g., DSDA), a wireless device may be connected to two different RANs. For example, the wireless device may be configured to simultaneously connect to a first RAN and a second RAN (e.g., where the first RAN or the second RAN may be an LTE RAN or a 5G NR RAN). The different RANs may schedule overlapping transmissions from the wireless device (e.g., transmissions from the wireless device are scheduled for overlapping time periods and / or for overlapping time periods and frequencies). In some aspects, the wireless device may be unable to send overlapping transmissions (at least during the overlapping time periods). In some aspects, the inability to send overlapping transmissions may be due to the wireless device's hardware being unable to simultaneously transmit two different signals (e.g., having one transceiver, one antenna, etc.) or based on external limitations (e.g., maximum allowable transmission power). Based on the inability to send two transmissions during the overlapping time period, the wireless device may cancel at least one transmission during the overlapping time period (e.g., may blank, null data tones, or avoid transmitting during the overlapping time period). In some aspects, the wireless device may determine to cancel the first transmission in favor of the second transmission based on the relative priority of the overlapping transmissions (e.g., based on the associated RAN, data, or channel type or time period).

[0130] For example, in a case where a first transmission is associated with a low-priority communication utilizing a first RAN and a second transmission is associated with a higher-priority communication utilizing a second RAN, the wireless device may cancel or blank the overlapping portion of the low-priority communication. However, in some aspects, this partial blanking may not be the optimal solution for low-priority communications (e.g., for communications associated with a PUSCH). For example, if the canceled or blanked portion of the first transmission includes at least one DMRS or DM-RS, the cancellation or blanking may render the first transmission undecodable at the receiving network device. In some aspects, the cancellation or blanking of at least one DMRS in the first transmission associated with an RV of 0 may significantly corrupt and / or degrade the first transmission (e.g., a PUSCH transmission) to the extent that even subsequent retransmissions (e.g., RV2, RV3, or RV1 retransmissions using corresponding RVs of 2, 3, or 4, respectively) may be undecodable. Therefore, a method and apparatus for detecting overlapping transmissions are provided, which can result in cancellation or blanking of one DMRS of a first transmission of a first communication, and cancellation of an additional portion (e.g., symbols) of the first transmission so that a receiving network device fails to recognize or detect the first transmission, and subsequent grants for (re)transmissions of the first communication use an RV of 0.

[0131] Certain aspects of the subject matter described in this disclosure can be implemented to achieve one or more of the following potential advantages: In some examples, the described techniques can be used to avoid one or more retransmissions of an undecodable first transmission (or communication) (where the retransmissions may also be undecodable) by canceling additional symbols beyond a minimum set of (overlapping) symbols used to send a second transmission.

[0132] It should be understood that the specific order or hierarchy of blocks in the disclosed processes / flowcharts is illustrative of example methods. It should be understood that the specific order or hierarchy of blocks in the processes / flowcharts may be rearranged based on design preferences. In addition, some blocks may be combined or omitted. The accompanying method claims present elements of the various blocks in an example order and are not limited to the specific order or hierarchy presented.

