On-demand synchronization signal block or system information block procedure

Abstract

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) can receive a reference signal (RS) transmitted by a neighboring cell of the UE. The UE can transmit a RS measurement report based at least in part on a measurement of the RS received from the neighboring cell. The UE can receive, after transmitting the RS measurement report, an indication associated with the neighboring cell, where the indication indicates that the neighboring cell is to act as a secondary cell of the UE or that the neighboring cell is to act as a primary cell of the UE. The UE can receive, after receiving the indication, at least one of a synchronization signal block (SSB) associated with the neighboring cell or a system information block (SIB) associated with the neighboring cell. Numerous other aspects are described.

Description

Cross-references to related applications

[0001] This patent application claims priority to U.S. Nonprovisional Patent Application No. 18 / 506,833, filed November 10, 2023, entitled “On-DEMAND SYNCHRONIZATIONSIGNAL BLOCK OR SYSTEM INFORMATION BLOCK PROCEDURE,” which is assigned to the assignee of this application. The disclosure of the earlier application is considered part of this patent application and is incorporated herein by reference. Technical Field

[0002] All aspects of this disclosure relate to wireless communication in general, and specifically to techniques, apparatus and methods for the process of synchronizing signal blocks (SSBs) or system information blocks (SIBs) on demand. Background Technology

[0003] Wireless communication systems are widely deployed to provide a variety of services, including voice, text, messaging, video, data, and / or other services. Services may include unicast, multicast, and / or broadcast services, etc. Typical wireless communication systems employ multiple access radio access technologies (RATs) capable of supporting communication with multiple users by sharing available system resources (e.g., time-domain resources, frequency-domain resources, spatial-domain resources, and / or device transmit power, etc.). Examples of such multiple access RATs 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.

[0004] The aforementioned Multiple Access RATs have been adopted in various telecommunications standards to provide a common protocol enabling different wireless communication devices to communicate at the city, national, regional, or global level. An example telecommunications standard is New Radio (NR). NR (also known as 5G) is part of the continuous evolution of mobile broadband announced by the 3rd Generation Partnership Project (3GPP). NR (and other mobile broadband evolutions beyond NR) can be designed to better support the Internet of Things (IoT) and reduced-capacity device deployments, industrial connectivity, millimeter-wave (mmWave) expansion, licensed and unlicensed spectrum access, non-terrestrial network (NTN) deployments, sidelinks and other device-to-device direct communication technologies (e.g., cellular vehicle-to-everything (CV2X) communications), massive MIMO, decomposed network architectures and network topology expansion, multi-subscriber implementations, high-precision positioning and / or radio frequency (RF) sensing, and more. As the demand for mobile broadband access continues to grow, further improvements to NR can be implemented, and other radio access technologies (such as 6G) can be introduced to further advance mobile broadband evolution. Summary of the Invention

[0005] Some aspects described herein relate to a method of wireless communication performed by a user equipment (UE). The method may include: receiving a reference signal (RS) transmitted by a neighboring cell of the UE. The method may include: transmitting an RS measurement report based at least in part on measurements of the RS received from the neighboring cell. The method may include: receiving, after transmitting the RS measurement report, an indication associated with the neighboring cell, wherein the indication indicates that the neighboring cell intends to act as a secondary cell of the UE or that the neighboring cell intends to act as a primary cell of the UE. The method may include: after receiving the indication, receiving at least one of a synchronization signal block (SSB) associated with the neighboring cell or a system information block (SIB) associated with the neighboring cell.

[0006] Some aspects described herein relate to a method for wireless communication performed by a network node. The method may include: receiving an RS measurement report from a UE, the RS measurement report being associated with RS transmitted by a neighboring cell of the UE. The method may include: determining, at least in part, based on the RS measurement report, whether the neighboring cell should act as a secondary cell or a primary cell of the UE. The method may include: sending to the UE an indication that the neighboring cell should act as the secondary cell or the primary cell of the UE.

[0007] Some aspects described herein relate to a method for wireless communication performed by a network node. The method may include: transmitting an RS associated with a neighboring cell of a UE. The method may include: receiving, after transmitting the RS, an indication for transmitting at least one of an SSB associated with the neighboring cell or an SIB associated with the neighboring cell. The method may include: transmitting the at least one of the SSB or the SIB based at least in part on the indication.

[0008] Some aspects described herein relate to a UE for wireless communication. The UE may include one or more memories and one or more processors coupled to the one or more memories. The one or more processors may be configured to: receive RS transmitted by a neighboring cell of the UE. The one or more processors may be configured to: transmit an RS measurement report based at least in part on measurements of the RS received from the neighboring cell. The one or more processors may be configured to: receive, after transmitting the RS measurement report, an indication associated with the neighboring cell, wherein the indication indicates that the neighboring cell intends to act as a secondary cell of the UE or the neighboring cell intends to act as a primary cell of the UE. The one or more processors may be configured to: after receiving the indication, receive at least one of an SSB associated with the neighboring cell or an SIB associated with the neighboring cell.

[0009] Some aspects described herein relate to a network node for wireless communication. The network node may include one or more memories and one or more processors coupled to the one or more memories. The one or more processors may be configured to: receive an RS measurement report from a UE, the RS measurement report being associated with RS transmitted by a neighboring cell of the UE. The one or more processors may be configured to: determine, at least in part, based on the RS measurement report, whether the neighboring cell should act as a secondary cell or a primary cell of the UE. The one or more processors may be configured to: send to the UE an indication that the neighboring cell should act as the secondary cell or the primary cell of the UE.

[0010] Some aspects described herein relate to a network node for wireless communication. The network node may include one or more memories and one or more processors coupled to the one or more memories. The one or more processors may be configured to: transmit an RS associated with a neighboring cell of a UE. The one or more processors may be configured to: receive, after transmitting the RS, an indication for transmitting at least one of an SSB or an SIB associated with the neighboring cell. The one or more processors may be configured to: transmit the SSB or the at least one of the SSB or the SIB based at least in part on the indication.

[0011] Some aspects described herein relate to a non-transitory computer-readable medium storing a set of instructions for wireless communication by a UE. When executed by one or more processors of the UE, the set of instructions enables the UE to receive RS transmitted by a neighboring cell. When executed by one or more processors of the UE, the set of instructions enables the UE to transmit an RS measurement report at least in part based on measurements of the RS received from the neighboring cell. When executed by one or more processors of the UE, the set of instructions enables the UE to receive an indication associated with the neighboring cell after transmitting the RS measurement report, wherein the indication indicates that the neighboring cell intends to act as a secondary cell or a primary cell of the UE. When executed by one or more processors of the UE, the set of instructions enables the UE to receive at least one of an SSB or an SIB associated with the neighboring cell after receiving the indication.

[0012] Some aspects described herein relate to a non-transitory computer-readable medium storing a set of instructions for wireless communication by a network node. When executed by one or more processors of the network node, the set of instructions enables the network node to receive an RS measurement report from a UE, the RS measurement report being associated with RS transmitted by neighboring cells of the UE. When executed by one or more processors of the network node, the set of instructions enables the network node to determine, at least in part, based on the RS measurement report, whether the neighboring cell should act as a secondary cell or a primary cell of the UE. When executed by one or more processors of the network node, the set of instructions enables the network node to send an instruction to the UE indicating whether the neighboring cell should act as the secondary cell or the primary cell of the UE.

[0013] Some aspects described herein relate to a non-transitory computer-readable medium storing a set of instructions for wireless communication by a network node. When executed by one or more processors of the network node, the set of instructions can cause the network node to transmit an RS associated with a neighboring cell of a UE. When executed by one or more processors of the network node, the set of instructions can cause the network node to receive, after transmitting the RS, an instruction for transmitting at least one of an SSB associated with the neighboring cell or an SIB associated with the neighboring cell. When executed by one or more processors of the network node, the set of instructions can cause the network node to transmit the at least one of the SSB or the SIB, at least in part, based on the instruction.

[0014] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include: components for receiving RS transmitted by a neighboring cell of the apparatus. The apparatus may include: components for transmitting an RS measurement report based at least in part on measurements of the RS received from the neighboring cell. The apparatus may include: components for receiving, after transmitting the RS measurement report, an indication associated with the neighboring cell, wherein the indication indicates that the neighboring cell intends to act as a secondary cell of the apparatus or that the neighboring cell intends to act as a primary cell of the apparatus. The apparatus may include: components for receiving, after receiving the indication, at least one of an SSB associated with the neighboring cell or an SIB associated with the neighboring cell.

[0015] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include: components for receiving an RS measurement report from a UE, the RS measurement report being associated with RS transmitted by a neighboring cell of the UE. The apparatus may include: components for determining, at least in part, based on the RS measurement report, whether the neighboring cell should act as a secondary cell or a primary cell of the UE. The apparatus may include: components for transmitting to the UE an indication that the neighboring cell should act as the secondary cell or the primary cell of the UE.

[0016] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include: components for transmitting an RS associated with a neighboring cell of a UE. The apparatus may include: components for receiving, after transmitting the RS, an indication for transmitting at least one of an SSB associated with the neighboring cell or an SIB associated with the neighboring cell. The apparatus may include: components for transmitting the SSB or the at least one of the SIBs based at least in part on the indication.

[0017] All aspects of this disclosure may be implemented or be implemented as described in whole by or embodied in the methods, apparatus, systems, computer program products, non-transitory computer-readable media, user equipment, base stations, network nodes, network entities, wireless communication devices and / or processing systems as fully described in the specification and drawings and illustrated in the specification and drawings.

[0018] The preceding paragraphs of this section have broadly summarized some aspects of this disclosure. These and additional aspects and their associated advantages will be described below. The disclosed aspects can serve as the basis for modifying or designing other aspects for performing the same or similar purposes of this disclosure. Such equivalent aspects do not depart from the scope of the appended claims. The characteristics of the aspects disclosed herein, their organization and operation, and their associated advantages will be better understood from the following description taken in conjunction with the accompanying drawings. Attached Figure Description

[0019] The accompanying drawings illustrate some aspects of this disclosure but do not limit its scope, as other aspects can be achieved by this description. Each drawing in the drawings is provided for illustrative and descriptive purposes and not as a definition of limitation of the claims. Identical or similar reference numerals in different drawings may identify identical or similar elements.

[0020] Figure 1 This is a diagram illustrating an example of a wireless communication network according to the present disclosure.

[0021] Figure 2 This is an illustration of an example network node communicating with an example user equipment (UE) in a wireless network according to the present disclosure.

[0022] Figure 3 This is a diagram illustrating an example decomposed base station architecture according to this disclosure.

[0023] Figures 4A to 4B These are illustrations of examples of procedures associated with the On-Demand Synchronization Signal Block (SSB) or System Information Block (SIB) according to this disclosure.

[0024] Figures 5A to 5B These are illustrations of examples of on-demand SSB or SIB processes according to this disclosure.

[0025] Figure 6 This is a diagram illustrating an example process performed, for example, at a UE or a device of a UE, according to this disclosure.

[0026] Figure 7 This is a diagram illustrating an example process performed, for example, at a network node or a device of a network node, according to the present disclosure.

[0027] Figure 8 This is a diagram illustrating an example process performed, for example, at a network node or a device of a network node, according to the present disclosure.

[0028] Figure 9 This is a diagram of an example device for wireless communication according to the present disclosure.

[0029] Figure 10 This is a diagram of an example device for wireless communication according to the present disclosure. Detailed Implementation

[0030] Various aspects of this disclosure are described below with reference to the accompanying drawings. However, aspects of this disclosure may be embodied in many different forms and should not be construed as limited to any specific aspect illustrated or described with reference to the drawings or otherwise presented in this disclosure. Rather, these aspects are provided so that this disclosure will be comprehensive and complete, and will fully convey the scope of this disclosure to those skilled in the art. Those skilled in the art will understand that the scope of this disclosure is intended to cover any aspect of this disclosure disclosed herein, whether implemented independently of or in combination with any other aspect of this disclosure. For example, various combinations or numbers of aspects set forth herein may be used to implement an apparatus or a method of practice. Furthermore, the scope of this disclosure is intended to cover apparatuses having structures and / or functionalities other than those available for practicing the various aspects of this disclosure set forth herein, or methods of practice using those other structures and / or functionalities. Any aspect of this disclosure disclosed herein may be embodied by one or more elements of the claims.

[0031] Various methods, operations, apparatuses, and techniques will now be presented with reference to them. These methods, operations, apparatuses, and techniques will be described in detail below and illustrated in the accompanying drawings by various boxes, modules, components, circuits, steps, processes, or algorithms (collectively, “elements”). These elements may be implemented using hardware, software, or a combination of hardware and software. Whether such elements are implemented as hardware or software depends on the specific application and the design constraints imposed on the system as a whole.

