Dynamic physical (PHY) layer resource reallocation indication for wireless communications

Abstract

The present disclosure provides wireless communication systems, methods, and devices that support reallocation of physical (PHY) layer resources allocated for wireless communication. In a first aspect, a method of wireless communication performed by a user equipment (UE) includes receiving downlink control information (DCI) from a network for reallocating one or more resources allocated to communication of the UE. The DCI includes at least one reallocation indicator indicating a reallocation of one or more PHY layer resources allocated to the UE. The method also includes performing a response action based on the at least one reassignment indicator. Other aspects and features are also claimed and described.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims the benefit of U.S. patent application No. 18 / 057,846, filed on November 22, 2022, entitled “DYNAMIC PHYSICAL (PHY) LAYER RESOURCE REALLOCATION INDICATION FOR WIRELESS COMMUNICATION,” which is expressly incorporated herein by reference in its entirety. Technical Field

[0003] Aspects of the present disclosure generally relate to wireless communication systems, and more particularly to reallocation of physical (PHY) layer resources allocated for wireless communication. Some features can achieve and provide improved communications, including reducing the overhead of reallocating PHY layer resources to support higher priority communication traffic with more stringent quality of service requirements. Background Art

[0004] Wireless communication networks are widely deployed to provide various communication services such as voice, video, packet data, messaging, broadcast, etc. These wireless networks may be multiple-access networks capable of supporting multiple users by sharing the available network resources. Such networks may be multiple-access networks capable of supporting communication for multiple users by sharing the available network resources.

[0005] A wireless communication network may include several components. These components may include wireless communication devices, such as a base station (or Node B) that may support communication for several user equipments (UEs). A UE may communicate with a base station via a downlink and an uplink. A downlink (or forward link) refers to a communication link from a base station to a UE, and an uplink (or reverse link) refers to a communication link from a UE to a base station.

[0006] The base station may send data and control information to the UE on the downlink, or receive data and control information from the UE on the uplink. On the downlink, the transmission from the base station may encounter interference caused by transmissions from neighboring base stations or other wireless radio frequency (RF) transmitters. On the uplink, the transmission from the UE may encounter interference from other UEs communicating with neighboring base stations or from uplink transmissions of other wireless RF transmitters. This interference may degrade performance on both the downlink and uplink.

[0007] As the demand for mobile broadband access continues to grow, the potential for interference and congested networks grows with more UEs accessing long-range wireless communication networks and more short-range wireless systems deployed in communities. Research and development continues to advance wireless technologies to not only meet the growing demand for mobile broadband access, but also to improve and enhance the user experience with mobile communications.

[0008] A base station generally manages and schedules wireless communications between itself and UEs within a wireless network to meet as many criteria as possible, such as signal strength criteria, bandwidth and latency criteria, power consumption criteria, etc. In scheduling communications, a base station may allocate specific time and frequency resources to DL communications from a base station to one or more UEs or UL communications from one or more UEs to a base station by issuing a downlink (DL) grant or an uplink (UL) grant to each UE. For example, a DL grant may indicate time and frequency resources allocated to DL data transmission from a base station to a specific UE, and a UL grant may indicate time and frequency resources allocated to UL data transmission from a specific UE to a base station. These time and frequency resources are pre-allocated to allow UEs to receive corresponding grants to determine whether they are assigned to perform wireless communications via the allocated time and frequency resources, or whether they should suppress performing wireless communications via the allocated time and frequency resources.

[0009] In wireless networks that support communications of different priorities (e.g., services), managing wireless communications becomes more challenging. For example, ultra-reliable low-latency communications (URLLC) have more stringent quality of service (QoS) requirements than typical wireless communications, such as end-to-end latency as low as 5 milliseconds (ms), which may require URLLC services to be prioritized over other types of services within the wireless network. To this end, some wireless communication standards have introduced techniques for DL ​​preemption and UL cancellation to enable base stations to reallocate previously allocated time and frequency resources for lower priority services to higher priority services, such as URLLC services. For example, a base station may transmit a DL preemption message to a UE to indicate that the time and frequency resources allocated for DL ​​data transmission to the UE have been reallocated, and that the UE should not expect to receive data via the reallocated resources. As another example, a base station may transmit a UL cancellation message to a UE to indicate that the time and frequency resources allocated for UL transmission by the UE have been reallocated, and that the UE should not perform UL communications via the reallocated resources. Although the reallocation of time and frequency resources to serve URLLC services may satisfy URLLC constraints, the time and frequency resources may be more than required to satisfy the URLLC constraints, resulting in less efficient use of the wireless spectrum and degraded performance of UEs that do not utilize URLLC. Summary of the invention

[0010] 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.

[0011] In one aspect of the present disclosure, a user equipment (UE) includes a memory storing a processor readable code and at least one processor coupled to the memory. The at least one processor is configured to execute the processor readable code to cause the at least one processor to receive downlink control information (DCI) from a network for reallocating one or more resources allocated to a communication of the UE. The DCI includes at least one reallocation indicator indicating the reallocation of one or more physical (PHY) layer resources allocated to the UE. The at least one processor is also configured to execute the processor readable code to cause the at least one processor to perform a response action based on the at least one reallocation indicator.

[0012] In an additional aspect of the present disclosure, a method for wireless communication performed by a UE includes receiving from a network a DCI for reallocating one or more resources allocated to a communication of the UE. The DCI includes at least one reallocation indicator indicating the reallocation of one or more PHY layer resources allocated to the UE. The method also includes performing a response action based on the at least one reallocation indicator.

[0013] In an additional aspect of the present disclosure, an apparatus includes a component for receiving a DCI from a network for reallocating one or more resources allocated to a communication of a UE. The DCI includes at least one reallocation indicator indicating the reallocation of one or more PHY layer resources allocated to the UE. The apparatus also includes a component for performing a response action based on the at least one reallocation indicator.

[0014] In an additional aspect of the present disclosure, a non-transitory computer-readable medium stores instructions that, when executed by a processor, cause the processor to perform operations. The operations include receiving a DCI from a network for reallocating one or more resources allocated to a communication of a UE. The DCI includes at least one reallocation indicator indicating the reallocation of one or more PHY layer resources allocated to the UE. The operations also include performing a response action based on the at least one reallocation indicator.

[0015] In an additional aspect of the present disclosure, a base station includes a memory storing a processor-readable code and at least one processor coupled to the memory. The at least one processor is configured to execute the processor-readable code to cause the at least one processor to initiate the transmission of a DCI for reallocating one or more resources allocated to a communication of a UE. The DCI includes at least one reallocation indicator indicating the reallocation of one or more PHY layer resources allocated to the UE. The at least one processor is also configured to execute the processor-readable code to cause the at least one processor to communicate with a network entity other than the UE via the one or more PHY layer resources.

[0016] In an additional aspect of the present disclosure, a method for wireless communication performed by a base station includes sending a DCI for reallocating one or more resources allocated for communication to a UE. The DCI includes at least one reallocation indicator indicating the reallocation of one or more PHY layer resources allocated to the UE. The method also includes communicating with a network entity other than the UE via the one or more PHY layer resources.

[0017] In an additional aspect of the present disclosure, an apparatus includes means for sending a DCI for reallocating one or more resources allocated for communication to a UE. The DCI includes at least one reallocation indicator indicating the reallocation of one or more PHY layer resources allocated to the UE. The apparatus also includes means for communicating with a network entity other than the UE via the one or more PHY layer resources.

[0018] In an additional aspect of the present disclosure, a non-transitory computer-readable medium stores instructions that, when executed by a processor, cause the processor to perform operations. The operations include sending a DCI for reallocating one or more resources allocated to a communication of a UE. The DCI includes at least one reallocation indicator indicating the reallocation of one or more PHY layer resources allocated to the UE. The operations also include communicating with a network entity other than the UE via the one or more PHY layer resources.

[0019] The features and technical advantages of the examples according to the present disclosure have been outlined quite extensively above so that the following specific embodiments may be better understood. Additional features and advantages will be described below. The disclosed concepts and specific examples may be easily used as a basis for modifying or designing other structures for the same purpose of achieving the present disclosure. Such equivalent constructions do not depart from the scope of the appended claims. When considered in conjunction with the accompanying drawings, the characteristics of the concepts disclosed herein (both their organization and methods of operation) and the associated advantages will be better understood according to the following description. Each of the figures in the accompanying drawings is provided for the purpose of illustration and description, and not as a definition of limitations to the claims.

[0020] Although various aspects and specific implementations are described in this application by the illustration of some examples, it will be understood by those skilled in the art that additional specific implementations and use cases may be generated in many different arrangements and scenarios. The innovation described herein can be implemented across many different platform types, devices, systems, shapes, sizes, and packaging arrangements. For example, aspects and / or use can be generated via integrated chip specific implementations and other devices based on non-module components (e.g., end-user devices, vehicles, communication equipment, computing equipment, industrial equipment, retail / purchase equipment, medical equipment, artificial intelligence (AI) enabled devices, etc.). Although some examples may or may not specifically point to use cases or applications, the applicability of a wide range of described innovations may occur. The scope of specific implementations may range from chip-level or modular components to non-modular, non-chip-level specific implementations, and further to the scope of aggregated, distributed or original equipment manufacturer (OEM) devices or systems in conjunction with one or more aspects of the described innovations. In some practical environments, the equipment in conjunction with the various aspects and features described may also necessarily include additional components and features for implementing and practicing the various aspects claimed and described. For example, the transmission and reception of wireless signals necessarily include multiple components for analog and digital purposes (e.g., hardware components including antennas, radio frequency (RF) chains, power amplifiers, modulators, buffers, processors, interleavers, adders / summers, etc.). The innovations described herein are intended to be practiced in a variety of devices, chip-level components, systems, distributed arrangements, end-user devices, etc., having different sizes, shapes, and configurations. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] A further understanding of the nature and advantages of the present disclosure may be achieved by reference to the following drawings. In the drawings, similar components or features may have the same reference number. In addition, various components of the same type may be distinguished by adding a dash and a second label to distinguish between similar components after the reference number. If only the first reference number is used in the specification, the description applies to any of the similar components having the same first reference number, regardless of the second reference number.

[0022] Figure 1 is a block diagram illustrating details of an example wireless communication system in accordance with one or more aspects.

[0023] Figure 2 is a block diagram illustrating an example of a base station and a user equipment (UE) according to one or more aspects.

[0024] Figure 3 A diagram illustrating an example decomposed base station architecture in accordance with one or more aspects is shown.

[0025] Figure 4is a block diagram illustrating an example wireless communication system that supports reallocation of physical (PHY) layer resources allocated for wireless communication in accordance with one or more aspects.

[0026] Figure 5

[0013] An example of a reallocation message for reallocating PHY layer resources according to one or more aspects is illustrated.

[0027] Figure 6 is a flow chart illustrating an example process for supporting reallocation of PHY layer resources allocated for wireless communications in accordance with one or more aspects.

[0028] Figure 7 is a block diagram of an example UE that supports reallocation of PHY layer resources allocated for wireless communications in accordance with one or more aspects.

[0029] Figure 8 is a flow chart illustrating an example process for supporting reallocation of PHY layer resources allocated for wireless communications in accordance with one or more aspects.

[0030] Fig. 9 is a block diagram of an example base station that supports reallocation of PHY layer resources allocated for wireless communications in accordance with one or more aspects.

[0031] The same reference numbers and designations in different drawings represent the same elements. DETAILED DESCRIPTION

[0032] The specific embodiments described below in conjunction with the accompanying drawings are intended as descriptions of various configurations and are not intended to limit the scope of the present disclosure. Instead, the specific embodiments include specific details for providing a thorough understanding of the subject matter of the present invention. It will be apparent to those skilled in the art that these specific details are not required in every case, and in some instances, well-known structures and components are shown in block diagram form for clarity of presentation.

[0033] The present disclosure provides systems, devices, methods, and computer-readable media that support reallocation of physical (PHY) layer resources allocated for wireless communications. For example, the present disclosure describes techniques for a base station to communicate the reallocation of allocated communication resources using a cancellation indication that is higher level than time and frequency resources. In contrast, the techniques described herein support reallocation of PHY layer resources in the spatial domain, such as reallocation of one or more transport blocks (TBs), one or more rate split messages, one or more PHY layers, or a combination thereof. By canceling the allocation of PHY layer resources to user equipment (UE) scheduled to communicate lower priority services, the base station can make resources available in the spatial domain, thereby accommodating the communications of other UEs by multiplexing the communications of UEs in the spatial domain.

[0034] In some implementations, the reallocation of PHY layer resources may be communicated by modifying an existing resource reallocation message, such as a DL preemption message or an UL cancel message used by a UE to communicate the preemption or cancellation of time and frequency resources for downlink (DL) or uplink (UL) communications, respectively. For example, the resource reallocation message may include at least one indicator indicating the reallocation (e.g., preemption or cancellation) of one or more PHY layer resources allocated to the UE's communication. The at least one indicator may include a TB reallocation indicator, a rate split message reallocation indicator, a PHY layer reallocation indicator, or a combination thereof. For example, the resource allocation message may include an indicator for reallocating a single type of PHY layer resource. Alternatively, a single resource allocation message may include multiple different indicators for reallocating multiple different types of PHY layer resources using the same message. In some implementations, the at least one indicator includes one or more bits of the resource reallocation message, such as one or more bits of a specific field (e.g., a PHY layer resource field), one or more reserved bits, one or more fill bits, one or more bits of a different (e.g., unused) field, etc. In some such implementations, the at least one indicator is included in the resource allocation message in addition to one or more additional indicators for reallocating time and frequency resources allocated to the UE. Alternatively, the at least one indicator may not be included in the same resource allocation message as the indicator for reallocating time and frequency resources. In some such implementations, the at least one indicator may replace or be interpreted from an otherwise invalid value designated as an indicator for reallocating time and frequency resources.

[0035] The base station sends a resource reallocation message including at least one indicator to the UE to notify the UE of one or more PHY layer resources that have been reallocated from the UE to another network device (such as allocated to a higher priority service, such as an ultra-reliable low latency communication (URLLC) service). The UE may perform a response action based on the at least one indicator. For example, if the at least one indicator is included in the DL preemption message, the UE may determine that data that has been received via one or more PHY layer resources will not be completed, and therefore the UE may clear the receive (RX) buffer of the data received via the one or more PHY layer resources. As another example, if the at least one indicator is included in the UL cancellation message, the UE may determine that at least a portion of the upcoming UL grant is no longer valid, and the UE may suppress communication via the one or more PHY layer resources. As another example, if the at least one indicator is a PHY layer reallocation indicator, the UE may determine that one or more PHY layers are no longer allocated for communication, and the UE may recalculate the transport block size based on the change in the allocated resources. Since the base station releases one or more PHY layer resources, the base station can spatially multiplex the service to another device with the service to the UE via the remaining space resources, thereby improving the base station's ability to meet the quality of service (QoS) requirements of higher priority services. For example, the base station can communicate URLLC services with a network entity different from the UE via one or more PHY layer resources.