[0133] The foregoing description is provided to enable any person skilled in the art to implement the various aspects described herein. Various modifications to these aspects will be apparent to those skilled in the art, and the general principles defined herein can be applied to other aspects. Therefore, the claims are not limited to the various aspects shown herein, but are to be given the full scope consistent with the language claims. Unless explicitly stated otherwise, reference to a singular element does not mean "one and only one", but "one or more". Terms such as "if", "when..." and "while..." do not mean an immediate time relationship or reaction. In other words, these phrases (e.g., "when...") do not mean an immediate action in response to the occurrence of an action or during the occurrence of the action, but only mean that if the conditions are met, the action will occur, but does not require a specific or immediate time constraint for the action to occur. The word "exemplary" is used herein to mean "used as an example, instance or illustration". Any aspect described as "exemplary" herein is not necessarily to be interpreted as preferred or advantageous over other aspects. Unless otherwise explicitly stated, the term "some" refers to one or more. Combinations such as "at least one of A, B, or C," "one or more of A, B, or C," "at least one of A, B, and C," "one or more of A, B, and C," and "A, B, C, or any combination thereof" include any combination of A, B, and / or C and may include multiples of A, multiples of B, or multiples of C. Specifically, combinations such as "at least one of A, B, or C," "one or more of A, B, or C," "at least one of A, B, and C," "one or more of A, B, and C," and "A, B, C, or any combination thereof" may include only A, only B, only C, A and B, A and C, B and C, or A, B, and C, any of which may include one or more members of A, B, or C. A set should be interpreted as a set of elements, where the number of elements is one or more. Thus, for a set X, X will include one or more elements. If a first device receives data from or sends data to a second device, the data may be received / sent directly between the first and second devices, or indirectly between the first and second devices via a device set. A device configured to "output" data (such as a transmission, signal, or message) can, for example, utilize a transceiver to send data, or can send data to a device that sends data. A device configured to "obtain" data (such as a transmission, signal, or message) can, for example, utilize a transceiver to receive data, or can obtain data from a device that receives data. All structural and functional equivalents to the elements of the various aspects described throughout this disclosure that are known or later become known to those skilled in the art are expressly incorporated herein by reference and are encompassed by the claims.Furthermore, nothing disclosed herein is dedicated to the public regardless of whether such disclosure is explicitly recited in the claims. The words "module," "mechanism," "element," "device," and the like may not be substitutes for the word "unit." Thus, no claim element should be interpreted as a functional unit unless the element is explicitly recited using the phrase "means for..."

[0134] As used herein, the phrase "based on" should not be interpreted as a reference to a closed set of information, one or more conditions, one or more factors, etc. In other words, unless specifically stated differently, the phrase "based on A" (where "A" can be information, conditions, factors, etc.) should be interpreted as "based at least on A."

[0135] The following aspects are merely illustrative and may be combined with other aspects or teachings described herein without limitation.

[0136] Aspect 1 is a method of wireless communication at a UE, comprising: operating a first transceiver in a first connected mode with a first RAN and operating a second transceiver in a second connected mode with a second RAN; initiating transmission of a first communication via the first transceiver; obtaining an indication of cancellation of a set of symbols used for the first communication via the first transceiver based on the second communication via the second transceiver; and refraining from transmitting a remaining portion of the first communication via the set of symbols based on the indication, wherein the set of symbols includes one or more symbols that at least partially overlap with the second communication.

[0137] Aspect 2 is a method according to Aspect 1, wherein the symbol set includes one or more additional symbols of the remaining portion of the first communication, wherein the one or more additional symbols include at least one symbol preceding the one or more symbols, and wherein obtaining the indication is based on the one or more symbols satisfying a set of criteria.

[0138] Aspect 3 is a method according to any one of Aspects 1 and 2, further comprising: receiving a second grant for a second set of resources for the second communication from a second network node, wherein the second set of resources at least partially overlaps with the one or more symbols but not the one or more additional symbols; and sending the second communication via the one or more symbols.

[0139] Aspect 4 is a method according to any one of aspects 1 to 3, wherein obtaining the indication is based on the one or more symbols including symbols for a reference signal associated with the first communication.

[0140] Aspect 5 is a method according to any one of aspects 1 to 4, wherein obtaining the indication is based on the one or more symbols including at least a threshold number of symbols.

[0141] Aspect 6 is the method of aspect 5, wherein the threshold number of symbols is based on one of a digital scheme or an MCS associated with the first communication.

[0142] Aspect 7 is a method according to any one of aspects 1 to 6, wherein obtaining the indication is based on at least one of an SNR, a SINR, or a CQI associated with the first communication.

[0143] Aspect 8 is a method according to any one of aspects 1 to 7, wherein obtaining the indication is based on a BLER associated with the first communication.

