Uplink PDU set and reflective QoS in radio access network

Abstract

Apparatus and methods for configuring an uplink PDU set and reflective QoS in a radio access network are described. An apparatus is configured to: receive, from a network node, a mapping configuration indicating a configuration mapping between a QoS flow and a UL radio bearer associated with transmission of a set of PDUs; and switching the QoS flow to map to another UL radio bearer based on the presence of a condition associated with the transmission of a set of PDUs in the set of PDUs. Another apparatus is configured to: receive, from a UE, an indication of UE capabilities associated with mapping a QoS flow with a UL radio bearer for transmission of a set of PDUs; and configuring the UE with a mapping configuration indicating a configuration mapping between the QoS flow and a UL radio bearer associated with transmission of the set of PDUs based on the indication of the UE capability.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims the benefit of U.S. non-provisional patent application serial number 18 / 164,551, entitled “UPLINK PDU SETS AND REFLECTIVE QOS IN RADIO ACCESSNETWORKS,” filed on February 3, 2023, which is expressly incorporated herein by reference in its entirety. Technical Field

[0003] The present disclosure relates generally to communication systems, and more particularly to wireless communications and Quality of Service (QoS) flows. Background Art

[0004] Wireless communication systems are widely deployed to provide a variety of telecommunication services, such as telephony, video, data, messaging, and broadcasts. Typical wireless communication systems may employ multiple access technologies capable of supporting communication with multiple users by sharing available system resources. 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 promulgated by the 3rd 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). Certain aspects of 5G NR may be based on the 4G Long Term Evolution (LTE) standard. Further improvements to 5G NR technology are needed. In addition, 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 presents a simplified overview of one or more aspects in order to provide a basic understanding of these aspects. This summary is not an extensive overview of all contemplated aspects. This summary does not identify key or critical elements of all aspects, nor does it delineate the scope of any or all aspects. Its sole purpose is to present some concepts of one or more aspects in a simplified form as a prelude to the more detailed description that will be presented later.

[0007] In one aspect of the present disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus is configured to: receive, from a network node, a mapping configuration indicating a configuration mapping between a quality of service (QoS) flow and a first uplink (UL) radio bearer, wherein the first UL radio bearer is associated with the transmission of at least one packet data unit (PDU) set. The apparatus is configured to: cause the QoS flow to be switched to be mapped to a second UL radio bearer based on the presence of a condition associated with the transmission of a first PDU set in the at least one PDU set.

[0008] In this aspect, the method includes receiving, from a network node, a mapping configuration indicating a configuration mapping between a QoS flow and a first UL radio bearer, wherein the first UL radio bearer is associated with transmission of at least one PDU set. The method also includes switching the QoS flow to be mapped to a second UL radio bearer based on the presence of a condition associated with the transmission of the first PDU set in the at least one PDU set.

[0009] In another aspect of the present disclosure, a method, computer-readable medium, and apparatus are provided. The apparatus is configured to receive, from a user equipment (UE), a first indication of UE capabilities associated with mapping a QoS flow to an UL radio bearer for transmission of at least one PDU set. The apparatus is configured to configure the UE with a mapping configuration indicating a configuration mapping between the QoS flow and a first UL radio bearer associated with transmission of the at least one PDU set based on the first indication of the UE capabilities.

[0010] In this aspect, the method includes receiving, from a UE, a first indication of UE capabilities associated with mapping a QoS flow to an UL radio bearer for transmission of at least one PDU set. The method also includes configuring the UE with a mapping configuration indicating a configuration mapping between the QoS flow and a first UL radio bearer associated with transmission of the at least one PDU set based on the first indication of the UE capabilities.

[0011] To achieve the foregoing and related ends, one or more aspects may include the features fully described below and particularly pointed out in the claims. The following description and the accompanying drawings set forth in detail some 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

[0012] Figure 1 is a diagram illustrating an example of a wireless communication system and an access network.

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

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

[0015] Figure 2C is a diagram illustrating an example of a second frame according to various aspects of the present disclosure.

[0016] Figure 2D is a diagram illustrating an example of uplink (UL) channels within a subframe according to various aspects of the present disclosure.

[0017] Figure 3 is a diagram illustrating an example of a base station and a user equipment (UE) in an access network.

[0018] Figure 4 is a diagram illustrating an example mapping of QoS flows across radio bearers according to various aspects of the present disclosure.

[0019] Figure 5 is a diagram illustrating example mappings between different QoS flows, radio bearers, Service Data Adaptation Protocol (SDAP), and PDU sessions according to various aspects of the present disclosure.

[0020] Figure 6 is a diagram illustrating an example extended reality (XR) service according to various aspects of the present disclosure.

[0021] Figure 7 is a call flow diagram for wireless communication according to various aspects of the present disclosure.

[0022] Figure 8 A call flow diagram for wireless communications is shown in accordance with various aspects of the present disclosure.

[0023] Figure 9 is a flow chart of a method of wireless communication according to various aspects of the present disclosure.

[0024] Figure 10is a flow chart of a method of wireless communication according to various aspects of the present disclosure.

[0025] Figure 11 are diagrams illustrating examples of hardware implementations for example apparatuses and / or network entities.

[0026] Figure 12 is a diagram illustrating an example of a hardware implementation for an example network entity. DETAILED DESCRIPTION

[0027] Wireless communication networks such as 5G NR networks can implement services with specific characteristics. Service flows in wireless communication networks can have various characteristics, for example, including layer attributes, time frames for delay, etc. As an example, extended reality (XR) services for UL and DL can have characteristics such as application layer attributes, short time frames for exchange, where longer delays for service flows may reduce the user experience of XR applications or devices, etc. XR service bursts can be periodic, but can include some time jitter in their arrival, and for some bursts, the XR packet size and number of packets can be variable. That is, XR service characteristics such as periodicity, multi-flow, jitter, delay, reliability, etc. can affect the signaling throughput, latency and other operations at base stations and other devices (such as UEs) on the wireless communication network. Additionally, XR service bursts can be associated with QoS flows mapped to a given radio bearer at the UE.

[0028] A PDU set can be delivered to an application by the RAN as an integrated unit. For example, a PDU set can be associated with a video frame or a slice within a video frame. PDUs in the same PDU set can share common QoS attributes, and PDU sets can have different decoding criteria, which may depend on the specific implementation of each application. Additionally, PDUs may be discarded by the UE and / or the RAN due to various conditions. For example, a PDU may be discarded when there is no remaining delay budget or when one or more of its associated Layer 2 timers have expired. A PDU may also be discarded when the content criteria of its associated PDU set may no longer be met or have been met.

[0029] Various aspects presented herein generally relate to wireless communication systems and user equipment utilizing uplink transmissions. Some aspects more specifically relate to configuring uplink PDU sets and reflective QoS in a radio access network. In some examples, a UE may receive a mapping configuration indicating a configuration mapping between a QoS flow and a first uplink radio bearer associated with the transmission of at least one PDU set. The UE may switch the QoS flow to be mapped to a second uplink radio bearer based on the presence of a condition associated with the transmission of the first PDU set in the at least one PDU set.

[0030] Certain aspects of the subject matter described in this disclosure may be implemented to achieve one or more of the following potential advantages. Some aspects of the present invention may provide UL flexibility for radio bearer mapping associated with a QoS flow, which enables the UE to quickly and dynamically adapt operation for improved signaling throughput and latency reduction in a wireless communication network. Although the network may provide various configurations for QoS flows to the UE, aspects of the present invention enable the UE to adjust the configuration it implements based on dynamic radio conditions and network traffic, which improves signaling and latency. For example, aspects of the present invention provide for the UE to receive, from a network node (e.g., a base station or a component of a base station), a mapping configuration indicating a configuration mapping between a QoS flow and a first UL radio bearer associated with the transmission of at least one PDU set. The network node may configure the UE via semi-static RRC signaling, dynamic reflected QoS (RQoS), etc. Thus, the UE may be enabled and configured to switch the QoS flow to be mapped to a second UL radio bearer based on the presence of a condition associated with the transmission of the first PDU set in the at least one PDU set. Similarly, aspects herein enable a network node (e.g., a base station) to receive, from a UE, a first indication of UE capabilities associated with mapping a QoS flow to an UL radio bearer for transmission of at least one PDU set. Accordingly, the UE may be enabled and configured with a mapping configuration indicating a configuration mapping between the QoS flow and a first UL radio bearer associated with transmission of the at least one PDU set based on the first indication of the UE capabilities.

[0031] The detailed description set forth below in conjunction with the accompanying drawings is a description of various configurations and does not represent the only configurations in which the concepts described herein may be practiced. The detailed description includes specific details to provide a thorough understanding of the various concepts. However, these concepts may be practiced without these specific details. In some cases, well-known structures and components are shown in block diagram form to avoid obscuring such concepts.

[0032] Several aspects of telecommunication systems are presented with reference to various apparatuses and methods. These apparatuses and methods are described in the following detailed description and illustrated in the accompanying drawings by various blocks, components, circuits, processes, algorithms, etc. (collectively, "elements"). These elements can be implemented using electronic hardware, computer software, or any combination thereof. Whether these elements are implemented as hardware or software depends on the specific application and the design constraints imposed on the overall system.

[0033] For example, an element, or any part of an element, or any combination of elements can be implemented as a "processing system", which includes 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 various functionalities 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 terms, 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, executables, threads of execution, processes, functions, or any combination thereof.

[0034] Thus, in one or more example aspects, specific implementations and / or use cases, the functions described may be implemented in hardware, software, or any combination thereof. If implemented in software, the functions 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 computer-readable media may include random access memory (RAM), read-only memory (ROM), electrically erasable programmable ROM (EEPROM), optical disk storage, magnetic disk storage, other magnetic storage devices, combinations of these types of computer-readable media, or any other medium that can be used to store computer-executable code in the form of instructions or data structures that can be accessed by a computer.

[0035] Although various aspects, specific implementations and / or use cases are described in this application by way of illustration of some examples, additional or different aspects, specific implementations and use cases may be generated in many different arrangements and scenarios. The various aspects, specific implementations and / or use cases described herein may be implemented across many different platform types, devices, systems, shapes, sizes and packaging arrangements. For example, various aspects, specific implementations and / or use cases may be generated via integrated chip implementations and other devices based on non-module components (e.g., end-user devices, vehicles, communication equipment, computing equipment, industrial equipment, retail / purchase equipment, medical equipment, devices that enable artificial intelligence (AI), etc.). Although some examples may or may not be specifically for use cases or applications, the examples described may have a wide range of applicability. Various aspects, specific implementations and / or use cases may be within the scope of chip-level or modular components to non-modular, non-chip-level specific implementations, and further to the scope of aggregation, distribution or original equipment manufacturer (OEM) equipment or systems in conjunction with one or more technologies herein. In some actual settings, the equipment in conjunction with the various aspects and features described may also include additional components and features for implementing and practicing 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 practiced in a wide variety of devices of various sizes, shapes, and configurations, including chip-level components, systems, distributed arrangements, aggregated or disaggregated components, end-user devices, and the like.

[0036] The deployment of a communication system (such as a 5G NR system) can be arranged in a variety of ways with various components or 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 network equipment (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 a converged or decomposed architecture. For example, a BS (such as a Node B (NB), an evolved NB (eNB), an NRBS, a 5G NB, an access point (AP), a transmit receive point (TRP), or a cell) can be implemented as a converged base station (also known as a standalone BS or a monolithic BS) or a decomposed base station.

[0037] 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 across 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 CU, DU, and RU may be implemented as a virtual unit, namely a virtual central unit (VCU), a virtual distributed unit (VDU), or a virtual radio unit (VRU).

[0038] Base station operation or network design may take into account the aggregated nature of base station functionality. For example, a disaggregated base station may be utilized in an integrated access backhaul (IAB) network, an open radio access network (O-RAN (a network configuration such as that initiated by the O-RAN Alliance)), or a virtualized radio access network (vRAN, also known as a cloud radio access network (C-RAN)). Disaggregation may include distributing functionality across two or more units at various physical locations, as well as virtually distributing functionality of at least one unit, which may enable flexibility in network design. Various units of a disaggregated base station or disaggregated RAN architecture may be configured for wired or wireless communication with at least one other unit.

