Transmission scheme for carrier aggregation with partially overlapping spectrum

Abstract

Wireless communication systems, apparatuses, and methods are provided. A method of wireless communication performed by a user equipment (UE) may include transmitting a first communication in a first frequency band, and receiving a second communication in a second frequency band, where a portion of the second frequency band partially overlaps the first frequency band, and the first communication is time-multiplexed with the second communication in the portion of the second frequency band that partially overlaps the first frequency band.

Description

Technical Field

[0001] The present application relates to wireless communication systems, and more particularly, to a transmission scheme for carrier aggregation with partially overlapping spectrum. Background Art

[0002] Wireless communication systems are widely deployed to provide various types of communication content, such as voice, video, packet data, messaging, broadcast, etc. These systems may be capable of supporting communication with multiple users by sharing available system resources (e.g., time, frequency, and power). A wireless multiple-access communication system may include multiple base stations (BSs), each of which simultaneously supports communication for multiple communication devices, which may be otherwise referred to as user equipment (UE).

[0003] In order to meet the growing demand for extended mobile broadband connectivity, wireless communication technology is evolving from LTE technology to next-generation new radio (NR) technology. For example, compared to LTE, NR is designed to provide lower latency, higher bandwidth or throughput, and higher reliability. NR is designed to operate on a wide spectrum band array, for example, from low bands below about 1 gigahertz (GHz) and mid-bands from about 1 GHz to about 6 GHz to high bands such as millimeter wave (mmWave) bands. NR is also designed to operate across different spectrum types, from licensed spectrum to unlicensed spectrum and shared spectrum. Spectrum sharing enables operators to have the opportunity to aggregate spectrum to dynamically support high-bandwidth services. Spectrum sharing can extend the benefits of NR technology to operating entities that may not have access to licensed spectrum.

[0004] NR can support various deployment scenarios to benefit from various spectrums in different frequency ranges, licensed and / or unlicensed, and / or coexistence of LTE and NR technologies. For example, NR can be deployed in standalone NR mode on licensed and / or unlicensed bands, or in dual connectivity mode with various combinations of NR and LTE on licensed and / or unlicensed bands.

[0005] In a wireless communication network, a BS can communicate with a UE in both the uplink and downlink directions. Sidelinks were introduced in LTE to allow a UE to transmit data to another UE (e.g., from one vehicle to another vehicle) without tunneling through the BS and / or associated core network. LTE sidelink technology has been extended to provide device-to-device (D2D) communications, vehicle-to-everything (V2X) communications, and / or cellular vehicle-to-everything (C-V2X) communications. Similarly, NR can be extended to support sidelink communications, D2D communications, V2X communications, and / or C-V2X on licensed and / or unlicensed bands (e.g., shared bands). Summary of the invention

[0006] The following summarizes some aspects of the present disclosure to provide a basic understanding of the technology discussed. This summary is not an exhaustive overview of all the expected features of the present disclosure, and is neither intended to identify the key or important elements of all aspects of the present disclosure, nor to delineate the scope of any or all aspects of the present disclosure. The sole purpose of this summary is to present some concepts of one or more aspects of the present disclosure in a summarized form as a prelude to more specific embodiments presented later.

[0007] In one aspect of the present disclosure, a method of wireless communication performed by a user equipment (UE) may include: sending a first communication in a first frequency band, and receiving a second communication in a second frequency band, wherein a portion of the second frequency band partially overlaps with the first frequency band, and the first communication is time-division multiplexed with the second communication in the portion of the second frequency band that partially overlaps with the first frequency band.

[0008] In additional aspects of the present disclosure, a method of wireless communication performed by a network unit may include: sending a first communication in a first frequency band, and receiving a second communication in a second frequency band, wherein a portion of the second frequency band partially overlaps with the first frequency band, and the first communication is time-division multiplexed with the second communication in the portion of the second frequency band that partially overlaps with the first frequency band.

[0009] In additional aspects of the present disclosure, a user equipment (UE) may include: a memory; a transceiver; and at least one processor coupled to the memory and the transceiver, wherein the UE is configured to: send a first communication in a first frequency band, and receive a second communication in a second frequency band, wherein a portion of the second frequency band partially overlaps with the first frequency band, and the first communication is time-division multiplexed with the second communication in the portion of the second frequency band that partially overlaps with the first frequency band.

[0010] In additional aspects of the present disclosure, a network unit may include: a memory; a transceiver; and at least one processor coupled to the memory and the transceiver, wherein the network unit is configured to: send a first communication in a first frequency band, and receive a second communication in a second frequency band, wherein a portion of the second frequency band partially overlaps with the first frequency band, and the first communication is time-division multiplexed with the second communication in the portion of the second frequency band that partially overlaps with the first frequency band.

[0011] After reading the description of the specific exemplary embodiments of the present invention below in conjunction with the accompanying drawings, other aspects, features and examples of the present invention will become apparent to those of ordinary skill in the art. Although the features of the present invention may be discussed below with respect to certain aspects and drawings, all examples of the present invention may include one or more of the advantageous features discussed herein. In other words, although one or more examples may be discussed as having certain advantageous features, one or more of such features may also be used according to the various examples of the present invention discussed herein. In a similar manner, although the exemplary aspects may be discussed below as device, system or method examples, it should be understood that such exemplary examples may be implemented in various devices, systems and methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 A wireless communication network according to some aspects of the present disclosure is illustrated.

[0013] Figure 2 An example disaggregated base station architecture is illustrated in accordance with some aspects of the present disclosure.

[0014] Figure 3 An example of partially overlapping frequency spectra in accordance with some aspects of the present disclosure is illustrated.

[0015] Figure 4 An example of time division multiplexing of resources in overlapping spectrums according to some aspects of the present disclosure is illustrated.

[0016] Figure 5 is a signaling diagram of a wireless communication method according to some aspects of the present disclosure.

[0017] Figure 6 is a block diagram of an exemplary user equipment (UE) according to some aspects of the present disclosure.

[0018] Figure 7 is a block diagram of an exemplary network element according to some aspects of the present disclosure.

[0019] Figure 8 is a flow chart of a communication method according to some aspects of the present disclosure.

[0020] Fig. 9 is a flow chart of a communication method according to some aspects of the present disclosure. DETAILED DESCRIPTION

[0021] The detailed description set forth below in conjunction with the accompanying drawings is intended as a description of various configurations and is not intended to represent the only configurations in which the concepts described herein may be practiced. In order to provide a comprehensive understanding of the various concepts, the detailed description includes specific details. However, it is apparent to those skilled in the art that these concepts may be practiced without these specific details. In some instances, in order to avoid obscuring such concepts, well-known structures and components are shown in block diagram form.

[0022] The present disclosure as a whole relates to wireless communication systems, which are also referred to as wireless communication networks. In various instances, techniques and devices can be used for wireless communication networks, such as code division multiple access (CDMA) networks, time division multiple access (TDMA) networks, frequency division multiple access (FDMA) networks, orthogonal FDMA (OFDMA) networks, single carrier FDMA (SC-FDMA) networks, LTE networks, GSM networks, 5th generation (5G) or new radio (NR) networks, and other communication networks. As described herein, the terms "network" and "system" can be used interchangeably.

[0023] OFDMA network can realize radio technology such as Evolved UTRA (E-UTRA), Institute of Electrical and Electronics Engineers (IEEE) 802.11, IEEE 802.16, IEEE 802.20, flash-OFDM, etc. UTRA, E-UTRA and Global System for Mobile Communications (GSM) are parts of Universal Mobile Telecommunications System (UMTS). Specifically, Long Term Evolution (LTE) is a UMTS version using E-UTRA. UTRA, E-UTRA, GSM, UMTS and LTE are described in documents provided by an organization named "3rd Generation Partnership Project" (3GPP), and cdma2000 is described in documents from an organization named "3rd Generation Partnership Project 2" (3GPP2). These various radio technologies and standards are known or under development. For example, the 3rd Generation Partnership Project (3GPP) is a collaboration between telecommunication association groups with the goal of defining a globally applicable third generation (3G) mobile phone specification. 3GPP Long Term Evolution (LTE) is a 3GPP plan to improve the Universal Mobile Telecommunications System (UMTS) mobile phone standard. 3GPP may define specifications for next generation mobile networks, mobile systems, and mobile devices. The present disclosure relates to the evolution from LTE, 4G, 5G, NR and beyond wireless technologies, where access to the wireless spectrum is shared between networks using a range of new and different radio access technologies or radio air interfaces.

[0024] Specifically, 5G networks consider various deployments, various spectrums, and various services and devices that can be implemented using a unified air interface based on OFDM. To achieve these goals, in addition to developing new radio technologies for 5G NR networks, further enhancements to LTE and LTE-A are also considered. 5G NR will be able to scale to (1) ultra-high density (e.g., about 1M nodes / km) 2 (1) provide coverage for the massive Internet of Things (IoT) with ultra-low complexity (e.g., on the order of tens of bits / second), ultra-low energy (e.g., on the order of 10+ years of battery life), and deep coverage with the ability to reach challenging locations; (2) provide coverage including mission-critical control with strong security to protect sensitive personal, financial, or classified information, ultra-high reliability (e.g., on the order of 99.9999% reliability), ultra-low latency (e.g., on the order of 1 millisecond), and for users with extensive mobility or lack of mobility; and (3) provide coverage with enhanced mobile broadband (including extremely high capacity (e.g., on the order of 10 Tbps / km 2 ), extremely high data rates (e.g., multi-Gbps rates, 100+Mbps user experience rates), and deep awareness coverage with advanced discovery and optimization.

[0025] 5G NR can be implemented using an optimized OFDM-based waveform with scalable parameter sets and transmission time intervals (TTIs); with a common, flexible framework to efficiently multiplex services and features using dynamic low-latency time division duplex (TDD) / frequency division duplex (FDD) designs; and with advanced wireless technologies such as massive multiple-input multiple-output (MIMO), robust millimeter wave (mmWave) transmission, advanced channel decoding, and device-centric mobility. The scalability of parameter sets in 5G NR and the scaling of subcarrier spacing can efficiently address various services operating across different spectrums and different deployments. For example, in various outdoor and macro coverage deployments of less than 3GHz FDD / TDD implementations, the subcarrier spacing may appear at 15kHz on bandwidths (BW) such as 5MHz, 10MHz, 20MHz, etc. For other various outdoor and small cell coverage deployments of TDD greater than 3GHz, the subcarrier spacing may appear at 30kHz on 80MHz / 100MHz BW. For various other indoor broadband implementations, using TDD on the unlicensed portion of the 5 GHz band, subcarrier spacing may occur at 60 kHz over 160 MHz BW. Finally, for various deployments transmitting with the mmWave component at 28 GHz TDD, subcarrier spacing may occur at 120 kHz over 500 MHz BW.

