Switching between sub-band full duplex mode and half duplex mode for different periodicity

Abstract

An apparatus and method for switching between an SBFD mode and an HD mode for different periodicity are described. An apparatus is configured to operate in an SBFD mode or an HD mode associated with an SBFD operation. The SBFD operation is associated with a set of SBs, and the HD pattern is associated with a set of time / frequency resources. The apparatus is configured to obtain a first indication of a time / frequency location of each SB or a second indication of the time / frequency resource, and switch to operate in the other of the SBFD mode or the HD mode based on the first indication or the second indication. Another apparatus is configured to configure a time / frequency location of an SB of an SBFD operation associated with an SBFD mode and a time / frequency resource of an HD mode, and to send a first indication of the time / frequency location or a second indication of the time / frequency resource for a UE.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims the benefit of U.S. patent application serial number 17 / 933,839, entitled “SWITCHING BETWEEN SUBBAND ​​FULL DUPLEX AND HALFDUPLEX MODES FOR DIFFERENT PERIODICITIES” and filed on September 20, 2022, 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 utilizing sub-band full-duplex and half-duplex modes of operation. Background Art

[0004] Wireless communication systems are widely deployed to provide a variety of telecommunication services, such as telephony, video, data, messaging, and broadcast. 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 continuous mobile broadband evolution promulgated by the Third Generation Partnership Project (3GPP) to meet new requirements associated with latency, reliability, security, scalability (e.g., with the Internet of Things (IoT)) and other requirements. 5GNR includes services associated with enhanced mobile broadband (eMBB), massive machine type communication (mMTC), and ultra-reliable low latency communication (URLLC). Certain aspects of 5G NR may be based on 4G Long Term Evolution (LTE) standards. It is necessary to further improve 5G NR technology. 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] A simplified summary of one or more aspects is presented below to provide a basic understanding of these aspects. This summary is not an extensive review of all contemplated aspects. This summary neither identifies the key or important elements of all aspects, nor describes 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 a more detailed description presented later.

[0007] In one aspect of the present disclosure, a method, computer-readable medium, and apparatus for wireless communication at a user equipment (UE) are provided. The apparatus is configured to operate in at least one of a downlink (DL) or uplink (UL) SBFD mode or a half-duplex (HD) mode associated with a sub-band (SB) full-duplex (SBFD) operation, wherein the SBFD operation is associated with a first set of time and frequency resources, and the HD mode is associated with a second set of time and frequency resources, and wherein the first set of time and frequency resources includes a set of DL and UL SBs. The apparatus is further configured to obtain at least one of: (1) a first indication of the time and frequency position of each DL or UL SB in the set of DL and UL SBs in the SBFD operation associated with the SBFD mode, or (2) a second indication of the second set of time and frequency resources associated with the HD mode. In addition, the apparatus is further configured to switch to operating in the other of the SBFD mode or the HD mode based on at least one of the first indication or the second indication.

[0008] In this aspect, the method includes operating in at least one of a downlink (DL) or uplink (UL) SBFD mode or a half-duplex (HD) mode associated with sub-band (SB) full-duplex (SBFD) operation, wherein the SBFD operation is associated with a first set of time and frequency resources and the HD mode is associated with a second set of time and frequency resources, and wherein the first set of time and frequency resources includes a set of DL and UL SBs. The method also includes obtaining at least one of: (1) a first indication of a time and frequency position of each DL or UL SB in the set of DL and UL SBs in the SBFD operation associated with the SBFD mode, or (2) a second indication of the second set of time and frequency resources associated with the HD mode. Additionally, the method also includes switching to operating in the other of the SBFD mode or the HD mode based on at least one of the first indication or the second indication.

[0009] In another aspect of the present disclosure, a method, a computer-readable medium, and an apparatus for wireless communication at a network node are provided. The apparatus is configured to configure a time and frequency position for each time and frequency resource in a first set of time and frequency resources in a sub-band (SB) full-duplex (SBFD) mode and a second set of time and frequency resources associated with a half-duplex (HD) mode, wherein the first set of time and frequency resources includes a set of downlink (DL) and uplink (UL) SBs. In addition, the apparatus is configured to send at least one of the following to a user equipment (UE): (1) a first indication of the time and frequency position of each DL or UL SB in a set of DL and UL SBs in the SBFD mode, or (2) a second indication of the second set of time and frequency resources associated with the HD mode.

[0010] In this aspect, the method includes configuring a time and frequency location for each time and frequency resource in a first set of time and frequency resources in a sub-band (SB) full-duplex (SBFD) mode associated with a SBFD mode and a second set of time and frequency resources associated with a half-duplex (HD) mode, wherein the first set of time and frequency resources includes a set of downlink (DL) and uplink (UL) SBs. In addition, the method includes sending, to a user equipment (UE), at least one of: (1) a first indication of a time and frequency location of each DL or UL SB in a set of DL and UL SBs in the SBFD mode, or (2) a second indication of a second set of time and frequency resources associated with the HD mode.

[0011] To achieve the aforementioned and related purposes, one or more aspects 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 exemplary features of one or more aspects. However, these features indicate only some of the various ways in which the principles of the various aspects can 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 according to various aspects of the present disclosure.

[0018] Figure 4 is a diagram illustrating an example of full-duplex (FD) wireless communication in a network according to various aspects of the present disclosure.

[0019] Figure 5 is a diagram illustrating an example of a subband (SB) FD (SBFD) configuration at a network node according to various aspects of the present disclosure.

[0020] Figure 6 is a call flow diagram for wireless communications in accordance with various aspects of the present disclosure.

[0021] Figure 7 is a diagram illustrating an example configuration structure for switching between SBFD mode and half-duplex (HD) mode according to various aspects of the present disclosure.

[0022] Figure 8 is a diagram illustrating an example configuration structure for switching between an SBFD mode and an HD mode according to various aspects of the present disclosure.

[0023] Fig. 9 is a diagram illustrating an example configuration for switching between an SBFD mode and an HD mode according to various aspects of the present disclosure.

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

[0025] Fig.11 is a flow chart of a method of wireless communication according to various aspects of the present disclosure.

[0026] Fig.12 is a flow chart of a method of wireless communication according to various aspects of the present disclosure.

[0027] Fig.13 is a flow chart of a method of wireless communication according to various aspects of the present disclosure.

[0028] Fig.14 are diagrams illustrating examples of hardware implementations for example apparatuses and / or network entities.

[0029] Fig.15is a diagram illustrating an example of a hardware implementation for an example network entity. DETAILED DESCRIPTION

[0030] Various aspects of the present invention relate to switching between subband (SB) full-duplex (FD) (SBFD) mode and half-duplex (HD) mode for different switching periodicities. 5G NR is designed to provide network-side duplexing through base stations, gNBs, etc., but does not include provisions to enable HD user equipment (UE) to utilize FD at the SB level. Additionally, network-side FD suffers from self-interference, as well as clutter from signal reflections that impairs signals in communication. Therefore, network-side FD is underutilized at both the network and UE sides of the communication. The described aspects provide the ability to switch a device (e.g., UE) to operate between SBFD mode or HD mode based on an indication of the time and frequency position of a SB in SBFD operation and the acquisition of time and frequency resources associated with the HD mode.

[0031] The specific embodiments described below in conjunction with the accompanying drawings are descriptions of various configurations and do not represent the only configurations in which the concepts described herein can be practiced. In order to provide a thorough understanding of the various concepts, the specific embodiments include specific details. However, these concepts can 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 apparatus and methods. These apparatus and methods are described in the following detailed description and illustrated in the accompanying drawings by various blocks, components, circuits, processes, algorithms, etc. (collectively referred to as "elements"). These elements may 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] As an 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 the present 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, executable files, threads of execution, processes, functions, or any combination thereof.

[0034] Thus, in one or more example aspects, specific implementations and / or use cases, the described functionality may be implemented in hardware, software, or any combination thereof. If implemented in software, the functionality may be stored or encoded as one or more instructions or codes on a computer-readable medium. Computer-readable media include computer storage media. Storage media may be any available media that can be accessed by a computer. As an 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 the 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 can be implemented across many different platform types, devices, systems, shapes, sizes and packaging arrangements. For example, various aspects, specific implementations and / or use cases can be generated via integrated chip specific 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 described examples may have a wide range of applicability. Various aspects, specific implementations and / or use cases can be in the range from chip-level or modular components to non-modular, non-chip-level specific implementations, and further to the range of aggregated, distributed or original equipment manufacturer (OEM) equipment or systems in conjunction with one or more technologies herein. In some actual settings, the equipment combined 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 various techniques described herein can be practiced in a wide variety of devices of various sizes, shapes, and configurations, chip-level components, systems, distributed arrangements, aggregated or disaggregated components, end-user devices, etc.

[0036] The deployment of a communication system (such as a 5G NR system) can be arranged with various components or constituent parts in a variety of ways. In a 5G NR system or network, a network node, a network entity, a mobility element of a network, a radio access network (RAN) node, a core network node, a network element or a 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 an aggregated or decomposed architecture. For example, a BS (such as a Node B (NB), an evolved NB (eNB), an NR BS, a 5G NB, an access point (AP), a transmit receive point (TRP) or a cell, etc.) can be implemented as an aggregated base station (also referred to as an independent BS or a monolithic BS) or a decomposed base station.

[0037] A converged base station may be configured to utilize a radio protocol stack physically or logically integrated within a single RAN node. A decomposed base station may be configured to utilize a protocol stack physically or logically distributed between two or more units, such as one or more central or centralized units (CUs), one or more distributed units (DUs), or one or more radio units (RUs). In some aspects, a CU may be implemented within a RAN node, and one or more DUs may be co-located with the CU, or alternatively, may be geographically or virtually distributed in one or more other RAN nodes. A DU may be implemented to communicate with one or more RUs. Each of a CU, a DU, and a RU may be implemented as a virtual unit, i.e., a virtual central unit (VCU), a virtual distributed unit (VDU), or a virtual radio unit (VRU).

[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 used in an integrated access backhaul (IAB) network, an open radio access network (O-RAN (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)). Decomposition 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. Individual 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 1 is a diagram 100 illustrating an example of a wireless communication system and an 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 that 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 CU 110 may communicate with one or more DUs 130 via corresponding midhaul links, such as an F1 interface. The DU 130 may communicate with one or more RUs 140 via corresponding fronthaul links. The RU 140 may communicate with corresponding UEs 104 via one or more radio frequency (RF) access links. In some implementations, a UE 104 may be served simultaneously by multiple RUs 140.

[0040] Each of the 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 send 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 a transmission medium. For example, these units may include a wired interface configured to receive signals or send 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 send signals to one or more of the other units via a wireless transmission medium.

[0041] In some aspects, 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), or service data adaptation protocol (SDAP), etc. Each control function may be implemented using an interface configured to communicate signals with other control functions hosted by CU 110. 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, 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, CU 110 may be implemented to communicate with DU 130 for network control and signal transmission.

[0042] 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, DU 130 may host one or more of a radio link control (RLC) layer, a medium access control (MAC) layer, and one or more high physical (PHY) layers (such as modules for forward error correction (FEC) encoding and decoding, scrambling, modulation and demodulation, etc.) at least in part according to a functional split such as those defined by 3GPP. In some aspects, DU 130 may further host one or more low PHY layers. Each layer (or module) may be implemented using an interface that is configured to communicate signals with other layers (and modules) hosted by DU 130 or with control functions hosted by CU 110.

[0043] The lower layer functionality may be implemented by one or more RUs 140. In some deployments, the RU 140 controlled by the DU 130 may correspond to a logical node that hosts RF processing functions or low PHY layer functions (such as performing Fast Fourier Transform (FFT), Inverse FFT (iFFT), digital beamforming or physical random access channel (PRACH) extraction and filtering, etc.), or both, based at least in part on functional splitting (such as lower layer functional splitting). In such an architecture, the RU 140 may be implemented to handle over-the-air (OTA) communications with one or more UEs 104. In some implementations, real-time and non-real-time aspects of communicating with the control plane and user plane of the RU 140 may be controlled by the corresponding DU 130. In some scenarios, this configuration may enable the implementation of the DU 130 and the CU 110 in a cloud-based RAN architecture (such as a vRAN architecture).

[0044] The SMO framework 105 may be configured to support RAN deployment and provisioning of non-virtualized network elements and virtualized network elements. For non-virtualized network elements, the SMO framework 105 may be configured to support the deployment of dedicated physical resources for RAN coverage requirements, which may be managed via an operation and maintenance interface (such as an O1 interface). For virtualized network elements, the SMO framework 105 may be configured to interact with a cloud computing platform (such as an 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 an 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 specific implementations, the SMO framework 105 may communicate with hardware aspects of the 4G RAN (such as an open eNB (O-eNB) 111) via the O1 interface. Additionally, in some specific implementations, the SMO framework 105 may 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 functions that enable 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 communicate with the near-RT RIC 125 (such as via an A1 interface). The near-RT RIC 125 may be configured to include logic functions that enable near-real-time control and optimization of RAN elements and resources via data collection and actions through an interface (such as via an E2 interface) that connects one or more CUs 110, one or more DUs 130, or both, and O-eNBs with the near-RT RIC 125.

[0046] In some implementations, in order to generate an AI / ML model to be deployed in the near-RT RIC 125, the non-RT RIC 115 may receive parameters or external enrichment information from an external server. Such information may be utilized by the near-RT RIC 125 and may be received from 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 of performance and employ AI / ML models to perform corrective actions through the SMO framework 105 (such as via reconfiguration of O1) or via creation of RAN management policies (such as A1 policies).

