Method and apparatus for dynamic scheduling of sub-band full duplex communications

Abstract

Aspects of the present disclosure provide techniques for dynamic scheduling of subband transition or cancellation for subband full duplex (SBFD) operation between a base station and a UE. The ability to communicate via simultaneous UL and DL transmissions by dynamic scheduling allows for an increased uplink duty cycle, thereby reducing time delay (e.g., it is possible to receive DL signals in only UL slots, which may achieve time delay savings) and improving uplink coverage. In addition, the techniques according to the present disclosure enable flexible and dynamic UL and DL resource adaptation and also provide enhanced system capacity, resource utilization and spectral efficiency.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims the benefit of U.S. patent application serial number 17 / 870,539, filed on July 21, 2022, entitled “METHODS AND APPARATUS FOR DYNAMIC SCHEDULING OF SUB-BAND FULLDUPLEX COMMUNICATIONS,” which is assigned to the assignee of the present invention and is incorporated herein by reference in its entirety. Background Art Technical Field

[0003] The present disclosure relates generally to communication systems, and more particularly to implementing dynamic scheduling for sub-band full-duplex (SBFD) communications.

[0004] introduction

[0005] 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.

[0006] 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). 5GNR is part of the continued 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. 5G NR includes services associated with enhanced mobile broadband (eMBB), massive machine type communications (mMTC), and ultra-reliable low latency communications (URLLC). Certain aspects of 5G NR may be based on the 4G Long Term Evolution (LTE) standard.

[0007] Further improvements are needed for 5G NR technology. In addition, these improvements may also be applicable to other multiple access technologies and telecommunication standards that employ these technologies. For example, it is desirable to improve efficiency and latency related to mobility of user equipment (UE) communicating with network entities. Summary of the invention

[0008] The following presents a simplified summary of one or more aspects in order to provide a basic understanding of these aspects. This summary is not an extensive overview of all contemplated aspects, and is neither intended to identify key or important elements of all aspects, nor to describe the scope of any or all aspects. Its sole purpose is to present some concepts of one or more aspects in a simplified form as a prelude to a more detailed description presented later.

[0009] One example aspect includes a method for wireless communication by a user equipment, the method comprising receiving a configuration message from a base station at a user equipment (UE) that modifies an initial SBFD resource configuration allocated for communication between the base station and the UE. In some examples, the initial SBFD resource configuration may allow both downlink communication and uplink communication on a sub-band basis within the same time slot, such that at least a first portion of the bandwidth within a first time slot is allocated for uplink communication, and at least a second portion of the bandwidth within the first time slot is allocated for downlink communication. The method also includes communicating with the base station on a modified SBFD resource configuration based on the configuration message received from the base station. The modified SBFD resource configuration may modify at least one of a first portion of the bandwidth within the first time slot that was originally allocated for uplink communication or a second portion of the bandwidth within the first time slot that was originally allocated for downlink communication in the initial SBFD resource configuration.

[0010] Another example aspect includes an apparatus for wireless communication by a user equipment, the apparatus comprising a memory and a processor coupled to the memory. The processor is configured to receive a configuration message from a base station at a UE, the configuration message modifying an initial SBFD resource configuration allocated for communication between the base station and the UE. In some examples, the initial SBFD resource configuration may allow both downlink communication and uplink communication on a sub-band basis within the same time slot, so that at least a first portion of the bandwidth within a first time slot is allocated for uplink communication, and at least a second portion of the bandwidth within the first time slot is allocated for downlink communication. The processor is further configured to communicate with the base station on a modified SBFD resource configuration based on the configuration message received from the base station. The modified SBFD resource configuration may modify at least one of the first portion of the bandwidth within the first time slot originally allocated for uplink communication or the second portion of the bandwidth within the first time slot originally allocated for downlink communication in the initial SBFD resource configuration.

[0011] Another example includes an apparatus for wireless communication by a user equipment, the apparatus including a component for receiving a configuration message from a base station at a user equipment (UE), the configuration message modifying an initial SBFD resource configuration allocated for communication between the base station and the UE. In some examples, the initial SBFD resource configuration may allow both downlink communication and uplink communication on a sub-band basis within the same time slot, such that at least a first portion of the bandwidth within a first time slot is allocated for uplink communication, and at least a second portion of the bandwidth within the first time slot is allocated for downlink communication. The apparatus also includes a component for communicating with the base station on a modified SBFD resource configuration based on the configuration message received from the base station. The modified SBFD resource configuration may modify at least one of a first portion of the bandwidth within the first time slot originally allocated for uplink communication or a second portion of the bandwidth within the first time slot originally allocated for downlink communication in the initial SBFD resource configuration.

[0012] Another example includes a non-transitory computer-readable medium storing instructions that can be executed by a processor for wireless communication. The instructions executable by the processor include instructions for receiving a configuration message from a base station at a user equipment (UE) that modifies an initial SBFD resource configuration allocated for communication between the base station and the UE. In some examples, the initial SBFD resource configuration may allow both downlink communication and uplink communication on a sub-band basis within the same time slot, so that at least a first portion of the bandwidth within a first time slot is allocated for uplink communication, and at least a second portion of the bandwidth within the first time slot is allocated for downlink communication. The instructions executable by the processor also include instructions for communicating with the base station on a modified SBFD resource configuration based on the configuration message received from the base station. The modified SBFD resource configuration may modify at least one of the first portion of the bandwidth within the first time slot originally allocated for uplink communication or the second portion of the bandwidth within the first time slot originally allocated for downlink communication in the initial SBFD resource configuration.

[0013] To achieve the foregoing and related ends, 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 illustrative features of one or more aspects. However, these features are merely indicative of some of the various ways in which the principles of the various aspects may be employed, and this specification is intended to include all such aspects and their equivalents. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1A is a diagram illustrating an example of a wireless communication system and an access network.

[0015] Figure 1Bis a diagram illustrating an example of a decomposed base station architecture according to various aspects of the present disclosure.

[0016] Figure 2A is a diagram illustrating an example of a first frame according to various aspects of the present disclosure.

[0017] Figure 2B is a diagram illustrating an example of DL channels within a subframe according to various aspects of the present disclosure.

[0018] Figure 2C is a diagram illustrating an example of a second frame according to various aspects of the present disclosure.

[0019] Figure 2D is a diagram illustrating an example of UL channels within a subframe according to various aspects of the present disclosure.

[0020] Figure 3 is a diagram illustrating an example of a base station and a user equipment (UE) in an access network.

[0021] Figure 4A is an example of dynamic scheduling of SBFD communication resource configuration from an initial SBFD resource configuration to a revised SBFD resource configuration for a SBFD time slot.

[0022] Figure 4B is another example of dynamic scheduling of SBFD communication resource configuration from an initial SBFD resource configuration to a revised SBFD resource configuration for a SBFD time slot.

[0023] Figure 4C is another example of dynamic scheduling of SBFD communication resource configuration from an initial SBFD resource configuration to a revised SBFD resource configuration for a SBFD time slot.

[0024] Figure 4D is another example of dynamic scheduling of SBFD communication resource configuration from an initial SBFD resource configuration to a revised SBFD resource configuration for a SBFD time slot.

[0025] Figure 4E is another example of dynamic scheduling of SBFD communication resource configuration from an initial SBFD resource configuration to a revised SBFD resource configuration for a SBFD time slot.

[0026] Figure 4F is another example of dynamic scheduling of SBFD communication resource configuration from an initial SBFD resource configuration to a revised SBFD resource configuration for a SBFD time slot.

[0027] Figure 4Gis another example of dynamic scheduling of SBFD communication resource configuration from an initial SBFD resource configuration to a revised SBFD resource configuration for a SBFD time slot.

[0028] Figure 4H is another example of dynamic scheduling of SBFD communication resource configuration from an initial SBFD resource configuration to a revised SBFD resource configuration for a SBFD time slot.

[0029] Figure 5 is a schematic diagram of an example implementation of various components of user equipment according to various aspects of the present disclosure.

[0030] Figure 6 is a flow chart of an example of a method of wireless communication implemented by a UE according to various aspects of the present disclosure. DETAILED DESCRIPTION

[0031] The specific embodiments described below in conjunction with the accompanying drawings are intended as descriptions of various configurations and are not intended to represent the only configurations with 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, it is apparent to those skilled in the art that these concepts can be practiced without these specific details. In some instances, well-known structures and components are shown in block diagram form to avoid blurring these concepts.

[0032] Conventional communication methods may use half-duplex communication between devices. Examples of half-duplex communication include time division duplex (TDD) and frequency division duplex (FDD). In one example, in a half-duplex scheme, each time slot may be designated as a time slot for downlink (DL) transmission or a time slot for uplink (UL) transmission. Examples of DL transmissions include a physical downlink control channel (PDCCH), a physical downlink shared channel (PDSCH), and a physical broadcast channel (PBCH). Examples of UL transmissions include a physical uplink control channel (PUCCH) or a physical uplink shared channel (PUSCH).

[0033] Compared to half-duplex communication, full-duplex communication allows devices to communicate via simultaneous UL and DL transmissions. The sub-band full-duplex (SBFD) scheme allows full-duplex communication by dividing the time slot into both UL transmission and DL transmission, as described herein. In one example, a base station may divide a component carrier (CC) into UL bandwidth and DL bandwidth, thereby improving cell edge coverage with minimal throughput loss relative to a baseline time division duplex (TDD) macro. Specifically, the UE may send UL information (e.g., data or control information) to the base station in the same time slot as the DL transmission from the base station, rather than waiting for the next available UL transmission time slot as is the case in conventional half-duplex communication. In the case of carrier aggregation in unpaired spectrum, frequency division duplex (FDD) may be applied across CCs or within CCs.