[0026] 5G NR's scalable parameter sets facilitate scalable TTIs for different latency and quality of service (QoS) requirements. For example, shorter TTIs can be used for low latency and high reliability, while longer TTIs can be used for higher spectral efficiency. Efficient multiplexing of long and short TTIs allows transmission to start on symbol boundaries. 5G NR also envisions a self-contained integrated subframe design with uplink / downlink scheduling information, data, and acknowledgment in the same subframe. The self-contained integrated subframe supports communications in unlicensed spectrum or contention-based shared spectrum, adaptive uplink / downlink, which can be flexibly configured on a per-cell basis to dynamically switch between uplink and downlink to meet current business needs.

[0027] The various other aspects and features of the present disclosure are further described below. It should be apparent that the teachings herein can be embodied in various forms, and any specific structure, function, or both disclosed herein are merely representative and not restrictive. Based on the teachings herein, it should be understood by those of ordinary skill in the art that the aspects disclosed herein can be implemented independently of any other aspects, and two or more of these aspects can be combined in various ways. For example, any number of aspects set forth herein can be used to implement a device or practice a method. In addition, such a device can be implemented or such a method can be practiced using other structures, functionality, or structures and functionality other than or different from one or more of the aspects set forth herein. For example, the method can be implemented as a part of a system, device, device, and / or as instructions stored on a computer-readable medium for execution on a processor or computer. In addition, one aspect can include at least one element of a claim.

[0028] Deploying NR on unlicensed spectrum is called NR unlicensed (NR-U). The Federal Communications Commission (FCC) and the European Telecommunications Standards Institute (ETSI) are working to regulate 6 GHz as a new unlicensed band for wireless communications. The addition of the 6 GHz band allows hundreds of megahertz (MHz) of bandwidth (BW) to be used for unlicensed band communications. Additionally, NR-U can also be deployed on the 2.4 GHz unlicensed band, which is currently shared by various radio access technologies (RATs) such as IEEE 802.11 wireless local area networks (WLANs) or WiFi and / or license assisted access (LAA). Sidelink communications can benefit from utilizing the additional bandwidth available in unlicensed spectrum. However, channel access in a specific unlicensed spectrum can be managed by official agencies. For example, some unlicensed bands may impose restrictions on the power spectral density (PSD) and / or minimum occupied channel bandwidth (OCB) of transmissions in unlicensed bands. For example, the unlicensed national information infrastructure (UNII) radio band has a minimum OCB requirement of about at least 70%.

[0029] Some sidelink systems may operate on a 20 MHz bandwidth in an unlicensed band, e.g., for listen-before-talk (LBT) based channel access. The BS may configure a sidelink resource pool for sidelink communications on one or more 20 MHz LBT sub-bands. The sidelink resource pool is typically allocated with a plurality of frequency subchannels within a sidelink bandwidth part (SL-BWP), and the sidelink UE may select a sidelink resource (e.g., one or more subchannels in frequency and one or more time slots in time) for sidelink communications from the sidelink resource pool.

[0030] The deployment of a communication system (such as a 5G New Radio (NR) system) can be arranged with various components or constituent parts in a variety of ways. In a 5G NR system or network, a network node, a network entity, a mobility element of a network, a radio access network (RAN) node, a core network node, a network element or a network equipment (such as a base station (BS), or one or more units (or one or more components) that perform base station functionality can be implemented in an aggregated architecture or a decomposed architecture. For example, a BS (such as a Node B (NB), an evolved NB (eNB), an NR BS, a 5G NB, an access point (AP), a transmit receive point (TRP) or a cell, etc.) can be implemented as an aggregated base station (also referred to as an independent BS or a monolithic BS) or a decomposed base station.

[0031] A converged base station may be configured to utilize a radio protocol stack physically or logically integrated within a single RAN node. A decomposed base station may be configured to utilize a protocol stack physically or logically distributed between two or more units, such as one or more central or centralized units (CUs), one or more distributed units (DUs), or one or more radio units (RUs). In some aspects, a CU may be implemented within a RAN node, and one or more DUs may be co-located with the CU, or alternatively, may be geographically or virtually distributed in one or more other RAN nodes. A DU may be implemented to communicate with one or more RUs. Each of a CU, a DU, and a RU may also be implemented as a virtual unit, i.e., a virtual central unit (VCU), a virtual distributed unit (VDU), or a virtual radio unit (VRU).

[0032] Base station type operations or network designs may take into account the aggregated nature of base station functionality. For example, a disaggregated base station may be used in an integrated access backhaul (IAB) network, an open radio access network (O-RAN (network configurations such as those initiated by the O-RAN Alliance)), or a virtualized radio access network (vRAN, also known as a cloud radio access network (C-RAN)). Decomposition may include distributing functionality across two or more units at various physical locations, as well as virtually distributing functionality of at least one unit, which may enable flexibility in network design. Individual units of a disaggregated base station or disaggregated RAN architecture may be configured for wired or wireless communication with at least one other unit.

[0033] Figure 1 A wireless communication network 100 according to some aspects of the present disclosure is illustrated. The network 100 includes multiple base stations (BSs) 105 and other network entities. The BSs 105 may be stations that communicate with the UEs 115 and may also be referred to as evolved Node Bs (eNBs), next generation eNBs (gNBs), access points, etc. Each BS 105 may provide communication coverage for a particular geographic area. In 3GPP, the term "cell" may refer to that particular geographic coverage area of ​​the BS 105 and / or a BS subsystem serving that coverage area, depending on the context in which the term is used.

[0034] BS105 may provide communication coverage for macro cells or small cells (such as pico cells or femto cells) and / or other types of cells. Macro cells generally cover a relatively large geographic area (e.g., several kilometers in radius) and may allow unrestricted access by UEs with service subscriptions with a network provider. Small cells (such as pico cells) will generally cover a relatively small geographic area and may allow unrestricted access by UEs with service subscriptions with a network provider. Small cells (such as femto cells) will generally also cover a relatively small geographic area (e.g., a home) and, in addition to unrestricted access, may also provide restricted access by UEs associated with the femto cells (e.g., UEs in a closed subscriber group (CSG), UEs of users in a home, etc.). A BS for a macro cell may be referred to as a macro BS. A BS for a small cell may be referred to as a small cell BS, a pico BS, a femto BS, or a home BS. In Figure 1In the example shown, BS105d and 105e may be conventional macro BSs, while BS105a-105c may be macro BSs with one of three-dimensional (3D), full-dimensional (FD) or massive MIMO capabilities. BS105a-105c may utilize its higher-dimensional MIMO capabilities to employ 3D beamforming in both elevation and azimuth beamforming to increase coverage and capacity. BS105f may be a small cell BS, which may be a home node or a portable access point. BS105 may support one or more (e.g., two, three, four, etc.) cells.

[0035] Network 100 may support synchronous operation or asynchronous operation. For synchronous operation, the BSs may have similar frame timing, and transmissions from different BSs may be approximately aligned in time. For asynchronous operation, the BSs may have different frame timing, and transmissions from different BSs may not be aligned in time.

[0036] UE 115 is dispersed throughout the wireless network 100, and each UE 115 can be stationary or mobile. UE 115 may also be referred to as a terminal, a mobile station, a subscriber unit, a station, etc. UE 115 may be a cellular phone, a personal digital assistant (PDA), a wireless modem, a wireless communication device, a handheld device, a tablet computer, a laptop computer, a cordless phone, a wireless local loop (WLL) station, etc. In one aspect, UE 115 may be a device including a universal integrated circuit card (UICC). On the other hand, UE may be a device that does not include a UICC. In some aspects, UE 115 that does not include a UICC may also be referred to as an IoT device or an Internet of Everything (IoE) device. UE 115a-115d is an example of a mobile smart phone type device that accesses the network 100. UE 115 may also be a machine that is specifically configured for connected communications (including machine type communications (MTC), enhanced MTC (eMTC), narrowband IoT (NB-IoT), etc.). UE 115e-115h are examples of various machines configured for communication to access network 100. UE 115i-115k are examples of vehicles equipped with wireless communication devices configured for communication to access network 100. UE 115 may be able to communicate with any type of BS, whether macro BS, small cell, etc. Figure 1 , a lightning symbol (e.g., a communication link) indicates wireless transmission between UE 115 and a serving BS 105 (which is a BS designated to provide service to UE 115 on a downlink (DL) and / or uplink (UL), desired transmission between BSs 105, backhaul transmission between BSs, or sidelink transmission between UE 115.

[0037] In operation, BSs 105a-105c may use 3D beamforming and cooperative spatial techniques such as coordinated multipoint (CoMP) or multiple connectivity to serve UEs 115a and 115b. Macro BS 105d may perform backhaul communications with BSs 105a-105c and small cell BS 105f. Macro BS 105d may also transmit multicast services that UEs 115c and 115d subscribe to and receive. Such multicast services may include mobile TV or streaming video, or may include other services for providing community information, such as weather emergencies or alerts, such as Amber alerts or gray alerts.

[0038] The BS 105 may also communicate with a core network. The core network may provide user authentication, access authorization, tracking, Internet Protocol (IP) connectivity, and other access, routing, or mobility functions. At least some BSs 105 (e.g., the BS may be an example of an evolved Node B (eNB) or an access node controller (ANC)) may interface with the core network 130 via a backhaul link (e.g., S1, S2, etc.), and may perform radio configuration and scheduling to communicate with the UE 115. In various examples, the BSs 105 may communicate with each other directly or indirectly (e.g., through the core network) over a backhaul link (e.g., X1, X2, etc.), which may be a wired or wireless communication link.