[0039] Figure 1 FIG100 is a diagram illustrating an example of a wireless communication system and access network. The illustrated wireless communication system includes a disaggregated base station architecture. The disaggregated base station architecture may include one or more CUs 110, which may communicate directly with a 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 CUs 110 may communicate with one or more DUs 130 via corresponding midhaul links, such as an F1 interface. The DUs 130 may communicate with one or more RUs 140 via corresponding fronthaul links. The RUs 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.

[0040] Each of these units (i.e., CU 110, DU 130, RU 140, and near-RT RIC 125, non-RT RIC 115, and SMO framework 105) may include or be coupled to one or more interfaces configured to receive or transmit signals, data, or information (collectively, signals) via a wired or wireless transmission medium. Each of the units, or an associated processor or controller that provides instructions to the communication interfaces of these units, may be configured to communicate with one or more of the other units via the transmission medium. For example, these units may include a wired interface configured to receive signals or transmit signals to one or more of the other units via a wired transmission medium. Additionally, these units may include a wireless interface that may include a receiver, transmitter, or transceiver (such as an RF transceiver) configured to receive and / or transmit signals to one or more of the other units via a wireless transmission medium.

[0041] In some aspects, the CU 110 may host 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 that is configured to communicate signals with other control functions hosted 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 specific implementations, the CU 110 may be logically split into one or more CU-UP units and one or more CU-CP units. When implemented in an O-RAN configuration, the CU-UP unit may communicate bidirectionally with the CU-CP unit via an interface (such as an E1 interface). As needed, the CU 110 may be implemented to communicate with the DU 130 for network control and signaling.

[0042] The DU 130 may correspond to a logical unit that includes one or more base station functions for controlling the operation of one or more RUs 140. In some aspects, the DU 130 may host one or more of 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 and demodulation, etc.) based at least in part on a functional split, such as those defined by 3GPP. 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.

[0043] Lower layer functionality may be implemented by one or more RUs 140. In some deployments, a RU 140 controlled by a DU 130 may correspond to a logical node that hosts RF processing functionality or low PHY layer functionality (such as performing Fast Fourier Transform (FFT), Inverse FFT (iFFT), digital beamforming, Physical Random Access Channel (PRACH) extraction and filtering, etc.), or both, based at least in part on a functional split (such as a lower layer functional split). 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, both real-time and non-real-time aspects of control plane communications 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).

[0044] 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) to perform network element lifecycle management (such as instantiating virtualized network elements) via a cloud computing platform interface (such as the O2 interface). 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 .

[0045] The non-RT RIC 115 may be configured to include logic that enables non-real-time control and optimization of RAN elements and resources, artificial intelligence (AI) / machine learning (ML) (AI / ML) workflows including model training and updating, 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 (e.g., via an A1 interface). The near-RT RIC 125 may be configured to include logic that enables near-real-time control and optimization of RAN elements and resources through data collection and actions over an interface (e.g., via an E2 interface) that connects one or more CUs 110, one or more DUs 130, or both, and an O-eNB with the near-RT RIC 125.

[0046] In some implementations, the non-RT RIC 115 may receive parameters or external enrichment information from an external server in order to generate an AI / ML model to be deployed in the near-RT RIC 125. This information may be utilized by the near-RT RIC 125 and may be received from a non-network data source or from a network function 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).

[0047] 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 by 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 utilize 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 utilize spectrum with a bandwidth of up to Y MHz (e.g., 5 MHz, 10 MHz, 15 MHz, 20 MHz, 100 MHz, 400 MHz, etc.) for each carrier allocated in a carrier aggregation for a total of up to Yx MHz (x component carriers) for transmission in each direction. These carriers may 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 ​​compared to 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).

[0048] Some UEs 104 may communicate with each other using device-to-device (D2D) communication links 158. The D2D communication links 158 may use DL / UL wireless wide area network (WWAN) spectrum. The D2D communication links 158 may 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 may be accomplished 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.

[0049] 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, for example, in the 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.

[0050] 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 as frequency range designations FR1 (410 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 referred to (interchangeably) as the "sub-6 GHz" band in various documents and articles. A similar naming issue sometimes occurs 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) identified as the "millimeter wave" band by the International Telecommunication Union (ITU).

[0051] Frequencies between FR1 and FR2 are generally referred to as mid-band frequencies. Recent 5G NR research has identified the operating bands for these mid-band frequencies as frequency range designation FR3 (7.125GHz-24.25GHz). The frequency bands falling within FR3 can inherit FR1 characteristics and / or FR2 characteristics, thus effectively extending the features of FR1 and / or FR2 to mid-band frequencies. In addition, higher frequency bands are currently being explored to extend 5G NR operation to more than 52.6GHz. For example, three higher operating bands have been identified as frequency range designations FR2-2 (52.6GHz-71GHz), FR4 (71GHz-114.25GHz), and FR5 (114.25GHz-300GHz). Each of these higher frequency bands falls within the EHF band.

[0052] With the above in mind, unless otherwise specified, if the term "sub-6 GHz" or the like is used herein, it may broadly refer to frequencies that may be less than 6 GHz, may be within FR1, or may include mid-band frequencies. Furthermore, unless otherwise specified, if the term "millimeter wave" or the like is used herein, it may broadly refer to frequencies that may include mid-band frequencies, may be within FR2, FR4, FR2-2, and / or FR5, or may be within the EHF band.

[0053] 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 of base station 102 may or may not be the same. The transmit and receive directions of UE 104 may or may not be the same.

[0054] 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 equipment, 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).

[0055] 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 handling, access authorization, and subscription management. The one or more location servers 168 are exemplified 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. Locating the UE 104 may involve signal measurements, position estimates, and optional velocity calculations based on these measurements. Signal measurements may be performed by the UE 104 and / or the base station 102 serving the UE 104. The measured signals may be based on one or more of 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 positioning / location systems), LTE signals, wireless local area network (WLAN) signals, Bluetooth signals, a terrestrial beacon system (TBS), sensor-based information (e.g., an atmospheric pressure sensor, a motion sensor), an NR enhanced cell ID (NR E-CID) method, NR signals (e.g., multi-round trip time (multi-RTT), DL angle of departure (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.

[0056] Examples of UE 104 include cellular phones, smartphones, Session Initiation Protocol (SIP) phones, laptops, personal digital assistants (PDAs), satellite radios, global positioning systems, multimedia devices, video devices, digital audio players (e.g., MP3 players), cameras, game consoles, tablet devices, smart devices, wearable devices, vehicles, electric meters, gas pumps, large or small kitchen appliances, healthcare devices, implants, sensors / actuators, displays, or any other similarly functional device. Some of UE 104 may be referred to as IoT devices (e.g., parking meters, gas pumps, toasters, vehicles, heart rate monitors, etc.). UE 104 may also be referred to as a station, mobile station, subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, or some other suitable terminology. In some scenarios, the term "UE" may also apply to one or more companion devices, such as in a device constellation arrangement. One or more of these devices may access the network collectively and / or individually.

[0057] Reference again Figure 1In certain aspects, the UE 104 may have a PDU set and QoS component 198 ("component 198") that may be configured to receive, from a network node, a mapping configuration indicating a configuration mapping between a QoS flow and a first UL radio bearer associated with transmission of at least one PDU set. Component 198 may be configured to, based on the presence of a condition associated with the transmission of a first PDU set in the at least one PDU set, switch the QoS flow to be mapped to a second UL radio bearer. Component 198 may be configured to, based on the absence of the condition, transmit one or more PDUs in the at least one PDU set to the network node via the first UL radio bearer and before switching the QoS flow to be mapped to the second UL radio bearer. Component 198 may be configured to obtain an indication of the presence of the condition associated with the transmission of the first PDU set in the at least one PDU set from at least one of the network node or operations performed at the UE. The component 198 may be configured to receive an indication of criteria of a condition from a network node via at least one of RRC signaling, PDCP signaling, RLC signaling, or MAC-CE. The component 198 may be configured to store the criteria of the condition in a memory of the UE. The component 198 may be configured to send an end marker associated with a first identifier of the first UL radio bearer to the network node via the first UL radio bearer; and send at least one of the following to the network node and via the second UL radio bearer: a start marker associated with a second identifier of the second UL radio bearer, or new data transmission. The component 198 may be configured to receive an additional mapping configuration indicating an additional configuration mapping between the QoS flow and at least one of the first UL radio bearer or the third UL radio bearer from the network node via a DL Reflective QoS procedure; and switch the QoS flow based on the additional mapping configuration to map the QoS flow to the at least one of the first UL radio bearer or the third UL radio bearer. In certain aspects, base station 102 may have a PDU set and QoS component 199 ("component 199") that may be configured to receive, from a UE, a first indication of UE capabilities associated with mapping a QoS flow to an UL radio bearer for transmission of at least one PDU set. Component 199 may be configured to configure the UE with a mapping configuration indicating a configuration mapping between the QoS flow and a first UL radio bearer associated with transmission of the at least one PDU set based on the first indication of the UE capabilities.Where the mapping configuration further indicates at least one conditional mapping between the QoS flow and at least one additional UL radio bearer, wherein the at least one conditional mapping is included in a QoS IE, component 199 may be configured to receive a second indication from the UE that the UE has switched the QoS flow to be mapped to a second UL radio bearer based on the presence of a condition associated with the transmission of a first PDU set in the at least one PDU set, wherein the second UL radio bearer is one of the UL radio bearers. Component 199 may be configured to receive one or more PDUs in the at least one PDU set from the UE via the first UL radio bearer based on the absence of the condition and prior to receiving the second indication. Component 199 may be configured to provide the UE with a third indication of the presence of the condition associated with the transmission of the first PDU set in the at least one PDU set. Component 199 may be configured to provide the UE with a fourth indication of criteria for the condition via at least one of RRC signaling, PDCP signaling, RLC signaling, or MAC-CE. The component 199 may be configured to: receive from the UE via the first UL radio bearer an end marker associated with the first identifier of the first UL radio bearer; and receive from the UE and via the second UL radio bearer at least one of: a start marker associated with the second identifier of the second UL radio bearer, or a new data transmission. That is, aspects provide UL flexibility for configuration of uplink PDU sets and reflected QoS in a radio access network and for radio bearer mapping associated with QoS flows, which enables the UE to quickly and dynamically adapt operation for improved signaling throughput and latency reduction in a wireless communication network. Although the network can provide various configurations for QoS flows to the UE, aspects of the present invention enable the UE to adjust the configuration it implements based on dynamic radio conditions and network traffic, which improves signaling and latency. Similarly, aspects of the present invention enable a network node (e.g., a base station) to receive from the UE a first indication of UE capabilities associated with mapping a QoS flow to an UL radio bearer for transmission of at least one PDU set. Thus, the UE may be enabled and configured with a mapping configuration indicating a configuration mapping between a QoS flow and a first UL radio bearer associated with transmission of the at least one PDU set based on the first indication of the UE capability.

[0058] 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 illustrating an example of a second subframe within a 5G NR frame structure. Figure 2DFIG280 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), subframes within that subcarrier set are dedicated to either DL or UL), or may be time division duplex (TDD) (wherein, for a particular set of subcarriers (carrier system bandwidth), subframes within that subcarrier set are dedicated to both DL and UL). Figure 2A 、 Figure 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. The other slot formats 2-61 include a mix of DL, UL, and flexible symbols. The UE is configured with the slot format via the received slot format indicator (SFI) (dynamically configured via DL control information (DCI) or semi-statically / statically configured via radio resource control (RRC) signaling). Note that the following description also applies to the 5G NR frame structure as TDD.

[0059] Figures 2A to 2D The frame structure is illustrated, and various aspects of the present disclosure are applicable to other wireless communication technologies that may have different frame structures and / or different channels. A frame (10ms) can 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 parameter set. The parameter set defines the subcarrier spacing (SCS) (see Table 1). The symbol length / duration can be scaled using 1 / SCS.

[0060]

[0061] Table 1: Parameter set, SCS and CP

[0062] For normal CP (14 symbols / slot), different parameter sets μ0 to 4 allow 1, 2, 4, 8, and 16 slots per subframe, respectively. For extended CP, parameter set 2 allows 4 slots per subframe. Thus, for normal CP and parameter set μ, there are 14 symbols / slot and 2 μ time slots / subframe. The subcarrier spacing can be equal to 2 μ *15kHz, where μ is parameter set 0 to 4. Therefore, the subcarrier spacing for parameter set μ=0 is 15kHz, and the subcarrier spacing for parameter set μ=4 is 240kHz. Symbol length / duration is inversely related to subcarrier spacing. Figures 2A to 2D An example is provided for a normal CP with 14 symbols per slot and a parameter set 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) that are frequency-division multiplexed (see Figure 2B ). Each BWP may have a specific parameter set and CP (normal or extended).