[0034] Aspects of the present disclosure provide techniques for dynamically scheduled sub-band switching or cancellation for SBFD operation between a base station and a UE. The ability to communicate via simultaneous UL and DL transmissions through dynamic scheduling allows for increased uplink duty cycle, thereby reducing latency (e.g., it is possible to receive DL signals in UL-only time slots, which can achieve latency savings) and improving uplink coverage. In addition, implementing flexible and dynamic UL and DL resource adaptation according to the techniques of the present disclosure also provides enhanced system capacity, resource utilization, and spectrum efficiency.

[0035] Several aspects of telecommunication systems will now be presented with reference to various apparatus and methods. These apparatus and methods will be 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.

[0036] 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. The example of a processor includes a microprocessor, a microcontroller, a graphics processing unit (GPU), a central processing unit (CPU), an application processor, a digital signal processor (DSP), a reduced instruction set computing (RISC) processor, a system on a chip (SoC), a baseband processor, a field programmable gate array (FPGA), a programmable logic device (PLD), a state machine, a gate logic piece, a discrete hardware circuit 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 it is referred to as software, firmware, middleware, microcode, hardware description language or other names, software should be widely 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, etc.

[0037] Therefore, in one or more example embodiments, the described functions can be implemented with hardware, software or any combination thereof. If implemented with software, the functions can be stored or encoded on a computer-readable medium as one or more instructions or codes. Computer-readable media include computer storage media. Storage media can be any available medium that can be accessed by a computer. By way of example and not limitation, such computer-readable media can include random access memory (RAM), read-only memory (ROM), electrically erasable programmable ROM (EEPROM), optical disk storage device, magnetic disk storage device, other magnetic storage devices, a combination of computer-readable media of the above type, 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.

[0038] Figure 1A is a diagram illustrating an example of a wireless communication system 100 (also referred to as a wireless wide area network (WWAN)) that includes a base station 102 (also referred to herein as a network entity), a user equipment (UE) 104, an evolved packet core (EPC) 160, and another core network 190 (e.g., a 5G core (5GC)).

[0039] One or more of the UEs 104 may include a communication management component 198 operable to perform techniques for sub-band switching or cancellation for dynamic scheduling of SBFD operations between a base station and one or more UEs.

[0040] At one or more of the UEs 104, and additionally with reference to Figure 5, the communication management component 198 includes a receiving component 520 configured to receive a configuration message from a base station at a UE, the configuration message modifying an initial SBFD resource configuration allocated for communication between the base station and the UE. The initial SBFD resource configuration may allow both downlink communication and uplink communication on a sub-band basis within the same time slot, such that at least a first portion of the bandwidth within a first time slot is allocated for uplink communication, and at least a second portion of the bandwidth within the first time slot is allocated for downlink communication. Conversely, the initial SBFD resource configuration may include: at least a first portion of the bandwidth within the first time slot is allocated for downlink communication, and at least a second portion of the bandwidth within the first time slot is allocated for uplink communication. In other examples, one or more sub-bands within a SBFD time slot may be allocated for flexible communication (e.g., service-based UL or DL ​​communication).

[0041] The communication management component 198 may also include an SBFD scheduling component 525, which is configured in conjunction with the transceiver to communicate with the base station on a modified SBFD resource configuration based on the configuration message received from the base station. The modified SBFD resource configuration may modify at least one of the first portion of the bandwidth in the first time slot originally allocated for uplink communication or the second portion of the bandwidth in the first time slot originally allocated for downlink communication in the initial SBFD resource configuration.

[0042] Base station (or network entity) 102 may include macro cells (high-power cellular base stations) and / or small cells (low-power cellular base stations). Macro cells include base stations. Small cells include femto cells, pico cells, and micro cells. Base station 102 may be configured as a decomposed RAN (D-RAN) or open RAN (O-RAN) architecture, in which functionality is split between multiple units (such as a central unit (CU), one or more distributed units (DUs), or radio units (RUs)). Such an architecture may be configured to utilize a protocol stack that is logically split between one or more units (such as one or more CUs and one or more DUs). In some aspects, a CU may be implemented within an edge RAN node, and in some aspects, one or more DUs may be co-located with a CU, or may be geographically distributed in one or more RAN nodes. A DU may be implemented to communicate with one or more RUs. Any decomposed component in a D-RAN and / or O-RAN architecture may be referred to as a network entity herein.

[0043] The base station 102 configured for 4G Long Term Evolution (LTE) (collectively referred to as Evolved Universal Mobile Telecommunications System (UMTS) Terrestrial Radio Access Network (E-UTRAN)) can interface with the EPC 160 via a first backhaul link 132 (e.g., an S1 interface). The base station 102 configured for 5G New Radio (NR) (collectively referred to as Next Generation RAN (NG-RAN)) can interface with the core network 190 via a second backhaul link 184. Among other functions, the base station 102 can also perform one or more of the following functions: delivery of user data, radio channel encryption and decryption, integrity protection, header compression, mobility control functions (e.g., handover, dual connectivity), inter-cell interference coordination, connection establishment and release, load balancing, distribution of non-access stratum (NAS) messages, NAS node selection, synchronization, radio access network (RAN) sharing, multimedia broadcast multicast service (MBMS), subscriber and equipment tracking, RAN information management (RIM), paging, positioning, and delivery of warning messages. The base stations 102 may communicate with each other directly or indirectly (eg, via the EPC 160 or the core network 190) via the third backhaul link 134 (eg, an X2 interface). The first backhaul link 132, the second backhaul link 184, and the third backhaul link 134 may be wired or wireless.

[0044] Base station 102 can communicate wirelessly with UE 104. Each of base stations 102 can provide communication coverage for a corresponding geographic coverage area 110. There may be overlapping geographic coverage areas 110. For example, a small cell 102' may have a coverage area 110' that overlaps with the coverage area 110 of one or more macro base stations 102. 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). A communication link 120 between base station 102 and UE 104 may include an uplink (UL) (also referred to as a reverse link) transmission from UE 104 to base station 102 and / or a downlink (DL) (also referred to as a forward link) transmission from base station 102 to UE 104. The communication link 120 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. Base station 102 / UE 104 may use spectrum with a bandwidth of up to Y MHz (e.g., 5 MHz, 10 MHz, 15 MHz, 20 MHz, 100 MHz, 400 MHz, etc.) for each carrier allocated in the carrier aggregation for a total of up to Yx megahertz (MHz) (x component carriers) for transmission in each direction. The carriers may or may not be adjacent to each other. The allocation of carriers may be asymmetric with respect to DL and UL (e.g., more or fewer carriers may be allocated for DL ​​compared to UL). The 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).

[0045] 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 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). D2D communication may be through a variety of wireless D2D communication systems, such as, for example, WiMedia, Bluetooth, ZigBee, Wi-Fi based on the Institute of Electrical and Electronics Engineers (IEEE) 802.11 standard, LTE, or NR.

[0046] The wireless communication system may also include a Wi-Fi access point (AP) 150 that communicates with a Wi-Fi station (STA) 152 via a communication link 154 in, for example, a 5 gigahertz (GHz) unlicensed spectrum. When communicating in the unlicensed spectrum, the STA 152 / AP 150 may perform a clear channel assessment (CCA) to determine whether a channel is available prior to communication.

[0047] The small cell 102' may operate in licensed and / or unlicensed spectrum. When operating in an unlicensed spectrum, the small cell 102' may employ NR and use the same unlicensed spectrum (e.g., 5 GHz, etc.) as used by the Wi-Fi AP 150. The small cell 102' employing NR in the unlicensed spectrum may improve the coverage of the access network and / or increase the capacity of the access network.

[0048] The electromagnetic spectrum is typically subdivided into various categories, bands, channels, etc. based on frequency / wavelength. In 5G NR, two initial operating bands have been identified as frequency range designations FR1 (410 MHz-7.125 GHz) and FR2 (24.25 GHz-52.6 GHz). Frequencies between FR1 and FR2 are typically referred to as mid-band frequencies. Although a portion of FR1 is greater than 6 GHz, FR1 is typically (interchangeably) referred to as the "sub-6 GHz" band in various documents and articles. A similar naming issue sometimes occurs with respect to FR2, which is typically (interchangeably) referred to as the "millimeter wave" band in documents and articles, although different from the extremely high frequency (EHF) band (30 GHz-300 GHz) identified as the "millimeter wave" band by the International Telecommunication Union (ITU).

[0049] In view of the above aspects, unless otherwise specifically stated, it should be understood that if used in this article, the term "below 6 GHz" and the like can broadly represent frequencies that can be less than 6 GHz, can be within FR1, or can include mid-band frequencies. In addition, unless otherwise specifically stated, it should be understood that if the term "millimeter wave" and the like are used in this article, they can broadly represent frequencies that can include mid-band frequencies, can be within FR2, or can be within the EHF band.

[0050] The base station 102, whether a small cell 102' or a large cell (e.g., a macro base station), may include and / or be referred to as an eNB, a gNodeB (gNB), or another type of base station. Some base stations, such as gNB 180, may operate in the traditional sub-6 GHz spectrum, in millimeter wave frequencies, and / or near millimeter wave frequencies to communicate with the UE 104. When the gNB 180 operates in millimeter wave or near millimeter wave frequencies, the gNB 180 may be referred to as a millimeter wave base station. The millimeter wave base station 180 may utilize beamforming 182 with the UE 104 to compensate for path loss and short range. The base station 180 and the UE 104 may each include multiple antennas, such as antenna elements, antenna panels, and / or antenna arrays, to facilitate beamforming.