[0047] At least one of the CU 110, the DU 130, and the RU 140 may be referred to as a base station 102. Therefore, the base station 102 may include one or more of the CU 110, the DU 130, and the RU 140 (each component is indicated by a dotted line to indicate that each component may be included in the base station 102 or may not be included in the base station). 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 including 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 referred to as a closed subscriber group (CSG). The communication link between RU 140 and UE 104 may include uplink (UL) (also known as reverse link) transmission from UE 104 to RU 140 and / or downlink (DL) (also known as forward link) transmission from RU 140 to UE 104. The communication link may use multiple-input multiple-output (MIMO) antenna technology, including spatial multiplexing, beamforming and / or transmit diversity. The communication link may be through one or more carriers. For each carrier allocated in a carrier aggregation of up to Yx MHz (x component carriers) for transmission in each direction, the base station 102 / UE 104 may use a spectrum of up to Y MHz (e.g., 5MHz, 10MHz, 15MHz, 20MHz, 100MHz, 400MHz, etc.) bandwidth. These carriers may or may not be adjacent to each other. The allocation of carriers may be equivalent to DL and UL asymmetric (e.g., more or fewer carriers may be allocated to DL than 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 a device-to-device (D2D) communication link 158. The D2D communication link 158 may use DL / UL wireless wide area network (WWAN) spectrum. The D2D communication link 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). The D2D communication may be through a variety of 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, e.g., in a 5 GHz unlicensed spectrum, etc. When communicating in an unlicensed spectrum, the UE 104 / AP 150 may perform a clear channel assessment (CCA) prior to communication to determine whether a channel is available.

[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) that is 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 bands falling within FR3 can inherit FR1 characteristics and / or FR2 characteristics, and therefore the features of FR1 and / or FR2 can be effectively extended to mid-band frequencies. In addition, higher frequency bands are currently being explored to extend 5G NR operations 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] In view of the above, unless otherwise specified, if the term "6 GHz or less" 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. In addition, unless otherwise specified, if the term "millimeter wave" 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] The base station 102 and the UE 104 may each include multiple antennas (such as antenna elements, antenna panels, and / or antenna arrays) to facilitate beamforming. The base station 102 may send a beamformed signal 182 to the UE 104 in one or more transmit directions. The UE 104 may receive the beamformed signal from the base station 102 in one or more receive directions. The UE 104 may also send a beamformed signal 184 to the base station 102 in one or more transmit directions. The base station 102 may receive the beamformed signal from the UE 104 in one or more receive directions. The base station 102 / UE 104 may perform beam training to determine the best receive direction and transmit direction for each of the base station 102 / UE 104. The transmit direction and receive direction of the base station 102 may be the same or different. The transmit direction and receive direction of the UE 104 may be the same or different.

[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 transmit receive point (TRP), a network node, a network entity, a network equipment, or some other suitable term. The base station 102 may be implemented as an integrated access and backhaul (IAB) node, a relay node, a sidelink node, an aggregated (monolithic) base station with a baseband unit (BBU) (including a CU and a DU) and a RU, or as a decomposed base station including one or more of a CU, a DU, and / or a RU. A set of base stations that may include decomposed base stations and / or aggregated 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. AMF 161 is a control node that handles signaling between UE 104 and the core network 120. AMF 161 supports registration management, connection management, mobility management, and other functions. SMF 162 supports session management and other functions. UPF 163 supports packet routing, packet forwarding, and other functions. UDM 164 supports the generation of authentication and key agreement (AKA) credentials, user identity handling, access authorization, and subscription management. One or more location servers 168 are illustrated 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. GMLC 165 and LMF 166 support UE location services. GMLC 165 provides an interface for clients / applications (e.g., emergency services) to access UE positioning information. LMF 166 receives measurement and assistance information from NG-RAN and UE 104 via AMF 161 to calculate the location of UE 104. NG-RAN may determine the location of UE 104 using one or more positioning methods. Positioning UE 104 may involve signal measurements, positioning estimates, and optional speed calculations based on these measurements. Signal measurements may be performed by UE 104 and / or serving base station 102. The measured signals may be based on a satellite positioning system (SPS) 170 (e.g., one or more of a global navigation satellite system (GNSS), a global positioning system (GPS), a non-terrestrial network (NTN), or other satellite 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 one or more of other systems / signals / sensors.

[0056] Examples of UE 104 include cellular phones, smart phones, 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 computers, smart devices, wearable devices, vehicles, electric meters, gas pumps, large or small kitchen appliances, healthcare equipment, implants, sensors / actuators, displays, or any other similarly functional devices. Some of the UEs 104 may be referred to as IoT devices (e.g., parking meters, gas pumps, toasters, vehicles, heart monitors, etc.). UE 104 may also be referred to as stations, mobile stations, subscriber stations, mobile units, subscriber units, wireless units, remote units, mobile devices, wireless devices, wireless communication devices, remote devices, mobile subscriber stations, access terminals, mobile terminals, wireless terminals, remote terminals, mobile phones, user agents, mobile clients, clients, or some other suitable terminology. In some scenarios, the term UE may also be applied to one or more supporting 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 1 In certain aspects, the UE 104 may include a subband switching component 198 ("component 198") configured to operate in at least one of a downlink (DL) or uplink (UL) SBFD mode or a half-duplex (HD) mode associated with a subband (SB) full-duplex (SBFD) operation, wherein the SBFD operation is associated with a first set of time and frequency resources and the HD mode is associated with a second set of time and frequency resources, wherein the first set of time and frequency resources includes a set of DL and UL SBs. Component 198 is further configured to obtain at least one of: (1) a first indication of a time and frequency location of each DL or UL SB in the set of DL and UL SBs in the SBFD operation associated with the SBFD mode, or (2) a second indication of the second set of time and frequency resources associated with the HD mode. Additionally, component 198 is configured to switch to operating in the other of the SBFD mode or the HD mode based on at least one of the first indication or the second indication. In some aspects, where the time period of the SBFD mode or HD mode for non-periodic switching includes multiple symbols or a time duration, component 198 may be configured to wait for a time length corresponding to the guard band in response to the end of the time period, and switch back to operating in one of the SBFD mode or the HD mode after the wait.

[0058] In certain aspects, the base station 102 may include a subband switching component 199 ("component 199") configured to configure a time and frequency location for each SB in a set of DL and UL SBs in SBFD operation associated with the SBFD mode and a set of time and frequency resources associated with a half-duplex (HD) mode, and to send to the UE at least one of: (1) a first indication of the time and frequency location of each SB in a set of DL and UL SBs in SBFD operation associated with the SBFD mode, or (2) a second indication of the set of time and frequency resources associated with the HD mode. In some aspects, component 199 may be configured to configure at least one of: a scheduling offset for semi-persistent switching, a guard band for periodic switching, or a scheduling offset and a guard band for aperiodic switching. Although the following description may focus on 5G NR, the concepts described herein may be applicable to other similar fields, such as LTE, LTE-A, CDMA, GSM, and other wireless technologies.

[0059] 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 2D FIG280 is a diagram illustrating an example of UL channels within a 5G NR subframe. The 5G NR frame structure may be frequency division duplex (FDD), where 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), where 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 may be configured with any of the various available slot formats 0-61. Slot formats 0 and 1 are full DL and full UL, respectively. Other slot formats 2-61 include a mix of DL, UL and flexible symbols. The UE is configured with the slot format through the received slot format indicator (SFI) (dynamically configured through DL control information (DCI) or semi-statically / statically configured through radio resource control (RRC) signaling). Note that the following description also applies to the 5G NR frame structure as TDD.

[0060] FIG. 2A to FIG. 2D The frame structure is illustrated, and various aspects of the present disclosure may be applicable to other wireless communication technologies that may have different frame structures and / or different channels. A frame (10ms) may be divided into 10 subframes of equal size (1ms). Each subframe may include one or more time slots. A subframe may also include a microslot, 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 symbol on the DL may be a CP orthogonal frequency division multiplexing (OFDM) (CP-OFDM) symbol. The symbol on the UL may be a CP-OFDM symbol (for high throughput scenarios) or a discrete Fourier transform (DFT) extended OFDM (DFT-s-OFDM) symbol (also known as a single carrier frequency division multiple access (SC-FDMA) symbol) (for power-limited scenarios; limited to single-stream transmission). The number of slots in a subframe is based on the CP and the parameter set. The parameter set defines the subcarrier spacing (SCS) (see

[0061] Table 1). Symbol length / duration can be scaled with 1 / SCS.

[0062]

[0063]

[0064] Table 1: Parameter set, SCS and CP

[0065] 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 timeslots / 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. The symbol length / duration is inversely related to the subcarrier spacing. FIG. 2A to FIG. 2D An example of a parameter set μ=2 with a normal CP of 14 symbols per slot and 4 slots per subframe is provided. The slot duration is 0.25 ms, the subcarrier spacing is 60 kHz, and the symbol duration is about 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).

[0066] A resource grid may be used to represent the frame structure. Each slot includes a resource block (RB) (also referred to as a physical RB (PRB)) extending over 12 consecutive subcarriers. The resource grid is divided into a number of resource elements (REs). The number of bits carried by each RE depends on the modulation scheme.

[0067] 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 one particular 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).

[0068] Figure 2B Examples of various DL channels within a subframe of a frame are illustrated. A 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 including six RE groups (REGs), each REG including 12 consecutive REs in an OFDM symbol of an RB. A PDCCH within a BWP may be referred to as a control resource set (CORESET). The UE is configured to monitor PDCCH candidates in a PDCCH search space (e.g., a common search space, a UE-specific search space) during a PDCCH monitoring opportunity on a CORESET, wherein the PDCCH candidates have different DCI formats and different aggregation levels. Additional BWPs may be located at higher and / or lower frequencies on the channel bandwidth. A primary synchronization signal (PSS) may be within symbol 2 of a particular subframe of a frame. The PSS is used by UE 104 to determine subframe / symbol timing and physical layer identification. A secondary synchronization signal (SSS) may be within symbol 4 of a particular subframe of a frame. The SSS is used by the UE to determine the physical layer cell identity group number and the 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 referred to as an SS block (SSB)). The MIB provides the number of RBs in the system bandwidth and the system frame number (SFN). The physical downlink shared channel (PDSCH) carries user data, broadcast system information not sent via the PBCH (such as a system information block (SIB)), and paging messages.

[0069] like Figure 2C As illustrated, some of the REs carry DM-RS (indicated as R for a particular configuration, but other DM-RS configurations are possible) for channel estimation at the base station. The UE may send a DM-RS for a physical uplink control channel (PUCCH) and a DM-RS for a physical uplink shared channel (PUSCH). The PUSCH DM-RS may be sent in the first or first two symbols of the PUSCH. Depending on whether a short PUCCH or a long PUCCH is sent and depending on the specific PUCCH format used, the PUCCH DM-RS may be sent in different configurations. The UE may send a sounding reference signal (SRS). The SRS may be sent in the last symbol of a subframe. The SRS may have a comb structure, and the UE may send the SRS on one of the teeth of the comb. The SRS may be used by the base station for channel quality estimation to achieve frequency-dependent scheduling of the UL.

[0070] Figure 2D Examples 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 scheduling requests, channel quality indicators (CQI), precoding matrix indicators (PMI), rank indicators (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 be used to carry, among other things, a buffer status report (BSR), a power headroom report (PHR), and / or UCI.

[0071] Figure 3375. The Controller / Processor 375 is a block diagram of a base station 310 in an access network communicating with a UE 350. 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 (encryption, decryption, 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), re-segmentation 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.

[0072] 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 to 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), M-order quadrature amplitude modulation (M-QAM)). The coded and modulated symbols may then be separated into parallel streams. Each stream may then be mapped to an OFDM subcarrier, multiplexed with a reference signal (e.g., pilot) in the time and / or frequency domain, and then combined together 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. Channel estimates may be derived from reference signals and / or channel state feedback sent by the UE 350. Each spatial stream may then be provided to a different antenna 320 via a separate transmitter 318Tx. Each transmitter 318Tx may modulate a radio frequency (RF) carrier for transmission using a corresponding spatial stream.

[0073] At the UE 350, each receiver 354Rx receives a signal through 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 stream 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 and the reference signal are recovered and demodulated by determining the most likely signal constellation point sent 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 controller / processor 359, which implements layer 3 and layer 2 functionality.

[0074] 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 channels and logical channels, packet reassembly, decryption, header decompression, and control signal processing to recover IP packets. The controller / processor 359 is also responsible for error detection using ACK and / or NACK protocols to support HARQ operations.

[0075] 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.

[0076] Channel estimates derived by the channel estimator 358 based on a reference signal or feedback sent 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.

[0077] 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 respective antenna 320. Each receiver 318Rx recovers information modulated onto an RF carrier and provides the information to the RX processor 370.

[0078] 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 channels and logical channels, packet reassembly, decryption, header decompression, 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.

[0079] At least one of the TX processor 368, the RX processor 356, and the controller / processor 359 may be configured to perform operations related to Figure 1 At least one of the TX processor 316, the RX processor 370, and the controller / processor 375 may be configured to perform operations related to Figure 1 The sub-band switching component 199 combines various aspects.

[0080] Some types of wireless communications (e.g., 5G NR) may be designed to provide network-side duplexing through base stations, gNBs, etc., but may not include provisions to enable HD UEs to utilize FD at the SB level. Relatedly, network-side FD may suffer from self-interference, as well as clutter from signal reflections that corrupt the signals in the communication. Therefore, network-side FD may be underutilized at both the network and UE sides of the communication.

