Target si update indication

Abstract

A network node may send a target SI update indication for one or more subsets of wireless devices or for a directional subset, the target SI update indication comprising a downlink grant of at least one SI update associated with the one or more subsets of wireless devices or the directional subset. A network device in a subset of network devices may receive the target SI update indication and receive the at least one SI update associated with one or more subsets of the wireless devices. In one aspect, the target SI update indication is directed to the directional subset. In another aspect, the target SI update indication includes an indicator that the target SI update indication is associated with one or more subsets of the wireless device.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims the benefit of U.S. patent application serial number 17 / 805,199, entitled “TARGETED SI UPDATE INDICATION” and filed on June 2, 2022, which is expressly incorporated herein by reference in its entirety. Technical Field

[0003] The present disclosure relates generally to communication systems, and more particularly, to a method of wireless communication including a targeted system information (SI) update indication. Background Art

[0004] Wireless communication systems are widely deployed to provide a variety of telecommunication services, such as telephony, video, data, messaging, and broadcast. Typical wireless communication systems may employ multiple access technologies capable of supporting communication with multiple users by sharing available system resources. Examples of such multiple access technologies include code division multiple access (CDMA) systems, time division multiple access (TDMA) systems, frequency division multiple access (FDMA) systems, orthogonal frequency division multiple access (OFDMA) systems, single carrier frequency division multiple access (SC-FDMA) systems, and time division synchronous code division multiple access (TD-SCDMA) systems.

[0005] These multiple access technologies have been adopted in various telecommunication standards to provide a common protocol that enables different wireless devices to communicate at city, country, region, and even global levels. An example telecommunication standard is 5G New Radio (NR). 5G NR is part of the continuous mobile broadband evolution promulgated by the Third Generation Partnership Project (3GPP) to meet new requirements associated with latency, reliability, security, scalability (e.g., with the Internet of Things (IoT)) and other requirements. 5G NR includes services associated with enhanced mobile broadband (eMBB), massive machine type communication (mMTC), and ultra-reliable low latency communication (URLLC). Certain aspects of 5G NR may be based on 4G Long Term Evolution (LTE) standards. It is necessary to further improve 5G NR technology. In addition, these improvements may also be applicable to other multiple access technologies and telecommunication standards that employ these technologies. Summary of the invention

[0006] The following presents a summary of one or more aspects in order to provide a basic understanding of these aspects. This summary is not an extensive review of all envisioned aspects. This summary is neither intended to identify the key or important elements of all aspects, nor to describe the scope of any or all aspects. Its only purpose is to present some concepts of one or more aspects in a simplified form as a prelude to a more detailed description presented later.

[0007] In one aspect of the present disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may be configured to receive a target system information (SI) update indication for one or more subsets of wireless devices including wireless devices from a network node, the target SI update indication including a downlink grant of at least one SI update associated with one or more subsets of wireless devices in a set of wireless devices. The apparatus may also be configured to receive at least one SI update from the network node based on the downlink grant of at least one SI update associated with one or more subsets of wireless devices including the wireless device.

[0008] In one aspect of the present disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may be configured to obtain from a network node at least one SI update associated with one or more subsets of wireless devices in a set of wireless devices associated with the network node or with a directional subset. The apparatus may also be configured to output a target SI update indication for one or more subsets of wireless devices in a set of wireless devices associated with the network node or with a directional subset for transmission, the target SI update indication including a downlink grant of the at least one SI update associated with the one or more subsets of the wireless devices or the directional subset.

[0009] To achieve the aforementioned and related purposes, one or more aspects include the features fully described below and particularly pointed out in the claims. The following description and the accompanying drawings set forth in detail some exemplary features of one or more aspects. However, these features are only indicative of only some of the various ways in which the principles of the various aspects can be employed. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 is a diagram illustrating an example of a wireless communication system and an access network.

[0011] Figure 2A is a diagram illustrating an example of a first frame according to various aspects of the present disclosure.

[0012] Figure 2B is a diagram illustrating an example of DL channels within a subframe according to various aspects of the present disclosure.

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

[0014] Figure 2D is a diagram illustrating an example of UL channels within a subframe according to various aspects of the present disclosure.

[0015] Figure 3 is a diagram illustrating an example of a base station and a user equipment (UE) in an access network.

[0016] Figure 4 is a diagram illustrating an example IAB network.

[0017] Figure 5 is a diagram illustrating an example IAB network and its components.

[0018] Figure 6 is a diagram illustrating example connections for an IAB network.

[0019] Figure 7 is a diagram of a target SI update indication and associated DCI for a method of wireless communication.

[0020] Figure 8 is a diagram of a target SI update indication and associated DCI for a method of wireless communication.

[0021] Fig. 9 is a diagram of a target SI update indication and associated DCI for a method of wireless communication.

[0022] Fig.10 is a call flow diagram of a method of wireless communication.

[0023] Fig.11 is a flow chart of a method of wireless communication.

[0024] Fig.12 is a flow chart of a method of wireless communication.

[0025] Fig.13 is a flow chart of a method of wireless communication.

[0026] Fig.14 is a flow chart of a method of wireless communication.

[0027] Fig.15 are diagrams illustrating examples of hardware implementations for example apparatuses and / or network entities.

[0028] Fig.16 is a diagram illustrating an example of a hardware implementation for an example network entity.

[0029] Fig.17 is a diagram illustrating an example of a hardware implementation for an example network entity. DETAILED DESCRIPTION

[0030] A network node may broadcast a system information (SI) update for all network devices, and the network devices wake up to receive and decode an SI update indication. Based on some aspects of the current disclosure, in the case where an SI update may involve a subset of network devices, the network node may send a targeted SI update indication to the subset of network devices, and the subset of network devices may receive a targeted SI update based on the targeted SI update indication. Because network devices other than one or more subsets of network devices do not need to receive a targeted SI update, overall power consumption for sending a targeted SI update indication and a targeted SI update may be reduced.

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

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

[0033] As an example, an element or any part of an element or any combination of elements can be implemented as a "processing system", which includes one or more processors. The example of a processor includes a microprocessor, a microcontroller, a graphics processing unit (GPU), a central processing unit (CPU), an application processor, a digital signal processor (DSP), a reduced instruction set computing (RISC) processor, a system on a chip (SoC), a baseband processor, a field programmable gate array (FPGA), a programmable logic device (PLD), a state machine, a gate logic piece, a discrete hardware circuit and other suitable hardware configured to perform various functionalities described throughout the present disclosure. One or more processors in a processing system can execute software. Whether referred to as software, firmware, middleware, microcode, hardware description language or other terms, software should be broadly interpreted as meaning instructions, instruction sets, codes, code segments, program codes, programs, subroutines, software components, applications, software applications, software packages, routines, subroutines, objects, executables, threads of execution, procedures, functions or any combination thereof.

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

[0035] Although various aspects, specific implementations and / or use cases are described in this application by the illustration of some examples, additional or different aspects, specific implementations and use cases may be generated in many different arrangements and scenarios. The various aspects, specific implementations and / or use cases described herein can be implemented across many different platform types, devices, systems, shapes, sizes and packaging arrangements. For example, aspects, specific implementations and / or use cases can be generated via integrated chip specific implementations and other devices based on non-module components (e.g., end-user devices, vehicles, communication equipment, computing equipment, industrial equipment, retail / purchase equipment, medical equipment, artificial intelligence (AI) enabled devices, etc.). Although some examples may be specifically for use cases or applications, or may not be specifically for use cases or applications, the described examples may have a wide range of applicability. Aspects, specific implementations and / or use cases may be in the range from chip-level or modular components to non-modular, non-chip-level specific implementations, and further to the range of aggregated, distributed or original equipment manufacturer (OEM) devices or systems in conjunction with one or more technologies herein. In some practical environments, the equipment in conjunction with the various aspects and features described may also 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, RF chains, power amplifiers, modulators, buffers, processors, interleavers, adders / accumulators, etc.) The techniques described herein can be practiced in a wide variety of devices of various sizes, shapes, and configurations, chip-level components, systems, distributed arrangements, aggregated or disaggregated components, end-user devices, etc.

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

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

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

[0039] Figure 11 is a diagram 100 illustrating an example of a wireless communication system and an access network. The illustrated wireless communication system includes a disaggregated base station architecture. The disaggregated base station architecture may include one or more CUs 110 that may communicate directly with a core network 120 via a backhaul link, or indirectly with the core network 120 through one or more disaggregated base station units, such as a near real-time (near RT) RAN intelligent controller (RIC) 125 via an E2 link, or a non-real-time (non-RT) RIC 115 associated with a service management and orchestration (SMO) framework 105, or both. The CU 110 may communicate with one or more DUs 130 via corresponding midhaul links, such as an F1 interface. The DU 130 may communicate with one or more RUs 140 via corresponding fronthaul links. The RU 140 may communicate with corresponding UEs 104 via one or more radio frequency (RF) access links. In some implementations, a UE 104 may be served simultaneously by multiple RUs 140.

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

[0041] In some aspects, CU 110 may host one or more higher layer control functions. Such control functions may include radio resource control (RRC), packet data convergence protocol (PDCP), service data adaptation protocol (SDAP), etc. Each control function may be implemented using an interface that is configured to communicate signals with other control functions hosted by CU 110. CU 110 may be configured to handle user plane functionality (i.e., central unit-user plane (CU-UP)), control plane functionality (i.e., central unit-control plane (CU-CP)), or a combination thereof. In some specific implementations, CU 110 may be logically split into one or more CU-UP units and one or more CU-CP units. When implemented in an O-RAN configuration, the CU-UP unit may communicate bidirectionally with the CU-CP unit via an interface (such as an E1 interface). As needed, CU 110 may be implemented to communicate with DU 130 for network control and signaling.

[0042] DU 130 may correspond to a logical unit that includes one or more base station functions for controlling the operation of one or more RUs 140. In some aspects, DU 130 may host one or more of a radio link control (RLC) layer, a medium access control (MAC) layer, and one or more high physical (PHY) layers (such as modules for forward error correction (FEC) encoding and decoding, scrambling, modulation and demodulation, etc.) depending at least in part on a functional split such as that defined by 3GPP. In some aspects, DU 130 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 130 or with control functions hosted by CU 110.

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

[0044] The wireless communication system and access network 100 may include an integrated access backhaul (IAB) network that includes multiple cells in communication with each other to provide access and backhaul networks to a core network, such as a core network 120 or an evolved packet core (EPC). The core network 120 may be a 5G core (5GC), a core network supporting new radio (NR) communications, or another type of core network. The IAB network may include one or more IAB nodes 103. The IAB node may exchange communications with other IAB nodes 103, with a base station 102, and / or with a UE 104.

[0045] The SMO framework 105 may be configured to support RAN deployment and provisioning of non-virtualized network elements and virtualized network elements. For non-virtualized network elements, the SMO framework 105 may be configured to support the deployment of dedicated physical resources for RAN coverage requirements, which may be managed via an operation and maintenance interface (such as an O1 interface). For virtualized network elements, the SMO framework 105 may be configured to interact with a cloud computing platform (such as an open cloud (O-Cloud) 190) to perform network element lifecycle management (such as 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 110, DU 130, RU 140, and near-RT RIC 125. In some specific implementations, the SMO framework 105 may communicate with hardware aspects of the 4G RAN (such as an open eNB (O-eNB) 111) via the O1 interface. Additionally, in some specific implementations, the SMO framework 105 may communicate directly with one or more RUs 140 via the O1 interface. The SMO framework 105 may also include a non-RT RIC 115 configured to support the functionality of the SMO framework 105 .

[0046] The non-RT RIC 115 may be configured to include logic functions that enable non-real-time control and optimization of RAN elements and resources, artificial intelligence (AI) / machine learning (ML) (AI / ML) workflows including model training and updating, or policy-based guidance of applications / features in the near-RT RIC 125. The non-RT RIC 115 may be coupled to or communicate with the near-RT RIC 125 (such as via an A1 interface). The near-RT RIC 125 may be configured to include logic functions that enable near-real-time control and optimization of RAN elements and resources via data collection and actions through an interface (such as via an E2 interface) that connects one or more CUs 110, one or more DUs 130, or both, and the O-eNB with the near-RT RIC 125.

[0047] In some implementations, in order to generate an AI / ML model to be deployed in the near-RT RIC 125, the non-RT RIC 115 may receive parameters or external enrichment information from an external server. Such information may be utilized by the near-RT RIC 125 and may be received from a non-network data source or from a network function at the SMO framework 105 or the non-RT RIC 115. In some examples, the non-RT RIC 115 or the near-RT RIC 125 may be configured to tune RAN behavior or performance. For example, the non-RT RIC 115 may monitor long-term trends and patterns of performance and employ AI / ML models to perform corrective actions through the SMO framework 105 (such as via reconfiguration of O1) or via the creation of RAN management policies (such as A1 policies).

[0048] At least one of the CU 110, the DU 130, and the RU 140 may be referred to as a base station 102. Therefore, the base station 102 may include one or more of the CU 110, the DU 130, and the RU 140 (each component is indicated by a dotted line to indicate that each component may be included in the base station 102, or may not be included in the base station). The base station 102 provides an access point to the core network 120 for the UE 104. The base station 102 may include a macro cell (a high-power cellular base station) and / or a small cell (a low-power cellular base station). Small cells include femto cells, pico cells, and micro cells. A network including both small cells and macro cells may be referred to as a heterogeneous network. A heterogeneous network may also include a home evolved Node B (eNB) (HeNB), which may provide services to a restricted group referred to as a closed subscriber group (CSG). The communication link between RU 140 and UE 104 may include uplink (UL) (also known as reverse link) transmission from UE 104 to RU 140 and / or downlink (DL) (also known as forward link) transmission from RU 140 to UE 104. The communication link may use multiple-input multiple-output (MIMO) antenna technology, including spatial multiplexing, beamforming and / or transmission diversity. The communication link may be through one or more carriers. For each carrier allocated in a carrier aggregation of up to Yx MHz (x component carriers) for transmission in each direction, the base station 102 / UE 104 may use a spectrum of up to Y MHz (e.g., 5MHz, 10MHz, 15MHz, 20MHz, 100MHz, 400MHz, etc.) bandwidth. The carriers may be adjacent to each other or may not be adjacent to each other. The allocation of carriers may be asymmetric with respect to DL and UL (e.g., more or fewer carriers may be allocated to DL compared to UL). The component carrier may include a primary component carrier and one or more secondary component carriers. The primary component carrier may be referred to as a primary cell (PCell) and the secondary component carrier may be referred to as a secondary cell (SCell).

[0049] Some UEs 104 may communicate with each other using a device-to-device (D2D) communication link 158. The D2D communication link 158 may use DL / UL wireless wide area network (WWAN) spectrum. The D2D communication link 158 may use one or more sidelink channels, such as a physical sidelink broadcast channel (PSBCH), a physical sidelink discovery channel (PSDCH), a physical sidelink shared channel (PSSCH), and a physical sidelink control channel (PSCCH). The D2D communication may be through a variety of wireless D2D communication systems, such as, for example, Bluetooth, Wi-Fi based on the Institute of Electrical and Electronics Engineers (IEEE) 802.11 standard, LTE, or NR.

[0050] The wireless communication system may also include a Wi-Fi AP 150 that communicates with a UE 104 (also referred to as a Wi-Fi station (STA)) via a communication link 154, for example, in a 5 GHz unlicensed spectrum, etc. When communicating in an unlicensed spectrum, the UE 104 / AP 150 may perform a clear channel assessment (CCA) to determine whether a channel is available prior to communication.

[0051] The electromagnetic spectrum is typically subdivided into various categories, bands, channels, etc. based on frequency / wavelength. In 5G NR, two initial operating bands have been identified as frequency range designations FR1 (410 MHz–7.125 GHz) and FR2 (24.25 GHz–52.6 GHz). Although a portion of FR1 is greater than 6 GHz, FR1 is often (interchangeably) referred to as the “sub-6 GHz” band in various documents and articles. A similar naming issue sometimes occurs with respect to FR2, which is often (interchangeably) referred to as the “millimeter wave” band in documents and articles, despite being different from the extremely high frequency (EHF) band (30 GHz–300 GHz) identified as the “millimeter wave” band by the International Telecommunication Union (ITU).

[0052] Frequencies between FR1 and FR2 are generally referred to as mid-band frequencies. Recent 5G NR research has identified the operating bands for these mid-band frequencies as frequency range designation FR3 (7.125GHz–24.25GHz). The bands falling within FR3 can inherit FR1 characteristics and / or FR2 characteristics, so the features of FR1 and / or FR2 can be effectively extended to mid-band frequencies. In addition, higher frequency bands are currently being explored to extend 5G NR operations to more than 52.6GHz. For example, three higher operating bands have been identified as frequency range designations FR2-2 (52.6GHz–71GHz), FR4 (71GHz–114.25GHz), and FR5 (114.25GHz–300GHz). Each of these higher frequency bands falls within the EHF band.

[0053] In view of the above, unless otherwise specified, if the term "6 GHz or less" is used in this document, it 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 specified, if the term "millimeter wave" is used in this document, it can broadly refer to frequencies that may include mid-band frequencies, may be within FR2, FR4, FR2-2 and / or FR5, or may be within the EHF band.

[0054] The base station 102 and the UE 104 may each include multiple antennas (such as antenna elements, antenna panels, and / or antenna arrays) to facilitate beamforming. The base station 102 may send a beamformed signal 182 to the UE 104 in one or more transmit directions. The UE 104 may receive the beamformed signal from the base station 102 in one or more receive directions. The UE 104 may also send a beamformed signal 184 to the base station 102 in one or more transmit directions. The base station 102 may receive the beamformed signal from the UE 104 in one or more receive directions. The base station 102 / UE 104 may perform beam training to determine the best receive direction and transmit direction for each of the base station 102 / UE 104. The transmit direction and receive direction of the base station 102 may be the same or different. The transmit direction and receive direction of the UE 104 may be the same or different.

[0055] The base station 102 may include and / or be referred to as a gNB, a Node B, an eNB, an access point, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a basic service set (BSS), an extended service set (ESS), a transmit receive point (TRP), a network node, a network entity, a network equipment, or some other suitable term. The base station 102 may be implemented as an integrated access backhaul (IAB) node, a relay node, a sidelink node, an aggregated (monolithic) base station with a baseband unit (BBU) (including a CU and a DU) and a RU, or as a disaggregated base station including one or more of a CU, a DU, and / or a RU. A set of base stations that may include disaggregated base stations and / or aggregated base stations may be referred to as a next generation (NG) RAN (NG-RAN).

[0056] The core network 120 may include an access and mobility management function (AMF) 161, a session management function (SMF) 162, a user plane function (UPF) 163, a unified data management (UDM) 164, one or more location servers 168, and other functional entities. AMF 161 is a control node that handles signaling between UE 104 and core network 120. AMF 161 supports registration management, connection management, mobility management, and other functions. SMF 162 supports session management and other functions. UPF 163 supports packet routing, packet forwarding, and other functions. UDM 164 supports the generation of authentication and key agreement (AKA) credentials, user identity handling, access authorization, and subscription management. One or more location servers 168 are illustrated as including a gateway mobile location center (GMLC) 165 and a location management function (LMF) 166. However, in general, the one or more location servers 168 may include one or more location / positioning servers, which may include one or more of the GMLC 165, the LMF 166, the positioning determination entity (PDE), the serving mobile location center (SMLC), the mobile positioning center (MPC), etc. The GMLC 165 and the LMF 166 support UE location services. The GMLC 165 provides an interface for clients / applications (e.g., emergency services) to access UE positioning information. The LMF 166 receives measurement results and assistance information from the NG-RAN and the UE 104 via the AMF 161 to calculate the positioning of the UE 104. The NG-RAN may determine the positioning of the UE 104 using one or more positioning methods. Positioning the UE 104 may involve signal measurements, positioning estimates, and optional speed calculations based on these measurements. Signal measurements may be performed by the UE 104 and / or the serving base station 102. The measured signals may be based on a satellite positioning system (SPS) 170 (e.g., one or more of a global navigation satellite system (GNSS), a global positioning system (GPS), a non-terrestrial network (NTN), or other satellite positioning / location systems), LTE signals, wireless local area network (WLAN) signals, Bluetooth signals, a terrestrial beacon system (TBS), sensor-based information (e.g., an atmospheric pressure sensor, a motion sensor), an NR enhanced cell ID (NR E-CID) method, NR signals (e.g., multi-round trip time (multi-RTT), DL angle of departure (DL-AoD), DL time difference of arrival (DL-TDOA), UL time difference of arrival (UL-TDOA), and UL angle of arrival (UL-AoA) positioning), and / or one or more of other systems / signals / sensors.