[0063] A resource grid can be used to represent the frame structure. Each slot includes a resource block (RB) (also known as a physical RB (PRB)) that extends over 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.

[0064] like Figure 2A As illustrated, some of the REs carry reference (pilot) signals (RS) for the UE. The RS may include a demodulation RS (DM-RS) (indicated as R for a specific configuration, but other DM-RS configurations are possible) and a channel state information reference signal (CSI-RS) for channel estimation at the UE. The RS may also include a beam measurement RS (BRS), a beam refinement RS (BRRS), and a phase tracking RS (PT-RS).

[0065] Figure 2BExamples of various DL channels within a subframe of a frame are illustrated. 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 an OFDM symbol of a RB. The PDCCH within a BWP may be referred to as a control resource set (CORESET). During a PDCCH monitoring opportunity on the CORESET, the UE is configured to monitor PDCCH candidates in a PDCCH search space (e.g., a common search space, a UE-specific search space), where the PDCCH candidates have different DCI formats and different aggregation levels. Additional BWPs may be located at higher 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 identity. 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 location 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 known as an SS block (SSB)). The MIB provides the system frame number (SFN) and the number of RBs in the system bandwidth. The physical downlink shared channel (PDSCH) carries user data, broadcast system information not sent over the PBCH (such as the system information block (SIB)), and paging messages.

[0066] like Figure 2C As illustrated, some of the REs carry DM-RS (indicated as R for a specific configuration, but other DM-RS configurations are possible) for channel estimation at the base station. The UE may transmit the DM-RS of the physical uplink control channel (PUCCH) and the DM-RS of the physical uplink shared channel (PUSCH). The PUSCH DM-RS may be transmitted in the first or first two symbols of the PUSCH. Depending on whether a short PUCCH or a long PUCCH is transmitted and on the specific PUCCH format used, the PUCCH DM-RS may be transmitted in different configurations. The UE may transmit a sounding reference signal (SRS). The SRS may be transmitted in the last symbol of a subframe. The SRS may have a comb structure, and the UE may transmit the SRS on one of the comb structures in the comb structure. The SRS may be used by the base station for channel quality estimation to achieve frequency-dependent scheduling of the UL.

[0067] Figure 2DExamples of various UL channels within a subframe of a frame are illustrated. The PUCCH may be located at a position as indicated in one configuration. The PUCCH carries uplink control information (UCI), such as a scheduling request, a channel quality indicator (CQI), a precoding matrix indicator (PMI), a 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.

[0068] Figure 3 3 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 functionality. 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 functionality associated with broadcasting 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 functionality associated with header compression / decompression, security (ciphering, deciphering, integrity protection, integrity verification), and handover support functions; RLC layer functionality associated with transfer 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 functionality associated with 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.

[0069] The transmit (TX) processor 316 and receive (RX) processor 370 implement Layer 1 functionality associated with various signal processing functions. Layer 1, which includes the physical (PHY) layer, may include error detection on the transport channel, forward error correction (FEC) coding / decoding of the transport 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-order phase-shift keying (M-PSK), and M-order quadrature amplitude modulation (M-QAM)). The coded and modulated symbols may then be split into parallel streams. Each stream may 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 pre-coded to generate multiple spatial streams. Channel estimates from a channel estimator 374 may be used to determine the coding and modulation schemes, as well as for spatial processing. The channel estimates may be derived from a reference signal and / or channel state feedback transmitted 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 using a corresponding spatial stream for transmission.

[0070] 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 functionality 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 converts the OFDM symbol stream from the time domain to the frequency domain using a fast Fourier transform (FFT). The frequency domain signal includes a separate OFDM symbol stream for each subcarrier of the OFDM signal. The symbols on each subcarrier, as well as the reference signal, are recovered and demodulated by determining the most likely signal constellation point transmitted by the base station 310. These soft decisions can be based on channel estimates 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 a controller / processor 359, which implements layer 3 functionality and layer 2 functionality.

[0071] 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 an ACK and / or NACK protocol to support HARQ operations.

[0072] Similar to the functionality described in conjunction with DL transmissions performed by the base station 310, the controller / processor 359 provides RRC layer functionality associated with system information (e.g., MIB, SIB) acquisition, RRC connection, and measurement reporting; PDCP layer functionality associated with header compression / decompression and security (encryption, decryption, integrity protection, integrity verification); RLC layer functionality associated with delivery 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 functionality 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.

[0073] 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 the appropriate coding and modulation schemes and to facilitate spatial processing. The spatial streams generated by the TX processor 368 may be provided to different antennas 352 via separate transmitters 354Tx. Each transmitter 354Tx may modulate an RF carrier with a corresponding spatial stream for transmission.

[0074] 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.

[0075] 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.

[0076] At least one of the TX processor 368, the RX processor 356, and the controller / processor 359 may be configured to perform a combined Figure 1 At least one of the TX processor 316, the RX processor 370, and the controller / processor 375 may be configured to perform a combined Figure 1 Aspects of component 199.

[0077] Traffic flows in wireless communication networks may have various characteristics, including, for example, layer attributes, time frames for latency, and the like. As an example, XR traffic for UL and DL may have characteristics such as application layer attributes and short time frames for exchange, where longer latency for traffic flows may degrade the user experience with the application or device. Additionally, such traffic bursts may be periodic, but may include some temporal jitter in their arrival, and for some bursts, the packet size and number of packets may be variable. That is, service characteristics such as periodicity, multi-flow, jitter, latency, reliability, and the like may affect power usage and operation at base stations and other devices on the wireless communication network.

[0078] A PDU set can be a collection of one or more PDUs to be delivered to an application as an integrated unit by the RAN. For example, a PDU set can be associated with a video frame or a slice within a video frame. PDUs in the same PDU set can share common QoS attributes, such as PDU set delay budget (PSDB) and PDU set error rate (PSER), and can have different decoding criteria (e.g., PDU set content criteria (PSCC)), which may depend on the specific implementation of each application. Example PSCCs may include, but are not limited to, "all or nothing" (e.g., if any PDU in a PDU set is lost, the entire PDU set may become obsolete), "good until first loss" (e.g., all received PDUs are good until the first loss occurs), and application layer (AL) FEC (AL-FEC) (e.g., the PDUs in a PDU set may be encoded using AL-FEC, etc., and based on the FEC redundancy ratio, a subset of the PDUs in the PDU set may be used by one or more applications to decode the PDU set). Additionally, PDUs may be discarded by the UE and / or RAN due to various conditions. For example, a PDU may be discarded when there is no remaining delay budget for the PDU, or one or more of its associated Layer 2 timers have expired (e.g., a PDCP discard timer, an RLC reassembly timer, an RLC discard timer, a PDCP reordering timer, etc.). As another example, a PDU may be discarded when the content criteria of its associated PDU set may no longer be met or have been met, e.g., if the content criteria is "all or nothing" or "good until first loss," a loss has occurred, a threshold number of PDUs in the PDU set have been successfully received / transmitted, and therefore subsequent PDUs are redundant, etc.

[0079] UL PDU sets may share aspects with DL PDU sets. One example may be UL PDU set marking, where the UPF uses the same kind of packet filters for DL ​​PDU set marking (e.g., by matching the Real-time Transport Protocol (RTP) or Secure RTP (SRTP) header and payload; or based on the UE specific implementation, it may be the same specific implementation of the UPF in marking DL PDU sets). Another example may be UL PDU set QoS attributes. For example, PSDB may be defined as an upper bound on the delay between the time the last PDU in the UL PDU set is received at the UE's SDAP service access point and the time the last PDU is successfully received at the receiver; and PSER may be defined as an upper bound on the ratio between the number of UL PDU sets that were not successfully received and the total number of UL PDU sets transmitted within the configured measurement window. The UL PDU set information for the RAN may also include shared aspects. For example, the common RAN information may include a PDU set identifier (e.g., a sequence number) (U-plane), an indication of the boundaries of the UL PDU set (e.g., the start and end of the PDU set) (U-plane), the PDU set size in bytes or the number of PDUs in the PDU set (U-plane), the importance of the PDU set (U-plane), service parameters such as periodicity (C-plane), whether ordered delivery is utilized (C-plane), etc.

[0080] PDU set importance can be associated with each PDU set rather than a QoS flow. In other words, each PDU set can be assigned its own importance level. However, PDU sets with the same QoS Flow Identifier (QFI) can still belong to the same QoS flow regardless of their respective importance levels. The PSDB and PSER can be configured for a QoS flow, however, they may differ in how they are used. For example, the PSDB can be common to all PDU sets in a QoS flow, and the PSER can be measured based on a set of PDU sets transmitted within a configured time window (e.g., if the UE selectively discards one or more PDU sets, PDU sets with high importance may have a lower PSER than other PDU sets, while the overall error rate may still meet the configured PSER). Therefore, importance may be orthogonal to the PSDB, and importance may be more related to differentiated reliability (e.g., error / loss rate), which can result in more protection for PDU sets with high importance (e.g., selective repetition) and can lead to preferential scheduling in the event of UL congestion, for example, to reduce the likelihood of PDUs being discarded due to delays longer than the PSDB.

[0081] As described herein, a sub-QoS flow may include one or more PDUs with the same importance level (or PDU set type) within a QoS flow, and a QoS flow may include multiple sub-QoS flows. Additionally, a radio bearer (xRB) may generally refer to various types of radio bearers, where "x" is used to denote a general meaning. For example, an xRB may be a data radio bearer (DRB), a signaling radio bearer (SRB), a multicast radio bearer (MRB), and so on.

[0082] When a data packet arrives at the SDAP Service Access Point (SAP), two operations may occur. In one operation, the UE may identify which sub-QoS flow and / or QoS flow the data packet is associated with. Based on, for example, the QoS flow to xRB mapping that exists with SDAP (which may be based on a semi-static RRC configuration or based on dynamic information derived from a reflective QoS (RQoS) mechanism), the service may be directed to a specific radio bearer (e.g., a DRB). In another operation, based on QoS flow characteristics, scheduling delay / BLER and other characteristics, the RAN may choose to switch the QoS flow to a different xRB, for example, through the non-access stratum (NAS) or access stratum (AS) level of the mapping update information via the RQoS mechanism. The above two operations can be conceptualized as an outer loop of control and may consume time to change the mapping. For example, the characterization of the service characteristics may consume more time than expected or available at the RAN level, and switching from one xRB to another may not have any timing constraints due to, for example, potential delays in scheduling DL packets and HARQ / RLC ARQ mechanisms to deliver packets and delivery in sequence from PDCP to SDAP. Furthermore, switching from an old xRB to a new xRB may depend on how much data is already embedded as part of the old PDCP sequence number (SN). That is, any time may elapse between the actual switch to the new xRB and the "end" marker on the old xRB and the "start" marker on the new xRB. For DL ​​RQoS, switching from one xRB to another may not have any timing constraints due to potential delays in, for example, scheduling DL packets and the HARQ / RLC ARQ mechanisms for packet delivery and in-sequence delivery from PDCP to SDAP. Even with a received DL RQoS command, switching from an old xRB to a new xRB from a UL perspective may depend on how much data is already embedded as part of the old xRB PDCP SN space from a UL perspective, as well as how much data is already in the RLC-level Tx queue. Similarly, even if it is a dynamic switch, time may elapse between the actual switch from the old xRB (e.g., with an "end" marker) to the new xRB with RQoS based on the existing DL RAN (e.g., with a "start" marker). These unpredictable delays can impact PDU set timing and signaling on both the PSDB and PSER sides, ultimately translating into an impact on the user experience.