[0081] The aspects presented herein may provide enhancements to support duplex evolution of 5G NR TDD in unpaired spectrum. The aspects presented herein may include, but are not limited to, duplex enhancement on the network side (e.g., gNB side), HD operation on the UE side, and no restrictions on frequency range. These aspects may be applicable to duplex enhancement via deployment scenarios, methods, and to SB non-overlapping FD (generally speaking, SBFD in this article) and enhancements to dynamic / flexible TDD. The SBFD mode at the UE includes FD capabilities and performance associated with SBs within one or more given time slots. For example, a given time slot may be configured to include one or more UL SBs and / or DL ​​SBs, and each SB in the SB may be a BWP or an RB. SBFD operation may refer to processing, receiving, and / or sending these SBs in SBFD mode. The HD mode at the UE (which may also be referred to as a "legacy" mode) includes a single UL band or DL ​​band in a given time slot, and HD operation may refer to processing, receiving, and / or sending these UL and DL bands in the HD mode. Relatedly, HD to SBFD mode filter switching, or generally HD to SBFD filter switching, may be associated with its own latency for the UE and may be a switch between an HD mode of operation and an SBFD mode of operation, wherein the UE reconfigures or retunes parameters and / or analog receive filters for HD mode (e.g., one UL band or DL ​​band per time slot) and SBFD mode with one or more UL SBs and DL SBs in a given time slot (which may reduce or eliminate cross-link interference (CLI)).

[0082] With respect to non-overlapping SBFD and enhancements to dynamic / flexible TDD, aspects presented herein may consider schemes and their feasibility and performance characteristics, inter-gNB and inter-UE CLI handling, and solutions to manage CLI in configurations of non-overlapping SBFD, i.e., intra-subband CLI and inter-subband CLI, as well as the performance of the identified schemes and the impact on legacy operations in configurations of co-channel and adjacent channel coexistence. Aspects presented herein may also consider the feasibility of and impact on RF conditions considering adjacent channel coexistence with legacy operations, feasibility of and impact on RF conditions considering self-interference, inter-subband CLI, and inter-operator CLI at the gNB (as well as inter-subband CLI and inter-operator CLI at the UE, as well as feasibility aspects due to high impact in antenna / RF and algorithm design, including antenna isolation, TX intermodulation (IM) suppression in the RX portion, filtering, and digital interference suppression), and deployability of aspects herein related to, for example, duplex enhancements in TDD unpaired spectrum.

[0083] As discussed below, various aspects of the present invention relate to switching between SBFD mode and HD mode for different switching periodicities. Such aspects may enable a UE to provide its switching capabilities to a network node (e.g., a base station, a gNB, etc.), receive a configuration of a time / frequency position of a SB in SBFD operation or an indication of the time / frequency position, and switch to SBFD mode to perform operations, which increases the UL duty cycle (e.g., provides latency reduction, UL coverage improvement, etc.), enhances system capabilities, resource utilization, spectrum efficiency, etc., and enables flexible and dynamic UL / DL resource adaptation. Therefore, various aspects of the present invention may achieve these improvements by making the UE (e.g., HD UE) aware of the time and / or frequency position of the SB that the network node (e.g., gNB) will use for SBFD operation and enabling the UE to switch between the HD operation mode and the SBFD operation mode. The UE mode and / or operation may be performed according to periodic (P) switching, semi-persistent (SP) switching, and / or aperiodic (AP) switching.

[0084] Figure 4 400 is a diagram illustrating an example of full-duplex (FD) wireless communication in a network, illustrating various aspects. Diagram 400 includes a first configuration 402 and a second configuration 404. In the first configuration 402, a transmitter (Tx) and a receiver (Rx) of a network node (e.g., a BS, a gNB, etc.) are shown to transmit and receive communication signals. The transmitter (Tx) and the receiver (Rx) experience self-interference, such as from leakage signals, and the receiver (Rx) receives clutter (or echo) due to reflections of the signal from the transmitter (Tx) from a building. As described above, these problems impair the signal in the communication, for example, in the network-side FD mode.

[0085] These issues are further illustrated for FD mode on the network side in a second configuration 404. A network node (e.g., here a gNB) has a Tx antenna panel A for transmit / DL and an Rx antenna panel B for receive / UL. As shown, the gNB can be configured to perform DL multi-user (MU) MIMO between UE1 (HD UE) and UE2 (HD UE) and UL MU-MIMO between UE1 and UE2. However, in DL / UL MU-MIMO (or FD mode), panel A transmits (DL) to UE1 while panel B has an L channel that is simultaneously received from UE2, and this causes self-interference and clutter issues in wireless communication. Additionally, the HD UE itself is not able to utilize FD efficiency.

[0086] Figure 5 500 is a diagram illustrating an example of an SBFD configuration at a network node in various aspects. Diagram 500 includes an SB configuration 502 and a network node configuration 504. In the SB configuration 502, subband-based simultaneous Tx / Rx of DL / UL is shown by way of example. For example, in a time slot, there may be a first DL part, a UL part, and a second DL part on a component carrier / BW (but it should be noted that more or less of each part type may be included in various aspects, and / or there may be more UL parts than DL parts). As described above, the SBFD mode and SBFD operation at the UE include FD capabilities and performance associated with SBs within one or more given time slots, wherein the given time slot may include one or more UL SBs and / or DL ​​SBs, and each SB in the SB may be a BWP or an RB. That is, the SB configuration 502 illustrates SBFD at the network side, wherein different SBs within a component carrier (CC) or across CCs are used for DL ​​UE and UL UE signaling. For the illustrated configuration on one timeslot, the DL may communicate using two outer DL SBs and for the UL, the middle UL SB may be used for transmission. Referring to network node configuration 504, gNB 506 is shown as having a panel of Tx panel 508 that may communicate with UE1 on a DL channel and a panel of Rx panel 510 that may communicate with UE2 on a UL channel (where Tx panel 508 and Rx panel 510 are adjacent to each other on gNB 506). Network node configuration 504 thus illustrates an FD gNB with simultaneous Tx / Rx on the same timeslot.

[0087] According to various aspects of the present invention, such a configuration, for example, when utilized together with the UE-side aspects described below, provides improvements in communication system and device efficiency, signal quality, power utilization, etc. For example, but not limited to, the aspects presented herein can increase the UL duty cycle, thereby resulting in reduced latency (for example, DL signals can be received in UL-only time slots, which can achieve latency savings), as well as provide UL coverage improvements, enhance system capacity / resource utilization / spectral efficiency, achieve flexible and dynamic UL / DL resource adaptation based on UL / DL services in a robust manner, etc.

[0088] Figure 6 is a call flow diagram 600 for wireless communication in various aspects. The call flow diagram 600 illustrates switching between SBFD mode and HD mode for different periodicities.

[0089] In the illustrated aspect, the UE 602 sends an indication 606 of filter switching capabilities of the UE 602 to a network node (e.g., a gNB 604 or one or more components of the gNB) (also referred to herein as "gNB 604"). In various aspects, the indication 606 sent to the gNB 604 may be, but is not limited to, at least one of UE support for SBFD operation, UE support for TDD, UE support for HD to SBFD mode filter switching, type of HD to SBFD mode transmitter or receiver filter switching of the UE, and / or bandwidth part (BWP) switching delay of the UE. The UE 602 may operate (at 608) in at least one of a DL or UL SBFD mode or an HD mode associated with the SBFD operation. In one configuration, the SBFD operation may be associated with a first set of time and frequency resources, and in another configuration, the HD mode may be associated with a second set of time and frequency resources. In one configuration, the first set of time and frequency resources may include a set of DL and UL SBs. It should be noted that while the illustrated example shows the indication 606 sent to the gNB 604 before the UE operates in SBFD mode or HD mode (at 608), aspects presented herein also contemplate and include sending the indication 606 while the UE is operating in SBFD mode or HD mode (at 608).

[0090] The gNB 604 may configure (at 610) a time and frequency location for each of a first set of time and frequency resources in SBFD operation associated with the SBFD mode and a second set of time and frequency resources associated with the HD mode. In one configuration, the first set of time and frequency resources includes a set of DL and UL SBs. The gNB 604 may also configure (at 610) a scheduling offset and / or guard band (or "guard period") associated with the SBFD and / or HD operation. In some aspects, the configuration at 610 may be based on UE 602 capabilities, latency, etc. (e.g., indication 606). Additionally, it should be noted that while the illustrated examples show operation by the UE 602 in SBFD mode or HD mode at 608 as prior to configuration by the gNB 604 at 610, aspects of the present disclosure also contemplate and include that operation by the UE 602 at 608 and configuration by the gNB 604 at 610 may be concurrent / partially concurrent with respect to each other, either may precede the other, etc.

[0091] In one configuration, the gNB 604 may configure (at 610) each SB in the set of DL and UL SBs as a set of RBs within a corresponding BWP in a set of BWPs or a corresponding CC in a set of CCs. The gNB 604 may configure each SB in the set of DL and UL SBs as a set of RBs based on the UE's lack of support for HD to SBFD mode filter switching (e.g., according to indication 606). The gNB 604 may configure each SB in the set of DL and UL SBs as a set of RBs and associate an adjustable scheduling offset that may be greater than or equal to the SBDF filter adaptation delay of the UE 602. In one configuration, the gNB 604 may configure (at 610) each SB in the set of DL and UL SBs as a set of RBs for UE-specific configurations and / or cell-common configurations (e.g., common configurations for UEs served in a given cell associated with a network entity). In one configuration, the set of DL and UL SBs may include one or more DL SBs and at least one UL SB, and the set of BWPs may include one or more DL BWPs and one UL BWP. In this configuration, each of the one or more DL SBs may be configured as a corresponding DL BWP and a UL SB may be configured as a corresponding UL BWP, and the one or more DL BWPs may be active at a single time instance and the UL BWP may be active at a single time instance.

[0092] In one configuration, the gNB 604 may configure (at 610) each SB in the set of DL and UL SBs as a corresponding BWP in the set of BWPs. In some aspects, the corresponding BWP may be configured to include UL SBs and non-contiguous DL SBs and / or non-center UL SBs and non-center DL SBs. In some aspects, each SB in the set of DL and UL SBs may be configured as a corresponding BWP in the set of BWPs based on the UE's support for HD to SBFD mode filter switching (e.g., according to indication 606). In some aspects, each SB in the set of DL and UL SBs may be configured as a corresponding BWP in the set of BWPs and may be associated with an adjustable scheduling offset that may be less than the UE's BWP switching latency. In one configuration, the set of DL and UL SBs may include one or more DL SBs and at least one UL SB, and the set of BWPs may include one or more DL BWPs and one UL BWP. In this configuration, each DL SB of one or more DL SBs may be configured as a corresponding DL BWP, and a UL SB may be configured as a corresponding UL BWP, and the one or more DL BWPs may be active at a single time instance, and the UL BWP may be active at a single time instance. In one configuration, a set of DL and UL SBs may include one DL SB and one or more UL SBs, and a set of BWPs includes one DL BWP and one or more UL BWPs. In this configuration, a DL SB may be configured as a corresponding DL BWP, and each UL SB of one or more UL SBs may be configured as a corresponding UL BWP, and the DL BWP may be active at a single time instance, and the one or more UL BWPs may be active at a single time instance. In this configuration, one or more DL SBs may include two non-contiguous DL SBs, the two non-contiguous DL SBs may be configured as non-contiguous DL BWPs, and the non-contiguous DL BWPs may be active at a single time instance, and the corresponding UL BWP may be active at a single time instance. In one configuration, a set of DL and UL SBs may include one or more DL SBs and one UL SB, and the one or more DL SBs may be configured as a corresponding DL BWP, and the UL SB may be configured as a corresponding UL BWP. In this configuration, the corresponding DL BWP and the corresponding UL BWP may include the same center frequency. In one configuration, a set of DL and UL SBs may include one DL SB and one or more UL SBs, the DL SB may be configured as a corresponding DL BWP, and the one or more UL SBs may be configured as a corresponding UL BWP, and the corresponding DL BWP and the corresponding UL BWP may include the same center frequency.In this configuration, one or more UL SBs may include two non-contiguous UL SBs, the two non-contiguous UL SBs may be configured as a non-contiguous UL BWP, and the non-contiguous UL BWP may be active at a single time instance, and the corresponding DL BWP may be active at a single time instance.

[0093] In one configuration, if the UE supports HD to SBFD mode filter switching, each SB in the set of DL and UL SBs may be configured as a corresponding BWP in the set of BWPs. In one configuration, each SB in the set of DL and UL SBs may be configured as a corresponding BWP in the set of BWPs and may be associated with an adjustable scheduling offset that may be less than the BWP switching delay of the UE.

[0094] With respect to scheduling offsets and guard bands, the gNB 604 may configure (at 610) a scheduling offset and / or a guard band, wherein the scheduling offset may be associated with SP switching and AP switching, and wherein the guard band may be associated with P switching or AP switching. In some aspects, a filter switching capability of the UE 602 (an indication 606 of the filter switching capability may be sent to the gNB 604) may be associated with a scheduling offset for SP switching, a guard band for P switching, and / or a scheduling offset and a guard band for AP switching. The gNB 604 may configure (at 610) the scheduling offset based on signaling and configure it as a plurality of symbols or a time duration, the plurality of symbols having an SCS associated with the signaling. In some aspects, the signaling includes a DCI associated with the scheduled data, a first ACK for the DCI associated with the scheduled data, an UL transmission associated with the DCI associated with the scheduled data, and / or a second ACK for other DCI not associated with the scheduled data. In some aspects, a time period of the SBFD mode or the HD mode for AP switching may include a plurality of symbols and / or a time duration.

[0095] UE 602 may receive an indication 612 of a scheduling offset. In various aspects, indication 612 includes information related to the scheduling offset as an adjustable scheduling offset. For example, as described above, each SB in the set of DL and UL SBs may be configured as an RB set and associated with an adjustable scheduling offset that may be greater than or equal to an SBDF filter adaptation delay of UE 602, and each SB in the set of DL and UL SBs may be configured as a corresponding BWP in a set of BWPs and associated with an adjustable scheduling offset that may be less than a BWP switching delay of UE 602. In some aspects, indication 612 may be an indication configured by gNB 604 (at 610). In various aspects and configurations, the UE 602 may receive an indication 612 via an RRC message (e.g., in a BWP information element (IE) (such as a flag "1" or "0" regarding whether an adjustable offset exists), a configuration IE (e.g., of a serving cell), a DCI associated with scheduling data (e.g., a BWP switching DCI), and / or a MAC-CE. The indication 612 may be received by the UE 602 via a transmission from the gNB 604.