[0057] Examples of UE 104 include cellular phones, smart phones, session initiation protocol (SIP) phones, laptops, personal digital assistants (PDAs), satellite radios, global positioning systems, multimedia devices, video devices, digital audio players (e.g., MP3 players), cameras, game consoles, tablet computers, smart devices, wearable devices, vehicles, electric meters, gas pumps, large or small kitchen appliances, healthcare equipment, implants, sensors / actuators, displays, or any other similarly functional devices. Some of the UEs 104 may be referred to as IoT devices (e.g., parking meters, gas pumps, toasters, vehicles, heart monitors, etc.). UE 104 may also be referred to as stations, mobile stations, subscriber stations, mobile units, subscriber units, wireless units, remote units, mobile devices, wireless devices, wireless communication devices, remote devices, mobile subscriber stations, access terminals, mobile terminals, wireless terminals, remote terminals, mobile phones, user agents, mobile clients, clients, or some other suitable terminology. In some scenarios, the term UE may also be applied to one or more supporting devices, such as in a device cluster arrangement. One or more of these devices may access the network collectively and / or individually.

[0058] Refer again Figure 1 In certain aspects, the UE 104 may include a target SI indication receiving component 198 configured to receive a target SI update indication for one or more subsets of wireless devices including the wireless device from a network node, the target SI update indication including a downlink grant of at least one SI update associated with the one or more subsets of wireless devices in the set of wireless devices, and receive at least one SI update from the network node based on the downlink grant of at least one SI update associated with the one or more subsets of wireless devices including the wireless device. In certain aspects, the base station 102 may include a target SI indication sending component 199 configured to obtain at least one SI update associated with one or more subsets of wireless devices in the set of wireless devices associated with the network node or with a directional subset from the network node, and output a target SI update indication for one or more subsets of wireless devices in the set of wireless devices associated with the network node or with a directional subset for transmission, the target SI update indication including a downlink grant of at least one SI update associated with the one or more subsets of wireless devices or with a directional subset.

[0059] Although the following description may focus on 5G NR, the concepts described herein may be applicable to other similar areas such as LTE, LTE-A, CDMA, GSM, and other wireless technologies.

[0060] Figure 2AFIG200 is a diagram illustrating an example of a first subframe within a 5G NR frame structure. Figure 2B FIG230 is a diagram illustrating an example of DL channels within a 5G NR subframe. Figure 2C FIG250 is a diagram illustrating an example of a second subframe within a 5G NR frame structure. Figure 2D FIG280 is a diagram illustrating an example of UL channels within a 5G NR subframe. The 5G NR frame structure may be frequency division duplex (FDD), where for a particular set of subcarriers (carrier system bandwidth), subframes within that subcarrier set are dedicated to either DL or UL, or may be time division duplex (TDD), where for a particular set of subcarriers (carrier system bandwidth), subframes within that subcarrier set are dedicated to both DL and UL. Figure 2A , Figure 2C In the example provided, the 5G NR frame structure is assumed to be TDD, where subframe 4 is configured with slot format 28 (most of which are DL), where D is DL, U is UL, and F is flexible between DL / UL, and subframe 3 is configured with slot format 1 (all of which are UL). Although subframes 3 and 4 are shown as having slot formats 1 and 28, respectively, any particular subframe may be configured with any of the various available slot formats 0 to 61. Slot formats 0 and 1 are both DL and both UL, respectively. Other slot formats 2-61 include a mix of DL, UL, and flexible symbols. The slot format is configured for the UE via a received slot format indicator (SFI) (dynamically configured via DL control information (DCI) or semi-statically / statically configured via radio resource control (RRC) signaling). Note that the following description also applies to the 5G NR frame structure as TDD.

[0061] FIG. 2A to FIG. 2DThe frame structure is illustrated, and various aspects of the present disclosure may be applicable to other wireless communication technologies that may have different frame structures and / or different channels. A frame (10ms) may be divided into 10 subframes of the same size (1ms). Each subframe may include one or more time slots. A subframe may also include a microslot, which may include 7, 4 or 2 symbols. Each time slot may include 14 or 12 symbols, depending on whether the cyclic prefix (CP) is conventional or extended. For a conventional CP, each time slot may include 14 symbols, and for an extended CP, each time slot may include 12 symbols. The symbol on the DL may be a CP orthogonal frequency division multiplexing (OFDM) (CP-OFDM) symbol. The symbol on the UL may be a CP-OFDM symbol (for high throughput scenarios) or a discrete Fourier transform (DFT) spread OFDM (DFT-s-OFDM) symbol (also known as a single carrier frequency division multiple access (SC-FDMA) symbol) (for power-limited scenarios; limited to single-stream transmission). The number of time slots within a subframe is based on the CP and parameter set. The parameter set defines the subcarrier spacing (SCS) and effectively defines the symbol length / duration, which is equal to 1 / SCS.

[0062]

[0063] For normal CP (14 symbols / slot), different parameter sets μ0 to 4 allow 1, 2, 4, 8, and 16 slots per subframe, respectively. For extended CP, parameter set 2 allows 4 slots per subframe. Accordingly, for normal CP and parameter set μ, there are 14 symbols / slot and 2 μ timeslots / subframe. The subcarrier spacing can be equal to 2 μ *15kHz, where μ is parameter set 0 to 4. Therefore, the subcarrier spacing for parameter set μ=0 is 15kHz, and the subcarrier spacing for parameter set μ=4 is 240kHz. The symbol length / duration is inversely related to the subcarrier spacing. FIG. 2A to FIG. 2D An example of a parameter set μ=2 with a normal CP of 14 symbols per slot and 4 slots per subframe is provided. The slot duration is 0.25 ms, the subcarrier spacing is 60 kHz, and the symbol duration is about 16.67 μs. Within a frame set, there may be one or more different bandwidth parts (BWPs) that are frequency-division multiplexed (see Figure 2B ). Each BWP may have a specific parameter set and CP (normal or extended).

[0064] A resource grid may be used to represent a frame structure. Each slot includes a resource block (RB) (also referred to as a physical RB (PRB)) extending over 12 consecutive subcarriers. The resource grid is divided into a plurality of resource elements (REs). The number of bits carried by each RE depends on the modulation scheme.

[0065] like Figure 2A As illustrated, some of the REs carry reference (pilot) signals (RS) for the UE. The RS may include a demodulation RS (DM-RS) (indicated as R for a particular configuration, but other DM-RS configurations are possible) and a channel state information reference signal (CSI-RS) for channel estimation at the UE. The RS may also include a beam measurement RS (BRS), a beam refinement RS (BRRS), and a phase tracking RS (PT-RS).

[0066] Figure 2B Examples of various DL channels within a subframe of a frame are illustrated. A physical downlink control channel (PDCCH) carries DCI within one or more control channel elements (CCEs) (e.g., 1, 2, 4, 8, or 16 CCEs), each CCE including six RE groups (REGs), each REG including 12 consecutive REs in an OFDM symbol of an RB. A PDCCH within a BWP may be referred to as a control resource set (CORESET). The UE is configured to monitor PDCCH candidates in a PDCCH search space (e.g., a common search space, a UE-specific search space) during a PDCCH monitoring opportunity on a CORESET, wherein the PDCCH candidates have different DCI formats and different aggregation levels. Additional BWPs may be located at higher and / or lower frequencies on the channel bandwidth. A primary synchronization signal (PSS) may be within symbol 2 of a particular subframe of a frame. The PSS is used by UE 104 to determine subframe / symbol timing and physical layer identification. A secondary synchronization signal (SSS) may be within symbol 4 of a particular subframe of a frame. The SSS is used by the UE to determine the physical layer cell identity group number and the radio frame timing. Based on the physical layer identity and the physical layer cell identity group number, the UE can determine the physical cell identifier (PCI). Based on the PCI, the UE can determine the location of the DM-RS. The physical broadcast channel (PBCH) carrying the master information block (MIB) can be logically grouped with the PSS and SSS to form a synchronization signal (SS) / PBCH block (also referred to as an SS block (SSB)). The MIB provides the system frame number (SFN) and the number of RBs in the system bandwidth. The physical downlink shared channel (PDSCH) carries user data, broadcast system information such as system information blocks (SIBs) that are not sent via the PBCH, and paging messages.

[0067] like Figure 2CAs illustrated, some of the REs carry DM-RS (indicated as R for a particular configuration, but other DM-RS configurations are possible) for channel estimation at the base station. The UE may send a DM-RS for a physical uplink control channel (PUCCH) and a DM-RS for a physical uplink shared channel (PUSCH). The PUSCH DM-RS may be sent in the first or first two symbols of the PUSCH. Depending on whether a short PUCCH or a long PUCCH is sent and depending on the specific PUCCH format used, the PUCCH DM-RS may be sent in different configurations. The UE may send a sounding reference signal (SRS). The SRS may be sent in the last symbol of a subframe. The SRS may have a comb structure, and the UE may send the SRS on one of the teeth of the comb. The SRS may be used by the base station for channel quality estimation to achieve frequency-dependent scheduling of the UL.

[0068] Figure 2D Examples of various UL channels within a subframe of a frame are illustrated. The PUCCH may be located at a position as indicated in one configuration. The PUCCH carries uplink control information (UCI), such as scheduling requests, channel quality indicators (CQI), precoding matrix indicators (PMI), rank indicators (RI), and hybrid automatic repeat request (HARQ) acknowledgement (ACK) (HARQ-ACK) feedback (i.e., one or more HARQ ACK bits indicating one or more ACKs and / or negative ACKs (NACKs)). The PUSCH carries data and may additionally be used to carry a buffer status report (BSR), a power headroom report (PHR), and / or UCI.

[0069] Figure 3370 is a block diagram of a base station 310 communicating with a UE 350 in an access network. In the DL, Internet Protocol (IP) packets may be provided to a controller / processor 375. The controller / processor 375 implements layer 3 and layer 2 functionality. Layer 3 includes a radio resource control (RRC) layer, and layer 2 includes a service data adaptation protocol (SDAP) layer, a packet data convergence protocol (PDCP) layer, a radio link control (RLC) layer, and a medium access control (MAC) layer. The controller / processor 375 provides RRC layer functionality associated with broadcasting of system information (e.g., MIB, SIB), RRC connection control (e.g., RRC connection paging, RRC connection establishment, RRC connection modification, and RRC connection release), inter-radio access technology (RAT) mobility, and measurement configuration for UE measurement reporting; PDCP layer functionality associated with header compression / decompression, security (encryption, decryption, integrity protection, integrity verification), and handover support functions; RLC layer functionality associated with delivery of upper layer packet data units (PDUs), error correction through ARQ, concatenation, segmentation and reassembly of RLC service data units (SDUs), re-segmentation of RLC data PDUs, and reordering of RLC data PDUs; and MAC layer functionality associated with mapping between logical channels and transport channels, multiplexing of MAC SDUs onto transport blocks (TBs), demultiplexing of MAC SDUs from TBs, scheduling information reporting, error correction through HARQ, priority handling, and logical channel prioritization.

[0070] The transmit (TX) processor 316 and receive (RX) processor 370 implement layer 1 functionality associated with various signal processing functions. Layer 1 (which includes the physical (PHY) layer) may include error detection on the transport channel, forward error correction (FEC) coding / decoding of the transport channel, interleaving, rate matching, mapping to the physical channel, modulation / demodulation of the physical channel, and MIMO antenna processing. The TX processor 316 handles the mapping to the signal constellation based on various modulation schemes (e.g., binary phase shift keying (BPSK), quadrature phase shift keying (QPSK), M-order phase shift keying (M-PSK), M-order quadrature amplitude modulation (M-QAM)). The decoded and modulated symbols can then be divided into parallel streams. Subsequently, each stream can be mapped to an OFDM subcarrier, multiplexed with a reference signal (e.g., a pilot) in the time domain and / or frequency domain, and then combined using an inverse fast Fourier transform (IFFT) to produce a physical channel carrying a time domain OFDM symbol stream. The OFDM stream is spatially pre-coded to generate multiple spatial streams. Channel estimates from a channel estimator 374 may be used to determine the coding and modulation schemes, as well as for spatial processing. Channel estimates may be derived from reference signals and / or channel state feedback sent by the UE 350. Each spatial stream may then be provided to a different antenna 320 via a separate transmitter 318Tx. Each transmitter 318Tx may modulate a radio frequency (RF) carrier for transmission using a corresponding spatial stream.

[0071] At the UE 350, each receiver 354Rx receives a signal through its corresponding antenna 352. Each receiver 354Rx recovers the information modulated onto the RF carrier and provides the information to a receive (RX) processor 356. The TX processor 368 and the RX processor 356 implement layer 1 functionality associated with various signal processing functions. The RX processor 356 can perform spatial processing on the information to recover any spatial streams destined for the UE 350. If multiple spatial streams are destined for the UE 350, they can be merged into a single OFDM symbol stream by the RX processor 356. The RX processor 356 then converts the OFDM symbol stream from the time domain to the frequency domain using a fast Fourier transform (FFT). The frequency domain signal includes a separate OFDM symbol stream for each subcarrier of the OFDM signal. The symbols on each subcarrier and the reference signal are recovered and demodulated by determining the most likely signal constellation point sent by the base station 310. These soft decisions can be based on channel estimates calculated by the channel estimator 358. The soft decisions are then decoded and deinterleaved to recover the data and control signals originally sent on the physical channel by the base station 310. The data and control signals are then provided to the controller / processor 359, which implements layer 3 and layer 2 functionality.

[0072] The controller / processor 359 may be associated with a memory 360 that stores program codes and data. The memory 360 may be referred to as a computer readable medium. In the UL, the controller / processor 359 provides demultiplexing between transport channels and logical channels, packet reassembly, decryption, header decompression, and control signal processing to recover IP packets. The controller / processor 359 is also responsible for error detection using ACK and / or NACK protocols to support HARQ operations.

[0073] Similar to the functions described in conjunction with DL transmissions performed by the base station 310, the controller / processor 359 provides RRC layer functionality associated with system information (e.g., MIB, SIB) acquisition, RRC connection, and measurement reporting; PDCP layer functionality associated with header compression / decompression and security (encryption, decryption, integrity protection, integrity verification); RLC layer functionality associated with delivery of upper layer PDUs, error correction through ARQ, concatenation, segmentation and reassembly of RLC SDUs, resegmentation of RLC data PDUs, and reordering of RLC data PDUs; and MAC layer functionality associated with mapping between logical channels and transport channels, multiplexing of MAC SDUs onto TBs, demultiplexing of MAC SDUs from TBs, scheduling information reporting, error correction through HARQ, priority handling, and logical channel prioritization.

[0074] The TX processor 368 may use channel estimates derived by the channel estimator 358 from a reference signal or feedback sent by the base station 310 to select appropriate coding and modulation schemes and to facilitate spatial processing. The spatial streams generated by the TX processor 368 may be provided to different antennas 352 via corresponding transmitters 354Tx. Each transmitter 354Tx may modulate an RF carrier with a corresponding spatial stream for transmission.

[0075] UL transmissions are processed at the base station 310 in a manner similar to that described in conjunction with the receiver functionality at the UE 350. Each receiver 318Rx receives a signal through its corresponding antenna 320. Each receiver 318Rx recovers information modulated onto an RF carrier and provides the information to the RX processor 370.

[0076] The controller / processor 375 may be associated with a memory 376 that stores program codes and data. The memory 376 may be referred to as a computer readable medium. In the UL, the controller / processor 375 provides demultiplexing between transport channels and logical channels, packet reassembly, decryption, header decompression, control signal processing to recover IP packets. The controller / processor 375 is also responsible for error detection using ACK and / or NACK protocols to support HARQ operations.

[0077] At least one of the TX processor 368, the RX processor 356, and the controller / processor 359 may be configured to perform operations related to Figure 1 The target SI indicates various aspects of the receiving component 198. At least one of the TX processor 316, the RX processor 370 and the controller / processor 375 may be configured to perform the Figure 1 The target SI indicates various aspects of the sending component 199 combination.

[0078] Figure 4 4 is a diagram showing an IAB network 400. The IAB network provides access network functionality between an access node (AN) and other ANs / UEs and backhaul network functionality between ANs. The AN includes an IAB donor and an IAB node, the IAB donor may have a wired connection to a core network, and the IAB node operates wirelessly and relays traffic to / from the IAB donor through one or more AN hops. The IAB AN shares resources between access and backhaul. That is, resources used for access communications between the AN and AN / UE are also used for backhaul communications between ANs.

[0079] The IAB network 400 may include an anchor node (which may be referred to herein as an "IAB donor") 410 and an access node (which may be referred to herein as an "IAB node") 420. The IAB donor 410 may be a base station, such as a gNB or an eNB, and may perform a function for controlling the IAB network 400. The IAB node 420 may include an L2 relay node, etc. The IAB donor 410 and the IAB node 420 together may share resources to provide an access network and a backhaul network to the core network 490. For example, resources may be shared between an access link and a backhaul link in the IAB network.

[0080] UE 430 interfaces with IAB node 420 or IAB donor 410 via access link 470. IAB nodes 420 communicate with each other and with IAB donor 410 via backhaul link 460. IAB donor 410 is connected to core network 490 via wired backhaul link 450. UE 430 communicates with core network by relaying messages to IAB network 400 via their respective access link 470, which may then relay the messages to IAB donor 410 via backhaul link 460 to communicate with core network via wired backhaul link 450. Similarly, core network may communicate with UE 430 by sending messages to IAB donor 410 via wired backhaul link 450. The IAB donor 410 transmits the message to the IAB node 420 connected to the UE 430 via the backhaul link 460 through the IAB network 400 , and the IAB node 420 transmits the message to the UE 430 via the access link 470 .

[0081] Each IAB node (e.g., including the IAB donor 410 and each IAB node 420) may use a PCI value. The PCI value may be used as an identifier of the IAB donor 410 or the IAB node 420. The PCI value may be used to determine a scrambling sequence applied to a physical signal and / or channel sent by a particular IAB node. For example, a PSS and / or SSS sent by a corresponding IAB donor 410 or an IAB node 420 may be scrambled using a scrambling sequence based on the PCI used by the corresponding IAB node.

[0082] Figure 5 A second schematic diagram illustrating an IAB network 500 and its components is illustrated. The IAB network 500 includes an IAB donor 510 and an IAB node 520. The IAB node and the IAB donor can provide a wireless access link to a UE 530.

[0083] The IAB donor 510 may be considered as the root node of the tree structure of the IAB network 500. The IAB donor 510 may be connected to the core network 590 via a wired connection 591. The wired connection may include, for example, a wired optical fiber. The IAB donor 510 may provide a connection to one or more IAB nodes 520a. The IAB nodes 520a may each be referred to as a child node of the IAB donor 510. The IAB donor 510 may also provide a connection to one or more UEs 530a, which may be referred to as child UEs of the IAB donor 510. The IAB donor 510 may be connected to its child IAB node 520a via a backhaul link 560, and may be connected to the child UE 530a via an access link 570. The IAB node 520a as a child node of the IAB donor 510 may also have one or more IAB nodes 520b and / or one or more UE 530b as child nodes. For example, the IAB node 520b may also be connected to a child node and / or a child UE. Figure 5 The IAB nodes 520b are illustrated to respectively provide access links to the UEs 530c.

[0084] The IAB donor 510 may include a central unit (CU) and a distributed unit (DU). The central unit CU may provide control for the IAB nodes 520a, 520b in the IAB network 500. For example, the CU may control the IAB network 500 by configuration. The CU may perform RRC / PDCP layer functions. The IAB donor 510 may also include a DU that performs scheduling. For example, the DU may schedule resources for communication by the child IAB node 520a and / or the UE 530a of the IAB donor 510. The DU maintains radio link control (RLC), medium access control (MAC), and physical (PHY) layer functions.