[0032] In wireless communication systems, it is desirable to reduce the power consumption of network nodes (i.e., increase energy efficiency). One technique for reducing power consumption at network nodes is to enable network nodes to transmit synchronization signal blocks (SSBs) or system information blocks (SIBs) (such as SIB1) on demand (e.g., rather than automatically on a periodic basis). Generally, at least SSBs (and in some scenarios, SIB1) need to be transmitted by the cell to support initial access by the UE and measurements performed by the UE, etc. Therefore, one way to reduce network power consumption is to reduce the transmission of such reference signals, such that SSBs and SIB1 are transmitted based on the needs of UEs operating in connected mode (e.g., UEs in Radio Resource Control (RRC) connected state).

[0033] In operation, connected mode UEs can be configured with carrier aggregation (CA). There are two types of CA: in-band CA and inter-band CA. Compared to regular in-band CA, SSB and SIB1 are transmitted on the first component carrier CC1 and the second component carrier CC2. Here, a first UE can have the first component carrier CC1 configured as the primary cell (Pcell) and the second component carrier CC2 configured as the secondary cell (Scell). Similarly, a second UE can have the first component carrier CC1 configured as the Scell ​​and the second component carrier CC2 configured as the Pcell. Some systems can support SSB-less carrier operation for in-band CA, meaning that SSB and SIB1 are not transmitted on one of the component carriers (e.g., the second component carrier CC2). Here, the UE will have the first component carrier CC1 configured as the Pcell (i.e., the component carrier on which SSB and SIB1 are transmitted), while the second component carrier CC2 (i.e., the component carrier on which SSB and SIB1 are not transmitted) will be configured as the Scell. This reduces the power consumption of network nodes. However, this conventional SSB-less carrier operation is not feasible in the case of inter-band CA.

[0034] Conventionally, relative to inter-band CA, SSB and SIB1 are transmitted on both the first component carrier CC1 and the second component carrier CC2. To reduce power consumption, it is desirable to support operation similar to that without an SSB carrier in intra-band CA. However, conventional SSB-less carrier operation is limited to specific scenarios: communication in frequency range 1 (FR1), in co-located cells (e.g., cells with completely overlapping coverage), and in adjacent frequency bands (e.g., if the bands are separate, channel measurements in one band do not represent channel measurements in another). In all other scenarios, SSB / SIB1 transmission is required.

[0035] A strategy is needed for transmitting SSB and SIB1 on demand to support the operation of a connected mode UE in the case of inter-band CA in a component carrier without SSB (e.g., where SSB or SIB1 is not automatically transmitted (e.g., on a periodic basis)). In practice, in this scenario, there are three possibilities for the transmission of SSB and SIB1: (1) if the cell is empty, then (low-power) signals such as reference signals (RS) that are only used to implement cell search and radio resource management (RRM) measurements need to be transmitted in the component carrier; (2) if the component carrier acts as the UE's Scell, then SSB (in addition to RS) needs to be transmitted in the component carrier when needed; and (3) if the component carrier is to be configured as a Pcell (e.g., to support handover (HO)), then SIB1 (in addition to SSB and RS) needs to be transmitted in the component carrier when needed.

[0036] Various aspects as a whole involve on-demand SSB or SIB procedures. Some aspects more specifically involve on-demand transmission of SSBs and SIB1 to support the operation of a connected UE in the case of inter-band CA in a carrier without SSBs. More specifically, some aspects involve causing neighboring cells associated with a network node to transmit SSBs or SIBs (e.g., causing SSBs or SIBs to be transmitted on demand) based at least in part on an instruction received from, for example, the UE or another network node. In some aspects, the UE may receive RSs transmitted by the UE's neighboring cells and may transmit an RS measurement report based at least in part on the measurement of the RS. The UE may then receive an instruction associated with the neighboring cell after transmitting the RS measurement report. Here, the instruction may indicate that the neighboring cell is to act as the UE's Scell ​​or the neighboring cell is to act as the UE's Pcell. In some aspects, the UE may receive an SSB or SIB (e.g., SIB1) associated with the neighboring cell after receiving the instruction. In some aspects, the UE may transmit an uplink wake-up signal for reception by the neighboring cell, and the uplink wake-up signal may cause the neighboring cell to transmit SSBs or SIBs. Alternatively, a network node (e.g., a network node supporting the UE's Pcell) can transmit an activation signal for reception by neighboring cells, and the activation signal can cause neighboring cells to transmit an SSB or SIB for reception by the UE. In this way, on-demand transmission of SSBs and SIBs is provided to support the operation of a connected UE in the absence of an SSB carrier under inter-band CA conditions.

[0037] Specific aspects of the subject matter described in this disclosure can be implemented to achieve one or more of the following potential advantages. In some examples, the techniques and apparatus can achieve reduced power consumption of network nodes. For example, the techniques and apparatus described herein can enable on-demand SSB and SIB transmission for connected-mode UEs in the case of inter-band CA. Therefore, the amount of SSB and SIB transmission is reduced, which means reduced power consumption of network nodes, even in scenarios where connected-mode UEs are configured for inter-band CA. Additional details are provided below.

[0038] Multiple access radio access technology (RAT) has been adopted in various telecommunications standards to provide a common protocol that enables wireless communication devices to communicate at the city, enterprise, national, regional, or global level. For example, 5G New Radio (NR) is part of the continuous mobile broadband evolution announced by the 3rd Generation Partnership Project (3GPP). 5G NR supports a variety of technologies and use cases, including enhanced mobile broadband (eMBB), ultra-reliable low-latency communication (URLLC), massive machine-type communication (mMTC), millimeter wave (mmWave) technology, beamforming, network slicing, edge computing, Internet of Things (IoT) connectivity and management, and network function virtualization (NFV).

[0039] With increasing demand for broadband access and the evolution of technologies supported by wireless communication networks, further technological improvements can be adopted in or implemented for 5G NR or future RATs (such as 6G) to further advance the evolution of wireless communication for a variety of existing and new use cases and applications. These technological improvements can be associated with new frequency band extensions, licensed and unlicensed spectrum access, overlapping spectrum use, small cell deployments, non-terrestrial network (NTN) deployments, decomposed network architectures and network topology extensions, device aggregation, advanced duplex communication, sidelinks and other device-to-device direct communication, IoT (including passive or ambient IoT) networks, reduced-capacity (RedCap) UE functionality, industrial connectivity, multi-subscriber implementations, high-precision positioning, radio frequency (RF) sensing and / or artificial intelligence or machine learning (AI / ML), and more. Such technological improvements can support use cases such as wireless backhaul, wireless data centers, extended reality (XR) and metaverse applications, meta-services for supporting vehicle connectivity, holographic and mixed reality communications, autonomous and collaborative robots, vehicle platooning and collaborative manipulation, sensor networks, posture monitoring, brain-computer interfaces, digital twin applications, asset management, and general coverage applications using off-ground and / or aerial platforms, etc. The methods, operations, apparatuses, and techniques described herein can implement one or more of the foregoing technologies and / or support one or more of the foregoing use cases.

[0040] Figure 1This is a diagram illustrating an example of a wireless communication network 100 according to the present disclosure. The wireless communication network 100 may be a 5G (or NR) network or a 6G network, or may include elements of a 5G (or NR) network or a 6G network, etc. The wireless communication network 100 may include a plurality of network nodes 110, shown as network node (NN) 110a, network node 110b, network node 110c, and network node 110d. Network nodes 110 may support communication with a plurality of UEs 120 (shown as UE 120a, UE 120b, UE 120c, UE 120d, and UE 120e).

[0041] Network nodes 110 and UEs 120 of wireless communication network 100 can communicate using the electromagnetic spectrum, which can be subdivided into various categories, frequency bands, carriers, and / or channels according to frequency or wavelength. For example, devices of wireless communication network 100 can communicate using one or more operating frequency bands. In some aspects, multiple wireless networks 100 can be deployed in a given geographical area. Each wireless communication network 100 can support a specific radio access technology (RAT) (which may also be referred to as an air interface) and can operate on one or more carrier frequencies in one or more frequency ranges. Examples of RATs include 4G RAT, 5G / NR RAT, and / or 6G RAT, etc. In some examples, when multiple RATs are deployed in a given geographical area, each RAT in that geographical area can operate on a different frequency to avoid interference with each other.

[0042] Various operating frequency bands have been defined as frequency ranges designated FR1 (410 MHz to 7.125 GHz), FR2 (24.25 GHz to 52.6 GHz), FR3 (7.125 GHz to 24.25 GHz), FR4a or FR4-1 (52.6 GHz to 71 GHz), FR4 (52.6 GHz to 114.25 GHz), and FR5 (114.25 GHz to 300 GHz). Although a portion of FR1 is greater than 6 GHz, in some documents and articles, FR1 is often (interchangeably) referred to as the “sub-6 GHz” band. Similarly, in some documents and articles, FR2 is often (interchangeably) referred to as the “millimeter wave” band, but this is different from the Very High Frequency (EHF) band (30 GHz to 300 GHz) identified as the “millimeter wave” band by the International Telecommunication Union (ITU). The frequencies between FR1 and FR2 are often referred to as the mid-band frequencies, including FR3. Frequency bands falling within FR3 can inherit FR1 or FR2 characteristics, thereby effectively extending the characteristics of FR1 or FR2 into mid-band frequencies. Therefore, "below 6 GHz" (if used herein) can broadly refer to frequencies less than 6 GHz, within FR1, and / or included in mid-band frequencies. Similarly, the term "millimeter wave" (if used herein) can broadly refer to frequencies included in mid-band frequencies, within FR2, FR4, FR4-a, FR4-1, or FR5, and / or within the EHF band. Higher frequency bands can extend 5G NR operation, 6G operation, and / or other RATs above 52.6 GHz. For example, each of FR4a, FR4-1, FR4, and FR5 falls within the EHF band. In some examples, the wireless communication network 100 can implement dynamic spectrum sharing (DSS), where multiple RATs (e.g., 4G / LTE and 5G / NR) are implemented within a single frequency band using dynamic bandwidth allocation (e.g., based on user demand). It is conceivable that the frequencies included in these operating frequency bands (e.g., FR1, FR2, FR3, FR4, FR4-a, FR4-1 and / or FR5) can be modified, and the techniques described herein are applicable to those modified frequency ranges.

[0043] Network node 110 may include one or more devices, components, or systems that enable communication between UE 120 and one or more devices, components, or systems of wireless communication network 100. Network node 110 may be, may include, or may also be referred to as an NR network node, 5G network node, 6G network node, node B, eNB, gNB, access point (AP), transmit / receive point (TRP), mobility element, core, network entity, network element, network equipment, and / or another type of device, component, or system included in a radio access network (RAN).

[0044] Network node 110 may be implemented as a single physical node (e.g., a single physical structure) or as two or more physical nodes (e.g., two or more different physical structures). For example, network node 110 may be a device or system implementing a portion of a radio protocol stack, a device or system implementing a complete radio protocol stack (such as a complete gNB protocol stack), or a collection of devices or systems collectively implementing a complete radio protocol stack. For example, and as shown, network node 110 may be an aggregated network node (with an aggregated architecture), meaning that network node 110 can implement a complete radio protocol stack physically and logically integrated within a single node (e.g., a single physical structure) in the wireless communication network 100. For example, aggregated network node 110 may consist of a single standalone base station or a single TRP that uses the complete radio protocol stack to implement or facilitate communication between UE 120 and the core network of wireless communication network 100.

[0045] Alternatively, and also as shown in the figure, network node 110 can be a decomposed network node (sometimes referred to as a decomposed base station), meaning that network node 110 can realize a radio protocol stack that is physically distributed and / or logically distributed among two or more nodes in the same or different geographic locations. For example, a decomposed network node may have a decomposed architecture. In some deployments, decomposed network node 110 may be used in integrated access and backhaul (IAB) networks, in open radio access networks (O-RAN) (such as network configurations compliant with the O-RAN Alliance), or in virtualized radio access networks (vRAN) (also referred to as cloud radio access networks (C-RAN)) to facilitate scaling by decomposing base station functionality into multiple units that can be deployed independently.

[0046] Network nodes 110 of the wireless communication network 100 may include one or more central units (CUs), one or more distributed units (DUs), and / or one or more radio units (RUs). CUs may host one or more higher-layer control functions, such as Radio Resource Control (RRC) functions, Packet Data Convergence Protocol (PDCP) functions, and / or Service Data Adaptation Protocol (SDAP) functions, etc. DUs may host one or more of the Radio Link Control (RLC) layer, Media Access Control (MAC) layer, and / or one or more higher physical (PHY) layers, at least in part, according to functional splits (such as functional splits defined by 3GPP). In some examples, DUs may also host one or more lower PHY layer functions, such as Fast Fourier Transform (FFT), Inverse FFT (iFFT), beamforming, Physical Random Access Channel (PRACH) extraction and filtering, and / or scheduling of resources for one or more UEs 120, etc. RUs may host RF processing functions or lower PHY layer functions, such as FFT, iFFT, beamforming, or PRACH extraction and filtering, etc., according to functional splits (such as lower-layer functional splits). In this type of architecture, each RU can be operated to handle over-the-air (OTA) communications with one or more UE 120s.