[0096] The UE 602 may obtain the indication 612, for example, after receiving the indication 614. In various aspects, the indication 614 may include a time and frequency location and / or a set of time and frequency resources configured by the gNB 604 (at 610). The UE 602 may obtain the indication 614 as (1) a first indication of a time and frequency location for each SB in a DL and UL SB set in an SBFD operation associated with the SBFD mode, and / or as (2) a second indication of a set of time and frequency resources associated with the HD mode. In one configuration, to obtain the indication 614, the UE 602 may receive via a transmission from the gNB 604.

[0097] UE 602 switches to operate in the other of SBFD mode or HD mode based on the first indication and / or the second indication in indication 614 at 616. The switching of UE 602 at 616 may be based on and / or in response to receiving indication 614. After the switching at 616, UE 602 may be configured to communicate with gNB 604 in accordance with the switched operating mode (not shown for clarity of illustration, but as will be understood by a person of ordinary skill in the relevant art having the benefit of the present disclosure). As described above, UE 602 may operate in one of SBFD mode or HD mode associated with SBFD operation (at 608). The switching at 616 may configure UE 602 to switch between these operating modes. In one configuration in which UE 602 operates in HD mode (at 608), the switching at 616 configures UE 602 to operate in SBFD mode. Conversely, in one configuration in which the UE 602 is operating in the SBFD mode (at 608), the switching at 616 configures the UE 602 to operate in the HD mode. In one configuration, the first indication and the second indication are included in a single received indication for a semi-static switching pattern that may specify repeated and / or alternating switching between the SBFD mode and the HD mode. For example, and not limitation, the semi-static switching pattern may specify a first number of symbols / timeslots in which to operate in the SBFD mode and a second number of symbols / timeslots in which to operate in the HD mode.

[0098] In various aspects, the switching at 616 may be based at least in part on P switching timing (which may be based on a predefined switching pattern or time period), SP switching timing (which may be based on activation / deactivation signaling such as from a network node (e.g., gNB 604)), and / or AP switching timing (which may be based on a symbol number, a time slot, a time period, etc.). Figure 7 , Figure 8 and Fig. 9 Provides further details on the SBFD mode and the HD mode.

[0099] At 618, the UE 602 switches back to operating in one of the SBFD mode or the HD mode after a time length corresponding to the guard band, where the time length may be responsive to the end of the time period. In various configurations, the timing for the P switch, the SP switch, and / or the AP switch may determine when the UE 602 switches back at 618. In various aspects, for the P switch, the switching latency may depend on the guard period, for the SP switch, the switching latency may depend on the scheduling offset, and for the AP switch, the switching latency may depend on the scheduling offset and the guard period for switching back after the time window. For example, in one configuration where the UE 602 switches from the HD mode to operating in the BFD mode at 616, the UE 602 switches back to the HD mode. In this example, the switch back at 618 may be performed by the UE 602 after the switching time / period of the SBFD mode operation expires (e.g., the end of the time period) and after the time length of the guard band is applied.

[0100] The following is as mentioned above Figure 6 Described in the context of Figure 7 . Figure 7 A diagram 700 of a configuration structure for switching between SBFD mode and HD mode in various aspects is shown. Diagram 700 includes a configuration structure 702 and a configuration structure 750. Configuration structure 702 illustrates a DL / UL SB as a set of RBs within an active BWP / CC, and configuration structure 750 illustrates a DL / UL SB BWP. As described with respect to various aspects herein, SBFD mode and SBFD operation at a UE include FD capabilities and performance associated with SBs within one or more given time slots, wherein a given time slot may include one or more UL SBs and / or DL ​​SBs, and each of the SBs may be a BWP or an RB. Furthermore, legacy HD mode and HD operation at a UE include a single UL band or DL ​​band in a given time slot. Configuration structure 702 and configuration structure 750 enable UEs that do not support HD to SBFD filter switching to achieve the benefits described herein without performing filter switching with a short switching latency via SB signaling, and enable UEs that support HD to SBFD filter switching to achieve the benefits described herein by performing filter switching via non-continuous DL BWP with the same switching latency as legacy / HD BWP switching.

[0101] In the configuration structure 702, the DL band 706 can be associated with the DL / UL BWP 704. In various aspects, the DL / UL BWP 704 can correspond to the HD (eg, legacy) mode of operation (eg, see Figure 6 Similarly, UL band 710 (a single band in a time slot) may correspond to an HD mode of operation (see, for example, Figure 6 718) and may be associated with DL / UL BWP 704. RB 714 may inversely correspond to an SBFD mode of operation (eg, see Figure 6 708 and UL BWP 704). In various aspects, RB 714 may be a set of RBs. That is, each SB (DL SB 708 and UL SB 712; multiple SBs in a given time slot) may be configured as a set of RBs (e.g., RB 714) within a BWP / CC (shown by way of example as DL / UL BWP 704) (see, e.g., Figure 6 614 in the configuration structure 702). The HD mode and SBFD mode signaling is shown in the configuration structure 702 as being associated with an application scheduling offset 716 (e.g., based on the Figure 6 The UE 602 may be associated with an indication 612 of a scheduling offset received by the UE 602 for an offset implemented by signaling in the configuration structure 702. In some aspects, the signaling in the configuration structure 702 may be cell-common or UE-specific for such SB configuration.

[0102] The UE may be configured based on its capabilities (e.g., Figure 6 In various aspects, the configuration structure 702 can be used, for example, by the UE 602 based on the UE not supporting HD to SBFD filter switching (e.g., for Figure 6 In such cases, if the UE does not expect to receive a discontinuous DL BWP configuration or switch, the configuration structure 702 does not specify a DL BWP configuration or switch, and thus, the operation of the UE is unimpeded to achieve the benefits of SBFD via RB714 herein.

[0103] As mentioned above Figure 6 As described, for various configuration aspects, each SB in a set of DL and UL SBs as RBs may be set for UE-specific configuration and / or cell-common configuration (eg, a common configuration for UEs served in a given cell associated with a network entity).

[0104] In the configuration structure 750, the DL band 758 and / or the UL band 764 may be associated with the DL / UL BWP2 752 and may correspond to an HD (e.g., legacy) mode of operation. As shown, the DL / UL SB BWP may include a plurality of DL SBs 760 associated with the DL BWP1 756 and a plurality of UL SBs 762 associated with the UL BWP1 754. That is, in aspects with respect to the illustrated configuration, each SB (DL SB 760 and UL SB 762) may be configured as a BWP (see, e.g., Figure 6 614 in the figure). Various aspects of the present disclosure contemplate and / or take into account multiple BWP configurations (e.g., TDD, SBFD), BWP switching delays (due to baseband parameter retuning), etc. Additionally, non-center UL / DL BWPs (e.g., DL SB 760 and UL SB 762 are closer to one of DL band 758 or UL band 764), non-contiguous DL BWPs (e.g., as shown in the figure), etc. are also contemplated. HD mode and SBFD mode signaling are shown in the configuration structure 750 as being consistent with the ability to apply a scheduling offset 768 (e.g., based on the Figure 6 The scheduling offset 768 may be associated with a switching latency of a BWP switching 766 implemented by signaling in the configuration structure 750, for example, an indication 612 of a scheduling offset received by the UE 602. In one configuration, the scheduling offset 768 may correspond to a switching latency of the BWP switching 766.

[0105] It can also be based on UE capabilities (e.g., as determined by Figure 6 In various aspects, the configuration structure 750 may be used, for example, by the UE 602 based on the UE supporting HD to SBFD filter switching (e.g., for Figure 6 616 in ). For SP switching, SB signaling (e.g., via DCI) may have a fixed scheduling offset having an offset that is less than the SBFD filter adaptation delay. Therefore, if the UE does not expect to receive SB signaling, the configuration structure 752 does not specify SB signaling as in the legacy HD mode. For P switching, SB signaling may have a predefined guard band between the HD mode of operation and the SBFD mode of operation, wherein the guard band duration is less than the SBFD filter adaptation delay. Therefore, if the UE does not expect to receive SB signaling, the configuration structure 752 does not specify SB signaling as in the legacy HD mode. In addition, for AP switching (which may be configured with a time window (e.g., Nms or K time slots, etc.) for applying the SB configuration to the SBFD mode of operation), the scheduling offset may be utilized to decode the DCI for the AP switching plus the HD to SBFD filter switching delay. In addition, the guard band may be utilized, for example, to switch back from SBFD to HD after the time window. Thus, if the UE does not expect to receive SB signaling, the configuration structure 752 does not specify SB signaling as in the legacy HD mode.Based on the above, the operation of the UE is unimpeded to achieve the benefits of SBFD via DL SB 760 and UL SB 762 herein.

[0106] For non-limiting illustrative purposes, configuration structure 702 and configuration structure 750 illustrate example configurations for DL / UL / DL (also referred to as "D / U / D") SBs. In other configurations, alternative ordering and number of SBs may be implemented. For example, in one configuration, Figure 7 Configuration structure 797 is shown. In configuration structure 797, a UL / DL / UL configuration (also referred to as "U / D / U") is provided by way of example with reference to two UL SBs 762 corresponding to UL BWP 756 and one DL SB 760 corresponding to DL BWP 754. In one configuration, the Figure 7 In the configuration structure 798, a DL / UL configuration (also referred to as "D / U") is provided by way of example with reference to one UL SB in the UL SB 762 corresponding to the UL BWP 756 and one DL SB in the DL SB 760 corresponding to the DL BWP 754. In one configuration, the UL / UL configuration (also referred to as "D / U") is implemented. Figure 7 Configuration structure 799 is shown. In configuration structure 799, UL / DL configuration (also referred to as "U / D") is provided by way of example with reference to one UL SB in UL SB 762 corresponding to UL BWP 756 and one DL SB in DL SB 760 corresponding to DLBWP 754. In other words, the configuration for SBs according to aspects of the present disclosure may vary in order and number.

[0107] The following is as mentioned above Figure 6 and Figure 7 Described in the context of Figure 8 . Figure 8 A diagram 800 is shown of a configuration structure for switching between SBFD mode and HD mode in various aspects. Diagram 800 may be Figure 7 Another aspect of the configuration structure 702 in FIG. 8 , namely the illustrated configuration structure in diagram 800 illustrates an extension of the configuration structure 702 for DL / UL SBs as RB sets within an active BWP / CC.

[0108] Diagram 800 shows DL band 706 and UL band 710 corresponding to DL / UL BWP 704, and RB 714 as described above (eg, including Figure 7 The extension for the configuration structure 702 illustrated in diagram 800 includes an adjustable scheduling offset 802, which may be a received DL SB 708 and a UL SB 712. Figure 66. For example, the configuration structure of diagram 800 may differ from configuration structure 702 in at least one aspect that the SBFD portion represented by RB 714 is not immediately after the HD mode portion represented by DL band 706 and is not immediately before the HD mode portion represented by UL band 710. Rather, aspects of the configuration structure shown in diagram 800 provide an adjustable scheduling offset 802 between the HD mode portion and the SBFD mode portion, which enables a UE (e.g., Figure 6 The UE 602 in FIG. 7 is capable of supporting SB signaling as shown in the configuration structure 702, regardless of whether the UE supports filter adaptation 804 (eg, SBDF filter adaptation).

[0109] The filter adaptation 804 illustrated in the diagram 800 represents the filter adaptation delay expected by a UE supporting HD to SBFD filter switching. That is, when supporting such filter switching compared to the utilization of the configuration structure 702, the UE expects an offset that is not less than (e.g., greater than or equal to) the SBFD filter adaptation delay. Therefore, the adjustable scheduling offset 802 may be no less than the SBFD filter adaptation delay used for SB signaling (e.g., via DCI). In short, the adjustable scheduling offset 802 may provide a longer offset to indicate the HD to SBFD filter change to the UE.

[0110] The following is as mentioned above Figure 6 and Figure 7 Described in the context of Fig. 9 . Fig. 9 A diagram 900 is shown of a configuration structure for switching between SBFD mode and HD mode in various aspects. Diagram 900 may be Figure 7 Another aspect of the configuration structure 750 in FIG. 9 , namely the illustrated configuration structure in diagram 900 illustrates an extension of the configuration structure 750 for DL / UL SB BWP.

[0111] Diagram 900 shows the DL band 758 and UL band 764 corresponding to the DL / UL BWP2 752, and the Figure 7 DL SB 760 and UL SB 762 (of configuration structure 750) in FIG. 900 illustrates an extension for configuration structure 750 including an adjustable scheduling offset 902, which may be a received Figure 66. For example, the configuration structure of diagram 900 may differ from configuration structure 750 in at least one aspect in which the SBFD portion represented by DL SB 760 and UL SB 762 is not after the HD mode portion represented by DL band 758 by an offset corresponding to the switching delay of BWP switching 766, and is not before the HD mode portion represented by UL band 764 by the offset. Instead, aspects of the configuration structure shown in diagram 900 provide an adjustable scheduling offset 902 between the HD mode portion and the SBFD mode portion, which enables a UE (e.g., Figure 6 The UE 602 in FIG. 6A is capable of supporting SB signaling with non-contiguous DL BWP as shown in the configuration structure 750, regardless of whether the UE supports SBDF filter adaptation.

[0112] The BWP switching 766 illustrated in diagram 900 indicates that a scheduling offset 768 may be applied to the BWP switching 766. Figure 7 766 is implemented by signaling in the configuration structure 750 in FIG. That is, when BWP switching 766 is not supported by the UE, the UE expects an offset that is less than the legacy BWP switching delay / offset (e.g., 1 ms) compared to utilization of the configuration structure 752. Thus, the adjustable scheduling offset 902 may be less than the legacy BWP switching delay associated with BWP switching 766 for SB signaling (e.g., via DCI). In short, the adjustable scheduling offset 902 may provide a shorter offset to indicate to the UE that there is no filter switching and is approximately equal to or similar to Figure 7 A scheduling offset 716 in (which may be relatively very small, eg, close to 0 (zero)).