[0085] The IAB nodes 520a, 520b may include a mobile terminal (MT) and a DU. The IAB node is an L2 relay node. The MT of the IAB node 520a may operate as a scheduled node and be scheduled by the DU of the parent node (e.g., IAB donor 510) similarly to the UE 530a. The MT of the IAB node 520b may operate as a scheduled node of the parent node 520a. The DU may schedule child IAB nodes 520b and UE 530b of the IAB node 520a. The IAB node may provide a connection to an IAB node that in turn provides a connection for another IAB node. The pattern of the parent IAB node including the DU scheduling the child IAB node / child UE may continue until Figure 5 More links explained in .

[0086] Figure 6 600 is a diagram showing RLC channels in an IAB network. As discussed above, the IAB network provides both access network functionality and backhaul network functionality. According to the access network functionality, the IAB network includes an IAB donor having a CU 602 and a DU 604, and IAB ANs 606a, 606b, and 606c can communicate with other UEs 608a and 608b and / or MTs of other IAB ANs via access RLC channels. According to the backhaul network functionality, the IAB ANs 606a, 606b, and 606c can route traffic to other ANs (e.g., 606a, 606b, and 606c) via backhaul RLC channels. Access RLC channels include UE to DU / DU to UE (which carries PDCP for RRC or data radio bearer (DRB)) and MT to DU / DU to MT (which carries PDCP for RRC (or DRB)). The backhaul RLC channel includes MT to DU / DU to MT, which carries the Backhaul Adaptation Protocol (BAP) message for the backhaul access service.

[0087] In some aspects, if any system information (SI) is updated, an SI update indication (e.g., via a short message scrambled by a paging radio network temporary identifier (P-RNTI)) may be broadcast to each device (e.g., a network device) in the coverage area of ​​a network node (a base station or an IAB node). SI updates may be broadcast from the network node in each transmission direction. For example, the network node may send SI updates using a downlink control information format 1_0 (DCI 1_0) scrambled by the P-RNTI. DCI 1_0 may include a short message indicator represented by a bit field of 2 bits in length, a short message represented by a bit field of 8 bits in length, a PDSCH grant, and a reserved bit represented by a bit field of 6 bits in length.

[0088] Table 1 shows an example mapping between the value of the short message indicator and the short message indication.

[0089] Place value Short message indicator 00 Reserve 01 The DCI contains only scheduling information for paging. 10 Only short messages exist in DCI 11 DCI contains both scheduling information and short messages for paging.

[0090] Table 1

[0091] Table 2 shows an example mapping between the bit fields of the short message and the short message.

[0092]

[0093] Table 2

[0094] Based on the update of at least a portion of the system information (SI), the network node may send or broadcast an SI update indication to a set of network devices in DCI 1_0. Here, the set of network devices receiving the SI update may include a user equipment (UE) that receives the SI update from a base station and / or an IAB node (e.g., a child node that receives the SI update from a parent IAB node). The SI update indication notifies the set of network devices of the SI update and provides scheduling information for the set of network devices (e.g., grant information of a PDSCH carrying the SI update), and the set of network devices may receive the SI update based on the SI update indication. Here, the PDSCH associated with the grant information of DCI 1_0 may carry a paging message and may be referred to as a paging PDSCH. Because the network node may broadcast the SI update indication and the network node may wake up to receive and decode the SI update indication, the communication of the SI update for all wireless devices may consume a relatively large amount of energy for a group of network devices (e.g., UE or child IAB node) and at the network node (e.g., base station).

[0095] In some examples, the updated SI may be related to a subset of some of the wireless devices (e.g., related to a child node of an IAB node instead of a UE served by the IAB node). In one example, some SI included in SIB#1 (SIB1) from a parent IAB node or base station may include parameters for IAB-MT, which may not be related to the UE served by the parent IAB node or base station. For example, the SIB1 may include parameters for backhaul (BH) random access channel (RACH) configuration, which may not be relevant to the UE.

[0096] In another example, more new parameters may be added to the SIB1 for a subset of UEs. As an example, one subset of UEs may support additional capabilities (e.g., and may be referred to as non-legacy UEs), while another subset of UEs may not support the additional capabilities (and may be referred to as legacy UEs). That is, some SI of new parameters included in the SIB1 may be for a subset of UEs that may support certain features, and UEs that do not support one or more of these features may not understand the new parameters included in the SIB1. For example, new parameters may be added to the SIB1 in the context of a network energy saving (NES) feature, and SI configuration or update of the new parameters associated with the NES may be relevant to UEs that may support the NES feature.

[0097] In another example, some parameters may be beam specific (e.g., transmit receive point (TRP) specific). That is, some parameters added to the SIB1 may be specific to a specific TRP or a specific transmit and / or receive beam, which may be related to a direction relative to a network node. SI configuration and update may be related to the direction of the network device relative to the network node.

[0098] Therefore, the SI update indication and the associated SI update may be targeted to a subset of network devices in the set of network devices. That is, in the case where the SI update is targeted to or associated with a subset of network devices but not targeted to or associated with other network devices in the set of network devices, the network node may notify that the SI update indication is targeted to the subset of network devices, and the subset of network devices may receive SI updates based on the SI update indication, while other network devices may not wake up for the targeted SI update procedure. The network node and the set of network devices may reduce overall power consumption by sending targeted SI update indications and targeted SI updates.

[0099] In one aspect, paging messages may be configured separately for UE and IAB-MT. That is, a group of network devices (or users) may be organized into two or more groups of users (e.g., two or more subsets of devices), and the network node may have the flexibility to page a first (default) group of users and a second (configurable) group of users. The two groups may be configured with different types, specifications, or services.

[0100] In one example, a BH-specific P-RNTI may be configured for the IAB-MT, which may be configured differently from the P-RNTI used to paging the UE. In another example, at least one reserved bit in the short message may be used to notify the IAB-MT of the SI update without affecting the UE. In another example, a BH-specific parameter (e.g., pagingSearchSpace_IAB) may be configured for a BH-specific search space for paging, which may be configured separately from the "pagingSearchSpace" parameter configured for the UE. In another example, a BH-specific parameter (e.g., nAndPagingFrameOffset_IAB) may be configured for a paging frame offset, which may be configured separately from the "nAndPagingFrameOffset" parameter for the UE. Here, the BH-specific parameters may be configured separately in the same SIB1 or another SIB / RRC message.

[0101] In another aspect, the SI update indication may be carried in the paging PDSCH, and the paging PDSCH may also carry additional information. The paging PDSCH may refer to a PDSCH that carries a paging message. The paging PDSCH may carry at least one or a combination of the following indications of SI update: (1) an indication of SI update indication, (2) an indication of which SIB has been updated, (3) an indication of which IE has been updated, or (4) an updated parameter provided directly in the PDSCH payload.

[0102] In some aspects, a target SI update indication may be provided by a network node to a subset of network devices (e.g., UE, sub-IAB node, etc.), and the subset of network devices associated with the target SI update indication may be notified of the SI update. Because the network node may not send SI updates to other network devices in the set of network devices that are not associated with the SI update, and other network devices (e.g., not related to the SI update) may not wake up to receive the target SI update, the other set of network devices and / or the network node may reduce overall power consumption.

[0103] In one aspect, a targeted SI update indication may be sent only to a subset of relevant directions. The SI update may include parameters that may be beam-specific or associated with the location of the network device relative to the network node. For example, the SI update may be for a subset of TRPs or IAB-MTs located within a physical location in a subset of relevant directions relative to the network node. Thus, the targeted SI update indication may be for a subset of wireless devices (e.g., UEs or IAB-MTs) located within a physical location in a subset of directions relative to the network node. The network may send an SI update indication to a subset of directions relative to the network node to target a subset of wireless devices located in the subset of directions relative to the network node.

[0104] On the other hand, the target SI update indication may be transmitted to one or more subsets of the relevant child nodes (e.g., a set of network devices). That is, the target SI update indication may be configured to indicate one or more subsets of network devices associated with the target SI update. Various specific implementations may be provided to indicate one or more subsets of network devices associated with the target SI update. Based on the indication of one or more subsets of network devices associated with the target SI update, the network device may send the SI update to one or more subsets of network devices associated with the target SI update. The target SI update may support more than or equal to 2 subsets of child nodes (wireless devices).

[0105] Figure 7 700 is a diagram of a target SI update indication and associated DCI of a method of wireless communication. SI 702 of a network node may include SI parameters or IEs of a set of wireless devices communicating with the network node. SI 702 may include a common SI 704 and a set of target group (TG) SIs (or TG IE blocks) including a first TG SI 706 to an Nth TG SI 708. The first TG SI 706 may be associated with a first subset of wireless devices, and the Nth TG SI 708 may be associated with an Nth subset of wireless devices. The network node may detect an update in SI 702 and determine to transmit an SI update to at least one wireless device in the set of wireless devices. The network node may obtain an SI update in the common SI 704, and the network node may be configured to send a common SI update indication to the set of network devices. The network node may obtain an SI update in at least one TG SI, and the network node may be configured to send a target SI update indication for a subset of wireless devices associated with the at least one TG SI having the SI update.

[0106] The network node may obtain the SI update in the public SI 704, and the network node may be configured to send a public SI update indication to the set of network devices. The public SI update indication may be sent in a public DCI 1_0 710 scrambled with the P-RNTI, and the public DCI 1_0 710 may include a short message indicator 712, a short message 714, a PDSCH grant, and a reserved bit. For example, the short message indicator 712 may have a bit value of 10 indicating that the short message 714 is present in the DCI but not in the scheduling information for paging, and the short message 714 may have a first bit field value of 1 indicating that the SI update is for BCCH modification other than SIB6, SIB7, and SIB8.

[0107] In some aspects, the network node may obtain SI updates in at least one TG SI (including the first TG SI 706 to the Nth TG SI 708), and the network node may send a target SI update indication for one or more subsets of wireless devices associated with the at least one TG SI having the SI update. The target SI update indication may be sent in a target DCI 1_0 720 scrambled with a P-RNTI, and at least one bit field of the target DCI 1_0 720 may indicate that the target DCI 1_0 720 is for one or more subsets of wireless devices and identifies the one or more subsets of wireless devices associated with the target SI update indicated by the target DCI 1_0 720.

[0108] In one aspect, the reserved bit fields of the short message 724 may represent a bitmap configured to identify one or more subsets of wireless devices associated with the target SI update indicated by the target DCI 1_0 720, and the presence of a bit value in the reserved bit fields of the short message 724 may indicate that the target DCI 1_0 720 is for the one or more subsets of wireless devices. The short message indicator 722 may have a bit value of 10 indicating that the short message 714 is present in the DCI but not in the scheduling information for paging, and the first bit field of the short message 714 may have a bit value of 1 indicating that the SI update is for BCCH modification other than SIB6, SIB7, and SIB8. The five (5) reserved bit fields (e.g., bit fields 4, 5, 6, 7, and 8) of the short message 724 may represent a bitmap (each bit of the bitmap is respectively mapped to up to five (5) subsets of wireless devices) and support up to five (5) subsets of wireless devices.

[0109] In one example, the at least one TG SI may include five (5) TG SIs, including a first TG SI 706 to a fifth TG SI 708 associated with the first subset of wireless devices to the fifth subset of wireless devices, respectively. Bit field 4 of the short message 724 may be mapped to the first subset of wireless devices associated with the first TG SI 706, and bit field 8 of the short message 724 may be mapped to the fifth subset of wireless devices associated with the fifth TG SI 708. For example, the short message 724 may have a bit value of 10001001, indicating that the network node may send SI updates for the first TG SI 706 and the fifth TG SI 708 associated with the first subset of wireless devices and the fifth subset of wireless devices, respectively.

[0110] In addition, some of the reserved bits 728 may also be configured to support more than five (5) wireless device subsets. For example, two (2) bit fields of the reserved bits 728 may be configured for target SI update indication, and the target DCI 1_0 702 may use five (5) reserved bit fields of the short message 724 and two (2) bit fields of the reserved bits 728 to support up to seven (7) wireless device subsets.

[0111] In another aspect, the reserved bit value (e.g., bit value 00) of the short message indicator 732 may be configured to indicate that the target DCI 1_0 730 is for one or more subsets of wireless devices, and the short message 734 as a whole may be configured to identify the one or more subsets of wireless devices associated with the target SI update indicated by the target DCI 1_0 730. The short message indicator 732 may have a bit field value of 00 to indicate that the target DCI 1_0 730 is for one or more subsets of wireless devices, rather than for the entire set of wireless devices. The eight bit fields (e.g., bit fields 1, 2, 3, 4, 5, 6, 7, and 8) of the short message 734 may represent a bitmap (each bit of the bitmap is mapped to up to eight (8) wireless device subsets, respectively), and support up to eight (8) wireless device subsets.

[0112] In one example, the at least one TG SI may include eight (8) TG SIs, including first TG SI 706 to eighth TG SI 708 associated with the first subset of wireless devices to the eighth subset of wireless devices, respectively. Bit field 1 of the short message 734 may be mapped to the first subset of wireless devices associated with the first TG SI 706, and bit field 8 of the short message 734 may be mapped to the eighth subset of wireless devices associated with the eighth TG SI 708. For example, the short message 734 may have a bit value of 10000001, indicating that the network node may send SI updates for the first TG SI 706 and the eighth TG SI 708 associated with the first subset of wireless devices and the eighth subset of wireless devices, respectively.

[0113] In addition, some of the reserved bits 738 may also be configured to support more than eight (8) wireless device subsets. For example, two (2) bit fields of the reserved bits 738 may be configured for target SI update indication, and the target DCI 1_0 702 may use eight (8) reserved bit fields of the short message 734 and two (2) bit fields of the reserved bits 738 to support up to ten (10) wireless device subsets.

[0114] Figure 8 800 is a diagram of a target SI update indication and associated DCI of a method of wireless communication. SI 802 of a network node may include SI parameters or IEs of a set of wireless devices communicating with the network node. SI 802 may include a common SI 804 and a set of target group (TG) SIs including a first TG SI 806 to an Nth TG SI 808. The first TG SI 806 may be associated with a first subset of wireless devices, and the Nth TG SI 808 may be associated with an Nth subset of wireless devices. The network node may detect an update in SI 802 and determine to transmit an SI update to at least one wireless device in the set of wireless devices. The network node may obtain an SI update in the common SI 804, and the network node may be configured to send a common SI update indication to the set of network devices. The network node may obtain an SI update in at least one TG SI, and the network node may be configured to send a target SI update indication for a subset of wireless devices associated with the at least one TG SI having the SI update.

[0115] The network node may obtain the SI update in the public SI 804, and the network node may be configured to send a public SI update indication to the set of network devices. The public SI update indication may be sent in a public DCI 1_0 810 scrambled with the P-RNTI, and the public DCI 1_0 810 may include a short message indicator 812, a short message 814, a PDSCH grant, and a reserved bit. For example, the short message indicator 812 may have a bit value of 10 indicating that the short message 814 is present in the DCI but not in the scheduling information for paging, and the short message 814 may have a first bit field value of 1 indicating that the SI update is for BCCH modification other than SIB6, SIB7, and SIB8.

[0116] In some aspects, the network node may obtain an SI update in at least one TG SI (including a first TG SI 806 to an Nth TG SI 808), and the network node may send a target SI update indication for one or more subsets of wireless devices associated with the at least one TG SI having the SI update. The target SI update indication may be sent in a target DCI 1_0 820 scrambled with a new (or dedicated) P-RNTI (P2-RNTI), and the P2-RNTI may indicate that the target DCI 1_0 820 is for one or more subsets of wireless devices. Therefore, the P2-RNTI configured for scrambling the target DCI 1_0 may indicate that the target DCI 1_0 820 is for one or more subsets of wireless devices.

[0117] In one aspect, the bit values ​​of the short message indicator 822 may be configured to indicate that the target DCI 1_0 820 is for one or more subsets of wireless devices, and the short message 824 as a whole may be configured to identify one or more subsets of wireless devices associated with the target SI update indicated by the target DCI 1_0 820. The short message indicator 812 may have a bit value of 10 indicating that the short message 814 is present in the DCI but not in the scheduling information for paging, and the first bit field of the short message 814 may have a bit value of 1 indicating that the SI update is for BCCH modification other than SIB6, SIB7, and SIB8. The eight bit fields (e.g., bit fields 1, 2, 3, 4, 5, 6, 7, and 8) of the short message 824 may represent a bitmap (each bit of the bitmap is respectively mapped to up to eight (8) subsets of wireless devices) and support up to eight (8) subsets of wireless devices.

[0118] In one example, the at least one TG SI may include eight (8) TG SIs, including a first TG SI 806 to an eighth TG SI 808 associated with a first subset of wireless devices to an eighth subset of wireless devices, respectively. Bit field 1 of the short message 824 may be mapped to the first subset of wireless devices associated with the first TG SI 806, and bit field 8 of the short message 824 may be mapped to the eighth subset of wireless devices associated with the eighth TG SI 808. For example, the short message 824 may have a bit value of 10000001, indicating that the network node may send SI updates for the first TG SI 806 and the eighth TG SI 808 associated with the first subset of wireless devices and the eighth subset of wireless devices, respectively.

[0119] In addition, the reserved bits 828 may also be configured to support more than eight (8) subsets of wireless devices. For example, two (2) bit fields of the reserved bits 828 may be configured for target SI update indication, and the target DCI 1_0 802 may use the eight (8) reserved bit fields of the short message 824 and the two (2) bit fields of the reserved bits 828 to support up to ten (10) subsets of wireless devices.

[0120] In some aspects, the target SI update indication may be sent in a second target DCI 1_0 scrambled with another new (or second dedicated) P-RNTI (P3-RNTI), and the P3-RNTI may indicate that the second target DCI 1_0 is for one or more subsets of wireless devices in another set of wireless device subsets. Thus, the P3-RNTI configured for scrambling the second target DCI 1_0 may indicate that the second target DCI 1_0 is for one or more subsets of wireless devices in another set of wireless device subsets.

[0121] Fig. 9900 is a diagram of a target SI update indication and associated DCI of a method of wireless communication. SI 902 of a network node may include SI parameters or IEs of a set of wireless devices communicating with the network node. SI 902 may include a common SI 904 and a set of target group (TG) SIs including a first TG SI 906 to an Nth TG SI 908. The first TG SI 906 may be associated with a first subset of wireless devices, and the Nth TG SI 908 may be associated with an Nth subset of wireless devices. The network node may detect an update in SI 902 and determine to transmit an SI update to at least one wireless device in the set of wireless devices. The network node may obtain an SI update in the common SI 904, and the network node may be configured to send a common SI update indication to the set of network devices. The network node may obtain an SI update in at least one TG SI, and the network node may be configured to send a target SI update indication for a subset of wireless devices associated with the at least one TG SI having the SI update.

[0122] The network node may obtain the SI update in the public SI 904, and the network node may be configured to send a public SI update indication to the set of network devices. The public SI update indication may be sent in a public DCI 1_0 910 scrambled with the P-RNTI, and the public DCI 1_0 910 may include a short message indicator 912, a short message 914, a PDSCH grant, and a reserved bit. For example, the short message indicator 912 may have a bit value of 10 indicating that the short message 914 is present in the DCI but not in the scheduling information for paging, and the short message 914 may have a first bit field value of 1 indicating that the SI update is for BCCH modification other than SIB6, SIB7, and SIB8.

[0123] In some aspects, at least one bit of the reserved bit field of the target DCI 1_0 920 may be configured to indicate that the target DCI 1_0 920 is for one or more subsets of wireless devices. In one example, the reserved bit value (e.g., bit value 00) of the short message indicator 922 may be configured to indicate that the target DCI 1_0 920 is for one or more subsets of wireless devices. In another example, at least one bit of the reserved bit field of the short message 924 of the target DCI 1_0 920 may be configured to indicate that the target DCI 1_0 920 is for one or more subsets of wireless devices. In another example, at least one bit of the reserved bit field of the reserved bits 928 of the target DCI 1_0 920 may be configured to indicate that the target DCI 1_0 920 is for one or more subsets of wireless devices. Based on the indication of at least one bit of the reserved bit field of the target DCI 1_0 920 that the target DCI 1_0 920 is for one or more subsets of wireless devices, the network node may send another signal identifying the one or more subsets of wireless devices associated with the target SI update.