[0051] Base station 180 may send beamformed signals to UE 104 in one or more transmit directions 182'. UE 104 may receive beamformed signals from base station 180 in one or more receive directions 182". UE 104 may also send beamformed signals to base station 180 in one or more transmit directions. Base station 180 may receive beamformed signals from UE 104 in one or more receive directions. Base station 180 / UE 104 may perform beam training to determine the best receive direction and transmit direction for each of base station 180 / UE 104. The transmit direction and receive direction of base station 180 may be the same or different. The transmit direction and receive direction of UE 104 may be the same or different.

[0052] The EPC 160 may include a mobility management entity (MME) 162, other MMEs 164, a serving gateway 166, an MBMS gateway 168, a broadcast multicast service center (BM-SC) 170, and a packet data network (PDN) gateway 172. The MME 162 may communicate with a home subscriber server (HSS) 174. The MME 162 is a control node that handles signaling between the UE 104 and the EPC 160. Typically, the MME 162 provides bearer and connection management. All user Internet Protocol (IP) packets are transmitted through the serving gateway 166, which itself is connected to the PDN gateway 172. The PDN gateway 172 provides UE IP address allocation and other functions. The PDN gateway 172 and the BM-SC 170 are connected to IP services 176. The IP services 176 may include the Internet, an intranet, an IP multimedia subsystem (IMS), a PS streaming service, and / or other IP services. The BM-SC 170 may provide functions for MBMS user service configuration and delivery. BM-SC 170 may serve as an entry point for content provider MBMS delivery, may be used to authorize and initiate MBMS bearer services in a public land mobile network (PLMN), and may be used to schedule MBMS delivery. MBMS gateway 168 may be used to distribute MBMS services to base stations 102 belonging to a multicast broadcast single frequency network (MBSFN) area of ​​a broadcast specific service, and may be responsible for session management (start / stop) and for collecting eMBMS related billing information.

[0053] The core network 190 may include an access and mobility management function (AMF) 192, other AMFs 193, a session management function (SMF) 194, and a user plane function (UPF) 195. The AMF 192 may communicate with a unified data management (UDM) 196. The AMF 192 is a control node that handles signaling between the UE 104 and the core network 190. Typically, the AMF 192 provides quality of service (QoS) flows and session management. All user IP packets are delivered through the UPF 195. The UPF 195 provides UE IP address allocation and other functions. The UPF 195 is connected to an IP service 197. The IP service 197 may include the Internet, an intranet, an IMS, a packet switching (PS) streaming media service, and / or other IP services.

[0054] A base station may include and / or be referred to as a network entity, gNB, Node B, eNB, access point, transceiver base station, radio base station, radio transceiver, transceiver function, basic service set (BSS), extended service set (ESS), transmit receive point (TRP), or some other suitable term. Base station 102 provides an access point to EPC 160 or core network 190 for UE 104. 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, tablets, smart devices, wearable devices, vehicles, electric meters, gas pumps, large or small kitchen appliances, healthcare equipment, implants, sensors / actuators, displays, or any other similarly functional device. Some of UE 104 may be referred to as IoT devices (e.g., parking meters, gas pumps, ovens, vehicles, monitors, cameras, industrial / manufacturing equipment, appliances, vehicles, robots, drones, etc.). IoT UEs may include machine type communication (MTC) / enhanced MTC (eMTC, also known as Category (CAT)-M, Cat M1) UEs, NB-IoT (also known as CATNB1) UEs, and other types of UEs. In the present disclosure, eMTC and NB-IoT may refer to future technologies that may evolve from or be based on these technologies. For example, eMTC may include FeMTC (further eMTC), eFeMTC (enhanced further eMTC), mMTC (massive MTC), etc., and NB-IoT may include eNB-IoT (enhanced NB-IoT), FeNB-IoT (further enhanced NB-IoT), etc. UE 104 may also be referred to as a station, a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, or some other suitable terminology.

[0055] Although the present disclosure may focus on 5G NR, the concepts and aspects described herein may be applicable to other similar areas such as LTE, Advanced LTE (LTE-A), Code Division Multiple Access (CDMA), Global System for Mobile Communications (GSM), and / or other wireless / radio access technologies.

[0056] Figure 1B1 is a diagram illustrating an example of a decomposed base station 101 architecture, any component or element of which may be referred to herein as a network entity. The decomposed base station 101 architecture may include one or more central units (CUs) 103, which may communicate directly with a core network 105 via a backhaul link, or indirectly with the core network 105 through one or more decomposed base station units (such as a near real-time (near RT) RAN intelligent controller (RIC) 107 via an E2 link, or a non-real-time (non-RT) RIC 109 associated with a service management and orchestration (SMO) framework 111, or both). The CU 103 may communicate with one or more distributed units (DUs) 113 via corresponding midhaul links (such as an F1 interface). The DU 113 may communicate with one or more radio units (RUs) 115 via corresponding fronthaul links. The RU 115 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 115.

[0057] Each of the units (e.g., CU 103, DU 113, RU 115, and near-RT RIC 107, non-RT RIC 109, and SMO framework 111) may include or be coupled to one or more interfaces configured to receive or send signals, data, or information (collectively referred to as signals) via a wired or wireless transmission medium. Each of the units or an associated processor or controller that provides instructions to the communication interface of the unit may be configured to communicate with one or more of the other units via a transmission medium. For example, the units may include a wired interface configured to receive or send signals to one or more of the other units via a wired transmission medium. Additionally, the units may include a wireless interface that may include a receiver, a transmitter, or a transceiver (such as a radio frequency (RF) transceiver) configured to receive or send signals, or both, to one or more of the other units on a wireless transmission medium.

[0058] In some aspects, CU 103 may host one or more higher layer control functions. Such control functions may include radio resource control (RRC), packet data convergence protocol (PDCP), service data adaptation protocol (SDAP), etc. Each control function may be implemented using an interface configured to communicate signals with other control functions hosted by CU 103. CU 103 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 103 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 103 may be implemented to communicate with DU 113 for network control and signaling.

[0059] DU 113 may correspond to a logical unit that includes one or more base station functions for controlling the operation of one or more RU 115. In some aspects, DU 113 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.) depending at least in part on functional splits such as those defined by the Third Generation Partnership Project (3GPP). In some aspects, DU 113 may also 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 113 or with control functions hosted by CU 103.

[0060] The lower layer functionality may be implemented by one or more RUs 115. In some deployments, the RU 115 controlled by the DU 113 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, 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 115 may be implemented to handle over-the-air (OTA) communications with one or more UEs 104. In some specific implementations, real-time and non-real-time aspects of control plane and user plane communications with the RU 115 may be controlled by the corresponding DU 113. In some scenarios, this configuration may enable the implementation of the DU 113 and the CU 103 in a cloud-based RAN architecture (such as a vRAN architecture).

[0061] The SMO framework 111 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 111 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 111 may be configured to interact with a cloud computing platform (such as an open cloud (O-Cloud) 290) 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 103, DU 113, RU 115, and near-RT RIC 107. In some specific implementations, the SMO framework 111 may communicate with hardware aspects of the 4G RAN (such as an open eNB (O-eNB) 117) via the O1 interface. Additionally, in some specific implementations, the SMO framework 111 may communicate directly with one or more RUs 115 via the O1 interface. The SMO framework 111 may also include a non-RT RIC 109 configured to support the functionality of the SMO framework 111 .

[0062] The non-RT RIC 109 may be configured to include logic functions that enable non-real-time control and optimization of RAN elements and resources, artificial intelligence / machine learning (AI / ML) workflows including model training and updating, or policy-based guidance of applications / features in the near-RT RIC 107. The non-RT RIC 109 may be coupled to or in communication with the near-RT RIC 107 (such as via an A1 interface). The near-RT RIC 107 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 103, one or more DUs 113, or both, and the O-eNB with the near-RT RIC 107.

[0063] In some implementations, in order to generate an AI / ML model to be deployed in the near-RT RIC 107, the non-RT RIC 109 may receive parameters or external enrichment information from an external server. Such information may be utilized by the near-RT RIC 107 and may be received from a non-network data source or from a network function at the SMO framework 111 or the non-RT RIC 109. In some examples, the non-RT RIC 109 or the near-RT RIC 107 may be configured to tune RAN behavior or performance. For example, the non-RT RIC 109 may monitor long-term trends and patterns of performance and employ AI / ML models to perform corrective actions through the SMO framework 111 (such as via reconfiguration of O1) or via the creation of RAN management policies (such as A1 policies).

[0064] FIG. 2A to FIG. 2D is a diagram of various frame structures, resources, and channels used by UE 104 and base station 102 / 180 for communications. 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 an UL channel within a 5G NR subframe. The 5G NR frame structure may be frequency division duplex (FDD) (wherein for a particular set of subcarriers (carrier system bandwidth), a subframe within the subcarrier set is dedicated to either DL or UL), or may be time division duplex (TDD) (wherein for a particular set of subcarriers (carrier system bandwidth), a subframe within the subcarrier set is 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 34 (most of which are UL). Although subframes 3 and 4 are shown as having slot formats 34 and 28, respectively, any particular subframe may be configured with any of the various available slot formats 0 to 61. Slot formats 0 and 1 are both DL and both UL, respectively. Other slot formats 2-61 include a mix of DL, UL, and flexible symbols. The slot format is configured for the UE via a received slot format indicator (SFI) (dynamically configured via DL control information (DCI) or semi-statically / statically configured via radio resource control (RRC) signaling). Note that the following description also applies to the 5G NR frame structure as TDD.