[0113] As mentioned above about Figure 6 As described, in various aspects and various configurations, the UE 602 may receive the indication 612 via an RRC message, a configuration IE, a DCI associated with the scheduled data, and / or a MAC-CE. The extension of the configuration structure 750 shown in the diagram 900 via the adjustable scheduling offset 902 may include various configurations for defining the adjustable scheduling offset 902. For example, but not limited to, the adjustable scheduling offset 902 may be defined as a number N symbols (with an SCS associated with the signaling) or K s / ms / etc. (time units) based on signaling, where the signaling may be a DCI associated with the scheduled data, a first ACK for the DCI associated with the scheduled data, an UL transmission associated with the DCI associated with the scheduled data, and / or a second ACK for other DCI not associated with the scheduled data. In the configuration using symbols, as described above, the SCS may be based at least in part on the SCS of the DCI, the ACK, the applied DL / UL BWP SCS, etc.

[0114] Fig.101000 is a flow chart of a method of wireless communication according to various aspects of the present disclosure. The method may be performed by a UE (e.g., UE 104, 602; device 1404). At 1002, the UE operates in at least one of a DL or UL SBFD mode associated with SB full-duplex (SBFD) operation or an HD mode, wherein the SBFD operation is associated with a first set of time and frequency resources, and the HD mode is associated with a second set of time and frequency resources, and wherein the first set of time and frequency resources includes a set of DL and UL SBs. In some aspects, 1002 may be performed by component 198. Additionally, at 1004, the UE obtains at least one of: (1) a first indication of a time and frequency position of each DL or UL SB in the set of DL and UL SBs in the SBFD operation associated with the SBFD mode, or (2) a second indication of the second set of time and frequency resources associated with the HD mode. In some aspects, 1004 may be performed by component 198. Additionally, at 1006, the UE switches to operate in the other of the SBFD mode or the HD mode based on at least one of the first indication or the second indication. In some aspects, 1006 may be performed by component 198. For example, referring to Figure 6 UE 602 may operate in SBFD mode or HD mode (at 608). HD mode may include legacy signaling or bands (e.g., Figure 7 , Figure 8 , Fig. 9 DL bands 706, 758 and UL bands 710, 764 are shown. In addition, UE 602 may obtain an indication 614, for example from gNB 604, which includes an indication of SBFD operation associated with the SBFD mode ( Figure 7 702, 750; Figure 8 800; Fig. 9 900) in DL and UL SB (e.g., Figure 7 , Figure 8 , Fig. 9 The UE 602 may include a first indication of a time and frequency location of each DL or UL SB in a set of RBs 714, DL SBs 760, and UL SBs 762 (shown in FIG. 1 ), and / or may include a second indication of a second set of time and frequency resources associated with the HD mode. Additionally, the UE 602 may switch (616) to operate in the other of the SBFD mode or the HD mode in which the UE 602 is operating (at 608) based on the indication for the SBFD mode or the indication for the HD mode.

[0115] Fig.111100 is a flow chart of a method of wireless communication according to various aspects of the present disclosure. The method may be performed by a UE (e.g., UE 104, 602; device 1404). At 1102, the UE sends an indication of the UE's filter switching capability to a network node before at least one of a first indication or a second indication is obtained, regarding at least one of: the UE's support for SBFD operation, the UE's support for at least one of HD to SBFD mode transmitter or receiver filter switching, at least one of the types of HD to SBFD mode transmitter or receiver filter switching of the UE, or a BWP switching delay of the UE, at least one of the first indication or the second indication being based on at least a portion of the indication of the UE's filter switching capability. For example, with reference to Figure 6 , UE 602 may send an indication 606 to gNB 604. Indication 606 may include UE 602 support for TDD and / or UE support for SBFD operation, UE support for at least one of HD to SBFD mode transmitter or receiver filter switching, at least one of the type of HD to SBFD mode transmitter or receiver filter switching of the UE, or BWP switching delay of UE 602 (e.g., Figure 7 , Fig. 9 BWP switching 766), and / or delays in operating modes, switching, tuning, etc. (e.g., Figure 7 The scheduling offsets 716, 768; Figure 8 804). The first indication and / or the second indication may be based on at least a portion of the indication 606 of the filter switching capability of the UE 602. In some aspects, 1102 may be performed by the component 198.

[0116] At 1104, the UE operates in at least one of a DL or UL SBFD mode or an HD mode associated with SBFD operation, wherein the SBFD operation is associated with a first set of time and frequency resources and the HD mode is associated with a second set of time and frequency resources, and wherein the first set of time and frequency resources includes a set of DL and UL SBs. For example, referring to Figure 6 UE 602 may operate in SBFD mode or HD mode (at 608). HD mode may include legacy signaling or bands (e.g., Figure 7 , Figure 8 , Fig. 9 DL bands 706, 758 and UL bands 710, 764 are shown. In addition, UE 602 may obtain an indication 614, for example from gNB 604, which includes an indication of SBFD operation associated with the SBFD mode ( Figure 7 702, 750; Figure 8 800; Fig. 9900) in DL and UL SB (e.g., Figure 7 , Figure 8 , Fig. 9 1104 may include a first indication of a time and frequency location of each DL or UL SB in a set of RBs 714, DL SBs 760, and UL SBs 762 as shown, and / or may include a second indication of a second set of time and frequency resources associated with the HD mode. Additionally, the UE 602 may switch (616) to operate in the other of the SBFD mode or the HD mode in which the UE 602 is operating (at 608) based on the indication for the SBFD mode or the indication for the HD mode. In some aspects, 1104 may be performed by component 198.

[0117] At 1106, the UE receives an indication of a scheduling offset via at least one of an RRC message, a configuration IE, DL control information DCI associated with the scheduling data, or a MAC-CE. Figure 6 , the UE 602 may receive an indication 612 of a scheduling offset. In one configuration, the scheduling offset may be Figure 7 The scheduling offset 716, 768. In one configuration, the scheduling offset may be an adjustable scheduling offset, such as Figure 8 The adjustable scheduling offset 802 and / or Fig. 9 The scheduling offset of the indication (612) may be based on or may take into account latency and / or switching support of the UE 602. In various aspects, the UE 602 may receive the indication 612 with the scheduling offset from the gNB 604 via an RRC message, a configuration IE, DL control information DCI associated with scheduling data, or a MAC-CE. In some aspects, 1106 may be performed by component 198.

[0118] At 1108, the UE obtains at least one of: (1) a first indication of a time and frequency location of each DL or UL SB in a set of DL and UL SBs in SBFD operation associated with the SBFD mode, or (2) a second indication of a second set of time and frequency resources associated with the HD mode. Figure 6 , the UE 602 may obtain an indication 614, for example, from the gNB 604, the indication including an indication of an SBFD operation associated with the SBFD mode ( Figure 7 702, 750; Figure 8 800; Fig. 9 900) in DL and UL SB (e.g., Figure 7 , Figure 8 , Fig. 91108 may include a first indication of a time and frequency location of each DL or UL SB in a set of RBs 714, DL SBs 760, and UL SBs 762 as shown, and / or may include a second indication of a second set of time and frequency resources associated with the HD mode. In some aspects, 1108 may be performed by component 198.

[0119] At 1110, the UE switches to operate in the other of the SBFD mode or the HD mode based on at least one of the first indication or the second indication. Figure 6 , the UE 602 may switch (616) to operate in the other of the SBFD mode or the HD mode in which the UE 602 is operating (at 608) based on the indication for the SBFD mode or the indication for the HD mode. For operating in the SBFD mode or the HD mode, the UE 602 may utilize the indication of the scheduling offset 612 to be aware of the specific mode. In addition, the UE 602 may utilize P / SP / AP switching for the operating mode. Reference Figure 7 For configurations utilizing P switching SP switching, SB signaling (e.g., via DCI) may have a fixed scheduling offset having an offset less than the SBFD filter adaptation delay. Therefore, if the UE is not expected to receive SB signaling, the configuration structure 752 does not specify SB signaling as in the legacy HD mode. For configurations utilizing P switching P switching, SB signaling may have a predefined guard band between the HD mode of operation and the SBFD mode of operation, wherein the guard band duration is less than the SBFD filter adaptation delay. Therefore, if the UE is not expected to receive SB signaling, the configuration structure 752 does not specify SB signaling as in the legacy HD mode. In addition, for configurations utilizing P switching AP switching (which may be configured with a time window (e.g., Nms or K time slots, etc.) for applying the SB configuration to the SBFD mode of operation), the scheduling offset may be used to decode the DCI for AP switching plus the HD to SBFD filter switching delay. In addition, the guard band may be used, for example, to switch back from SBFD to HD after the time window. Thus, if the UE does not expect to receive SB signaling, the configuration structure 752 does not specify SB signaling as in the legacy HD mode. In some aspects, 1110 may be performed by component 198 .

[0120] At 1112, the UE switches back to operating in one of the SBFD mode or the HD mode after a time length corresponding to the guard band, wherein the time length is responsive to the end of the time period. Figure 6, UE 602 may switch back at 618 to the mode in which it was operating (at 608) prior to the switch at 616. For operation in either SBFD mode or HD mode, UE 602 may utilize indication 612 of scheduling offset to be aware of the specific mode and may utilize P / SP / AP switching for the operating mode. Figure 7 For configurations utilizing SP switching, SB signaling (e.g., via DCI) may have a fixed scheduling offset having an offset less than the SBFD filter adaptation delay. Therefore, if the UE is not expected to receive SB signaling, the configuration structure 752 does not specify SB signaling as in the legacy HD mode. For configurations utilizing P switching, SB signaling may have a predefined guard band between the HD mode of operation and the SBFD mode of operation, wherein the guard band duration is less than the SBFD filter adaptation delay. Therefore, if the UE is not expected to receive SB signaling, the configuration structure 752 does not specify SB signaling as in the legacy HD mode. In addition, for configurations utilizing P switching AP switching (which may be configured with a time window (e.g., Nms or K time slots, etc.) for applying the SB configuration to the SBFD mode of operation), the scheduling offset may be utilized to decode the DCI for AP switching plus the HD to SBFD filter switching delay. In addition, the guard band may be utilized, for example, to switch back from SBFD to HD after the time window. Thus, if the UE does not expect to receive SB signaling, the configuration structure 752 does not specify SB signaling as in the legacy HD mode. In some aspects, 1112 may be performed by component 198.

[0121] Fig.12 1200 is a flow chart of a method of wireless communication according to various aspects of the present disclosure. The method may be performed by a base station or other network entity (e.g., base station 102; gNB 604; network entity 1502). At 1202, the network entity configures a time and frequency location for each time and frequency resource in a first set of time and frequency resources in SBFD operation associated with an SBFD mode and a second set of time and frequency resources associated with an HD mode, wherein the first set of time and frequency resources includes a set of DL and UL SBs. For example, referring to Figure 6 , gNB 604 may configure (610) a time and frequency location for each SB in a set of DL and UL SBs in SBFD operation associated with the SBFD mode and a set of time and frequency resources associated with the HD mode. The first set of time and frequency resources may include a set of DL and UL SBs. Additionally, in some aspects, gNB 604 may configure (610) a scheduling offset and / or guard band (e.g., based on UE 602 capabilities, latency, etc.). In some aspects, 1202 may be performed by component 199.

[0122] At 1204, the network entity sends, for the UE, at least one of: (1) a first indication of a time and frequency location of each DL or UL SB in a set of DL and UL SBs in SBFD operation associated with the SBFD mode, or (2) a second indication of a second set of time and frequency resources associated with the HD mode. Figure 6 , the gNB 604 may, for example, send an indication 614 to the UE 602, which may include instructions for the SBFD mode at the UE 602 regarding the SBFD operation associated with the SBFD mode ( Figure 7 702, 750; Figure 8 800; Fig. 9 900) in DL and UL SB (e.g., Figure 7 , Figure 8 , Fig. 9 RB 714, DL SB 760, and UL SB 762 (shown), or may include information about the time and frequency resources (e.g., as shown in FIG. 1 ) for HD mode at UE 602. Figure 7 , Figure 8 , Fig. 9 In some aspects, 1204 may be performed by component 199.

[0123] Fig.13 1300 is a flowchart of a method of wireless communication according to various aspects of the present disclosure. The method may be performed by a base station or other network entity (e.g., base station 102; gNB 604; network entity 1502). At 1302, the network entity receives, from the UE, before the time and frequency locations are configured, an indication of a filter switching capability of the UE regarding at least one of: the UE's support for SBFD operation, the UE's support for at least one of HD to SBFD mode transmitter or receiver filter switching, at least one of a type of HD to SBFD mode transmitter or receiver filter switching of the UE, or a BWP switching delay of the UE, at least one of the first indication or the second indication being based on at least a portion of the indication of the filter switching capability of the UE. For example, with reference to Figure 6 , the gNB 604 may receive an indication 606 from the UE 602. The indication 606 may include the UE 602's support for TDD and / or the UE's support for SBFD operation, the UE's support for at least one of HD to SBFD mode transmitter or receiver filter switching, at least one of the type of HD to SBFD mode transmitter or receiver filter switching of the UE, or a BWP switching delay of the UE 602 (e.g., Figure 7 , Fig. 9BWP switching 766), and / or delays in operating modes, switching, tuning, etc. (e.g., Figure 7 The scheduling offsets 716, 768; Figure 8 804). The first indication and / or the second indication may be based on at least a portion of the indication 606 of the filter switching capability of the UE 602. In some aspects, 1302 may be performed by component 199.