[0124] In one aspect, based on the indication of the target DCI 1_0 920 for one or more subsets of wireless devices by at least one bit of the reserved bit field of the target DCI 1_0 920, the network node may send a second target DCI 1_0 930 scrambled with the P2-RNTI. That is, based on the indication of the target DCI 1_0 920 for one or more subsets of wireless devices by at least one bit of the reserved bit field of the target DCI 1_0 920, the set of network devices that can support the target SI update may monitor the second target DCI 1_0 930 scrambled with the P2-RNTI. The short message 934 as a whole may be configured to identify one or more subsets of wireless devices associated with the target SI update indicated by the second target DCI 1_0 930. The at least one TG SI may include eight (8) TG SIs, including first TG SI 906 to eighth TG SI 908 associated with the first subset of wireless devices to the eighth subset of wireless devices, respectively. Bit field 1 of the short message 924 may be mapped to the first subset of wireless devices associated with the first TG SI 906, and bit field 8 of the short message 924 may be mapped to the eighth subset of wireless devices associated with the eighth TG SI 908. For example, the short message 924 may have a bit value of 10000001, indicating that the network node may send SI updates for the first TG SI 906 and the eighth TG SI 908 associated with the first subset of wireless devices and the eighth subset of wireless devices, respectively.

[0125] In addition, the reserved bits 928 may also be configured to support more than eight (8) subsets of wireless devices. For example, two (2) bit fields of the reserved bits 928 may be configured for target SI update indication, and the target DCI 1_0 920 may use the eight (8) reserved bit fields of the short message 924 and the two (2) bit fields of the reserved bits 928 to support up to ten (10) subsets of wireless devices.

[0126] On the other hand, based on the indication of at least one bit of the reserved bit field of the target DCI 1_0 920 that the target DCI 1_0 920 is for one or more subsets of wireless devices, the network node may send a bitmap in the PDSCH 940 scheduled by the PDSCH grant 926 sent by sending the DCI 1_0 920. That is, based on the indication of at least one bit of the reserved bit field of the target DCI 1_0 920 that the target DCI 1_0 920 is for one or more subsets of wireless devices, the set of network devices may receive the PDSCH 940 based on the PDSCH grant 926, and the PDSCH grant 926 may include a target SI update and a bitmap identifying one or more subsets of wireless devices associated with the target SI update.

[0127] In some aspects, the network node and the network equipment set may communicate to configure the target SI update indication. In one aspect, the network node may configure multiple target group SI blocks and which SI IEs are associated with the corresponding target group SI blocks. The network node may send a signal to configure multiple target group SI blocks corresponding to a subset of wireless devices. For example, the network node may send the configuration of multiple (e.g., a number N) target group SI blocks. The network node may also configure the SI IE associated with the corresponding target group SI block corresponding to the subset of wireless devices.

[0128] In one aspect, the configuration of the target group SI block and the associated SI IE may be explicitly indicated to a network device set. A network node may send a bitmap or list of IE indexes or names to a network device set to indicate the IE associated with each target group SI block. On the other hand, the configuration of the target group SI block and the associated SI IE may be implicitly indicated by the association of each target group SI block with a specific feature (e.g., IAB, reduced capability (RedCap), coverage enhancement (CovEnh), non-terrestrial network (NTN), NES, power saving (PS), unmanned aerial vehicle (UAV) etc.). Here, some IEs may be associated with more than one TGIE block, and if the IE is associated with more than one TG IE block.

[0129] In some aspects, the network node and the set of network devices may communicate to each other whether the network node and / or the set of network devices may support a feature of a targeted SI update indication. In one aspect, the wireless device may indicate to the network node whether the wireless device may support a feature of a targeted SI update indication. The network node may perform the targeted SI update indication feature based on the indication of whether the wireless device supports the targeted SI update indication.

[0130] On the other hand, the network node (or cell) may indicate whether the network node can support the feature of the target SI update indication. In one example, the network node may send a notification in SIB1 that the network node can support the feature of the target SI update indication. In another example, the network node may dynamically send a notification that the network node can support the feature of the target SI update indication via a wake-up signal (WUS), a permanent equipment identifier (PEI), or a flag in a paging PDCCH. In another example, the network operation / maintenance / management (OAM) function of the network may indicate to a network device (e.g., UE) (e.g., for a given public mobile network (PLMN)) whether the target SI update indication feature is supported in the network.

[0131] The configuration of the target SI update indication may also include a mapping of the TG IE block to a corresponding bit field of the DCI 1_0 identifying the network device subset. For example, the configuration of the target SI update indication may include at least one of the following: a mapping between at least one TG SI including the first TGSI 706 to the Nth TG SI 708 and a reserved bit field of the short message 724 or a bit field of the short message 734, a mapping between at least one TG SI including the first TG SI 806 to the Nth TG SI 808 and a bit field of the short message 824, or a mapping between at least one TG SI including the first TG SI 906 to the Nth TG SI 908 and a bit field of the short message 924.

[0132] The target group SI block and the associated SI IE can be configured via various specific implementations. In one example, the configuration / indication / association of the target group SI block and the associated IE can be specified for the network node and the network equipment set. In another example, the configuration / indication / association of the target group SI block and the associated IE can be broadcast or provided to the network equipment set in a dedicated signal (e.g., RRC message). In another example, the configuration / indication / association of the target group SI block and the associated IE can be a combination of being specified for the network node and the network equipment set and broadcasted to the network equipment set by the network node in a dedicated signal.

[0133] In some aspects, a network device that can support P2-RNTI (or support multiple P2-RNTIs) may take one of the following two behaviors. First, the network device may be configured to monitor DCI 1_0 scrambled with both P-RNTI and P2-RNTI. Second, the network device may be configured to monitor DCI 1_0 scrambled with P2-RNTI. Based on the network device following the first behavior of monitoring DCI 1_0 scrambled with both P-RNTI and P2-RNTI, the network node may use DCI 1_0 scrambled with P-RNTI to send a common SI update indication for the network device and all network devices in the set of network devices. Based on the network device following the second behavior of monitoring DCI 1_0 scrambled with P2-RNTI, the network node may need to send a separate DCI 1_0 scrambled with P2-RNTI to send a common SI update indication to the network device following the second behavior.

[0134] The configuration of the behavior of the network device may have an impact on the power consumption of the network device and the network. In one aspect, for a network node and a network device in a set of network devices that follow the first behavior of monitoring DCI 1_0 scrambled with both P-RNTI and P2-RNTI, and the network node may use P-RNTI to send a public SI update and use P2-RNTI to send a target SI update to a subset of wireless devices. The network may have reduced power consumption by using P2-RNTI to send a target SI update to the network node. A network device configured to monitor both public DCI 1_0 and target DCI 1_0 may have some increased power consumption; however, the network device may ignore the target DCI 1_0 that is not associated with the network node, and therefore, the overall power consumption on the network device side may be reduced.

[0135] In another aspect, the network device may be configured to monitor DCI 1_0 scrambled with P2-RNTI, but not monitor DCI 1_0 scrambled with P-RNTI. To accommodate network devices that follow the second behavior, the network node may send a common SI update using P-RNTI to send a common SI update for network devices that follow the second behavior, and send a targeted SI update to a subset of wireless devices using P2-RNTI. The network may have increased power consumption because the network node may send two different DCIs, including common DCI 1_0 scrambled with P-RNTI sent to a set of network nodes that do not follow the second behavior, and common DCI 1_0 scrambled with P2-RNTI sent to network nodes that follow the second behavior.

[0136] In a similar manner, when a network node is configured to send a target SI update indication to a subset of directions relative to the network node for a subset of wireless devices located in the subset of directions relative to the network node, a cell associated with the network node may reduce some power consumption because the target SI update indication is sent to the relevant area.

[0137] In some aspects, the network node and the set of network devices that can support P2-RNTI can communicate with each other to configure the behavior of the network devices. That is, in the case where the network node can support two behaviors of the network device that can support the use of P2-RNTI to indicate the target SI update in the DCI 1_0 scrambled with P2-RNTI, the network node and the network node can indicate that the network node or the network device can support the two behaviors of the network device that supports the use of P2-RNTI to indicate the target SI update in the DCI 1_0 scrambled with P2-RNTI.

[0138] In one aspect, each network device (e.g., UE) may send a notification to the network node regarding whether the network device can support either or both of the behaviors associated with P2-RNTI. The network device may also indicate whether the network device can support multiple P2-RNTIs or the number of multiple P2-RNTIs that the network device can support.

[0139] In another aspect, the network node (or cell) may send (or broadcast) a notification to a set of network devices regarding whether the network node can support either or both of the behaviors associated with P2-RNTI. The network node may also indicate whether the network node can support multiple P2-RNTIs or the number of multiple P2-RNTIs that the network node can support.

[0140] In some aspects, the network node may configure or activate the behavior that the network device supporting P2-RNTI should follow. In one example, the network node may send the behavior configuration for the network device supporting P2-RNTI in SIB1. In another example, the network node may dynamically send the behavior configuration for the network device supporting P2-RNTI via a flag in WUS, PEI, or paging PDCCH. The behavior may be activated or configured differently for different target groups, different time intervals, different cells, different characteristics, and different beam directions.

[0141] In some aspects, the target SI update indication may also dynamically indicate updated parameters of the target SI update to the network device. In one aspect, the target SI update indication may be carried in the payload of a PDSCH scheduled by the target SI update indication. On the other hand, the target SI update indication may be carried in the payload of a PDSCH scheduled by a dedicated group common PDCCH. That is, the dedicated group common PDCCH may be configured to be specific to a subset of network devices, and the PDSCH scheduled by the dedicated group common PDCCH may carry the target SI update indication and corresponding information of the target SI update. For example, the payload of the PDSCH scheduled by the target SI update indication may include at least one or a combination of the following indications of SI update: (1) an indication of an SI update indication, (2) an indication of which SIB has been updated, (3) an indication of which IE has been updated, or (4) an updated parameter provided directly in the PDSCH payload.

[0142] Fig.10 The call flow diagram 1000 is a method of wireless communication. The call flow diagram 1000 may include a network device 1002 and a network node 1004. The network node 1004 may send a target SI update indication for one or more subsets of wireless devices in a set of wireless devices associated with the network node 1004 or for a directional subset, and a first network device 1002 in the one or more subsets of wireless devices may receive the target SI update indication and the associated target SI update from the network node 1004. By sending the target SI update indication and the target SI update to one or more subsets of network devices related to the target SI update, the network node 1004 and the set of network devices including the first network device 1002 may reduce overall power consumption. Here, the wireless device subset may include at least one of a user equipment or a sub IAB node.

[0143] The network node 1004 and the first network device 1002 may communicate to each other whether the network node 1004 and / or the first network device 1002 may support features of the targeted SI update indication.

[0144] At 1006, the network node 1004 may send a notification that the network node 1004 may support the targeted SI update indication for one or more subsets of wireless devices, wherein the targeted SI update indication may be sent for the one or more subsets of wireless devices based on the notification that the network node 1004 supports the targeted SI update indication for the one or more subsets of wireless devices at 1020. The first network device 1002 may receive from the network node 1004 a notification that the network node 1004 supports the targeted SI update indication for the one or more subsets of wireless devices, wherein the targeted SI update indication may be received from the network node 1004 at 1020 based on the notification that the network node 1004 supports the targeted SI update indication for the one or more subsets of wireless devices.

[0145] At 1008, the first network device 1002 may send a capability of one or more subsets of wireless devices to support a targeted SI update indication of a downlink grant including at least one SI update associated with the one or more subsets of wireless devices, wherein the targeted SI update indication may be received from the network node 1004 based on the capability of the wireless devices sent to the network node 1004 at 1020. The network node 1004 may obtain the capability of one or more subsets of wireless devices to support the targeted SI update indication of a downlink grant including at least one SI update associated with the one or more subsets of wireless devices, wherein the targeted SI update indication may be sent for the one or more subsets of wireless devices based on the obtained capability of the one or more subsets of wireless devices at 1020.

[0146] At 1010, the network node 1004 may send a configuration or reconfiguration of an association between a target SI update indication and one or more subsets of wireless devices, wherein the target SI update indication may be sent for the one or more subsets of wireless devices based on the configuration or reconfiguration of the association between the target SI update indication and the one or more subsets of wireless devices at 1020. The first network device 1002 may receive a configuration or reconfiguration of an association between a target SI update indication and one or more subsets of wireless devices including the wireless device, wherein the target SI update indication may be received from the network node 1004 at 1020 based on the configuration or reconfiguration of the association between the target SI update indication and the one or more subsets of wireless devices including the wireless device.

[0147] The configuration of the target SI update indication may also include a mapping of the corresponding bit field of the target group IE block to the identification network device subset of DCI 1_0. Based on the configuration, the network node 1004 may indicate that the target SI update indication is for one or more subsets of the wireless device including the first network device 1002, and identifies one or more subsets of the wireless device. The configuration or reconfiguration of the association between the target SI update indication and the one or more subsets of the wireless device may be based on at least one of the following: the direction of one or more subsets of the network device relative to the network node, the context of the supported features, etc. In one aspect, the configuration or reconfiguration of the target SI update indication, the target group SI block, and the corresponding network device subset may be explicitly indicated to the network device set. The network node may send a bitmap or list of IE indexes or names to the network device set to indicate the SI IE associated with each target group SI block. On the other hand, the configuration of the target SI update indication, the target group SI block, and the corresponding network device subset may be implicitly indicated by the association of each target group SI block with a specific feature (e.g., IAB, RedCap, CovEnh, NTN, NES, PS, UAV, etc.).

[0148] At 1012, the network node 1004 may send a notification that the network node 1004 supports the behavior of commanding one or more subsets of wireless devices. The first network device 1002 may receive a notification from the network node 1004 that the network node 1004 supports the target SI update indication for one or more subsets of wireless devices, wherein at 1016, the target SI update indication may be received from the network node 1004 based on the notification that the network node 1004 supports the target SI update indication for one or more subsets of wireless devices.

[0149] At 1014, the first network device 1002 may send the capabilities of the wireless device to support the behavior of the wireless device, wherein the behavior of the wireless device is commanded based on the capabilities of the wireless device. The network node 1004 may obtain the capabilities of the one or more subsets of the wireless devices to support the behavior of the one or more subsets of the wireless devices, wherein at 1016, the behavior of the one or more subsets of the wireless devices is commanded based on the obtained capabilities of the one or more subsets of the wireless devices.

[0150] At 1016, the network node 1004 may instruct the behavior of one or more subsets of wireless devices to (A) monitor DCI 1_0 scrambled with a common P-RNTI and DCI 1_0 scrambled with a P2-RNTI, the common P-RNTI associated with the set of wireless devices, or (B) monitor DCI 1_0 scrambled with a P2-RNTI. The first network device 1002 may receive instructions for the behavior of the wireless device to (A) monitor DCI 1_0 scrambled with a common P-RNTI and DCI 1_0 scrambled with a P2-RNTI, the common P-RNTI associated with the set of wireless devices, or (B) monitor DCI 1_0 scrambled with a P2-RNTI. The first network device 1002 that can support P2-RNTI (or support multiple P2-RNTIs) may take one of the following two behaviors. First, the first network device 1002 may be configured to monitor DCI 1_0 scrambled with both P-RNTI and P2-RNTI. Secondly, the first network device 1002 can be configured to monitor DCI 1_0 scrambled with P2-RNTI. The network node 1004 can command the first network device 1002 to select one of the first behavior or the second behavior. Based on the behavior that the first network device 1002 can follow, the network node 1004 can send a public SI update in a corresponding manner.

[0151] At 1018, the network node 1004 may obtain at least one SI update associated with one or more subsets of wireless devices in the set of wireless devices associated with the network node 1004 or with a directional subset from the network node 1004. The network node 1004 may obtain at least one SI update associated with one or more subsets of wireless devices, and the one or more subsets of wireless devices may be associated with a target group SI (or TG IE block).

[0152] At 1020, the network node 1004 may send a targeted SI update indication for one or more subsets of wireless devices in the set of wireless devices associated with the network node 1004 or for a directional subset, the targeted SI update indication including a downlink grant of at least one SI update associated with the one or more subsets of wireless devices or the directional subset as obtained at 1018. The first network device 1002 may receive, from the network node 1004, a targeted SI update indication for one or more subsets of wireless devices including the wireless device, the targeted SI update indication including a downlink grant of at least one SI update associated with the one or more subsets of wireless devices in the set of wireless devices.

[0153] In one aspect, the target SI update indication may be directed to a subset of directions and output for transmission in the subset of directions. That is, some parameters of the SI may be beam-specific (e.g., transmit receive point (TRP) specific), and updates to the beam-specific SI may be related to the direction relative to the network node, and the SI configuration and update may be related to the direction of one or more subsets of network devices relative to the network node. Here, the target SI update may be related to the first network device 1002, but not to the second network device 1003.

[0154] In some aspects, the target SI update indication may include an indicator that the target SI update indication is associated with one or more subsets of wireless devices. In one aspect, the target SI update indication may be sent in DCI 1_0 scrambled with a common P-RNTI. At least one of the short message indicator of DCI 1_0 or at least one bit of the short message of DCI 1_0 may be an indicator that the target SI update indication is associated with one or more subsets of wireless devices. In one example, the reserved bits of the short message of DCI 1_0 may include a bitmap indicating one or more subsets of wireless devices associated with the target SI update indication, and the presence of the bitmap in the reserved bits of the short message of DCI 1_0 may be an indicator that the target SI update indication is associated with one or more subsets of wireless devices. In another example, the short message indicator of DCI 1_0 may be an indicator that the target SI update indication is associated with one or more subsets of wireless devices, wherein the short message of DCI 1_0 may include a bitmap indicating one or more subsets of wireless devices associated with the target SI update indication.

[0155] On the other hand, the P-RNTI may be a P2-RNTI associated with one or more subsets of wireless devices, and the P2-RNTI may be an indicator that the target SI update indication is associated with one or more subsets of wireless devices. The short message of the DCI 1_0 scrambled with the P2-RNTI may include a bitmap indicating one or more subsets of wireless devices associated with the target SI update indication. On the other hand, at least one reserved bit of the DCI 1_0 may be an indicator that the target SI update indication is associated with one or more subsets of wireless devices. At 1022, the network node 1004 may send an identification of one or more subsets of wireless devices associated with the target SI update indication. On the other hand, the target SI update indication for one or more subsets of wireless devices may be sent in a PDSCH or a dedicated group common PDCCH.

[0156] At 1022, based on at least one reserved bit of the DCI 1_0 being an indicator that the target SI update indication is associated with one or more subsets of wireless devices, the network node 1004 may send an identification of the one or more subsets of wireless devices associated with the target SI update indication. Based on at least one reserved bit of the DCI 1_0 being an indicator that the target SI update indication is associated with one or more subsets of wireless devices, the first network device 1002 may receive the identification of the one or more subsets of wireless devices associated with the target SI update indication. In one aspect, the identification of the one or more subsets of wireless devices associated with the target SI update indication may be sent in a second DCI 1_0 scrambled with a P2-RNTI associated with the one or more subsets of wireless devices, the short message of the second DCI 1_0 including a bitmap indicating the one or more subsets of wireless devices associated with the target SI update indication. In another aspect, the identification of the one or more subsets of wireless devices associated with the target SI update indication may be sent in a downlink payload associated with a downlink grant of SI in the target SI update indication, the downlink payload including a bitmap indicating the one or more subsets of wireless devices associated with the target SI update indication.

[0157] At 1024, the network node 1004 may send at least one SI update for the one or more subsets of wireless devices based on the downlink grant for at least one SI update associated with the one or more subsets of wireless devices in the target SI update indication at 1020. The first network device 1002 may receive at least one SI update from the network node 1004 based on the downlink grant for at least one SI update associated with the one or more subsets of wireless devices including the wireless device received in the target SI update indication at 1020.