[0065] Other wireless communication technologies may have different frame structures and / or different channels. For example, a 10 millisecond (ms) frame may be divided into 10 equally sized subframes (1 ms). 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 7 or 14 symbols, depending on the time slot configuration. For time slot configuration 0, each time slot may include 14 symbols, and for time slot configuration 1, each time slot may include 7 symbols. The symbol on the DL may be a cyclic prefix (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) spread 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 time slots in a subframe is based on the time slot configuration and parameter set (numerology). For slot configuration 0, different parameter sets μ0 to 4 allow 1, 2, 4, 8, and 16 slots per subframe, respectively. For slot configuration 1, different parameter sets 0 to 2 allow 2, 4, and 8 slots per subframe, respectively. Accordingly, for slot configuration 0 and parameter set μ, there are 14 symbols per slot and 2 per subframe. μ time slots. The subcarrier spacing and symbol length / duration are functions of the parameter set. The subcarrier spacing may be equal to 2μ*15 kilohertz (kHz), where μ is a parameter set 0 to 4. Thus, the subcarrier spacing for parameter set μ=0 is 15 kHz, and the subcarrier spacing for parameter set μ=4 is 240 kHz. The symbol length / duration is inversely related to the subcarrier spacing. FIG. 2A to FIG. 2D An example is provided for slot configuration 0 with 14 symbols per slot and parameter set μ=2 with 4 slots per subframe. The slot duration is 0.25 ms, the subcarrier spacing is 60 kHz, and the symbol duration is approximately 16.67 μs. Within a frame set, there may be one or more different bandwidth parts (BWPs) that are frequency-division multiplexed (see Figure 2B ). Each BWP can have a specific set of parameters.

[0066] A resource grid may be used to represent a 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 plurality 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) for channel estimation at the UE (indicated as R for a particular configuration).x , where 100x is the port number, but other DM-RS configurations are possible) and a channel state information reference signal (CSI-RS). 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. The physical downlink control channel (PDCCH) carries DCI within one or more control channel elements (CCEs), each CCE including nine RE groups (REGs), and each REG includes four consecutive REs in an OFDM symbol. The PDCCH within a BWP may be referred to as a control resource set (CORESET). Additional BWPs may be located at higher and / or lower frequencies on the channel bandwidth. The primary synchronization signal (PSS) may be within symbol 2 of a specific subframe of a frame. The PSS is used by UE 104 to determine subframe / symbol timing and physical layer identification. The secondary synchronization signal (SSS) may be within symbol 4 of a specific subframe of a frame. The SSS is used by the UE to determine the physical layer cell identification group number and radio frame timing. Based on the physical layer identification and the physical layer cell identification group number, the UE may determine the physical cell identifier (PCI). Based on the PCI, the UE may determine the position of the aforementioned 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 system frame number (SFN) and the number of RBs in the system bandwidth. The physical downlink shared channel (PDSCH) carries user data, broadcast system information not sent over the PBCH such as the system information block (SIB), and paging messages.

[0069] like Figure 2C As illustrated in , some of the REs carry DM-RSs for channel estimation at the base station (indicated as R for one specific configuration, but other DM-RS configurations are possible). 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) / negative acknowledgement (NACK) feedback. The PUSCH carries data and may additionally be used to carry buffer status reports (BSRs), power headroom reports (PHRs), and / or UCI.

[0071] Figure 3 1 is a block diagram of hardware components of base station 102 (and / or 180) in wireless communication system 100 in communication with UE 104. In the DL, IP packets from EPC 160 may be provided to controller / processor 375. 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 delivery 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 decoded and modulated symbols can then be divided into parallel streams. Subsequently, each stream can be mapped to an OFDM subcarrier, multiplexed with a reference signal (e.g., a pilot) in the time domain and / or frequency domain, and then combined using an inverse fast Fourier transform (IFFT) to produce a physical channel carrying a time domain OFDM symbol stream. The OFDM stream is spatially pre-coded to generate multiple spatial streams. Channel estimates from a channel estimator 374 may be used to determine the coding and modulation schemes, as well as for spatial processing. Channel estimates may be derived from reference signals and / or channel state feedback sent by the UE 104. Each spatial stream may then be provided to a different antenna 320 via a separate transmitter 318TX. Each transmitter 318TX may modulate an RF carrier with a corresponding spatial stream for transmission.

[0073] At the UE 104, 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 104. If multiple spatial streams are destined for the UE 104, 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 102. 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 the base station 102. The data and control signals are then provided to the 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 and logical channels, packet reassembly, decryption, header decompression, and control signal processing to recover IP packets from the EPC 160. The controller / processor 359 is also responsible for error detection using an ACK and / or NACK protocol to support HARQ operations.

[0075] Similar to the functionality described in conjunction with DL transmissions performed by the base station 102, 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] The TX processor 368 may use channel estimates derived by the channel estimator 358 from a reference signal or feedback sent by the base station 102 to select 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 corresponding 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 102 in a manner similar to that described in conjunction with the receiver functionality at the UE 104. 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 a 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 from the UE 104. The IP packets from the controller / processor 375 may be provided to the EPC 160. 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 1A For example, the memory 360 may include executable instructions that define the communication management component 198. The TX processor 368, the RX processor 356, and / or the controller / processor 359 may be configured to execute the communication management component 198.

[0080] Reference Figure 4A , the example dynamic scheduling of SBFD communication resource configuration 400 allows the base station to send a configuration message for scheduling the conversion or cancellation of one or more sub-bands (420, 422, 242) within one or more SBFD time slots (410, 412, 414). In particular, as described above, SBFD allows full-duplex communication by dividing the same time slot (e.g., SBFD time slot 410) into two or more of DL transmission 416, UL transmission 418, or flexible transmission (see Figure 4B ). The base station may divide the CC into UL bandwidth 418 and DL bandwidth 416 to improve cell edge coverage with minimal throughput loss relative to the baseline TDD macro. Thus, the UE may send UL 418 information (e.g., data or control information) to the base station in the same SBFD timeslot (e.g., 410, 412, 414) as the DL transmission 416 from the base station, rather than waiting for the next available UL transmission timeslot as in conventional half-duplex communications. In the case of carrier aggregation in unpaired spectrum, FDD may be applied across CCs or within CCs.

[0081] The ability to communicate via simultaneous DL 416 and UL 418 (or flexible) transmissions through dynamic scheduling allows for increased uplink duty cycle, thereby reducing latency (e.g., it is possible to receive DL signals in UL-only time slots, which can achieve latency savings) and improving uplink coverage. In addition, implementing flexible and dynamic UL and DL resource adaptation according to the techniques of the present disclosure also provides enhanced system capacity, resource utilization, and spectral efficiency.

[0082] To this end, the communication resource transmission scheme may include a first DL time slot 404, a second DL time slot 406, and a third DL time slot 408, wherein the entire bandwidth within the time slot is reserved for DL ​​communication 416 from the base station to the UE. Based on the initial SBFD resource configuration provided by the base station that allows both DL communication 416 and uplink communication 418 within the same time slot, the communication resource configuration may also include a first SBFD time slot 410, a second SBFD time slot 412, and a third SBFD time slot 414, such that at least a first portion 422 of the bandwidth within one or more SBFD time slots (410, 412, 414) can be allocated for uplink communication 418, and at least a second portion of the bandwidth within the SBFD time slot (e.g., 420 and 424) can be allocated for downlink communication 416. Therefore, as shown, different sub-bands within the same time slot can be allocated for different communications (e.g., UL or DL).

[0083] To provide dynamic UL or DL ​​sub-band switching or cancellation, aspects of the present disclosure provide techniques for using a downlink control information (DCI) configuration message to modify an initial SBFD resource configuration 426 allocated for communication between a base station and a UE to a modified SBFD resource configuration 428. For example, the initial SBFD resource configuration 426 may include dividing one or more of the first SBFD time slot 410, the second SBFD time slot 412, and / or the third SBFD time slot 414 into at least a first portion (420 and 424) of the bandwidth allocated for DL ​​transmission 416 and a second portion (422) of the bandwidth allocated for UL transmission 418. In other examples, the initial SBFD resource configuration may include dividing one or more of the first SBFD time slot 410, the second SBFD time slot 412, and / or the third SBFD time slot 414 into at least a first portion (420 and 424) of the bandwidth allocated for flexible SBFD transmission and a second portion of the bandwidth allocated for UL transmission 418, such as Figure 4B As discussed in more detail below, in FIG. 4C to FIG. 4H Additional or alternative examples of resource configuration are illustrated in .

[0084] Return to Figure 4AIn some examples, the base station may send a configuration message to the UE in one or more DL time slots (404, 406, 408) that modifies 402 an initial SBFD resource configuration 426 for a portion of a bandwidth for one or more of a first SBFD time slot 410, a second SBFD time slot 412, or a third SBFD time slot 414. The configuration message may be a DCI message sent at least N time slots before the first SBFD time slot 410 being modified, so as to allow the UE sufficient time to decode and process the DCI. In some examples, the N time slots may be two or more time slots before the first SBFD time slot 410 for which the sub-band configuration is to be modified.

[0085] The modification 402 of the initial SBFD resource configuration may include converting or canceling a previously scheduled UL or DL ​​communication scheduled within a sub-band of the SBFD time slot. For example, a sub-band 422 in one or more of the first SBFD time slot 410, the second SBFD time slot 412, or the third SBFD time slot 414 may be modified 402 from a previously scheduled UL communication 418 to a DL communication 416. Thus, the dynamic scheduling of sub-bands within the SBFD time slot 410 may include canceling or converting 402 an initial SBFD resource configuration 426 of one or more SBFD time slots to a modified SBFD resource configuration 428 based on a configuration message received at the UE from the base station.