[0039] The network 100 may also support mission-critical communications with ultra-reliable and redundant links for mission-critical devices such as UE 115e, which may be a vehicle (e.g., a car, truck, bus, autonomous vehicle, airplane, ship, etc.). The redundant communication links with UE 115e may include links from macro BSs 105d and 105e, and a link from a small cell BS 105f. Other machine-type devices such as UE 115f (e.g., a thermometer), UE 115g (e.g., a smart meter), and UE 115h (e.g., a wearable device) may communicate directly with a BS (such as small cell BS 105f and macro BS 105e) through the network 100, or in a multi-hop configuration by communicating with another user device that relays its information to the network (such as UE 115f communicating temperature measurement information to smart meter UE 115g, which is then reported to the network through small cell BS 105f). In some aspects, the UE 115h may harvest energy from the surrounding environment associated with the UE 115h. The network 100 may also provide additional network efficiency through dynamic, low-latency TDD / FDD communications such as vehicle-to-vehicle (V2V) communications between the UE 115i, 115j, or 115k and other UEs 115, vehicle-to-everything (V2X) communications, cellular vehicle-to-everything (C-V2X) communications, and / or vehicle-to-infrastructure (V2I) communications between the UE 115i, 115j, or 115k and the BS 105.

[0040] In some implementations, the network 100 utilizes an OFDM-based waveform for communication. An OFDM-based system may divide the system BW into multiple (K) orthogonal subcarriers, which are also commonly referred to as subcarriers, tones, frequency bins, etc. Each subcarrier may be modulated with data. In some instances, the subcarrier spacing between adjacent subcarriers may be fixed, and the total number of subcarriers (K) may depend on the system BW. The system BW may also be divided into subbands. In other instances, the subcarrier spacing and / or the duration of the TTI may be scalable.

[0041] In some instances, BS105 may assign or schedule transmission resources (e.g., in the form of time-frequency resource blocks (RBs)) for downlink (DL) transmission and uplink (UL) transmission in network 100. DL refers to the transmission direction from BS105 to UE 115, and UL refers to the transmission direction from UE 115 to BS105. The communication may be in the form of a radio frame. The radio frame may be divided into a plurality of subframes, such as about 10. Each subframe may be divided into time slots, such as about 2. Each time slot may also be divided into micro-time slots. In FDD mode, simultaneous UL transmission and DL transmission may occur in different frequency bands. For example, each subframe includes a UL subframe in a UL frequency band and a DL subframe in a DL frequency band. In TDD mode, UL transmission and DL transmission occur in different time periods using the same frequency band. For example, a subframe subset (e.g., a DL subframe) in a radio frame may be used for DL ​​transmission, and another subframe subset (e.g., a UL subframe) in a radio frame may be used for UL transmission.

[0042] DL subframes and UL subframes may also be divided into several zones. For example, each DL subframe or UL subframe may have a predefined zone for the transmission of reference signals, control information, and data. A reference signal is a predetermined signal that facilitates communication between BS105 and UE 115. For example, a reference signal may have a specific pilot pattern or structure, wherein a pilot tone may span an operational BW or frequency band, and each pilot tone may be positioned at a predefined time and a predefined frequency. For example, BS105 may send a cell-specific reference signal (CRS) and / or a channel state information-reference signal (CSI-RS) to enable UE 115 to estimate a DL channel. Similarly, UE 115 may send a sounding reference signal (SRS) to enable BS105 to estimate an UL channel. Control information may include resource assignments and protocol control. Data may include protocol data and / or operational data. In some instances, BS105 and UE 115 may communicate using a self-contained subframe. A self-contained subframe may include a portion for DL ​​communication and a portion for UL communication. A self-contained subframe may be DL-centric or UL-centric. A DL-centric subframe may include a DL communication duration that is longer than a UL communication duration. A UL-centric subframe may include a UL communication duration that is longer than a UL communication duration.

[0043] In some instances, network 100 may be an NR network deployed on a licensed spectrum. BS 105 may send synchronization signals (e.g., including a primary synchronization signal (PSS) and a secondary synchronization signal (SSS)) in network 100 to facilitate synchronization. BS 105 may broadcast system information associated with network 100 (e.g., including a master information block (MIB), remaining minimum system information (RMSI), and other system information (OSI)) to facilitate initial network access. In some instances, BS 105 may broadcast PSS, SSS, and / or MIB in the form of a synchronization signal block (SSB) on a physical broadcast channel (PBCH), and may broadcast RMSI and / or OSI on a physical downlink shared channel (PDSCH).

[0044] In some examples, a UE 115 attempting to access the network 100 may perform an initial cell search by detecting the PSS from the BS 105. The PSS may enable synchronization of period timing and may indicate a physical layer identity value. The UE 115 may then receive the SSS. The SSS may enable radio frame synchronization and may provide a cell identity value that may be combined with the physical layer identity value to identify the cell. The SSS may also enable detection of duplex mode and cyclic prefix length. The PSS and SSS may be located in the center portion of the carrier or at any suitable frequency within the carrier.

[0045] After receiving the PSS and SSS, the UE 115 may receive the MIB. The MIB may include system information for initial network access and scheduling information for RMSI and / or OSI. After decoding the MIB, the UE 115 may receive the RMSI and / or OSI. The RMSI and / or OSI may include radio resource control (RRC) information related to random access channel (RACH) procedures, paging, control resource sets (CORESET) for physical downlink control channel (PDCCH) monitoring, physical uplink control channel (PUCCH), physical uplink shared channel (PUSCH), power control, SRS, and cell barring.

[0046] After obtaining the MIB, RMSI, and / or OSI, the UE 115 may perform a random access procedure to establish a connection with the BS 105. For the random access procedure, the UE 115 may send a random access preamble, and the BS 105 may respond with a random access response. Upon receiving the random access response, the UE 115 may send a connection request to the BS 105, and the BS 105 may respond with a connection response (e.g., a contention resolution message).

[0047] After the connection is established, the UE 115 and the BS 105 may enter a normal operation phase in which operational data may be exchanged. For example, the BS 105 may schedule the UE 115 for UL communication and / or DL ​​communication. The BS 105 may send an UL scheduling grant and / or a DL scheduling grant to the UE 115 via the PDCCH. The BS 105 may send a DL communication signal to the UE 115 via the PDSCH according to the DL scheduling grant. The UE 115 may send an UL communication signal to the BS 105 via the PUSCH and / or the PUCCH according to the UL scheduling grant.

[0048] The network 100 may be designed to implement a wide range of use cases. Although in some examples, the network 100 may utilize a monolithic base station, there are a variety of other architectures that can be used to perform various aspects of the present disclosure. For example, BS105 may be separated into a remote radio head (RRH) and a baseband unit (BBU). The BBU may be concentrated in a BBU pool and connected to the RRH via a low latency and high bandwidth transmission link (such as an optical transmission link). The BBU pool may be a cloud-based resource. In some aspects, baseband processing is performed on a virtualized server running in a data center rather than co-located with the BS105. In another example, base station functionality may be split between a remote unit (RU), a distributed unit (DU), and a central unit (CU). The RU typically performs low physical layer functions, while the DU performs higher layer functions, which may include higher physical layer functions. The CU performs higher RAN functions, such as radio resource control (RRC).

[0049] For simplicity of discussion, the present disclosure refers to the methods of the present disclosure being performed by a base station or more generally by a network entity, while the functionality may be performed by various architectures other than a monolithic base station. In addition to a disaggregated base station, various aspects of the present disclosure may also be performed by a centralized unit (CU), a distributed unit (DU), a radio unit (RU), a near real-time (near RT) RAN intelligent controller (RIC), a non-real-time (non-RT) RIC, an integrated access and backhaul (IAB) node, a relay node, a sidelink node, etc.

[0050] In some aspects, UE 115 may send a first communication to BS 105 in a first frequency band and receive a second communication from BS 105 in a second frequency band. In some aspects, a portion of the second frequency band may partially overlap with the first frequency band. In some aspects, the first communication is time division multiplexed with the second communication in a portion of the second frequency band that partially overlaps with the first frequency band.

[0051] Figure 2A diagram illustrating an example decomposed base station 200 architecture is shown. The decomposed base station 200 architecture may include one or more central units (CUs) 210 that may communicate directly with a core network 220 via a backhaul link, or indirectly with the core network 220 through one or more decomposed base station units, such as a near real-time (near-RT) RAN intelligent controller (RIC) 225 via an E2 link, or a non-real-time (non-RT) RIC 215 associated with a service management and orchestration (SMO) framework 205, or both. The CU 210 may communicate with one or more distributed units (DUs) 230 via respective midhaul links, such as an F1 interface. The DU 230 may communicate with one or more radio units (RUs) 240 via respective fronthaul links. The RU 240 may communicate with respective UEs 120 via one or more radio frequency (RF) access links. In some implementations, a UE 120 may be served simultaneously by multiple RUs 240.

[0052] Each of the units (i.e., CU 210, DU 230, RU 240, and near-RT RIC 225, non-RT RIC 215, and SMO framework 205) may include or be coupled to one or more interfaces configured to receive or send signals, data, or information (collectively, signals) via a wired or wireless transmission medium. Each of the units or an associated processor or controller that provides instructions to the communication interface of these units may be configured to communicate with one or more of the other units via a transmission medium. For example, these units may include a wired interface configured to receive or send signals to one or more of the other units via a wired transmission medium. Additionally, these units may include a wireless interface that may include a receiver, transmitter, or transceiver (such as a radio frequency (RF) transceiver) that is configured to receive or send signals, or both, to one or more of the other units on a wireless transmission medium.

[0053] In some aspects, CU 210 may host one or more higher layer control functions. Such control functions may include radio resource control (RRC), packet data convergence protocol (PDCP), service data adaptation protocol (SDAP), etc. Each control function may be implemented using an interface that is configured to communicate signals with other control functions hosted by CU 210. CU 210 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 210 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 210 may be implemented to communicate with DU 230 for network control and signaling.

[0054] DU 230 may correspond to a logical unit that includes one or more base station functions for controlling the operation of one or more RUs 240. In some aspects, DU 230 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 230 may further host one or more low PHY layers. Each layer (or module) may be implemented using an interface that is configured to communicate signals with other layers (and modules) hosted by DU 230 or with control functions hosted by CU 210.