[0083] Various aspects of this document may provide UL flexibility for radio bearer mapping associated with a QoS flow, which enables the UE to quickly and dynamically adapt operation for improved signaling throughput and latency reduction in a wireless communication network. Although the network may provide various configurations for a QoS flow to the UE, the aspects of this document enable the UE to adjust the configuration it implements based on dynamic radio conditions and network traffic, which improves signaling and latency. For example, the aspects of this document provide for the UE to receive a mapping configuration from a network node (e.g., a base station) indicating a configuration mapping between a QoS flow and a first UL radio bearer associated with the transmission of at least one PDU set. The network node may configure the UE via semi-static RRC signaling, dynamic RQoS, etc. Thus, the UE may be enabled and configured to switch the QoS flow to be mapped to a second UL radio bearer based on the presence of a condition associated with the transmission of the first PDU set in the at least one PDU set. Similarly, the aspects of this document enable the network node (e.g., a base station) to receive from the UE a first indication of a UE capability associated with mapping a QoS flow to an UL radio bearer for the transmission of at least one PDU set. Thus, the UE may be enabled and configured with a mapping configuration indicating a configuration mapping between a QoS flow and a first UL radio bearer associated with transmission of the at least one PDU set based on the first indication of the UE capability.

[0084] While the various aspects described may be applicable to XR and associated applications (mentioned for descriptive and illustrative purposes), the aspects are not limited thereto and are applicable to other types of applications, services and / or data, as will be understood by those skilled in the relevant art having the benefit of this disclosure. Additionally, while the various illustrative aspects may be described in the context of DRBs, it is contemplated herein that the aspects are not limited thereto and are applicable to other xRBs.

[0085] Figure 4 FIG4 is a diagram 400 illustrating an example mapping of QoS flows across radio bearers in various aspects. Figure 4 As shown, various QoS flows can be mapped with different QoS requirements across bearers. Differentiating bearers as part of a single slice or different slices can facilitate support for end-to-end (E2E) resource management to meet service level agreements (SLAs).

[0086] Figure 5 FIG5 is a diagram 500 illustrating an example mapping between different flows, RBs, SDAPs, and PDU sessions in various aspects. Figure 5As shown, multiple flows can be mapped to one RB. For example, QoS flows 2 and 3 can be mapped to the same data resource bearer (DRB), such as DRB 2. Multiple RBs can be mapped to the same PDU session (default and optional dedicated bearers). For example, multiple RBs (e.g., DRB 1 and DRB 2) can be mapped to the same Internet PDU session. One SDAP entity can correspond to one PDU session. For example, an Internet PDU session, a streaming video PDU session, and an IMS PDU session can each correspond to one SDAP entity.

[0087] Figure 6 Figure 600 illustrates an example XR service in various aspects. XR services may refer to wireless communications used for technologies such as virtual reality (VR), mixed reality (MR), and / or augmented reality (AR). VR may refer to technologies that immerse users in simulated experiences similar to or different from the real world. Users can interact with a VR system through a VR headset or a multi-projection environment that generates realistic images, sounds, and other sensations that simulate the user's physical presence in the virtual environment. MR may refer to technologies that blend aspects of the virtual and real environments. AR may refer to technologies that augment objects residing in the real world via computer-generated sensory information, sometimes across multiple sensory modalities such as vision, hearing, touch, somatosensory, and / or smell. AR systems may combine the combination of the real and virtual worlds, real-time interaction, and accurate three-dimensional registration of virtual and real objects. In examples, AR systems may overlay sensory information (e.g., images) onto the natural environment and / or mask real objects from the natural environment. XR services may include video data and / or audio data. The XR traffic may be transmitted by the base station and received by the UE, or the XR traffic may be transmitted by the UE and received by the base station.

[0088] XR traffic may arrive in periodic traffic bursts ("XR traffic bursts"). The XR traffic bursts may vary in the number of packets per burst and / or the size of each packet in the burst. Diagram 600 illustrates a first XR stream 602 including a first XR traffic burst 604 and a second XR traffic burst 606. As illustrated in diagram 600, the traffic bursts may include different numbers of packets, for example, the first XR traffic burst 604 is illustrated as having three packets (represented as rectangles in diagram 600) and the second XR traffic burst 606 is illustrated as having two packets. Furthermore, as illustrated in diagram 600, the three packets in the first XR traffic burst 604 and the two packets in the second XR traffic burst 606 may differ in size, that is, the packets within the first XR traffic burst 604 and the second XR traffic burst 606 may include different amounts of data.

[0089] XR traffic bursts may arrive at non-integer periods (i.e., in non-integer cycles). A period may differ from an integer number of symbols, time slots, etc. In an example, for 60 frames per second (FPS) video data, an XR traffic burst may arrive within a period of 1 / 60 = 16.67 ms. In another example, for 120 FPS video data, an XR traffic burst may arrive within a period of 1 / 120 = 8.33 ms.

[0090] The arrival time of XR traffic may vary. For example, an XR traffic burst may arrive and be available for transmission earlier or later than the time when the UE (or base station) expects the XR traffic burst. The variability of packet arrival relative to a period (e.g., a 16.76ms period, an 8.33ms period, etc.) may be referred to as "jitter." In an example, the jitter of the XR traffic may range from -4ms (arriving earlier than expected) to +4ms (arriving later than expected). For example, as shown in the figure, referring to the first XR stream 602, the UE may expect the first packet of the first XR traffic burst 604 to arrive at time t0, but the first packet of the first XR traffic burst 604 arrives at time t1.

[0091] XR traffic may include multiple streams arriving at a UE (or base station) concurrently with each other (or within a threshold time period). For example, diagram 600 includes a second XR stream 608. The second XR stream 608 may have different characteristics than the first XR stream 602. For example, the second XR stream 608 may have XR traffic bursts with different numbers of packets, different sizes of packets, etc. In one example, the first XR stream 602 may include video data, and the second XR stream 608 may include audio data for the video data. In another example, the first XR stream 602 may include intra-coded picture frames (I-frames) containing complete images, and the second XR stream 608 may include predicted picture frames (P-frames) containing changes from previous images.

[0092] As described herein, XR services may have an associated e2e PDB. If a packet does not arrive within the e2e PDB, the UE (or base station) may discard the packet. In an example, if a packet corresponding to a video frame of a video does not arrive at the UE within the e2e PDB, the UE may discard the packet because the video has advanced beyond that frame. However, the RDB at the UE may not be considered in view of discarded packets. An example time diagram 650 illustrates the length of time corresponding to a PDB 654. At a particular point in time 656, the residual delay budget 652 is the remaining portion of the PDB 654.

[0093] The XR service overall PDB may include a portion for allowing communication delay (e2e PDB) of data between a UE and a computing device (e.g., a server) hosting an application (e.g., for XR), and a portion for additional time after the communication delay before data is discarded (e.g., residual delay (e.g., RDB)). For example, diagram 600 includes a packet delay budget flow 610. The packet delay budget flow 610 illustrates a UE 612, a network entity 614 (e.g., a base station or a portion thereof), and a server 616 hosting an application 618. In the illustrated aspect, communication delay 620 is shown as including a RAN portion between the UE 612 and the network entity 614, and a CN portion between the network entity 614 and the server 616. The communication delay 620 may apply to both UL and DL communications. Additionally, a residual delay 622 for DL ​​communications is shown at the UE 612, and a residual delay 624 for UL communications is shown at the server 616. Communication delay 620 and residual delay 622 may constitute an overall PDB for DL ​​XR communications, eg, DL PDB 626. Likewise, communication delay 620 and residual delay 624 may constitute an overall PDB for UL XR communications (not shown for clarity of illustration).

[0094] Generally speaking, XR services are characterized by relatively high data rates and relatively low latency. Latency in XR services can affect user experience. For example, XR services can be applied to eMBB and URLLC services.

[0095] Figure 7 FIG700 is a call flow diagram 700 for wireless communication in various aspects. Call flow diagram 700 illustrates the configuration of uplink PDU sets and reflective QoS in a radio access network by a UE (e.g., UE 702) that can communicate with a network node (e.g., base station 704, such as a gNB or other type of base station, as shown). Various aspects described with respect to base station 704 can be performed in an aggregated form by the base station and / or in a decomposed form by one or more components of base station 704. Additionally or alternatively, these aspects can be performed autonomously by UE 702 in addition to and / or in lieu of the operations of base station 704.

[0096] In the illustrated aspect, the UE 702 may provide a mapping capability 706 of one or more QoS flows to one or more UL DRBs to the base station 704. That is, the UE 702 may provide or send a first indication of UE capabilities associated with mapping QoS flows to UL radio bearers for transmission of at least one PDU set, and the base station 704 may receive the first indication. In various aspects, the mapping capability 706 may indicate that the UE 702 is capable of mapping a given QoS flow to a single UL DRB, or mapping a given QoS flow to more than one UL DRB, e.g., a one-to-N model, where N is a positive integer greater than one. If N is one or greater, the indication of support for the one-to-N model enables the UE to indicate support for one-to-one mapping or mapping of a single QoS flow to multiple UL DRBs.

[0097] Based on the mapping capabilities 706 supported by the UE, the base station 704 may generate a mapping configuration 710 at 708 indicating a configured mapping between a QoS flow and a first UL DRB for transmission of at least one PDU set. In various aspects, the mapping configuration 710 may include a one-to-one mapping or a one-to-many mapping. In one example of a one-to-many mapping for the mapping configuration 710, a default mapping of a QFI for the configured QoS flow to an xRB (e.g., a first DRB) may be included, where the default radio bearer may be associated with a network handover operation for the UE 702, and one or more optional or conditional mappings for different xRBs (e.g., a second DRB, a third DRB, etc.) may also be included for use in the mapping configuration 710. In various aspects, the one or more optional or conditional mappings for different xRBs may be included in a QoS information element (IE) of the mapping configuration 710. It should be noted that although the mapping configuration 710 may include one or more xRBs for the optional one-to-many mapping, at any given time, the QoS flow is mapped to one xRB.

[0098] The base station 704 may provide or transmit a mapping configuration 710, and the UE 702 may receive the mapping configuration. In various aspects, the mapping configuration 710 may be provided / transmitted and / or received via at least one of RRC signaling, PDCP signaling, SDAP signaling, or MAC-CE. Thus, the UE 702 may be configured with the mapping configuration 710, and in the illustrated example, the UE 702 maps its QoS flow for PDU set transmission to the first UL DRB. The UE 702 may be configured to provide or transmit one or more PDUs in the PDU set 712 to the base station 704 via the first UL DRB. In various aspects, the one or more PDUs may be a PDU set or a portion of a PDU thereof. Transmitting the one or more PDUs in the PDU set 712 to the base station 704 via the first UL DRB may be based on the absence of a condition associated with the transmission of the one or more PDUs in the PDU set 712. In various aspects, the criteria for the conditions associated with the transmission of one or more PDUs in the PDU set 712 may include, but are not limited to, expiration of the PSDB, measurement of the PSER satisfying a PSER threshold, a scheduling delay associated with the first UL radio bearer satisfying a scheduling threshold, a cell reselection hysteresis characteristic, a BLER associated with the first UL radio bearer satisfying a block error rate BLER threshold, and the like.

[0099] The UE 702 may switch the QoS flow to be mapped to the second UL radio bearer based on the existence of a condition associated with the transmission of the PDU set or a portion thereof in the PDU set 712 at 714. That is, the UE 702 may obtain and / or determine the existence of a condition associated with the transmission of one or more PDUs in the PDU set 712 (e.g., expiration of a PSDB, measurement of a PSER satisfying a PSER threshold, a scheduling delay associated with the first UL radio bearer satisfying a scheduling threshold, a cell reselection hysteresis characteristic, a BLER associated with the first UL radio bearer satisfying a block error rate (BLER) threshold, etc.), and in response, autonomously switch (at 714) the QoS flow for the UE 702 to a different xRB (e.g., the second UL DRB, as shown in the illustrated example).

[0100] The UE 702 may provide or transmit an indication 716 to the base station 704 for switching (at 714) the mapping of the QoS flow to a different xRB (e.g., to a second UL DRB, as shown in the illustrated example). In one aspect, the indication 716 may be a transmission of an end marker associated with a first identifier of the first UL radio bearer via a first UL radio bearer (e.g., a default xRB), and a transmission of at least one of a start marker associated with a second identifier of the second UL radio bearer or a new data transmission via a second UL radio bearer (e.g., a mapped xRB associated with the switch at 714). The UE 702 may then be configured to provide or transmit one or more PDUs in a PDU set 718 to the base station 704 via the second UL DRB, as in the illustrated example. In various aspects, the one or more PDUs may be a portion of a PDU set or a PDU thereof. Transmitting the one or more PDUs in PDU set 718 to base station 704 via the second UL DRB may be based on the absence of a condition associated with transmitting the one or more PDUs in PDU set 718, e.g., a condition similar to that described above for the one or more PDUs in PDU set 712. In various aspects, the one or more PDUs in PDU set 718 may be a continuation of the new data transmission of indication 716.