[0086] The modified SBFD resource configuration 428 may modify at least one of a first portion (e.g., 422) of bandwidth within the first time slot originally allocated for uplink communication 418 or a second portion of bandwidth within the first SBFD time slot 410 originally allocated for downlink communication 416 in the initial SBFD resource configuration 426. The modified SBFD resource configuration 428 modifies the initial SBFD resource configuration 426 by canceling or converting the first portion 422 of bandwidth within the first time slot 410 originally allocated for uplink communication 418 to downlink sub-band communication 416, such that the entire first SBFD time slot 410 is modified for DL ​​communication 416. Similarly, the second SBFD time slot 412 or the third SBFD time slot 414 may also be modified, wherein the UL communication 418 previously scheduled for the sub-band 422 within each time slot may be canceled or converted to DL communication 416.

[0087] In other cases, such as Figure 4B, an initial SBFD configuration 426 for one or more of the first SBFD time slot 410, the second SBFD time slot 412, or the third SBFD time slot 414 may include a first portion (420 and 424) of a bandwidth allocated for a flexible SBFD transmission 430 and a second portion 422 of a bandwidth allocated for a UL transmission 418. The flexible SBFD transmission 430 may allow the UE to flexibly transmit the UL transmission 418 or receive the DL transmission 416 in a reserved sub-band based on the service. In this case, the DCI message sent in the first DL time slot 404 may modify 402 a portion of the bandwidth (e.g., the sub-band 422) for one or more of the first SBFD time slot 410, the second SBFD time slot 412, or the third SBFD time slot 414. The modification may include canceling or converting the originally scheduled UL transmission 418 in the second portion 422 of the bandwidth to a flexible SBFD transmission 430 so that the entire first SBFD time slot 410 (eg, the first and second portions of the bandwidth within the time slot) may be scheduled for the flexible SBFD transmission 430 .

[0088] Reference Figure 4C , another case 475 may modify the DL transmission 416 originally scheduled for the sub-band 422 within one or more of the first SBFD time slot 410, the second SBFD time slot 412, or the third SBFD time slot 414 to be a UL transmission 418 in the revised SBFD resource configuration 428. Thus, in this case, the revised SBFD resource configuration 428 includes canceling or converting the second portion 422 of the bandwidth within the first SBFD time slot 410 that was originally allocated for downlink communication 416 to uplink sub-band communication 418. For both the initial SBFD configuration and the revised SBFD configuration, the second portion (420 and 424) of the bandwidth within the first SBFD time slot 410 may continue to be allocated for downlink communication 418.

[0089] In another case, if Figure 4D As illustrated, the DCI message sent from the base station to the UE may modify the DL transmission 416 originally scheduled for the sub-band 422 within one or more of the first SBFD time slot 410, the second SBFD time slot 412, or the third SBFD time slot 414 to a flexible SBFD transmission 430 in the modified SBFD resource configuration 428. Thus, in this case, the modified SBFD resource configuration 428 includes canceling or converting the second portion 422 of the bandwidth within the first time slot originally allocated for downlink communication 416 to the flexible sub-band communication 430.

[0090] exist FIG. 4A to FIG. 4DIn some examples, the DCI configuration message sent from the base station to the UE may include or omit the scheduling assignment or group common DCI (e.g., DCI format 2_0 for SFI). As described above, the DCI message may be sent at least N time slots before the first SBFD time slot being modified to allow the UE sufficient time to decode and process the DCI. In some examples, the N time slots may be two or more time slots before the first SBFD time slot for which the subband configuration is to be modified. The DCI may be a DCI with or without scheduling data. For example, a new bit field may be added for the purpose of subband cancellation so that the base station can use the new bit field to identify the cancellation of the originally scheduled DL or UL (or flexible) subband. The new bit field in the DCI may also indicate whether the subband will be converted to DL communication 416, UL communication 418, or flexible subband communication 430 after cancellation. The DCI message may also indicate whether one or more guard bands between each SBFD time slot are cancelled, and if cancelled, indicate whether the guard band is converted to part of DL communication 416, UL communication 418, or flexible subband communication 430.

[0091] In some aspects, the DCI message may also indicate whether the cancellation / conversion is for the current SBFD time slot or for the next N SBFD time slots. Additionally or alternatively, the DCI message may also indicate a time slot mode (e.g., via a bitmap) that identifies the sub-bands and SBFD time slots that may be converted from the initial SBFD resource configuration to the modified SBFD resource configuration. In some aspects, the DCI message may also identify (e.g., via a sub-band identifier (ID)) the specific sub-band that the base station modified from the initial SBFD resource configuration to the modified SBFD resource configuration. However, in such a case, FIG. 4A to FIG. 4D In the scenario where a single subband is modified as in the case of , the DCI may not include the subband ID. However, if more than one subband or different portions of the bandwidth within the same SBFD are to be modified, the DCI message may include a specific subband ID identifying the subband that may be cancelled or converted to the modified SBFD resource configuration. After the modification or conversion / cancellation, such as FIG. 4A to FIG. 4D As illustrated in FIG. 4 for the modified SBFD resource configuration 428 , the SBFD symbols may be backed off to the entire frequency band, dedicated to one of the DL communications 416 , the UL communications 418 , or the flexible sub-band communications 430 .

[0092] In other cases, the base station may send a DCI configuration message that modifies one or more sub-bands within a SBFD time slot without converting the entire SBFD time slot to one of DL communication 416, UL communication 418, or flexible sub-band communication 430. For example, referring to Figure 4E, the DCI may indicate to the UE that one of the sub-bands 420 originally scheduled for DL ​​communications 416 is to be cancelled and converted for UL communications 418 in the modified SBFD resource configuration 428. In this case, the entire SBFD timeslot 410, 412, or 414 is not fully converted to UL communications 418. Instead, a portion of the bandwidth in the modified SBFD resource configuration 418 is allocated for both UL communications 418 and DL communications 416. However, by modifying a single sub-band 420 from DL communications 416 to UL communications 418, the modified SBFD resource configuration 428 includes a larger portion of the bandwidth allocated for UL communications 418 than the originally scheduled initial SBFD resource configuration 426 for the same SBFD timeslot.

[0093] Similarly, if Figure 4F , another example may include a DCI that modifies, in a modified SBFD resource configuration 428, one of the UL sub-bands originally scheduled for the first sub-band 420 in one or more of the first SBFD time slot 410, the second SBFD time slot 412, or the third SBFD time slot 414 for DL ​​communication 416. In this case, the DCI may indicate to the UE that one of the sub-bands 420 originally scheduled for UL communication 418 will be cancelled and converted to DL communication 416 or flexible sub-band communication 430 in the modified SBFD resource configuration 428. Again, in this case, the entire SBFD time slot 410, 412, or 414 is not fully converted to DL communication 416. Instead, a portion of the bandwidth in the modified SBFD resource configuration 418 is allocated for DL ​​communication 416, and the remainder of the SBFD time slot remains allocated for UL communication 418. However, by modifying the single sub-band 420 from UL communications 418 to DL communications 416, the revised SBFD resource configuration 428 includes a larger portion of the bandwidth allocated for DL ​​communications 416 than the originally scheduled initial SBFD resource configuration 426 for the same SBFD timeslot.

[0094] In another example, if Figure 4GAs illustrated in FIG. 4 , the DCI message may cancel or convert more than one sub-band from an initial SBFD resource configuration 426 to a modified SBFD resource configuration 428. In this case, the first sub-band 420 and the third sub-band 424 allocated for DL ​​communication 416 within the SBFD time slot (410, 412, or 414) may be converted for UL communication 418 based on the DCI message. However, the second sub-band 422 originally allocated for UL communication 418 may remain unchanged. To accomplish the conversion, the DCI message may include a bit field that identifies the sub-band ID associated with the first sub-band 420 and the third sub-band 424 within each SBFD time slot (410, 412, or 414) to be converted to UL or flexible sub-band communication.

[0095] And in other cases, such as Figure 4H , the DCI message may cancel or convert more than one sub-band originally reserved for UL communication 418 in the initial SBFD resource configuration 426 to DL communication 416 for the revised SBFD resource configuration 428. In this case, the first sub-band 420 and the third sub-band 424 allocated for UL communication 418 within the SBFD time slot (410, 412, or 414) may be converted for DL ​​communication 416 based on the DCI message. However, the second sub-band 422 originally allocated for DL ​​communication 416 may remain unchanged.

[0096] It should be understood by those skilled in the art that the present disclosure is not limited to 4A to 4H , where similar modifications to the initial SBFD resource configuration are made for each of the first SBFD time slot 410, the second SBFD time slot 412, and the third SBFD time slot 414. In fact, one of ordinary skill in the art will recognize that different SBFD time slots (410, 412, and 414, etc.) may be modified individually, such that the modified SBFD configuration for the first SBFD time slot 410 is different from the modified SBFD configuration for the second SBFD time slot 412, etc. For example, in some scenarios, the DCI message may modify the UL communication 418 for one sub-band (e.g., 420) in the first SBFD time slot 410 to a DL communication 416. However, for the second SBFD time slot 412, the DCI message may cancel and convert the DL communication 416 to a UL communication 418. Therefore, the present disclosure may implement different combinations of modifications based on a single or multiple DCI configuration messages.

[0097] In addition, for FIG. 4E to FIG. 4FIn the scenario illustrated in FIG. 1 where multiple sub-bands (e.g., first sub-band 420 and third sub-band 424) are cancelled and modified, the DCI message may include information related to the sub-band IDs that will be converted from the initial SBFD resource configuration to the modified SBFD resource configuration. The sub-band IDs may be pre-configured or configured based on the portion of the bandwidth associated with each sub-band (e.g., sub-bands 1, 2, 3, etc.) used for each SBFD timeslot. However, if Figures 4G to 4H If the entire SBFD timeslot is converted as illustrated, the DCI message may omit the subband ID. In other cases, the base station may determine whether to include the subband ID. Finally, if the modification indication is semi-static, the MAC-CE may be used for cancellation and conversion, and the information added in the DCI may be included for the MAC-CE.