[0055] The lower layer functionality may be implemented by one or more RUs 240. In some deployments, the RU 240 controlled by the DU 230 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 a functional split (such as a lower layer functional split). In such an architecture, the RU 240 may be implemented to handle over-the-air (OTA) communications with one or more UEs 120. In some implementations, real-time and non-real-time aspects of control plane and user plane communications with the RU 240 may be controlled by the corresponding DU 230. In some scenarios, this configuration may enable the DU 230 and CU 210 to be implemented in a cloud-based RAN architecture (such as a vRAN architecture).

[0056] The SMO framework 205 may be configured to support RAN deployment and configuration of non-virtualized network elements and virtualized network elements. For non-virtualized network elements, the SMO framework 205 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 205 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 210, DU 230, RU 240, and near-RT RIC 225. In some specific implementations, the SMO framework 205 may communicate with hardware aspects of the 4G RAN such as an open eNB (O-eNB) 211 via the O1 interface. Additionally, in some specific implementations, the SMO framework 205 may communicate directly with one or more RUs 240 via the O1 interface. The SMO framework 205 may also include a non-RT RIC 215 configured to support the functionality of the SMO framework 205 .

[0057] The non-RT RIC 215 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 225. The non-RT RIC 215 may be coupled to or in communication with the near-RT RIC 225 (such as via an A1 interface). The near-RT RIC 225 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 210, one or more DUs 230, or both, and the O-eNB with the near-RT RIC 225.

[0058] In some implementations, in order to generate an AI / ML model to be deployed in the near-RT RIC 225, the non-RT RIC 215 may receive parameters or external enrichment information from an external server. Such information may be utilized by the near-RT RIC 225 and may be received from a non-network data source or from a network function at the SMO framework 205 or the non-RT RIC 215. In some examples, the non-RT RIC 215 or the near-RT RIC 225 may be configured to tune RAN behavior or performance. For example, the non-RT RIC 215 may monitor long-term trends and patterns of performance and employ AI / ML models to perform corrective actions through the SMO framework 205 (such as via reconfiguration of O1) or via the creation of RAN management policies (such as A1 policies).

[0059] In some aspects, UE 120 may send a first communication to RU 240 in a first frequency band and receive a second communication from RU 240 in a second frequency band. In some aspects, a portion of the second frequency band may partially overlap with the first frequency band. In some aspects, the first communication is time division multiplexed with the second communication in a portion of the second frequency band that partially overlaps with the first frequency band.

[0060] Figure 3 An example of partially overlapping spectrum according to some aspects of the present disclosure is illustrated. In some aspects, a UE (e.g., UE 115, UE 120, or UE 600) may send a first communication in a frequency band 314 (e.g., an uplink frequency band). In some aspects, the UE may send a first communication to a network unit (e.g., BS 105, RU 240, DU 230, CU 210, and / or network unit 700) in frequency band 314. The first communication may include, but is not limited to, a sounding reference signal (SRS), a physical uplink shared channel (PUSCH) communication, a physical uplink control channel (PUCCH) communication, a physical random access channel (PRACH) communication, and / or other communications. In some aspects, frequency band 314 may include a frequency range, a spectrum, a frequency interleave, a bandwidth portion, a channel, and / or a subchannel. The first frequency band may be a licensed and / or unlicensed (e.g., shared) frequency band.

[0061] In some aspects, the UE (e.g., UE 115, UE 120, or UE 600) may receive a second communication in a frequency band 310 (e.g., a downlink frequency band). In some aspects, the UE may receive a second communication from a network unit (e.g., BS 105, RU 240, DU 230, CU 210, and / or network unit 700) in the frequency band 310. The second communication may include, but is not limited to, a channel state information reference signal (CSI-RS), a physical downlink shared channel (PDSCH) communication, a physical downlink control channel (PDCCH) communication, a synchronization signal block (SSB), downlink control information (DCI), a demodulation reference signal (DMRS), and / or other communications. In some aspects, the frequency band 310 may include a frequency range, a spectrum, a frequency interlace, a bandwidth portion, a channel, and / or a subchannel. The frequency band 310 may be a licensed and / or unlicensed (e.g., shared) frequency band.

[0062] In some aspects, frequency band 314 may overlap (e.g., partially overlap) at least a portion of frequency band 310. In other words, a certain frequency range in overlapping frequency band 312 may be common to both frequency band 310 and frequency band 314. In some aspects, the portions of the first frequency band and the second frequency band that overlap in frequency band 312 may include guard bands 320 and 322. Guard bands 320 and 322 may provide interference protection for transmissions in non-overlapping portions of frequency band 310 and frequency band 314. Guard bands 320 and 322 may include frequency ranges adjacent to one or both sides of overlapping frequency band 312. The width of guard bands 320 and 322 may be based on a certain number of subchannels and / or frequency ranges. In some aspects, the size of guard bands 320 and 322 may be based on the frequency range of frequency band 310 and / or frequency band 314. In some aspects, the size of guard bands 320 and 322 may be based on the size of overlapping frequency band 312. For example, a wider overlapping frequency band 312 may require wider guard bands 320 and / or 322 .

[0063] When a wireless communication device (e.g., UE 115 or network element 105) attempts to simultaneously transmit and receive signals in an overlapping frequency band 312, the transmitted signal may interfere with the received signal, resulting in degradation of the received signal and / or errors in processing and / or decoding the received signal. To overcome this limitation, some aspects of the present disclosure time-division multiplex the transmitted and received signals in the overlapping frequency band 312. For example, a UE may receive a resource grant from a network element that schedules resources to the UE to transmit communications in certain time frames (e.g., certain time slots and / or sub-time slots) and receive communications in certain other time frames (e.g., certain other time slots and / or sub-time slots). The resource grant may configure the UE to suppress the simultaneous transmission of a first communication and the reception of a second communication in the overlapping frequency band 312. In this regard, the resource grant may configure the UE with transmission resources and reception resources such that the transmission resources do not overlap in time with the reception resources, including not overlapping in time within the overlapping frequency band 312.

[0064] Additionally or alternatively, the resource grant may configure the UE to send the first communication in a non-overlapping frequency band 318 that does not overlap with the frequency band 310. In this regard, the resource grant may configure the UE to send certain communications (e.g., high priority uplink communications, such as UL control communications) in the non-overlapping frequency band 318 that does not overlap with the frequency band 310. For example, the resource grant may configure the UE to send a sounding reference signal (SRS), a physical uplink control channel (PUCCH) communication, and / or a physical random access channel (PRACH) in the non-overlapping frequency band 318.

[0065] Additionally or alternatively, the resource grant may configure the UE to receive the second communication in a non-overlapping frequency band 316 that does not overlap with the frequency band 314. In this regard, the resource grant may configure the UE to receive certain communications (e.g., high priority downlink communications, such as DL control communications) in the non-overlapping frequency band 316 that does not overlap with the frequency band 314. For example, the resource grant may configure the UE to receive CSI-RS, PDCCH communications, DCI, and / or DMRS in the non-overlapping frequency band 316.

[0066] In some aspects, the network element may prioritize scheduling uplink and downlink communications in non-overlapping frequency bands 316 and 318 in order to mitigate potential interference issues within overlapping frequency band 312. However, when non-overlapping frequency bands 316 and 318 do not have sufficient resources to carry uplink and downlink communications, overlapping frequency band 312 may be used based on a priority associated with the type of communication. For example, downlink communications may be prioritized over uplink communications. Within downlink communications, certain communications may be prioritized over other communications. For example, SSB and / or CSI-RS transmissions may be prioritized over PDSCH transmissions.

[0067] In uplink communications, the UE may send communications in the overlapping frequency band 312 based on a priority associated with the type of communication. For example, SRS may have a higher priority than PUSCH communications. In some aspects, the UE may have a transmit buffer that stores data to be sent via PUSCH communications. In the case of limited resources within the overlapping frequency band 312, the UE may prioritize the transmission of one or more SRS, other reference signals, and / or UL control information over the transmission of PUSCH communications. PUSCH communications may be sent at a later time (e.g., a later time slot or sub-time slot).

[0068] Figure 4 An example of time division multiplexing of resources in overlapping frequency bands 312 in accordance with some aspects of the present disclosure is illustrated. In some aspects, overlapping frequency bands 312 may be used on a time division multiplexing (TDM) basis when non-overlapping frequency bands 316 and 318 do not have sufficient resources to carry uplink and downlink communications. For example, a resource grant received by a UE from a network element may schedule a downlink communication 414 from the network element to the UE in a frequency band 310 including non-overlapping frequency band 316 and overlapping frequency band 312 during a time slot 410(1). The resource grant may also schedule another downlink communication 414 in non-overlapping frequency band 316 and an uplink communication 412 in overlapping frequency band 312 during a time slot 410(2). The resource grant may also schedule another downlink communication 414 in non-overlapping frequency band 316 and an uplink communication 412 in overlapping frequency band 312 during a time slot 410(3). The resource grant may also schedule another downlink communication 414 in overlapping frequency band 312 and an uplink communication 412 in non-overlapping frequency band 318 during time slot 410(4). The resource grant may also schedule an uplink communication 412 in overlapping frequency band 312 and an uplink communication 412 in non-overlapping frequency band 318 during time slot 410(5). The time period (e.g., time slot 410 or sub-time slot) may be as follows: Figure 4 The resource grant may indicate any TDM mode and / or any number of uplink communications 412 and downlink communications 414. The TDM mode may be based on a priority of the communication type. Additionally or alternatively, the UE may send a buffer status report (BSR) to the network element indicating the amount of data the UE expects to send to the network element. In some aspects, the network element may determine the TDM mode based at least in part on the BSR of the UE.

[0069] Figure 56 is a signaling diagram of a wireless communication method 500 according to some aspects of the present disclosure. The actions of the communication method 500 may be performed by a computing device (e.g., a processor, a processing circuit, and / or other suitable components) of a communication device or other suitable means for performing the actions. For example, a wireless communication device such as UE 115, UE 120, or UE 600 may utilize one or more components to perform various aspects of the method 500, such as a processor 602, a memory 604, a time division multiplexing module 608, a transceiver 610, a modem 612, and one or more antennas 616. For example, a wireless communication device such as BS 105 and / or a network unit 700 may utilize one or more components to perform various aspects of the method 500, such as a processor 702, a memory 704, a time division multiplexing module 708, a transceiver 710, a modem 712, and one or more antennas 716.