[0047] In some aspects, a single network node 110 may include a combination of one or more CUs, one or more DUs, and / or one or more RUs. Additionally or alternatively, network node 110 may include one or more near real-time (near RT) RAN Intelligent Controllers (RICs) and / or one or more non-real-time (non-RT) RICs. In some examples, CUs, DUs, and / or RUs may be implemented as virtual units, such as Virtual Central Units (VCUs), Virtual Distributed Units (VDUs), or Virtual Radio Units (VRUs), etc. Virtual units may be implemented as virtual network functions, such as those associated with cloud deployments.

[0048] Some network nodes 110 (e.g., base stations, RUs, or TRPs) can provide communication coverage for specific geographic areas. In 3GPP, the term "cell" can refer to the coverage area of ​​network node 110 or to network node 110 itself, depending on the context in which the term is used. Network node 110 can support one or more (e.g., three) cells. In some examples, network node 110 can provide communication coverage for macro cells, pico cells, femto cells, or another type of cell. A macro cell can cover a relatively large geographic area (e.g., a radius of several kilometers) and can allow unrestricted access by UE 120 with a service subscription. A pico cell can cover a relatively small geographic area and can allow unrestricted access by UE 120 with a service subscription. A femto cell can cover a relatively small geographic area (e.g., a residential area) and can allow restricted access by UE 120 associated with that femto cell (e.g., UE 120 in a Closed Subscriber Group (CSG)). The network node 110 used for a macro cell may be referred to as a macro network node. Network node 110 used for a picocell may be referred to as a pico network node. Network node 110 used for a femtocell may be referred to as a femto network node or a home network node. In some examples, the cell may not necessarily be stationary. For example, the geographical area of ​​the cell may be mobile based on the location of the associated mobile network node 110 (e.g., a train, satellite base station, unmanned aerial vehicle, or non-terrestrial network (NTN) network node).

[0049] The wireless communication network 100 can be a heterogeneous network, comprising different types of network nodes 110, such as macro network nodes, piconet nodes, femtonet nodes, relay network nodes, aggregation network nodes, and / or decomposition network nodes, etc. Figure 1 In the example shown, network node 110a can be a macro network node for macro cell 130a, network node 110b can be a pico network node for pico cell 130b, and network node 110c can be a femto network node for femto cell 130c. Compared to other types of network nodes 110, the various types of network nodes 110 typically transmit at different power levels, serve different coverage areas, and / or have different effects on interference in the wireless communication network 100. For example, macro network nodes may have high transmit power levels (e.g., 5 watts to 40 watts), while pico network nodes, femto network nodes, and relay network nodes may have lower transmit power levels (e.g., 0.1 watts to 2 watts).

[0050] In some examples, network node 110 may be, may include, or operate as a RU, TRP, or base station communicating with one or more UEs 120 via a radio access link (which may be referred to as a "Uu" link). The radio access link may include a downlink and an uplink. A "downlink" (or "DL") refers to the communication direction from network node 110 to UE 120, and an "uplink" (or "UL") refers to the communication direction from UE 120 to network node 110. Downlink channels may include one or more control channels and one or more data channels. Downlink control channels may be used to transmit downlink control information (DCI) (e.g., scheduling information, reference signals, and / or configuration information) from network node 110 to UE 120. Downlink data channels may be used to transmit downlink data (e.g., user data associated with UE 120) from network node 110 to UE 120. Downlink control channels may include one or more physical downlink control channels (PDCCH), and downlink data channels may include one or more physical downlink shared channels (PDSCH). The uplink channel may similarly include one or more control channels and one or more data channels. The uplink control channel can be used to transmit uplink control information (UCI) from UE 120 to network node 110 (e.g., transmitting corresponding reference signals and / or feedback with one or more downlinks). The uplink data channel can be used to transmit uplink data (e.g., user data associated with UE 120) from UE 120 to network node 110. The uplink control channel may include one or more physical uplink control channels (PUCCH), and the uplink data channel may include one or more physical uplink shared channels (PUSCH). The downlink and uplink may each include a set of resources on which network node 110 and UE 120 can communicate.

[0051] Downlink and uplink resources may include time-domain resources (frames, subframes, time slots, and / or symbols), frequency-domain resources (bands, component carriers, subcarriers, resource blocks, and / or resource elements), and / or spatial-domain resources (specific transmission directions and / or beam parameters). Frequency-domain resources in some bands may be subdivided into bandwidth portions (BWPs). A BWP may be a contiguous block of frequency-domain resources allocated to one or more UEs 120 (e.g., a contiguous block of resource blocks). A UE 120 may be configured with both an uplink BWP and a downlink BWP (where the uplink BWP and downlink BWP may be the same BWP or different BWPs). BWPs may be dynamically configured and / or reconfigured (e.g., by sending DCI configuration to one or more UEs 120 via network node 110), meaning that BWPs may be adjusted in real-time (or near real-time) based on changing network conditions in the wireless communication network 100 and / or based on the specific requirements of one or more UEs 120. This allows for more efficient use of available frequency domain resources in the wireless communication network 100, as fewer frequency domain resources can be allocated to the BWP for UE 120 (which reduces the number of frequency domain resources that UE 120 needs to monitor), thus allowing more frequency domain resources to be distributed across multiple UE 120s. Therefore, the BWP can also assist in the implementation of such UE 120s by facilitating the configuration of smaller bandwidths for communications performed by lower-capacity UE 120s.

[0052] As described above, in some aspects, the wireless communication network 100 may be an IAB network, may include an IAB network, or may be included in an IAB network. In an IAB network, at least one network node 110 is an anchor network node communicating with a core network. The anchor network node 110 may also be referred to as an IAB donor (or "IAB donor"). The anchor network node 110 may be connected to the core network via a wired backhaul link. For example, the Ng interface of the anchor network node 110 may terminate at the core network. Additionally or alternatively, the anchor network node 110 may be connected to one or more devices in the core network that provide core access and mobility management functions (AMF). An IAB network typically also includes multiple non-anchor network nodes 110, which may also be referred to as relay network nodes or simply IAB nodes (or "IAB-nodes"). Each non-anchor network node 110 can directly communicate with the anchor network node 110 via a wireless backhaul link to access the core network, or can indirectly communicate with the anchor network node 110 via one or more other non-anchor network nodes 110 and an associated wireless backhaul link forming a backhaul path to the core network. Some anchor network nodes 110 or other non-anchor network nodes 110 can also directly communicate with one or more UEs 120 via a wireless access link carrying access services. In some examples, network resources used for wireless communication (such as time resources, frequency resources, and / or spatial resources) can be shared between the access link and the backhaul link.

[0053] In some examples, any network node 110 relaying communication may be referred to as a relay network node, a relay station, or simply a repeater. A repeater may receive communications from an upstream station (e.g., another network node 110 or UE 120) and transmit communications to a downstream station (e.g., UE 120 or another network node 110). In this case, the wireless communication network 100 may include or be referred to as a "multi-hop network." Figure 1 In the example shown, network node 110d (e.g., a relay network node) can communicate with network node 110a (e.g., a macro network node) and UE 120d to facilitate communication between network node 110a and UE 120d. Additionally or alternatively, UE 120 can be a relay station capable of relaying transmissions to or from other UE 120s, or can operate as such a relay station. UE 120 relaying communication can be referred to as a UE repeater or relay UE, etc.

[0054] UE 120 may be physically distributed throughout the wireless communication network 100, and each UE 120 may be stationary or mobile. UE 120 may be, may include, an access terminal, another terminal, a mobile station, or a subscriber unit, or may be included in an access terminal, another terminal, a mobile station, or a subscriber unit. UE 120 may be, or may include, a cellular phone (e.g., a smartphone), a personal digital assistant (PDA), a wireless modem, a wireless communication device, a handheld device, a laptop computer, a cordless phone, a wireless local loop (WLL) station, a tablet device, a camera, a gaming device, a netbook, a smartbook, an ultrabook, a medical device, a biometric device, a wearable device (e.g., a smartwatch, smart clothing, smart glasses, a smart wristband and / or smart jewelry (such as a smart ring or smart bracelet)), an entertainment device (e.g., a music device, a video device and / or a satellite radio), an extended reality (XR) device, a vehicle component or sensor, a smart meter or sensor, industrial manufacturing equipment, a Global Navigation Satellite System (GNSS) device (such as a Global Positioning System device or another type of positioning device), a UE function of a network node, and / or any other suitable device or function that can communicate via a wireless medium, or may be coupled to them.

[0055] UE 120 and / or network node 110 may include one or more chips, system-on-a-chip (SoC), chipsets, packages, or devices that individually or collectively constitute or include a processing system. The processing system includes processor (or “processing”) circuitry in the form of one or more processors, microprocessors, processing units (such as central processing units (CPUs), graphics processing units (GPUs), neural processing units (NPUs), and / or digital signal processors (DSPs)), processing blocks, application-specific integrated circuits (ASICs), programmable logic devices (PLDs) (such as field-programmable gate arrays (FPGAs)), or other discrete gate or transistor logic components or circuits (all of which are generally referred to herein individually as “processors” or collectively as “processors” or “processor circuitry”). One or more of these processors may be individually or collectively configured to perform the various functions or operations described herein. A group of processors that can be configured or configured to perform a set of functions may include a first processor that can be configured or configured to perform a first function in the set, and a second processor that can be configured or configured to perform a second function in the set, or may include the entire group of processors that are configured or configured to perform the set of functions.

[0056] The processing system may also include memory circuitry in the form of one or more memory devices, memory blocks, memory elements, or other discrete gate or transistor logic components or circuits, each of which may include tangible storage media such as random access memory (RAM) or read-only memory (ROM) or combinations thereof (all of which are generally referred to herein individually as "memory" or collectively as "memory" or "memory circuitry"). One or more of these memories may be coupled to one or more processors in the processor (e.g., operatively coupled, communicatively coupled, electronically coupled, or electrically coupled) and may store processor-executable code (such as software) individually or collectively, which, when executed by one or more processors in the processor, may configure one or more processors in the processor to perform the various functions or operations described herein. Additionally or alternatively, in some examples, one or more processors in the processor may be pre-configured to perform the various functions or operations described herein without being configured by software. The processing system may also include or be coupled to one or more modems (such as Wi-Fi (e.g., IEEE compliant) modems or cellular (e.g., 3GPP 4G LTE, 5G, or 6G compliant) modems). In some embodiments, one or more processors of the processing system include or implement one or more modems among the modems. The processing system may also include, or be coupled to, multiple radio components (collectively, “radio components”), multiple RF chains, or multiple transceivers, each of which may in turn be coupled to one or more antennas among multiple antennas. In some embodiments, one or more processors of the processing system include or implement one or more of the radio components, RF chains, or transceivers. UE 120 may be included or may be contained in a housing that houses components associated with UE 120, including the processing system.

[0057] Some UEs 120 may be considered Machine Type Communication (MTC) UEs, Evolved or Enhanced Machine Type Communication (eMTC) UEs, Further Enhanced eMTC (feMTC) UEs or Enhanced feMTC (efeMTC) UEs, or further evolutions thereof, all of which may be collectively referred to as "MTC UEs". MTC UEs may be, may include, or may be included in or coupled with the following: robots, unmanned aerial vehicles, remote devices, sensors, instruments, monitors, and / or location tags. Some UEs 120 may be considered IoT devices and / or may be implemented as NB-IoT (Narrowband IoT) devices. IoT UEs or NB-IoT devices may be, may include, or may be included in or coupled with the following: industrial machines, appliances, refrigerators, doorbell camera devices, home automation devices, and / or lighting fixtures, etc. Some UEs 120 may be considered customer premises equipment, which may include telecommunications equipment installed at a customer location (such as a home or office) to enable access to a service provider’s network (such as being included in or communicating with the wireless communication network 100).

[0058] Some UEs 120 can be categorized according to different categories associated with varying levels of complexity and / or capabilities. UEs 120 in the first category facilitate large-scale IoT within the wireless communication network 100 and offer lower complexity and / or lower cost compared to UEs 120 in the second category. UEs 120 in the second category may include mission-critical IoT devices, legacy UEs, baseline UEs, high-level UEs, advanced UEs, full-capability UEs, and / or premium UEs capable of ultra-reliable low-latency communication (URLLC), enhanced mobile broadband (eMBB), and / or precise positioning, etc., within the wireless communication network 100. UEs 120 in the third category may have intermediate-level complexity and / or capabilities (e.g., capabilities between UEs 120 in the first category and UEs 120 in the second category). UEs 120 in the third category may be referred to as reduced-capability UEs (“RedCap UEs”), intermediate-level UEs, NR lightweight UEs, and / or NR simplified UEs, etc. RedCap UEs bridge the gap in capabilities and complexity between NB-IoT devices and / or eMTC UEs and mission-critical IoT devices and / or premium UEs. RedCap UEs can include, for example, wearable devices, IoT devices, industrial sensors, and / or cameras associated with limited bandwidth, power capacity, and / or transmission range. RedCap UEs can support healthcare environments, building automation, power distribution, process automation, transportation and logistics, and / or smart city deployments, among others.