[0036] Specific implementations of the subject matter described in the present disclosure may be implemented to achieve one or more of the following potential advantages or benefits. In some aspects, the present disclosure provides techniques for supporting the reallocation of PHY layer resources allocated for wireless communications. The techniques described herein enable a base station to indicate to a UE that one or more PHY layer resources have been reallocated from the UE's communication to a communication with another network device, such as a communication of a higher priority service. This reallocation may be used to partially reallocate resources including multiple transport blocks or other PHY layer resources allocated by a DL grant or UL grant, or may be used to partially reallocate resources for a rate split configuration. By reallocating PHY layer resources, at least some communications (e.g., via the remaining PHY layer resources) may be used for communications with the UE, while other PHY layer resources are released to higher priority services, such as URLLC services. For example, a base station may spatially multiplex URLLC services to different network entities with services to the UE, thereby supporting stricter QoS requirements for URLLC services by completely canceling network resources allocated to the UE's communications without reducing the performance of the UE. Thus, the techniques described herein enable reallocation of network resources at a level different from the typical reallocation of time and frequency resources at the resource block (RB) or resource element (RE) level. In some implementations, the techniques described herein utilize the existing time and frequency resource reallocation messaging framework with only minor modifications, thereby supporting the reallocation of PHY layer resources for wireless communications with minimal modifications to existing wireless communication devices and communication frameworks.

[0037] The present disclosure as a whole relates to providing or participating in authorized shared access between two or more wireless devices in one or more wireless communication systems (also referred to as wireless communication networks). In various specific implementations, various techniques and devices can be used in 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, fifth generation (5G) or new radio (NR) networks (sometimes referred to as "5G NR" networks, systems or devices) and other communication networks. As described herein, the terms "network" and "system" can be used interchangeably.

[0038] A CDMA network may implement, for example, a radio technology such as Universal Terrestrial Radio Access (UTRA), cdma2000, etc. UTRA includes Wideband-CDMA (W-CDMA) and Low Chip Rate (LCR). CDMA2000 covers IS-2000, IS-95, and IS-856 standards.

[0039] For example, a TDMA network may implement a radio technology such as the Global System for Mobile Communications (GSM). The 3rd Generation Partnership Project (3GPP) defines the standards for the GSM EDGE (Enhanced Data Rates for GSM Evolution) Radio Access Network (RAN) (also known as GERAN). GERAN is the radio component of the network of GSM / EDGE together with connecting base stations (e.g., Ater and Abis interfaces) and base station controllers (A interfaces, etc.). The radio access network represents the component of the GSM network through which telephone calls and packet data are routed from the public switched telephone network (PSTN) and the Internet to subscriber phones (also known as user terminals or user equipment (UE)) and from subscriber phones to the PSTN and the Internet. The network of a mobile phone operator may include one or more GERANs, which may be coupled with the UTRAN in the case of a UMTS / GSM network. Additionally, the operator network may also include one or more LTE networks, or one or more other networks. Various network types may use different radio access technologies (RATs) and RANs.

[0040] OFDMA network can implement 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 GSM are part of Universal Mobile Telecommunications System (UMTS). Specifically, Long Term Evolution (LTE) is a version of UMTS 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 radio technologies and standards are known or under development. For example, 3GPP is a collaboration between telecommunications association groups to define a globally applicable third generation (3G) mobile phone specification. 3GPP LTE is a 3GPP plan to improve the UMTS mobile phone standard. 3GPP can define the specifications of next generation mobile networks, mobile systems and mobile devices. The present disclosure may describe certain aspects with reference to LTE, 4G or 5G NR technology; however, the description is not intended to be limited to a particular technology or application, and one or more aspects described with reference to one technology may be understood to be applicable to another technology. Additionally, one or more aspects of the present disclosure may relate to shared access to wireless spectrum between networks using different radio access technologies or radio air interfaces.

[0041] 5G networks are expected to have diverse deployments, diverse spectrum, and diverse 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 5GNR networks, further enhancements to LTE and LTE-A are also being considered. 5GNR will be able to scale to provide coverage (1) to massive Internet of Things (IoT), with ultra-high density (e.g., about 1M nodes / km 2 ), ultra-low complexity (e.g., about 10s of bits / second), ultra-low power consumption (e.g., about 10+ years of battery life), and deep coverage with the ability to reach challenging locations; (2) including mission-critical control with strong security to protect sensitive personal, financial, or classified information, ultra-high reliability (e.g., about 99.9999% reliability), ultra-low latency (e.g., about 1 millisecond (ms)), and users with a wide range of mobility or lack of mobility; and (3) providing services with enhanced mobile broadband (including very high capacity (e.g., about 10Tbps / 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.

[0042] Devices, networks, and systems may be configured to communicate via one or more portions of the electromagnetic spectrum. The electromagnetic spectrum is typically subdivided into various categories, bands, channels, etc. based on frequency / wavelength. In 5G NR, two initial operating bands have been identified as frequency ranges designated FR1 (410 MHz to 7.125 GHz) and FR2 (24.25 GHz to 52.6 GHz). Frequencies between FR1 and FR2 are typically referred to as mid-band frequencies. Although a portion of FR1 is greater than 6 GHz, FR1 is often referred to (interchangeably) as the "below 6 GHz" band in various documents and articles. Similar naming issues sometimes arise for FR2, which is often (interchangeably) referred to as the "millimeter wave" (mmWave) band in documents and articles, although it is different from the extremely high frequency (EHF) band (30 GHz to 300 GHz) identified as the "mmWave" band by the International Telecommunication Union (ITU).

[0043] In view of the above aspects, unless otherwise specifically stated, it should be understood that if used in this document, the term "below 6 GHz" and the like can broadly refer to frequencies that may be less than 6 GHz, may be within FR1, or may include mid-band frequencies. In addition, unless otherwise specifically stated, it should be understood that if used in this document, the term "mmWave" and the like can broadly refer to frequencies that may include mid-band frequencies, may be within FR2, or may be within the EHF band.

[0044] 5G NR devices, networks, and systems may be implemented using optimized OFDM-based waveform features. These features may include scalable parameter sets and transmit time intervals (TTIs); a common flexible framework that efficiently multiplexes services and features using dynamic, low-latency time division duplex (TDD) designs or frequency division duplex (FDD) designs; and advanced wireless technologies such as massive multiple-input multiple-output (MIMO), robust 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 the operation of various services across different spectrums and different deployments. For example, in various outdoor and macro coverage deployments of less than 3GHz FDD or TDD implementations, the subcarrier spacing may appear at 15kHz, such as over bandwidths of 1MHz, 5MHz, 10MHz, 20MHz, etc. For various other outdoor and small cell coverage deployments with TDD greater than 3GHz, the subcarrier spacing may appear at 30kHz over 80MHz / 100MHz bandwidth. For various other indoor broadband implementations, using TDD on the unlicensed portion of the 5GHz band, the subcarrier spacing may occur at 60kHz over a 160MHz bandwidth. Finally, for various deployments transmitting over mmWave components at 28GHz TDD, the subcarrier spacing may occur at 120kHz over a 500MHz bandwidth.

[0045] 5G NR's scalable parameter set facilitates scalable TTI for diverse 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 anticipates a self-contained integrated subframe design where uplink or downlink scheduling information, data, and acknowledgments are in the same subframe. The self-contained integrated subframe supports communications in unlicensed or contention-based shared spectrum, and adaptive uplink or downlink can be flexibly configured on a per-cell basis to dynamically switch between uplink and downlink to meet current business needs.

[0046] For clarity, certain aspects of devices and techniques may be described below with reference to example 5G NR implementations or in a 5G-centric manner, and 5G terminology may be used as illustrative examples in portions of the description below; however, the description is not intended to be limited to 5G applications.

[0047] Furthermore, it should be understood that in operation, a wireless communication network adapted according to the concepts herein can operate using any combination of licensed or unlicensed spectrum depending on load and availability. Accordingly, it will be apparent to one of ordinary skill in the art that the systems, devices, and methods described herein can be applied to other communication systems and applications beyond the specific examples provided.

[0048] Although various aspects and specific implementations are described in this application by the illustration of some examples, it will be understood by those skilled in the art that additional specific implementations and use cases may be generated in many different arrangements and scenarios. The innovation described herein can be implemented across many different platform types, devices, systems, shapes, sizes, and packaging arrangements. For example, specific implementation or use can be implemented via integrated chip specific implementation or other devices based on non-module components (e.g., end-user devices, vehicles, communication equipment, computing equipment, industrial equipment, retail equipment or purchasing equipment, medical equipment, AI-enabled devices, etc.). Although some examples may or may not specifically point to use cases or applications, the applicability of a wide range of described innovations may occur. The scope of specific implementation can range from chip-level or modular components to non-modular, non-chip-level specific implementations, and further to aggregated, distributed, or original equipment manufacturer (OEM) devices or systems containing one or more described aspects. In some practical environments, the equipment in combination with the various aspects and features described may also necessarily include additional components and features for implementing and practicing the various aspects claimed and described. It is intended that the innovations described herein may be implemented in a wide variety of embodiments of different sizes, shapes, and configurations, including both large and small devices, chip-level components, multi-component systems (e.g., radio frequency (RF) chains, communication interfaces, processors), distributed arrangements, end-user devices, and the like.

[0049] Figure 1 1 is a block diagram illustrating details of an example wireless communication system according to one or more aspects. The wireless communication system may include a wireless network 100. The wireless network 100 may, for example, include a 5G wireless network. As will be appreciated by those skilled in the art, Figure 1 Components appearing in are likely to have related corresponding components in other network arrangements (including, for example, cellular-style network arrangements and non-cellular-style network arrangements (e.g., device-to-device or peer-to-peer or ad hoc network arrangements, etc.)).

[0050] Figure 1The illustrated wireless network 100 includes many base stations 105 and other network entities. A base station may be a station that communicates with a UE, and may also be referred to as an evolved Node B (eNB), a next generation eNB (gNB), an access point, etc. Each base station 105 may provide communication coverage for a specific geographic area. In 3GPP, the term "cell" may refer to a specific geographic coverage area of ​​a base station or a base station subsystem serving the coverage area, depending on the context in which the term is used. In the specific implementation of the wireless network 100 herein, the base station 105 may be associated with the same operator or different operators (e.g., the wireless network 100 may include multiple operator wireless networks). Additionally, in the specific implementation of the wireless network 100 herein, the base station 105 may provide wireless communication using one or more frequencies (e.g., one or more frequency bands in a licensed spectrum, an unlicensed spectrum, or a combination thereof) in the same frequency as an adjacent cell. In some examples, a separate base station 105 or UE 115 may be operated by more than one network operating entity. In some other examples, each base station 105 and UE 115 may be operated by a single network operating entity.

[0051] A base station may provide communication coverage for a macro cell or a small cell (such as a pico cell or a femto cell), or other types of cells. A macro cell generally covers a relatively large geographic area (e.g., several kilometers in radius) and may allow unrestricted access by UEs with a service subscription with a network provider. A small cell (such as a pico cell) will generally cover a relatively small geographic area and may allow unrestricted access by UEs with a service subscription with a network provider. A small cell (such as a femto cell) 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 cell (e.g., UEs in a closed subscriber group (CSG), UEs of users in a home, etc.). A base station for a macro cell may be referred to as a macro base station. A base station for a small cell may be referred to as a small cell base station, a pico base station, a femto base station, or a home base station. In Figure 1 In the example shown, base stations 105d and 105e are conventional macro base stations, while base stations 105a to 105c are macro base stations implemented using one of 3-dimensional (3D), full-dimensional (FD), or massive MIMO. Base stations 105a to 105c use their higher-dimensional MIMO capabilities to employ 3D beamforming in elevation and azimuth beamforming to increase coverage and capacity. Base station 105f is a small cell base station, which can be a home node or a portable access point. The base station can support one or more (e.g., two, three, four, etc.) cells.

[0052] Wireless network 100 may support synchronous or asynchronous operation. For synchronous operation, base stations may have similar frame timing, and transmissions from different base stations may be approximately aligned in time. For asynchronous operation, base stations may have different frame timing, and transmissions from different base stations may not be aligned in time. In some cases, the network may be enabled or configured to handle dynamic switching between synchronous or asynchronous operation.

[0053] UE 115 is dispersed throughout the wireless network 100, and each UE may be stationary or mobile. It should be understood that, although in the standards and specifications promulgated by 3GPP, mobile devices are generally referred to as UEs, such devices may be additionally or otherwise referred to as mobile stations (MS), subscriber stations, mobile units, subscriber units, wireless units, remote units, mobile devices, wireless devices, wireless communication devices, remote devices, mobile subscriber stations, access terminals (AT), mobile terminals, wireless terminals, remote terminals, mobile phones, terminals, user agents, mobile clients, clients, gaming devices, augmented reality devices, vehicle components, vehicle devices or vehicle modules or some other suitable terminology by those skilled in the art. In this document, a "mobile" device or UE does not necessarily have the ability to move and may be stationary. Some non-limiting examples of mobile devices, such as may include one or more specific implementations of UE 115, include mobile phones, cellular phones, smart phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, laptops, personal computers (PCs), notebooks, netbooks, smart books, tablet devices, and personal digital assistants (PDAs). The mobile device may additionally be an IoT or "Internet of Everything" (IoE) device, such as a car or other transportation vehicle, a satellite radio, a global positioning system (GPS) device, a global navigation satellite system (GNSS) device, a logistics controller, a drone, a multi-rotor helicopter, a quad-rotor helicopter, a smart energy or security device, a solar panel or solar array, city lighting, tap water or other infrastructure; industrial automation and enterprise equipment; consumer and wearable devices, such as glasses, wearable cameras, smart watches, health or fitness trackers, mammal implantable devices, gesture tracking devices, medical devices, digital audio players (e.g., MP3 players), cameras, game consoles, etc.; and digital home or smart home devices, such as home audio, video and multimedia devices, appliances, sensors, vending machines, smart lighting, home security systems, smart meters, etc. In one aspect, the UE may be a device including a universal integrated circuit card (UICC). In another aspect, the UE may be a device that does not include a UICC. In some aspects, a UE that does not include a UICC may also be referred to as an IoE device. Figure 1The illustrated specific implementation UEs 115a to 115d are examples of mobile smartphone-type devices accessing the wireless network 100. A UE may also be a machine specifically configured for connected communications, including machine type communications (MTC), enhanced MTC (eMTC), narrowband IoT (NB-IoT), etc. Figure 1 The illustrated UEs 115e through 115k are examples of various machines configured for communication that access the wireless network 100.

[0054] A mobile device, such as UE 115, may be able to communicate with any type of base station, whether macro, pico, femto, relay, etc. Figure 1 In the figure, the communication link (represented as lightning) indicates a wireless transmission between the UE and the serving base station (which is a base station designated to serve the UE on the downlink or uplink) or an expected transmission between base stations and a backhaul transmission between base stations. The UE may operate as a base station or other network node in some scenarios. Backhaul communications between base stations of the wireless network 100 may be performed using wired or wireless communication links.