[0158] At 1026 and 1026', the network node 1004 may send a common SI indication for the set of wireless devices associated with the network node 1004. In one aspect, the common SI indication for the set of wireless devices associated with the network node 1004 may be sent in common DCI 1_0 scrambled with a common P-RNTI based on commanding one or more subsets of wireless devices to monitor common DCI 1_0 scrambled with a common P-RNTI and DCI 1_0 scrambled with a P2-RNTI, wherein the common SI indication includes a downlink grant for a common SI update associated with the set of wireless devices. That is, the network node 1004 may send a common SI indicator for the first network device 1002 and the second network device 1003 in a common DCI 1_0 scrambled with a common P-RNTI based on commanding one or more subsets of wireless devices to monitor a common DCI 1_0 scrambled with a common P-RNTI and a DCI 1_0 scrambled with a P2-RNTI, wherein the common SI indicator includes a downlink grant (1026 and 1026') of a common SI update associated with the set of wireless devices. On the other hand, the common SI indicator for the set of wireless devices associated with the network node 1004 may be sent in (A) a first common DCI 1_0 scrambled with a P2-RNTI for the one or more subsets of wireless devices and (B) a second common DCI 1_0 scrambled with a common P-RNTI for wireless devices other than the one or more subsets of wireless devices in the set of wireless devices based on commanding one or more subsets of wireless devices to monitor a DCI 1_0 scrambled with a P2-RNTI. That is, the network node 1004 may send a common SI indicator to the first network device 1002 in a first common DCI 1_0 scrambled with the P2-RNTI for one or more subsets of wireless devices (at 1026), and send a common SI indicator to the second network device 1003 in a second common DCI 1_0 scrambled with the common P-RNTI for wireless devices other than the one or more subsets of the wireless device set (at 1026').

[0159] At 1026, the first network device 1002 may receive a common SI indication for a set of wireless devices associated with the network node 1004 in a common DCI 1_0 scrambled with a common P-RNTI based on an instruction to the wireless device to monitor the common DCI 1_0 scrambled with a common P-RNTI and the DCI 1_0 scrambled with a P2-RNTI, the common SI indication including a downlink grant of a common SI update associated with the set of wireless devices.

[0160] At 1028, the first network device 1002 may update the SI based on the at least one SI update received from the network node 1004. In one example, the at least one SI update may include at least one SI update received at 1024 based on a targeted SI update indication for one or more subsets of wireless devices including the wireless device as received at 1020. In another example, the at least one SI update may include a common SI update received based on a common SI indication as received at 1026.

[0161] Fig.11 1100 is a flow chart of a method of wireless communication. The method may be performed by a network device (e.g., UE 104; IAB node 103; network device 1002; apparatus 1504). The network device may be connected to a network node, and the network node may send a target SI update indication for one or more subsets of wireless devices among a set of wireless devices associated with the network node or for a directional subset. The network devices in the one or more subsets of the wireless devices may receive a target SI update indication and an associated target SI update from the network node. By sending a target SI update indication and a target SI update to one or more subsets of network devices related to the target SI update, the network node and the network device may reduce overall power consumption. Here, the wireless device may include at least one of a user equipment or a sub-IAB node.

[0162] The network node and the network device may communicate to each other whether the network node and / or the network device may support features of the targeted SI update indication.

[0163] At 1106, the network device may receive from the network node a notification that the network node supports a target SI update indication for one or more subsets of wireless devices, wherein at 1120, the target SI update indication may be received from the network node based on the notification that the network node supports the target SI update indication for one or more subsets of wireless devices. For example, at 1006, the first network device 1002 may receive from the network node 1004 a notification that the network node 1004 supports a target SI update indication for one or more subsets of wireless devices, wherein at 1020, the target SI update indication may be received from the network node 1004 based on the notification that the network node 1004 supports the target SI update indication for one or more subsets of wireless devices. In addition, 1106 may be performed by the target SI indication receiving component 198.

[0164] At 1108, the network device may send a capability of the one or more subsets of wireless devices to support a targeted SI update indication of a downlink grant including at least one SI update associated with the one or more subsets of wireless devices, wherein the targeted SI update indication may be received from the network node based on the capability of the wireless devices sent to the network node at 1120. For example, at 1008, the first network device 1002 may send a capability of the one or more subsets of wireless devices to support a targeted SI update indication of a downlink grant including at least one SI update associated with the one or more subsets of wireless devices, wherein the targeted SI update indication may be received from the network node 1004 based on the capability of the wireless devices sent to the network node 1004 at 1020. Furthermore, 1108 may be performed by the targeted SI indication receiving component 198.

[0165] At 1110, the network device may receive a configuration or reconfiguration of an association between a target SI update indication and one or more subsets of wireless devices including the wireless device, wherein at 1120, a target SI update indication may be received from a network node based on the configuration or reconfiguration of the association between the target SI update indication and one or more subsets of wireless devices including the wireless device. The configuration of the target SI update indication may also include a mapping of a target group IE block to a corresponding bit field of DCI 1_0 that identifies a subset of network devices. Based on the configuration, the network node may indicate that the target SI update indication is for one or more subsets of wireless devices including the network device, and identifies one or more subsets of the wireless devices. The configuration or reconfiguration of the association between the target SI update indication and one or more subsets of wireless devices may be based on at least one of the following: the direction of one or more subsets of network devices relative to the network node, the context of the supported features, etc. In one aspect, the configuration or reconfiguration of the target SI update indication, the target group SI block, and the corresponding subset of network devices may be explicitly indicated to the network device set. The network node may send a bitmap or list of IE indexes or names to the network device set to indicate the SI IE associated with each target group SI block. On the other hand, the configuration of the target SI update indication, the target group SI block, and the corresponding network device subset can be implicitly indicated by the association of each target group SI block with a specific feature (e.g., IAB, RedCap, CovEnh, NTN, NES, PS, UAV, etc.). For example, at 1010, the first network device 1002 can receive a configuration or reconfiguration of an association between the target SI update indication and one or more subsets of wireless devices including the wireless device, wherein at 1020, the target SI update indication can be received from the network node 1004 based on the configuration or reconfiguration of the association between the target SI update indication and one or more subsets of wireless devices including the wireless device. In addition, 1110 can be performed by the target SI indication receiving component 198.

[0166] At 1112, the network device may receive from the network node a notification that the network node supports a target SI update indication for one or more subsets of wireless devices, wherein the target SI update indication may be received from the network node based on the notification that the network node supports the target SI update indication for one or more subsets of wireless devices at 1116. For example, at 1012, the network device 1002 may receive from the network node 1004 a notification that the network node 1004 supports a target SI update indication for one or more subsets of wireless devices, wherein the target SI update indication may be received from the network node 1004 based on the notification that the network node 1004 supports the target SI update indication for one or more subsets of wireless devices at 1016. In addition, 1112 may be performed by the target SI indication receiving component 198.

[0167] At 1114, the network device can send the wireless device's ability to support the behavior of the wireless device, wherein the behavior of the wireless device is commanded based on the capability of the wireless device. For example, at 1014, the first network device 1002 can send the wireless device's ability to support the behavior of the wireless device, wherein the behavior of the wireless device is commanded based on the capability of the wireless device. In addition, 1114 can be performed by the target SI indication receiving component 198.

[0168] At 1116, the network device may receive instructions for the behavior of the wireless device to (A) monitor DCI 1_0 scrambled with a common P-RNTI and DCI 1_0 scrambled with a P2-RNTI, the common P-RNTI being associated with the set of wireless devices, or (B) monitor DCI 1_0 scrambled with a P2-RNTI. A network device that can support P2-RNTI (or support multiple P2-RNTIs) may take one of the following two behaviors. First, the network device may be configured to monitor DCI 1_0 scrambled with both P-RNTI and P2-RNTI. Second, the network device may be configured to monitor DCI 1_0 scrambled with P2-RNTI. The network node may command the network device to select one of the first behavior or the second behavior. Based on the behavior that the network device can follow, the network node may send a public SI update in a corresponding manner. For example, at 1016, the first network device 1002 may receive instructions for the behavior of the wireless device to (A) monitor DCI 1_0 scrambled with a common P-RNTI and DCI 1_0 scrambled with a P2-RNTI, the common P-RNTI being associated with the wireless device set, or (B) monitor DCI 1_0 scrambled with a P2-RNTI. The first network device 1002 that can support P2-RNTI (or support multiple P2-RNTIs) may take one of the following two behaviors. In addition, 1116 may be performed by the target SI indication receiving component 198.

[0169] At 1120, the network device may receive a target SI update indication for one or more subsets of wireless devices including the wireless device from the network node, the target SI update indication including a downlink grant of at least one SI update associated with the one or more subsets of wireless devices in the set of wireless devices. For example, at 1020, the first network device 1002 may receive a target SI update indication for one or more subsets of wireless devices including the wireless device from the network node 1004, the target SI update indication including a downlink grant of at least one SI update associated with the one or more subsets of wireless devices in the set of wireless devices. In addition, 1120 may be performed by the target SI indication receiving component 198.

[0170] In one aspect, the target SI update indication may be directed to a subset of directions and output for transmission in the subset of directions. That is, some parameters of the SI may be beam-specific (e.g., transmit receive point (TRP) specific), and updates to the beam-specific SI may be related to the direction relative to the network node, and the SI configuration and update may be related to the direction of one or more subsets of network devices relative to the network node. Here, the target SI update may be related to the network device, but not to another network device that is not in one or more subsets of the network device.

[0171] In some aspects, the target SI update indication may include an indicator that the target SI update indication is associated with one or more subsets of wireless devices. In one aspect, the target SI update indication may be sent in DCI 1_0 scrambled with a common P-RNTI. At least one of the short message indicator of DCI 1_0 or at least one bit of the short message of DCI 1_0 may be an indicator that the target SI update indication is associated with one or more subsets of wireless devices. In one example, the reserved bits of the short message of DCI 1_0 may include a bitmap indicating one or more subsets of wireless devices associated with the target SI update indication, and the presence of the bitmap in the reserved bits of the short message of DCI 1_0 may be an indicator that the target SI update indication is associated with one or more subsets of wireless devices. In another example, the short message indicator of DCI 1_0 may be an indicator that the target SI update indication is associated with one or more subsets of wireless devices, wherein the short message of DCI 1_0 may include a bitmap indicating one or more subsets of wireless devices associated with the target SI update indication.

[0172] On the other hand, the P-RNTI may be a P2-RNTI associated with one or more subsets of wireless devices, and the P2-RNTI may be an indicator that the target SI update indication is associated with one or more subsets of wireless devices. The short message of DCI 1_0 scrambled with the P2-RNTI may include a bitmap indicating one or more subsets of wireless devices associated with the target SI update indication. On the other hand, at least one reserved bit of DCI 1_0 may be an indicator that the target SI update indication is associated with one or more subsets of wireless devices. At 1122, the network node may send an identification of one or more subsets of wireless devices associated with the target SI update indication. On the other hand, the target SI update indication for one or more subsets of wireless devices may be sent in a PDSCH or a dedicated group common PDCCH.

[0173] At 1122, based on at least one reserved bit of DCI 1_0 being an indicator that the target SI update indication is associated with one or more subsets of wireless devices, the network device may receive identifications of one or more subsets of wireless devices associated with the target SI update indication. In one aspect, the identifications of one or more subsets of wireless devices associated with the target SI update indication may be sent in a second DCI 1_0 scrambled with a P2-RNTI associated with one or more subsets of wireless devices, the short message of the second DCI 1_0 including a bitmap indicating one or more subsets of wireless devices associated with the target SI update indication. On the other hand, the identifications of one or more subsets of wireless devices associated with the target SI update indication may be sent in a downlink payload associated with a downlink grant of SI in the target SI update indication, the downlink payload including a bitmap indicating one or more subsets of wireless devices associated with the target SI update indication. For example, at 1022, based on at least one reserved bit of DCI 1_0 being an indicator that the target SI update indication is associated with one or more subsets of wireless devices, the first network device 1002 may receive identifications of one or more subsets of wireless devices associated with the target SI update indication. In addition, 1122 can be executed by the target SI indication receiving component 198.

[0174] At 1124, the network device may receive at least one SI update from the network node based on the downlink grant of at least one SI update associated with one or more subsets of wireless devices including the wireless device received in the target SI update indication at 1120. For example, at 1024, the first network device 1002 may receive at least one SI update from the network node 1004 based on the downlink grant of at least one SI update associated with one or more subsets of wireless devices including the wireless device received in the target SI update indication at 1020. Furthermore, 1124 may be performed by the target SI indication receiving component 198.

[0175] At 1126, the network device may receive a public SI indication for a set of wireless devices associated with the network node in a public DCI 1_0 scrambled with a common P-RNTI based on the instruction to the wireless device to monitor the public DCI 1_0 scrambled with a common P-RNTI and the DCI 1_0 scrambled with a P2-RNTI, the public SI indication including a downlink grant of a public SI update associated with the set of wireless devices. For example, at 1026, the first network device 1002 may receive a public SI indication for a set of wireless devices associated with the network node 1004 in a public DCI 1_0 scrambled with a common P-RNTI based on the instruction to the wireless device to monitor the public DCI 1_0 scrambled with a common P-RNTI and the DCI 1_0 scrambled with a P2-RNTI, the public SI indication including a downlink grant of a public SI update associated with the set of wireless devices. In addition, 1126 may be performed by the target SI indication receiving component 198.

[0176] At 1128, the network device may update the SI based on at least one SI update received from the network node. In one example, the at least one SI update may include at least one SI update received at 1124 based on a target SI update indication for one or more subsets of wireless devices including the wireless device as received at 1120. In another example, the at least one SI update may include a public SI update received based on a public SI indication as received at 1126. For example, at 1028, the first network device 1002 may update the SI based on at least one SI update received from the network node 1004. In addition, 1128 may be performed by the target SI indication receiving component 198.

[0177] Fig.121200 is a flow chart of a method of wireless communication. The method may be performed by a network device (e.g., UE 104; IAB node 103; network device 1002; apparatus 1504). The network device may be connected to a network node, and the network node may send a target SI update indication for one or more subsets of wireless devices among a set of wireless devices associated with the network node or for a directional subset. The network devices in the one or more subsets of the wireless devices may receive a target SI update indication and an associated target SI update from the network node. By sending a target SI update indication and a target SI update to one or more subsets of network devices related to the target SI update, the network node and the network device may reduce overall power consumption. Here, the wireless device may include at least one of a user equipment or a sub-IAB node.

[0178] The network node and the network device may communicate to each other whether the network node and / or the network device may support features of the targeted SI update indication.

[0179] At 1220, the network device may receive, from the network node, a target SI update indication for one or more subsets of wireless devices including the wireless device, the target SI update indication including a downlink grant of at least one SI update associated with the one or more subsets of wireless devices in the set of wireless devices. For example, at 1020, the first network device 1002 may receive, from the network node 1004, a target SI update indication for one or more subsets of wireless devices including the wireless device, the target SI update indication including a downlink grant of at least one SI update associated with the one or more subsets of wireless devices in the set of wireless devices. In addition, 1220 may be performed by the target SI indication receiving component 198.

[0180] In one aspect, the target SI update indication may be directed to a subset of directions and output for transmission in the subset of directions. That is, some parameters of the SI may be beam-specific (e.g., transmit receive point (TRP) specific), and updates to the beam-specific SI may be related to the direction relative to the network node, and the SI configuration and update may be related to the direction of one or more subsets of network devices relative to the network node. Here, the target SI update may be related to the network device, but not to another network device that is not in one or more subsets of the network device.

[0181] In some aspects, the target SI update indication may include an indicator that the target SI update indication is associated with one or more subsets of wireless devices. In one aspect, the target SI update indication may be sent in DCI 1_0 scrambled with a common P-RNTI. At least one of the short message indicator of DCI 1_0 or at least one bit of the short message of DCI 1_0 may be an indicator that the target SI update indication is associated with one or more subsets of wireless devices. In one example, the reserved bits of the short message of DCI 1_0 may include a bitmap indicating one or more subsets of wireless devices associated with the target SI update indication, and the presence of the bitmap in the reserved bits of the short message of DCI 1_0 may be an indicator that the target SI update indication is associated with one or more subsets of wireless devices. In another example, the short message indicator of DCI 1_0 may be an indicator that the target SI update indication is associated with one or more subsets of wireless devices, wherein the short message of DCI 1_0 may include a bitmap indicating one or more subsets of wireless devices associated with the target SI update indication.

[0182] On the other hand, the P-RNTI may be a P2-RNTI associated with one or more subsets of wireless devices, and the P2-RNTI may be an indicator that the target SI update indication is associated with one or more subsets of wireless devices. The short message of DCI 1_0 scrambled with the P2-RNTI may include a bitmap indicating one or more subsets of wireless devices associated with the target SI update indication. On the other hand, at least one reserved bit of DCI 1_0 may be an indicator that the target SI update indication is associated with one or more subsets of wireless devices. The network node may send an identifier of one or more subsets of wireless devices associated with the target SI update indication. On the other hand, the target SI update indication for one or more subsets of wireless devices may be sent in a PDSCH or a dedicated group common PDCCH.

[0183] At 1224, the network device may receive at least one SI update from the network node based on the downlink grant of at least one SI update associated with one or more subsets of wireless devices including the wireless device received in the target SI update indication at 1220. For example, at 1024, the first network device 1002 may receive at least one SI update from the network node 1004 based on the downlink grant of at least one SI update associated with one or more subsets of wireless devices including the wireless device received in the target SI update indication at 1020. Furthermore, 1224 may be performed by the target SI indication receiving component 198.

[0184] Fig.131300 is a flow chart of a method of wireless communication. The method may be performed by a network node (e.g., base station 102; network entity 1602 / 1760). The network node may be connected to a network device and send a target SI update indication for one or more subsets of wireless devices among a set of wireless devices associated with the network node or for a subset of directions. The network devices in the one or more subsets of wireless devices may receive a target SI update indication and an associated target SI update from the network node. By sending a target SI update indication and a target SI update to one or more subsets of network devices related to the target SI update, the network node and the network device may reduce overall power consumption. Here, the wireless device may include at least one of a user equipment or a sub-IAB node.

[0185] The network node and the network device may communicate to each other whether the network node and / or the network device may support features of the targeted SI update indication.

[0186] At 1306, the network node may send a notification that the network node may support a target SI update indication for one or more subsets of wireless devices, wherein the target SI update indication may be sent for the one or more subsets of wireless devices based on the notification that the network node supports the target SI update indication for the one or more subsets of wireless devices at 1320. For example, at 1006, the network node 1004 may send a notification that the network node 1004 may support a target SI update indication for one or more subsets of wireless devices, wherein the target SI update indication may be sent for the one or more subsets of wireless devices based on the notification that the network node 1004 supports the target SI update indication for the one or more subsets of wireless devices at 1020. In addition, 1306 may be performed by the target SI indication sending component 199.

[0187] At 1308, the network node may obtain capabilities of one or more subsets of wireless devices to support a target SI update indication of a downlink grant including at least one SI update associated with the one or more subsets of wireless devices, wherein the target SI update indication may be sent for the one or more subsets of wireless devices based on the obtained capabilities of the one or more subsets of wireless devices at 1320. For example, at 1008, the network node 1004 may obtain capabilities of one or more subsets of wireless devices to support a target SI update indication of a downlink grant including at least one SI update associated with the one or more subsets of wireless devices, wherein the target SI update indication may be sent for the one or more subsets of wireless devices based on the obtained capabilities of the one or more subsets of wireless devices at 1020. In addition, 1308 may be performed by the target SI indication sending component 199.

[0188] At 1310, the network node may receive a configuration or reconfiguration of an association between a target SI update indication and one or more subsets of wireless devices including the wireless device, wherein at 1320, the target SI update indication may be received from the network node based on the configuration or reconfiguration of the association between the target SI update indication and one or more subsets of wireless devices including the wireless device. The configuration of the target SI update indication may also include a mapping of a target group IE block to a corresponding bit field of DCI 1_0 that identifies a subset of network devices. Based on the configuration, the network node may indicate that the target SI update indication is for one or more subsets of wireless devices including the network device, and identifies one or more subsets of the wireless device. The configuration or reconfiguration of the association between the target SI update indication and one or more subsets of wireless devices may be based on at least one of the following: the direction of one or more subsets of network devices relative to the network node, the context of the supported features, etc. In one aspect, the configuration or reconfiguration of the target SI update indication, the target group SI block, and the corresponding subset of network devices may be explicitly indicated to the network device set. The network node may send a bitmap or list of IE indexes or names to the network device set to indicate the SI IE associated with each target group SI block. On the other hand, the configuration of the target SI update indication, the target group SI block, and the corresponding network device subset can be implicitly indicated by the association of each target group SI block with a specific feature (e.g., IAB, RedCap, CovEnh, NTN, NES, PS, UAV, etc.). For example, at 1010, the network node 1004 can receive a configuration or reconfiguration of an association between the target SI update indication and one or more subsets of wireless devices including the wireless device, wherein at 1020, the target SI update indication can be received from the network node 1004 based on the configuration or reconfiguration of the association between the target SI update indication and one or more subsets of wireless devices including the wireless device. In addition, 1310 can be performed by the target SI indication sending component 199.