[0059] In some examples, two or more UEs 120 (e.g., shown as UE 120a and UE 120e) can communicate directly with each other using sidelink communication (e.g., without communicating through a network node 110 acting as an intermediary). As an example, UE 120a can send data, control information, or other signaling directly to UE 120e as sidelink communication. This contrasts with, for example, UE 120a first sending data to network node 110 in UL communication, and then that network node sending data to UE 120e in DL communication. In various examples, UE 120 can use peer-to-peer (P2P) communication protocols, device-to-device (D2D) communication protocols, vehicle-to-everything (V2X) communication protocols (which may include vehicle-to-vehicle (V2V) protocols, vehicle-to-infrastructure (V2I) protocols, and / or vehicle-to-pedestrian (V2P) protocols), and / or mesh network communication protocols to send and receive sidelink communication. In some deployments and configurations, network node 110 may schedule and / or allocate resources for sidelink communication between UEs 120 in the wireless communication network 100. In some other deployments and configurations, UE 120 (instead of network node 110) may perform or cooperate with or negotiate with one or more other UEs to perform scheduling operations, resource selection operations, and / or other operations for sidelink communication.

[0060] In various examples, in addition to half-duplex operation, some network nodes and UEs in the wireless communication network 100, including network node 110 and UE 120, can also be configured for full-duplex operation. Network node 110 or UE 120 operating in half-duplex mode can perform only one of transmission or reception during a specific time resource period (such as a specific time slot, symbol, or other time period). Half-duplex operation may involve time division duplex (TDD), where the DL transmission of network node 110 and the UL transmission of UE 120 do not occur in the same time resource (i.e., the transmissions do not overlap in time). In contrast, network node 110 or UE 120 operating in full-duplex mode can transmit and receive communications concurrently (e.g., within the same time resource). By operating in full-duplex mode, network node 110 and / or UE 120 can generally increase the capacity of the network and radio access links. In some examples, full-duplex operation may involve frequency division duplex (FDD), in which network node 110 performs DL transmission in a first frequency band or on a first component carrier, and UE 120 performs transmission in a second frequency band or on a second component carrier, the second frequency band or the second component carrier being different from the first frequency band or the first component carrier, respectively. In some examples, full-duplex operation may be enabled for UE 120 but not for network node 110. For example, UE 120 may simultaneously transmit UL to the first network node 110 and receive DL transmissions from the second network node 110 in the same time resources. In some other examples, full-duplex operation may be enabled for network node 110 but not for UE 120. For example, network node 110 may simultaneously transmit DL to the first UE 120 and receive UL transmissions from the second UE 120 in the same time resources. In some other examples, full-duplex operation may be enabled for both network node 110 and UE 120.

[0061] In some examples, UE 120 and network node 110 can perform MIMO communication. "MIMO" generally refers to the simultaneous transmission or reception of multiple signals (such as multiple layers or multiple data streams) using the same time and frequency resources. MIMO technology typically utilizes multipath propagation. MIMO can be implemented using various spatial processing or spatial multiplexing operations. In some examples, MIMO can support simultaneous transmission to multiple receivers, which is called multi-user MIMO (MU-MIMO). Some radio access technologies (RATs) can employ advanced MIMO techniques such as mTRP operation (including redundant transmission or reception on multiple TRPs), reciprocity in the time or frequency domain, single-frequency network (SFN) transmission, or noncoherent joint transmission (NC-JT).

[0062] In some aspects, UE 120 may include a communication manager 140. As described in more detail elsewhere herein, the communication manager 140 may receive RS transmitted by neighboring cells of UE 120; transmit an RS measurement report based at least in part on measurements of RS received from neighboring cells; receive, after transmitting the RS measurement report, an indication associated with the neighboring cell, wherein the indication indicates that the neighboring cell intends to act as a secondary cell of UE 120 or as a primary cell of UE 120; and receive, after receiving the indication, at least one of an SSB associated with the neighboring cell or an SIB associated with the neighboring cell. Additionally or alternatively, the communication manager 140 may perform one or more other operations described herein.

[0063] In some aspects, network node 110 may include communication manager 150. As described in more detail elsewhere herein, communication manager 150 may receive an RS measurement report from UE 120 associated with an RS transmitted by a neighboring cell of UE 120; determine, at least in part, based on the RS measurement report whether the neighboring cell should act as a secondary cell or a primary cell of UE 120; and send to UE 120 an instruction indicating whether the neighboring cell should act as a secondary cell or a primary cell of UE 120. Additionally or alternatively, as described in more detail elsewhere herein, communication manager 150 may transmit an RS associated with a neighboring cell of UE 120; receive, after transmitting the RS, an instruction for transmitting at least one of an SSB or an SIB associated with the neighboring cell; and transmit at least one of the SSB or SIB based at least in part on the instruction. Additionally or alternatively, communication manager 150 may perform one or more other operations described herein.

[0064] As indicated above, Figure 1 This is provided as an example. Other examples may be provided in conjunction with [the relevant information]. Figure 1 The examples described are different.

[0065] Figure 2 This is an illustration of an example network node 110 communicating with an example UE 120 in a wireless network according to this disclosure.

[0066] like Figure 2As shown, network node 110 may include a data source 212, a transmit processor 214, a transmit (TX) MIMO processor 216, a set of modems 232 (shown as 232a to 232t, where t≥1), a set of antennas 234 (shown as 234a to 234v, where v≥1), a MIMO detector 236, a receive processor 238, a data sink 239, a controller / processor 240, a memory 242, a communication unit 244, a scheduler 246, and / or a communication manager 150, etc. In some configurations, one or a combination of antennas 234, modems 232, MIMO detectors 236, receive processors 238, transmit processors 214, and / or TX MIMO processors 216 may be included in the transceiver of network node 110. The transceiver may be under the control of and used by one or more processors (such as controller / processor 240), and in some respects, may perform aspects of the methods, procedures and / or operations described herein in conjunction with processor-readable code stored in memory 242. In some respects, network node 110 may include one or more interfaces, communication components and / or other components that facilitate communication with UE 120 or another network node.

[0067] The terms “processor,” “controller,” or “controller / processor” can refer to one or more controllers and / or one or more processors. For example, references to “a / the processor,” “a / the controller / processor,” etc. (in the singular) should be understood as referring to a combination of… Figure 2 The processor described refers to any one or more processors, such as a single processor or a combination of multiple different processors. The reference to "one or more processors" should be understood as a combination of references. Figure 2 Any one or more processors described herein. For example, one or more processors of network node 110 may include transmit processor 214, TX MIMO processor 216, MIMO detector 236, receive processor 238, and / or controller / processor 240. Similarly, one or more processors of UE 120 may include MIMO detector 256, receive processor 258, transmit processor 264, TX MIMO processor 266, and / or controller / processor 280.

[0068] In some aspects, a single processor can perform all operations described as being performed by one or more processors. In some aspects, a first set of one or more processors can perform a first operation described as being performed by that one or more processors, and a second set of one or more processors can perform a second operation described as being performed by that one or more processors. The processors in the first set and the processors in the second set can be the same set of processors or can be different sets of processors. The reference to "one or more memories" should be understood to refer to any one or more memories of the corresponding device, such as combined... Figure 2 The memory described. For example, an operation described as being performed by one or more memories can be performed by the same subset of the one or more memories or by different subsets of the one or more memories.

[0069] For downlink communication from network node 110 to UE 120, transmitting processor 214 may receive data (“downlink data”) intended for use by UE 120 (or a set of UEs including UE 120) from data source 212 (such as a data pipeline or data queue). In some examples, transmitting processor 214 may select one or more MCSs for UE 120 based on one or more Channel Quality Indicators (CQIs) received from UE 120. Network node 110 may process the data (e.g., including encoding the data) according to the MCS selected for UE 120 for transmission to UE 120 on the downlink, thereby generating data symbols. Transmitting processor 214 may process system information (e.g., semi-static resource partitioning information (SRPI)) and / or control information (e.g., CQI requests, grants, and / or upper-layer signaling) and provide overhead symbols and / or control symbols. The transmitting processor 214 can generate reference symbols for reference signals (e.g., cell-specific reference signals (CRS), demodulation reference signals (DMRS), or channel state information (CSI) reference signals (CSI-RS)) and / or synchronization signals (e.g., primary synchronization signal (PSS) or secondary synchronization signal (SSS)).

[0070] The TX MIMO processor 216 can perform spatial processing (e.g., pre-decoding) on ​​data symbols, control symbols, overhead symbols, and / or reference symbols, where applicable, and can provide a set of output symbol streams (e.g., T output symbol streams) to a set of modems 232. For example, each output symbol stream can be provided to a corresponding modulator component (shown as MOD) of modem 232. Each modem 232 can use the corresponding modulator component to process (e.g., modulate) the corresponding output symbol stream (e.g., for Orthogonal Frequency Division Multiplexing (OFDM)) to obtain an output sample stream. Each modem 232 can further use the corresponding modulator component to process (e.g., convert to analog, amplify, filter, and / or up-convert) the output sample stream to obtain a time-domain downlink signal. Modems 232a to 232t can transmit a set of downlink signals (e.g., T downlink signals) together via a set of corresponding antennas 234.

[0071] Downlink signals may include DCI communication, MAC control element (MAC-CE) communication, RRC communication, downlink reference signals, or another type of downlink communication. Downlink signals may be transmitted on the PDCCH, PDSCH, and / or on another downlink channel. Downlink signals may carry one or more transport blocks (TBs) of data. A TB may be a data unit transmitted via the air interface in the wireless communication network 100. A data stream (e.g., from data source 212) may be encoded into multiple TBs for transmission via the air interface. The number of TBs used to carry data associated with a particular data stream may be associated with a TB size shared by multiple TBs. The TB size may be based on the radio channel conditions of the air interface, the MCS used to encode the data, downlink resources allocated for transmitting data, and / or other parameters, or otherwise associated with them. Generally, a larger TB size allows for a larger amount of data to be transmitted in a single transmission, reducing signaling overhead. However, a larger TB size may be more prone to transmission and / or reception errors than a smaller TB size, but such errors can be mitigated through more robust error correction techniques.

[0072] For uplink communication from UE 120 to network node 110, the uplink signal from UE 120 may be received by antenna 234, processed by modem 232 (e.g., demodulator component of modem 232, shown as DEMOD), detected where applicable by MIMO detector 236 (e.g., receive (Rx) MIMO processor), and / or further processed by receive processor 238 to obtain decoded data and / or control information. Receive processor 238 may provide the decoded data to data sink 239 (which may be a data pipeline, data queue, and / or another type of data sink) and provide the decoded control information to processors such as controller / processor 240.

[0073] Network node 110 may use scheduler 246 to schedule one or more UEs 120 for downlink or uplink communication. In some aspects, scheduler 246 may use DCI to dynamically schedule DL transmissions to and / or UL transmissions from UE 120. In some examples, scheduler 246 may allocate repetitive time-domain and / or frequency-domain resources that UE 120 may use for transmitting and / or receiving communication with RRC configuration (e.g., semi-static configuration), for example, to perform semi-persistent scheduling (SPS) or to configure configuration grant (CG) for UE 120.

[0074] One or more of the following may be included in the RF chain of network node 110: transmit processor 214, TX MIMO processor 216, modem 232, antenna 234, MIMO detector 236, receive processor 238, and / or controller / processor 240. The RF chain may include one or more filters, mixers, oscillators, amplifiers, analog-to-digital converters (ADCs), and / or other devices for converting analog signals (such as those used for transmission or reception via an air interface) to digital signals (such as those used for processing by one or more processors of network node 110). In some aspects, the RF chain may be a transceiver of network node 110, or may be included in such a transceiver.

[0075] In some examples, network node 110 may use communication unit 244 to communicate with the core network and / or other network nodes. Communication unit 244 may support wired and / or wireless communication protocols and / or connections, such as Ethernet, fiber optic, Common Public Radio Interface (CPRI), and / or wired or wireless backhaul, etc. Network node 110 may use communication unit 244 to send and / or receive data associated with UE 120, or to execute network control signaling, etc. Communication unit 244 may include transceivers and / or interfaces, such as network interfaces.

[0076] UE 120 may include a collection of antennas 252 (shown as antennas 252a to 252r, where r ≥ 1), a collection of modems 254 (shown as modems 254a to 254u, where u ≥ 1), a MIMO detector 256, a receive processor 258, a data sink 260, a data source 262, a transmit processor 264, a TX MIMO processor 266, a controller / processor 280, a memory 282, and / or a communication manager 140, etc. One or more components of UE 120 may be included in housing 284. In some aspects, one or a combination of antenna 252, modem 254, MIMO detector 256, receive processor 258, transmit processor 264, or TX MIMO processor 266 may be included in a transceiver included in UE 120. The transceiver may be under the control of and used by one or more processors (such as controller / processor 280), and in some respects, may perform aspects of the methods, procedures, or operations described herein in conjunction with processor-readable code stored in memory 282. In some respects, UE 120 may include another interface, another communication component, and / or another component that facilitates communication with network node 110 and / or another UE 120.