[0055] In operation, at the wireless network 100, base stations 105a to 105c use 3D beamforming and collaborative spatial techniques (such as coordinated multi-point (CoMP) or multi-connectivity) to serve UEs 115a and 115b. Macro base station 105d performs backhaul communications with base stations 105a to 105c and small cells (base station 105f). Macro base station 105d also transmits multicast services that are subscribed to and received by UEs 115c and 115d. 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.

[0056] The wireless network 100 of the specific implementation supports mission-critical communications with ultra-reliable and redundant links for mission-critical devices such as UE 115e as drones. The redundant communication links with UE 115e include links from macro base stations 105d and 105e and small cell base station 105f. Other machine-type devices such as UE 115f (thermometer), UE 115g (smart meter) and UE 115h (wearable device) can communicate directly with base stations such as small cell base station 105f and macro base station 105e through the wireless 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 then reports it to the network through small cell base station 105f. The wireless network 100 may also provide additional network efficiency through dynamic, low-latency TDD communications or low-latency FDD communications, such as in a vehicle-to-vehicle (V2V) mesh network between UEs 115i to 115k communicating with a macro base station 105e.

[0057] The base stations 105 may communicate with the core network 130 and with each other. For example, the base stations 105 may interface with the core network 130 via a backhaul link 132 (e.g., via S1, N2, N3, or other interfaces). The base stations 105 may communicate with each other directly (e.g., directly between the base stations 105) or indirectly (e.g., via the core network 130) via a backhaul link (e.g., via X2, Xn, or other interfaces).

[0058] The core network 130 may provide user authentication, access authorization, tracking, Internet Protocol (IP) connections, and other access, routing or mobility functions. The core network 130 may be an evolved packet core (EPC), which may include at least one mobile management entity (MME), at least one serving gateway (S-GW), and at least one packet data network (PDN) gateway (P-GW). The MME may manage non-access stratum (e.g., control plane) functions such as mobility, authentication, and bearer management of UE 115 served by a base station 105 associated with the EPC. User IP packets may be delivered through the S-GW, which itself may be connected to the P-GW. The P-GW may provide IP address allocation and other functions. The P-GW may be connected to a network operator IP service. The operator IP service may include access to the Internet, an intranet, an IP multimedia subsystem (IMS), or a packet switched (PS) streaming service.

[0059] In some implementations, the core network 130 includes or is coupled to a location management function (LMF), which is an entity in the 5G core network (5GC) that supports various functionalities, such as managing support for different location services for one or more UEs. For example, the LMF may include one or more servers, such as multiple distributed servers. The base station 105 may forward location messages to the LMF and may communicate with the LMF via the NR Positioning Protocol A (NRPPa). The LMF is configured to control the positioning parameters of the UE 115, and the LMF may provide information to the base station 105 and the UE 115 so that actions can be taken at the UE 115. In some implementations, the UE 115 and the base station 105 are configured to communicate with the LMF via an access and mobility management function (AMF).

[0060] Figure 2 1 is a block diagram illustrating an example of a base station 105 and a UE 115 according to one or more aspects. The base station 105 and the UE 115 may be Figure 1 For a restricted association scenario (as described above), base station 105 may be any one of the base stations in the UE and one of the UEs. Figure 1 The small cell base station 105f in the example shown in FIG. 105 and the UE 115 may be a UE 115c or 115d operating in the service area of ​​the base station 105f, which will be included in the list of accessible UEs of the small cell base station 105f in order to access the small cell base station 105f. The base station 105 may also be some other type of base station. Figure 2 As shown, the base station 105 may be equipped with antennas 234a through 234t, and the UE 115 may be equipped with antennas 252a through 252r for facilitating wireless communications.

[0061] At the base station 105, the transmit processor 220 may receive data from the data source 212 and control information from the controller 240 (such as a processor). The control information may be for a physical broadcast channel (PBCH), a physical control format indicator channel (PCFICH), a physical hybrid ARQ (automatic repeat request) indicator channel (PHICH), a physical downlink control channel (PDCCH), an enhanced physical downlink control channel (EPDCCH), an MTC physical downlink control channel (MPDCCH), etc. The data may be for a physical downlink shared channel (PDSCH), etc. Additionally, the transmit processor 220 may process (e.g., encode and symbol map) the data and the control information, respectively, to obtain data symbols and control symbols. The transmit processor 220 may also generate reference symbols, such as for a primary synchronization signal (PSS) and a secondary synchronization signal (SSS), and a cell-specific reference signal. The transmit (TX) MIMO processor 230 may perform spatial processing (e.g., pre-coding) on ​​data symbols, control symbols, or reference symbols, if applicable, and may provide output symbol streams to modulators (MODs) 232a to 232t. For example, the spatial processing performed on the data symbols, control symbols, or reference symbols may include pre-coding. Each modulator 232 may process a corresponding output symbol stream (e.g., for OFDM, etc.) to obtain an output sample stream. Additionally or alternatively, each modulator 232 may process the output sample stream (e.g., analog-convert, amplify, filter, and up-convert) to obtain a downlink signal. The downlink signals from modulators 232a to 232t may be transmitted via antennas 234a to 234t, respectively.

[0062] At the UE 115, antennas 252a to 252r may receive downlink signals from the base station 105 and may provide received signals to demodulators (DEMODs) 254a to 254r, respectively. Each demodulator 254 may condition (e.g., filter, amplify, downconvert, and digitize) a corresponding received signal to obtain input samples. Each demodulator 254 may further process the input samples (e.g., for OFDM, etc.) to obtain received symbols. A MIMO detector 256 may obtain received symbols from the demodulators 254a to 254r, perform MIMO detection on the received symbols when necessary, and provide detected symbols. A receive processor 258 may process (e.g., demodulate, deinterleave, and decode) the detected symbols, provide decoded data for the UE 115 to a data sink 260, and provide decoded control information to a controller 280 (such as a processor).

[0063] On the uplink, at the UE 115, the transmit processor 264 may receive and process data from a data source 262 (e.g., for a physical uplink shared channel (PUSCH)) and control information from a controller 280 (e.g., for a physical uplink control channel (PUCCH)). Additionally, the transmit processor 264 may also generate reference symbols for reference signals. The symbols from the transmit processor 264 may be pre-decoded by the TX MIMO processor 266, if necessary, further processed by the modulators 254a through 254r (e.g., for SC-FDM, etc.), and transmitted to the base station 105. At the base station 105, the uplink signal from the UE 115 may be received by the antenna 234, processed by the demodulator 232, detected by the MIMO detector 236, if necessary, and further processed by the receive processor 238 to obtain decoded data and control information transmitted by the UE 115. Receive processor 238 may provide the decoded data to a data sink 239 and the decoded control information to controller 240 .

[0064] The controllers 240 and 280 may direct the operation at the base station 105 and the UE 115, respectively. The controller 240 or other processors and modules at the base station 105, or the controller 280 or other processors and modules at the UE 115 may perform or direct the execution of various processes for the techniques described herein, such as performing or directing Figure 6 and Figure 8 The execution shown or other processes for the techniques described herein. Memories 242 and 282 can store data and program codes for base station 105 and UE 115, respectively. Scheduler 244 can schedule UEs for data transmission on the downlink or uplink.

[0065] In some cases, the UE 115 and the base station 105 may operate in a shared radio spectrum band, which may include licensed or unlicensed (e.g., contention-based) spectrum. In the unlicensed frequency portion of the shared radio spectrum band, the UE 115 or the base station 105 may traditionally perform a medium sensing process to compete for access to the spectrum. For example, the UE 115 or the base station 105 may perform a listen-before-talk or listen-before-send (LBT) process (such as a clear channel assessment (CCA)) before communicating to determine whether the shared channel is available. In some specific implementations, the CCA may include an energy detection process to determine whether there are any other active transmissions. For example, the device may infer that a change in the received signal strength indicator (RSSI) of the power meter indicates that the channel is occupied. Specifically, a signal power concentrated in a certain bandwidth and exceeding a predetermined noise floor may indicate another wireless transmitter. CCA may also include detection of a specific sequence indicating the use of the channel. For example, another device may send a specific preamble before sending a data sequence. In some cases, the LBT process may include the wireless node adjusting its own backoff window based on the amount of energy detected on the channel or acknowledgement / negative acknowledgement (ACK / NACK) feedback for its own transmitted packets (as a manifestation of a collision).

[0066] Figure 3 A diagram illustrating an example decomposed base station 300 architecture is shown. The decomposed base station 300 architecture may include one or more central units (CUs) 310 that may communicate directly with a core network 320 via a backhaul link, or indirectly with the core network 320 through one or more decomposed base station units, such as a near real-time (near-RT) RAN intelligent controller (RIC) 325 via an E2 link, or a non-real-time (non-RT) RIC 315 associated with a service management and orchestration (SMO) framework 305, or both. The core network 130 may include or correspond to the core network 130. The CU 310 may communicate with one or more distributed units (DUs) 330 via respective midhaul links, such as an F1 interface. The DU 330 may communicate with one or more radio units (RUs) 340 via respective fronthaul links. The RU 340 may communicate with respective UEs 115 via one or more radio frequency (RF) access links. In some implementations, a UE 115 may be served simultaneously by multiple RUs 340.

[0067] Each of the units (i.e., CU 310, DU 330, RU 340, and near-RT RIC 325, non-RT RIC 315, and SMO framework 305) may include or be coupled to one or more interfaces configured to receive or send signals, data, or information (collectively referred to as signals) via a wired or wireless transmission medium. Each of the units or an associated processor or controller that provides instructions to the communication interface of 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, a transmitter, or a 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.

[0068] In some aspects, CU 310 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 can be implemented using an interface that is configured to communicate signals with other control functions hosted by CU 310. CU310 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 310 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 310 may be implemented to communicate with DU 330 for network control and signaling.

[0069] DU 330 may correspond to a logical unit that includes one or more base station functions for controlling the operation of one or more RUs 340. In some aspects, DU 330 may host one or more of a radio link control (RLC) layer, a medium access control (MAC) layer, and one or more high physical (PHY) layers (such as modules for forward error correction (FEC) encoding and decoding, scrambling, modulation and demodulation, etc.) at least in part according to functional splits such as those defined by the 3rd Generation Partnership Project (3GPP). In some aspects, DU 330 may also host one or more low PHY layers. Each layer (or module) may be implemented using an interface that is configured to communicate signals with other layers (and modules) hosted by DU 330 or with control functions hosted by CU 310.

[0070] The lower layer functionality may be implemented by one or more RUs 340. In some deployments, a RU 340 controlled by a DU 330 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 340 may be implemented to handle over-the-air (OTA) communications with one or more UEs 115. In some implementations, real-time and non-real-time aspects of control plane and user plane communications with the RU 340 may be controlled by the corresponding DU 330. In some scenarios, this configuration may enable the implementation of the DU 330 and the CU 310 in a cloud-based RAN architecture (such as a vRAN architecture).

[0071] The SMO framework 305 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 305 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 305 may be configured to interact with a cloud computing platform (such as an open cloud (O-Cloud) 390) to perform network element lifecycle management (such as to instantiate 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 310, DU 330, RU 340, and near-RT RIC 325. In some specific implementations, the SMO framework 305 may communicate with hardware aspects of the 4G RAN (such as an open eNB (O-eNB) 311) via the O1 interface. In addition, in some specific implementations, the SMO framework 305 may communicate directly with one or more RUs 340 via the O1 interface. The SMO framework 305 may also include a non-RT RIC 315 configured to support the functionality of the SMO framework 305 .

[0072] The non-RT RIC 315 may be configured to include logic functions that implement 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 325. The non-RT RIC 315 may be coupled to or in communication with the near-RT RIC 325 (such as via an A1 interface). The near-RT RIC 325 may be configured to include logic functions that implement 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 310, one or more DUs 330, or both, and the O-eNB with the near-RT RIC 325.

[0073] In some implementations, in order to generate an artificial intelligence / machine learning (AI / ML) model to be deployed in the near-RT RIC 325, the non-RT RIC 315 may receive parameters or external enrichment information from an external server. Such information may be utilized by the near-RT RIC 325 and may be received from a non-network data source or from a network function at the SMO framework 305 or the non-RT RIC 315. In some examples, the non-RT RIC 315 or the near-RT RIC 325 may be configured to tune RAN behavior or performance. For example, the non-RT RIC 315 may monitor long-term trends and patterns of performance and employ AI / ML models to perform corrective actions through the SMO framework 305 (such as via reconfiguration of O1) or via creation of RAN management policies (such as A1 policies).

[0074] As described herein, a node (which may be referred to as a node, a network node, a network entity, or a wireless node) may include, may be, or may be included in (e.g., as a component of) a base station (e.g., any base station described herein), a transmit receive point (TRP), a UE (e.g., any UE described herein), a network controller, an apparatus, a device, a computing system, an integrated access and backhaul (IAB) node, a distributed unit (DU), a central unit (CU), a remote unit (RU), a core network, an LFM, and / or another processing entity configured to perform any of the techniques described herein. For example, the network node may be a UE. For another example, the network node may be a base station or a network entity. For another example, a first network node may be configured to communicate with a second network node or a third network node. In one aspect of this example, the first network node may be a UE, the second network node may be a base station, and the third network node may be a UE. In another aspect of this example, the first network node may be a UE, the second network node may be a base station, and the third network node may be a base station. In yet other aspects of this example, the first network node, the second network node, and the third network node may be different relative to these examples. Similarly, references to UE, base station, device, equipment, computing system, etc. may include disclosure of UE, base station, device, equipment, computing system, etc. as a network node. For example, a disclosure that a UE is configured to receive information from a base station also discloses that a first network node is configured to receive information from a second network node. Consistent with the present disclosure, once a specific example is expanded according to the present disclosure (e.g., a UE is configured to receive information from a base station also discloses that a first network node is configured to receive information from a second network node), a broader example of a narrower example may be interpreted in reverse, but in a broad, open-ended manner. In the above example that a UE is configured to receive information from a base station also discloses that a first network node is configured to receive information from a second network node, the first network node may refer to a first UE, a first base station, a first device, a first device, a first computing system, a first one or more components, a first processing entity, etc. configured to receive information; and the second network node may refer to a second UE, a second base station, a second device, a second device, a second computing system, a second one or more components, a second processing entity, etc.

[0075] As described herein, different terms may be used in various aspects to describe the communication of information (e.g., any information, signal, etc.). Disclosure of one communication term includes disclosure of other communication terms. For example, a first network node may be described as being configured to send information to a second network node. In this example and consistent with the present disclosure, disclosure that the first network node is configured to send information to the second network node includes disclosure that the first network node is configured to provide, transmit, output, communicate, or send information to the second network node. Similarly, in this example and consistent with the present disclosure, disclosure that the first network node is configured to send information to the second network node includes disclosure that the second network node is configured to receive, obtain, or decode information provided, transmitted, output, communicated, or sent by the first network node.