[0189] At 1312, the network node may send a notification that the network node supports the behavior of commanding one or more subsets of wireless devices. For example, at 1012, the network node 1004 may send a notification that the network node 1004 supports the behavior of commanding one or more subsets of wireless devices. In addition, 1312 can be performed by the target SI indication sending component 199.

[0190] At 1314, the network node may obtain capabilities of the one or more subsets of wireless devices to support behaviors of the one or more subsets of wireless devices, wherein the behaviors of the one or more subsets of wireless devices are commanded based on the obtained capabilities of the one or more subsets of wireless devices at 1316. For example, at 1014, the network node 1004 may obtain capabilities of the one or more subsets of wireless devices to support behaviors of the one or more subsets of wireless devices, wherein the behaviors of the one or more subsets of wireless devices are commanded based on the obtained capabilities of the one or more subsets of wireless devices at 1016. Furthermore, 1314 may be performed by the target SI indication sending component 199.

[0191] At 1316, the network node may command the behavior of one or more subsets of wireless devices to (A) monitor DCI 1_0 scrambled with a common P-RNTI and DCI 1_0 scrambled with a P2-RNTI, the common P-RNTI being associated with the set of wireless devices, or (B) monitor DCI 1_0 scrambled with a P2-RNTI. A network device that can support P2-RNTI (or support multiple P2-RNTIs) may take one of the following two behaviors. First, the network device may be configured to monitor DCI 1_0 scrambled with both P-RNTI and P2-RNTI. Second, the network device may be configured to monitor DCI 1_0 scrambled with P2-RNTI. The network node may command the network device to select one of the first behavior or the second behavior. Based on the behavior that the network device can follow, the network node may send a public SI update in a corresponding manner. For example, at 1016, the network node 1004 can command the behavior of one or more subsets of wireless devices to (A) monitor DCI 1_0 scrambled with a common P-RNTI and DCI 1_0 scrambled with a P2-RNTI, the common P-RNTI associated with the wireless device set, or (B) monitor DCI 1_0 scrambled with a P2-RNTI. In addition, 1316 can be performed by the target SI indication sending component 199.

[0192] At 1318, the network node may obtain at least one SI update associated with one or more subsets of wireless devices in the set of wireless devices associated with the network node or with a directional subset from the network node. For example, at 1018, the network node 1004 may obtain at least one SI update associated with one or more subsets of wireless devices in the set of wireless devices associated with the network node 1004 or with a directional subset from the network node 1004. In addition, 1318 may be performed by the target SI indication sending component 199.

[0193] At 1320, the network node may send a targeted SI update indication for one or more subsets of wireless devices in the set of wireless devices associated with the network node or for a subset of directions, the targeted SI update indication including a downlink grant of at least one SI update associated with the one or more subsets of wireless devices or the subset of directions as obtained at 1318. For example, at 1020, the network node 1004 may send a targeted SI update indication for one or more subsets of wireless devices in the set of wireless devices associated with the network node 1004 or for a subset of directions, the targeted SI update indication including a downlink grant of at least one SI update associated with the one or more subsets of wireless devices or the subset of directions as obtained at 1018. Furthermore, 1320 may be performed by the target SI indication sending component 199.

[0194] In one aspect, the target SI update indication may be directed to a subset of directions and output for transmission in the subset of directions. That is, some parameters of the SI may be beam-specific (e.g., transmit receive point (TRP) specific), and updates to the beam-specific SI may be related to the direction relative to the network node, and the SI configuration and update may be related to the direction of one or more subsets of network devices relative to the network node. Here, the target SI update may be related to the network device, but not to another network device that is not in one or more subsets of the network device.

[0195] In some aspects, the target SI update indication may include an indicator that the target SI update indication is associated with one or more subsets of wireless devices. In one aspect, the target SI update indication may be sent in DCI 1_0 scrambled with a common P-RNTI. At least one of the short message indicator of DCI 1_0 or at least one bit of the short message of DCI 1_0 may be an indicator that the target SI update indication is associated with one or more subsets of wireless devices. In one example, the reserved bits of the short message of DCI 1_0 may include a bitmap indicating one or more subsets of wireless devices associated with the target SI update indication, and the presence of the bitmap in the reserved bits of the short message of DCI 1_0 may be an indicator that the target SI update indication is associated with one or more subsets of wireless devices. In another example, the short message indicator of DCI 1_0 may be an indicator that the target SI update indication is associated with one or more subsets of wireless devices, wherein the short message of DCI 1_0 may include a bitmap indicating one or more subsets of wireless devices associated with the target SI update indication.

[0196] On the other hand, the P-RNTI may be a P2-RNTI associated with one or more subsets of wireless devices, and the P2-RNTI may be an indicator that the target SI update indication is associated with one or more subsets of wireless devices. The short message of DCI 1_0 scrambled with the P2-RNTI may include a bitmap indicating one or more subsets of wireless devices associated with the target SI update indication. On the other hand, at least one reserved bit of DCI 1_0 may be an indicator that the target SI update indication is associated with one or more subsets of wireless devices. At 1122, the network node may send an identification of one or more subsets of wireless devices associated with the target SI update indication. On the other hand, the target SI update indication for one or more subsets of wireless devices may be sent in a PDSCH or a dedicated group common PDCCH.

[0197] At 1322, based on at least one reserved bit of DCI 1_0 being an indicator that the target SI update indication is associated with one or more subsets of wireless devices, the network node may send an identification of the one or more subsets of wireless devices associated with the target SI update indication. In one aspect, the identification of the one or more subsets of wireless devices associated with the target SI update indication may be sent in a second DCI 1_0 scrambled with a P2-RNTI associated with the one or more subsets of wireless devices, the short message of the second DCI 1_0 including a bitmap indicating the one or more subsets of wireless devices associated with the target SI update indication. On the other hand, the identification of the one or more subsets of wireless devices associated with the target SI update indication may be sent in a downlink payload associated with a downlink grant of SI in the target SI update indication, the downlink payload including a bitmap indicating the one or more subsets of wireless devices associated with the target SI update indication. For example, at 1022, based on at least one reserved bit of DCI 1_0 being an indicator that the target SI update indication is associated with one or more subsets of wireless devices, the network node 1004 may send an identification of the one or more subsets of wireless devices associated with the target SI update indication. In addition, 1322 can be executed by the target SI indication sending component 199.

[0198] At 1324, the network node may send at least one SI update for one or more subsets of wireless devices based on a downlink grant of at least one SI update associated with the one or more subsets of wireless devices in the target SI update indication at 1320. For example, at 1024, the network node 1004 may send at least one SI update for one or more subsets of wireless devices based on a downlink grant of at least one SI update associated with the one or more subsets of wireless devices in the target SI update indication at 1020. Furthermore, 1324 may be performed by the target SI indication sending component 199.

[0199] At 1326, the network node may send a common SI indication for the set of wireless devices associated with the network node. In one aspect, the common SI indication for the set of wireless devices associated with the network node may be sent in common DCI 1_0 scrambled with a common P-RNTI based on commanding one or more subsets of wireless devices to monitor common DCI 1_0 scrambled with a common P-RNTI and DCI 1_0 scrambled with a P2-RNTI, wherein the common SI indication includes a downlink grant for a common SI update associated with the set of wireless devices. That is, the network node may send a common SI indicator for the first network node and the second network node in common DCI 1_0 scrambled with a common P-RNTI based on commanding one or more subsets of wireless devices to monitor common DCI 1_0 scrambled with a common P-RNTI and DCI 1_0 scrambled with a P2-RNTI, wherein the common SI indication includes a downlink grant for a common SI update associated with the set of wireless devices. In another aspect, the public SI indication for the set of wireless devices associated with the network node may be sent in (A) a first public DCI 1_0 scrambled with P2-RNTI for one or more subsets of wireless devices and (B) a second public DCI 1_0 scrambled with a common P-RNTI for wireless devices other than the one or more subsets of wireless devices in the set of wireless devices based on commanding the one or more subsets of wireless devices to monitor the DCI 1_0 scrambled with P2-RNTI. That is, the network node may send the public SI indicator to the network device in the first public DCI 1_0 scrambled with P2-RNTI for one or more subsets of wireless devices, and send the public SI indicator to the other network devices in the second public DCI 1_0 scrambled with a common P-RNTI for wireless devices other than the one or more subsets of wireless devices in the set of wireless devices. For example, at 1026, the network node 1004 may send the public SI indication for the set of wireless devices associated with the network node 1004. In addition, 1326 may be performed by the target SI indication sending component 199.

[0200] Fig.141400 is a flow chart of a method of wireless communication. The method may be performed by a network node (e.g., base station 102; network entity 1602 / 1760). The network node may be connected to a network device and send a target SI update indication for one or more subsets of wireless devices among a set of wireless devices associated with the network node or for a directional subset. The network devices in the one or more subsets of wireless devices may receive a target SI update indication and an associated target SI update from the network node. By sending a target SI update indication and a target SI update to one or more subsets of network devices related to the target SI update, the network node and the network device may reduce overall power consumption. Here, the wireless device may include at least one of a user equipment or a sub-IAB node.

[0201] The network node and the network device may communicate to each other whether the network node and / or the network device may support features of the targeted SI update indication.

[0202] At 1418, the network node may obtain at least one SI update associated with one or more subsets of wireless devices in the set of wireless devices associated with the network node or with a directional subset from the network node. For example, at 1018, the network node 1004 may obtain at least one SI update associated with one or more subsets of wireless devices in the set of wireless devices associated with the network node 1004 or with a directional subset from the network node 1004. Furthermore, 1418 may be performed by the target SI indication sending component 199.

[0203] At 1420, the network node may send a targeted SI update indication for one or more subsets of wireless devices in the set of wireless devices associated with the network node or for a subset of directions, the targeted SI update indication including a downlink grant of at least one SI update associated with the one or more subsets of wireless devices or the subset of directions as obtained at 1418. For example, at 1020, the network node 1004 may send a targeted SI update indication for one or more subsets of wireless devices in the set of wireless devices associated with the network node 1004 or for a subset of directions, the targeted SI update indication including a downlink grant of at least one SI update associated with the one or more subsets of wireless devices or the subset of directions as obtained at 1018. Furthermore, 1420 may be performed by the target SI indication sending component 199.

[0204] In one aspect, the target SI update indication may be directed to a subset of directions and output for transmission in the subset of directions. That is, some parameters of the SI may be beam-specific (e.g., transmit receive point (TRP) specific), and updates to the beam-specific SI may be related to the direction relative to the network node, and the SI configuration and update may be related to the direction of one or more subsets of network devices relative to the network node. Here, the target SI update may be related to the network device, but not to another network device that is not in one or more subsets of the network device.

[0205] In some aspects, the target SI update indication may include an indicator that the target SI update indication is associated with one or more subsets of wireless devices. In one aspect, the target SI update indication may be sent in DCI 1_0 scrambled with a common P-RNTI. At least one of the short message indicator of DCI 1_0 or at least one bit of the short message of DCI 1_0 may be an indicator that the target SI update indication is associated with one or more subsets of wireless devices. In one example, the reserved bits of the short message of DCI 1_0 may include a bitmap indicating one or more subsets of wireless devices associated with the target SI update indication, and the presence of the bitmap in the reserved bits of the short message of DCI 1_0 may be an indicator that the target SI update indication is associated with one or more subsets of wireless devices. In another example, the short message indicator of DCI 1_0 may be an indicator that the target SI update indication is associated with one or more subsets of wireless devices, wherein the short message of DCI 1_0 may include a bitmap indicating one or more subsets of wireless devices associated with the target SI update indication.

[0206] On the other hand, the P-RNTI may be a P2-RNTI associated with one or more subsets of wireless devices, and the P2-RNTI may be an indicator that the target SI update indication is associated with one or more subsets of wireless devices. The short message of DCI 1_0 scrambled with the P2-RNTI may include a bitmap indicating one or more subsets of wireless devices associated with the target SI update indication. On the other hand, at least one reserved bit of DCI 1_0 may be an indicator that the target SI update indication is associated with one or more subsets of wireless devices. At 1122, the network node may send an identification of one or more subsets of wireless devices associated with the target SI update indication. On the other hand, the target SI update indication for one or more subsets of wireless devices may be sent in a PDSCH or a dedicated group common PDCCH.

[0207] Fig.151500 is a diagram illustrating an example of a hardware implementation for an apparatus 1504. The apparatus 1504 may be a UE or an IAB subnode, a component of a UE or an IAB subnode, or may implement UE or IAB subnode functionality. In some aspects, the apparatus 1504 may include a cellular baseband processor 1524 (also referred to as a modem) coupled to one or more transceivers 1522 (e.g., a cellular RF transceiver). The cellular baseband processor 1524 may include on-chip memory 1524'. In some aspects, the apparatus 1504 may also include one or more subscriber identity module (SIM) cards 1520 and an application processor 1506 coupled to a secure digital (SD) card 1508 and a screen 1510. The application processor 1506 may include on-chip memory 1506'. In some aspects, the device 1504 may also include a Bluetooth module 1512, a WLAN module 1514, an SPS module 1516 (e.g., a GNSS module), one or more sensor modules 1518 (e.g., an atmospheric pressure sensor / altimeter; a motion sensor such as an inertial management unit (IMU), a gyroscope, and / or an accelerometer; light detection and ranging (LIDAR), radio-aided detection and ranging (RADAR), sound navigation and ranging (SONAR), a magnetometer, audio, and / or other technologies for positioning), an additional memory module 1526, a power source 1530, and / or a camera 1532. The Bluetooth module 1512, the WLAN module 1514, and the SPS module 1516 may include an on-chip transceiver (TRX) (or, in some cases, only a receiver (RX)). The Bluetooth module 1512, the WLAN module 1514, and the SPS module 1516 may include their own dedicated antennas and / or communicate using antennas 1580. The cellular baseband processor 1524 communicates with the UE 104 and / or with the RU associated with the network entity 1502 through the transceiver 1522 via one or more antennas 1580. The cellular baseband processor 1524 and the application processor 1506 may each include a computer-readable medium / memory 1524', 1506', respectively. The additional memory module 1526 may also be considered as a computer-readable medium / memory. Each computer-readable medium / memory 1524', 1506', 1526 may be non-transitory. The cellular baseband processor 1524 and the application processor 1506 are each responsible for general processing, including executing software stored on a computer-readable medium / memory. The software enables the cellular baseband processor 1524 / application processor 1506 to perform the various functions described above when executed by the cellular baseband processor 1524 / application processor 1506. The computer-readable medium / memory can also be used to store data manipulated by the cellular baseband processor 1524 / application processor 1506 when executing the software.The cellular baseband processor 1524 / application processor 1506 may be a component of the UE 350 and may include the memory 360 and / or at least one of the TX processor 368, the RX processor 356, and the controller / processor 359. In one configuration, the device 1504 may be a processor chip (modem and / or application) and include only the cellular baseband processor 1524 and / or the application processor 1506, while in another configuration, the device 1504 may be the entire UE (e.g., see. Figure 3 350) and includes additional modules of device 1504.

[0208] As discussed above, the target SI indication receiving component 198 is configured to receive a target SI update indication for one or more subsets of wireless devices including the wireless device from a network node (the target SI update indication includes a downlink grant of at least one SI update associated with one or more subsets of wireless devices in the set of wireless devices), and receive at least one SI update from the network node based on the downlink grant of at least one SI update associated with one or more subsets of wireless devices including the wireless device. The target SI indication receiving component 198 may be located in the cellular baseband processor 1524, the application processor 1506, or in both the cellular baseband processor 1524 and the application processor 1506. The target SI indication receiving component 198 may be one or more hardware components specifically configured to perform the process / algorithm, implemented by one or more processors configured to perform the process / algorithm, stored in a computer-readable medium for implementation by one or more processors, or some combination thereof. As shown, the device 1504 may include multiple components configured for various functions. In one configuration, the apparatus 1504 (specifically, the cellular baseband processor 1524 and / or the application processor 1506) includes: a means for receiving a target SI update indication for one or more subsets of wireless devices including the wireless device from a network node, the target SI update indication including a downlink grant of at least one SI update associated with one or more subsets of wireless devices in a set of wireless devices; and a means for receiving at least one SI update from the network node based on the downlink grant of at least one SI update associated with one or more subsets of wireless devices including the wireless device. In one configuration, the target SI update indication includes an indicator that the target SI update indication is associated with one or more subsets of wireless devices including the wireless device, and wherein the target SI update indication is received in a DCI 1_0 scrambled with a P-RNTI. In one configuration, at least one of a short message indicator of the DCI 1_0 or at least one bit of the short message of the DCI 1_0 is an indicator that the target SI update indication is associated with one or more subsets of wireless devices including the wireless device. In one configuration, the reserved bits of the short message of DCI 1_0 include a bitmap indicating one or more subsets of wireless devices associated with the target SI update indication, and the presence of the bitmap in the reserved bits of the short message of DCI 1_0 is an indicator that the target SI update indication is associated with one or more subsets of wireless devices including the wireless device. In one configuration, the short message indicator of DCI 1_0 is an indicator that the target SI update indication is associated with one or more subsets of wireless devices including the wireless device, wherein the short message of DCI 1_0 includes a bitmap indicating one or more subsets of wireless devices associated with the target SI update indication.The P-RNTI is a P2_RNTI associated with one or more subsets of wireless devices including the wireless device, and the P2-RNTI is an indicator that the target SI update indication is associated with the one or more subsets of wireless devices including the wireless device, and wherein the short message of the DCI 1_0 scrambled with the P2-RNTI includes a bitmap indicating the one or more subsets of wireless devices associated with the target SI update indication. In one configuration, at least one reserved bit of the DCI 1_0 is an indicator that the target SI update indication is associated with the one or more subsets of wireless devices including the wireless device, wherein the at least one processor is further configured to receive an identification of the one or more subsets of wireless devices associated with the target SI update indication. In one configuration, the identification of one or more subsets of wireless devices associated with the target SI update indication is received in at least one of the following: a second DCI 1_0 scrambled with a P2_RNTI associated with one or more subsets of wireless devices including the wireless device, the short message of the second DCI 1_0 including a bitmap indicating one or more subsets of wireless devices associated with the target SI update indication; or a downlink payload associated with a downlink grant of SI in the target SI update indication, the downlink payload including a bitmap indicating one or more subsets of wireless devices associated with the target SI update indication. In one configuration, the apparatus 1504 (specifically, the cellular baseband processor 1524 and / or the application processor 1506) also includes a component for receiving a configuration or reconfiguration of an association between the target SI update indication and the one or more subsets of wireless devices including the wireless device, wherein the target SI update indication is received from the network node based on the configuration or reconfiguration of the association between the target SI update indication and the one or more subsets of wireless devices including the wireless device. In one configuration, the apparatus 1504 (specifically, the cellular baseband processor 1524 and / or the application processor 1506) further comprises a component for receiving from a network node a notification that the network node supports a target SI update indication for one or more subsets of wireless devices, or for sending a capability of the one or more subsets of wireless devices to support a target SI update indication for a downlink grant including at least one SI update associated with the one or more subsets of wireless devices, wherein the target SI update indication is received from the network node based on the capability of the wireless device of the network node supporting the target SI update indication for one or more subsets of wireless devices or sent to the network node.In one configuration, the apparatus 1504 (specifically, the cellular baseband processor 1524 and / or the application processor 1506) further includes a component for receiving instructions for the behavior of the wireless device to perform the following: (A) monitor DCI 1_0 scrambled with a common P-RNTI and DCI 1_0 scrambled with a P2-RNTI, the common P-RNTI being associated with a set of wireless devices, or (B) monitor DCI 1_0 scrambled with a P2-RNTI. In one configuration, the apparatus 1504 (specifically, the cellular baseband processor 1524 and / or the application processor 1506) further includes a component for receiving a notification that a network node supports the behavior of commanding a wireless device, or a component for sending a wireless device's ability to support the behavior of the wireless device, wherein the behavior of the wireless device is commanded based on the ability of the wireless device. In one configuration, the target SI update indication for one or more subsets of wireless devices is received in a PDSCH or a dedicated group common PDCCH. The component can be a target SI indication receiving component 198 of the apparatus 1504 configured to perform the functions recorded by the component. As described above, the apparatus 1504 may include the TX processor 368, the RX processor 356, and the controller / processor 359. Thus, in one configuration, the means may be the TX processor 368, the RX processor 356, and / or the controller / processor 359 configured to perform the functions recited by the means.