[0144] Aspect 9 is a method according to any one of aspects 1 to 8, wherein obtaining the indication is based on the first communication being associated with a PUSCH.

[0145] Aspect 10 is a method according to any one of aspects 1 to 9, wherein the indication is based on one or more of the following: the wireless device cannot send the first communication and the second communication at the same time, or the power associated with sending the first communication and the second communication at the same time exceeds a threshold power.

[0146] Aspect 11 is the method of any one of aspects 1 to 10, wherein the indication is further based on relative priorities for communications associated with the first transceiver and the second transceiver.

[0147] Aspect 12 is a method according to aspect 11, wherein the relative priority is a locally assigned priority independent of the priority associated with a specific communication, wherein the first communication is a first communication type associated with a first priority of the relative priority, and the second communication is a second communication type associated with a second priority of the relative priority, and wherein avoiding communication via the one or more symbols is also based on the first communication type and the second communication type.

[0148] Aspect 13 is a method according to any one of aspects 1 to 12, wherein obtaining the indication of the cancellation comprises obtaining the indication of the cancellation of the one or more symbols from a grant management unit of the wireless device.

[0149] Aspect 14 is a method according to any one of Aspects 1 to 13, wherein the wireless device is a user equipment (UE) and the first communication is conducted with a network node, and the method further includes: receiving a first grant for a first set of resources for the first communication from the network node, wherein the first set of resources includes the one or more symbols; based on the wireless device avoiding sending the remaining part of the first communication via the symbol set, receiving an additional grant for an additional set of resources for the first communication from the network node, wherein the additional grant for the additional set of resources for the first communication indicates a redundancy value associated with the initial transmission; and after sending the second communication, retransmitting the first communication via the additional set of resources.

[0150] Aspect 15 is a method for wireless communication at a network node, comprising: granting, for a wireless device, a first set of resources for a first communication associated with a first RAN; identifying, based on receiving a portion of the first communication via a subset of the first set of resources, that the first set of resources does not include the first communication; and granting, based on identifying that the first set of resources does not include the first communication, a second additional set of resources for the first communication that includes a redundancy value associated with an initial transmission of the first communication.

[0151] Aspect 16 is a method according to aspect 1, wherein granting the first set of resources for the first communication includes: sending a first grant for the first set of resources for the first communication to the wireless device, and wherein granting the second additional set of resources for the first communication includes: sending a second grant for the second additional set of resources for the first communication to the wireless device.

[0152] Aspect 17 is a method according to any one of aspects 15 and 16, wherein the wireless device is a UE and the network node is a base station.

[0153] Aspect 18 is an apparatus for wireless communication at a device, comprising a memory and at least one processor coupled to the memory, and based at least in part on information stored in the memory, the at least one processor is configured to implement any one of aspects 1 to 17.

[0154] Aspect 19 is the method of aspect 18, further comprising a transceiver or antenna coupled to the at least one processor.

[0155] Aspect 20 is an apparatus for wireless communication at a device, comprising means for implementing any one of aspects 1 to 17.

[0156] Aspect 21 is a computer-readable medium (eg, non-transitory computer-readable medium) storing computer-executable code, wherein the code, when executed by a processor, causes the processor to implement any one of aspects 1 to 17.

Claims

1. An apparatus for wireless communication at a wireless device, comprising: Memory; as well as at least one processor coupled to the memory and, based at least in part on information stored in the memory, configured to: operating a first transceiver in a first connected mode with a first radio access network (RAN) and operating a second transceiver in a second connected mode with a second RAN; initiating transmission of a first communication via the first transceiver; obtaining an indication of cancellation of a set of symbols used for the first communication via the first transceiver based on a second communication via the second transceiver; as well as Based on the indication, a remaining portion of the first communication is refrained from being transmitted via the set of symbols, wherein the set of symbols includes one or more symbols that at least partially overlap with the second communication.