[0076] Figure 4 4 is a block diagram of an example wireless communication system 400 that supports reallocation of PHY layer resources allocated for wireless communication according to one or more aspects. In some examples, the wireless communication system 400 can implement aspects of the wireless network 100. The wireless communication system 400 includes a UE 115, a base station 105, and a UE 490. Although two UEs (e.g., UE 115 and UE 490) and one base station 105 are illustrated, in some other implementations, the wireless communication system 400 may generally include one UE or more than two UEs, and may include more than one base station 105.

[0077] UE 115 may include various components (such as structures, hardware components) for performing one or more functions described herein. For example, these components may include one or more processors 402 (hereinafter collectively referred to as "processor 402"), one or more memory devices 404 (hereinafter collectively referred to as "memory 404"), one or more transmitters 416 (hereinafter collectively referred to as "transmitters 416"), and one or more receivers 318 (hereinafter collectively referred to as "receivers 418"). In some specific implementations, UE 115 may include an interface (e.g., a communication interface) including transmitter 416, receiver 418, or a combination thereof. Processor 402 may be configured to execute instructions 405 stored in memory 404 to perform the operations described herein. In some specific implementations, processor 402 includes or corresponds to one or more of receiving processor 258, transmitting processor 264, and controller 280, and memory 404 includes or corresponds to memory 282.

[0078] The memory 404 includes or is configured to store instructions 405, an RX buffer 406, and a transport block size 408. The RX buffer 406 includes or corresponds to a buffer configured to temporarily store DL data received by the UE 115 for processing by the processor 402. The transport block size 408 indicates the size of one or more transport blocks scheduled for communication for the UE 115. In some implementations, the transport block size 408 is based on the allocated PHY layer and the available antenna ports at the UE 115, as further described herein.

[0079] The transmitter 416 is configured to send reference signals, control information, and data to one or more other devices, and the receiver 418 is configured to receive reference signals, synchronization signals, control information, and data from one or more other devices. For example, the transmitter 416 may send signaling, control information, and data to the base station 105, and the receiver 418 may receive signaling, control information, and data from the base station. In some implementations, the transmitter 416 and the receiver 418 may be integrated into one or more transceivers. Additionally or alternatively, the transmitter 416 or the receiver 418 may include or correspond to a reference signal. Figure 2 One or more components of UE 115 are described.

[0080] In some implementations, the UE 115 may include one or more antenna arrays. The one or more antenna arrays may be coupled to a transmitter 416, a receiver 418, or a communication interface. The one or more antenna arrays may include multiple antenna elements configured to perform wireless communications with other devices (such as with a base station 105). In some implementations, the one or more antenna arrays may be configured to perform wireless communications using different beams (also referred to as antenna beams). The beams may include a TX beam and an RX beam. For illustration, the one or more antenna arrays may include multiple independent antenna element sets (or subsets) (or multiple separate antenna arrays), and each antenna element set of the one or more antenna arrays may be configured to communicate using a different corresponding beam, which may have a corresponding direction different from that of the other beams. For example, a first antenna element set of the one or more antenna arrays may be configured to communicate via a first beam having a first direction, and a second antenna element set of the one or more antenna arrays may be configured to communicate via a second beam having a second direction. In other implementations, the one or more antenna arrays may be configured to communicate via more than two beams. Alternatively, one or more sets of antenna elements of the one or more antenna arrays may be configured to concurrently generate multiple beams, for example using multiple RF chains of UE 115. Each separate set (or subset) of antenna elements may include multiple antenna elements, such as two antenna elements, four antenna elements, ten antenna elements, twenty antenna elements, or any other number of antenna elements greater than two. Although described as one or more antenna arrays, in other implementations, the one or more antenna arrays may include or correspond to multiple antenna panels, and each antenna panel may be configured to communicate using a different corresponding beam.

[0081] UE 115 may include a Figures 1 to 3 In addition, UE 490 may include one or more components as described above with reference to UE 115. In some specific implementations, UE 115, UE 490, or both are 5G-capable UEs, 6G-capable UEs, or a combination thereof.

[0082] The base station 105 may include various components (such as structural components, hardware components) for performing one or more functions described herein. For example, these components may include one or more processors 452 (hereinafter collectively referred to as "processor 452"), one or more memory devices 454 (hereinafter collectively referred to as "memory 454"), one or more transmitters 456 (hereinafter collectively referred to as "transmitters 456"), and one or more receivers 458 (hereinafter collectively referred to as "receivers 458"). In some specific implementations, the base station 105 may include an interface (e.g., a communication interface) including the transmitter 456, the receiver 458, or a combination thereof. The processor 452 may be configured to execute instructions 460 stored in the memory 454 to perform the operations described herein. In some specific implementations, the processor 452 includes or corresponds to one or more of the receive processor 238, the transmit processor 220, and the controller 240, and the memory 454 includes or corresponds to the memory 242.

[0083] Memory 454 includes or is configured to store instructions 460 and at least one reallocation indicator (referred to herein as “reallocation indicator 462”). Reallocation indicator 462 indicates a reallocation of one or more PHY layer resources previously allocated in a communication grant (such as a DL grant or an UL grant). Reallocation indicator 462 may indicate a reallocation of one or more types of PHY layer resources. Figure 4 In the example shown, the reallocation indicator 462 includes a TB reallocation indicator 464, a rate split message reallocation indicator 466, a PHY layer reallocation indicator 468, or a combination thereof. The TB reallocation indicator 464 enables indicating the reallocation of one or more TBs previously granted (e.g., a multi-TB grant), the rate split message reallocation indicator 466 enables indicating the reallocation of one or more rate split messages previously granted, and the PHY layer reallocation indicator 468 enables indicating the reallocation of one or more PHY layers previously granted. In some implementations, the reallocation indicator 462 indicates the reallocation of a single type of PHY layer resource and includes only one of the TB reallocation indicator 464, the rate split message reallocation indicator 466, or the PHY layer reallocation indicator 468. In some other implementations, the reallocation indicator 462 indicates reallocation of multiple types of PHY layer resources and includes more or all of a TB reallocation indicator 464 , a rate split message reallocation indicator 466 , and a PHY layer reallocation indicator 468 .

[0084] The transmitter 456 is configured to send reference signals, synchronization signals, control information, and data to one or more other devices, and the receiver 458 is configured to receive reference signals, control information, and data from one or more other devices. For example, the transmitter 456 may send signaling, control information, and data to the UE 115, and the receiver 458 may receive signaling, control information, and data from the UE. In some implementations, the transmitter 456 and the receiver 458 may be integrated into one or more transceivers. Additionally or alternatively, the transmitter 456 or the receiver 458 may include or correspond to a reference signal. Figure 2 One or more components of a base station 105 are described.

[0085] In some implementations, the base station 105 may include one or more antenna arrays. The one or more antenna arrays may include multiple antenna elements configured to perform wireless communications with other devices (such as with UE 115). In some implementations, the one or more antenna arrays may be configured to perform wireless communications using different beams (also referred to as antenna beams). The beams may include TX beams and RX beams. For illustration, the one or more antenna arrays may include multiple independent antenna element sets (or subsets) (or multiple separate antenna arrays), and each antenna element set of the one or more antenna arrays may be configured to communicate using different corresponding beams, which may have corresponding directions different from other beams. For example, the first antenna element set of the one or more antenna arrays may be configured to communicate via a first beam having a first direction, and the second antenna element set of the one or more antenna arrays may be configured to communicate via a second beam having a second direction. In other implementations, the one or more antenna arrays may be configured to communicate via more than two beams. Alternatively, the one or more antenna element sets of the one or more antenna arrays may be configured to concurrently generate multiple beams, for example using multiple RF chains of the base station 105. Each separate set (or subset) of antenna elements may include multiple antenna elements, such as two antenna elements, four antenna elements, ten antenna elements, twenty antenna elements, or any other number of antenna elements greater than two. Although described as one or more antenna arrays, in other specific implementations, the one or more antenna arrays may include or correspond to multiple antenna panels, and each antenna panel may be configured to communicate using a different corresponding beam.

[0086] Although described as including a base station 105, the wireless communication system 400 may alternatively or additionally include one or more network entities. The network entity may include a base station 105, a modem, a router (e.g., a wireless router), a core network 130, a LMF, or a combination thereof. In some implementations, the network entity may be configured to perform one or more operations described herein with reference to the base station 105. Additionally or alternatively, the network entity may be configured to communicate with the base station 105.

[0087] In some implementations, the wireless communication system 400 implements a 5G NR network. For example, the wireless communication system 400 may include a plurality of 5G-capable UEs 115 and 490 and a plurality of 5G-capable base stations 105, such as UEs and base stations configured to operate according to a 5G NR network protocol such as defined by 3GPP. In some other implementations, the wireless communication system 400 implements a 6G network.

[0088] During operation of the wireless communication system 400, the base station 105 schedules one or more network devices to communicate via the wireless communication system 400 (such as UE 115 or UE 490). To indicate the scheduling, the base station 105 communicates the allocation of network resources to the network device via one or more DL grants or UL grants. For example, the base station 105 may transmit a DL grant or a UL grant to the UE 115 to allocate network resources to the DL or UL communication of the UE 115. The allocation of resources may include time and frequency resources and PHY layer resources. For example, a DL or UL grant may allocate multiple TBs to a network device for wireless communication. As another example, a DL or UL grant may allocate multiple rate split messages to a network device for wireless communication. As another example, a DL or UL grant may allocate multiple PHY layers to a network device for communication via multiple antenna ports.

[0089] After allocating one or more PHY resources to the communication of UE 115 and communicating the allocation to UE 115 via a corresponding grant, base station 105 may determine to reallocate one or more PHY layer resources allocated to the communication of UE 115. For example, in order to meet the requirements of a higher priority communication protocol (such as URLLC) utilized by UE 490, base station 105 may determine that network resources need to be allocated for one or more communications. Based on determining that the priority of the communication protocol utilized by UE 115 is lower than the communication protocol utilized by UE 490, base station 105 may determine to reallocate previously allocated communication resources (particularly PHY layer resources) from UE 115 to UE 490. For example, UE 490 may communicate with base station 105 using a URLLC protocol that has more stringent QoS requirements or other requirements than a non-URLLC protocol used by UE 115 to communicate with base station 105. As an illustrative example, it is expected that URLLC service can provide 99.99% reliability for a single transmission, where the packet size is 32 bytes and the delay is less than 1ms. Rather than reallocating resources at the RB or RE level, base station 105 may determine to reallocate one or more PHY layer resources (eg, corresponding to spatial resources) to enable communication to be provided to both UE 115 and UE 490 using spatial multiplexing.

[0090] To implement the reallocation of the PHY layer resources, the base station 105 generates a reallocation indicator 462 (e.g., at least one reallocation indicator). The reallocation indicator 462 includes or corresponds to one or more indicators for inclusion in downlink control information (DCI) to indicate the reallocation of one or more PHY layer resources allocated to the UE 115 for communication. For example, the reallocation indicator 462 includes an indicator of the reallocation of one or more types of PHY layer resources allocated to the UE 115 and indicated in a DL or UL grant to the UE 115. Figure 4 In the illustrated example, the reallocation indicator 462 includes a TB reallocation indicator 464, a rate split message reallocation indicator 466, a PHY layer reallocation indicator 468, or a combination thereof. The TB reallocation indicator 464 indicates the reallocation of one or more of the plurality of TBs allocated to the UE 115. For example, a DL or UL grant may have allocated a plurality of TBs to the communication of the UE 115, and the TB reallocation indicator 464 may indicate the reallocation of one or more of the plurality of TBs, such as for the communication of the base station 105 with the UE 490. As an illustrative example, the DL grant may include allocating a first TB and a second TB to the communication of the UE 115, and the TB reallocation indicator 464 may indicate the reallocation of the first TB, the second TB, or both.

[0091] The rate split message reallocation indicator 466 indicates the reallocation of one or more rate split messages allocated to the UE 115. To implement rate splitting, the message at the transmitter is split into two (or more) messages, each of which is independently encoded and modulated, and then independently pre-coded with a specific number of layers. As an example, a message can be split into two messages (e.g., sub-messages) X1 and X2, each undergoing separate encoding, modulation, and pre-coding (e.g., P1 and P2, respectively), so that the transmitted signal representing the message is given by P1X1+P2X2. Rate splitting has been shown to achieve greater freedom or capacity in wireless networks, and therefore, splitting different message rates into different sub-messages with different decodability constraints can improve the performance of the wireless communication system 400. A specific implementation of rate splitting is to apply rate splitting to dedicated messages and general messages in the context of broadcast and interference channels. In order to release network resources for reallocation in a specific implementation where the signal sent from the base station 105 includes a general message and a dedicated message, the base station 105 may determine to reallocate PHY layer resources corresponding to the general message, one of the multiple dedicated messages, all (or some) dedicated messages in the multiple dedicated messages, or the entire communication signal (e.g., the general message and all dedicated messages). For example, the rate split message reallocation indicator 466 may indicate the reallocation of PHY layer resources corresponding to the general message, one of the multiple dedicated messages, all dedicated messages in the multiple dedicated messages, or the entire communication signal. In this way, the PHY layer resources allocated to one or more sub-messages (e.g., a general message or one or more dedicated messages in the dedicated message) can be reallocated to communications with other network devices.

[0092] The PHY layer reallocation indicator 468 indicates the reallocation of one or more PHY layers allocated to the communication of the UE 115. For example, the DL or UL grant may have allocated multiple PHY layers to the communication of the UE 115, and the PHY layer reallocation indicator 468 may indicate the reallocation of some of the allocated PHY layers, such as for the communication of the base station 105 with the UE 490. The number of PHY layers allocated to the UE 115 may be indicated by the number of antenna ports indicated by the DL or UL grant for use by the UE 115. As an example, the UL grant may allocate four PHY layers to the communication of the UE 115, and the PHY layer reallocation indicator 468 may indicate the reallocation of two of the four PHY layers. As another example, the UL grant may allocate eight PHY layers to the communication of the UE 115, and the PHY layer reallocation indicator 468 may indicate the reallocation of four of the eight PHY layers.

[0093] The reallocation indicator 462 may include or correspond to one or more fields of the message, one or more bits of a specific field (e.g., a PHY layer resource reallocation field), one or more bits of a different specific field (e.g., an RB or other time and frequency resource reallocation field), one or more reserved bits, one or more padding bits, other fields or bits, or a combination thereof. In some implementations, the number of bits or elements included in the reallocation indicator 462 is the same as the number of PHY layer resources allocated to the UE 115, and the corresponding value of each bit or element of the reallocation indicator 462 represents an indication (e.g., a binary indicator) of whether the corresponding PHY layer resource is to be reallocated (or not reallocated). In some other implementations, the number of bits or elements included in the reallocation indicator 462 is less than the number of PHY layer resources allocated to the UE 115, and the corresponding value of each bit or element of the reallocation indicator 462 represents an indication of whether the corresponding pre-configured one or more PHY layer resources are reallocated. For example, the pre-configured PHY layer resources may include a TB with the most layers of other allocated TBs, a TB with the smallest modulation and coding scheme (MCS) of other allocated TBs, a highest PHY layer, etc. Figure 5 Examples of illustrative reallocation indicators are further described.