[0070] At action 502, UE 115 may receive a resource grant from network element 105. The resource grant may schedule resources for UE 115 to send communications in certain time frames (e.g., certain time slots and / or sub-time slots) and to receive communications in certain other time frames (e.g., certain other time slots and / or sub-time slots). The resource grant may configure UE 115 to refrain from simultaneously sending a first communication and receiving a second communication in a portion of a first frequency band that overlaps with a second frequency band. In this regard, the resource grant may configure UE 115 with transmit resources and receive resources such that the transmit resources do not overlap in time with the receive resources, including not overlapping in time within an overlapping portion of the first frequency band and the second frequency band.

[0071] Additionally or alternatively, the resource grant may configure the UE 115 to send the first communication in a portion of the first frequency band that does not overlap with the second frequency band. In this regard, the resource grant may configure the UE 115 to send certain communications (e.g., high priority uplink communications, such as UL control communications) in the portion of the first frequency band that does not overlap with the second frequency band. For example, the resource grant may configure the UE 115 to send a sounding reference signal (SRS), a physical uplink control channel (PUCCH) communication, and / or a physical random access channel (PRACH) in the portion of the first frequency band that does not overlap with the second frequency band.

[0072] Additionally or alternatively, the resource grant may configure the UE 115 to receive the second communication in a portion of the second frequency band that does not overlap with the first frequency band. In this regard, the resource grant may configure the UE 115 to receive certain communications (e.g., high priority downlink communications, such as DL control communications) in the portion of the second frequency band that does not overlap with the first frequency band. For example, the resource grant may configure the UE 115 to receive CSI-RS, PDCCH communications, DCI, and / or DMRS in the portion of the second frequency band that does not overlap with the first frequency band.

[0073] At action 504, UE 115 may determine a priority associated with the first communication. In some aspects, UE 115 may prioritize scheduling uplink and downlink communications in non-overlapping portions of the first frequency band and the second frequency band to mitigate potential interference issues within the overlapping portion. However, when the non-overlapping portion does not have sufficient resources to carry uplink and downlink communications, the overlapping portion may be used based on a priority associated with the communication type. For example, downlink communications may take precedence over uplink communications. Within downlink communications, certain communications may take precedence over other communications. For example, SSB and / or CSI-RS transmissions may take precedence over PDSCH transmissions.

[0074] At action 506, UE 115 may send communications in the first frequency band. Within uplink communications, UE 115 may send communications in a portion of the first frequency band that overlaps with the second frequency band based on the priority associated with the communication type determined at action 504. For example, SRS may have a higher priority than PUSCH communications. In some aspects, the UE may have a transmit buffer that stores data to be sent via PUSCH communications. In the case of limited resources within the overlapping portion of the first frequency band and the second frequency band, the UE may prioritize the transmission of one or more SRS, other reference signals, and / or UL control information over the transmission of PUSCH communications. PUSCH communications may be sent at a later time (e.g., a later time slot or sub-time slot).

[0075] Additionally or alternatively, when the non-overlapping portions of the first frequency band and the second frequency band do not have sufficient resources to carry uplink and downlink communications, the overlapping portions may be used based on a time division multiplexing (TDM) basis. For example, the resource grant received by the UE from the network element at action 502 may schedule downlink communications from the network element to the UE in the overlapping portion during a first time period (e.g., a first time slot or sub-time slot). The resource grant may schedule another downlink communication in a second time period (e.g., a second time slot or sub-time slot). The resource grant may schedule uplink communications in a third time period (e.g., a third time slot or sub-time slot). The time period (e.g., a time slot or sub-time slot) may be continuous or discontinuous.

[0076] At action 508, UE 115 may receive communications from network element 105 in a second frequency band. Communications may include, but are not limited to, channel state information reference signals (CSI-RS), physical downlink shared channel (PDSCH) communications, physical downlink control channel (PDCCH) communications, synchronization signal blocks (SSBs), downlink control information (DCI), demodulation reference signals (DMRS), and / or other communications. In some aspects, the second frequency band may include a frequency range, a spectrum, a frequency interlace, a bandwidth portion, a channel, and / or a subchannel. The second frequency band may be a licensed and / or unlicensed (e.g., shared) frequency band.

[0077] Additionally or alternatively, the resource grant may configure the UE to receive the second communication in a portion of the second frequency band that does not overlap with the first frequency band. In this regard, the resource grant may configure the UE to receive certain communications (e.g., high priority downlink communications, such as DL control communications) in the portion of the second frequency band that does not overlap with the first frequency band. For example, the resource grant may configure the UE to receive CSI-RS, PDCCH communications, DCI, and / or DMRS in the portion of the second frequency band that does not overlap with the first frequency band.

[0078] Figure 6 6 is a block diagram of an exemplary UE 600 according to some aspects of the present disclosure. UE 600 may be UE 115 or UE 120 in network 100 or 200 as discussed above. As shown, UE 600 may include a processor 602, a memory 604, a time division multiplexing module 608, a transceiver 610 including a modem subsystem 612 and a radio frequency (RF) unit 614, and one or more antennas 616. These elements may be coupled to each other, for example, via one or more buses and communicate with each other directly or indirectly.

[0079] The processor 602 may include a central processing unit (CPU), a digital signal processor (DSP), an application specific integrated circuit (ASIC), a controller, a field programmable gate array (FPGA) device, another hardware device, a firmware device, or any combination thereof configured to perform the operations described herein. The processor 602 may also be implemented as a combination of computing devices, for example, a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration.

[0080] Memory 604 may include cache memory (e.g., cache memory of processor 602), random access memory (RAM), magnetoresistive RAM (MRAM), read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), flash memory, solid-state memory devices, hard drives, other forms of volatile and non-volatile memory, or a combination of different types of memory. In some examples, memory 604 includes non-transitory computer-readable media. Memory 604 may store instructions 606. Instructions 606 may include instructions that, when executed by processor 602, cause processor 602 to perform the various aspects of the present disclosure described herein with reference to UE 115 (e.g., Figures 3 to 5 Instructions 606 may also be referred to as code. The terms "instructions" and "code" should be broadly interpreted to include any type of computer-readable statements. For example, the terms "instructions" and "code" may refer to one or more programs, routines, subroutines, functions, processes, etc. "Instructions" and "code" may include a single computer-readable statement or many computer-readable statements.

[0081] The time division multiplexing module 608 may be implemented via hardware, software, or a combination thereof. For example, the time division multiplexing module 608 may be implemented as a processor, circuit, and / or instruction 606 stored in the memory 604 and executed by the processor 602. In some aspects, the time division multiplexing module 608 may be used to send a first communication in a first frequency band. In some aspects, the time division multiplexing module 608 may be used to receive a second communication in a second frequency band, wherein a portion of the second frequency band partially overlaps with the first frequency band, and the first communication is time division multiplexed with the second communication in a portion of the second frequency band that partially overlaps with the first frequency band.

[0082] As shown, the transceiver 610 may include a modem subsystem 612 and an RF unit 614. The transceiver 610 may be configured to communicate bidirectionally with other devices, such as the BS 105 and / or the UE 115. The modem subsystem 612 may be configured to modulate and / or encode data from the memory 604 according to a modulation and coding scheme (MCS) (e.g., a low-density parity check (LDPC) decoding scheme, a turbo decoding scheme, a convolutional decoding scheme, a digital beamforming scheme, etc.). The RF unit 614 may be configured to process (e.g., perform analog-to-digital conversion or digital-to-analog conversion, etc.) the modulated / encoded data from the modem subsystem 612 (for outbound transmissions) or transmissions originating from another source, such as the UE 115 or the BS 105. The RF unit 614 may be further configured to perform analog beamforming in conjunction with digital beamforming. Although shown as being integrated together in the transceiver 610 , the modem subsystem 612 and the RF unit 614 may be separate devices that are coupled together to enable the UE 600 to communicate with other devices.

[0083] RF unit 614 may provide modulated and / or processed data, such as a data packet (or more generally, a data message that may include one or more data packets and other information), to antenna 616 for transmission to one or more other devices. Antenna 616 may further receive data messages transmitted from other devices. Antenna 616 may provide received data messages for processing and / or demodulation at transceiver 610. Antenna 616 may include multiple antennas of similar or different designs to maintain multiple transmission links. RF unit 614 may configure antenna 616.

[0084] In some examples, the UE 600 may include multiple transceivers 610 that implement different RATs (e.g., NR and LTE). In some examples, the UE 600 may include a single transceiver 610 that implements multiple RATs (e.g., NR and LTE). In some examples, the transceiver 610 may include various components, where different combinations of the components may implement the RATs.

[0085] Figure 7 7 is a block diagram of an exemplary network unit 700 according to some aspects of the present disclosure. The network unit 700 may be a BS 105, a CU 210, a DU 230, or a RU 240 as discussed above. As shown, the network unit 700 may include a processor 702, a memory 704, a time division multiplexing module 708, a transceiver 710 (including a modem subsystem 712 and an RF unit 714), and one or more antennas 716. These elements may be coupled to each other, for example, via one or more buses and communicate with each other directly or indirectly.

[0086] The processor 702 may have various features as a particular type of processor. For example, these features may include a CPU, a DSP, an ASIC, a controller, an FPGA device, another hardware device, a firmware device, or any combination thereof configured to perform the operations described herein. The processor 702 may also be implemented as a combination of computing devices, for example, a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors combined with a DSP core, or any other such configuration.

[0087] Memory 704 may include cache memory (e.g., cache memory of processor 702), RAM, MRAM, ROM, PROM, EPROM, EEPROM, flash memory, solid-state memory devices, one or more hard disk drives, memristor-based arrays, other forms of volatile and non-volatile memory, or a combination of different types of memory. In some examples, memory 704 may include non-transitory computer-readable media. Memory 704 may store instructions 706. Instructions 706 may include instructions that, when executed by processor 702, cause processor 702 to perform the operations described herein (e.g., Figures 3 to 5 Instructions 706 may also be referred to as codes, which may be broadly interpreted to include any type of computer-readable statements.

[0088] The time division multiplexing module 708 may be implemented via hardware, software, or a combination thereof. For example, the time division multiplexing module 708 may be implemented as a processor, circuit, and / or instruction 706 stored in the memory 704 and executed by the processor 702 .