[0098] Figure 5 The hardware components and subcomponents of a device (which may be a UE 104) for implementing one or more methods (eg, method 600) described herein according to various aspects of the present disclosure are illustrated. The UE 104 may be a reference Figure 1A and Figure 3 Example of the disclosed UE 104. For example, one example of a specific implementation of the UE 104 may include various components, some of which have been described above, in addition to including components such as: one or more processors 512, memory 516, and transceiver 502 communicating via one or more buses 544, which can operate in conjunction with the communication management component 198 to perform the functions described herein in connection with one or more methods (e.g., 600) including the present disclosure.

[0099] In particular, the communication management component 198 may include a receiving component 520 for receiving a configuration message from a base station at the UE 104 that modifies an initial SBFD resource configuration allocated for communication between the base station and the UE. In some examples, the initial SBFD resource configuration may allow both downlink communication and uplink communication on a sub-band basis within the same time slot, such that at least a first portion of the bandwidth within a first time slot is allocated for uplink communication, and at least a second portion of the bandwidth within the first time slot is allocated for downlink communication.

[0100] The communication management component 198 may also include an SBFD scheduling component 525 configured to communicate with the base station on the modified SBFD resource configuration based on the configuration message received from the base station. In some examples, the modified SBFD resource configuration modifies at least one of a first portion of the bandwidth in the first time slot originally allocated for uplink communication or a second portion of the bandwidth in the first time slot originally allocated for downlink communication in the initial SBFD resource configuration.

[0101] The one or more processors 512, modem 514, memory 516, transceiver 502, RF front end 588 and one or more antennas 565 may be configured to support voice and / or data calls (simultaneously or non-simultaneously) in one or more wireless access technologies. In one aspect, the one or more processors 512 may include a modem 514 using one or more modem processors. Various functions associated with the communication management component 198 may be included in the modem 514 and / or processor 512, and in one aspect, may be performed by a single processor, while in other aspects, different functions of these functions may be performed by a combination of two or more different processors. For example, in one aspect, the one or more processors 512 may include any one or any combination of a modem processor, or a baseband processor, or a digital signal processor, or a transmit processor, or a receiver processor, or a transceiver processor associated with the transceiver 502. In other aspects, some of the features of the one or more processors 512 and / or modem 514 associated with the communication management component 198 may be performed by the transceiver 502.

[0102] The memory 516 may be configured to store data used herein and / or a local version of the application 575 executed by at least one processor 512 or one or more of the communication management component 198 and / or its subcomponents. The memory 516 may include any type of computer-readable medium usable by a computer or at least one processor 512, such as random access memory (RAM), read-only memory (ROM), tape, disk, optical disk, volatile memory, non-volatile memory, and any combination thereof. In one aspect, for example, when the UE 104 is operating at least one processor 512 to execute the communication management component 198 and / or one or more of its subcomponents, the memory 516 may be a non-transitory computer-readable storage medium that stores one or more computer-executable codes defining the communication management component 198 and / or one or more of its subcomponents and / or data associated therewith.

[0103] The transceiver 502 may include at least one receiver 506 and at least one transmitter 508. The receiver 506 may include hardware, firmware, and / or software code executable by a processor for receiving data, the code including instructions and stored in a memory (e.g., a computer-readable medium). The receiver 506 may be, for example, a radio frequency (RF) receiver. In one aspect, the receiver 506 may receive a signal transmitted by at least one UE 104. In addition, the receiver 506 may process such received signals and may also obtain measurements of the signal, such as, but not limited to, Ec / Io, SNR, RSRP, RSSI, etc. The transmitter 508 may include hardware, firmware, and / or software code executable by a processor for transmitting data, the code including instructions and stored in a memory (e.g., a computer-readable medium). Suitable examples of the transmitter 508 may include, but are not limited to, an RF transmitter.

[0104] Moreover, in an aspect, the transmitting device may include an RF front end 588 that may operate in communication with the one or more antennas 565 and the transceiver 502 to receive and transmit radio transmissions, such as wireless communications transmitted by at least one base station 102 or wireless transmissions transmitted by the UE 104. The RF front end 588 may be connected to the one or more antennas 565 and may include one or more low noise amplifiers (LNAs) 590, one or more switches 592, one or more power amplifiers (PAs) 598, and one or more filters 596 for transmitting and receiving RF signals.

[0105] In one aspect, the LNA 590 can amplify the received signal at a desired output level. In one aspect, each LNA 590 can have a specified minimum gain value and a maximum gain value. In one aspect, the RF front end 588 can use one or more switches 592 to select a specific LNA 590 and its specified gain value based on the desired gain value for a particular application.

[0106] In addition, for example, the RF front end 588 can use one or more PAs 598 to amplify the signal for RF output at a desired output power level. In one aspect, each PA 598 can have a specified minimum gain value and a maximum gain value. In one aspect, the RF front end 588 can use one or more switches 592 to select a particular PA 598 and its specified gain value based on the desired gain value for a particular application.

[0107] In addition, for example, the RF front end 458 can use one or more filters 596 to filter the received signal to obtain an input RF signal. Similarly, in one aspect, for example, the output from the corresponding PA 598 can be filtered using a corresponding filter 596 to produce an output signal for transmission. In one aspect, each filter 496 can be connected to a specific LNA 590 and / or PA 598. In one aspect, the RF front end 588 can use one or more switches 592 to select a transmit path or a receive path using a specified filter 596, LNA 590, and / or PA 598 based on the configuration as specified by the transceiver 502 and / or the processor 512.

[0108] Thus, the transceiver 502 can be configured to transmit and receive wireless signals through one or more antennas 565 via the RF front end 588. In one aspect, the transceiver 502 can be tuned to operate at a specified frequency so that a transmitting device can communicate, for example, with one or more base stations 102 or one or more cells associated with one or more base stations 102 or other UEs 104. In one aspect, the modem 514 can configure the transceiver 502 to operate at a specified frequency and power level based on the configuration of the transmitting device and the communication protocol used by the modem 514, for example.

[0109] In one aspect, the modem 514 can be a multi-band multi-mode modem that can process digital signals and communicate with the transceiver 502 so that the transceiver 502 is used to transmit and receive digital data. In one aspect, the modem 514 can be multi-band and can be configured to support multiple frequency bands for a specific communication protocol. In one aspect, the modem 514 can be multi-mode and configured to support multiple operating networks and communication protocols. In one aspect, the modem 514 can control one or more components of the transmitting device (e.g., RF front end 588, transceiver 502) to achieve signal transmission and / or reception with the network based on the specified modem configuration. In one aspect, the modem configuration can be based on the mode of the modem 514 and the frequency band in use. In another aspect, the modem configuration can be based on UE configuration information associated with the transmitting device, such as provided by the network during cell selection and / or cell reselection.

[0110] Reference Figure 6 , an example method 600 for wireless communication according to aspects of the present disclosure may be referred to as Figure 1A , Figure 3 and Figure 5 The discussed one or more UEs 104 are performed. Although the method 600 is described below with respect to elements of a UE 104, other components may be used to implement one or more of the steps described herein.

[0111] At block 605, method 600 may include receiving, at a UE, a configuration message from a base station that modifies an initial SBFD resource configuration allocated for communication between the base station and the UE. In some examples, the initial SBFD resource configuration allows both downlink communication and uplink communication on a sub-band basis within the same time slot, such that at least a first portion of the bandwidth within a first time slot is allocated for uplink communication, and at least a second portion of the bandwidth within the first time slot is allocated for downlink communication. The configuration message may be received as part of downlink control information (DCI).

[0112] In some examples, the DCI may include one or more bit fields that identify a subband within the first time slot that is canceled or converted to one of uplink communication, downlink communication, or flexible subband communication. The DCI may also identify whether the initial SBFD resource configuration is modified to a revised SBFD resource configuration for the current time slot or a time slot that is N time slots after the configuration message is received at the UE. If the configuration message that modifies the initial SBFD resource configuration to the revised SBFD resource configuration is semi-static, the information for modifying the initial SBFD resource configuration may be provided to the UE via a medium access control (MAC) control element.

[0113] In some aspects, antenna 564 can receive signals transmitted from a base station that are processed by RF front end 588 and transceiver 502. The signals can be forwarded to modem 514 and processor 512. In some aspects, communication management component 198 in conjunction with receiving component 520 (which can be part of modem 514) can decode the received signal to identify a configuration message received from a base station.

[0114] In certain implementations, the processor 512, the modem 544, the communication management component 198, the receiving component 520 in conjunction with the transceiver 502 and / or one or more other components or subcomponents of the UE 104 may be configured to receive a configuration message from a base station at the UE and / or may define a component for receiving a configuration message from a base station at the UE that modifies an initial SBFD resource configuration allocated for communication between the base station and the UE.

[0115] At box 610, method 600 may include communicating with the base station on a modified SBFD resource configuration based on a configuration message received from the base station, wherein the modified SBFD resource configuration modifies at least one of a first portion of the bandwidth in the first time slot originally allocated for uplink communication or a second portion of the bandwidth in the first time slot originally allocated for downlink communication in the initial SBFD resource configuration.

[0116] In some aspects, communicating with a base station may include sending an UL message from a UE to a base station or receiving a DL transmission from a base station to a UE. To facilitate communication, an SBFD scheduling component 525 as part of a modem 514 may identify resources allocated for UL or DL ​​communication within each sub-band of an SBFD time slot. Based on the determination, the modem 514 may generate a message that is converted by the transceiver 502 into an UL signal and routed to the base station via one or more antennas 565. Conversely, to receive a DL signal, the SBFD scheduling component 525 may identify resources allocated for DL ​​communication within each sub-band of an SBFD time slot in order to determine when the UE expects to receive DL communication. Signals detected by one or more antennas 565 may be processed by the RF front end 588, the transceiver 502 and forwarded to the processor 512 and the modem 514.