[0077] For downlink communication from network node 110 to UE 120, the set of antennas 252 can receive downlink communication or signals from network node 110 and can provide a set of received downlink signals (e.g., R received signals) to a set of modems 254. For example, each received signal can be provided to a corresponding demodulator component (shown as DEMOD) of modem 254. Each modem 254 can use the corresponding demodulator component to condition (e.g., filter, amplify, downconvert, and / or digitize) the received signal to obtain an input sample. Each modem 254 can use the corresponding demodulator component to further demodulate or process the input sample (e.g., for OFDM) to obtain a received symbol. MIMO detector 256 can obtain the received symbols from the set of modems 254, can perform MIMO detection on the received symbols where applicable, and can provide the detected symbols. The receiver processor 258 can process (e.g., decode) the detected symbols, provide the decoded data for the UE 120 to the data sink 260 (which may include a data pipeline, a data queue, and / or an application running on the UE 120), and provide the decoded control information and system information to the controller / processor 280.

[0078] For uplink communication from UE 120 to network node 110, the transmitting processor 264 may receive and process data (“uplink data”) from data source 262 (such as data pipelines, data queues, and / or applications running on UE 120) and control information from controller / processor 280. The control information may include one or more parameters, feedback, one or more signal measurements, and / or other types of control information. In some aspects, the receiving processor 258 and / or controller / processor 280 may determine one or more parameters related to the transmission of uplink communication for received signals (such as those received from network node 110 or another UE). One or more parameters may include a Reference Signal Received Power (RSRP) parameter, a Received Signal Strength Indicator (RSSI) parameter, a Reference Signal Received Quality (RSRQ) parameter, a Channel Quality Indicator (CQI) parameter, or a Transmit Power Control (TPC) parameter, etc. The control information may include indications of RSRP, RSSI, RSRQ, CQI, TPC, and / or another parameter. Control information can facilitate parameter selection and / or scheduling for UE 120 by network node 110.

[0079] Transmitter 264 can generate reference symbols for one or more reference signals, such as uplink DMRS, uplink SRS, and / or another type of reference signal. Symbols from transmitter 264 may be pre-decoded by TX MIMO processor 266, where applicable, and further processed by an assembly of modems 254 (e.g., for DFT-s-OFDM or CP-OFDM). TX MIMO processor 266 may (where applicable) perform spatial processing (e.g., pre-decoding) on ​​data symbols, control symbols, overhead symbols, and / or reference symbols, and may provide an assembly of output symbol streams (e.g., U output symbol streams) to the assembly of modems 254. For example, each output symbol stream may be provided to a corresponding modulator component (shown as MOD) of modem 254. Each modem 254 may use the corresponding modulator component to process (e.g., modulate) the corresponding output symbol stream (e.g., for OFDM) to obtain an output sample stream. Each modem 254 may further use a corresponding modulator component to process (e.g., convert to analog, amplify, filter, and / or upconvert) the output sample stream to obtain an uplink signal.

[0080] Modems 254a to 254u can transmit a set of uplink signals (e.g., R uplink signals or U uplink symbols) via a set of corresponding antennas 252. Uplink signals may include UCI communication, MAC-CE communication, RRC communication, or another type of uplink communication. Uplink signals can be transmitted on PUSCH, PUCCH, and / or another type of uplink channel. Uplink signals can carry one or more TBs of data. Sidelink data and control transmission (i.e., transmission directly between two or more UEs 120) typically uses techniques similar to those described for uplink data and control transmission and may use sidelink-specific channels such as the Physical Sidelink Shared Channel (PSSCH), Physical Sidelink Control Channel (PSCCH), and / or Physical Sidelink Feedback Channel (PSFCH).

[0081] One or more antennas in the set of antennas 252 or the set of antennas 234 may include one or more antenna panels, one or more antenna groups, one or more sets of antenna elements, or one or more antenna arrays, etc., or may be included in one or more antenna panels, one or more antenna groups, one or more sets of antenna elements, or one or more antenna arrays, etc. Antenna panels, antenna groups, sets of antenna elements, or antenna arrays may include one or more antenna elements (within a single housing or multiple housings), a set of coplanar antenna elements, a set of non-coplanar antenna elements, or with one or more transmitting or receiving components (such as...) Figure 2 An antenna module is a combination of one or more antenna elements coupled to one or more components. As used herein, "antenna" can mean one or more antennas, one or more antenna panels, one or more antenna groups, one or more collections of antenna elements, or one or more antenna arrays. "Antenna panel" can mean a group of antennas (such as antenna elements) arranged in an array or panel that can facilitate beamforming by manipulating the parameters of that group of antennas. "Antenna module" can mean a circuit that includes one or more antennas, and may also include one or more other components (such as filters, amplifiers, or processors) associated with integrating the antenna module into a wireless communication device.

[0082] In some examples, each antenna element of antenna 234 or antenna 252 may include one or more sub-elements for radiating or receiving radio frequency signals. For example, a single antenna element may include a first sub-element cross-polarized with a second sub-element, which can be used to independently transmit cross-polarized signals. Antenna elements may include patch antennas, dipole antennas, and / or other types of antennas arranged in a linear pattern, a two-dimensional pattern, or another pattern. The spacing between antenna elements can allow signals with a desired wavelength transmitted individually by the antenna elements to interact or interfere (e.g., to form a desired beam) in various directions. For example, given a desired wavelength or frequency range, the spacing may provide a quarter wavelength, half a wavelength, or another fraction of the wavelength between adjacent antenna elements to allow desired constructive and destructive interference modes of signals transmitted by individual antenna elements within that desired range.

[0083] The amplitude and / or phase of signals transmitted via antenna elements and / or sub-elements can be modulated and (e.g., by manipulating phase shifts, phase offsets, and / or amplitudes) shifted relative to each other to generate one or more beams; this is known as beamforming. The term "beam" can refer to the directional transmission of a wireless signal toward a receiving device or otherwise in a desired direction. "Beam" can also generally refer to the direction associated with such directional signal transmission, the set of directional resources associated with the signal transmission (e.g., angle of arrival, horizontal direction, and / or vertical direction), and / or a set of parameters indicating one or more aspects of the directional signal, the direction associated with the signal, and / or the set of directional resources associated with the signal. In some implementations, antenna elements can be individually selected or deselected for the directional transmission of a signal (or multiple signals) by controlling the amplitude of one or more corresponding amplifiers and / or the phase of the signal to form one or more beams. The shape of the beam (such as amplitude, width, and / or the presence of sidelobes) and / or the direction of the beam (such as the angle of the beam relative to the surface of the antenna array) can be dynamically controlled by modifying the phase shifts, phase offsets, and / or amplitudes of multiple signals relative to each other.

[0084] Different UEs 120 or network nodes 110 may include different numbers of antenna elements. For example, UE 120 may include a single antenna element, two antenna elements, four antenna elements, eight antenna elements, or different numbers of antenna elements. As another example, network node 110 may include eight antenna elements, 24 antenna elements, 64 antenna elements, 128 antenna elements, or different numbers of antenna elements. Generally speaking, a larger number of antenna elements provides increased control over the parameters used for beamforming compared to a smaller number of antenna elements, while a smaller number of antenna elements may be less complex to implement and can use less power. Multiple antenna elements can support multi-layer transmission, in which the same time and frequency resources are used to utilize spatial multiplexing to transmit a first layer of communication (which may include a first data stream) and a second layer of communication (which may include a second data stream).

[0085] Although Figure 2 The boxes in the diagram are illustrated as different components, but the functions described above with respect to these boxes may be implemented in a single hardware, software, or combined component, or in various combinations of components. For example, the functions described with respect to transmit processor 264, receive processor 258, and / or TX MIMO processor 266 may be performed by or under the control of controller / processor 280.

[0086] Figure 3 This is an illustration of an example decomposed base station architecture 300 according to the present disclosure. One or more components of the example decomposed base station architecture 300 may be, may include, or may be included in one or more network nodes (such as one or more network nodes 110). The decomposed base station architecture 300 may include a CU 310, which may communicate directly with the core network 320 via a backhaul link, or may communicate indirectly with the core network 320 via one or more decomposed control units (such as non-RT RIC 350 and / or near-RT RIC 370 associated with a Service Management and Orchestration (SMO) framework 360 (e.g., via an E2 link)). The CU 310 may communicate with one or more DU 330s via a corresponding midhaul link (such as via an F1 interface). Each DU 330 may communicate with one or more RU 340s via a corresponding fronthaul link. Each RU 340 may communicate with one or more UE 120s via a corresponding RF access link. In some deployments, a UE 120 may be served simultaneously by multiple RU 340s.

[0087] Each component in the decomposed base station architecture 300 (including CU 310, DU 330, RU 340, near-RT RIC 370, non-RT RIC 350, and SMO frame 360) may include one or more interfaces or be coupled to one or more interfaces for receiving or transmitting signals, such as data or information, via wired or wireless transmission media.

[0088] In some respects, the CU 310 can be logically divided into one or more CU-UP units and one or more CU-CP units. When implemented in an O-RAN configuration, the CU-UP units can communicate bidirectionally with the CU-CP units via an interface such as an E1 interface. The CU 310 can be deployed to communicate with one or more DU 330s for network control and signaling, as needed. Each DU 330 may correspond to a logical unit that includes one or more base station functions for controlling the operation of one or more RU 340s. For example, the DU 330 may host various layers, such as the RLC layer, MAC layer, or one or more PHY layers (such as one or more high PHY layers or one or more low PHY layers). Each layer (which may also be referred to as a module) can be implemented using an interface for signaling to other layers (and modules) hosted by the DU 330, or for signaling to control functions hosted by the CU 310. Each RU 340 may implement lower-layer functionality. In some respects, the real-time and non-real-time aspects of communication with the control plane and user plane of the RU 340 can be controlled by the corresponding DU 330.

[0089] The SMO framework 360 supports RAN deployment and provisioning for both non-virtualized and virtualized network elements. For non-virtualized network elements, the SMO framework 360 supports the deployment of dedicated physical resources for RAN coverage requirements, which can be managed via operation and maintenance interfaces such as the O1 interface. For virtualized network elements, the SMO framework 360 can interact with cloud computing platforms such as the Open Cloud (O-Cloud) platform 390 to perform network element lifecycle management (such as instantiating virtualized network elements) via cloud computing platform interfaces such as the O2 interface. Virtualized network elements may include, but are not limited to, CU 310, DU 330, RU 340, non-RT RIC 350, and / or near-RT RIC 370. In some aspects, the SMO framework 360 can communicate with hardware aspects of the 4G RAN, 5G NR RAN, and / or 6G RAN (such as the Open eNB (O-eNB) 380) via the O1 interface. Additionally or alternatively, the SMO framework 360 can communicate directly with each of one or more RUs 340 via the corresponding O1 interface. In some deployments, this configuration enables each DU 330 and CU 310 to be implemented in a cloud-based RAN architecture, such as a vRAN architecture.

[0090] The non-RT RIC 350 may include or implement logical functions that enable non-real-time control and optimization of RAN elements and resources, including artificial intelligence / machine learning (AI / ML) workflows for model training and updates, and / or policy-based guidance of applications and / or features in the near-RT RIC 370. The non-RT RIC 350 may be coupled to or communicate with the near-RT RIC 370, such as via an A1 interface. The near-RT RIC 370 may include or implement logical functions that enable near real-time control and optimization of RAN elements and resources via an interface, such as an E2 interface, through data collection and actions, connecting one or more CU 310s, one or more DU 330s, and / or O-eNBs to the near-RT RIC 370.

[0091] In some aspects, to generate AI / ML models to be deployed in the near-RT RIC 370, the non-RT RIC 350 may receive parameters or external enrichment information from an external server. This information can be utilized by the near-RT RIC 370 and can be received from non-network data sources or network functions at the SMO framework 360 or the non-RT RIC 350. In some examples, the non-RT RIC 350 or near-RT RIC 370 may modulate RAN behavior or performance. For example, the non-RT RIC 350 may monitor long-term trends and patterns in performance and may employ AI / ML models to perform corrective actions via the SMO framework 360 (such as reconfiguration via the O1 interface) or via the creation of RAN management policies (such as A1 interface policies).

[0092] As indicated above, Figure 3 This is provided as an example. Other examples may be provided in conjunction with [the relevant information]. Figure 3 The examples described are different.