[0209] Fig.161600 is a diagram illustrating an example of a hardware implementation for a network entity 1602. The network entity 1602 may be a BS, a component of a BS, or may implement BS functionality. The network entity 1602 may include at least one of a CU 1610, a DU 1630, or a RU 1640. For example, depending on the layer functionality handled by the target SI indication sending component 199, the network entity 1602 may include a CU 1610; both a CU 1610 and a DU 1630; each of the CU 1610, the DU 1630, and the RU 1640; the DU 1630; both a DU 1630 and a RU 1640; or a RU 1640. The CU 1610 may include a CU processor 1612. The CU processor 1612 may include an on-chip memory 1612'. In some aspects, the CU 1610 may also include an additional memory module 1614 and a communication interface 1618. CU 1610 communicates with DU 1630 via a midhaul link, such as an F1 interface. DU 1630 may include a DU processor 1632. DU processor 1632 may include on-chip memory 1632'. In some aspects, DU 1630 may also include additional memory modules 1634 and a communication interface 1638. DU 1630 communicates with RU 1640 via a fronthaul link. RU 1640 may include a RU processor 1642. RU processor 1642 may include on-chip memory 1642'. In some aspects, RU 1640 may also include additional memory modules 1644, one or more transceivers 1646, antenna 1680, and communication interface 1648. RU 1640 communicates with UE 104. On-chip memory 1612', 1632', 1642' and additional memory modules 1614, 1634, 1644 may each be considered a computer-readable medium / memory. Each computer readable medium / memory may be non-transitory. Each of processors 1612, 1632, 1642 is responsible for general processing, including executing software stored on the computer readable medium / memory. The software, when executed by the corresponding processor, causes the processor to perform the various functions described above. The computer readable medium / memory may also be used to store data manipulated by the processor when executing the software.

[0210] As discussed above, the target SI indication sending component 199 is configured to obtain from the network node at least one SI update associated with one or more subsets of wireless devices among the set of wireless devices associated with the network node or with a subset of directions, and output a target SI update indication for one or more subsets of wireless devices among the set of wireless devices associated with the network node or with a subset of directions for transmission, the target SI update indication including a downlink grant of at least one SI update associated with one or more subsets of wireless devices or with a subset of directions. The target SI indication sending component 199 may be within one or more processors of one or more of the CU 1610, the DU 1630, and the RU 1640. The target SI indication sending component 199 may be one or more hardware components specifically configured to perform the process / algorithm, implemented by one or more processors configured to perform the process / algorithm, stored in a computer-readable medium for implementation by one or more processors, or some combination thereof. The network entity 1602 may include a variety of components configured for various functions. In one configuration, the network entity 1602 includes: a component for obtaining from a network node at least one SI update associated with one or more subsets of wireless devices in a set of wireless devices associated with the network node or with a directional subset; and a component for outputting a target SI update indication for one or more subsets of wireless devices in a set of wireless devices associated with the network node or with a directional subset for transmission, the target SI update indication including a downlink grant of at least one SI update associated with the one or more subsets of wireless devices or the directional subset. In one configuration, the at least one processor is further configured to output at least one SI update for one or more subsets of wireless devices for transmission based on a downlink grant of at least one SI update associated with the one or more subsets of wireless devices, wherein the wireless device subset includes at least one of a user equipment or a sub-IAB node. In one configuration, the target SI update indication is for the directional subset and is output for transmission in the directional subset. In one configuration, the targeted SI update indication includes an indicator that the targeted SI update indication is associated with one or more subsets of wireless devices, and wherein the targeted SI update indication is output for transmission in DCI 1_0 scrambled with the P-RNTI. In one configuration, at least one of the short message indicator of DCI 1_0 or at least one bit of the short message of DCI 1_0 is an indicator that the targeted SI update indication is associated with one or more subsets of wireless devices. In one configuration, the reserved bits of the short message of DCI 1_0 include a bitmap indicating one or more subsets of wireless devices associated with the targeted SI update indication, and the presence of the bitmap in the reserved bits of the short message of DCI 1_0 is an indicator that the targeted SI update indication is associated with one or more subsets of wireless devices.In one configuration, the short message indicator of DCI 1_0 is an indicator that the target SI update indication is associated with one or more subsets of wireless devices, wherein the short message of DCI 1_0 includes a bitmap indicating the one or more subsets of wireless devices associated with the target SI update indication. In one configuration, the P-RNTI is a P2_RNTI associated with one or more subsets of wireless devices, and the P2-RNTI is an indicator that the target SI update indication is associated with one or more subsets of wireless devices, and wherein the short message of DCI 1_0 scrambled with the P2-RNTI includes a bitmap indicating the one or more subsets of wireless devices associated with the target SI update indication. In one configuration, at least one reserved bit of DCI 1_0 is an indicator that the target SI update indication is associated with one or more subsets of wireless devices, wherein the at least one processor is further configured to output an identification of the one or more subsets of wireless devices associated with the target SI update indication for transmission. In one configuration, identification of one or more subsets of wireless devices associated with a target SI update indication is output for transmission in at least one of: a second DCI 1_0 scrambled with a P2_RNTI associated with one or more subsets of wireless devices, a short message of the second DCI 1_0 including a bitmap indicating one or more subsets of wireless devices associated with the target SI update indication; or a downlink payload associated with a downlink grant of SI in the target SI update indication, the downlink payload including a bitmap indicating one or more subsets of wireless devices associated with the target SI update indication. In one configuration, the network entity 1602 further includes a component for outputting a configuration or reconfiguration of an association between the target SI update indication and the one or more subsets of wireless devices for transmission, wherein the target SI update indication is output for transmission for the one or more subsets of wireless devices based on the configuration or reconfiguration of the association between the target SI update indication and the one or more subsets of wireless devices. In one configuration, the network entity 1602 further comprises a component for outputting a notification for sending that the network node supports a target SI update indication for one or more subsets of wireless devices, or a component for obtaining a capability of one or more subsets of wireless devices to support a target SI update indication for a downlink grant including at least one SI update associated with the one or more subsets of wireless devices, wherein the target SI update indication is output for sending to the one or more subsets of wireless devices based on the notification that the network node supports the target SI update indication for the one or more subsets of wireless devices or the obtained capability of the one or more subsets of wireless devices.In one configuration, the network entity 1602 further includes means for commanding the behavior of one or more subsets of wireless devices to: (A) monitor DCI 1_0 scrambled with a common P-RNTI and DCI 1_0 scrambled with a P2-RNTI, the common P-RNTI being associated with a set of wireless devices, or (B) monitor DCI 1_0 scrambled with a P2-RNTI. In one configuration, the network entity 1602 further includes: means for outputting a notification that the network node supports commanding the behavior of one or more subsets of wireless devices for transmission; or means for obtaining the capability of one or more subsets of wireless devices to support the behavior of the one or more subsets of wireless devices, wherein the behavior of the one or more subsets of wireless devices is commanded based on the obtained capability of the one or more subsets of wireless devices. In one configuration, the target SI update indication for the one or more subsets of wireless devices is output for transmission in a PDSCH or a dedicated group common PDCCH. The means may be a target SI indication sending component 199 of the network entity 1602 configured to perform the functions recited by the means. As described above, the network entity 1602 may include the TX processor 316, the RX processor 370, and the controller / processor 375. Thus, in one configuration, the means may be the TX processor 316, the RX processor 370, and / or the controller / processor 375 configured to perform the functions recited by the means.

[0211] Fig.17 1700 is an example of a hardware implementation for a network entity 1760. In one example, the network entity 1760 may be within the core network 120. The network entity 1760 may include a network processor 1712. The network processor 1712 may include an on-chip memory 1712'. In some aspects, the network entity 1760 may also include an additional memory module 1714. The network entity 1760 communicates with the CU 1702 directly (e.g., backhaul link) or indirectly (e.g., through the RIC) via a network interface 1780. The on-chip memory 1712' and the additional memory module 1714 may each be considered as a computer-readable medium / memory. Each computer-readable medium / memory may be non-transitory. The processor 1712 is responsible for general processing, including executing software stored on a computer-readable medium / memory. The software, when executed by the corresponding processor, enables the processor to perform the various functions described above. The computer-readable medium / memory may also be used to store data manipulated by the processor when executing the software.

[0212] As discussed above, the target SI indication sending component 199 is configured to obtain from the network node at least one SI update associated with one or more subsets of wireless devices in the set of wireless devices associated with the network node or with a subset of directions, and output a target SI update indication for one or more subsets of wireless devices in the set of wireless devices associated with the network node or with a subset of directions for transmission, the target SI update indication including a downlink grant of at least one SI update associated with one or more subsets of wireless devices or with a subset of directions. The target SI indication sending component 199 may be within the processor 1712. The target SI indication sending component 199 may be one or more hardware components specifically configured to perform the process / algorithm, implemented by one or more processors configured to perform the process / algorithm, stored in a computer-readable medium for implementation by one or more processors, or some combination thereof. The network entity 1760 may include a variety of components configured for various functions. In one configuration, the network entity 1760 includes: a component for obtaining from a network node at least one SI update associated with one or more subsets of wireless devices in a set of wireless devices associated with the network node or with a directional subset; and a component for outputting a target SI update indication for one or more subsets of wireless devices in a set of wireless devices associated with the network node or with a directional subset for transmission, the target SI update indication including a downlink grant of at least one SI update associated with the one or more subsets of wireless devices or the directional subset. In one configuration, the at least one processor is further configured to output at least one SI update for one or more subsets of wireless devices for transmission based on a downlink grant of at least one SI update associated with the one or more subsets of wireless devices, wherein the wireless device subset includes at least one of a user equipment or a sub-IAB node. In one configuration, the target SI update indication is for the directional subset and is output for transmission in the directional subset. In one configuration, the targeted SI update indication includes an indicator that the targeted SI update indication is associated with one or more subsets of wireless devices, and wherein the targeted SI update indication is output for transmission in DCI 1_0 scrambled with the P-RNTI. In one configuration, at least one of the short message indicator of DCI 1_0 or at least one bit of the short message of DCI 1_0 is an indicator that the targeted SI update indication is associated with one or more subsets of wireless devices. In one configuration, the reserved bits of the short message of DCI 1_0 include a bitmap indicating one or more subsets of wireless devices associated with the targeted SI update indication, and the presence of the bitmap in the reserved bits of the short message of DCI 1_0 is an indicator that the targeted SI update indication is associated with one or more subsets of wireless devices.In one configuration, the short message indicator of DCI 1_0 is an indicator that the target SI update indication is associated with one or more subsets of wireless devices, wherein the short message of DCI 1_0 includes a bitmap indicating the one or more subsets of wireless devices associated with the target SI update indication. In one configuration, the P-RNTI is a P2_RNTI associated with one or more subsets of wireless devices, and the P2-RNTI is an indicator that the target SI update indication is associated with one or more subsets of wireless devices, and wherein the short message of DCI 1_0 scrambled with the P2-RNTI includes a bitmap indicating the one or more subsets of wireless devices associated with the target SI update indication. In one configuration, at least one reserved bit of DCI 1_0 is an indicator that the target SI update indication is associated with one or more subsets of wireless devices, wherein the at least one processor is further configured to output an identification of the one or more subsets of wireless devices associated with the target SI update indication for transmission. In one configuration, identification of one or more subsets of wireless devices associated with a target SI update indication is output for transmission in at least one of: a second DCI 1_0 scrambled with a P2_RNTI associated with one or more subsets of wireless devices, a short message of the second DCI 1_0 including a bitmap indicating one or more subsets of wireless devices associated with the target SI update indication; or a downlink payload associated with a downlink grant of SI in the target SI update indication, the downlink payload including a bitmap indicating one or more subsets of wireless devices associated with the target SI update indication. In one configuration, the network entity 1760 further includes a component for outputting a configuration or reconfiguration of an association between the target SI update indication and the one or more subsets of wireless devices for transmission, wherein the target SI update indication is output for transmission for the one or more subsets of wireless devices based on the configuration or reconfiguration of the association between the target SI update indication and the one or more subsets of wireless devices. In one configuration, the network entity 1760 further comprises a component for outputting a notification for sending that the network node supports a target SI update indication for one or more subsets of wireless devices, or a component for obtaining a capability of one or more subsets of wireless devices to support a target SI update indication for a downlink grant including at least one SI update associated with the one or more subsets of wireless devices, wherein the target SI update indication is output for sending to the one or more subsets of wireless devices based on the notification that the network node supports the target SI update indication for the one or more subsets of wireless devices or the obtained capability of the one or more subsets of wireless devices.In one configuration, the network entity 1760 further includes means for commanding the behavior of one or more subsets of wireless devices to: (A) monitor DCI 1_0 scrambled with a common P-RNTI and DCI 1_0 scrambled with a P2-RNTI, the common P-RNTI being associated with a set of wireless devices, or (B) monitor DCI 1_0 scrambled with a P2-RNTI. In one configuration, the network entity 1760 further includes: means for outputting a notification that the network node supports commanding the behavior of one or more subsets of wireless devices for transmission; or means for obtaining the capability of one or more subsets of wireless devices to support the behavior of the one or more subsets of wireless devices, wherein the behavior of the one or more subsets of wireless devices is commanded based on the obtained capability of the one or more subsets of wireless devices. In one configuration, the target SI update indication for the one or more subsets of wireless devices is output for transmission in a PDSCH or a dedicated group common PDCCH. The means may be a target SI indication sending component 199 of the network entity 1760 configured to perform the functions recited by the means.

[0213] Based on some aspects of the current disclosure, a network node may obtain at least one SI update associated with one or more subsets of wireless devices in a set of wireless devices associated with the network node or with a directional subset from the network node, and send a target SI update indication for one or more subsets of wireless devices in a set of wireless devices associated with the network node or with a directional subset, the target SI update indication including a downlink grant of at least one SI update associated with one or more subsets of wireless devices or with a directional subset. A network device in the network device subset may receive a target SI update indication for one or more subsets of wireless devices including the wireless device from the network node (the target SI update indication including a downlink grant of at least one SI update associated with one or more subsets of wireless devices in the set of wireless devices), and receive the at least one SI update from the network node based on the downlink grant of at least one SI update associated with one or more subsets of wireless devices including the wireless device. In one aspect, the target SI update indication is for the directional subset. In another aspect, the target SI update indication includes an indicator that the target SI update indication is associated with one or more subsets of the wireless devices. Therefore, the network node may send a target SI update indication to one or more subsets of network devices, and network devices other than the one or more subsets of network devices do not need to receive the target SI update, thereby reducing the overall power consumption for sending the target SI update indication and the target SI update.

[0214] It should be understood that the specific order or hierarchy of the blocks in the disclosed process / flowchart is only an illustration of the exemplary method. It should be understood that the specific order or hierarchy of the blocks in the process / flowchart can be rearranged based on design preferences. In addition, some blocks can be combined or omitted. The attached method claims provide the elements of each block in a sample order, but are not limited to the specific order or hierarchy provided.

[0215] The foregoing description is provided to enable any person skilled in the art to practice the various aspects described herein. Various modifications to these aspects will be apparent to those skilled in the art, and the general principles defined herein can be applied to other aspects. Therefore, the claims are not limited to the various aspects described herein, but should be given the full scope consistent with the language claims. Unless otherwise specified, reference to an element in the singular form does not mean "one and only one", but "one or more". Terms such as "if", "when ..." and "at ..." do not mean a direct temporal relationship or reaction. That is, these phrases, such as "when ...", do not mean an instant action in response to the occurrence of an action or during the occurrence of an action, but only mean that if the condition is met, the action will occur without a specific or instantaneous time constraint to make the action occur. The word "exemplary" is used herein to mean "used as an example, instance, or illustration". Any aspect described as "exemplary" herein is not necessarily interpreted as being preferred or having an advantage over other aspects. Unless otherwise specified, the term "some" refers to one or more. Combinations such as "at least one of A, B, or C," "one or more of A, B, or C," "at least one of A, B and C," "one or more of A, B, and C," and "A, B, C, or any combination thereof" include any combination of A, B, and / or C, and may include multiple A, multiple B, or multiple C. Specifically, combinations such as "at least one of A, B, or C," "one or more of A, B, or C," "at least one of A, B, and C," "one or more of A, B, and C," and "A, B, C, or any combination thereof" may be only A, only B, only C, A and B, A and C, B and C, or A and B and C, where any such combination may contain one or more members of A, B, or C. A set should be interpreted as a set of elements, where the number of elements is one or more. Thus, for a set of X, X will include one or more elements. If the first device receives data from the second device or sends data to the second device, the data may be received / sent directly between the first device and the second device, or indirectly between the first device and the second device through a collection of devices. All structural and functional equivalents of the elements throughout the various aspects described in this disclosure that are known or will later be known to a person of ordinary skill in the art are expressly incorporated herein by reference and are covered by the claims. In addition, nothing disclosed herein is intended to be dedicated to the public, regardless of whether such disclosure is explicitly stated in the claims. Words such as "module", "mechanism", "element", "device", etc. cannot replace the word "component". Therefore, no claim element will be understood as a component plus function unless the element is explicitly stated using the phrase "component for..."

[0216] As used herein, the phrase "based on" should not be interpreted as referring to a closed set of information, one or more conditions, one or more factors, etc. In other words, the phrase "based on A" (where "A" can be information, a condition, a factor, etc.) should be interpreted as "based at least on A" unless specifically stated differently.

[0217] The following aspects are merely illustrative and may be combined with other aspects or teachings described herein without limitation.

[0218] Aspect 1 is a method for performing wireless communications at a network node, the method comprising: obtaining from the network node at least one SI update associated with one or more subsets of wireless devices in a set of wireless devices associated with the network node or with a directional subset; and outputting a target SI update indication for sending for one or more subsets of the wireless devices in the set of wireless devices associated with the network node or for the directional subset, the target SI update indication comprising a downlink grant of the at least one SI update associated with the one or more subsets of the wireless devices or the directional subset.

[0219] Aspect 2 is a method according to aspect 1, wherein the at least one processor is further configured to: output the at least one SI update for one or more subsets of the wireless devices for transmission based on the downlink grant of the at least one SI update associated with the one or more subsets of the wireless devices, wherein the subset of wireless devices includes at least one of a user equipment or a sub-IAB node.

[0220] Aspect 3 is a method according to any one of aspects 1 and 2, wherein the target SI update indication is for the direction subset and is output for transmission in the direction subset.

[0221] Aspect 4 is a method according to any one of Aspects 1 to 3, wherein the target SI update indication includes an indicator that the target SI update indication is associated with one or more subsets of the wireless devices, and wherein the target SI update indication is output for transmission in DCI 1_0 encrypted with P-RNTI.

[0222] Aspect 5 is a method according to aspect 4, wherein at least one of the short message indicator of the DCI 1_0 or at least one bit of the short message of the DCI 1_0 is the indicator that the target SI update indicates is associated with one or more subsets of the wireless devices.

[0223] Aspect 6 is a method according to Aspect 5, wherein the reserved bits of the short message of the DCI 1_0 include a bitmap indicating one or more subsets of the wireless devices associated with the target SI update indication, and the presence of the bitmap in the reserved bits of the short message of the DCI1_0 is the indicator that the target SI update indication is associated with one or more subsets of the wireless devices.