[0124] At 1304, the network entity configures at least one of: a scheduling offset, or a guard band, wherein the scheduling offset is associated with SP switching and AP switching, and wherein the guard band is associated with P switching or AP switching, and wherein the filter switching capability of the UE is associated with at least one of: a scheduling offset for SP switching, a guard band for P switching, or a scheduling offset and a guard band for AP switching. For example, referring to Figure 6 , the gNB 604 may configure the scheduling offset at 610. In one configuration, the scheduling offset may be configured as Figure 7 The scheduling offset 716, 768. In one configuration, the scheduling offset may be configured as an adjustable scheduling offset, such as Figure 8 The adjustable scheduling offset 802 and / or Fig. 9 902, and in various aspects, the filter switching capabilities can be based on these offsets. The scheduling offsets configured at 610 can be based on or can take into account the latency and / or switching support of UE 602, such as those received via indication 606 at 1302. In some aspects, 1304 can be performed by component 199.

[0125] At 1306, the network entity sends an indication of the scheduling offset via at least one of an RRC message, a configuration IE, DL control information DCI associated with the scheduling data, or a MAC-CE. Figure 6 , the gNB 604 may send an indication 612 of the scheduling offset. In one configuration, the scheduling offset may be Figure 7 The scheduling offset 716, 768. In one configuration, the scheduling offset may be an adjustable scheduling offset, such as Figure 8 The adjustable scheduling offset 802 and / or Fig. 9 The scheduling offset of the indication (612) may be based on or may take into account the latency of the UE 602. In various aspects, the gNB 604 may send the indication 612 with the scheduling offset to the UE 602 via an RRC message, a configuration IE, DL control information DCI associated with the scheduling data, or a MAC-CE. In some aspects, 1306 may be performed by component 199.

[0126] At 1308, the network entity configures a time and frequency location for each time and frequency resource in a first set of time and frequency resources in SBFD operation associated with the SBFD mode and a second set of time and frequency resources associated with the HD mode, wherein the first set of time and frequency resources includes a set of DL and UL SBs. Figure 6 , gNB 604 may configure (610) a time and frequency location for each SB in a set of DL and UL SBs in SBFD operation associated with the SBFD mode and a set of time and frequency resources associated with the HD mode. The first set of time and frequency resources may include a set of DL and UL SBs. In some aspects, 1308 may be performed by component 199.

[0127] At 1310, the network entity sends, for the UE, at least one of: (1) a first indication of a time and frequency location of each DL or UL SB in a set of DL and UL SBs in SBFD operation associated with the SBFD mode, or (2) a second indication of a second set of time and frequency resources associated with the HD mode. Figure 6 , the gNB 604 may, for example, send an indication 614 to the UE 602, which may include instructions for the SBFD mode at the UE 602 regarding the SBFD operation associated with the SBFD mode ( Figure 7 702, 750; Figure 8 800; Fig. 9 900) in DL and UL SB (e.g., Figure 7 , Figure 8 , Fig. 9 RB 714, DL SB 760, and UL SB 762 (shown), or may include information about the time and frequency resources (e.g., as shown in FIG. 1 ) for HD mode at UE 602. Figure 7 , Figure 8 , Fig. 9 In some aspects, 1310 may be performed by component 199.

[0128] Fig.141400 is a diagram illustrating an example of a hardware implementation for an apparatus 1404. The apparatus 1404 may be a UE, a component of a UE, or may implement UE functionality. In some aspects, the apparatus 1404 may include a cellular baseband processor 1424 (also referred to as a modem) coupled to one or more transceivers 1422 (e.g., a cellular RF transceiver). The cellular baseband processor 1424 may include on-chip memory 1424'. In some aspects, the apparatus 1404 may also include one or more subscriber identity module (SIM) cards 1420 and an application processor 1406 coupled to a secure digital (SD) card 1408 and a screen 1410. The application processor 1406 may include on-chip memory 1406'. In some aspects, the device 1404 may also include a Bluetooth module 1412, a WLAN module 1414, an SPS module 1416 (e.g., a GNSS module), one or more sensor modules 1418 (e.g., an atmospheric 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 1426, a power source 1430, and / or a camera 1432. The Bluetooth module 1412, the WLAN module 1414, and the SPS module 1416 may include an on-chip transceiver (TRX) (or in some cases, only a receiver (RX)). The Bluetooth module 1412, the WLAN module 1414, and the SPS module 1416 may include their own dedicated antennas and / or communicate using an antenna 1480. The cellular baseband processor 1424 communicates with the UE 104 and / or with the RU associated with the network entity 1402 through the transceiver 1422 via one or more antennas 1480. The cellular baseband processor 1424 and the application processor 1406 may each include a computer-readable medium / memory 1424', 1406', respectively. The additional memory module 1426 may also be considered as a computer-readable medium / memory. Each computer-readable medium / memory 1424', 1406', 1426 may be non-transitory. The cellular baseband processor 1424 and the application processor 1406 are each responsible for general processing, including executing software stored on a computer-readable medium / memory. The software, when executed by the cellular baseband processor 1424 / application processor 1406, enables the cellular baseband processor 1424 / application processor 1406 to perform the various functions described above. The computer-readable medium / memory may also be used to store data manipulated by the cellular baseband processor 1424 / application processor 1406 when executing the software.The cellular baseband processor 1424 / application processor 1406 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 1404 may be a processor chip (modem and / or application) and include only the cellular baseband processor 1424 and / or the application processor 1406, and in another configuration, the device 1404 may be the entire UE (e.g., see. Figure 3 350) and includes additional modules of device 1404.

[0129] As discussed above, component 198 is configured to operate in at least one of a DL or UL SBFD mode or an HD mode associated with SB full-duplex (SBFD) operation, wherein the SBFD operation is associated with a first set of time and frequency resources and the HD mode is associated with a second set of time and frequency resources, and wherein the first set of time and frequency resources includes a set of DL and UL SBs. Component 198 is further configured to obtain at least one of: (1) a first indication of a time and frequency location of each DL or UL SB in the set of DL and UL SBs in the SBFD operation associated with the SBFD mode, or (2) a second indication of the second set of time and frequency resources associated with the HD mode. Component 198 is further configured to switch to operating in the other of the SBFD mode or the HD mode based on at least one of the first indication or the second indication. Component 198 may be configured to send an indication of the UE's filter switching capability to the network node regarding at least one of: the UE's support for SBFD operation, the UE's support for at least one of HD to SBFD mode transmitter or receiver filter switching, at least one of the types of HD to SBFD mode transmitter or receiver filter switching of the UE, or a BWP switching delay of the UE before at least one of the first indication or the second indication is obtained, at least one of the first indication or the second indication being based on at least a portion of the indication of the UE's filter switching capability. Component 198 may be configured to receive the indication of the scheduling offset via at least one of a radio resource control (RRC) message, a configuration information element (IE), DL control information (DCI) associated with scheduling data, or a medium access control (MAC)-control element (MAC-CE). Component 198 may be further configured to switch back to operating in one of the SBFD mode or the HD mode after a time length corresponding to the guard band, wherein the time length is responsive to the end of the time period. Component 198 may be further configured to perform the operation with Fig.11 , Fig.12 , Fig.13 , Fig.14 In combination with and / or by Figure 6Any of the aspects performed by a UE in the cellular baseband processor 1424. Component 198 may be within the cellular baseband processor 1424, the application processor 1406, or both the cellular baseband processor 1424 and the application processor 1406. Component 198 may be one or more hardware components that are specifically configured to perform the stated process / algorithm, implemented by one or more processors configured to perform the stated process / algorithm, stored in a computer-readable medium for implementation by one or more processors, or some combination of the above. As shown, the device 1404 may include a variety of components configured for various functions. In one configuration, the device 1404, and specifically the cellular baseband processor 1424 and / or the application processor 1406, includes a component for operating in at least one of a DL or UL SBFD mode or an HD mode associated with SBFD operation, wherein the SBFD operation is associated with a first set of time and frequency resources, and the HD mode is associated with a second set of time and frequency resources, and wherein the first set of time and frequency resources includes a set of DL and UL SBs. The apparatus 1404, and in particular the cellular baseband processor 1424 and / or the application processor 1406, may also include means for obtaining at least one of: (1) a first indication of a time and frequency location of each DL or UL SB in a set of DL and UL SBs in SBFD operation associated with the SBFD mode, or (2) a second indication of a second set of time and frequency resources associated with the HD mode. The apparatus 1404, and in particular the cellular baseband processor 1424 and / or the application processor 1406, may also include means for switching to operate in the other of the SBFD mode or the HD mode based on at least one of the first indication or the second indication. The application processor 1406 may include means for receiving an indication of a scheduling offset via at least one of a radio resource control (RRC) message, a configuration information element (IE), DL control information (DCI) associated with scheduling data, or a medium access control (MAC)-control element (MAC-CE). The application processor 1406 may also include a component for switching back to operating in one of the SBFD mode or the HD mode after a time length corresponding to the guard band, wherein the time length is responsive to an end of the time period. The application processor 1406 may also include a component for sending an indication of the UE's filter switching capability to the network node regarding at least one of the following: UE support for TDD, UE support for SBFD operation, UE support for at least one of HD to SBFD mode transmitter or receiver filter switching, at least one of a type of HD to SBFD mode transmitter or receiver filter switching of the UE, or a BWP switching delay of the UE before at least one of the first indication or the second indication is obtained, at least one of the first indication or the second indication being based on at least a portion of the indication of the UE's filter switching capability.The application processor 1406 may also include processors for executing and. Fig.11 , Fig.12 , Fig.13 , Fig.14 In combination with and / or by Figure 6 1404. The components may be components 198 of the apparatus 1404 configured to perform the functions recited by the components. As described above, the apparatus 1404 may include a TX processor 368, an RX processor 356, and a controller / processor 359. Thus, in one configuration, the components may be the TX processor 368, the RX processor 356, and / or the controller / processor 359 configured to perform the functions recited by the components.

[0130] Fig.151500 is a diagram illustrating an example of a hardware implementation for a network entity 1502. The network entity 1502 may be a BS, a component of a BS, or may implement BS functionality. The network entity 1502 may include at least one of a CU 1510, a DU 1530, or a RU 1540. For example, depending on the layer functionality handled by the component 199, the network entity 1502 may include a CU 1510; both a CU 1510 and a DU 1530; each of the CU 1510, the DU 1530, and the RU 1540; the DU 1530; both a DU 1530 and a RU 1540; or the RU 1540. The CU 1510 may include a CU processor 1512. The CU processor 1512 may include an on-chip memory 1512'. In some aspects, the CU 1510 may also include an additional memory module 1514 and a communication interface 1518. CU 1510 communicates with DU 1530 via a midhaul link, such as an F1 interface. DU 1530 may include a DU processor 1532. DU processor 1532 may include on-chip memory 1532'. In some aspects, DU 1530 may also include an additional memory module 1534 and a communication interface 1538. DU 1530 communicates with RU 1540 via a fronthaul link. RU 1540 may include a RU processor 1542. RU processor 1542 may include on-chip memory 1542'. In some aspects, RU 1540 may also include an additional memory module 1544, one or more transceivers 1546, an antenna 1580, and a communication interface 1548. RU 1540 communicates with UE 104. On-chip memory 1512', 1532', 1542' and additional memory modules 1514, 1534, 1544 may each be considered a computer-readable medium / memory. Each computer readable medium / memory may be non-transitory. Each of processors 1512, 1532, 1542 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.

[0131] As discussed above, component 199 is configured to configure a time and frequency position for each time and frequency resource in a first set of time and frequency resources in SBFD operation associated with the SBFD mode and a second set of time and frequency resources associated with the HD mode, wherein the first set of time and frequency resources includes a set of DL and UL SBs. Component 199 is further configured to send, for the UE, at least one of: (1) a first indication of the time and frequency position of each DL or UL SB in the set of DL and UL SBs in the SBFD operation associated with the SBFD mode, or (2) a second indication of the second set of time and frequency resources associated with the HD mode. In addition, component 199 may be configured to configure at least one of: a scheduling offset, or a guard band, wherein the scheduling offset is associated with SP switching and AP switching, and wherein the guard band is associated with P switching or AP switching, and wherein the filter switching capability of the UE is associated with at least one of: a scheduling offset for SP switching, a guard band for P switching, or a scheduling offset and a guard band for AP switching. Component 199 may be further configured to send an indication of the scheduling offset via at least one of a radio resource control (RRC) message, a configuration information element (IE), DL control information (DCI) associated with the scheduling data, or a medium access control (MAC)-control element (MAC-CE). Component 199 may be further configured to receive, from the UE, an indication of the UE's filter switching capability regarding at least one of: UE support for SBFD operation, UE support for at least one of HD to SBFD mode transmitter or receiver filter switching, at least one of a type of HD to SBFD mode transmitter or receiver filter switching of the UE, or a BWP switching delay of the UE, at least one of the first indication or the second indication being based on at least a portion of the indication of the UE's filter switching capability before the time and frequency positions are configured. Component 199 may be further configured to perform Fig.11 , Fig.12 , Fig.13 , Fig.14 In combination with and / or by Figure 6Any of the aspects performed by a network entity (e.g., a gNB) in . Component 199 may be within one or more processors of one or more of CU 1510, DU 1530, and RU 1540. Component 199 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 of the foregoing. Network entity 1502 may include a variety of components configured for various functions. In one configuration, the network entity 1502 includes a component for configuring a time and frequency location for each time and frequency resource in a first set of time and frequency resources in SBFD operation associated with an SBFD mode and a second set of time and frequency resources associated with an HD mode, wherein the first set of time and frequency resources includes a set of DL and UL SBs. The network entity 1502 may also include means for sending, for the UE, at least one of: (1) a first indication of a time and frequency location of each DL or UL SB in a set of DL and UL SBs in SBFD operation associated with the SBFD mode, or (2) a second indication of a second set of time and frequency resources associated with the HD mode. The network entity 1502 may include means for configuring at least one of: a scheduling offset, or a guard band, wherein the scheduling offset is associated with SP switching and AP switching, and wherein the guard band is associated with P switching or AP switching, and wherein the filter switching capability of the UE is associated with at least one of: a scheduling offset for SP switching, a guard band for P switching, or a scheduling offset and a guard band for AP switching. The network entity 1502 may include means for sending an indication of the scheduling offset via at least one of a radio resource control (RRC) message, a configuration information element (IE), a DL control information (DCI) associated with scheduling data, or a medium access control (MAC)-control element (MAC-CE). The network entity 1502 may include means for receiving, from the UE, an indication of a filter switching capability of the UE before the time and frequency positions are configured, at least one of: support of SBFD operation by the UE, support of at least one of HD to SBFD mode transmitter or receiver filter switching by the UE, at least one of a type of HD to SBFD mode transmitter or receiver filter switching by the UE, or a BWP switching delay by the UE, at least one of the first indication or the second indication being based on at least a portion of the indication of the filter switching capability of the UE. The network entity 1502 may include means for performing the communication with Fig.11 , Fig.12 , Fig.13 , Fig.14 In combination with and / or by Figure 6A means for any of the aspects performed by a network entity (e.g., a gNB) in the network 1502. A means may be a component 199 of the network entity 1502 configured to perform the functions recited by the means. As described above, the network entity 1502 may include a TX processor 316, an RX processor 370, and a controller / processor 375. Thus, in one configuration, a means may be a TX processor 316, an RX processor 370, and / or a controller / processor 375 configured to perform the functions recited by the means.