[0093] Figure 1 , Figure 2 or Figure 3 Network node 110, its controller / processor 240, UE 120, UE 120's controller / processor 280, CU 310, DU 330, RU 340, or any other component may implement one or more technologies or perform one or more operations associated with the on-demand SSB or SIB process, as described in more detail elsewhere herein. For example, network node 110's controller / processor 240, UE 120's controller / processor 280, CU 310, DU 330, RU 340, or any other component may implement one or more technologies or perform one or more operations associated with the on-demand SSB or SIB process, as described in more detail elsewhere herein. Figure 2 Any other component, CU 310, DU 330, or RU 340 can (alone or in combination with one or more other processors) perform or direct, for example... Figure 6 Process 600 Figure 7 Process 700 Figure 8The operation of process 800 or other processes as described herein. Memory 242 may store data and program code for network node 110, CU 310, DU 330, or RU 340. Memory 282 may store data and program code for UE 120. In some examples, memory 242 or memory 282 may include a non-transitory computer-readable medium storing instruction sets (e.g., code or program code) for wireless communication. Memory 242 may include one or more memories, such as a single memory or multiple different memories (of the same or different types). Memory 282 may include one or more memories, such as a single memory or multiple different memories (of the same or different types). For example, the instruction set may be made executable by one or more processors of network node 110, UE 120, CU 310, DU 330, or RU 340 (e.g., directly, or after compilation, transformation, or interpretation). Figure 6 Process 600 Figure 7 Process 700 Figure 8 The process 800 or other processes as described herein. In some examples, the execution instructions may include run instructions, transform instructions, compile instructions, and / or interpret instructions, etc.

[0094] In some aspects, the UE (e.g., UE 120) includes: components for receiving RS transmitted by neighboring cells of the UE; components for transmitting an RS measurement report based at least in part on measurements of RS received from neighboring cells; components for receiving an indication associated with a neighboring cell after transmitting the RS measurement report, wherein the indication indicates that the neighboring cell intends to act as a secondary cell of the UE or that the neighboring cell intends to act as a primary cell of the UE; and / or components for receiving at least one of an SSB associated with a neighboring cell or an SIB associated with a neighboring cell after receiving the indication. Components for the UE to perform the operations described herein may include, for example, one or more of the following: a communication manager 140, an antenna 252, a modem 254, a MIMO detector 256, a receive processor 258, a transmit processor 264, a TX MIMO processor 266, a controller / processor 280, or a memory 282.

[0095] In some aspects, a network node (e.g., network node 110) includes: components for receiving an RS measurement report from a UE (e.g., UE 120), the RS measurement report being associated with an RS transmitted by a neighboring cell of the UE; components for determining, at least in part, based on the RS measurement report, whether the neighboring cell should act as a secondary cell or a primary cell of the UE; and / or components for transmitting to the UE an indication that the neighboring cell should act as a secondary cell or a primary cell of the UE. Additionally or alternatively, in some embodiments, the network node includes: components for transmitting an RS associated with a neighboring cell of the UE; components for receiving, after transmitting the RS, an indication for transmitting at least one of an SSB or an SIB associated with the neighboring cell; and / or components for transmitting at least one of the SSB or SIB based at least in part on the indication. Components used by network nodes to perform the operations described herein may include one or more of the following: a communication manager 150, a transmit processor 220, a TX MIMO processor 230, a modem 232, an antenna 234, a MIMO detector 236, a receive processor 238, a controller / processor 240, a memory 242, or a scheduler 246.

[0096] Figures 4A to 4B These are illustrations of examples 400 and 450 respectively, relating to the on-demand SSB process according to this disclosure. Figure 4A and Figure 4B As shown, Examples 400 and 450 include communication between UE 120 and network nodes 110a and 110b. In some aspects, UE 120 and network nodes 110a and 110b may be included in a wireless network (such as wireless network 100). Network nodes 110a and 110b and UE 120 may communicate via a radio access link (which may include uplink and downlink). In some aspects, UE 120 may operate in RRC connection mode. In some aspects, UE 120 may be configured for inter-band CA operation. Figure 4A and Figure 4B As shown in Examples 400 and 450, network node 110a supports the Pcell of UE 120 (e.g., a cell associated with a first component carrier in a first frequency band), and network node 110b supports the neighboring cells of UE 120 (e.g., cells associated with a second component carrier in a second frequency band). Here, the neighboring cells of UE 120 are candidate cells used to act as either the Pcell or the Scell ​​of UE 120.

[0097] In examples 400 and 450, such as Figure 4A and Figure 4BAs shown at reference 402, network node 110a can transmit an RS measurement configuration associated with an RS, and UE 120 can receive the RS measurement configuration associated with an RS. The RS measurement configuration may include a configuration for RSs associated with neighboring cells of UE 120, which are to be transmitted by network node 110b. In some aspects, the RS may be associated with time-domain tracking information, frequency-domain tracking information, or path loss information, etc., providing information for on-demand broadcast communications (such as SSB or SIB (e.g., SIB1)). In some aspects, the RS is a signal that enables UE 120 to perform cell search and RRM measurements associated with neighboring cells. In some aspects, the RS is a low-power signal (e.g., relative to SSB or SIB).

[0098] In some respects, the RS may include simplified synchronization information. For example, the SSB may include the primary synchronization signal (PSS), the physical broadcast channel (PBCH), and the secondary synchronization signal (SSS). Conversely, the RS may include only the PSS and SSS (i.e., in some respects, the RS may not include the PBCH), and therefore may require a relatively low amount of power to transmit. Thus, in some respects, the RS may be a simplified or reduced SSB. As another example, the reference signal may include only the PSS, SSS, and the third-level synchronization signal (TSS) (e.g., without the PBCH). The TSS may be a sequence associated with an index indicating the reference signal, etc. In some respects, the TSS may be or may include a DMRS of the PBCH. As another example, the RS may include a CSI-RS.

[0099] In some respects, the RS can indicate (or the UE 120 can obtain via the RS) the symbol timing information or physical cell identifier (PCI) of the cell through which it transmits the RS. For example, the RS may include a TSS indicating an index of the RS. The UE 120 can determine spatial domain information (e.g., downlink beam) for transmitting the RS. The UE 120 can determine an uplink beam (e.g., corresponding to the downlink beam) based on the spatial domain information. The UE 120 can associate the uplink beam with the cell through which it transmits the RS (e.g., using the index of the RS).

[0100] As shown with reference to 404, network node 110b can transmit RS associated with neighboring cells of UE 120, and UE 120 can receive RS associated with neighboring cells of UE 120. In some aspects, UE 120 can perform RS measurements. For example, UE 120 can receive RS at least in part based on RS measurement configuration received from network node 110a (e.g., Pcell), and can accordingly perform RS measurements transmitted by network node 110b (e.g., neighboring cells).

[0101] As shown with reference to 406, UE 120 may transmit RS measurement reports at least in part based on measurements of RS received from neighboring cells. In some aspects, UE 120 may transmit RS measurement reports on a periodic basis. That is, in some aspects, UE 120 may be configured to transmit RS measurement reports on a periodic basis. Thus, in some aspects, UE 120 may transmit RS measurement reports periodically according to the configuration used for RS measurement reporting. Additionally or alternatively, UE 120 may be configured to transmit RS measurement reports based on triggering events. Triggering events may include, for example, an offset associated with a neighboring cell being better than an offset associated with another cell associated with UE 120 (e.g., a special cell (SpCell)), a characteristic of the neighboring cell (e.g., signal strength) meeting a threshold, or a characteristic of another cell associated with UE 120 (e.g., SpCell) being lower than a first threshold while a characteristic of the neighboring cell is higher than a second threshold, and so on. In some aspects, UE 120 may transmit RS measurement reports on an uplink control channel (such as PUCCH).

[0102] like Figure 4A and Figure 4B As shown at reference 408, network node 110a can perform the Scell ​​activation procedure based at least in part on the RS measurement report. The Scell ​​activation procedure is associated with activating a neighboring cell as the Scell ​​of UE 120. For example, network node 110a can determine, at least in part, that a neighboring cell should be activated as the Scell ​​of UE 120 based on the RS measurement report received from UE 120. Network node 110a can then communicate with network node 110b to perform the Scell ​​activation procedure associated with activating the neighboring cell as the Scell ​​of UE 120. It is worth noting that in Figure 4A and Figure 4B In this process, network node 110a determines that a neighboring cell should be configured as the Scell ​​of UE 120. In some aspects, network node 110a may determine that a neighboring cell should be configured as the Pcell of UE 120 (e.g., UE 120 is to be handed over to a neighboring cell), examples of which are described below relative to... Figure 5A and Figure 5B Describe it.

[0103] As shown at reference 410, network node 110 can send an indication for activating a neighboring cell as the Scell ​​of UE 120, and UE 120 can receive an indication for activating a neighboring cell as the Scell ​​of UE 120. That is, UE 120 can receive an indication associated with a neighboring cell from network node 110a after sending an RS measurement report. In this example, the indication indicates that the neighboring cell should act as the Scell ​​of UE 120.

[0104] In some respects, network node 110b is triggered to send an SSB for reception by UE 120, so that a neighboring cell can act as an Scell ​​of UE 120. For example, after sending an RS, network node 110b (e.g., a neighboring cell) may receive an instruction to send an SSB associated with the neighboring cell.

[0105] In some aspects, as illustrated at reference 412a in Example 400, the indication for a neighboring cell to send an SSB is provided by network node 110a (e.g., a Pcell). That is, in some aspects, network node 110a can trigger network node 110b to send an SSB. For example, network node 110a (e.g., the Pcell of UE 120) can send a transmission activation signal for reception by network node 110b (e.g., a neighboring cell), and sending the activation signal can cause network node 110b to send an SSB for reception by UE 120. In some aspects, the transmission activation signal can be included in a message associated with activating a neighboring cell as an Scell. That is, in some aspects, network node 110a can send the activation signal in a message sent during the execution of the Scell ​​activation procedure.

[0106] Additionally or alternatively, as illustrated at reference 412b in Example 450, the indication for a neighboring cell to send an SSB is provided by UE 120. That is, in some aspects, UE 120 may trigger network node 110b to send an SSB. For example, UE 120 may send an uplink wake-up signal for reception by a neighboring cell. In some aspects, UE 120 may send the uplink wake-up signal at least in part based on an indication received by UE 120 that a neighboring cell has been activated as an Scell ​​of UE 120. In some aspects, the uplink wake-up signal may be Physical Random Access Channel (PRACH) communication. Additionally or alternatively, the uplink wake-up signal may be a scheduling request (SR).

[0107] In some aspects, UE 120 can be configured to send an uplink wake-up signal based on the uplink wake-up signal configuration. For example, network node 110a (e.g., Pcell) can send a configuration for the uplink wake-up signal to be sent by UE 120 to a neighboring cell, and UE 120 can receive the configuration for the uplink wake-up signal to be sent by UE 120 to a neighboring cell, and UE 120 can send the uplink wake-up signal based on the uplink wake-up signal configuration. In some aspects, the uplink wake-up signal configuration can be received from another cell associated with UE 120 (such as the primary / secondary cell (PScell) of UE 120).

[0108] In some aspects, UE 120 may transmit uplink wake-up signals at least in part based on neighboring cells that indicate UE 120 is permitted to transmit SSBs for. For example, network node 110a (e.g., Pcell) may transmit information identifying a set of neighboring cells to which UE 120 is permitted to transmit uplink wake-up signals, and UE 120 may receive information identifying a set of neighboring cells to which UE 120 is permitted to transmit uplink wake-up signals. Here, UE 120 may transmit uplink wake-up signals at least in part based on determining that neighboring cells are included in the identified set of neighboring cells. In some aspects, the number of neighboring cells in the set of neighboring cells may be at least in part based on UE capabilities. That is, the maximum size of the set of neighboring cells can be configured according to UE capabilities. In some aspects, the default size of the set of neighboring cells may be, for example, one neighboring cell or two neighboring cells.

[0109] In some aspects, UE 120 may transmit an uplink wake-up signal at least in part based on determining that the characteristics of the RS meet a threshold. For example, UE 120 may be configured to transmit an uplink wake-up signal only if the RSRP of the RS meets (e.g., is greater than or equal to) an RSRP threshold. In some aspects, the threshold may be a configurable threshold (e.g., by network node 110a). Additionally or alternatively, the threshold may be a fixed threshold (e.g., pre-configured on UE 120).

[0110] In some respects, UE 120 can send an uplink wake-up signal at least in part based on an indication that UE 120 wants to send an uplink wake-up signal. For example, network node 110a (e.g., Pcell) can send an indication that UE 120 wants to send an uplink wake-up signal, and UE 120 can receive the indication, and UE 120 can send the uplink wake-up signal at least in part based on receiving the indication. In this way, network node 110a (e.g., Pcell) can instruct UE 120 whether to trigger SSB transmission by a neighboring cell.

[0111] like Figure 4A and Figure 4B As shown at reference 414, network node 110b (e.g., a neighboring cell) may transmit an SSB for reception by UE 120, at least in part, based on an indication from the neighboring cell to transmit an SSB. In some aspects, as described above, the indication for transmitting an SSB may be a transmit activation signal transmitted by network node 110a (e.g., a Pcell). Additionally or alternatively, the indication for transmitting an SSB may be an uplink wake-up signal transmitted by UE 120, as described above. In some aspects, UE 120 may receive an SSB transmitted by a neighboring cell.