[0101] Figure 8 800 is a diagram for wireless communication in various aspects. Diagram 800 illustrates two example configurations of call flow diagrams: call flow diagram 850 and call flow diagram 860, which illustrate the configuration of uplink PDU sets and reflective QoS in a radio access network. Call flow diagrams 850, 860 may be performed by a UE (e.g., UE 802) that may communicate with a network node (base station 804, such as a gNB or other type of base station, as shown, as an example). Various aspects described with respect to base station 804 may be performed in an aggregated form by the base station and / or in a decomposed form by one or more components of base station 804. Additionally or alternatively, these aspects may be performed autonomously by UE 802 in addition to and / or in lieu of the operations of base station 804. UE 802 and base station 804 may be Figure 7 Further aspects of the UE 702 and the base station 704.

[0102] In the illustrated aspect of call flow diagram 850, UE 802 may obtain an indication of criteria 806 for conditions associated with transmission of one or more PDUs in a PDU set for a QoS flow mapped to a given radio bearer, e.g., similar to the criteria described above for Figure 7In one configuration, the UE 802 may receive an indication of the criteria 806 of the condition from the base station 804 via at least one of RRC signaling, PDCP signaling, RLC signaling, or MAC-CE. In one configuration, the UE 802 may determine the indication of the criteria 806 of the condition based on a specific implementation option / selection of the UE 802. These configurations may not be mutually exclusive in various aspects and may be used together, in whole or in part, or separately. In various aspects, the indication of the criteria 806 of the condition may be provided as Figure 7 Part of the mapping configuration 710 in.

[0103] At 808, UE 802 may store criteria for the condition from the indication of criteria 806 in a memory of UE 802, as described herein. According to aspects herein, the criteria stored at 808 may be used to implement uplink PDU sets and Reflective QoS in a radio access network. At 810, UE 802 may obtain an indication of the existence of a condition associated with the transmission of a PDU set (e.g., the first PDU set as described above) in the PDU set from base station 804 and / or operations performed at UE 802. That is, UE 802 may obtain (via reception and / or determination) at 810 an indication of the existence of a condition associated with the transmission of one or more PDUs in the PDU set, such as, but not limited to, expiration of a PSDB, a measurement of a PSER satisfying a PSER threshold, a scheduling delay associated with a first UL radio bearer satisfying a scheduling threshold, a cell reselection hysteresis characteristic, a BLER associated with the first UL radio bearer satisfying a BLER threshold, and the like. In response to obtaining (at 810) an indication of the existence of a condition, UE 802 may be configured to autonomously switch the QoS flow for UE 802 (e.g., at Figure 7 714 in) to different xRBs.

[0104] In the illustrated aspect of call flow diagram 850, UE 802 may obtain additional mapping configurations 812 indicating additional configuration mappings between QoS flows and xRBs. In various aspects, base station 804 may provide additional mapping configurations 812 via DL RQoS procedures. Figure 7 In the example illustrated in FIG, the UE may switch the mapping of the QoS flow from the first radio bearer (e.g., the default xRB) to the second radio bearer based on the conditions associated with the transmission of the PDU. In the operation in which the UE's QoS flow is mapped to the second radio bearer, the present invention is directed to Figure 8The additional mapping configuration 812 described with the call flow diagram 860 may configure the UE 802 to switch the QoS flow mapping from the second UL radio bearer back to the first UL radio bearer or the third UL radio bearer.

[0105] The UE 802 may provide or send an indication 816 to the base station 804 to switch the mapping of the QoS flow to a different xRB (e.g., back to the first UL xRB or the third UL xRB) (at 814). In one aspect, the indication 816 may be a transmission of an end marker associated with the second identifier of the second UL radio bearer via the second UL radio bearer, and a transmission (e.g., the mapped xRB associated with the switch at 814) via the first UL radio bearer or the third UL radio bearer, the transmission including at least one of a start marker associated with the first identifier or the third identifier of the first UL radio bearer or the third UL radio bearer or a new data transmission. The UE 802 may then be configured to provide or send one or more PDUs in the PDU set to the base station 804 via the first UL radio bearer or the third UL radio bearer.

[0106] Figure 9 900 is a flow chart of a method of wireless communication in various aspects. The method may be performed by a UE (e.g., UE 104, 612, 702, 802; device 1104). In some aspects, the method may include combining Figure 7 The aspects described in the communication flow and / or Figures 4 to 6 、 Figure 8 The method provides for configuring uplink PDU sets and reflective QoS in a radio access network, which enables a UE to configure mapping between QoS flows and radio bearers, thereby providing UL flexibility for radio bearer mapping associated with QoS flows, which enables the UE to quickly and dynamically adapt operation for improved signaling throughput and latency reduction in a wireless communication network.

[0107] At 902 , the UE receives a mapping configuration from a network node indicating a configuration mapping between a QoS flow and a first UL radio bearer associated with transmission of at least one PDU set. The receiving may be performed by component 198 , for example. Figure 7 、 Figure 8 An example is illustrated in which the UE 702 performs such reception for a mapping configuration from a network node (eg, base station 704).

[0108] For example, the UE 702 may be configured to provide a mapping capability 706 for one or more QoS flows to one or more UL DRBs to the base station 704. That is, the UE 702 may be configured to provide or send a first indication of UE capabilities associated with mapping a QoS flow to an UL radio bearer for transmission of at least one PDU set, and the base station 704 may be configured to receive the first indication. In various aspects, the mapping capability 706 may indicate that the UE 702 is capable of mapping a given QoS flow to a single UL DRB, or mapping a given QoS flow to more than one UL DRB, e.g., a one-to-N model. Based on the mapping capability 706, the base station 704 may be configured to generate a mapping configuration 710 at 708 indicating a configured mapping between the QoS flow and the first UL DRB for transmission of the at least one PDU set. In various aspects, the mapping configuration 710 may include a one-to-one mapping or a one-to-many mapping. In one example of a one-to-many mapping for mapping configuration 710, a default mapping of a QFI for a configured QoS flow to an xRB (e.g., a first DRB) may be included, where the default radio bearer may be associated with a network handover operation for UE 702, and one or more optional or conditional mappings for different xRBs (e.g., a second DRB, a third DRB, etc.) may also be included for mapping configuration 710. In various aspects, the one or more optional or conditional mappings for different xRBs may be included in a QoS information element (IE) of mapping configuration 710. It should be noted that while mapping configuration 710 may include one or more xRBs for the optional one-to-many mapping, at any given time, a QoS flow is mapped to one xRB. Base station 704 may be configured to provide or transmit mapping configuration 710, and UE 702 may be configured to receive the mapping configuration. In various aspects, mapping configuration 710 may be provided / transmitted and / or received via at least one of RRC signaling, PDCP signaling, SDAP signaling, or MAC-CE. Thus, the UE 702 may be configured with a mapping configuration 710, and in the illustrated example, the UE 702 maps its QoS flow for PDU set transmission to the first UL DRB. The UE 702 may be configured to provide or transmit one or more PDUs in the PDU set 712 to the base station 704 via the first UL DRB. In various aspects, the one or more PDUs may be a portion of a PDU set or a PDU thereof. Transmission of the one or more PDUs in the PDU set 712 to the base station 704 via the first UL DRB may be based on the absence of a condition associated with transmission of the one or more PDUs in the PDU set 712. In various aspects, the criteria of the condition associated with transmission of the one or more PDUs in the PDU set 712 (e.g., Figure 8806) may include but is not limited to expiration of PSDB, measurement of PSER meeting a PSER threshold, scheduling delay associated with the first UL radio bearer meeting a scheduling threshold, cell reselection hysteresis characteristics, BLER associated with the first UL radio bearer meeting a block error rate BLER threshold, etc.

[0109] At 904 , the UE switches the QoS flow to be mapped to a second UL radio bearer based on the presence of a condition associated with the transmission of the first PDU set of the at least one PDU set. Figure 7 、 Figure 8 An example is illustrated in which the UE 702 performs such switching to map the QoS flows to different UL radio bearers for communicating the PDU set to a network node (eg, base station 704).

[0110] For example, the UE 702 may be configured to, at 714, send a PDU request based on the presence of a condition associated with the transmission of a PDU set or a portion thereof in the PDU set 712 (e.g., Figure 8 That is, the UE 702 may obtain and / or determine the existence of a condition associated with the transmission of one or more PDUs in the PDU set 712 (e.g., Figure 8810 in the example) (e.g., expiration of a PSDB, measurement of a PSER satisfying a PSER threshold, scheduling delay associated with the first UL radio bearer satisfying a scheduling threshold, cell reselection hysteresis characteristics, a BLER associated with the first UL radio bearer satisfying a block error rate (BLER) threshold, etc.), and in response, autonomously switching (at 714) the QoS flow for the UE 702 to a different xRB (e.g., a second UL DRB, as shown in the illustrated example). The UE 702 may be configured to provide or send an indication 716 to the base station 704 of the mapping for switching (at 714) the QoS flow to the different xRB (e.g., to the second UL DRB, as shown in the illustrated example). In one aspect, the indication 716 may be a transmission of an end marker associated with a first identifier of the first UL radio bearer via the first UL radio bearer (e.g., the default xRB), and a transmission via the second UL radio bearer (e.g., the mapped xRB associated with the switching at 714), the transmission including at least one of a start marker associated with the second identifier of the second UL radio bearer or a new data transmission. The UE 702 may then be configured to provide or transmit one or more PDUs in the PDU set 718 to the base station 704 via the second UL DRB, as in the illustrated example. In various aspects, the one or more PDUs may be a portion of a PDU set or a PDU thereof. Transmitting the one or more PDUs in the PDU set 718 to the base station 704 via the second UL DRB may be based on the absence of a condition associated with transmitting the one or more PDUs in the PDU set 718, e.g., a condition similar to that described above for the one or more PDUs in the PDU set 712. In various aspects, the one or more PDUs in the PDU set 718 may be a continuation of the new data transmission of the indication 716.

[0111] Figure 10 1000 is a flow chart of a method of wireless communication in various aspects. The method may be performed by a base station (e.g., base station 102, 704, 804; network entity 614, 1102, 1202, _1260). In some aspects, the method may include combining Figure 7 The aspects described in the communication flow and / or Figures 4 to 6 、 Figure 8 The method provides for configuring uplink PDU sets and reflective QoS in a radio access network, which enables a UE to configure mapping between QoS flows and radio bearers, thereby providing UL flexibility for radio bearer mapping associated with QoS flows, which enables the UE to quickly and dynamically adapt operation for improved signaling throughput and latency reduction in a wireless communication network.

[0112] At 1002 , the base station receives from the UE a first indication of UE capabilities associated with mapping a QoS flow to an UL radio bearer for transmission of at least one PDU set. The receiving can be performed by component 199 , for example. Figure 7 、 Figure 8 An example is illustrated in which base station 704 performs such reception for mapping capabilities from a UE (eg, UE 702).

[0113] For example, the UE 702 may be configured to provide, and the base station 704 may be configured to receive, a mapping capability 706 for one or more QoS flows to one or more UL DRBs. That is, the UE 702 may be configured to provide or send a first indication of UE capabilities associated with mapping a QoS flow to an UL radio bearer for transmission of at least one PDU set, and the base station 704 may be configured to receive the first indication. In various aspects, the mapping capability 706 may indicate that the UE 702 is capable of mapping a given QoS flow to a single UL DRB, or mapping a given QoS flow to more than one UL DRB, e.g., a one-to-N model.

[0114] At 1004, the base station configures the UE with a mapping configuration indicating a configuration mapping between the QoS flow and a first UL radio bearer based on the first indication of the UE capability, wherein the first UL radio bearer is associated with the transmission of at least one PDU set. As an example, the receiving can be performed by component 199. Figure 7 、 Figure 8 An example of such configuration in which the base station 704 performs mapping configuration for a UE (eg, UE 702) is illustrated.