[0094] To communicate the reallocation indicator 462 to the UE 115, the base station 105 generates and sends a reallocation message 470 to the UE 115. The reallocation message 470 may be communicated as downlink control information (DCI) (such as via a physical downlink control channel (PDCCH)), and the reallocation message 470 includes the reallocation indicator 462 (e.g., a TB reallocation indicator 464, a rate split message reallocation indicator 466, a PHY layer reallocation indicator 468, or a combination thereof). For example, the reallocation message 470 may include the reallocation indicator 462 as one or more fields or one or more bits, as further described herein. In some implementations, the reallocation message 470 includes or corresponds to a DL preemption message or an UL cancellation message. For example, if the UE 115 receives a DL grant from the base station 105, the reallocation message 470 is a DL preemption message indicating the preemption of one or more network resources allocated to the UE 115. As another example, if the UE 115 receives an UL grant from the base station 105, the reallocation message 470 is an UL cancellation message indicating the cancellation of one or more network resources allocated to the UE 115. As used herein, the difference between cancellation and preemption is that a preemption may be communicated after the UE 115 uses at least a portion of the network resources, and thus data received via the portion of the network resources is a portion of one or more packets, transport blocks, etc. that will not be completed due to the reallocation of the remaining portion of the network resources, while a cancellation is communicated before any of the reallocated network resources are used to prevent communication via the reallocated communication resources. The impact of an UL cancellation on performance may be greater than a DL preemption because a DL preemption only causes the scheduled UE to be unable to correctly decode the received data, while an UL cancellation causes the UE to cancel the entire UL transmission (including both control information and data) and wait for a rescheduling opportunity.

[0095] In some implementations, the reallocation message 470 includes reallocation indicators for both PHY layer resources and time and frequency resources (e.g., RBs or REs). For example, the reallocation message 470 (e.g., DCI) includes a reallocation indicator 462 indicating a reallocation of one or more PHY layer resources and one or more additional indicators (referred to herein as "additional indicators 472") indicating a reallocation of one or more time and frequency resources (e.g., one or more REs or RBs) allocated to the UE 115. In such implementations, a single DL preemption message or a single UL cancel message may indicate a reallocation of both PHY layer resources (e.g., spatial resources) and RBs or REs (e.g., time and frequency resources). In some other implementations, the reallocation message 470 includes the reallocation indicator 462 and does not include the additional indicator 472. For example, the reallocation indicator 462 may replace the additional indicator 472, or the reallocation indicator 462 may be derived from the value of the additional indicator 472, so that the reallocation of PHY layer resources (e.g., spatial resources) can be indicated using the existing messaging framework without modifying the structure of the message. For example, the additional indicator 472 having a preset value associated with an invalid reallocation of time and frequency resources can be interpreted by the base station 105 and the UE 115 as a reallocation of PHY layer resources (e.g., as the reallocation indicator 462). As a non-limiting example, if the additional indicator 472 is a multi-bit value, where each bit indicates the reallocation (or non-reallocation) of the corresponding set of time and frequency resources, then the zero value will additionally indicate that the time and frequency resources are not reallocated. Since indicating that no time and frequency resources are reallocated makes the reallocation message 470 redundant, the network equipment within the wireless communication system 400 can be configured to interpret the zero value (or any other invalid or pre-configured value) as an indicator that a specific set of one or more PHY layer resources are reallocated. The specific set of PHY layer resources may be pre-configured using additional messaging, as further described herein, or may be pre-programmed at the UE 115 and the base station 105 .

[0096] UE 115 may receive reallocation message 470 and perform a response action based on reallocation indicator 462. For example, UE 115 may perform a response action to consider the reallocation of one or more PHY layer resources indicated by reallocation indicator 462 included in reallocation message 470. The reallocated PHY layer resources may be determined by UE 115 based on reallocation indicator 462, the initially allocated resources indicated by a previous grant, and optionally additional information (such as pre-configured information). In some implementations, each bit or value of reallocation indicator 462 may indicate whether the corresponding PHY layer resource is reallocated. As an example, a DL or UL grant received by UE 115 may allocate a first TB and a second TB to UE 115, and TB reallocation indicator 464 is a two-bit value in this example, where the first bit represents a binary indicator of whether the first TB is reallocated and the second bit represents a binary indicator of whether the second TB is reallocated. As another example, a DL or UL grant received by UE 115 may allocate to UE 115 PHY layer resources for a communication signal including a general message and two dedicated messages, and the rate split message reallocation indicator 466 in this example may be a four-bit value having a first bit of a binary indicator indicating whether the PHY layer resources corresponding to the general message are reallocated, a second bit of a binary indicator indicating whether the PHY layer resources corresponding to the dedicated message of UE 115 are reallocated, a third bit of a binary indicator indicating whether the PHY layer resources corresponding to all dedicated messages are reallocated, and a fourth bit of a binary indicator indicating whether the PHY layer resources corresponding to the entire communication signal are reallocated. As another example, a DL or UL grant received by UE 115 may allocate eight PHY layers (e.g., PHY layers one through eight) to UE 115, and the PHY layer reallocation indicator 468, in this example, may be a two-bit value, where the first bit represents a binary indicator of whether the next four PHY layers (e.g., PHY layers five through eight) are reallocated, and the second bit represents a binary indicator of whether the next two PHY layers (e.g., PHY layers three and four) are reallocated.

[0097] In some other implementations, each bit or value of the reallocation indicator 462 may indicate whether a preconfigured set of one or more PHY layer resources is reallocated. Additionally or alternatively, the presence of a preset value associated with an invalid reallocation of time and frequency resources as an additional indicator 472 may indicate whether a preconfigured set of one or more PHY layer resources is reallocated. For illustration, the base station 105 may send a configuration message 474 to the UE 115 before sending the DL or UL grant and reallocation message 470. The configuration message 474 identifies one or more preconfigured PHY layer resources and corresponding bits of the at least one reallocation indicator. As an example, the configuration message 474 may indicate that the reallocation message includes a single bit as the reallocation indicator 462, which indicates whether the TB with the minimum MCS of the multi-TB grant is reallocated. As another example, the configuration message 474 may indicate that the reallocation message includes a single bit as the reallocation indicator 462, which indicates whether the TB with the most layers of the multi-TB grant is reallocated. As another example, the configuration message 474 may indicate that the reallocation message includes two bits as the reallocation indicator 462, wherein the first bit indicates whether the dedicated message addressed to the UE 115 is reallocated, and the second bit indicates whether all dedicated messages are reallocated. As another example, the configuration message 474 may indicate that the reallocation message includes two bits as the reallocation indicator 462, wherein the first bit indicates whether the TB with the largest TB size is reallocated, and the second bit indicates whether the four highest PHY layers are reallocated. These examples are illustrative and non-limiting, as other configurations of the reallocation indicator 462 and the correlation with the PHY layer resources are possible. In some specific implementations, the configuration message 474 is a radio resource control (RRC) message sent by the base station 105.

[0098] The response action may also be based on the grant type (e.g., DL grant or UL grant) identifying the PHY layer resources that are now being reallocated. As an example, if a DL grant was previously received and the reallocation message 470 is a DL preemption message, the response action may include clearing a buffer (e.g., RX buffer 406) of data received via one or more PHY layer resources during the DL grant. For example, the UE 115 may have received a portion of the data during the DL grant prior to receiving the reallocation message 470, and the data was stored in the RX buffer 406. In this example, based on the reallocation message 470 (e.g., the reallocation indicator 462), the UE 115 clears the data received via any of the reallocated PHY layer resources stored in the RX buffer 406 because the remaining portion of the data will not be received via these PHY layer resources during the DL grant due to the reallocation (e.g., DL preemption). As another example, if an UL grant was previously received and the reallocation message 470 is an uplink (UL) cancellation indication (ULCI) message, the response action may include refraining from communicating with the network via one or more PHY layer resources during the UL grant. For example, the UL grant may indicate a set of PHY layer resources allocated to the UE 115 for UL transmission, and the reallocation message 470 (e.g., the reallocation indicator 462) indicates that the set of PHY layer resources is canceled. In this example, the UE 115 refrains from communicating with the base station 105 via the set of PHY layer resources during the UL grant, although the UE 115 may communicate with the base station 105 via other resources assigned in the UL grant (if there are any remaining resources that are not canceled). The response action may also be based on the type of PHY layer resources reallocated by the reallocation message 470. As an example, if the reallocation indicator 462 includes a PHY layer reallocation indicator 468, the response action may include recalculating a transport block size for communicating with the network via the remaining allocated PHY layers (e.g., performing TB scaling based on the reallocation of the PHY layers). For example, based on a DL or UL grant, the UE 115 determines the transport block size 408 based on the available resources indicated by the DL or UL grant. In this example, if the UE 115 later determines based on the PHY layer reallocation indicator 468 included in the reallocation message 470 that one or more PHY layers previously allocated to the UE 115 have been reallocated, the UE 115 recalculates the transport block size 408 based on the reduction of PHY layers available for wireless communication. Although specific response actions are described herein, the present disclosure is not limited thereto, and other response actions that take into account the reallocation of PHY layer resources are contemplated in other examples.

[0099] After transmitting the reallocation message 470 to the UE 115, the base station 105 communicates with a network entity other than the UE 115 via the one or more reallocated PHY layer resources. For example, the base station 105 may communicate the priority traffic 478 with the UE 490 via at least the reallocated PHY layer resources indicated by the reallocation message 470. As described above, the priority traffic 478 may include URLLC traffic or traffic associated with another communication protocol that has more stringent requirements than the communication protocol used by the UE 115 to communicate with the base station 105. By spatially multiplexing the priority traffic 478 (e.g., URLLC traffic) directed to the UE 490 via one or more PHY layer resources with traffic directed to the UE 115 via other PHY layer resources during a common time period (e.g., during a DL or UL grant allocated to the UE 115), the base station 105 may communicate with the UE 490 and the UE 115 during a specific grant period.

[0100] In some implementations, the base station 105 selects one or more PHY layers to be reallocated based on priority traffic 478 having a higher priority (e.g., more stringent QoS or other requirements) than traffic to the UE 115 and optionally based on other information or configuration at the base station 105. For example, the base station 105 may determine to reallocate PHY layer resources to the priority traffic 478 based on estimated error rates of the UE 115 and UE 490, estimated latency of communications to the UE 115 and UE 490, an order of association of the respective UEs 115 and UE 490 with the base station 105, one or more scheduling schemes (e.g., first serve, round robin, etc.), other information, or a combination thereof. Additionally or alternatively, the base station 105 may select one or more PHY layers to be reallocated based on a communication from the UE 115 indicating a release of PHY layer resources. For example, the UE 115 may send a release message 476 to the base station 105 prior to any reallocation determination at the base station 105. Prior to determining the reallocation indicator 462, the base station 105 receives a release message 476 indicating one or more PHY layer resources released by the UE 115. In some implementations, the release message 476 includes or corresponds to the UCI sent by the UE 115 via the PUCCH. The one or more PHY layer resources released indicated by the release message 476 may include or correspond to one or more TBs of a plurality of TBs allocated to the UE 115, a general message of a rate split communication signal allocated to the UE 115, a dedicated message of a rate split communication, the entire rate split communication signal, one or more PHY layers allocated to the UE 115, or a combination thereof, and these indicators may be similar to the reallocation indicator 462 (e.g., a TB reallocation indicator 464, a rate split message reallocation indicator 466, a PHY layer reallocation indicator 468, or a combination thereof). The UE 115 may release the PHY layer resources based on determining that the UE 115 has no data to send via the PHY layer resources, based on determining that the UE 115 has insufficient power to perform the assigned communication, etc. Based on receiving the release message 476 , the base station 105 may reallocate one or more of the released PHY layer resources to communication of the priority traffic 478 to the UE 490 .

[0101] As reference Figure 4As described, the present disclosure provides techniques for reallocation of PHY layer resources allocated for wireless communications. The techniques described herein enable a base station 105 to indicate to a UE 115 that one or more PHY layer resources have been reallocated from communications with the UE 115 to communications with another network device (e.g., UE 490), such as communications of a priority service 478. This reallocation can be used to partially reallocate resources allocated to the UE 115 by a DL grant or an UL grant (which includes a plurality of TBs or other PHY layer resources), or can be used to partially reallocate resources configured for a rate split of a wireless communication system 400. By reallocating PHY layer resources, at least some communications can be performed between the UE 115 and the base station 105 (e.g., via the remaining PHY layer resources), while freeing up other PHY layer resources for communications of a priority service 478 (such as a URLLC service with more stringent QoS requirements) to the UE 490. For example, the base station 105 may spatially multiplex the priority traffic 478 (e.g., URLLC traffic) to the UE 490 with the lower priority traffic to the UE 115, thereby supporting the more stringent QoS requirements of the priority traffic 478 by completely eliminating the network resources allocated to the communication of the UE 115, without degrading the performance of the UE 115. Thus, the wireless communication system 400 enables the reallocation of network resources at a level different from the typical reallocation of time and frequency resources at the RB or RE level, thereby more efficiently using communication resources in the context of PHY layer resources. In some specific implementations, the wireless communication system 400 utilizes the existing time and frequency resource reallocation messaging transmission and reception framework (e.g., DL preemption messages, ULCI messages, or both) with only minor modifications, thereby supporting the reallocation of PHY layer resources for wireless communication within the wireless communication system 400 with only minimal modifications to existing wireless communication devices and communication messaging.

[0102] refer to Figure 5 An example of a reallocation message for reallocating PHY layer resources according to one or more aspects is shown as a reallocation message 500. The reallocation message 500 can be a DCI or other type of message used by a base station or other network entity to indicate, such as via a DL grant or an UL grant, that one or more PHY layer resources are reallocated to a UE or other network entity to which network resources have been allocated. In some implementations, the reallocation message 500 includes or corresponds to Figure 4 Reallocation message 470.

[0103] exist Figure 5 In the example shown, the reallocation message 500 includes a header 502 , one or more other fields 504 , one or more PHY reallocation indicators 506 , and one or more additional reallocation indicators 508 . Figure 5 The examples shown are illustrative, and in some other implementations, the other fields 504, the additional reallocation indicators 508, or both are optional and may not be included, or additional fields or bits (e.g., padding bits) may be included in the reallocation message 500. The header 502 includes one or more bits or values ​​indicating the message type of the reallocation message 500, one or more fields included in the reallocation message 500, other information, etc. In addition to the header 502 and the reallocation indicators 506 and 508, the other fields 504 also include other fields of the reallocation message 500, such as other fields of the DCI. The PHY reallocation indicator 506 includes one or more indicators indicating the reallocation of corresponding PHY layer resources, and the additional reallocation indicator 508 includes one or more indicators indicating the reallocation of corresponding time and frequency resources. In some implementations, the PHY reallocation indicator 506 and the additional reallocation indicator 508 include or correspond to, respectively. Figure 4 462 and the additional indicator 472 of the reallocation message 500. Although shown as corresponding fields of the reallocation message 500, in some other specific implementations, the PHY reallocation indicator 506, the additional reallocation indicator 508, or both may not be fields, but may be reused or otherwise unused bits of the reallocation message 500, such as reserved bits, padding bits, etc.