[0112] As shown with reference to 416, in some respects, UE 120 and neighboring cells can perform the Random Access Channel (RACH) procedure at least in part based on the SSB (e.g., to enable UE 120 to communicate with neighboring cells). UE 120 can communicate with neighboring cells (which now act as the Scell ​​of UE 120), as shown with reference to 418.

[0113] In this way, on-demand SSB transmission can be implemented in association with neighboring cells that are activated as Scells configured for inter-band CA connection mode UE 120, thereby reducing the power consumption of network node 110b (e.g., by reducing the number of SSB transmissions).

[0114] As indicated above, Figures 4A to 4B This is provided as an example. Other examples are available with reference to [the relevant information]. Figures 4A to 4B The content described is different.

[0115] Figures 5A to 5B These are illustrations of examples 500 and 550 respectively, related to the on-demand SSB and SIB processes according to this disclosure. Figure 5A and Figure 5BAs shown, Examples 500 and 550 include communication between UE 120 and network nodes 110a and 110b. In some aspects, UE 120 and network nodes 110a and 110b may be included in a wireless network (such as wireless network 100). Network nodes 110a and 110b and UE 120 may communicate via a radio access link (which may include uplink and downlink). In some aspects, UE 120 may operate in RRC connection mode. In some aspects, UE 120 may be configured for inter-band CA operation. Figure 5A and Figure 5B As shown in Examples 500 and 550, network node 110a supports the Pcell of UE 120 (e.g., a cell associated with a first component carrier in a first frequency band), and network node 110b supports the neighboring cells of UE 120 (e.g., cells associated with a second component carrier in a second frequency band). Here, the neighboring cells of UE 120 are candidate cells that can act as either the Pcell or the Scell ​​of UE 120.

[0116] In Examples 500 and 550, the operations associated with references 502, 504, and 506 can be performed in a manner similar to those described above with respect to references 402, 404, and 406, respectively.

[0117] like Figure 5A and Figure 5B As shown at reference 508, network node 110a can perform a handover (HO) preparation process based at least in part on RS measurement reports. The HO preparation process is associated with preparing a neighboring cell to act as a Pcell for UE 120 (e.g., so that UE 120 can be handed over from its (current) Pcell to the neighboring cell). For example, network node 110a can determine, at least in part, that UE 120 should be handed over to a neighboring cell based on RS measurement reports received from UE 120, such that the neighboring cell acts as the (new) Pcell for UE 120. Network node 110a can then communicate with network node 110b to perform the HO preparation process associated with preparing the neighboring cell to act as a Pcell for UE 120.

[0118] As shown at reference 510, network node 110 can send an indication that UE 120 is to be handed over to a neighboring cell (e.g., the neighboring cell is the target Pcell of UE 120), and UE 120 can receive the indication that UE 120 is to be handed over to a neighboring cell (e.g., the neighboring cell is the target Pcell of UE 120). That is, UE 120 can receive an indication associated with a neighboring cell from network node 110a after sending an RS measurement report. In this example, the indication indicates that UE 120 is to be handed over to a neighboring cell, such that the neighboring cell acts as the Pcell of UE 120.

[0119] In some respects, network node 110b is triggered to transmit SSB and SIB (e.g., SIB1) in association with the handover of UE 120 to a neighboring cell for reception by UE 120. For example, after transmitting RS, network node 110b (e.g., the neighboring cell) may receive an indication to transmit SSB and SIB associated with the neighboring cell.

[0120] In some aspects, as illustrated at reference 512a in Example 500, the indication for a neighboring cell to transmit SSB and SIB is provided by network node 110a (e.g., Pcell). That is, in some aspects, network node 110a can trigger network node 110b to transmit SSB and SIB. For example, network node 110a (e.g., the current Pcell of UE 120) can transmit a transmission activation signal for reception by network node 110b (e.g., a neighboring cell as the target Pcell), and the transmission activation signal can cause network node 110b to transmit SSB and SIB for reception by UE 120. In some aspects, the transmission activation signal can be included in a message associated with preparing a neighboring cell for HO. That is, in some aspects, network node 110a can transmit the activation signal in a message transmitted during the HO preparation process.

[0121] Additionally or alternatively, as illustrated at reference 512b in Example 550, the indication for neighboring cells to transmit SSB and SIB is provided by UE 120. That is, in some aspects, UE 120 may trigger network node 110b to transmit SSB and SIB. For example, UE 120 may transmit an uplink wake-up signal for reception by a neighboring cell. In some aspects, UE 120 may transmit the uplink wake-up signal at least in part based on an indication received by UE 120 that UE 120 is to be handed over to a neighboring cell. In some aspects, the uplink wake-up signal may be PRACH communication. Additionally or alternatively, the uplink wake-up signal may be SR.

[0122] In some aspects, UE 120 can be configured to send an uplink wake-up signal based on the uplink wake-up signal configuration. For example, network node 110a (e.g., Pcell) can send a configuration for the uplink wake-up signal to be sent by UE 120 to a neighboring cell, and UE 120 can receive the configuration for the uplink wake-up signal to be sent by UE 120 to a neighboring cell, and UE 120 can send the uplink wake-up signal based on the uplink wake-up signal configuration. In some aspects, the uplink wake-up signal configuration can be received from another cell associated with UE 120 (such as the PScell ​​of UE 120).

[0123] In some aspects, UE 120 may transmit uplink wake-up signals at least in part based on neighboring cells that indicate UE 120 is permitted to transmit SSB and SIB signals to. For example, network node 110a (e.g., Pcell) may transmit information identifying a set of neighboring cells to which UE 120 is permitted to transmit uplink wake-up signals, and UE 120 may receive information identifying a set of neighboring cells to which UE 120 is permitted to transmit uplink wake-up signals. Here, UE 120 may transmit uplink wake-up signals at least in part based on determining that neighboring cells are included in the identified set of neighboring cells. In some aspects, the number of neighboring cells in the set of neighboring cells may be at least in part based on UE capabilities. That is, the maximum size of the set of neighboring cells can be configured according to UE capabilities. In some aspects, the default size of the set of neighboring cells may be, for example, one neighboring cell or two neighboring cells.

[0124] In some aspects, UE 120 may transmit an uplink wake-up signal at least in part based on determining that the characteristics of the RS meet a threshold. For example, UE 120 may be configured to transmit an uplink wake-up signal only if the RSRP of the RS meets (e.g., is greater than or equal to) an RSRP threshold. In some aspects, the threshold may be a configurable threshold (e.g., by network node 110a). Additionally or alternatively, the threshold may be a fixed threshold (e.g., pre-configured on UE 120).

[0125] In some respects, UE 120 can send an uplink wake-up signal at least in part based on an indication that UE 120 wants to send an uplink wake-up signal. For example, network node 110a (e.g., Pcell) can send an indication that UE 120 wants to send an uplink wake-up signal, and UE 120 can receive the indication, and UE 120 can send the uplink wake-up signal at least in part based on receiving the indication. In this way, network node 110a (e.g., Pcell) can instruct UE 120 whether to trigger SSB and SIB transmissions by neighboring cells.

[0126] like Figure 5A and Figure 5B As shown at reference 514, network node 110b (e.g., a neighboring cell) may transmit SSBs and SIBs for reception by UE 120, at least in part, based on an indication from the neighboring cell that it intends to transmit SSBs and SIBs. In some aspects, as described above, the indication for transmitting SSBs and SIBs may be a transmit activation signal transmitted by network node 110a (e.g., a Pcell). Additionally or alternatively, the indication for transmitting SSBs and SIBs may be an uplink wake-up signal transmitted by UE 120, as described above. In some aspects, UE 120 may receive SSBs and SIBs transmitted by a neighboring cell.

[0127] As shown at reference 516, in some respects, UE 120 and neighboring cells can perform the RACH procedure at least in part based on SSB and SIB (e.g., to enable UE 120 to communicate with neighboring cells as Pcells). UE 120 can then communicate with the neighboring cells (now, UE 120's Pcells), as shown at reference 518.

[0128] In this way, on-demand SSB and SIB transmission can be implemented in association with a neighboring cell that acts as a (new) Pcell configured for inter-band CA connection mode UE 120, thereby reducing the power consumption of network node 110b (e.g., by reducing the number of SSB and SIB transmissions).

[0129] As indicated above, Figures 5A to 5B This is provided as an example. Other examples may be provided in conjunction with [the relevant information]. Figures 5A to 5B The content described is different.

[0130] Figure 6 This is a diagram illustrating an example process 600 performed, for example, at a UE or a device of a UE, according to this disclosure. Example process 600 is an example in which a device or UE (e.g., UE 120) performs operations associated with an on-demand SSB or SIB procedure.

[0131] like Figure 6 As shown, in some aspects, process 600 may include: receiving RS (block 610) transmitted by a neighboring cell of the UE. For example, the UE (e.g., using...) Figure 9 The described receiving component 902 and / or communication manager 906 can receive RS transmitted by the UE's neighboring cells, as described above.

[0132] like Figure 6 As further shown, in some aspects, process 600 may include sending an RS measurement report (box 620) based at least in part on measurements of RS received from neighboring cells. For example, the UE (e.g., using...) Figure 9 The transmitting component 904 and / or the communication manager 906 depicted may transmit RS measurement reports, at least in part, based on RS measurements received from neighboring cells, as described above.

[0133] like Figure 6 Further, in some aspects, process 600 may include: receiving an indication associated with a neighboring cell after sending an RS measurement report, wherein the indication indicates that the neighboring cell will act as a secondary cell of the UE or that the neighboring cell will act as the primary cell of the UE (box 630). For example, the UE (e.g., using...) Figure 9 The described receiving component 902 and / or communication manager 906 receive an indication associated with a neighboring cell after sending an RS measurement report, wherein the indication indicates that the neighboring cell should act as a secondary cell of the UE or as a primary cell of the UE, as described above. In some aspects, the indication indicates that the neighboring cell should act as a secondary cell of the UE or as a primary cell of the UE.

[0134] like Figure 6 Further shown, in some aspects, process 600 may include: receiving at least one of an SSB associated with a neighboring cell or an SIB associated with a neighboring cell after receiving an indication (box 640). For example, the UE (e.g., using...) Figure 9 The described receiving component 902 and / or communication manager 906 can receive at least one of an SSB associated with a neighboring cell or an SIB associated with a neighboring cell, as described above, after receiving an instruction.

[0135] Process 600 may include additional aspects, such as those described below and / or any single aspect or combination of aspects described in conjunction with one or more other processes described elsewhere in this document.

[0136] In a first aspect, process 600 includes: receiving an RS measurement configuration associated with the RS, and performing the measurement of the RS based at least in part on the RS measurement configuration.

[0137] In a second aspect, either alone or in combination with the first aspect, process 600 includes: sending an uplink wake-up signal for reception by the neighboring cell, the uplink wake-up signal being sent at least in part based on receiving the instruction, wherein the uplink wake-up signal is intended to cause the neighboring cell to transmit at least one of the SSB or the SIB.

[0138] In the third aspect, either alone or in combination with one or more of the first and second aspects, the uplink wake-up signal includes at least one of PRACH communication or SR.

[0139] In a fourth aspect, either alone or in combination with one or more of the first to third aspects, process 600 includes: receiving an uplink wake-up signal configuration associated with the uplink wake-up signal, wherein the uplink wake-up signal is sent according to the uplink wake-up signal configuration.

[0140] In a fifth aspect, either alone or in combination with one or more of the first to fourth aspects, process 600 includes: receiving information identifying a set of neighboring cells to which the UE is permitted to send an uplink wake-up signal, wherein the neighboring cells are included in the set of neighboring cells.

[0141] In the sixth aspect, either alone or in combination with one or more of the first to fifth aspects, the number of neighboring cells in the set of neighboring cells is at least partially based on UE capabilities.

[0142] In the seventh aspect, either alone or in combination with one or more of the first to sixth aspects, the uplink wake-up signal is sent at least in part based on determining that the characteristics of the RS meet a threshold.

[0143] In the eighth aspect, alone or in combination with one or more of the first to seventh aspects, process 600 includes: receiving an indication that the UE intends to send the uplink wake-up signal, wherein the uplink wake-up signal is sent at least in part based on the indication that the UE intends to send the uplink wake-up signal.

[0144] In the ninth aspect, either alone or in combination with one or more of the first to eighth aspects, process 600 includes: performing a random access channel (RACH) procedure with the neighboring cell based at least in part on the SSB or the at least one of the SSBs or SIBs.

[0145] although Figure 6An example box of process 600 is shown, but in some respects, process 600 may include... Figure 6 The boxes depicted may be fewer, different, or arranged differently compared to additional boxes. Alternatively, two or more boxes in the process 600 may be executed in parallel.

[0146] Figure 7 This is a diagram illustrating an example process 700 performed, for example, at a network node or a device within a network node, according to this disclosure. Example process 700 is an example in which a device or network node (e.g., network node 110) performs operations associated with an on-demand SSB or SIB process.