[0089] In some aspects, the time division multiplexing module 708 can implement Figures 3 to 5 For example, the time division multiplexing module 708 may send a first communication in a first frequency band. The time division multiplexing module 708 may receive a second communication in a second frequency band, wherein a portion of the second frequency band partially overlaps with the first frequency band, and the first communication is time division multiplexed with the second communication in a portion of the second frequency band that partially overlaps with the first frequency band.

[0090] Additionally or alternatively, the time division multiplexing module 708 may be implemented in any combination of hardware and software, and in some implementations may involve, for example, the processor 702 , memory 704 , instructions 706 , transceiver 710 , and / or modem 712 .

[0091] As shown, the transceiver 710 may include a modem subsystem 712 and an RF unit 714. The transceiver 710 may be configured to communicate bidirectionally with other devices, such as the UE 115 and / or the UE 600. The modem subsystem 712 may be configured to modulate and / or encode data according to an MCS (e.g., an LDPC decoding scheme, a turbo decoding scheme, a convolutional decoding scheme, a digital beamforming scheme, etc.). The RF unit 714 may be configured to process (e.g., perform analog-to-digital conversion or digital-to-analog conversion, etc.) the modulated / encoded data from the modem subsystem 712 (for outbound transmissions) or from another source, such as the UE 115 or the UE 600. The RF unit 714 may be further configured to perform analog beamforming in conjunction with digital beamforming. Although shown as being integrated together in the transceiver 710, the modem subsystem 712 and / or the RF unit 714 may be separate devices that are coupled together at the network unit 700 to enable the network unit 700 to communicate with other devices.

[0092] The RF unit 714 may provide modulated and / or processed data, such as data packets (or more generally, data messages that may include one or more data packets and other information), to the antenna 716 for transmission to one or more other devices. For example, according to aspects of the present disclosure, this may include a configuration indicating multiple sub-slots within a time slot. The antenna 716 may also receive data messages sent from other devices and provide the received data messages for processing and / or demodulation at the transceiver 710. The antenna 716 may include multiple antennas of similar design or different designs to maintain multiple transmission links.

[0093] In some examples, the network unit 700 may include multiple transceivers 710 that implement different RATs (e.g., NR and LTE). In some examples, the network unit 700 may include a single transceiver 710 that implements multiple RATs (e.g., NR and LTE). In some examples, the transceiver 710 may include various components, where different combinations of components may implement the RATs.

[0094] Figure 8800 is a flow chart of a communication method 800 according to some aspects of the present disclosure. Various aspects of the method 800 may be performed by a computing device (e.g., a processor, processing circuitry, and / or other suitable components) of a wireless communication device or other suitable means for performing these aspects. For example, a wireless communication device such as UE 115, UE 120, or UE 600 may utilize one or more components to perform various aspects of the method 800, such as a processor 602, a memory 604, a time division multiplexing module 608, a transceiver 610, a modem 612, and one or more antennas 616. The method 800 may employ mechanisms similar to those in networks 100 and 200 and with respect to Figures 3 to 5 As illustrated, method 800 includes multiple enumerated aspects, but method 800 may include additional aspects before, after, and between the enumerated aspects. In some aspects, one or more of these enumerated aspects may be omitted or performed in a different order.

[0095] At action 810, method 800 includes: a UE (e.g., UE 115, UE 120, or UE 600) sends a first communication in a first frequency band. In some aspects, the UE may send a first communication to a network unit (e.g., BS 105, RU 240, DU 230, CU 210, and / or network unit 700) in the first frequency band. The first communication may include, but is not limited to, a sounding reference signal (SRS), a physical uplink shared channel (PUSCH) communication, a physical uplink control channel (PUCCH) communication, a physical random access channel (PRACH) communication, and / or other communications. In some aspects, the first frequency band may include a frequency range, a spectrum, a frequency interleave, a bandwidth portion, a channel, and / or a subchannel. The first frequency band may be a licensed and / or unlicensed (e.g., shared) frequency band.

[0096] At action 820, method 800 includes: a UE (e.g., UE 115, UE 120, or UE 600) receives a second communication in a second frequency band. In some aspects, the UE may receive a second communication from a network unit (e.g., BS 105, RU 240, DU 230, CU 210, and / or network unit 700) in the second frequency band. The second communication may include, but is not limited to, a channel state information reference signal (CSI-RS), a physical downlink shared channel (PDSCH) communication, a physical downlink control channel (PDCCH) communication, a synchronization signal block (SSB), a downlink control information (DCI), a demodulation reference signal (DMRS), and / or other communications. In some aspects, the second frequency band may include a frequency range, a spectrum, a frequency interleave, a bandwidth portion, a channel, and / or a subchannel. The second frequency band may be a licensed and / or unlicensed (e.g., shared) frequency band.

[0097] In some aspects, the first frequency band may overlap (e.g., partially overlap) at least a portion of the second frequency band. In other words, a range of frequencies may be common to both the first frequency band and the second frequency band. In some aspects, the overlapping portion of the first frequency band and the second frequency band may include one or more guard bands. The guard band may provide interference protection for transmissions in the non-overlapping portion of the first frequency band and the second frequency band. The guard band may include a frequency range adjacent to one or both sides of the overlapping portion of the first frequency band and the second frequency band. The width of the guard band may be based on a certain number of subchannels and / or frequency ranges. In some aspects, the size of the guard band may be based on the frequency range of the first frequency band and / or the second frequency band. In some aspects, the size of the guard band may be based on the size of the overlapping portion. For example, a wider overlapping portion may require a wider guard band.

[0098] When a wireless communication device (e.g., a UE or a network element) attempts to simultaneously transmit and receive signals in an overlapping portion of a first frequency band and a second frequency band, the transmitted signal may interfere with the received signal, resulting in degradation of the received signal and / or errors in processing and / or decoding the received signal. To overcome this limitation, some aspects of the present disclosure time-division multiplex the transmitted and received signals in the overlapping portion of the first frequency band and the second frequency band. For example, a UE may receive a resource grant from a network element, which schedules resources to the UE to transmit communications in certain time frames (e.g., certain time slots and / or sub-time slots) and receive communications in certain other time frames (e.g., certain other time slots and / or sub-time slots). The resource grant may configure the UE to suppress the simultaneous transmission of the first communication and the reception of the second communication in the portion of the first frequency band that overlaps with the second frequency band. In this regard, the resource grant may configure the UE with transmission resources and reception resources so that the transmission resources do not overlap with the reception resources in time, including not overlapping in time within the overlapping portion of the first frequency band and the second frequency band.

[0099] Additionally or alternatively, the resource grant may configure the UE to send the first communication in a portion of the first frequency band that does not overlap with the second frequency band. In this regard, the resource grant may configure the UE to send certain communications (e.g., high priority uplink communications, such as UL control communications) in the portion of the first frequency band that does not overlap with the second frequency band. For example, the resource grant may configure the UE to send a sounding reference signal (SRS), a physical uplink control channel (PUCCH) communication, and / or a physical random access channel (PRACH) in the portion of the first frequency band that does not overlap with the second frequency band.

[0100] Additionally or alternatively, the resource grant may configure the UE to receive the second communication in a portion of the second frequency band that does not overlap with the first frequency band. In this regard, the resource grant may configure the UE to receive certain communications (e.g., high priority downlink communications, such as DL control communications) in the portion of the second frequency band that does not overlap with the first frequency band. For example, the resource grant may configure the UE to receive CSI-RS, PDCCH communications, DCI, and / or DMRS in the portion of the second frequency band that does not overlap with the first frequency band.

[0101] In some aspects, the network element may prioritize scheduling uplink and downlink communications in non-overlapping portions of the first frequency band and the second frequency band in order to mitigate potential interference issues within the overlapping portions. However, when the non-overlapping portions do not have sufficient resources to carry uplink and downlink communications, the overlapping portions may be used based on priorities associated with the types of communications. For example, downlink communications may be prioritized over uplink communications. Within downlink communications, certain communications may be prioritized over other communications. For example, SSB and / or CSI-RS transmissions may be prioritized over PDSCH transmissions.

[0102] In uplink communications, the UE may send communications in a portion of the first frequency band that overlaps with the second frequency band based on a priority associated with the type of communication. For example, SRS may have a higher priority than PUSCH communications. In some aspects, the UE may have a transmit buffer that stores data to be sent via PUSCH communications. In the case of limited resources within the overlapping portion of the first frequency band and the second frequency band, the UE may prioritize the transmission of one or more SRS, other reference signals, and / or UL control information over the transmission of PUSCH communications. PUSCH communications may be sent at a later time (e.g., a later time slot or sub-time slot).

[0103] Additionally or alternatively, when the non-overlapping portions of the first frequency band and the second frequency band do not have sufficient resources to carry uplink and downlink communications, the overlapping portions may be used based on a time division multiplexing (TDM) basis. For example, a resource grant received by the UE from the network element may schedule downlink communications from the network element to the UE in the overlapping portion during a first time period (e.g., a first time slot or sub-time slot). The resource grant may schedule another downlink communication in a second time period (e.g., a second time slot or sub-time slot). The resource grant may schedule uplink communications in a third time period (e.g., a third time slot or sub-time slot). The time period (e.g., a time slot or sub-time slot) may be continuous or discontinuous. The resource grant may indicate any TDM mode and / or any number of uplink and downlink communications. The TDM mode may be based on a priority of a communication type. Additionally or alternatively, the UE may send a buffer status report (BSR) to the network element indicating the amount of data the UE expects to send to the network element. In some aspects, the network element may determine the TDM mode based at least in part on the BSR of the UE.

[0104] Fig. 9 800 is a flow chart of a communication method 900 according to some aspects of the present disclosure. Various aspects of the method 900 may be performed by a computing device (e.g., a processor, processing circuitry, and / or other suitable components) of a wireless communication device or other suitable means for performing these aspects. For example, a wireless communication device (such as BS 105, RU 240, DU 230, CU 210, and / or network unit 700) may utilize one or more components to perform various aspects of the method 800, the one or more components such as processor 602, memory 604, time division multiplexing module 608, transceiver 610, modem 612, and one or more antennas 616. The method 800 may employ mechanisms similar to those in networks 100 and 200 and with respect to Figures 3 to 5 As illustrated, method 900 includes multiple enumerated aspects, but method 900 may include additional aspects before, after, and between the enumerated aspects. In some aspects, one or more of these enumerated aspects may be omitted or performed in a different order.