[0115] Based on the mapping capability 706, the base station 704 may be configured to generate, at 708, a mapping configuration 710 indicating a configured mapping between a QoS flow and a first UL DRB for transmission of at least one PDU set. In various aspects, the mapping configuration 710 may include a one-to-one mapping or a one-to-many mapping. In one example of a one-to-many mapping for the mapping configuration 710, a default mapping of a QFI for the configured QoS flow to an xRB (e.g., a first DRB) may be included, where the default radio bearer may be associated with a network handover operation for the UE 702, and one or more optional or conditional mappings for different xRBs (e.g., a second DRB, a third DRB, etc.) may also be included for use in the mapping configuration 710. In various aspects, the one or more optional or conditional mappings for different xRBs may be included in a QoS Information Element (IE) of the mapping configuration 710. It should be noted that while the mapping configuration 710 may include one or more xRBs for the optional one-to-many mapping, at any given time, the QoS flow is mapped to one xRB. The base station 704 may be configured to provide or transmit the mapping configuration 710, and the UE 702 may be configured to receive the mapping configuration. In various aspects, the mapping configuration 710 may be provided / sent and / or received via at least one of RRC signaling, PDCP signaling, SDAP signaling, or MAC-CE. Thus, the UE 702 may be configured with the mapping configuration 710, and in the illustrated example, the UE 702 maps its QoS flow for PDU set transmission to the first UL DRB. The UE 702 may be configured to provide or transmit one or more PDUs in the PDU set 712 to the base station 704 via the first UL DRB. In various aspects, the one or more PDUs may be a portion of a PDU set or a PDU thereof.

[0116] Figure 111 is a diagram illustrating an example of a hardware implementation for an apparatus 1104. The apparatus 1104 may be a UE, a component of a UE, or may implement UE functionality. In some aspects, the apparatus 1104 may include a cellular baseband processor 1124 (also referred to as a modem) coupled to one or more transceivers 1122 (e.g., a cellular RF transceiver). The cellular baseband processor 1124 may include on-chip memory 1124′. In some aspects, the apparatus 1104 may also include one or more subscriber identity module (SIM) cards 1120 and an application processor 1106 coupled to a secure digital (SD) card 1108 and a screen 1110. The application processor 1106 may include on-chip memory 1106′. In some aspects, the device 1104 may further include a Bluetooth module 1112, a WLAN module 1114, an SPS module 1116 (e.g., a GNSS module), one or more sensor modules 1118 (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 1126, a power supply 1130, and / or a camera 1132. The Bluetooth module 1112, the WLAN module 1114, and the SPS module 1116 may include an on-chip transceiver (TRX) (or, in some cases, only a receiver (RX)). The Bluetooth module 1112, the WLAN module 1114, and the SPS module 1116 may include their own dedicated antennas and / or utilize an antenna 1180 for communication. The cellular baseband processor 1124 communicates with the UE 104 and / or RUs associated with the network entity 1102 via the transceiver 1122 via one or more antennas 1180. The cellular baseband processor 1124 and the application processor 1106 may each include computer-readable media / memory 1124', 1106', respectively. The additional memory module 1126 may also be considered computer-readable media / memory. Each computer-readable medium / memory 1124', 1106', 1126 may be non-transitory. The cellular baseband processor 1124 and the application processor 1106 are each responsible for general processing, including executing software stored on the computer-readable media / memory. When executed by the cellular baseband processor 1124 / application processor 1106, the software enables the cellular baseband processor 1124 / application processor 1106 to perform the various functions described above. The computer-readable media / memory may also be used to store data manipulated by the cellular baseband processor 1124 / application processor 1106 when executing the software.The cellular baseband processor 1124 / application processor 1106 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 device 1104 may be a processor chip (modem and / or applications) and include only the cellular baseband processor 1124 and / or the application processor 1106, and in another configuration, the device 1104 may be the entire UE (e.g., see ). Figure 3 UE 350) and includes additional modules of device 1104.

[0117] As discussed above, component 198 may be configured to receive, from a network node, a mapping configuration indicating a configuration mapping between a QoS flow and a first UL radio bearer associated with the transmission of at least one PDU set. Component 198 may be configured to switch the QoS flow to mapping to a second UL radio bearer based on the presence of a condition associated with the transmission of a first PDU set in the at least one PDU set. Component 198 may be configured to transmit, to the network node via the first UL radio bearer, one or more PDUs in the at least one PDU set, based on the absence of the condition, before switching the QoS flow to mapping to the second UL radio bearer. Component 198 may be configured to obtain an indication of the presence of the condition associated with the transmission of the first PDU set in the at least one PDU set from at least one of operations performed by the network node or the UE. Component 198 may be configured to receive an indication of criteria for the condition from the network node via at least one of RRC signaling, PDCP signaling, RLC signaling, or MAC-CE. The component 198 may be configured to: store the criteria of the condition in a memory of the UE. The component 198 may be configured to: send an end marker associated with the first identifier of the first UL radio bearer to the network node via the first UL radio bearer; and send at least one of the following to the network node and via the second UL radio bearer: a start marker associated with the second identifier of the second UL radio bearer, or new data transmission. The component 198 may be configured to: receive an additional mapping configuration indicating an additional configuration mapping between the QoS flow and at least one of the first UL radio bearer or the third UL radio bearer from the network node via a DL reflection QoS process; and switch the QoS flow based on the additional mapping configuration to map the QoS flow to the at least one of the first UL radio bearer or the third UL radio bearer. The component 198 may also be configured to perform a combination Figure 9 、 Figure 10 Any of the aspects described in the flowcharts of any of the and / or by Figures 4 to 81106. Component 198 may be within the cellular baseband processor 1124, the application processor 1106, or both the cellular baseband processor 1124 and the application processor 1106. Component 198 may be one or more hardware components specifically configured to perform the stated processes / algorithms, implemented by one or more processors configured to perform the stated processes / algorithms, stored in a computer-readable medium for implementation by one or more processors, or some combination thereof. As shown, the apparatus 1104 may include a variety of components configured for various functions. In one configuration, the apparatus 1104 (and specifically the cellular baseband processor 1124 and / or the application processor 1106) may include means for receiving, from a network node, a mapping configuration indicating a configuration mapping between a QoS flow and a first UL radio bearer, wherein the first UL radio bearer is associated with the transmission of at least one PDU set. In this configuration, the apparatus 1104 (and specifically the cellular baseband processor 1124 and / or the application processor 1106) may include means for causing the QoS flow to switch to mapping to the second UL radio bearer based on the presence of a condition associated with the transmission of a first PDU set in the at least one PDU set. In one configuration, the apparatus 1104 (and specifically the cellular baseband processor 1124 and / or the application processor 1106) may include means for transmitting one or more PDUs in the at least one PDU set to the network node via the first UL radio bearer based on the absence of the condition and before causing the QoS flow to switch to mapping to the second UL radio bearer. In one configuration, the apparatus 1104 (and specifically the cellular baseband processor 1124 and / or the application processor 1106) may include means for obtaining an indication of the presence of the condition associated with the transmission of the first PDU set in the at least one PDU set from at least one of the network node or operations performed at the UE. In one configuration, the apparatus 1104 (and in particular the cellular baseband processor 1124 and / or the application processor 1106) may include means for receiving an indication of criteria for a condition from a network node via at least one of RRC signaling, PDCP signaling, RLC signaling, or MAC-CE. In one configuration, the apparatus 1104 (and in particular the cellular baseband processor 1124 and / or the application processor 1106) may include means for storing the criteria for the condition in a memory of the UE.In one configuration, the apparatus 1104 (and specifically the cellular baseband processor 1124 and / or the application processor 1106) may include means for: transmitting an end marker associated with a first identifier of the first UL radio bearer to the network node via the first UL radio bearer; and transmitting at least one of the following to the network node and via the second UL radio bearer: a start marker associated with a second identifier of the second UL radio bearer, or a new data transmission. In one configuration, the apparatus 1104 (and specifically the cellular baseband processor 1124 and / or the application processor 1106) may include means for: receiving an additional mapping configuration from the network node via a DL Reflective QoS procedure indicating an additional configuration mapping between the QoS flow and at least one of the first UL radio bearer or the third UL radio bearer; and switching the QoS flow based on the additional mapping configuration to map the QoS flow to the at least one of the first UL radio bearer or the third UL radio bearer. The apparatus may also include means for performing the combining. Figure 9 、 Figure 10 Any of the aspects described in the flowcharts of any of the and / or by Figures 4 to 8 A means for any of the aspects performed by a UE in any of the above. A means may be a component 198 of the apparatus 1104 configured to perform the functions recited by the means. As described above, the apparatus 1104 may include a TX processor 368, an RX processor 356, and a controller / processor 359. Thus, in one configuration, a means may be the TX processor 368, the RX processor 356, and / or the controller / processor 359 configured to perform the functions recited by the means.

[0118] Figure 12Diagram 1200 illustrates an example hardware implementation for a network entity 1202. Network entity 1202 may be a base station (BS), a component of a BS, or may implement BS functionality. Network entity 1202 may include at least one of a CU 1210, a DU 1230, or a RU 1240. For example, depending on the layer functionality handled by component 199, network entity 1202 may include a CU 1210; both the CU 1210 and the DU 1230; each of the CU 1210, the DU 1230, and the RU 1240; the DU 1230; both the DU 1230 and the RU 1240; or the RU 1240. CU 1210 may include a CU processor 1212. CU processor 1212 may include on-chip memory 1212′. In some aspects, CU 1210 may also include an additional memory module 1214 and a communication interface 1218. The CU 1210 communicates with the DU 1230 via a midhaul link, such as an F1 interface. The DU 1230 may include a DU processor 1232. The DU processor 1232 may include on-chip memory 1232′. In some aspects, the DU 1230 may also include an additional memory module 1234 and a communication interface 1238. The DU 1230 communicates with the RU 1240 via a fronthaul link. The RU 1240 may include a RU processor 1242. The RU processor 1242 may include on-chip memory 1242′. In some aspects, the RU 1240 may also include an additional memory module 1244, one or more transceivers 1246, an antenna 1280, and a communication interface 1248. The RU 1240 communicates with the UE 104. The on-chip memories 1212′, 1232′, 1242′ and the additional memory modules 1214, 1234, 1244 may each be considered a computer-readable medium / memory. Each computer-readable medium / memory may be non-transitory. Each of processors 1212, 1232, and 1242 is responsible for general processing, including executing software stored on the computer-readable medium / memory. The software, when executed by the corresponding processor, 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.