[0104] The PHY reallocation indicator 506 may include one or more TB reallocation indicators, one or more rate split message reallocation indicators, one or more PHY layer reallocation indicators, or any combination thereof. In some implementations, the PHY reallocation indicator 506 may include Figure 4 One or more of a TB reallocation indicator 464, a rate split message reallocation indicator 466, and a PHY layer reallocation indicator 468. The various types of indicators may include one or more bits each corresponding to one of the N allocated PHY layer resources, one or more bits each corresponding to a preconfigured set of allocated PHY layer resources, or an invalid (or other preset) value for the reallocated time and frequency resources. For illustration, Figure 5 Three examples of PHY reallocation indicators 506 are depicted: a first PHY reallocation indicator 510, a second PHY reallocation indicator 520, and a third PHY reallocation indicator 530. Each of these example PHY reallocation indicators corresponds to one of the indicator implementations described above.

[0105] The first PHY reallocation indicator 510 corresponds to an example of an indicator including bits each corresponding to one of the N allocated PHY layer resources. For illustration, the first PHY reallocation indicator 510 includes a first indicator 512, a second indicator 514, and an Nth indicator 516, and the first PHY reallocation indicator 510 is configured to indicate whether each of the N PHY layer resources indicated in the previous DL or UL grant is to be reallocated. Figure 5 The first PHY reallocation indicator 510 in FIG. 5 shows three indicators, but in other examples, N may be less than three or more than three. Each of the indicators 512-516 is a bit of a binary indicator indicating whether the corresponding PHY layer resource is indicated as being reallocated. In other words, the first PHY reallocation indicator 510 indicates whether the resource is allocated to the UE by a previously granted resource (e.g., Figure 4 The reallocation of multiple PHY layer resources of the UE 115) is performed, and the first PHY reallocation indicator 510 includes a plurality of bits having the same number as the number of allocated PHY layer resources (e.g., N), wherein each bit indicates whether the corresponding PHY layer resource is reallocated. As an example, a previous grant may allocate three TBs (e.g., N is three) to the UE, the first indicator 512 is a bit having a first value (e.g., 1) indicating reallocation of the first TB or a second value (e.g., 0) indicating non-reallocation of the first TB, the second indicator 514 is a bit having a first value indicating reallocation of the second TB or a second value indicating non-reallocation of the second TB, and the Nth indicator 516 is a bit having a first value indicating reallocation of the third TB or a second value indicating non-reallocation of the third TB. As another example, a previously granted allocable rate split signal includes a general message, a first dedicated message allocated to a UE, and a second dedicated message allocated to another UE, a first indicator 512 is a bit having a binary value indicating whether resources corresponding to the general message are reallocated, a second indicator 514 is a bit having a binary value indicating whether resources corresponding to the first dedicated message are reallocated, a third indicator (not shown) is a bit having a binary value indicating whether resources corresponding to all dedicated messages are reallocated, and an Nth indicator 516 (e.g., in this example, N is four) is a bit having a binary value indicating whether resources corresponding to the entire signal are reallocated. Although the above example corresponds to a single type of PHY layer resource, in other examples, the first PHY reallocation indicator 510 may include indicators corresponding to multiple types of PHY layer resources.

[0106] The second PHY reallocation indicator 520 corresponds to an example including indicators each corresponding to a preconfigured set of allocated PHY layer resources. For illustration, the second PHY reallocation indicator 520 includes a first indicator 522, a second indicator 524, and an Mth indicator 566, and the second PHY reallocation indicator 520 is configured to indicate whether a specific preconfigured set of PHY layer resources indicated in a previous DL or UL grant is to be reallocated. Although relative to Figure 5 The second PHY reallocation indicator 520 in FIG. 5 shows three indicators, but in other examples, the second PHY reallocation indicator 520 may include less than three or more than three indicators. Each of the indicators 522-526 is a bit of a binary indicator indicating whether a corresponding set of one or more PHY layer resources is indicated as being reallocated. In other words, the second PHY reallocation indicator 520 indicates whether the corresponding set of one or more PHY layer resources is indicated as being reallocated to the UE (e.g., Figure 4 115 of the UE 115). Unlike the first PHY reallocation indicator 510, for the second PHY reallocation indicator 520, each bit indicates whether the corresponding preconfigured set of one or more PHY layer resources is reallocated, so the number of bits (e.g., M) of the second PHY reallocation indicator 520 may be less than the number of allocated PHY layer resources (e.g., N). The correspondence between each indicator (e.g., bit) of the second PHY reallocation indicator 520 and the one or more PHY layer resources is preconfigured at the UE, such as through an RRC message, another DCI message, or another type of communication indicating the preconfigured correspondence. For example, the base station may send an RRC message such as Figure 4 The configuration message 474 of the embodiment of the present invention indicates which PHY layer resource(s) corresponds to the first indicator 522, which PHY layer resource(s) corresponds to the second indicator 524, and which PHY layer resource(s) corresponds to the Mth indicator 526. As an example, the previous grant may allocate three TBs and eight PHY layers to the UE, the first indicator 522 is a bit having a first value (e.g., 1) indicating reallocation of the TB with the smallest MCS or a second value (e.g., 0) indicating non-reallocation of the TB with the smallest MCS, the second indicator 524 is a bit having a first value indicating reallocation of the TB with the most PHY layers or a second value indicating non-reallocation of the TB with the most PHY layers, and the Mth indicator 526 is a bit having a first value indicating reallocation of the highest four PHY layers or a second value indicating non-reallocation of the highest four PHY layers. Although the above examples correspond to multiple types of PHY layer resources, in other examples, the second PHY reallocation indicator 520 may include an indicator corresponding to a single type of PHY layer resource or may include a single indicator.

[0107] The third PHY reallocation indicator 530 corresponds to an example of an indicator that includes an invalid (or other preset) value for the reallocated time and frequency resources. For illustration, the third PHY reallocation indicator 530 may include or correspond to one of the additional reallocation indicators 508 and include an invalid time / frequency indicator 532. For example, a previous DL or UL grant may have allocated time and frequency resources to the UE, and the invalid time / frequency indicator 532 may be an invalid value, such as a null value or an all-zero value, which would otherwise indicate that none of the allocated time and frequency resources have been reallocated. Alternatively, the invalid time / frequency indicator 532 may be any preconfigured value or preset value. The presence of the invalid time / frequency indicator 532 in the reallocation message 500 indicates that a preconfigured set of one or more allocated PHY layer resources is reallocated. The correspondence between the invalid time / frequency indicator 532 and the one or more PHY layer resources is preconfigured at the UE, such as via an RRC message, another DCI message, or another type of communication indicating a preconfigured correspondence. For example, the base station may send an RRC message, such as Figure 4 The configuration message 474 of the embodiment of the present invention indicates which PHY layer resources are reallocated by the presence of the invalid time / frequency indicator 532. As an example, the previous grant may allocate a rate split signal to the UE, the signal including a general message, a first dedicated message allocated to the UE, a second dedicated message allocated to another UE, and a third dedicated message allocated to yet another UE, and the reallocation message 500 including the invalid time / frequency indicator 532 may indicate that the resources corresponding to the general message and the first dedicated message are reallocated.

[0108] Figure 6 600 is a flow chart illustrating an example process 600 for supporting reallocation of PHY layer resources allocated for wireless communication in accordance with one or more aspects. The operations of process 600 may be performed by a UE (such as the one described above with reference to Figures 1 to 4 UE 115 described or referenced Figure 7 For example, the example operations (also referred to as "blocks") of process 600 may enable UE 115 to support reallocation of PHY layer resources allocated for wireless communication.

[0109] At block 602, the UE receives a DCI from a network for reallocating one or more resources allocated to communications of the UE. The DCI includes at least one reallocation indicator indicating the reallocation of one or more PHY layer resources allocated to the UE. For example, the DCI may include or correspond to Figure 4 The reallocation message 470, and at least one reallocation indicator may include or correspond to Figure 4In some implementations, the DCI includes at least one reallocation indicator indicating a reallocation of one or more PHY layer resources and an additional indicator indicating a reallocation of one or more time and frequency resources allocated to the UE. For example, the additional indicator may include or correspond to Figure 4 At block 604, the UE performs a response action based on at least one reallocation indicator. For example, Figure 4 The UE 115 may perform a response action based on receiving the reallocation message 470 including the reallocation indicator 462.

[0110] In some implementations, the DCI includes a DL preemption message, and the response action includes clearing a buffer of data received via one or more PHY layer resources during the corresponding DL grant. Figure 4 The reallocation message 470 may be a DL preemption message, and the buffer may include or correspond to Figure 4 RX buffer 406. In some alternative implementations, the DCI includes a ULCI message, and the response action includes refraining from communicating with the network via one or more PHY layer resources during a corresponding uplink grant. For example, Figure 4 The reallocation message 470 may be a ULCI message, and the UE 115 may refrain from communicating with the base station 105 via the PHY layer resources indicated by the reallocation indicator 462 during the UL grant.

[0111] In some implementations, the at least one reallocation indicator includes a TB reallocation indicator, a rate split message reallocation indicator, a layer reallocation indicator, or a combination thereof. For example, the TB reallocation indicator may include or correspond to Figure 4 TB reallocation indicator 464, the rate split message reallocation indicator may include or correspond to Figure 4 The rate split message reallocation indicator 466 of the layer reallocation indicator may include or correspond to Figure 4 In some such implementations, at least one of the reallocation indicators includes a TB reallocation indicator, and the one or more PHY layer resources correspond to one or more TBs of the plurality of TBs allocated to the UE. For example, Figure 4 The TB reallocation indicator 464 indicates one or more TBs of the plurality of TBs allocated to the UE 115. Additionally or alternatively, the at least one reallocation indicator includes a layer reallocation indicator, and the one or more PHY layer resources correspond to one or more PHY layers allocated to the UE. For example, Figure 4The PHY layer reallocation indicator 468 indicates one or more PHY layers allocated to the UE 115. Additionally or alternatively, the at least one reallocation indicator includes a rate split message reallocation indicator, and the one or more PHY layer resources correspond to the one or more rate split messages allocated to the UE. For example, Figure 4 The rate split message reallocation indicator 466 indicates one or more rate split messages allocated to the UE 115. In some such implementations, one or more PHY layer resources are allocated to a communication signal including a general message and a plurality of dedicated messages, and the rate split message reallocation indicator indicates a reallocation of PHY layer resources corresponding to the general message, one of the plurality of dedicated messages, all of the plurality of dedicated messages, or the entire communication signal.

[0112] In some implementations, the at least one reallocation indicator indicates a reallocation of a plurality of PHY layer resources allocated to the UE, and the at least one reallocation indicator includes a plurality of bits having the same number as the plurality of PHY layer resources. Each bit in the plurality of bits indicates whether a corresponding PHY layer resource in the plurality of PHY layer resources is reallocated. For example, the at least one reallocation indicator may include or correspond to Figure 5 The first PHY reallocation indicator 510, and the plurality of bits may include or correspond to Figure 5 The first indicator 512, the second indicator 514 and the Nth indicator 516 are shown.

[0113] In some implementations, the at least one reallocation indicator includes one or more bits having a number less than the one or more PHY layer resources. Each of the one or more bits indicates whether a corresponding preconfigured PHY layer resource in the one or more PHY layer resources is reallocated. For example, the at least one reallocation indicator may include or correspond to Figure 5 The process 600 may further include receiving an RRC message from the network. The RRC identifies one or more pre-configured PHY layer resources and corresponding bits of the at least one reallocation indicator. For example, the RRC message may include or correspond to Figure 4 Configuration message 474.

[0114] In some implementations, the at least one reallocation indicator includes a time and frequency resource reallocation indicator having a preset value associated with an invalid reallocation of time and frequency resources. For example, the at least one reallocation indicator may include or correspond to Figure 5The third PHY reallocation indicator 530, and the preset value may include or correspond to Figure 5 Invalid time / frequency indicator 532.

[0115] Figure 7 7 is a block diagram of an example UE 700 that supports reallocation of PHY layer resources allocated for wireless communication according to one or more aspects. The UE 700 may be configured to perform operations, including referring to Figure 6 In some implementations, the UE 700 includes a reference Figures 1 to 4 1 and 115 of the UE 700. For example, the UE 700 includes a controller 280 that operates to execute logic or computer instructions stored in a memory 282 and controls components of the UE 700 that provide features and functionality of the UE 700. The UE 700 transmits and receives signals via radios 701a-r and antennas 252a-r under the control of the controller 280. The radios 701a-r include various components and hardware, such as Figure 2 As illustrated for UE 115, modulators and demodulators 254a-r, a MIMO detector 256, a receive processor 258, a transmit processor 264, and a TX MIMO processor 266 are included.

[0116] As shown, the memory 282 may include reallocation indicators 702 (e.g., at least one reallocation indicator) and communication logic 703. The reallocation indicator 702 may be included in a reallocation message received by the UE 700 and may indicate one or more PHY layer resources that are reallocated. For example, the reallocation indicator 702 may include or correspond to Figure 4 The communication logic 703 may be configured to implement communication between the UE 700 and one or more other devices. The UE 700 may receive data from one or more network entities (such as Figures 1 to 4 Base station 105 or Fig. 9 The base station shown in the figure may receive signals or send signals to one or more network entities.

[0117] Figure 8 800 is a flow chart illustrating an example process 600 for supporting reallocation of PHY layer resources allocated for wireless communication in accordance with one or more aspects. The operations of process 800 may be performed by a base station (such as described above with reference to Figures 1 to 4 The base station 105 described or referred to below Fig. 9 For example, the example operations of process 800 may enable base station 105 to support reallocation of PHY layer resources allocated for wireless communication.

[0118] At block 802, a base station sends a DCI for reallocating one or more resources allocated for communication to a UE. The DCI includes at least one reallocation indicator indicating the reallocation of one or more PHY layer resources allocated to the UE. For example, the DCI may include or correspond to Figure 4 The reallocation message 470, and at least one reallocation indicator may include or correspond to Figure 4 In some implementations, the DCI includes at least one reallocation indicator indicating a reallocation of one or more PHY layer resources and an additional indicator indicating a reallocation of one or more time and frequency resources allocated to the UE. For example, the additional indicator may include or correspond to Figure 4 At block 804, the base station communicates with a network entity other than the UE via one or more PHY layer resources. For example, the network entity may include or correspond to Figure 4 UE 490, and the communication may include or correspond to Figure 4 Priority business 478.

[0119] In some implementations, communicating with a network entity via one or more PHY layer resources includes spatially multiplexing URLLC traffic to the network entity via the one or more PHY layer resources with traffic to the UE via other PHY layer resources during a common time period. For example, the URLLC traffic may include or correspond to Figure 4 The base station 105 spatially multiplexes the priority service 478 with the service directed to the UE 115.