[0105] At action 910, method 900 includes: a network unit (e.g., BS 105, RU 240, DU 230, CU 210, and / or network unit 700) sends a first communication in a first frequency band. In some aspects, the network unit may send the first communication to a UE (e.g., UE 115, UE 120, or UE 600) in the first frequency band. The first communication may include, but is not limited to, a channel state information reference signal (CSI-RS), a physical downlink shared channel (PDSCH) communication, a physical downlink control channel (PDCCH) communication, a synchronization signal block (SSB), a downlink control information (DCI), a demodulation reference signal (DMRS), and / or other communications. In some aspects, the first frequency band may include a frequency range, a spectrum, a frequency interleave, a bandwidth portion, a channel, and / or a subchannel. The first frequency band may be a licensed and / or unlicensed (e.g., shared) frequency band.

[0106] At action 920, method 900 includes: a network unit (e.g., BS 105, RU 240, DU 230, CU 210, and / or network unit 700) receives a second communication in a second frequency band. In some aspects, the network unit may receive a second communication from a UE (e.g., UE 115, UE 120, or UE 600) in the second frequency band. The second communication may include, but is not limited to, a sounding reference signal (SRS), a physical uplink shared channel (PUSCH) communication, a physical uplink control channel (PUCCH) communication, a physical random access channel (PRACH) communication, and / or other communications. In some aspects, the second frequency band may include a frequency range, a spectrum, a frequency interleave, a bandwidth portion, a channel, and / or a subchannel. The second frequency band may be a licensed and / or unlicensed (e.g., shared) frequency band.

[0107] In some aspects, the first frequency band may overlap (e.g., partially overlap) at least a portion of the second frequency band. In other words, a range of frequencies may be common to both the first frequency band and the second frequency band. In some aspects, the overlapping portion of the first frequency band and the second frequency band may include one or more guard bands. The guard band may provide interference protection for transmissions in the non-overlapping portion of the first frequency band and the second frequency band. The guard band may include a frequency range adjacent to one or both sides of the overlapping portion of the first frequency band and the second frequency band. The width of the guard band may be based on a certain number of subchannels and / or frequency ranges. In some aspects, the size of the guard band may be based on the frequency range of the first frequency band and / or the second frequency band. In some aspects, the size of the guard band may be based on the size of the overlapping portion. For example, a wider overlapping portion may require a wider guard band.

[0108] When a wireless communication device (e.g., a UE or a network element) attempts to simultaneously transmit and receive signals in an overlapping portion of a first frequency band and a second frequency band, the transmitted signal may interfere with the received signal, resulting in degradation of the received signal and / or errors in processing and / or decoding the received signal. To overcome this limitation, some aspects of the present disclosure time-division multiplex the transmitted and received signals in the overlapping portion of the first frequency band and the second frequency band. For example, the network element may send a resource grant to the UE, which schedules resources to the UE to send communications to the network element in certain time frames (e.g., certain time slots and / or sub-time slots) and receive communications from the network element in certain other time frames (e.g., certain other time slots and / or sub-time slots). The resource grant may configure the UE to suppress the simultaneous transmission of the first communication and the reception of the second communication in the portion of the first frequency band that overlaps with the second frequency band. In this regard, the resource grant may configure the UE with transmission resources and reception resources so that the transmission resources do not overlap with the reception resources in time, including not overlapping in time within the overlapping portion of the first frequency band and the second frequency band.

[0109] The resource grant may configure the network element to refrain from simultaneously transmitting the first communication and receiving the second communication in a portion of the first frequency band that overlaps with the second frequency band. In this regard, the resource grant may configure the network element with transmit resources and receive resources such that the transmit resources do not overlap in time with the receive resources, including not overlapping in time within an overlapping portion of the first frequency band and the second frequency band.

[0110] Additionally or alternatively, the resource grant may configure the network element to send the first communication in a portion of the first frequency band that does not overlap with the second frequency band. In this regard, the resource grant may configure the network element to send certain communications (e.g., high priority downlink communications, such as DL control communications) in a portion of the first frequency band that does not overlap with the second frequency band. For example, the resource grant may configure the network element to send CSI-RS, PDCCH communications, DCI, and / or DMRS in a portion of the first frequency band that does not overlap with the second frequency band.

[0111] Additionally or alternatively, the resource grant may configure the network element to receive the second communication in a portion of the second frequency band that does not overlap with the first frequency band. In this regard, the resource grant may configure the network element to receive certain communications (e.g., high priority uplink communications, such as uplink control communications) in the portion of the second frequency band that does not overlap with the first frequency band. For example, the resource grant may configure the network element to receive SRS, PUCCH, and / or PRACH in the portion of the second frequency band that does not overlap with the first frequency band.

[0112] In some aspects, the network element may prioritize scheduling uplink and downlink communications in non-overlapping portions of the first frequency band and the second frequency band in order to mitigate potential interference issues within the overlapping portions. However, when the non-overlapping portions do not have sufficient resources to carry uplink and downlink communications, the overlapping portions may be used based on priorities associated with the types of communications. For example, downlink communications may be prioritized over uplink communications. Within downlink communications, certain communications may be prioritized over other communications. For example, SSB and / or CSI-RS transmissions may be prioritized over PDSCH transmissions.

[0113] In uplink communications, the UE may send communications in a portion of the first frequency band that overlaps with the second frequency band based on a priority associated with the type of communication. For example, SRS may have a higher priority than PUSCH communications. In some aspects, the UE may have a transmit buffer that stores data to be sent via PUSCH communications. In the case of limited resources within the overlapping portion of the first frequency band and the second frequency band, the UE may prioritize the transmission of one or more SRS, other reference signals, and / or UL control information over the transmission of PUSCH communications. PUSCH communications may be sent at a later time (e.g., a later time slot or sub-time slot).

[0114] Additionally or alternatively, when the non-overlapping portions of the first frequency band and the second frequency band do not have sufficient resources to carry uplink and downlink communications, the overlapping portions may be used based on a time division multiplexing (TDM) basis. For example, a resource grant sent by a network node to a network element may schedule downlink communications from the network element to the UE in the overlapping portion during a first time period (e.g., a first time slot or sub-time slot). The resource grant may schedule another downlink communication in a second time period (e.g., a second time slot or sub-time slot). The resource grant may schedule uplink communications in a third time period (e.g., a third time slot or sub-time slot). The time period (e.g., a time slot or sub-time slot) may be continuous or discontinuous. The resource grant may indicate any TDM mode and / or any number of uplink and downlink communications. The TDM mode may be based on a priority of a communication type. Additionally or alternatively, the network element may receive a buffer status report (BSR) from the UE indicating the amount of data that the UE expects to send to the network element. In some aspects, the network element may determine the TDM mode based at least in part on the BSR of the UE.

[0115] Other aspects of the present disclosure include the following:

[0116] Aspect 1 includes a method of wireless communication performed by a user equipment (UE), the method comprising: sending a first communication in a first frequency band; receiving a second communication in a second frequency band, wherein a portion of the second frequency band partially overlaps with the first frequency band; and the first communication is time-division multiplexed with the second communication in the portion of the second frequency band that partially overlaps with the first frequency band.

[0117] Aspect 2 includes the method of aspect 1, wherein the first communication includes a physical uplink shared channel (PUSCH) communication; and the second communication includes a physical downlink shared channel (PDSCH) communication.

[0118] Aspect 3 includes a method according to any one of Aspects 1 to 2, further comprising: receiving a resource grant; and based on the resource grant, suppressing simultaneously sending the first communication in the portion of the second frequency band that partially overlaps with the first frequency band and receiving the second communication in the portion of the second frequency band that partially overlaps with the first frequency band.

[0119] Aspect 4 includes a method according to any one of Aspects 1 to 3, further including: receiving a resource grant, wherein sending the first communication in the first frequency band includes: sending the first communication in a part of the first frequency band that does not overlap with the second frequency band based on the resource grant; and receiving the second communication in the second frequency band includes: receiving the second communication in a part of the second frequency band that does not overlap with the first frequency band based on the resource grant.

[0120] Aspect 5 includes a method according to any one of Aspects 1 to 4, wherein the first communication includes at least one of a physical uplink control channel (PUCCH) communication or a physical random access channel (PRACH) communication; and the second communication includes a physical downlink control channel (PDCCH).

[0121] Aspect 6 includes the method of any one of aspects 1 to 5, wherein sending the first communication includes sending the first communication based on a priority associated with the first communication.

[0122] Aspect 7 includes the method of any one of aspects 1 to 6, wherein the first communication includes at least one of a sounding reference signal (SRS) or a physical uplink shared channel (PUSCH) communication.

[0123] Aspect 8 includes the method according to any one of aspects 1 to 7, wherein the portion of the second frequency band partially overlapping the first frequency band includes one or more guard bands.

[0124] Aspect 9 includes a method of wireless communication performed by a network unit, the method comprising: sending a first communication in a first frequency band; receiving a second communication in a second frequency band, wherein a portion of the second frequency band partially overlaps with the first frequency band; and the first communication is time-division multiplexed with the second communication in the portion of the second frequency band that partially overlaps with the first frequency band.

[0125] Aspect 10 includes the method of aspect 9, wherein the first communication comprises a physical downlink shared channel (PDSCH) communication; and the second communication comprises a physical uplink shared channel (PUSCH) communication.

[0126] Aspect 11 includes a method according to any one of Aspects 9 to 10, further comprising: sending a resource grant; and based on the resource grant, suppressing simultaneously sending the first communication in the portion of the second frequency band that partially overlaps with the first frequency band and receiving the second communication in the portion of the second frequency band that partially overlaps with the first frequency band.

[0127] Aspect 12 includes a method according to any one of Aspects 9 to 11, further including: sending a resource grant, wherein sending the first communication in the first frequency band includes: sending the first communication in a part of the first frequency band that does not overlap with the second frequency band based on the resource grant; and receiving the second communication in the second frequency band includes: receiving the second communication in a part of the second frequency band that does not overlap with the first frequency band based on the resource grant.

[0128] Aspect 13 includes a method according to any one of Aspects 9 to 12, wherein the second communication includes at least one of a physical uplink control channel (PUCCH) communication or a physical random access channel (PRACH) communication; and the first communication includes a physical downlink control channel (PDCCH) communication.