[0119] As discussed above, component 199 can be configured to receive, from a UE, a first indication of UE capabilities associated with mapping a QoS flow to an UL radio bearer for transmission of at least one PDU set. Component 199 can be configured to, based on the first indication of the UE capabilities, configure the UE with a mapping configuration indicating a configuration mapping between the QoS flow and a first UL radio bearer associated with transmission of the at least one PDU set. Where the mapping configuration further indicates at least one conditional mapping between the QoS flow and at least one additional UL radio bearer, wherein the at least one conditional mapping is included in a QoS IE, component 199 can be configured to receive, from the UE, a second indication that the UE has switched the QoS flow to be mapped to a second UL radio bearer based on the presence of a condition associated with the transmission of the first PDU set in the at least one PDU set, wherein the second UL radio bearer is one of the UL radio bearers. Component 199 can be configured to receive, from the UE and prior to receiving the second indication, one or more PDUs in the at least one PDU set via the first UL radio bearer based on the absence of the condition. The component 199 may be configured to provide the UE with a third indication of the existence of the condition associated with the transmission of the first PDU set in the at least one PDU set. The component 199 may be configured to provide the UE with a fourth indication of the criteria of the condition via at least one of RRC signaling, PDCP signaling, RLC signaling, or MAC-CE. The component 199 may be configured to receive from the UE via the first UL radio bearer an end marker associated with the first identifier of the first UL radio bearer; and receive from the UE and via the second UL radio bearer at least one of: a start marker associated with the second identifier of the second UL radio bearer, or a new data transmission. The component 199 may also be configured to perform a combined Figure 9 、 Figure 10 Any of the aspects described in the flowcharts of any of the and / or by Figures 4 to 8Any of the aspects performed by a network node or base station in any of CU 1210, DU 1230, and RU 1240. Component 199 may be within one or more processors of one or more of CU 1210, DU 1230, and RU 1240. Component 199 may be one or more hardware components specifically configured to perform the recited processes / algorithms, implemented by one or more processors configured to perform the recited processes / algorithms, stored on a computer-readable medium for implementation by one or more processors, or some combination thereof. Network entity 1202 may include various components configured for various functions. In one configuration, network entity 1202 may include means for receiving, from a UE, a first indication of UE capabilities associated with mapping a QoS flow to an UL radio bearer for transmission of at least one PDU set. In this configuration, network entity 1202 may include means for configuring the UE with a mapping configuration indicating a configuration mapping between the QoS flow and a first UL radio bearer associated with transmission of at least one PDU set based on the first indication of the UE capabilities, wherein the first UL radio bearer is associated with transmission of at least one PDU set. In one configuration, where the mapping configuration further indicates at least one conditional mapping between the QoS flow and at least one additional UL radio bearer, wherein the at least one conditional mapping is included in a QoS IE, the network entity 1202 may include means for: receiving from the UE a second indication that the UE has switched the QoS flow to be mapped to a second UL radio bearer based on the presence of a condition associated with the transmission of a first PDU set in the at least one PDU set, wherein the second UL radio bearer is one of the UL radio bearers. In one configuration, the network entity 1202 may include means for: receiving from the UE via the first UL radio bearer one or more PDUs in the at least one PDU set based on the absence of the condition and prior to receiving the second indication. In one configuration, the network entity 1202 may include means for: providing to the UE a third indication of the presence of the condition associated with the transmission of the first PDU set in the at least one PDU set. In one configuration, the network entity 1202 may include means for providing the UE with a fourth indication of the criteria of the condition via at least one of RRC signaling, PDCP signaling, RLC signaling, or MAC-CE. In one configuration, the network entity 1202 may include means for receiving from the UE via the first UL radio bearer an end marker associated with a first identifier of the first UL radio bearer; and receiving from the UE and via the second UL radio bearer at least one of: a start marker associated with a second identifier of the second UL radio bearer, or a new data transmission. The apparatus may also include means for performing a combined Figure 9 、 Figure 10Any of the aspects described in the flowcharts of any of the and / or by Figures 4 to 8 12. A component may be a component 199 of the network entity 1202 configured to perform the functions recited by the component. As described above, the network entity 1202 may include a TX processor 316, an RX processor 370, and a controller / processor 375. Thus, in one configuration, the component may be the TX processor 316, the RX processor 370, and / or the controller / processor 375 configured to perform the functions recited by the component.

[0120] Traffic flows in wireless communication networks may have various characteristics, including, for example, layer attributes and time frames for latency. For example, extended reality (XR) traffic for both uplink and downlink traffic may have characteristics such as application layer attributes and short time frames for exchange. Longer latency for traffic flows may degrade the user experience with XR applications or devices. XR traffic bursts may be periodic, but their arrival may include some temporal jitter, and for some bursts, the XR packet size and number of packets may be variable. In other words, XR service characteristics such as periodicity, multi-flow, jitter, latency, and reliability may impact signaling throughput, latency, and other operations at base stations and other devices (such as UEs) on the wireless communication network. Furthermore, XR traffic bursts may be associated with a QoS flow mapped to a given radio bearer at the UE. PDU sets may be delivered to applications by the RAN as an integrated unit. For example, a PDU set may be associated with a video frame or a slice within a video frame. PDUs within the same PDU set may share common QoS attributes, and PDU sets may have different decoding criteria, depending on the specific implementation of each application. Additionally, a PDU may be discarded by the UE and / or RAN due to various conditions. For example, a PDU may be discarded when there is no remaining delay budget or one or more of its associated Layer 2 timers have expired. A PDU may also be discarded when the content criteria of its associated PDU set may no longer be met or have been met.

[0121] Various aspects of this document may provide UL flexibility for radio bearer mapping associated with a QoS flow, which enables the UE to quickly and dynamically adapt operation for improved signaling throughput and latency reduction in a wireless communication network. Although the network may provide various configurations for a QoS flow to the UE, the aspects of this document enable the UE to adjust the configuration it implements based on dynamic radio conditions and network traffic, which improves signaling and latency. For example, the aspects of this document provide for the UE to receive a mapping configuration from a network node (e.g., a base station) indicating a configuration mapping between a QoS flow and a first UL radio bearer associated with the transmission of at least one PDU set. The network node may configure the UE via semi-static RRC signaling, dynamic RQoS, etc. Thus, the UE may be enabled and configured to switch the QoS flow to be mapped to a second UL radio bearer based on the presence of a condition associated with the transmission of the first PDU set in the at least one PDU set. Similarly, the aspects of this document enable the network node (e.g., a base station) to receive from the UE a first indication of a UE capability associated with mapping a QoS flow to an UL radio bearer for the transmission of at least one PDU set. Thus, the UE may be enabled and configured with a mapping configuration indicating a configuration mapping between a QoS flow and a first UL radio bearer associated with transmission of the at least one PDU set based on the first indication of the UE capability.

[0122] It should be understood that the specific order or hierarchy of blocks in the disclosed process / flowchart is merely illustrative of exemplary methods. It should be understood that the specific order or hierarchy of blocks in the process / flowchart may be rearranged based on design preferences. Furthermore, some blocks may be combined or omitted. The accompanying method claims provide elements of the various blocks in a sample order, but are not limited to the specific order or hierarchy provided.

[0123] The foregoing description is provided to enable any person skilled in the art to practice 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 aspects described herein, but should be given the full scope consistent with the language claims. Unless specifically stated otherwise, reference to an element in the singular does not mean "one and only one", but "one or more". Terms such as "if", "when" and "while" do not imply a direct temporal relationship or reaction. That is, these phrases, such as "when...", do not mean immediate action in response to the occurrence of an action or during the occurrence of an action, but simply imply that if the conditions are met, the action will occur, but there is no need for a specific or immediate time limit for the occurrence of the action. The word "exemplary" is used herein to mean "used as an example, instance, or illustration". Any aspect described as "exemplary" herein is not necessarily interpreted as being preferred or having an advantage over other aspects. Unless otherwise specified, 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, which may include multiple As, multiple Bs, or multiple Cs. 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 be only A, only B, only C, A and B, A and C, B and C, or A, B, and C, where any such combination 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 of X, X will include one or more elements. If a first device receives data from a second device or sends data to a second device, the data may be received / sent directly between the first device and the second device, or indirectly between the first device and the second device through a collection of devices. A device configured to "output" data (such as, transmit, signal or message) may (for example) send the data with a transceiver, or may transmit the data to a device that sends the data. A device configured to "obtain" data (such as, transmit, signal or message) may, for example, receive the data with a transceiver, or may obtain the data from a device that receives the data. The information stored in the memory includes instructions and / or data. All structural and functional equivalents of the elements of the various aspects described throughout this disclosure that are known or later become known to those of ordinary skill in the art are expressly incorporated herein by reference and are encompassed by the claims.Furthermore, nothing disclosed herein is intended to be dedicated to the public, regardless of whether such disclosure is explicitly recited in the claims. Words such as "module," "mechanism," "element," and "device" are not intended to replace the word "component." Thus, no claim element is to be construed as part-plus-function unless the element is explicitly recited using the phrase "means for..."

[0124] As used herein, the phrase "based on" should not be interpreted as referring to a closed set of information, one or more conditions, one or more factors, etc. In other words, the phrase "based on A" (where "A" can be information, conditions, factors, etc.) should be interpreted as "based at least on A" unless specifically stated differently.

[0125] The following aspects are merely illustrative and may be combined with other aspects or teachings described herein without limitation.

[0126] Aspect 1 is a method for wireless communication at a UE, the method comprising: receiving a mapping configuration indicating a configuration mapping between a quality of service (QoS) flow and a first uplink (UL) radio bearer from a network node, wherein the first UL radio bearer is associated with the transmission of at least one packet data unit (PDU) set; and switching the QoS flow to be mapped to a second UL radio bearer based on the existence of a condition associated with the transmission of the first PDU set in the at least one PDU set.

[0127] Aspect 2 is a method according to aspect 1, wherein receiving the mapping configuration includes: receiving the mapping configuration via at least one of radio resource control (RRC) signaling, packet data convergence protocol (PDCP) signaling, service data adaptation protocol (SDAP) signaling, or medium access control (MAC) control element (MAC-CE).

[0128] Aspect 3 is a method according to any one of aspects 1 and 2, wherein the mapping configuration indicates the first UL radio bearer as a default UL radio bearer associated with a network handover operation for the UE.

[0129] Aspect 4 is a method according to any one of aspects 1 to 3, wherein the mapping configuration further indicates at least one conditional mapping between the QoS flow and at least one additional UL radio bearer, wherein the at least one conditional mapping is included in a QoS information element (IE), wherein the second UL radio bearer is one of the at least one additional UL radio bearer.

[0130] Aspect 5 is a method according to any one of aspects 1 to 4, the method further comprising: sending one or more PDUs in the at least one PDU set to the network node via the first UL radio bearer based on the absence of the condition and before switching the QoS flow to be mapped to the second UL radio bearer.

[0131] Aspect 6 is a method according to any one of aspects 1 to 5, the method further comprising: obtaining an indication of the existence of the condition associated with the sending of the first PDU set in the at least one PDU set from at least one of the network node or the operations performed at the UE.

[0132] Aspect 7 is a method according to any one of aspects 1 to 6, wherein the condition includes at least one of the following: expiration of a PDU set delay budget (PSDB); measurement of a PDU set error rate (PSER) that meets a PSER threshold; a scheduling delay associated with the first UL radio bearer that meets a scheduling threshold; a cell reselection hysteresis characteristic; or a block error rate (BLER) associated with the first UL radio bearer that meets a BLER threshold.

[0133] Aspect 8 is a method according to any one of Aspects 1 to 7, the method further comprising: receiving an indication of the criteria of the condition from the network node via at least one of radio resource control (RRC) signaling, packet data convergence protocol (PDCP) signaling, radio link control (RLC) signaling, or medium access control (MAC) control element (MAC-CE); and storing the criteria of the condition in a memory of the UE.

[0134] Aspect 9 is a method according to any one of Aspects 1 to 8, the method further comprising: sending an end marker associated with the first identifier of the first UL radio bearer to the network node via the first UL radio bearer; and sending at least one of the following to the network node and via the second UL radio bearer: a start marker associated with the second identifier of the second UL radio bearer, or new data transmission.

[0135] Aspect 10 is a method according to any one of Aspects 1 to 9, the method further comprising: receiving an additional mapping configuration indicating an additional configuration mapping between the QoS flow and at least one of the first UL radio bearer or the third UL radio bearer from the network node via a downlink (DL) reflection QoS process; and switching the QoS flow based on the additional mapping configuration to map the QoS flow to the at least one of the first UL radio bearer or the third UL radio bearer.

[0136] Aspect 11 is a method for wireless communication at a network node, the method comprising: receiving from a user equipment (UE) a first indication of a UE capability associated with mapping a quality of service (QoS) flow to an uplink (UL) radio bearer for transmission of at least one packet data unit (PDU) set; and configuring the UE with a mapping configuration indicating a configuration mapping between the QoS flow and a first UL radio bearer based on the first indication of the UE capability, wherein the first UL radio bearer is associated with transmission of at least one PDU set.

[0137] Aspect 12 is a method according to aspect 11, wherein configuring the UE includes: providing the mapping configuration to the UE via at least one of radio resource control (RRC) signaling, packet data convergence protocol (PDCP) signaling, service data adaptation protocol (SDAP) signaling, or medium access control (MAC) control element (MAC-CE).

[0138] Aspect 13 is a method according to any one of aspects 11 and 12, wherein the mapping configuration indicates the first UL radio bearer as a default UL radio bearer associated with a network handover operation for the UE.

[0139] Aspect 14 is a method according to any one of Aspects 11 to 13, wherein the mapping configuration further indicates at least one conditional mapping between the QoS flow and at least one additional UL radio bearer, wherein the at least one conditional mapping is included in a QoS information element (IE); the method also includes: receiving a second indication from the UE that the UE has switched the QoS flow to be mapped to a second UL radio bearer based on the existence of a condition associated with the transmission of the first PDU set of the at least one PDU set, wherein the second UL radio bearer is one of the UL radio bearers.

[0140] Aspect 15 is a method according to aspect 14, further comprising: receiving one or more PDUs of the at least one PDU set from the UE via the first UL radio bearer based on the absence of the condition and before receiving the second indication.