[0132] Some aspects of wireless communications (e.g., 5G NR) may be designed to provide network-side duplexing through base stations, gNBs, etc., but do not include provisions to enable HD UEs to utilize FD at the SB level. Relatedly, network-side FD suffers from self-interference, as well as clutter from signal reflections that impairs signals in the communication. Therefore, network-side FD is underutilized at both the network and UE sides of the communication. The described aspects provide for a UE to switch operation between an SBFD mode or an HD mode through switching indications based on UE support for HD to SBFD filter switching, the switching indications including the time and frequency position of the SB in the SBFD operation or the time and frequency resources associated with the HD mode, and the switching indications may include adjustable scheduling offsets. These indications may be utilized by the UE / network to allow FD operation for different periodicities at the HD UE, enhance FD on the network side, and reduce interference and increase the duty cycle of signaling.

[0133] It should be understood that the specific order or hierarchy of the blocks in the disclosed process / flowchart is merely an illustration of the exemplary method. It should be understood that the specific order or hierarchy of the blocks in the process / flowchart may be rearranged based on design preferences. Further, some blocks may be combined or omitted. The attached method claims provide the elements of the various blocks in a sample order, but are not limited to the specific order or hierarchy provided.

[0134] 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 various aspects described herein, but should be given the full scope consistent with the language claims. Unless otherwise specified, reference to an element in the singular form does not mean "one and only one", but "one or more". Terms such as "if", "when" and "while" do not mean a direct temporal relationship or reaction. That is, these phrases, such as "when ......", do not mean an 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 no specific or immediate time limit is required 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 advantages 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 A, multiple B, or multiple C. Specifically, combinations such as "at least one of A, B, or C", "one or more of A, B, or C", "at least one of A, B, and C", "one or more of A, B, and C", and "A, B, C, or any combination thereof" may be only A, only B, only C, A and B, A and C, B and C, or A and B and C, where any such combination may contain 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 the first device receives data from the second device or sends data to the 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. All structural and functional equivalents of the elements of the various aspects described throughout the present disclosure that are known or will later be known to a person of ordinary skill in the art are expressly incorporated herein by reference and are covered by the claims. In addition, nothing disclosed herein is intended to be dedicated to the public, regardless of whether such disclosure is explicitly stated in the claims. Words such as "module", "mechanism", "element", "device", etc. cannot replace the word "component". Therefore, no claim element will be understood as a component plus function unless the element is explicitly stated using the phrase "component for..."

[0135] 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, a condition, a factor, etc.) should be interpreted as "based at least on A" unless specifically stated differently.

[0136] The following aspects are merely illustrative and may be combined with other aspects or teachings described herein without limitation.

[0137] Aspect 1 is an apparatus for wireless communication at a user equipment (UE) or a wireless device, the apparatus comprising: a memory; and at least one processor, the at least one processor being coupled to the memory and, based at least in part on information stored in the memory, the at least one processor being configured to: operate in at least one of a downlink (DL) or uplink (UL) SBFD mode or a half-duplex (HD) mode associated with a subband (SB) full-duplex (SBFD) operation, wherein the SBFD operation is associated with a first set of time and frequency resources and the HD mode is associated with a second set of time and frequency resources, wherein the first set of time and frequency resources includes a set of DL and UL SBs; obtain at least one of: (1) a first indication of a time and frequency position of each DL or UL SB in the set of DL and UL SBs in the SBFD operation associated with the SBFD mode, or (2) a second indication of the second set of time and frequency resources associated with the HD mode; and switch to operating in the other of the SBFD mode or the HD mode based on at least one of the first indication or the second indication.

[0138] Aspect 2 is the apparatus according to aspect 1, wherein each SB in the set of DL and UL SBs is configured as a set of resource blocks (RBs) within a corresponding BWP in a set of BWPs or within a corresponding CC in a set of component carriers (CCs).

[0139] Aspect 3 is an apparatus according to any one of aspects 1 and 2, wherein each SB in the set of DL and UL SBs is configured as the RB set based on the UE's lack of support for HD to SBFD mode filter switching.

[0140] Aspect 4 is an apparatus according to any one of aspects 1 to 3, wherein each SB in the set of DL and UL SBs is configured as the RB set and is associated with an adjustable scheduling offset greater than or equal to the SBDF filter adaptation delay of the UE.

[0141] Aspect 5 is the apparatus according to aspects 1 to 4, wherein each SB in the set of DL and UL SBs is configured as a corresponding BWP in the set of BWPs.

[0142] Aspect 6 is an apparatus according to aspect 5, wherein the set of DL and UL SBs includes one or more DL SBs and at least one UL SB, and the set of BWPs includes one or more DL BWPs and one UL BWP, wherein each of the one or more DL SBs is configured as a corresponding DL BWP, and the UL SB is configured as a corresponding UL BWP, and wherein the one or more DL BWPs are active at a single time instance, and the UL BWP is active at the single time instance.

[0143] Aspect 7 is an apparatus according to aspect 5, wherein the set of DL and UL SBs includes one DL SB and one or more UL SBs, and the set of BWPs includes one DL BWP and one or more UL BWPs, wherein the DL SB is configured as a corresponding DL BWP, and each UL SB of the one or more UL SBs is configured as a corresponding UL BWP, and wherein the DL BWP is active at a single time instance, and the one or more UL BWPs are active at the single time instance.

[0144] Aspect 8 is an apparatus according to aspect 7, wherein the one or more DL SBs include two non-contiguous DL SBs, wherein the two non-contiguous DL SBs are configured as non-contiguous DL BWPs, and wherein the non-contiguous DL BWP is active at the single time instance and the corresponding UL BWP is active at the single time instance.

[0145] Aspect 9 is an apparatus according to aspect 5, wherein the set of DL and UL SBs includes one or more DL SBs and one UL SB, wherein the one or more DL SBs are configured as corresponding DL BWPs and the UL SB is configured as corresponding UL BWP, and wherein the corresponding DL BWP and the corresponding UL BWP include the same center frequency.

[0146] Aspect 10 is an apparatus according to aspect 5, wherein the set of DL and UL SBs includes one DL SB and one or more UL SBs, wherein the DL SB is configured as a corresponding DL BWP and the one or more UL SBs are configured as corresponding UL BWP, and wherein the corresponding DL BWP and the corresponding UL BWP include the same center frequency.

[0147] Aspect 11 is an apparatus according to aspect 10, wherein the one or more UL SBs include two non-contiguous UL SBs, wherein the two non-contiguous UL SBs are configured as non-contiguous UL BWPs, and wherein the non-contiguous UL BWP is active at a single time instance and the corresponding DL BWP is active at the single time instance.

[0148] Aspect 12 is an apparatus according to any one of aspects 5 to 11, wherein if the UE supports HD to SBFD mode filter switching, each SB in the set of DL and UL SBs is configured as the corresponding BWP in the set of BWPs.

[0149] Aspect 13 is an apparatus according to any one of aspects 5 to 12, wherein each SB in the set of DL and UL SBs is configured as the corresponding BWP in the set of BWPs and is associated with an adjustable scheduling offset that is less than a BWP switching delay of the UE.

[0150] Aspect 14 is an apparatus according to any one of Aspects 1 to 13, wherein the switching to operate in the other of the SBFD mode or the HD mode is associated with a filter switching capability of the UE, and wherein the filter switching capability corresponds to a latency of the switching to operate in the other of the SBFD mode or the HD mode.

[0151] Aspect 15 is an apparatus according to Aspect 14, wherein the delay of the switching is associated with at least one of: a scheduling offset, or a guard band, wherein the scheduling offset is associated with semi-persistent (SP) switching and aperiodic (AP) switching, and wherein the guard band is associated with periodic (P) switching or the AP switching.

[0152] Aspect 16 is an apparatus according to any one of Aspects 1 to 15, wherein the delay of the switching is associated with the scheduling offset, and the at least one processor is configured to: receive an indication of the scheduling offset via at least one of a radio resource control (RRC) message, a configuration information element (IE), DL control information (DCI) associated with scheduling data, or a medium access control (MAC)-control element (MAC-CE).

[0153] Aspect 17 is an apparatus according to Aspect 16, wherein the scheduling offset is based on signaling and includes multiple symbols or a time duration, the multiple symbols having a subcarrier spacing (SCS) associated with the signaling, wherein the signaling includes at least one of the following: the DCI associated with the scheduling data, a first acknowledgment (ACK) of the DCI associated with the scheduling data, a UL transmission associated with the DCI associated with the scheduling data, or a second ACK for other DCI not associated with the scheduling data.

[0154] Aspect 18 is an apparatus according to Aspect 15, wherein the delay of the switching is associated with the scheduling offset and the guard band used for the AP switching; and wherein the time period of the SBFD mode or the HD mode used for the AP switching includes at least one of a plurality of symbols or a time duration.

[0155] Aspect 19 is an apparatus according to Aspect 18, wherein the at least one processor is further configured to: switch back to operating in one of the SBFD mode or the HD mode after a time length corresponding to the guard band, wherein the time length is responsive to an end of the time period.

[0156] Aspect 20 is an apparatus according to any one of Aspects 1 to 19, wherein the at least one processor is further configured to: send an indication of the filter switching capability of the UE to a network node before the at least one of the first indication or the second indication is obtained, regarding at least one of: the UE's support for SBFD operation; the UE's support for at least one of HD to SBFD mode transmitter or receiver filter switching; at least one of the types of the HD to SBFD mode transmitter or receiver filter switching of the UE; or the bandwidth part (BWP) switching delay of the UE; and wherein at least one of the first indication or the second indication is based on at least a portion of the indication of the filter switching capability of the UE.

[0157] Aspect 21 is an apparatus according to any one of Aspects 1 to 20, wherein the apparatus further comprises at least one transceiver, the at least one transceiver being coupled to the at least one processor, and wherein in order to obtain at least one of the first indication or the second indication, the at least one processor is configured to: receive at least one of the first indication or the second indication from a network node via the at least one transceiver.

[0158] Aspect 22 is an apparatus according to any one of Aspects 1 to 13 and 21, wherein one of the first indication or the second indication is obtained, and wherein the switching to operate in the other of the SBFD mode or the HD mode is based on at least one of time switching or frequency switching associated with a semi-static switching mode.

[0159] Aspect 23 is an apparatus for performing wireless communications at a network node, the apparatus comprising: a memory; and at least one processor, the at least one processor being coupled to the memory and, based at least in part on information stored in the memory, the at least one processor being configured to: configure a time and frequency position for each time and frequency resource in a first set of time and frequency resources in a subband (SB) full-duplex (SBFD) mode and a second set of time and frequency resources associated with a half-duplex (HD) mode, wherein the first set of time and frequency resources comprises a set of downlink (DL) and uplink (UL) SBs; and send to a user equipment (UE) at least one of: (1) a first indication of the time and frequency position of each DL or UL SB in the set of DL and UL SBs in the SBFD mode associated with the SBFD mode, or (2) a second indication of the second set of time and frequency resources associated with the HD mode.

[0160] Aspect 24 is an apparatus according to Aspect 23, wherein each SB in the set of DL and UL SBs is configured as a set of resource blocks (RBs) within a corresponding BWP in a set of bandwidth parts (BWPs) or a corresponding CC in a set of component carriers (CCs); or wherein each SB in the set of DL and UL SBs is configured as a corresponding BWP in the set of BWPs.

[0161] Aspect 25 is an apparatus according to aspects 23 and 24, wherein each SB in the set of DL and UL SBs is configured as a corresponding BWP in the set of BWPs; and: wherein the set of DL and UL SBs includes one or more DL SBs and at least one UL SB, and the set of BWPs includes one or more DL BWPs and one UL BWP, wherein each of the one or more DL SBs is configured as a corresponding DL BWP, and the UL SB is configured as a corresponding UL BWP, and wherein the one or more DL BWPs are active at a single time instance, and the UL BWP is active at the single time instance; wherein the set of DL and UL SBs includes one DL SB and one or more UL SBs, and the set of BWPs includes one DL BWP and one or more UL BWPs, wherein the DL SB is configured as a corresponding DL BWP, and each of the one or more UL SBs is configured as a corresponding UL BWP, and wherein the DLBWP is active at the single time instance, and the one or more UL BWPs are active at the single time instance; wherein the set of DL and UL SBs includes one DL SB and one or more UL SBs, and the set of BWPs includes one DL BWP and one or more UL BWPs, wherein the DL SB is configured as a corresponding DL BWP, and each of the one or more UL SBs is configured as a corresponding UL BWP, and wherein the DLBWP is active at the single time instance, and the one or more UL BWPs are active at the single time instance; The set of DL and UL SBs comprises a DL SB and one or more UL SBs, wherein the one or more DL SBs are configured as corresponding DL BWPs and the one or more UL SBs are configured as corresponding UL BWPs, and wherein the corresponding DL BWP and the corresponding UL BWP comprise the same center frequency; or wherein the set of DL and UL SBs comprises a DL SB and one or more UL SBs, wherein the DL SB is configured as a corresponding DL BWP and the one or more UL SBs are configured as corresponding UL BWPs, and wherein the corresponding DL BWP and the corresponding UL BWP comprise the same center frequency.