[0129] Aspect 14 includes the method of any one of aspects 9 to 13, wherein sending the first communication comprises sending the first communication based on a priority associated with the first communication.

[0130] Aspect 15 includes a method according to any one of aspects 9 to 14, wherein the first communication includes at least one of a synchronization signal block (SSB), a channel state information reference signal (CSI-RS), or a physical downlink shared channel (PDSCH) communication.

[0131] Aspect 16 includes the method according to any one of aspects 9 to 15, wherein the portion of the second frequency band partially overlapping the first frequency band includes one or more guard bands.

[0132] Aspect 17 includes a non-transitory computer-readable medium storing one or more instructions for wireless communication, the one or more instructions including one or more instructions that, when executed by one or more processors of a UE, cause the UE to perform any of aspects 1 to 8.

[0133] Aspect 18 includes a non-transitory computer-readable medium storing one or more instructions for wireless communication, the one or more instructions including one or more instructions that, when executed by one or more processors of a network element, cause the network element to perform any of Aspects 9 to 16.

[0134] Aspect 19 includes a user equipment (UE) comprising one or more components for performing any one or more of aspects 1-8.

[0135] Aspect 20 includes a network element comprising one or more components for performing any one or more of aspects 9-16.

[0136] Information and signals may be represented using any of a variety of different technologies and techniques. For example, data, instructions, commands, information, signals, bits, symbols, and chips that may be mentioned throughout the above description may be represented by voltage, current, electromagnetic waves, magnetic fields or magnetic particles, optical fields or optical particles, or any combination thereof.

[0137] The various illustrative blocks and modules described in conjunction with the disclosure herein may be implemented or executed using a general purpose processor, DSP, ASIC, FPGA or other programmable logic device, discrete gate or transistor logic components, discrete hardware components, or any combination thereof designed to perform the functions described herein. A general purpose processor may be a microprocessor, but in an alternative, the processor may be any conventional processor, controller, microcontroller, or state machine. The processor may also be implemented as a combination of computing devices (e.g., a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors combined with a DSP core, or any other such configuration).

[0138] The functions described herein may be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software executed by a processor, the functions may be stored as one or more instructions or codes on a computer-readable medium, or sent via a computer-readable medium. Other examples and specific implementations are within the scope of the present disclosure and the appended claims. For example, due to the nature of software, the functions described above may be implemented using software, hardware, firmware, hard wiring, or any combination thereof executed by a processor. The features that implement the functions may also be physically located at different locations, including being distributed so that the parts of the functions are implemented at different physical locations. In addition, as used herein (including in the claims), as used in an item enumeration (e.g., followed by an item enumeration such as "at least one of" or "one or more of"), "or" indicates an inclusive enumeration, such that, for example, an enumeration of [at least one of A, B, or C] means: A or B or C or AB or AC or BC or ABC (i.e., A and B and C).

[0139] As those skilled in the art will understand by now and depending on the specific application at hand, many modifications, substitutions and changes may be made to the materials, devices, configurations and methods of use of the apparatus of the present disclosure without departing from the spirit and scope of the present disclosure. In view of this, the scope of the present disclosure should not be limited to the scope of the specific examples illustrated and described herein (because they are only some examples thereof), but should be fully equivalent to the claims attached hereto and their functional equivalents.

Claims

1. A method of wireless communication performed by a user equipment (UE), the method comprising: transmitting a first communication in a first frequency band; as well as A second communication is received in a second frequency band, wherein: a portion of the second frequency band partially overlapping the first frequency band; and The first communication is time division multiplexed with the second communication in the portion of the second frequency band that partially overlaps with the first frequency band.

2. The method according to claim 1, wherein: The first communication comprises a physical uplink shared channel (PUSCH) communication; and The second communication comprises a Physical Downlink Shared Channel (PDSCH) communication.

3. The method according to claim 1, further comprising: receiving resource grants; as well as Based on the resource grant, simultaneously transmitting the first communication in the portion of the second frequency band that partially overlaps the first frequency band and receiving the second communication in the portion of the second frequency band that partially overlaps the first frequency band are refrained from.

4. The method according to claim 1, further comprising: Receive a resource grant where: Transmitting the first communication in the first frequency band includes: transmitting the first communication in a portion of the first frequency band that does not overlap with the second frequency band based on the resource grant; and Receiving the second communication in the second frequency band includes receiving the second communication in a portion of the second frequency band that does not overlap with the first frequency band based on the resource grant.

5. The method according to claim 4, wherein: The first communication comprises at least one of a physical uplink control channel (PUCCH) communication or a physical random access channel (PRACH) communication; and The second communication includes a Physical Downlink Control Channel (PDCCH).

6. The method of claim 1 , wherein sending the first communication comprises: The first communication is sent based on a priority associated with the first communication.

7. The method according to claim 6, wherein: The first communication includes at least one of a sounding reference signal (SRS) or a physical uplink shared channel (PUSCH) communication.

8. The method of claim 1, wherein the portion of the second frequency band that partially overlaps the first frequency band comprises one or more guard bands.

9. A method of wireless communication performed by a network element, the method comprising: transmitting a first communication in a first frequency band; as well as A second communication is received in a second frequency band, wherein: a portion of the second frequency band partially overlapping the first frequency band; and The first communication is time division multiplexed with the second communication in the portion of the second frequency band that partially overlaps with the first frequency band.

10. The method according to claim 9, wherein: The first communication comprises a physical downlink shared channel (PDSCH) communication; and The second communication comprises a Physical Uplink Shared Channel (PUSCH) communication.

11. The method according to claim 9, further comprising: Send resource grants; as well as Based on the resource grant, simultaneously transmitting the first communication in the portion of the second frequency band that partially overlaps the first frequency band and receiving the second communication in the portion of the second frequency band that partially overlaps the first frequency band are refrained from.

12. The method according to claim 9, further comprising: Send a resource grant where: Transmitting the first communication in the first frequency band includes: transmitting the first communication in a portion of the first frequency band that does not overlap with the second frequency band based on the resource grant; and Receiving the second communication in the second frequency band includes receiving the second communication in a portion of the second frequency band that does not overlap with the first frequency band based on the resource grant.

13. The method according to claim 12, wherein: The second communication comprises at least one of a physical uplink control channel (PUCCH) communication or a physical random access channel (PRACH) communication; and The first communication comprises a Physical Downlink Control Channel (PDCCH) communication.

14. The method of claim 9, wherein sending the first communication comprises: The first communication is sent based on a priority associated with the first communication.

15. The method according to claim 14, wherein: The first communication includes at least one of a synchronization signal block (SSB), a channel state information reference signal (CSI-RS), or a physical downlink shared channel (PDSCH) communication.

16. The method of claim 9, wherein the portion of the second frequency band that partially overlaps the first frequency band includes one or more guard bands.

17. A user equipment (UE), comprising: Memory; Transceiver; and at least one processor coupled to the memory and the transceiver, wherein the UE is configured to: transmitting a first communication in a first frequency band; as well as A second communication is received in a second frequency band, wherein: a portion of the second frequency band partially overlapping the first frequency band; and The first communication is time division multiplexed with the second communication in the portion of the second frequency band that partially overlaps with the first frequency band.

18. The UE according to claim 17, wherein: The first communication comprises a physical uplink shared channel (PUSCH) communication; and The second communication comprises a Physical Downlink Shared Channel (PDSCH) communication.

19. The UE according to claim 17, wherein the UE is further configured to: receiving a resource grant; and Based on the resource grant, simultaneously transmitting the first communication in the portion of the second frequency band that partially overlaps the first frequency band and receiving the second communication in the portion of the second frequency band that partially overlaps the first frequency band are refrained from.

20. The UE according to claim 17, wherein the UE is further configured to: receiving resource grants; transmitting the first communication in a portion of the first frequency band that does not overlap with the second frequency band based on the resource grant; and The second communication is received in a portion of the second frequency band that does not overlap with the first frequency band based on the resource grant.

21. The UE according to claim 20, wherein: The first communication comprises at least one of a physical uplink control channel (PUCCH) communication or a physical random access channel (PRACH) communication; and The second communication includes a Physical Downlink Control Channel (PDCCH).

22. The UE according to claim 17, wherein the UE is further configured to: The first communication is sent based on a priority associated with the first communication.

23. The UE according to claim 22, wherein: The first communication includes at least one of a sounding reference signal (SRS) or a physical uplink shared channel (PUSCH) communication.

24. The UE of claim 17, wherein the portion of the second frequency band that partially overlaps the first frequency band comprises one or more guard bands.

25. A network unit, comprising: Memory; Transceiver; and at least one processor coupled to the memory and the transceiver, wherein the network unit is configured to: transmitting a first communication in a first frequency band; as well as A second communication is received in a second frequency band, wherein: a portion of the second frequency band partially overlapping the first frequency band; and The first communication is time division multiplexed with the second communication in the portion of the second frequency band that partially overlaps with the first frequency band.

26. The network unit according to claim 25, wherein: The first communication comprises a physical downlink shared channel (PDSCH) communication; and The second communication comprises a Physical Uplink Shared Channel (PUSCH) communication.

27. The network unit according to claim 25, wherein the network unit is further configured to: Sending resource grants; and Based on the resource grant, simultaneously transmitting the first communication in the portion of the second frequency band that partially overlaps the first frequency band and receiving the second communication in the portion of the second frequency band that partially overlaps the first frequency band are refrained from.

28. The network unit according to claim 25, wherein the network unit is further configured to: Send resource grants; transmitting the first communication in a portion of the first frequency band that does not overlap with the second frequency band based on the resource grant; and The second communication is received in a portion of the second frequency band that does not overlap with the first frequency band based on the resource grant.

29. The network unit according to claim 28, wherein: The second communication comprises at least one of a physical uplink control channel (PUCCH) communication or a physical random access channel (PRACH) communication; and The first communication comprises a Physical Downlink Control Channel (PDCCH) communication.

30. The network unit of claim 25, wherein: The network element is further configured to send the first communication based on a priority associated with the first communication; The first communication comprises at least one of a synchronization signal block (SSB), a channel state information reference signal (CSI-RS), or a physical downlink shared channel (PDSCH) communication; and The portion of the second frequency band partially overlapping the first frequency band includes one or more guard bands.

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