[0120] In some implementations, process 800 also includes receiving, prior to sending the DCI, UCI from the UE indicating one or more PHY layer resources released by the UE. The released one or more PHY layer resources correspond to one or more TBs of a plurality of TBs allocated to the UE, a general message of a rate split communication signal allocated to the UE, a dedicated message of a rate split communication, the entire rate split communication signal, one or more PHY layers allocated to the UE, or a combination thereof. For example, the UCI may include or correspond to Figure 4 Release message 476.

[0121] In some implementations, the DCI includes a DL preemption message indicating that DL communications to the UE via one or more PHY layer resources are preempted for communications with a network entity via one or more PHY layer resources. Figure 4The reallocation message 470 may be a DL preemption message, and the reallocation indicator 462 may indicate one or more preempted PHY layer resources granted by the DL. In some alternative implementations, the DCI includes a ULCI message that cancels the allocation of one or more PHY layer resources to the UE for UL communication. For example, Figure 4 The reallocation message 470 may be a ULCI message, and the reallocation indicator 462 may indicate one or more cancelled PHY layer resources of the UL grant.

[0122] In some implementations, the at least one reallocation indicator includes a TB reallocation indicator, a rate split message reallocation indicator, a layer reallocation indicator, or a combination thereof. For example, the TB reallocation indicator may include or correspond to Figure 4 TB reallocation indicator 464, the rate split message reallocation indicator may include or correspond to Figure 4 The rate split message reallocation indicator 466 of the layer reallocation indicator may include or correspond to Figure 4 In some such implementations, at least one of the reallocation indicators includes a TB reallocation indicator, and the one or more PHY layer resources correspond to one or more TBs of the plurality of TBs allocated to the UE. For example, Figure 4 The TB reallocation indicator 464 indicates one or more TBs of the plurality of TBs allocated to the UE 115. Additionally or alternatively, the at least one reallocation indicator includes a layer reallocation indicator, and the one or more PHY layer resources correspond to one or more PHY layers allocated to the UE. For example, Figure 4 The PHY layer reallocation indicator 468 indicates one or more PHY layers allocated to the UE 115. Additionally or alternatively, the at least one reallocation indicator includes a rate split message reallocation indicator, and the one or more PHY layer resources correspond to the one or more rate split messages allocated to the UE. For example, Figure 4 The rate split message reallocation indicator 466 indicates one or more rate split messages allocated to the UE 115. In some such implementations, one or more PHY layer resources are allocated to a communication signal including a general message and a plurality of dedicated messages, and the rate split message reallocation indicator indicates a reallocation of PHY layer resources corresponding to the general message, one of the plurality of dedicated messages, all of the plurality of dedicated messages, or the entire communication signal.

[0123] In some implementations, the at least one reallocation indicator indicates a reallocation of a plurality of PHY layer resources allocated to the UE, and the at least one reallocation indicator includes a plurality of bits having the same number as the plurality of PHY layer resources. Each bit in the plurality of bits indicates whether a corresponding PHY layer resource in the plurality of PHY layer resources is reallocated. For example, the at least one reallocation indicator may include or correspond to Figure 5 The first PHY reallocation indicator 510, and the plurality of bits may include or correspond to Figure 5 The first indicator 512, the second indicator 514 and the Nth indicator 516 are shown.

[0124] In some implementations, the at least one reallocation indicator includes one or more bits having a number less than the one or more PHY layer resources. Each of the one or more bits indicates whether a corresponding preconfigured PHY layer resource in the one or more PHY layer resources is reallocated. For example, the at least one reallocation indicator may include or correspond to Figure 5 The process 800 may further include sending an RRC message to the UE. The RRC identifies one or more pre-configured PHY layer resources and corresponding bits of the at least one reallocation indicator. For example, the RRC message may include or correspond to Figure 4 Configuration message 474.

[0125] In some implementations, the at least one reallocation indicator includes a time and frequency resource reallocation indicator having a preset value associated with an invalid reallocation of time and frequency resources. For example, the at least one reallocation indicator may include or correspond to Figure 5 The third PHY reallocation indicator 530, and the preset value may include or correspond to Figure 5 Invalid time / frequency indicator 532.

[0126] Fig. 9 is a block diagram of an example base station 900 that supports reallocation of PHY layer resources allocated for wireless communication according to one or more aspects. The base station 900 may be configured to perform operations including referring to Figure 8 In some implementations, the base station 900 includes a block of the process 800 described above. Figures 1 to 4The structure, hardware, and components shown and described for base station 105 of the present invention. For example, base station 900 may include controller 240 that operates to execute logic or computer instructions stored in memory 242 and control components of base station 900 that provide features and functionality of base station 900. Base station 900 transmits and receives signals via radios 901a-t and antennas 934a-t under the control of controller 240. Radios 901a-t include various components and hardware, such as those described in Figure 2 , illustrated for base station 105, includes modulators and demodulators 232a-t, a transmit processor 220, a TX MIMO processor 230, a MIMO detector 236, and a receive processor 238.

[0127] As shown, the memory 242 may include reallocation indicators 902 (e.g., at least one reallocation indicator) and communication logic 903. The reallocation indicator 902 may be included in a reallocation message sent by the base station 900 and indicate one or more PHY layer resources that are reallocated. For example, the reallocation indicator 902 may include or correspond to Figure 4 The communication logic 903 may be configured to implement communication between the base station 900 and one or more other devices. The base station 900 may receive a message from one or more UEs (such as Figures 1 to 4 UE 115 or Figure 7 UE 700) receives a signal or sends a signal to the one or more UEs.

[0128] Please note that reference Figure 6 or Figure 8 One or more blocks (or operations) described may be combined with one or more blocks (or operations) described with reference to another figure. Figure 6 One or more boxes (or operations) of Figure 8 As another example, with Figure 8 One or more boxes can be associated with the same Figure 6 As another example, Figure 6 or Figure 8 One or more boxes can be associated with the same Figures 1 to 4 One or more associated boxes (or operations) are combined. Additionally or alternatively, the above reference Figures 1 to 4 One or more of the operations described may be combined with Figure 7 or Fig. 9 A combination of one or more of the operations described.

[0129] In one or more aspects, the technology for supporting the reallocation of PHY layer resources allocated for wireless communication may include additional aspects, such as any single aspect or any combination of aspects described below or in combination with one or more other processes or devices described elsewhere herein. In a first aspect, the technology for supporting the reallocation of PHY layer resources allocated for wireless communication may include receiving from a network a DCI for reallocating one or more resources allocated to a communication of a UE. The DCI includes at least one reallocation indicator indicating the reallocation of one or more PHY layer resources allocated to the UE. These technologies may also include performing a response action based on the at least one reallocation indicator. In some examples, the technology in the first aspect may be implemented in a method or process. In some other examples, the technology of the first aspect may be implemented in a wireless communication device (which may include a UE or a component of a UE). In some examples, the wireless communication device may include at least one processing unit or system (which may include an application processor, a modem, or other component) and at least one memory device coupled to the processing unit. The processing unit may be configured to perform the operations described herein with respect to the wireless communication device. In some examples, the memory device includes a non-transitory computer-readable medium having a program code stored thereon, which is configured to cause the wireless communication device to perform the operations described herein when executed by the processing unit. Additionally or alternatively, the wireless communication device may include an interface (eg, a wireless communication interface) including a transmitter, a receiver, or a combination thereof. Additionally or alternatively, the wireless communication device may include one or more components configured to perform the operations described herein.

[0130] In a second aspect, in combination with the first aspect, the at least one reallocation indicator comprises a TB reallocation indicator, a rate split message reallocation indicator, a layer reallocation indicator, or a combination thereof.

[0131] In a third aspect, in combination with the second aspect, the at least one reallocation indicator comprises a TB reallocation indicator, and the one or more PHY layer resources correspond to one or more TBs of the plurality of TBs allocated to the UE.

[0132] In a fourth aspect, in combination with the second aspect or the third aspect, the at least one reallocation indicator comprises a rate split message reallocation indicator, and the one or more PHY layer resources correspond to one or more rate split messages allocated to the UE.

[0133] In a fifth aspect, in combination with the fourth aspect, one or more PHY layer resources are allocated to a communication signal including a general message and a plurality of dedicated messages. A rate split message reallocation indicator indicates reallocation of PHY layer resources corresponding to a general message, one of a plurality of dedicated messages, all of a plurality of dedicated messages, or the entire communication signal.

[0134] In a sixth aspect, in combination with one or more of the second to fifth aspects, the at least one reallocation indicator comprises a layer reallocation indicator, and the one or more PHY layer resources correspond to one or more PHY layers allocated to the UE.

[0135] In a seventh aspect, in combination with one or more of the first to sixth aspects, at least one reallocation indicator indicates reallocation of a plurality of PHY layer resources allocated to the UE. The at least one reallocation indicator includes a plurality of bits having the same number as the plurality of PHY layer resources. Each bit in the plurality of bits indicates whether a corresponding PHY layer resource in the plurality of PHY layer resources is reallocated.

[0136] In an eighth aspect, in combination with one or more of the first to seventh aspects, at least one reallocation indicator comprises one or more bits having a number less than the one or more PHY layer resources. Each of the one or more bits indicates whether a corresponding pre-configured PHY layer resource in the one or more PHY layer resources is reallocated.

[0137] In a ninth aspect, in combination with the eighth aspect, the techniques further include receiving an RRC message from the network. The RRC identifies one or more pre-configured PHY layer resources and corresponding bits of at least one reallocation indicator.

[0138] In a tenth aspect, in combination with one or more of the first to ninth aspects, at least one reallocation indicator comprises a time and frequency resource reallocation indicator having a preset value associated with an invalid reallocation of time and frequency resources.

[0139] In an eleventh aspect, in combination with one or more of the first to tenth aspects, the DCI includes a DL preemption message, and the response action includes clearing a buffer of data received via one or more PHY layer resources during a corresponding DL grant.

[0140] In a twelfth aspect, in combination with one or more of the first to eleventh aspects, the DCI comprises a ULCI message, and the response action comprises refraining from communicating with the network via one or more PHY layer resources during a corresponding uplink grant.

[0141] In a thirteenth aspect, in combination with one or more of the first to twelfth aspects, at least one reallocation indicator includes a layer reallocation indicator indicating reallocation of one or more PHY layers, and the response action includes recalculating a transport block size for communicating with the network via the remaining allocated PHY layers.

[0142] In a fourteenth aspect, in combination with one or more of the first to thirteenth aspects, the DCI includes at least one reallocation indicator indicating a reallocation of one or more PHY layer resources and an additional indicator indicating a reallocation of one or more time and frequency resources allocated to the UE.

[0143] In one or more aspects, the technology for supporting the reallocation of PHY layer resources allocated for wireless communication may include additional aspects, such as any single aspect or any combination of aspects described below or in combination with one or more other processes or devices described elsewhere herein. In the fifteenth aspect, the technology for supporting the reallocation of PHY layer resources allocated for wireless communication may include sending a DCI for reallocating one or more resources allocated to the communication of the UE. The DCI includes at least one reallocation indicator indicating the reallocation of one or more PHY layer resources allocated to the UE. These techniques may also include communicating with a network entity different from the UE via one or more PHY layer resources. In some examples, the technology in the fifteenth aspect may be implemented in a method or process. In some other examples, the technology in the fifteenth aspect may be implemented in a wireless communication device (such as a network entity, which may include a base station or a component of a base station). In some examples, the wireless communication device may include at least one processing unit or system (which may include an application processor, a modem, or other component) and at least one memory device coupled to the processing unit. The processing unit may be configured to perform the operations described herein with respect to the wireless communication device. In some examples, the memory device includes a non-transitory computer-readable medium having program code stored thereon, which, when executed by the processing unit, is configured to cause the wireless communication device to perform the operations described herein. Additionally or alternatively, the wireless communication device may include an interface (e.g., a wireless communication interface) comprising a transmitter, a receiver, or a combination thereof. Additionally or alternatively, the wireless communication device may include one or more components configured to perform the operations described herein.

[0144] In a sixteenth aspect, in combination with the fifteenth aspect, the at least one reallocation indicator comprises a TB reallocation indicator, a rate split message reallocation indicator, a layer reallocation indicator, or a combination thereof.

[0145] In a seventeenth aspect, in combination with the sixteenth aspect, the at least one reallocation indicator comprises a TB reallocation indicator, and the one or more PHY layer resources correspond to one or more TBs of the plurality of TBs allocated to the UE.

[0146] In the eighteenth aspect, in combination with the sixteenth aspect or the seventeenth aspect, the at least one reallocation indicator comprises a rate split message reallocation indicator, and the one or more PHY layer resources correspond to one or more rate split messages allocated to the UE.

[0147] In a nineteenth aspect, in combination with the eighteenth aspect, one or more PHY layer resources are allocated to a communication signal including a general message and a plurality of dedicated messages. A rate split message reallocation indicator indicates reallocation of PHY layer resources corresponding to the general message, one of the plurality of dedicated messages, all of the plurality of dedicated messages, or the entire communication signal.

[0148] In a twentieth aspect, in combination with one or more of the sixteenth to nineteenth aspects, at least one reallocation indicator comprises a layer reallocation indicator, and the one or more PHY layer resources correspond to one or more PHY layers allocated to the UE.

[0149] In a twenty-first aspect, in combination with one or more of the fifteenth to twentieth aspects, at least one reallocation indicator indicates reallocation of a plurality of PHY layer resources allocated to the UE, and the at least one reallocation indicator comprises a plurality of bits having the same number as the plurality of PHY layer resources. Each bit in the plurality of bits indicates whether a corresponding PHY layer resource in the plurality of PHY layer resources is reallocated.

[0150] In a twenty-second aspect, in combination with one or more of aspects 15 to 21, at least one reallocation indicator comprises one or more bits having a number less than one or more PHY layer resources. Each of the one or more bits indicates whether a corresponding pre-configured PHY layer resource in the one or more PHY layer resources is reallocated.

[0151] In a twenty-third aspect, in combination with the twenty-second aspect, the techniques include sending an RRC message identifying one or more pre-configured PHY layer resources and corresponding bits of at least one reallocation indicator.

[0152] In a twenty-fourth aspect, in combination with one or more of the fifteenth to twenty-third aspects, at least one reallocation indicator comprises a time and frequency resource reallocation indicator having a preset value associated with an invalid reallocation of time and frequency resources.

[0153] In aspect 25, in combination with one or more of aspects 15 to 24, communicating with a network entity via one or more PHY layer resources includes: during a common time period, spatially multiplexing URLLC services directed to the network entity via one or more PHY layer resources with services directed to the UE via other PHY layer resources.

[0154] In a twenty-sixth aspect, in combination with one or more of aspects 15 to 25, the techniques include receiving, from the UE before sending the DCI, UCI indicating one or more PHY layer resources released by the UE. The one or more PHY layer resources released correspond to one or more TBs of a plurality of TBs allocated to the UE, a general message of a rate split communication signal allocated to the UE, a dedicated message of a rate split communication, the entire rate split communication signal, one or more PHY layers allocated to the UE, or a combination thereof.

[0155] In the twenty-seventh aspect, in combination with one or more of the fifteenth to twenty-sixth aspects, the DCI includes a DL preemption message indicating that DL communication to the UE via one or more PHY layer resources is preempted for communication with a network entity via one or more PHY layer resources.