[0162] Aspect 26 is an apparatus according to aspect 25, wherein the one or more DL SBs include two non-contiguous DL SBs, wherein the two non-contiguous DL SBs are configured as non-contiguous DL BWPs, and wherein the non-contiguous DL BWP is active at the single time instance and the corresponding UL BWP is active at the single time instance; or wherein the one or more UL SBs include two non-contiguous UL SBs, wherein the two non-contiguous UL SBs are configured as non-contiguous UL BWPs, and wherein the non-contiguous UL BWP is active at the single time instance and the corresponding DL BWP is active at the single time instance.

[0163] Aspect 27 is an apparatus according to aspects 23 and 24, wherein each SB in the set of DL and UL SBs is configured as a resource block (RB) set for at least one of: UE-specific configuration, or cell-common configuration.

[0164] Aspect 28 is an apparatus according to any one of Aspects 23 to 27, wherein the at least one processor is further configured to: configure at least one of the following: a scheduling offset, or a guard band, wherein the scheduling offset is associated with semi-persistent (SP) switching and aperiodic (AP) switching, and wherein the guard band is associated with periodic (P) switching or the AP switching; wherein the filter switching capability of the UE is associated with at least one of the following: the scheduling offset for the SP switching, the guard band for the P switching, or the scheduling offset and the guard band for the AP switching.

[0165] Aspect 29 is an apparatus according to any one of Aspects 23 to 28, wherein the apparatus is a wireless communication device, which also includes at least one of an antenna or a transceiver coupled to the at least one processor, wherein in order to send at least one of the first indication or the second indication, the at least one processor is configured to: send at least one of the first indication or the second indication to the UE via the at least one transceiver.

[0166] Aspect 30 is a method for wireless communication implementing any one of aspects 1 to 29.

[0167] Aspect 31 is an apparatus for wireless communication, the apparatus comprising means for implementing any one of aspects 1 to 29.

[0168] Aspect 32 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 29.

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 the information stored in the memory, the at least one processor configured to: operating in at least one of a downlink (DL) or uplink (UL) SBFD mode or a half-duplex (HD) mode associated with sub-band (SB) full-duplex (SBFD) operation, wherein the SBFD operation is associated with a first set of time and frequency resources and the HD mode is associated with a second set of time and frequency resources, wherein the first set of time and frequency resources includes a set of DL and UL SBs; obtaining at least one of: (1) a first indication of a time and frequency location of each DL or UL SB in the set of DL and UL SBs in the SBFD operation associated with the SBFD mode, or (2) a second indication of the second set of time and frequency resources associated with the HD mode; as well as Switching to operating in the other of the SBFD mode or the HD mode based on at least one of the first indication or the second indication.

2. The apparatus of claim 1, wherein each SB in the set of DL and UL SBs is configured as a set of resource blocks (RBs) within a corresponding BWP in a set of BWPs or within a corresponding CC in a set of component carriers (CCs).

3. The apparatus of claim 2, wherein each of the sets of DL and UL SBs is configured as the RB set based on lack of support by the UE for HD to SBFD mode filter switching.

4. The apparatus of claim 2, wherein each of the sets of DL and UL SBs is configured as the RB set and is associated with an adjustable scheduling offset that is greater than or equal to an SBDF filter adaptation delay of the UE. 5 . The apparatus of claim 1 , wherein each SB in the set of DL and UL SBs is configured as a corresponding BWP in a set of BWPs.

6. The apparatus of claim 5, wherein the set of DL and UL SBs comprises one or more DL SBs and at least one UL SB, and the set of BWPs comprises one or more DL BWPs and one UL BWP, wherein each of the one or more DL SBs is configured as a corresponding DL BWP and the UL SB is configured as a corresponding UL BWP, and wherein the one or more DL BWPs are active at a single time instance and the UL BWP is active at the single time instance.

7. The apparatus of claim 5, wherein the set of DL and UL SBs comprises one DL SB and one or more UL SBs, and the set of BWPs comprises one DL BWP and one or more UL BWPs, wherein the DL SB is configured as a corresponding DL BWP, and each of the one or more UL SBs is configured as a corresponding UL BWP, and wherein the DL BWP is active at a single time instance, and the one or more UL BWPs are active at the single time instance.

8. The apparatus of claim 7, wherein the one or more DL SBs include two non-contiguous DL SBs, wherein the two non-contiguous DL SBs are configured as non-contiguous DL BWPs, wherein the non-contiguous DL BWPs are active at the single time instance, and the corresponding UL BWP is active at the single time instance.

9. The apparatus of claim 5, wherein the set of DL and UL SBs comprises one or more DL SBs and one UL SB, wherein the one or more DL SBs are configured as corresponding DL BWPs and the UL SB is configured as corresponding UL BWP, wherein the corresponding DL BWP and the corresponding UL BWP comprise a same center frequency.

10. The apparatus of claim 5, wherein the set of DL and UL SBs comprises one DL SB and one or more UL SBs, wherein the DL SB is configured as a corresponding DL BWP, and the one or more UL SBs are configured as corresponding UL BWPs, wherein the corresponding DL BWP and the corresponding UL BWP comprise a same center frequency.

11. The apparatus of claim 10, wherein the one or more UL SBs include two non-contiguous UL SBs, wherein the two non-contiguous UL SBs are configured as non-contiguous UL BWPs, wherein the non-contiguous UL BWPs are active at a single time instance and the corresponding DL BWP is active at the single time instance.

12. The apparatus of claim 5, wherein if the UE supports HD to SBFD mode filter switching, each of the SBs in the set of DL and UL SBs is configured as the corresponding BWP in the set of BWPs.

13. The apparatus of claim 5, wherein each of the SBs in the set of DL and UL SBs is configured as the corresponding BWP in the set of BWPs and is associated with an adjustable scheduling offset that is less than a BWP switching latency of the UE.

14. An apparatus according to claim 1, wherein the switching to operate in the other of the SBFD mode or the HD mode is associated with a filter switching capability of the UE, and wherein the filter switching capability corresponds to a latency of the switching to operate in the other of the SBFD mode or the HD mode.

15. An apparatus according to claim 14, wherein the delay of the switching is associated with at least one of the following: a scheduling offset, or a guard band, wherein the scheduling offset is associated with semi-persistent (SP) switching and aperiodic (AP) switching, and wherein the guard band is associated with periodic (P) switching or the AP switching.

16. The apparatus of claim 15, wherein the latency of the switching is associated with the scheduling offset, and wherein the at least one processor is further configured to: An indication of the scheduling offset is received via at least one of a radio resource control (RRC) message, a configuration information element (IE), DL control information (DCI) associated with scheduling data, or a medium access control (MAC)-control element (MAC-CE).

17. The apparatus of claim 16, wherein the scheduling offset is based on signaling and comprises a plurality of symbols or a time duration, the plurality of symbols having a subcarrier spacing (SCS) associated with the signaling, wherein the signaling comprises at least one of: the DCI associated with the scheduling data, A first acknowledgement (ACK) for the DCI associated with the scheduled data, a UL transmission associated with the DCI associated with the scheduled data, or a second ACK for other DCI not associated with the scheduled data.

18. The apparatus of claim 15, wherein the delay of the switching is associated with the scheduling offset and the guard band for the AP switching; and Wherein a time period of the SBFD mode or the HD mode for the AP switching includes at least one of a plurality of symbols or a time duration.

19. The apparatus of claim 18, wherein the at least one processor is further configured to: and switching back to operating in said one of the SBFD mode or the HD mode after a length of time corresponding to the guard band, wherein the length of time is responsive to an end of the time period.

20. The apparatus of claim 14, wherein the at least one processor is further configured to: Sending an indication of at least one of the following to a network node for the filter switching capability of the UE before the at least one of the first indication or the second indication is obtained: Support of SBFD operation by the UE; support by the UE of at least one of HD to SBFD mode transmitter or receiver filter switching; at least one of a type of the HD to SBFD mode transmitter or receiver filter switching of the UE; or Bandwidth part (BWP) switching delay of the UE; and Wherein at least one of the first indication or the second indication is based on at least a portion of the indication of the filter switching capability of the UE.

21. The apparatus of claim 1 , further comprising at least one transceiver coupled to the at least one processor, wherein in order to obtain at least one of the first indication or the second indication, the at least one processor is configured to: receive at least one of the first indication or the second indication from a network node via the at least one transceiver.

22. The apparatus of claim 1, wherein one of the first indication or the second indication is obtained, wherein the switching to operate in the other of the SBFD mode or the HD mode is based on at least one of time switching or frequency switching associated with a semi-static switching mode.

23. 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 the information stored in the memory, the at least one processor configured to: configuring a time and frequency location for each time and frequency resource in a first set of time and frequency resources in a sub-band (SB) full-duplex (SBFD) mode and a second set of time and frequency resources associated with a half-duplex (HD) mode, wherein the first set of time and frequency resources includes a set of downlink (DL) and uplink (UL) SBs; and At least one of the following is sent to a user equipment (UE): (1) a first indication of the time and frequency location of each DL or UL SB in the set of DL and UL SBs in the SBFD operation associated with the SBFD mode, or (2) a second indication of the second set of time and frequency resources associated with the HD mode.

24. The apparatus of claim 23, wherein each SB in the set of DL and UL SBs is configured as a set of resource blocks (RBs) within a corresponding BWP in a set of BWPs or within a corresponding CC in a set of component carriers (CCs); or Wherein each SB in the set of DL and UL SBs is configured as a corresponding BWP in the set of BWPs.

25. The apparatus of claim 24, wherein each SB in the set of DL and UL SBs is configured as a corresponding BWP in the set of BWPs; and wherein the set of DL and UL SBs includes one or more DL SBs and at least one UL SB, and the set of BWPs includes one or more DL BWPs and one UL BWP, wherein each of the one or more DL SBs is configured as a corresponding DL BWP and the UL SB is configured as a corresponding UL BWP, and wherein the one or more DL BWPs are active at a single time instance and the UL BWP is active at the single time instance, wherein the set of DL and UL SBs includes one DL SB and one or more UL SBs, and the set of BWPs includes one DL BWP and one or more UL BWPs, wherein the DL SB is configured as the corresponding DL BWP and each of the one or more UL SBs is configured as the corresponding UL BWP, and wherein the DL BWP is active at the single time instance and the one or more UL BWPs are active at the single time instance, wherein the set of DL and UL SBs comprises one or more DL SBs and one UL SB, wherein the one or more DL SBs are configured as corresponding DL BWPs and the UL SBs are configured as corresponding UL BWPs, wherein the corresponding DL BWP and the corresponding UL BWP comprise the same center frequency, or The set of DL and UL SBs includes one DL SB and one or more UL SBs, wherein the DL SB is configured as a corresponding DL BWP, and the one or more UL SBs are configured as a corresponding UL BWP, wherein the corresponding DL BWP and the corresponding UL BWP include the same center frequency.

26. The apparatus of claim 25, wherein the one or more DL SBs include two non-contiguous DL SBs, wherein the two non-contiguous DL SBs are configured as non-contiguous DL BWPs, wherein the non-contiguous DL BWPs are active at the single time instance, and the corresponding UL BWP is active at the single time instance; or The one or more UL SBs include two non-contiguous UL SBs, wherein the two non-contiguous UL SBs are configured as non-contiguous UL BWPs, wherein the non-contiguous UL BWPs are active at the single time instance, and the corresponding DL BWP is active at the single time instance.

27. The apparatus of claim 23, wherein each SB in the set of DL and UL SBs is configured as a resource block (RB) set for at least one of: UE-specific configuration or cell-common configuration.

28. The apparatus of claim 23, wherein the at least one processor is further configured to: configuring at least one of: a scheduling offset, or a guard band, wherein the scheduling offset is associated with a semi-persistent (SP) switching and an aperiodic (AP) switching, and wherein the guard band is associated with a periodic (P) switching or the AP switching; and The filter switching capability of the UE is associated with at least one of: the scheduling offset for the SP switching, the guard band for the P switching, or the scheduling offset and the guard band for the AP switching.

29. A method of wireless communication at a user equipment (UE), the method comprising: operating in at least one of a downlink (DL) or uplink (UL) SBFD mode or a half-duplex (HD) mode associated with sub-band (SB) full-duplex (SBFD) operation, wherein the SBFD operation is associated with a first set of time and frequency resources and the HD mode is associated with a second set of time and frequency resources, wherein the first set of time and frequency resources includes a set of DL and UL SBs; obtaining at least one of: (1) a first indication of a time and frequency location of each DL or UL SB in the set of DL and UL SBs in the SBFD operation associated with the SBFD mode, or (2) a second indication of the second set of time and frequency resources associated with the HD mode; as well as Switching to operating in the other of the SBFD mode or the HD mode based on at least one of the first indication or the second indication.

30. A method for wireless communication at a network node, the method comprising: configuring a time and frequency location for each time and frequency resource in a first set of time and frequency resources in a sub-band (SB) full-duplex (SBFD) mode and a second set of time and frequency resources associated with a half-duplex (HD) mode, wherein the first set of time and frequency resources includes a set of downlink (DL) and uplink (UL) SBs; and At least one of the following is sent to a user equipment (UE): (1) a first indication of the time and frequency location of each DL or UL SB in the set of DL and UL SBs in the SBFD operation associated with the SBFD mode, or (2) a second indication of the second set of time and frequency resources associated with the HD mode.

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