[0117] In certain implementations, the processor 512, the modem 544, the communication management component 198, the receiving component 520, in conjunction with the transceiver 502 and / or one or more other components or subcomponents of the UE 104, may be configured to communicate with a base station and / or may define components for communicating with a base station, where communicating with a base station may include sending an UL message from the UE to the base station or receiving a DL transmission from the base station to the UE.

[0118] In some examples, modifying the revised SBFD resource configuration of the initial SBFD resource configuration may include canceling or converting the first portion of the bandwidth in the first time slot originally allocated for the uplink communication to downlink sub-band communication. In another example, modifying the revised SBFD resource configuration of the initial SBFD resource configuration may include canceling or converting the first portion of the bandwidth in the first time slot originally allocated for the uplink communication to flexible sub-band communication. In yet another example, modifying the revised SBFD resource configuration of the initial SBFD resource configuration may include canceling or converting the second portion of the bandwidth in the first time slot originally allocated for the downlink communication to uplink sub-band communication. In yet another example, modifying the revised SBFD resource configuration of the initial SBFD resource configuration may include canceling or converting the second portion of the bandwidth in the first time slot originally allocated for the downlink communication to flexible sub-band communication.

[0119] The first portion of the bandwidth within the first time slot initially allocated for the uplink communication may include a first sub-band and a second sub-band both allocated for the uplink communication, the first sub-band being associated with a first sub-band identification (ID) and the second sub-band being associated with a second sub-band ID. To this end, the configuration message received from the base station to modify the initial SBFD resource configuration to the revised SBFD resource configuration may identify one of the first sub-band ID or the second sub-band ID that is canceled or converted from the initial allocation for the uplink communication to the downlink sub-band communication. The configuration message received from the base station may also modify both of the first sub-band ID and the second sub-band ID from the initial allocation for the uplink communication to the downlink sub-band communication.

[0120] In some examples, the second portion of the bandwidth within the first time slot initially allocated for the downlink communication may include a first sub-band and a second sub-band both allocated for the downlink communication. The first sub-band may be associated with a first sub-band ID, and the second sub-band may be associated with a second sub-band ID. In some examples, the configuration message received from the base station to modify the initial SBFD resource configuration to the revised SBFD resource configuration may identify one of the first sub-band ID or the second sub-band ID that is canceled or converted from the initial allocation for downlink communication to uplink sub-band communication. The configuration message received from the base station may modify both the first sub-band ID and the second sub-band ID from the initial allocation for downlink communication to downlink sub-band communication.

[0121] In some examples, the configuration message from the base station to modify the initial SBFD resource configuration is received at least N time slots before the resource being modified to allow the UE to decode the configuration message. In some examples, N can be two or more time slots before the resource or time slot being modified.

[0122] The configuration message may also include a bit field for indicating whether a guard band associated with the first portion of the bandwidth within the first time slot allocated for the uplink communication or a guard band associated with the second portion of the bandwidth within the first time slot allocated for the uplink communication is modified as part of the modified SBFD resource configuration. In some examples, the configuration message received from the base station to modify the initial SBFD resource configuration to the modified SBFD resource configuration may identify a subband ID within the first portion of the bandwidth or the second portion of the bandwidth that is modified as part of the modified SBFD resource configuration.

[0123] Some further example clauses

[0124] Specific implementation examples are described in the following numbered clauses:

[0125] 1. A method for wireless communication, the method comprising:

[0126] receiving, at a user equipment (UE) from a base station, a configuration message that modifies an initial sub-band full-duplex (SBFD) resource configuration allocated for communications between the base station and the UE, wherein the initial SBFD resource configuration allows both downlink and uplink communications on a sub-band basis within the same time slot such that at least a first portion of the bandwidth within a first time slot is allocated for uplink communications and at least a second portion of the bandwidth within the first time slot is allocated for downlink communications; and

[0127] Communicate with the base station on a modified SBFD resource configuration based on the configuration message received from the base station, wherein the modified SBFD resource configuration modifies at least one of the first portion of the bandwidth within the first time slot originally allocated for the uplink communication or the second portion of the bandwidth within the first time slot originally allocated for the downlink communication in the initial SBFD resource configuration.

[0128] 2. The method of clause 1, wherein modifying the revised SBFD resource configuration of the initial SBFD resource configuration comprises eliminating or converting the first portion of the bandwidth within the first time slot originally allocated for the uplink communication to downlink sub-band communication.

[0129] 3. A method according to any one of the preceding clauses 1 to 2, wherein the modified SBFD resource configuration that modifies the initial SBFD resource configuration comprises canceling or converting the first portion of the bandwidth within the first time slot originally allocated for the uplink communication to flexible sub-band communication.

[0130] 4. A method according to any one of the preceding clauses 1 to 3, wherein the modified SBFD resource configuration that modifies the initial SBFD resource configuration comprises canceling or converting the second portion of the bandwidth within the first time slot originally allocated for the downlink communication to uplink sub-band communication.

[0131] 5. A method according to any one of the preceding clauses 1 to 4, wherein modifying the revised SBFD resource configuration of the initial SBFD resource configuration comprises canceling or converting the second portion of the bandwidth within the first time slot originally allocated for the downlink communication to flexible sub-band communication.

[0132] 6. A method according to any one of the preceding clauses 1 to 5, wherein the first portion of the bandwidth within the first time slot initially allocated for the uplink communication includes a first sub-band and a second sub-band both allocated for the uplink communication, the first sub-band being associated with a first sub-band identifier (ID) and the second sub-band being associated with a second sub-band ID.

[0133] 7. A method according to any one of the preceding clauses 1 to 6, wherein the configuration message received from the base station to modify the initial SBFD resource configuration to the revised SBFD resource configuration identifies one of the first sub-band ID or the second sub-band ID that is canceled or converted from the original allocation for the uplink communication to the downlink sub-band communication.

[0134] 8. A method according to any of the preceding clauses 1 to 7, wherein the configuration message received from the base station modifies both of the first sub-band ID and the second sub-band ID from an initial allocation for uplink communications to downlink sub-band communications.

[0135] 9. A method according to any one of the preceding clauses 1 to 8, wherein the second portion of the bandwidth within the first time slot initially allocated for the downlink communication comprises a first sub-band and a second sub-band both allocated for the downlink communication, the first sub-band being associated with a first sub-band identifier (ID) and the second sub-band being associated with a second sub-band ID.

[0136] 10. A method according to any one of the preceding clauses 1 to 9, wherein the configuration message received from the base station to modify the initial SBFD resource configuration to the revised SBFD resource configuration identifies one of the first sub-band ID or the second sub-band ID that is canceled or converted from the original allocation for downlink communication to uplink sub-band communication.

[0137] 11. A method according to any of the preceding clauses 1 to 10, wherein the configuration message received from the base station modifies both of the first sub-band ID and the second sub-band ID from an initial allocation for downlink communication to downlink sub-band communication.

[0138] 12. A method according to any of the preceding clauses 1 to 11, wherein the configuration message from the base station to modify the initial SBFD resource configuration is received at least N time slots before the resources being modified so as to allow the UE to decode the configuration message.

[0139] 13. A method according to any one of the preceding clauses 1 to 12, wherein the configuration message includes a bit field for indicating whether a guard band associated with the first portion of the bandwidth within the first time slot allocated for the uplink communication or a guard band associated with the second portion of the bandwidth within the first time slot allocated for the uplink communication is modified as part of the modified SBFD resource configuration.

[0140] 14. A method according to any one of the preceding clauses 1 to 13, wherein the configuration message received from the base station to modify the initial SBFD resource configuration to the modified SBFD resource configuration identifies a sub-band identifier (ID) within the first part of the bandwidth or the second part of the bandwidth that is modified as part of the modified SBFD resource configuration.

[0141] 15. A method according to any preceding clauses 1 to 14, wherein the configuration message is received as part of downlink control information.

[0142] 16. A method according to any one of the preceding clauses 1 to 15, wherein the DCI comprises one or more bit fields, the one or more bit fields identifying a sub-band within the first time slot that is canceled or converted to one of uplink communication, downlink communication or flexible sub-band communication.

[0143] 17. A method according to any one of the preceding clauses 1 to 16, wherein the DCI identifies whether the initial SBFD resource configuration is modified to the revised SBFD resource configuration for a current time slot or a time slot that is N time slots after the configuration message is received at the UE.

[0144] 18. A method according to any one of the preceding clauses 1 to 17, wherein the configuration message for modifying the initial SBFD resource configuration to the revised SBFD resource configuration is semi-static, and the information for modifying the initial SBFD resource configuration is provided to the UE via a medium access control (MAC) control element.

[0145] 19. An apparatus for wireless communication by a user equipment, the apparatus comprising:

[0146] Memory; and

[0147] a processor coupled to the memory and configured to:

[0148] receiving, at a user equipment (UE) from a base station, a configuration message that modifies an initial sub-band full-duplex (SBFD) resource configuration allocated for communications between the base station and the UE, wherein the initial SBFD resource configuration allows both downlink and uplink communications on a sub-band basis within the same time slot such that at least a first portion of the bandwidth within a first time slot is allocated for uplink communications and at least a second portion of the bandwidth within the first time slot is allocated for downlink communications; and

[0149] Communicate with the base station on a modified SBFD resource configuration based on the configuration message received from the base station, wherein the modified SBFD resource configuration modifies at least one of the first portion of the bandwidth within the first time slot originally allocated for the uplink communication or the second portion of the bandwidth within the first time slot originally allocated for the downlink communication in the initial SBFD resource configuration.