2. The device according to claim 1, wherein The set of symbols comprises one or more additional symbols of the remaining portion of the first communication, wherein the one or more additional symbols comprise at least one symbol preceding the one or more symbols, and wherein, to obtain the indication, the at least one processor is configured to obtain the indication based on the one or more symbols satisfying a set of criteria.

3. The device according to claim 2, wherein The at least one processor is further configured to: receiving a second grant from a second network node for a second set of resources for the second communication, wherein the second set of resources at least partially overlaps with the one or more symbols but not the one or more additional symbols; and The second communication is sent via the one or more symbols.

4. The device according to claim 2, wherein To obtain the indication, the at least one processor is configured to obtain the indication based on the one or more symbols comprising a symbol for a reference signal associated with the first communication.

5. The device according to claim 2, wherein To obtain the indication, the at least one processor is configured to obtain the indication based on the one or more symbols comprising at least a threshold number of symbols.

6. The device according to claim 5, wherein The threshold number of symbols is based on one of a digital scheme or a modulation and coding scheme (MCS) associated with the first communication.

7. The device according to claim 2, wherein To obtain the indication, the at least one processor is configured to obtain the indication based on at least one of a signal-to-noise ratio (SNR), a signal-to-interference-plus-noise ratio (SINR), or a channel quality indicator (CQI) associated with the first communication.

8. The device according to claim 2, wherein To obtain the indication, the at least one processor is configured to obtain the indication based on a block error rate (BLER) associated with the first communication.

9. The device according to claim 2, wherein To obtain the indication, the at least one processor is configured to obtain the indication based on the first communication being associated with a physical uplink shared channel (PUSCH).

10. The device according to claim 1, wherein The instructions are based on one or more of the following: The wireless device is incapable of transmitting the first communication and the second communication simultaneously, or A power associated with simultaneously transmitting the first communication and the second communication exceeds a threshold power.

11. The device according to claim 1, wherein The indication is also based on relative priorities for communications associated with the first transceiver and the second transceiver.

12. The device according to claim 11, wherein The relative priority is a locally assigned priority that is independent of a priority associated with a particular communication, wherein the first communication is a first communication type associated with a first priority of the relative priority, and the second communication is a second communication type associated with a second priority of the relative priority, and wherein the at least one processor is further configured to avoid communicating via the one or more symbols based on the first communication type and the second communication type.

13. The device according to claim 1, wherein To obtain the indication of the cancellation, the at least one processor is configured to: The indication of the cancellation of the one or more symbols is obtained from a grant management unit of the wireless device.

14. The device according to claim 1, wherein The wireless device is a user equipment (UE), and the first communication is with a network node, wherein the at least one processor is further configured to: receiving, from the network node, a first grant for a first set of resources for the first communication, wherein the first set of resources includes the one or more symbols; receiving, based on the wireless device refraining from transmitting the remaining portion of the first communication via the set of symbols, an additional grant from the network node for an additional set of resources for the first communication, wherein the additional grant for the additional set of resources for the first communication indicates a redundancy value associated with an initial transmission; and After sending the second communication, the first communication is retransmitted via the additional set of resources.

15. An apparatus for wireless communication at a network node, comprising: Memory; as well as at least one processor coupled to the memory and, based at least in part on information stored in the memory, configured to: Granting, for a wireless device, a first set of resources for a first communication associated with a first radio access network (RAN); identifying, based on receiving a portion of the first communication via a subset of the first set of resources, that the first set of resources does not include the first communication; as well as Based on identifying that the first set of resources does not include the first communication, a second additional set of resources including a redundancy value associated with an initial transmission of the first communication is granted for the first communication.

16. The apparatus according to claim 15, wherein: To grant the first set of resources for the first communication, the at least one processor is configured to: send, to the wireless device, a first grant for the first set of resources for the first communication; and To grant the second set of additional resources for the first communication, the at least one processor is configured to send, to the wireless device, a second grant for the second set of additional resources for the first communication.

17. The device according to claim 15, wherein The wireless device is a user equipment (UE) and the network node is a base station.