[0224] Aspect 7 is a method according to any one of Aspects 5 and 6, wherein the short message indicator of the DCI 1_0 is the indicator that the target SI update indication is associated with one or more subsets of the wireless devices, and wherein the short message of the DCI 1_0 includes a bitmap indicating one or more subsets of the wireless devices associated with the target SI update indication.

[0225] Aspect 8 is a method according to any one of Aspects 4 to 7, wherein the P-RNTI is a P2_RNTI associated with one or more subsets of the wireless devices, and the P2-RNTI is the indicator that the target SI update indication is associated with one or more subsets of the wireless devices, and wherein the short message of the DCI1_0 scrambled with the P2-RNTI includes a bitmap indicating one or more subsets of the wireless devices associated with the target SI update indication.

[0226] Aspect 9 is a method according to any one of Aspects 4 to 8, wherein at least one reserved bit of the DCI 1_0 is the indicator that the target SI update indication is associated with one or more subsets of the wireless devices, and wherein the at least one processor is further configured to output identification of one or more subsets of the wireless devices associated with the target SI update indication for transmission.

[0227] Aspect 10 is a method according to Aspect 9, wherein the identifiers of one or more subsets of the wireless devices associated with the target SI update indication are output for transmission in at least one of the following: a second DCI 1_0 scrambled with a P2_RNTI associated with one or more subsets of the wireless devices, the short message of the second DCI 1_0 including a bitmap indicating one or more subsets of the wireless devices associated with the target SI update indication; or a downlink payload associated with the downlink grant of the SI in the target SI update indication, the downlink payload including the bitmap indicating one or more subsets of the wireless devices associated with the target SI update indication.

[0228] Aspect 11 is a method according to any one of Aspects 1 to 10, the method also comprising outputting a configuration or reconfiguration of the association between the target SI update indication and one or more subsets of the wireless devices for sending, wherein the target SI update indication is output based on the configuration or reconfiguration of the association between the target SI update indication and one or more subsets of the wireless devices for sending to one or more subsets of the wireless devices.

[0229] Aspect 12 is a method according to any one of Aspects 1 to 11, the method also including outputting a notification for sending that the network node supports the target SI update indication for one or more subsets of the wireless devices; or obtaining the ability of the one or more subsets of wireless devices to support the target SI update indication of the downlink grant including the at least one SI update associated with the one or more subsets of wireless devices, wherein the target SI update indication is output for sending to the one or more subsets of the wireless devices based on the notification that the network node supports the target SI update indication for one or more subsets of the wireless devices or the obtained ability of the one or more subsets of the wireless devices.

[0230] Aspect 13 is a method according to any one of Aspects 1 to 12, the method also including commanding the behavior of one or more subsets of the wireless devices to (A) monitor DCI 1_0 encrypted with a common P-RNTI and DCI 1_0 encrypted with a P2-RNTI, the common P-RNTI being associated with the set of wireless devices, or (B) monitor DCI 1_0 encrypted with the P2-RNTI.

[0231] Aspect 14 is a method according to Aspect 13, the method also including outputting a notification for sending that the network node supports commanding the behavior of one or more subsets of the wireless devices, or obtaining the ability of one or more subsets of the wireless devices to support the behavior of one or more subsets of the wireless devices, wherein the behavior of the one or more subsets of the wireless devices is commanded based on the obtained capabilities of the one or more subsets of the wireless devices.

[0232] Aspect 15 is a method according to any one of aspects 1 to 14, wherein the target SI update indication for one or more subsets of the wireless devices is output for transmission in a PDSCH or a dedicated group-common PDCCH.

[0233] Aspect 16 is an apparatus for wireless communication, the apparatus comprising at least one processor coupled to a memory and configured to implement any one of aspects 1 to 15, the apparatus further comprising a transceiver coupled to the at least one processor.

[0234] Aspect 17 is an apparatus for wireless communication, the apparatus comprising means for implementing any one of aspects 1 to 15.

[0235] Aspect 18 is a non-transitory computer readable medium storing computer executable code, wherein the code, when executed by a processor, causes the processor to implement any one of aspects 1 to 15.

[0236] Aspect 19 is a method for performing wireless communications at a wireless device, the method comprising: receiving a target SI update indication for one or more subsets of wireless devices including the wireless device from a network node, the target SI update indication comprising a downlink grant of at least one SI update associated with one or more subsets of the wireless devices in a set of wireless devices; and receiving the at least one SI update from the network node based on the downlink grant of the at least one SI update associated with the one or more subsets of the wireless devices including the wireless device.

[0237] Aspect 20 is a method according to aspect 19, wherein the target SI update indication includes an indicator that the target SI update indication is associated with one or more subsets of the wireless devices including the wireless device, and wherein the target SI update indication is received in DCI 1_0 scrambled with P-RNTI.

[0238] Aspect 21 is a method according to aspect 20, wherein at least one of the short message indicator of the DCI 1_0 or at least one bit of the short message of the DCI1_0 is the indicator that the target SI update indicates is associated with one or more subsets of the wireless devices including the wireless device.

[0239] Aspect 22 is a method according to Aspect 21, wherein the reserved bits of the short message of the DCI 1_0 include a bitmap indicating one or more subsets of the wireless devices associated with the target SI update indication, and the presence of the bitmap in the reserved bits of the short message of the DCI 1_0 is the indicator that the target SI update indication is associated with one or more subsets of the wireless devices including the wireless devices.

[0240] Aspect 23 is a method according to any one of Aspects 21 and 22, wherein the short message indicator of the DCI 1_0 is the indicator that the target SI update indication is associated with one or more subsets of the wireless devices including the wireless device, and wherein the short message of the DCI 1_0 includes a bitmap indicating one or more subsets of the wireless devices associated with the target SI update indication.

[0241] Aspect 24 is a method according to any one of Aspects 21 to 23, wherein the P-RNTI is a P2_RNTI associated with one or more subsets of the wireless devices including the wireless device, and the P2-RNTI is the indicator that the target SI update indication is associated with one or more subsets of the wireless devices including the wireless device, and wherein the short message of the DCI 1_0 scrambled with the P2-RNTI includes a bitmap indicating one or more subsets of the wireless devices associated with the target SI update indication.

[0242] Aspect 25 is a method according to any one of Aspects 21 to 24, wherein at least one reserved bit of the DCI 1_0 is the indicator that the target SI update indication is associated with one or more subsets of the wireless devices including the wireless device, and wherein the at least one processor is further configured to receive identification of one or more subsets of the wireless devices associated with the target SI update indication.

[0243] Aspect 26 is a method according to Aspect 25, wherein the identification of one or more subsets of the wireless devices associated with the target SI update indication is received in at least one of the following items: a second DCI 1_0 scrambled using a P2_RNTI associated with one or more subsets of the wireless devices including the wireless devices, the short message of the second DCI 1_0 including a bitmap indicating one or more subsets of the wireless devices associated with the target SI update indication; or a downlink payload associated with the downlink grant of the SI in the target SI update indication, the downlink payload including the bitmap indicating one or more subsets of the wireless devices associated with the target SI update indication.

[0244] Aspect 27 is a method according to any one of Aspects 19 to 26, the method further comprising: receiving a configuration or a reconfiguration of an association between the target SI update indication and one or more subsets of the wireless devices including the wireless device, wherein the target SI update indication is received from the network node based on the configuration or the reconfiguration of the association between the target SI update indication and one or more subsets of the wireless devices including the wireless device.

[0245] Aspect 28 is a method according to any one of Aspects 19 to 27, the method further comprising: receiving a notification from the network node that the network node supports the target SI update indication for one or more subsets of the wireless devices; or sending a capability of the one or more subsets of the wireless devices to support the target SI update indication of a downlink grant including the at least one SI update associated with the one or more subsets of the wireless devices, wherein the target SI update indication is received from the network node based on the notification that the network node supports the target SI update indication for one or more subsets of the wireless devices or the capability of the wireless device sent to the network node.

[0246] Aspect 29 is a method according to any one of Aspects 19 to 28, the method also including receiving instructions for the behavior of a wireless device to (A) monitor DCI 1_0 encrypted using a common P-RNTI and DCI 1_0 encrypted using a P2-RNTI, wherein the common P-RNTI is associated with the set of wireless devices, or (B) monitor DCI 1_0 encrypted using the P2-RNTI.

[0247] Aspect 30 is a method according to Aspect 29, the method further comprising: receiving a notification that the network node supports commanding the behavior of the wireless device; or sending the capability of the wireless device to support the behavior of the wireless device, wherein the behavior of the wireless device is commanded based on the capability of the wireless device.

[0248] Aspect 31 is a method according to any one of aspects 19 to 30, wherein the target SI update indication for one or more subsets of the wireless devices is received in a PDSCH or a dedicated group common PDCCH.

[0249] Aspect 32 is an apparatus for wireless communication, the apparatus comprising at least one processor coupled to a memory and configured to implement any one of aspects 19 to 31, the apparatus further comprising a transceiver coupled to the at least one processor.

[0250] Aspect 33 is an apparatus for wireless communication, the apparatus comprising means for implementing any one of aspects 19 to 31.

[0251] Aspect 34 is a non-transitory computer readable medium storing computer executable code, wherein the code, when executed by a processor, causes the processor to implement any one of aspects 19 to 31.

Claims

1. An apparatus for wireless communication at a network node, the apparatus comprising: Memory; and at least one processor coupled to the memory and configured to: obtaining, from the network node, at least one system information (SI) update associated with one or more subsets of wireless devices from a set of wireless devices associated with the network node or with a subset of directions; as well as Outputting a target SI update indication for one or more subsets of the wireless devices among the set of wireless devices associated with the network node or for the directional subset for transmission, the target SI update indication comprising a downlink grant of the at least one SI update associated with the one or more subsets of the wireless devices or the directional subset.

2. The apparatus of claim 1 , further comprising a transceiver coupled to the at least one processor, and wherein the at least one processor is further configured to output for transmission the at least one SI update for one or more subsets of the wireless devices based on the downlink grant of the at least one SI update associated with the one or more subsets of the wireless devices, Wherein the subset of wireless devices includes at least one of user equipment or a subset Integrated Access Backhaul (IAB) node.

3. The apparatus according to claim 1, wherein the target SI update indication is for the direction subset and is output for transmission in the direction subset.

4. The apparatus of claim 1 , wherein the targeted SI update indication comprises an indicator that the targeted SI update indication is associated with one or more subsets of the wireless devices, Wherein the targeted SI update indication is output for transmission in a downlink control information (DCI) format 1_0 (DCI 1_0) scrambled with a paging radio network temporary identifier (P-RNTI).

5. The apparatus of claim 4, wherein at least one of the short message indicator of the DCI 1_0 or at least one bit of the short message of the DCI 1_0 is the indicator that the target SI update indicates is associated with one or more subsets of the wireless devices.

6. The apparatus of claim 5 , wherein the reserved bits of the short message of the DCI 1_0 include a bitmap indicating one or more subsets of the wireless devices associated with the target SI update indication, and the presence of the bitmap in the reserved bits of the short message of the DCI 1_0 is the indicator that the target SI update indication is associated with one or more subsets of the wireless devices.

7. The apparatus of claim 5 , wherein the short message indicator of the DCI 1_0 is the indicator that the target SI update indication is associated with one or more subsets of the wireless devices, wherein the short message of the DCI 1_0 comprises a bitmap indicating one or more subsets of the wireless devices associated with the target SI update indication.

8. The apparatus of claim 4, wherein the P-RNTI is a dedicated P-RNTI (P2-RNTI) associated with one or more subsets of the wireless devices, and the P2-RNTI is the indicator that the target SI update indication is associated with one or more subsets of the wireless devices, The short message of the DCI 1_0 scrambled with the P2-RNTI includes a bitmap indicating one or more subsets of the wireless devices associated with the target SI update indication.

9. The apparatus of claim 4, wherein at least one reserved bit of the DCI 1_0 is the indicator that the target SI update indication is associated with one or more subsets of the wireless devices, wherein the at least one processor is further configured to output identifications of the one or more subsets of the wireless devices associated with the target SI update indication for transmission.

10. An apparatus according to claim 9, wherein the identifiers of one or more subsets of the wireless devices associated with the target SI update indication are output for transmission in at least one of the following: a second DCI 1_0 scrambled with a dedicated P-RNTI (P2-RNTI) associated with one or more subsets of the wireless devices, the short message of the second DCI 1_0 including a bitmap indicating one or more subsets of the wireless devices associated with the target SI update indication; or a downlink payload associated with the downlink grant of the SI in the target SI update indication, the downlink payload including the bitmap indicating one or more subsets of the wireless devices associated with the target SI update indication.

11. The apparatus of claim 1 , wherein the at least one processor is further configured to: Outputting a configuration or a reconfiguration of an association between the target SI update indication and one or more subsets of the wireless devices for transmission, wherein the target SI update indication is output based on the configuration or the reconfiguration of the association between the target SI update indication and one or more subsets of the wireless devices for transmission to the one or more subsets of the wireless devices.

12. The apparatus of claim 1, wherein the at least one processor is further configured to: outputting for transmission a notification that the network node supports the targeted SI update indication for one or more subsets of the wireless devices, or obtaining a capability of the one or more subsets of wireless devices to support the targeted SI update indication of a downlink grant including the at least one SI update associated with the one or more subsets of wireless devices, The target SI update indication is output based on the notification that the network node supports the target SI update indication for one or more subsets of the wireless devices or the obtained capabilities of the one or more subsets of the wireless devices for sending to the one or more subsets of the wireless devices.

13. The apparatus of claim 1 , wherein the at least one processor is further configured to: Commanding behavior of one or more subsets of the wireless devices to (A) monitor downlink control information (DCI) format 1_0 (DCI 1_0) scrambled with a common paging radio network temporary identifier (P-RNTI) and DCI 1_0 scrambled with a dedicated P-RNTI (P2-RNTI), the common P-RNTI being associated with the set of wireless devices, or (B) monitor downlink control information (DCI) format 1_0 (DCI 1_0) scrambled with the P2-RNTI.

14. The apparatus of claim 13, wherein the at least one processor is further configured to: outputting for transmission a notification that the network node supports commanding behavior for one or more subsets of the wireless devices, or obtaining capabilities of one or more subsets of the wireless devices to support behaviors of one or more subsets of the wireless devices, Wherein the behavior of the one or more subsets of wireless devices is commanded based on the obtained capabilities of the one or more subsets of wireless devices.

15. The apparatus of claim 1, wherein the target SI update indication for one or more subsets of the wireless devices is output for transmission in a physical downlink shared channel (PDSCH) or a dedicated group common physical downlink control channel (PDCCH).

16. An apparatus for wireless communication at a wireless device, the apparatus comprising: Memory; and at least one processor coupled to the memory and configured to: receiving, from a network node, a targeted system information (SI) update indication for one or more subsets of wireless devices including the wireless device, the targeted SI update indication comprising a downlink grant of at least one SI update associated with the one or more subsets of the wireless devices in a set of wireless devices; as well as The at least one SI update is received from the network node based on the downlink grant of the at least one SI update associated with one or more subsets of the wireless devices including the wireless device.

17. The apparatus of claim 16, further comprising a transceiver coupled to the at least one processor, The target SI update indication comprises an indicator that the target SI update indication is associated with one or more subsets of the wireless devices including the wireless device, wherein the target SI update indication is received in a downlink control information (DCI) format 1_0 (DCI 1_0) scrambled with a paging radio network temporary identifier (P-RNTI).

18. The apparatus of claim 17, wherein at least one of the short message indicator of the DCI 1_0 or at least one bit of the short message of the DCI 1_0 is the indicator that the target SI update indicates is associated with one or more subsets of the wireless devices including the wireless device.

19. The apparatus of claim 18, wherein the reserved bits of the short message of the DCI 1_0 include a bitmap indicating one or more subsets of the wireless devices associated with the target SI update indication, and the presence of the bitmap in the reserved bits of the short message of the DCI 1_0 is the indicator that the target SI update indication is associated with one or more subsets of the wireless devices including the wireless device.

20. The apparatus of claim 18, wherein the short message indicator of the DCI 1_0 is the indicator that the target SI update indication is associated with one or more subsets of the wireless devices including the wireless device, wherein the short message of the DCI 1_0 includes a bitmap indicating one or more subsets of the wireless devices associated with the target SI update indication.

21. The apparatus of claim 18, wherein the P-RNTI is a dedicated P-RNTI (P2-RNTI) associated with one or more subsets of the wireless devices including the wireless device, and the P2-RNTI is the indicator that the target SI update indication is associated with one or more subsets of the wireless devices including the wireless device, The short message of the DCI 1_0 scrambled with the P2-RNTI includes a bitmap indicating one or more subsets of the wireless devices associated with the target SI update indication.

22. The apparatus of claim 18, wherein at least one reserved bit of the DCI 1_0 is the indicator that the target SI update indication is associated with one or more subsets of the wireless devices including the wireless device, wherein the at least one processor is further configured to receive identification of one or more subsets of the wireless devices associated with the target SI update indication.

23. An apparatus according to claim 22, wherein the identification of one or more subsets of the wireless devices associated with the target SI update indication is received in at least one of the following: a second DCI 1_0 scrambled using a dedicated P-RNTI (P2-RNTI) associated with one or more subsets of the wireless devices including the wireless device, the short message of the second DCI 1_0 including a bitmap indicating one or more subsets of the wireless devices associated with the target SI update indication; or a downlink payload associated with the downlink grant of the SI in the target SI update indication, the downlink payload including the bitmap indicating one or more subsets of the wireless devices associated with the target SI update indication.

24. The apparatus of claim 16, wherein the at least one processor is further configured to: receiving a configuration or a reconfiguration of an association between the target SI update indication and one or more subsets of the wireless devices including the wireless device, wherein the target SI update indication is received from the network node based on the configuration or the reconfiguration of the association between the target SI update indication and one or more subsets of the wireless devices including the wireless device.

25. The apparatus of claim 16, wherein the at least one processor is further configured to: receiving a notification from the network node that the network node supports the targeted SI update indication for one or more subsets of the wireless devices, or sending a capability of the one or more subsets of wireless devices to support the targeted SI update indication of a downlink grant including the at least one SI update associated with the one or more subsets of wireless devices, Wherein the targeted SI update indication is received from the network node based on the capability of the wireless device that the network node supports the targeted SI update indication for one or more subsets of the wireless devices or is sent to the network node.

26. The apparatus of claim 16, wherein the at least one processor is further configured to: Receive instructions for the behavior of a wireless device to (A) monitor downlink control information (DCI) format 1_0 (DCI 1_0) scrambled with a common paging radio network temporary identifier (P-RNTI) and DCI 1_0 scrambled with a dedicated P-RNTI (P2-RNTI), wherein the common P-RNTI is associated with a set of wireless devices, or (B) monitor downlink control information (DCI) format 1_0 (DCI 1_0) scrambled with the P2-RNTI.

27. The apparatus of claim 26, wherein the at least one processor is further configured to: receiving a notification that the network node supports the behavior commanded by the wireless device, or sending a capability of the wireless device to support the behavior of the wireless device, Wherein the behavior of the wireless device is commanded based on the capabilities of the wireless device.

28. The apparatus of claim 16, wherein the target SI update indication for one or more subsets of the wireless devices is received in a physical downlink shared channel (PDSCH) or a dedicated group common physical downlink control channel (PDCCH).

29. A method for wireless communication at a network node, the method comprising: obtaining, from the network node, at least one system information (SI) update associated with one or more subsets of wireless devices from a set of wireless devices associated with the network node or with a subset of directions; as well as Outputting a target SI update indication for one or more subsets of the wireless devices among the set of wireless devices associated with the network node or for the directional subset for transmission, the target SI update indication comprising a downlink grant of the at least one SI update associated with the one or more subsets of the wireless devices or the directional subset.

30. A method for wireless communication at a network device, the method comprising: receiving, from a network node, a targeted system information (SI) update indication for one or more subsets of wireless devices including wireless devices, the targeted SI update indication comprising a downlink grant of at least one SI update associated with the one or more subsets of wireless devices in a set of wireless devices; as well as The at least one SI update is received from the network node based on the downlink grant of the at least one SI update associated with one or more subsets of the wireless devices including the wireless device.

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