[0156] In a twenty-eighth aspect, in combination with one or more of the fifteenth to twenty-seventh aspects, the DCI includes a ULCI message that cancels allocation of one or more PHY layer resources to the UE for UL communication.

[0157] It should be understood by those skilled in the art that any of a variety of different technologies and techniques may be used to represent information and signals. 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, light fields or optical particles, or any combination thereof.

[0158] This article is relative to Figures 1 to 9 The components, functional blocks and modules described include processors, electronic devices, hardware devices, electronic components, logical circuits, memories, software codes, firmware codes, etc. or any combination thereof. Software should be broadly interpreted to mean instructions, instruction sets, codes, code segments, program codes, programs, subroutines, software modules, applications, software applications, software packages, routines, subroutines, objects, executables, threads of execution, processes, and / or functions, etc., whether referred to as software, firmware, middleware, microcode, hardware description language or other terms. In addition, the features discussed herein may be implemented via dedicated processor circuits, via executable instructions, or a combination thereof.

[0159] The technician will further understand that the various exemplary logic boxes, modules, circuits and algorithm steps described in conjunction with the disclosure of this article can be implemented as electronic hardware, computer software or a combination of the two. In order to clearly illustrate this interchangeability of hardware and software, various exemplary components, boxes, modules, circuits and steps have been generally described above in terms of their functionality. Whether such functionality is implemented as hardware or software depends on the specific application and the design constraints proposed to the entire system. The technician can implement the described functionality in different ways for each specific application, but such specific implementation decisions should not be interpreted as causing departure from the scope of the present disclosure. The technician will also easily recognize that the order or combination of components, methods or interactions described herein are merely examples, and the components, methods or interactions of various aspects of the present disclosure can be combined or performed in a manner other than the manner illustrated and described herein.

[0160] The various illustrative logics, logic blocks, modules, circuits, and algorithmic processes described in conjunction with the specific implementations disclosed herein may be implemented as electronic hardware, computer software, or a combination of both. The interchangeability of hardware and software has been generally described in terms of functionality and exemplified in the various illustrative components, blocks, modules, circuits, and processes described above. Whether such functionality is implemented in hardware or software depends on the specific application and the design constraints imposed on the overall system.

[0161] The hardware and data processing apparatus for implementing the various exemplary logics, logic blocks, modules and circuits described in conjunction with the various aspects disclosed herein may be implemented or executed using a general purpose single-chip or multi-chip processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic component, a discrete hardware component or any combination thereof designed to perform the functions described herein. A general purpose processor may be a microprocessor, or any conventional processor, controller, microcontroller or state machine. In some specific implementations, a processor may be implemented as a combination of computing devices, such as a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors in combination with a DSP core, or any other such configuration. In some specific implementations, specific processes and methods may be performed by circuits specific to a given function.

[0162] In one or more aspects, the functions described may be implemented in hardware, digital electronic circuitry, computer software, firmware, including the structures disclosed in this specification and their structural equivalents, or any combination thereof. Specific implementations of the subject matter described in this specification may also be implemented as one or more computer programs, i.e., one or more modules of computer program instructions encoded on computer storage media for execution by data processing apparatus or for controlling the operation of data processing apparatus.

[0163] If implemented in software, the function may be stored as one or more instructions or codes on a computer-readable medium or sent via a computer-readable medium. The process of the method or algorithm disclosed herein may be implemented in a processor executable software module that may reside on a computer-readable medium. Computer-readable media include both computer storage media and communication media, and the communication media include any medium that can be implemented to transfer a computer program from one place to another. The storage medium may be any available medium that a computer can access. As an example and not limitation, such computer-readable media may include random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), CD-ROM or other optical disk storage devices, magnetic disk storage devices or other magnetic storage devices, or any other medium that can be used to store the required program code in the form of an instruction or data structure and can be accessed by a computer. In addition, any connection may be appropriately referred to as a computer-readable medium. Disks and optical disks as used herein include compact disks (CDs), laser disks, optical disks, digital versatile disks (DVDs), floppy disks, and blue-ray disks, wherein disks generally reproduce data magnetically, and optical disks reproduce data optically with lasers. The above combination should also be included in the scope of computer-readable media. Additionally, the operations of a method or algorithm may reside as a code and instruction set, or any combination of code and instruction sets, on a machine-readable medium or computer-readable medium, which may be incorporated into a computer program product.

[0164] Various modifications to the specific implementations described in this disclosure will be apparent to those skilled in the art, and the general principles defined herein may be applied to some other specific implementations without departing from the spirit or scope of the disclosure. Therefore, the claims are not intended to be limited to the specific implementations shown herein, but are to be consistent with the broadest scope consistent with the disclosure, the principles and novel features disclosed herein.

[0165] Additionally, one of ordinary skill in the art will readily recognize that the terms "upper" and "lower" are sometimes used for ease of describing the drawings and indicate relative positions corresponding to the orientation of the drawings on a correctly oriented page, and may not reflect the correct orientation of any device as implemented.

[0166] Certain features described in this specification in the context of separate implementations may also be implemented in combination in a single implementation. Conversely, various features described in the context of a single implementation may also be implemented in multiple implementations, either individually or in any suitable subcombination. Furthermore, while features may be described above as functioning in certain combinations and even initially claimed as such, one or more features from a claimed combination may in some cases be removed from the combination, and a claimed combination may be directed to subcombinations or variations of subcombinations.

[0167] Similarly, although the operations are depicted in a specific order in the figure, this should not be understood as requiring such operations to be performed in the specific order shown or in a sequential order, or to perform all the illustrated operations to achieve the desired result. In addition, the accompanying drawings can schematically depict one or more example processes in the form of a flow chart. However, other operations that are not depicted can be combined in the example processes schematically illustrated. For example, one or more additional operations can be performed before, after, simultaneously or between any illustrated operations. In some environments, multitasking and parallel processing can be advantageous. In addition, the separation of various system components in the specific implementation described above should not be understood as requiring such separation in all specific implementations, and it should be understood that the described program components and systems can generally be integrated together in a single software product or packaged into multiple software products. Additionally, some other specific implementations also fall within the scope of the appended claims. In some cases, the actions narrated in the claims can be performed in different orders and still achieve the desired result.

[0168] As used herein, including in the claims, the term "or" used in a list of two or more items means that any of the listed items may be employed alone, or any combination of two or more of the listed items may be employed. For example, if a composition is described as containing components A, B, or C, the composition may contain A alone; B alone; C alone; A and B combined; A and C combined; B and C combined; or A, B, and C combined. In addition, as used herein, including in the claims, "or" as used in a list of items beginning with "at least one" indicates a separate list, so that, for example, a list 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) or any combination of any of these. The term "substantially" is defined as to a large extent, but not necessarily entirely, what is specified (and includes what is specified; for example, substantially 90 degrees includes 90 degrees, and substantially parallel includes parallel), as understood by one of ordinary skill in the art. In any disclosed implementation, the term "substantially" may be replaced with "within [percent] of" a specified content, where the percentage includes 0.1%, 1%, 5%, or 10%.

[0169] The previous description of the disclosure is provided to enable any person skilled in the art to make or use the disclosure. Various modifications to the disclosure will be apparent to those skilled in the art, and the general principles defined herein may be applied to other variations without departing from the spirit or scope of the disclosure. Therefore, the disclosure is not intended to be limited to the examples and designs described herein, but to be consistent with the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A user equipment (UE), wherein the user equipment (UE) include: a memory storing processor readable code; and at least one processor coupled to the memory, the at least one processor configured to execute the processor readable code so that the at least one processor: receiving downlink control information (DCI) from a network for reallocating one or more resources allocated for communications to the UE, the DCI including at least one reallocation indicator indicating reallocation of one or more physical (PHY) layer resources allocated to the UE; as well as A responsive action is performed based on the at least one reallocation indicator.

2. The UE of claim 1, wherein the at least one reallocation indicator comprises a transport block (TB) reallocation indicator, a rate split message reallocation indicator, a layer reallocation indicator, or a combination thereof.

3. The UE of claim 2, wherein the at least one reallocation indicator comprises the TB reallocation indicator, and wherein the one or more PHY layer resources correspond to one or more TBs of a plurality of TBs allocated to the UE.

4. The UE of claim 2, wherein the at least one reallocation indicator comprises the rate split message reallocation indicator, and wherein the one or more PHY layer resources correspond to one or more rate split messages allocated to the UE.

5. The UE according to claim 4, wherein the one or more PHY layer resources are allocated to a communication signal including a general message and a plurality of dedicated messages, and wherein the rate split message reallocation indicator indicates a reallocation of PHY layer resources corresponding to the general message, one of the plurality of dedicated messages, all of the plurality of dedicated messages, or the entire communication signal.

6. The UE of claim 2, wherein the at least one reallocation indicator comprises the layer reallocation indicator, and wherein the one or more PHY layer resources correspond to one or more PHY layers allocated to the UE.

7. The UE according to claim 1, wherein the at least one reallocation indicator indicates the reallocation of multiple PHY layer resources allocated to the UE, and wherein the at least one reallocation indicator includes a plurality of bits having the same number as the plurality of PHY layer resources, each bit of the plurality of bits indicating whether a corresponding PHY layer resource among the plurality of PHY layer resources is reallocated.

8. The UE according to claim 1, wherein the at least one reallocation indicator comprises one or more bits having a number less than the one or more PHY layer resources, each of the one or more bits indicating whether a corresponding preconfigured PHY layer resource among the one or more PHY layer resources is reallocated.

9. The UE of claim 8, wherein the at least one processor is configured to execute the processor-readable code to cause the at least one processor to receive a radio resource control (RRC) message from the network, the RRC identifying one or more pre-configured PHY layer resources and corresponding bits of the at least one reallocation indicator.

10. The UE of claim 1, wherein the at least one reallocation indicator comprises a time and frequency resource reallocation indicator having a preset value associated with an invalid reallocation of time and frequency resources.

11. A method of wireless communication performed by a user equipment (UE), the method include: receiving downlink control information (DCI) from a network for reallocating one or more resources allocated for communications to the UE, the DCI including at least one reallocation indicator indicating reallocation of one or more physical (PHY) layer resources allocated to the UE; as well as A responsive action is performed based on the at least one reallocation indicator.

12. The method of claim 11, wherein the DCI comprises a downlink (DL) preemption message, and wherein the responsive action comprises flushing a buffer of data received via the one or more PHY layer resources during a corresponding DL grant.

13. The method of claim 11, wherein the DCI comprises an uplink (UL) cancel indication (ULCI) message, and wherein the response action comprises refraining from communicating with the network via the one or more PHY layer resources during a corresponding uplink grant.

14. The method of claim 11, wherein the at least one reallocation indicator comprises a layer reallocation indicator indicating reallocation of one or more PHY layers, and wherein the responsive action comprises recalculating a transport block size for communicating with the network via the remaining allocated PHY layers.

15. The method of claim 11, wherein the DCI comprises the at least one reallocation indicator indicating reallocation of the one or more PHY layer resources and an additional indicator indicating reallocation of one or more time and frequency resources allocated to the UE.

16. A base station, wherein the base station include: a memory storing processor readable code; and at least one processor coupled to the memory, the at least one processor configured to execute the processor readable code so that the at least one processor: initiating transmission of downlink control information (DCI) for reallocating one or more resources allocated for communications to a user equipment (UE), the DCI comprising at least one reallocation indicator indicating reallocation of one or more physical (PHY) layer resources allocated to the UE; as well as Communicate with a network entity different from the UE via the one or more PHY layer resources.

17. The base station of claim 16, wherein the at least one reallocation indicator comprises a transport block (TB) reallocation indicator, a rate split message reallocation indicator, a layer reallocation indicator, or a combination thereof.

18. The base station of claim 17, wherein the at least one reallocation indicator comprises the TB reallocation indicator, and wherein the one or more PHY layer resources correspond to one or more TBs of a plurality of TBs allocated to the UE.

19. The base station of claim 17, wherein the at least one reallocation indicator comprises the rate split message reallocation indicator, and wherein the one or more PHY layer resources correspond to one or more rate split messages allocated to the UE.

20. A base station according to claim 19, wherein the one or more PHY layer resources are allocated to a communication signal including a general message and a plurality of dedicated messages, and wherein the rate split message reallocation indicator indicates a reallocation of PHY layer resources corresponding to the general message, one of the plurality of dedicated messages, all of the plurality of dedicated messages, or the entire communication signal.

21. The base station of claim 17, wherein the at least one reallocation indicator comprises the layer reallocation indicator, and wherein the one or more PHY layer resources correspond to one or more PHY layers allocated to the UE.

22. The base station of claim 16, wherein the at least one reallocation indicator indicates reallocation of multiple PHY layer resources allocated to the UE, and wherein the at least one reallocation indicator comprises a plurality of bits having the same number as the plurality of PHY layer resources, each bit of the plurality of bits indicating whether a corresponding PHY layer resource among the plurality of PHY layer resources is reallocated.

23. The base station of claim 16, wherein the at least one reallocation indicator comprises one or more bits having a number less than the one or more PHY layer resources, each of the one or more bits indicating whether a corresponding preconfigured PHY layer resource among the one or more PHY layer resources is reallocated.

24. The base station of claim 23, wherein the at least one processor is configured to execute the processor-readable code to cause the at least one processor to initiate sending of a radio resource control (RRC) message identifying one or more pre-configured PHY layer resources and corresponding bits of the at least one reallocation indicator.

25. The base station of claim 16, wherein the at least one reallocation indicator comprises a time and frequency resource reallocation indicator having a preset value associated with an invalid reallocation of time and frequency resources.

26. A method of wireless communication performed by a base station, the method include: transmitting downlink control information (DCI) for reallocating one or more resources allocated for communications to a user equipment (UE), the DCI comprising at least one reallocation indicator indicating reallocation of one or more physical (PHY) layer resources allocated to the UE; as well as Communicate with a network entity different from the UE via the one or more PHY layer resources.

27. The method of claim 26, wherein communicating with the network entity via the one or more PHY layer resources include: During a common time period, ultra-reliable low-latency communication (URLLC) traffic directed to the network entity via the one or more PHY layer resources is spatially multiplexed with traffic directed to the UE via other PHY layer resources.

28. The method of claim 26, further comprising receiving uplink control information (UCI) from the UE indicating one or more PHY layer resources released by the UE before sending the DCI, the released one or more PHY layer resources corresponding to one or more of a plurality of transport blocks (TBs) allocated to the UE, a general message of a rate split communication signal allocated to the UE, a dedicated message of the rate split communication, the entire rate split communication signal, one or more PHY layers allocated to the UE, or a combination thereof.

29. The method of claim 26, wherein the DCI comprises a downlink (DL) preemption message indicating that DL communications to the UE via the one or more PHY layer resources are preempted for communications with the network entity via the one or more PHY layer resources.

30. The method of claim 26, wherein the DCI comprises an uplink (UL) cancellation indication (ULCI) message that cancels allocation of the one or more PHY layer resources to the UE for UL communication.

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