[0150] 20. A non-transitory computer readable medium storing instructions executable by a processor for wireless communication, the non-transitory computer readable medium comprising instructions for:

[0151] receiving, at a user equipment (UE) from a base station, a configuration message that modifies an initial sub-band full-duplex (SBFD) resource configuration allocated for communications between the base station and the UE, wherein the initial SBFD resource configuration allows both downlink and uplink communications on a sub-band basis within the same time slot such that at least a first portion of the bandwidth within a first time slot is allocated for uplink communications and at least a second portion of the bandwidth within the first time slot is allocated for downlink communications; and

[0152] Communicate with the base station on a modified SBFD resource configuration based on the configuration message received from the base station, wherein the modified SBFD resource configuration modifies at least one of the first portion of the bandwidth within the first time slot originally allocated for the uplink communication or the second portion of the bandwidth within the first time slot originally allocated for the downlink communication in the initial SBFD resource configuration.

[0153] Although the foregoing disclosure discusses illustrative aspects and / or embodiments, it should be noted that various changes and modifications may be made herein without departing from the described aspects and / or embodiments as defined by the appended claims. Furthermore, although elements of the described aspects and / or embodiments are described or claimed in the singular, the plural is also contemplated unless limitation to the singular is explicitly stated. Additionally, all or part of any aspect and / or embodiment may be used with all or part of any other aspect and / or embodiment unless otherwise stated.

[0154] 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 can be rearranged based on design preferences. In addition, some blocks can be combined or omitted. The attached method claims provide the elements of each block in a sample order, but are not meant to be limited to the specific order or hierarchy provided.

[0155] 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 intended to be limited to the aspects shown herein, but to conform to the full scope consistent with the language claims, wherein the elements mentioned in the singular are not intended to represent "one and only one", unless specifically so stated, but "one or more". Terms such as "if", "when ..." and "while ..." should be interpreted as "under the conditions of ...", rather than meaning an instantaneous time relationship or reaction. That is, these phrases, such as "when ...", do not mean an instantaneous action in response to the occurrence of an action or during the occurrence of an action, but only mean that if the conditions are met, the action will occur without a specific or instantaneous time constraint to cause the action to occur. The word "exemplary" is used herein to mean "used as an example, instance, or illustration". Any aspect described as "exemplary" herein is not necessarily interpreted as being preferred or having an advantage over other aspects. Unless otherwise specified, the term "some" refers to one or more. Combinations such as “at least one of A, B, or C,” “one or more of A, B, or C,” “at least one of A, B and C,” “one or more of A, B, and C,” and “A, B, C, or any combination thereof” include any combination of A, B, and / or C, and 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 include one or more members of A, B, or C. All structural and functional equivalents to the elements of the various aspects described throughout the disclosure that are known or later become known to those of ordinary skill in the art are expressly incorporated herein by reference and are intended to be encompassed by the claims. Furthermore, nothing disclosed herein is intended to be dedicated to the public, regardless of whether such disclosure is explicitly recited in the claims. Words such as "module," "mechanism," "element," and "device" cannot replace the word "component." Therefore, no claim element will be construed as a component plus function unless the element is explicitly stated using the phrase "component for..."

Claims

1. A method for wireless communication, the method comprising: receiving, at a user equipment (UE) from a base station, a configuration message that modifies an initial sub-band full-duplex (SBFD) resource configuration allocated for communications between the base station and the UE, wherein the initial SBFD resource configuration allows both downlink and uplink communications on a sub-band basis within the same time slot such that at least a first portion of a bandwidth within a first time slot is allocated for uplink communications and at least a second portion of the bandwidth within the first time slot is allocated for downlink communications; as well as Communicate with the base station on a modified SBFD resource configuration based on the configuration message received from the base station, wherein the modified SBFD resource configuration modifies at least one of the first portion of the bandwidth within the first time slot originally allocated for the uplink communication or the second portion of the bandwidth within the first time slot originally allocated for the downlink communication in the initial SBFD resource configuration.

2. The method of claim 1, wherein modifying the revised SBFD resource configuration of the initial SBFD resource configuration comprises eliminating or converting the first portion of the bandwidth within the first time slot originally allocated for the uplink communication to downlink sub-band communication.

3. The method of claim 1, wherein modifying the revised SBFD resource configuration of the initial SBFD resource configuration comprises eliminating or converting the first portion of the bandwidth within the first time slot originally allocated for the uplink communication to flexible sub-band communication.

4. The method of claim 1, wherein modifying the revised SBFD resource configuration of the initial SBFD resource configuration comprises eliminating or converting the second portion of the bandwidth within the first time slot originally allocated for the downlink communication to uplink sub-band communication.

5. The method of claim 1, wherein modifying the revised SBFD resource configuration of the initial SBFD resource configuration comprises eliminating or converting the second portion of the bandwidth within the first time slot originally allocated for the downlink communication to flexible sub-band communication.

6. The method of claim 1, wherein the first portion of the bandwidth within the first time slot initially allocated for the uplink communication comprises a first sub-band and a second sub-band both allocated for the uplink communication, the first sub-band being associated with a first sub-band identification (ID) and the second sub-band being associated with a second sub-band ID.

7. The method of claim 6, wherein the configuration message received from the base station to modify the initial SBFD resource configuration to the revised SBFD resource configuration identifies one of the first sub-band ID or the second sub-band ID that is canceled or converted from the original allocation for the uplink communication to the downlink sub-band communication.

8. The method of claim 6, wherein the configuration message received from the base station modifies both of the first sub-band ID and the second sub-band ID from an original assignment of the uplink communication to a downlink sub-band communication.

9. The method of claim 1, wherein the second portion of the bandwidth within the first time slot initially allocated for the downlink communication comprises a first sub-band and a second sub-band both allocated for the downlink communication, the first sub-band being associated with a first sub-band identification (ID) and the second sub-band being associated with a second sub-band ID.

10. The method of claim 9, wherein the configuration message received from the base station to modify the initial SBFD resource configuration to the revised SBFD resource configuration identifies one of the first sub-band ID or the second sub-band ID that is cancelled or converted from an initial allocation for downlink communication to uplink sub-band communication.

11. The method of claim 9, wherein the configuration message received from the base station modifies both of the first sub-band ID and the second sub-band ID from an initial assignment for the downlink communication to a downlink sub-band communication.

12. The method of claim 1, wherein the configuration message from the base station to modify the initial SBFD resource configuration is received at least N time slots prior to the resources being modified to allow the UE to decode the configuration message.

13. The method of claim 1 , wherein the configuration message includes a bit field for indicating whether a guard band associated with the first portion of the bandwidth within the first time slot allocated for the uplink communication or a guard band associated with the second portion of the bandwidth within the first time slot allocated for the uplink communication is modified as part of the modified SBFD resource configuration.

14. The method of claim 1, wherein the configuration message received from the base station to modify the initial SBFD resource configuration to the modified SBFD resource configuration identifies a sub-band identifier (ID) within the first portion of the bandwidth or the second portion of the bandwidth that is modified as part of the modified SBFD resource configuration.

15. The method of claim 1, wherein the configuration message is received as part of downlink control information (DCI).

16. The method of claim 15, wherein the DCI comprises one or more bit fields identifying a sub-band within the first time slot that is cancelled or converted to one of uplink communication, downlink communication, or flexible sub-band communication. 17 . The method according to claim 15 , wherein the DCI identifies whether the initial SBFD resource configuration is modified to the revised SBFD resource configuration for a current time slot or a time slot that is N time slots after the configuration message is received at the UE.

18. The method of claim 1, wherein the configuration message for modifying the initial SBFD resource configuration to the revised SBFD resource configuration is semi-static, and information for modifying the initial SBFD resource configuration is provided to the UE via a medium access control (MAC) control element.

19. An apparatus for wireless communication by a user equipment, the apparatus comprising: Memory; and a processor coupled to the memory and configured to: receiving, at a user equipment (UE) from a base station, a configuration message that modifies an initial sub-band full-duplex (SBFD) resource configuration allocated for communications between the base station and the UE, wherein the initial SBFD resource configuration allows both downlink and uplink communications on a sub-band basis within the same time slot such that at least a first portion of a bandwidth within a first time slot is allocated for uplink communications and at least a second portion of the bandwidth within the first time slot is allocated for downlink communications; as well as Communicate with the base station on a modified SBFD resource configuration based on the configuration message received from the base station, wherein the modified SBFD resource configuration modifies at least one of the first portion of the bandwidth within the first time slot originally allocated for the uplink communication or the second portion of the bandwidth within the first time slot originally allocated for the downlink communication in the initial SBFD resource configuration.

20. A non-transitory computer readable medium storing instructions executable by a processor for wireless communication, the non-transitory computer readable medium comprising instructions for: receiving, at a user equipment (UE) from a base station, a configuration message that modifies an initial sub-band full-duplex (SBFD) resource configuration allocated for communications between the base station and the UE, wherein the initial SBFD resource configuration allows both downlink and uplink communications on a sub-band basis within the same time slot such that at least a first portion of a bandwidth within a first time slot is allocated for uplink communications and at least a second portion of the bandwidth within the first time slot is allocated for downlink communications; and Communicate with the base station on a modified SBFD resource configuration based on the configuration message received from the base station, wherein the modified SBFD resource configuration modifies at least one of the first portion of the bandwidth within the first time slot originally allocated for the uplink communication or the second portion of the bandwidth within the first time slot originally allocated for the downlink communication in the initial SBFD resource configuration.

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