18. A method of wireless communication at a wireless device, comprising: operating a first transceiver in a first connected mode with a first radio access network (RAN) and operating a second transceiver in a second connected mode with a second RAN; initiating transmission of a first communication via the first transceiver; obtaining an indication of cancellation of a set of symbols used for the first communication via the first transceiver based on a second communication via the second transceiver; as well as Based on the indication, a remaining portion of the first communication is refrained from being transmitted via the set of symbols, wherein the set of symbols includes one or more symbols that at least partially overlap with the second communication.

19. The method according to claim 18, wherein The set of symbols includes one or more additional symbols of the remaining portion of the first communication, wherein the one or more additional symbols include at least one symbol preceding the one or more symbols, and wherein obtaining the indication is based on the one or more symbols satisfying a set of criteria.

20. The method according to claim 19, wherein The wireless device is a user equipment (UE), and the first communication is with a network node, the method further comprising: receiving, from the network node, a first grant for a first set of resources for the first communication, wherein the first set of resources includes the one or more symbols; receiving a second grant from a second network node for a second set of resources for the second communication, wherein the second set of resources at least partially overlaps with the one or more symbols but not the one or more additional symbols; transmitting the second communication via the one or more symbols; receiving, based on the wireless device refraining from transmitting the remaining portion of the first communication via the set of symbols, an additional grant from the network node for an additional set of resources for the first communication, wherein the additional grant for the additional set of resources for the first communication indicates a redundancy value associated with an initial transmission; and After sending the second communication, the first communication is retransmitted via the additional set of resources.

21. The method according to claim 19, wherein The indication is obtained based on the one or more symbols including symbols for a reference signal associated with the first communication.

22. The method according to claim 19, wherein Obtaining the indication is based on the one or more symbols including at least a threshold number of symbols.

23. The method according to claim 22, wherein The threshold number of symbols is based on one of a digital scheme or a modulation and coding scheme (MCS) associated with the first communication.

24. The method according to claim 19, wherein Obtaining the indication is based on at least one of a signal-to-noise ratio (SNR), a signal-to-interference-plus-noise ratio (SINR), a channel quality indicator (CQI), or a block error rate (BLER) associated with the first communication.

25. The method according to claim 19, wherein Obtaining the indication is based on the first communication being associated with a physical uplink shared channel (PUSCH).

26. The method according to claim 18, wherein The indication is based on one or more of: the wireless device being unable to transmit the first communication and the second communication simultaneously, or a power associated with transmitting the first communication and the second communication simultaneously exceeding a threshold power.

27. The method according to claim 18, wherein The indication is also based on a relative priority for communications associated with the first transceiver and the second transceiver, and wherein the relative priority is a locally assigned priority that is independent of a priority associated with a particular communication, wherein the first communication is a first communication type associated with a first priority of the relative priority and the second communication is a second communication type associated with a second priority of the relative priority, and wherein avoiding communication via the one or more symbols is also based on the first communication type and the second communication type.

28. The method according to claim 18, wherein Obtaining said indication of said cancellation comprises: The indication of the cancellation of the one or more symbols is obtained from a grant management unit of the wireless device.

29. A method for wireless communication at a network node, comprising: Granting, for a wireless device, a first set of resources for a first communication associated with a first radio access network (RAN); identifying, based on receiving a portion of the first communication via a subset of the first set of resources, that the first set of resources does not include the first communication; as well as Based on identifying that the first set of resources does not include the first communication, a second additional set of resources including a redundancy value associated with an initial transmission of the first communication is granted for the first communication.

30. The method according to claim 29, wherein The wireless device is a user equipment (UE) and the network node is a base station, wherein granting the first set of resources for the first communication comprises: sending, to the wireless device, a first grant for the first set of resources for the first communication; and The granting of the second set of additional resources for the first communication comprises: sending, to the wireless device, a second grant for the second set of additional resources for the first communication.

Images