[0141] Aspect 16 is a method according to aspect 14, the method further comprising providing, for the UE, a third indication of the existence of the condition associated with the transmission of the first of the at least one PDU sets.

[0142] Aspect 17 is a method according to aspect 14, wherein the condition includes at least one of the following: expiration of a PDU set delay budget (PSDB); measurement of a PDU set error rate (PSER) that meets a PSER threshold; a scheduling delay associated with the first UL radio bearer that meets a scheduling threshold; a cell reselection hysteresis characteristic; or a block error rate (BLER) associated with the first UL radio bearer that meets a BLER threshold.

[0143] Aspect 18 is a method according to aspect 14, the method further comprising: providing a fourth indication of the criteria of the condition to the UE via at least one of radio resource control (RRC) signaling, packet data convergence protocol (PDCP) signaling, radio link control (RLC) signaling, or medium access control (MAC) control element (MAC-CE).

[0144] Aspect 19 is a method according to aspect 14, the method further comprising: receiving an end marker associated with the first identifier of the first UL radio bearer from the UE via the first UL radio bearer; and receiving at least one of the following from the UE and via the second UL radio bearer: a start marker associated with the second identifier of the second UL radio bearer, or new data transmission.

[0145] Aspect 20 is a method according to aspect 14, the method further comprising: providing the UE with an additional mapping configuration indicating an additional configuration mapping between the QoS flow and at least one of the first UL radio bearer or the third UL radio bearer via a downlink (DL) reflection QoS process, wherein the additional mapping configuration is configured to cause the UE to switch the QoS flow to be mapped to the at least one of the first UL radio bearer or the third UL radio bearer.

[0146] Aspect 21 is an apparatus for wireless communication, comprising means for implementing any one of aspects 1 to 10.

[0147] Aspect 22 is a computer-readable medium (eg, non-transitory computer-readable medium) storing computer-executable code, which, when executed by at least one processor, causes the at least one processor to implement any one of aspects 1 to 10.

[0148] Aspect 23 is an apparatus for wireless communication at a network node. The apparatus includes: a memory; and at least one processor, the at least one processor being coupled to the memory and configured to implement any one of aspects 1 to 10 based at least in part on information stored in the memory.

[0149] Aspect 24 is the apparatus of aspect 23, further comprising: at least one of a transceiver or an antenna coupled to the at least one processor.

[0150] Aspect 25 is an apparatus for wireless communication, comprising means for implementing any one of aspects 11 to 20.

[0151] Aspect 26 is a computer-readable medium (eg, non-transitory computer-readable medium) storing computer-executable code that, when executed by at least one processor, causes the at least one processor to implement any one of aspects 11 to 20.

[0152] Aspect 27 is an apparatus for wireless communication at a network node. The apparatus includes: a memory; and at least one processor, the at least one processor being coupled to the memory and configured to implement any one of aspects 11 to 20 based at least in part on information stored in the memory.

[0153] Aspect 28 is the apparatus of aspect 27, further comprising: at least one of a transceiver or an antenna coupled to the at least one processor.

Claims

1. An apparatus for wireless communication at a user equipment (UE), the apparatus comprising: Memory; and at least one processor coupled to the memory and, based at least in part on information stored in the memory, configured to: receiving, from a network node, a mapping configuration indicating a configuration mapping between a quality of service (QoS) flow and a first uplink (UL) radio bearer, wherein the first UL radio bearer is associated with transmission of at least one packet data unit (PDU) set; as well as The QoS flow is switched to be mapped to a second UL radio bearer based on an existence of a condition associated with the transmission of a first PDU set of the at least one PDU set.

2. The apparatus of claim 1 , wherein receiving the mapping configuration comprises: The mapping configuration is received via at least one of Radio Resource Control (RRC) signaling, Packet Data Convergence Protocol (PDCP) signaling, Service Data Adaptation Protocol (SDAP) signaling, or a Medium Access Control (MAC) Control Element (MAC-CE). 3 . The apparatus of claim 1 , wherein the mapping configuration indicates the first UL radio bearer as a default UL radio bearer associated with a network handover operation for the UE.

4. The apparatus of claim 1 , wherein the mapping configuration further indicates at least one conditional mapping between the QoS flow and at least one additional UL radio bearer, wherein the at least one conditional mapping is included in a QoS Information Element (IE), wherein the second UL radio bearer is one of the at least one additional UL radio bearer.

5. The apparatus of claim 1 , wherein the at least one processor is further configured to: One or more PDUs of the at least one PDU set are sent to the network node via the first UL radio bearer based on the absence of the condition and before switching the QoS flow to be mapped to the second UL radio bearer.

6. The apparatus of claim 1 , wherein the at least one processor is further configured to: The indication of the existence of the condition associated with the sending of the first of the at least one PDU sets is obtained from at least one of the network node or an operation performed at the UE.

7. The apparatus of claim 1 , wherein the condition comprises at least one of: expiry of the PDU Set Delay Budget (PSDB); Measurement of the PDU Set Error Rate (PSER) meeting the PSER threshold; a scheduling delay associated with the first UL radio bearer that satisfies a scheduling threshold; cell reselection hysteresis characteristics; or A block error rate (BLER) associated with the first UL radio bearer satisfies a BLER threshold.

8. The apparatus of claim 1 , wherein the at least one processor is further configured to: receiving an indication of criteria of the condition from the network node via at least one of radio resource control (RRC) signaling, packet data convergence protocol (PDCP) signaling, radio link control (RLC) signaling, or a medium access control (MAC) control element (MAC-CE); or The criteria for the condition are stored in the memory of the UE.

9. The apparatus of claim 1 , wherein the at least one processor is further configured to: sending, to the network node via the first UL radio bearer, an end marker associated with a first identifier of the first UL radio bearer; and At least one of the following is sent to the network node and via the second UL radio bearer: a start marker associated with a second identifier of the second UL radio bearer, or New data sent.

10. The apparatus of claim 1 , wherein the at least one processor is further configured to: receiving, from the network node via a downlink (DL) Reflective QoS procedure, an additional mapping configuration indicating an additional configuration mapping between the QoS flow and at least one of the first UL radio bearer or a third UL radio bearer; and The QoS flow is switched based on the additional mapping configuration to map the QoS flow to the at least one of the first UL radio bearer or the third UL radio bearer.

11. An apparatus for wireless communication at a network node, the apparatus comprising: Memory; and at least one processor coupled to the memory and, based at least in part on information stored in the memory, configured to: receiving, from a user equipment (UE), a first indication of UE capabilities associated with mapping a quality of service (QoS) flow with an uplink (UL) radio bearer for transmission of at least one packet data unit (PDU) set; and The UE is configured with a mapping configuration indicating a configuration mapping between the QoS flow and a first UL radio bearer associated with transmission of the at least one PDU set based on the first indication of the UE capabilities.

12. The apparatus of claim 11 , wherein configuring the UE comprises: The mapping configuration is provided to the UE via at least one of Radio Resource Control (RRC) signaling, Packet Data Convergence Protocol (PDCP) signaling, Service Data Adaptation Protocol (SDAP) signaling, or Medium Access Control (MAC) Control Element (MAC-CE). 13 . The apparatus of claim 11 , wherein the mapping configuration indicates the first UL radio bearer as a default UL radio bearer associated with a network handover operation for the UE.

14. The apparatus of claim 11 , wherein the mapping configuration further indicates at least one conditional mapping between the QoS flow and at least one additional UL radio bearer, wherein the at least one conditional mapping is included in a QoS Information Element (IE); wherein the at least one processor is further configured to: A second indication is received from the UE that the UE has switched the QoS flow to be mapped to a second UL radio bearer based on the existence of a condition associated with the transmission of the first PDU set of the at least one PDU set, wherein the second UL radio bearer is one of the UL radio bearers.

15. The apparatus of claim 14, wherein the at least one processor is further configured to: One or more PDUs of the at least one PDU set are received from the UE via the first UL radio bearer based on the absence of the condition and before receiving the second indication.

16. The apparatus of claim 14, wherein the at least one processor is further configured to: A third indication of the existence of the condition associated with the sending of the first of the at least one PDU sets is provided to the UE.

17. The apparatus of claim 14, wherein the condition comprises at least one of: expiry of the PDU Set Delay Budget (PSDB); Measurement of the PDU Set Error Rate (PSER) meeting the PSER threshold; a scheduling delay associated with the first UL radio bearer that satisfies a scheduling threshold; cell reselection hysteresis characteristics; or A block error rate (BLER) associated with the first UL radio bearer satisfies a BLER threshold.

18. The apparatus of claim 14, wherein the at least one processor is further configured to: A fourth indication of criteria of the condition is provided to the UE via at least one of radio resource control (RRC) signaling, packet data convergence protocol (PDCP) signaling, radio link control (RLC) signaling, or a medium access control (MAC) control element (MAC-CE).

19. The apparatus of claim 14, wherein the at least one processor is further configured to: receiving, from the UE via the first UL radio bearer, an end marker associated with a first identifier of the first UL radio bearer; and receiving, from the UE and via the second UL radio bearer, at least one of: a start marker associated with a second identifier of the second UL radio bearer, or New data sent.

20. The apparatus of claim 14, wherein the at least one processor is further configured to: An additional mapping configuration indicating an additional configuration mapping between the QoS flow and at least one of the first UL radio bearer or the third UL radio bearer is provided to the UE via a downlink (DL) reflected QoS procedure, wherein the additional mapping configuration is configured to cause the UE to switch the QoS flow to be mapped to the at least one of the first UL radio bearer or the third UL radio bearer.

21. A method of wireless communication at a user equipment (UE), the method comprising: receiving, from a network node, a mapping configuration indicating a configuration mapping between a quality of service (QoS) flow and a first uplink (UL) radio bearer, wherein the first UL radio bearer is associated with transmission of at least one packet data unit (PDU) set; as well as The QoS flow is switched to be mapped to a second UL radio bearer based on an existence of a condition associated with the transmission of a first PDU set of the at least one PDU set.

22. The method of claim 21 , wherein receiving the mapping configuration comprises: The mapping configuration is received via at least one of Radio Resource Control (RRC) signaling, Packet Data Convergence Protocol (PDCP) signaling, Service Data Adaptation Protocol (SDAP) signaling, or a Medium Access Control (MAC) Control Element (MAC-CE).

23. The method of claim 21, wherein the mapping configuration indicates the first UL radio bearer as a default UL radio bearer associated with a network handover operation for the UE.

24. The method of claim 21 , wherein the mapping configuration further indicates at least one conditional mapping between the QoS flow and at least one additional UL radio bearer, wherein the at least one conditional mapping is included in a QoS Information Element (IE), wherein the second UL radio bearer is one of the at least one additional UL radio bearer.

25. The method according to claim 21, further comprising: One or more PDUs of the at least one PDU set are sent to the network node via the first UL radio bearer based on the absence of the condition and before switching the QoS flow to be mapped to the second UL radio bearer.

26. A method of wireless communication at a network node, the method comprising: receiving, from a user equipment (UE), a first indication of UE capabilities associated with mapping a quality of service (QoS) flow with an uplink (UL) radio bearer for transmission of at least one packet data unit (PDU) set; and The UE is configured with a mapping configuration indicating a configuration mapping between the QoS flow and a first UL radio bearer associated with transmission of the at least one PDU set based on the first indication of the UE capabilities.

27. The method of claim 26, wherein configuring the UE comprises: The mapping configuration is provided to the UE via at least one of Radio Resource Control (RRC) signaling, Packet Data Convergence Protocol (PDCP) signaling, Service Data Adaptation Protocol (SDAP) signaling, or Medium Access Control (MAC) Control Element (MAC-CE).

28. The method of claim 26, wherein the mapping configuration indicates the first UL radio bearer as a default UL radio bearer associated with a network handover operation for the UE.

29. The method of claim 26, wherein the mapping configuration further indicates at least one conditional mapping between the QoS flow and at least one additional UL radio bearer, wherein the at least one conditional mapping is included in a QoS Information Element (IE); The method further comprises: A second indication is received from the UE that the UE has switched the QoS flow to be mapped to a second UL radio bearer based on the existence of a condition associated with the transmission of the first PDU set of the at least one PDU set, wherein the second UL radio bearer is one of the UL radio bearers.

30. The method of claim 29, further comprising: One or more PDUs of the at least one PDU set are received from the UE via the first UL radio bearer based on the absence of the condition and before receiving the second indication.

Images