[0147] like Figure 7 As shown, in some aspects, process 700 may include: receiving an RS measurement report from the UE, the RS measurement report being associated with an RS transmitted by the UE's neighboring cells (box 710). For example, a network node (e.g., using...) Figure 10 The depicted receiving component 1002 and / or communication manager 1006 can receive RS measurement reports from the UE, which are associated with RS transmitted by the UE's neighboring cells, as described above.

[0148] like Figure 7 Further, in some aspects, process 700 may include: determining, at least in part, whether a neighboring cell should act as the secondary cell of the UE or the primary cell of the UE based on RS measurement reports (box 720). For example, network nodes (e.g., using...) Figure 10 The described communication manager 1006 can: determine, at least in part, whether a neighboring cell should act as the secondary cell of the UE or the primary cell of the UE based on RS measurement reports, as described above.

[0149] like Figure 7 As further shown, in some aspects, process 700 may include: sending an indication to the UE that a neighboring cell should act as the UE's secondary cell or that a neighboring cell should act as the UE's primary cell (box 730). For example, a network node (e.g., using...) Figure 10 The transmission component 1004 and / or communication manager 1006 described above can send an instruction to the UE indicating that a neighboring cell should act as the UE's secondary cell or the UE's primary cell, as described above.

[0150] Process 700 may include additional aspects, such as those described below and / or any single aspect or combination of aspects described in conjunction with one or more other processes described elsewhere in this document.

[0151] In the first aspect, process 700 includes: sending RS measurement configuration associated with the RS.

[0152] In a second aspect, either alone or in combination with the first aspect, process 700 includes: sending a transmission activation signal for reception by the neighboring cell, wherein the transmission activation signal is intended to cause the neighboring cell to transmit at least one of an SSB or an SIB for reception by the UE.

[0153] In a third aspect, either alone or in combination with one or more of the first and second aspects, the activation signal is included in a message associated with activating the neighboring cell as a secondary cell or in a message associated with preparing the neighboring cell as a primary cell.

[0154] In the fourth aspect, either alone or in combination with one or more of the first to third aspects, process 700 includes: sending an uplink wake-up signal configuration associated with an uplink wake-up signal to be sent by the UE to the neighboring cell.

[0155] In the fifth aspect, either alone or in combination with one or more of the first to fourth aspects, process 700 includes: transmitting information identifying a set of neighboring cells to which the UE is permitted to send an uplink wake-up signal, wherein the neighboring cells are included in the set of neighboring cells.

[0156] In the sixth aspect, either alone or in combination with one or more of the first to fifth aspects, the number of neighboring cells in the set of neighboring cells is at least partially based on UE capabilities.

[0157] In the seventh aspect, alone or in combination with one or more of the first to sixth aspects, process 700 includes: sending an indication that the UE wants to send an uplink wake-up signal for reception by the neighboring cell.

[0158] although Figure 7 An example box of process 700 is shown, but in some respects, process 700 may include... Figure 7 The boxes depicted may be fewer, different, or arranged differently compared to additional boxes. Alternatively, two or more boxes in the process 700 may be executed in parallel.

[0159] Figure 8 This is a diagram illustrating an example process 800 performed, for example, at a network node or a device within a network node, according to this disclosure. Example process 800 is an example in which a device or network node (e.g., network node 110) performs operations associated with an on-demand SSB or SIB process.

[0160] like Figure 8As shown, in some aspects, process 800 may include: transmitting RS associated with the UE's neighboring cells (block 810). For example, network nodes (e.g., using...) Figure 10 The transmission component 1004 and / or communication manager 1006 described herein can transmit RS associated with the UE’s neighboring cells, as described above.

[0161] like Figure 8 Further, in some aspects, process 800 may include: receiving an indication (block 820) after transmitting the RS for transmitting at least one of an SSB associated with a neighboring cell or an SIB associated with a neighboring cell. For example, a network node (e.g., using...) Figure 10 The described receiving component 1002 and / or communication manager 1006 can receive an instruction for transmitting at least one of an SSB associated with a neighboring cell or an SIB associated with a neighboring cell, as described above, after transmitting RS.

[0162] like Figure 8 As further shown, in some aspects, process 800 may include: sending at least one of the SSB or SIB based at least in part on an instruction (box 830). For example, a network node (e.g., using...) Figure 10 The transmitting component 1004 and / or the communication manager 1006 described herein may transmit at least one of the SSBs or SIBs based at least in part on instructions, as described above.

[0163] Process 800 may include additional aspects, such as those described below and / or any single aspect or combination of aspects described in conjunction with one or more other processes described elsewhere in this document.

[0164] In the first aspect, the indication includes an uplink wake-up signal sent by the UE.

[0165] In the second aspect, either alone or in combination with the first aspect, the uplink wake-up signal includes at least one of PRACH communication or SR.

[0166] In a third aspect, either alone or in combination with one or more of the first and second aspects, the indication includes a transmission activation signal sent by the UE's primary cell.

[0167] In the fourth aspect, either alone or in combination with one or more of the first to third aspects, process 800 includes performing a RACH procedure with the UE after transmitting the SSB or the SIB at least one of them.

[0168] although Figure 8 An example box of process 800 is shown, but in some respects, process 800 may include... Figure 8 The boxes depicted may be fewer, different, or arranged differently compared to additional boxes. Alternatively, two or more boxes in the process 800 may be executed in parallel.

[0169] Figure 9 This is a diagram of an example device 900 for wireless communication according to the present disclosure. Device 900 may be a UE, or a UE may include device 900. In some aspects, device 900 includes a receiving component 902, a transmitting component 904, and / or a communication manager 906, which can communicate with each other (e.g., via one or more buses and / or one or more other components). In some aspects, communication manager 906 is combined with... Figure 1 The communication manager 140 is described. As shown, the device 900 can communicate with another device 908 (such as a UE or a network node (such as a CU, DU, RU or base station)) using the receiving component 902 and the transmitting component 904.

[0170] In some respects, device 900 can be configured to perform the functions described herein. Figures 4A to 5B One or more operations described herein. Additionally or alternatively, apparatus 900 may be configured to perform one or more processes described herein, such as Figure 6 The process is 600. In some respects, Figure 9 The illustrated device 900 and / or one or more components may include a combination Figure 2 One or more components of the described UE. Additionally or alternatively, Figure 9 One or more components shown can be combined Figure 2 Implemented within one or more of the described components. Additionally or alternatively, one or more of the components in the group may be implemented at least partially as software stored in one or more memories. For example, a component (or a portion thereof) may be implemented as instructions or code stored in a non-transitory computer-readable medium and executable by one or more controllers or one or more processors to perform the function or operation of the component.

[0171] Receiver 902 may receive communications from device 908, such as reference signals, control information, data communications, or combinations thereof. Receiver 902 may provide the received communications to one or more other components of device 900. In some aspects, receiver 902 may perform signal processing on the received communications (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, demapping, equalization, interference cancellation, or decoding, etc.) and may provide the processed signals to one or more other components of device 900. In some aspects, receiver 902 may include combinations of... Figure 2The described UE includes one or more antennas, one or more modems, one or more demodulators, one or more MIMO detectors, one or more receiver processors, one or more controllers / processors, one or more memories, or combinations thereof.

[0172] Transmitting component 904 can transmit communications, such as reference signals, control information, data communications, or combinations thereof, to device 908. In some aspects, one or more other components of device 900 can generate communications and provide the generated communications to transmitting component 904 for transmission to device 908. In some aspects, transmitting component 904 can perform signal processing (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, etc.) on the generated communications and can transmit the processed signals to device 908. In some aspects, transmitting component 904 can include combinations of... Figure 2 The described UE includes one or more antennas, one or more modems, one or more modulators, one or more transmit MIMO processors, one or more transmit processors, one or more controllers / processors, one or more memories, or combinations thereof. In some aspects, the transmit component 904 may co-located with the receive component 902 in one or more transceivers.

[0173] The communication manager 906 may support the operation of the receiving component 902 and / or the transmitting component 904. For example, the communication manager 906 may receive information associated with configuring the reception of communications by the receiving component 902 and / or the transmission of communications by the transmitting component 904. Additionally or alternatively, the communication manager 906 may generate control information and / or provide control information to the receiving component 902 and / or the transmitting component 904 to control the reception and / or transmission of communications.

[0174] The receiving component 902 can receive RS transmitted by a neighboring cell of the UE. The transmitting component 904 can transmit an RS measurement report based at least in part on the measurement of the RS received from the neighboring cell. After transmitting the RS measurement report, the receiving component 902 can receive an indication associated with the neighboring cell, wherein the indication indicates that the neighboring cell intends to act as the secondary cell of the UE or the primary cell of the UE. After receiving the indication, the receiving component 902 can receive at least one of an SSB associated with the neighboring cell or an SIB associated with the neighboring cell.

[0175] The receiving component 902 can receive RS measurement configurations associated with RS.

[0176] The communication manager 906 can perform RS measurements, at least in part, based on the RS measurement configuration.

[0177] The transmitting component 904 can transmit an uplink wake-up signal for reception by a neighboring cell. The uplink wake-up signal is transmitted at least in part based on a received instruction, wherein the uplink wake-up signal is intended to cause the neighboring cell to transmit at least one of an SSB or an SIB.

[0178] The receiving component 902 can receive an uplink wake-up signal configuration associated with the uplink wake-up signal, wherein the uplink wake-up signal is sent according to the uplink wake-up signal configuration.

[0179] The receiving component 902 can receive information about a set of neighboring cells that identify the UE as being permitted to send uplink wake-up signals to it, wherein the neighboring cells are included in the set of neighboring cells.

[0180] The receiving component 902 can receive an indication that the UE wants to send an uplink wake-up signal, wherein the uplink wake-up signal is sent at least in part based on the indication that the UE wants to send an uplink wake-up signal.

[0181] The communication manager 906 can perform the RACH procedure with neighboring cells based at least in part on either the SSB or the SIB.

[0182] Figure 9 The number and arrangement of components shown are provided as an example. In reality, they can exist in combination with... Figure 9 The components shown are compared to additional components, fewer components, different components, or components arranged in a different manner. Furthermore, Figure 9 The two or more components shown can be implemented within a single component, or Figure 9 The single component shown can be implemented as multiple distributed components. Additionally or alternatively, Figure 9 The set (one or more) components shown are executable and described as being composed of Figure 9 The other set of components shown performs one or more functions.

[0183] Figure 10 This is a diagram of an example device 1000 for wireless communication according to the present disclosure. Device 1000 may be a network node, or a network node may include device 1000. In some aspects, device 1000 includes a receiving component 1002, a transmitting component 1004, and / or a communication manager 1006, which can communicate with each other (e.g., via one or more buses and / or one or more other components). In some aspects, communication manager 1006 is combined with... Figure 1 The communication manager 150 is described. As shown, the device 1000 can communicate with another device 1008 (such as a UE or a network node (such as a CU, DU, RU or base station)) using the receiving component 1002 and the transmitting component 1004.

[0184] In some respects, device 1000 can be configured to perform the functions described herein. Figures 4A to 5B The described one or more operations. Additionally or alternatively, the apparatus 1000 may be configured to perform one or more processes described herein, such as Figure 7 Process 700 Figure 8 The process 800 or a combination thereof. In some respects, Figure 10 The illustrated device 1000 and / or one or more components may include a combination Figure 2 One or more components of the described network node. Additionally or alternatively, Figure 10 One or more components shown can be combined Figure 2 Implemented within one or more of the described components. Additionally or alternatively, one or more of the components in the group may be implemented at least partially as software stored in one or more memories. For example, a component (or a portion thereof) may be implemented as instructions or code stored in a non-transitory computer-readable medium and executable by one or more controllers or one or more processors to perform the function or operation of the component.

[0185] Receiver 1002 may receive communications from device 1008, such as reference signals, control information, data communications, or combinations thereof. Receiver 1002 may provide the received communications to one or more other components of device 1000. In some aspects, receiver 1002 may perform signal processing on the received communications (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, demapping, equalization, interference cancellation, or decoding, etc.) and may provide the processed signals to one or more other components of device 1000. In some aspects, receiver 1002 may include combinations of... Figure 2 The described network node may include one or more antennas, one or more modems, one or more demodulators, one or more MIMO detectors, one or more receiver processors, one or more controllers / processors, one or more memories, or combinations thereof. In some aspects, receiver component 1002 and / or transmitter component 1004 may include or be included in a network interface. The network interface may be configured to acquire and / or output signals for device 1000 via one or more communication links, such as backhaul links, midhaul links, and / or fronthaul links.

[0186] Transmitting component 1004 may transmit communications, such as reference signals, control information, data communications, or combinations thereof, to device 1008. In some aspects, one or more other components of device 1000 may generate communications and provide the generated communications to transmitting component 1004 for transmission to device 1008. In some aspects, transmitting component 1004 may perform signal processing (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, etc.) on the generated communications and may transmit the processed signals to device 1008. In some aspects, transmitting component 1004 may include combinations of... Figure 2 The described network node includes one or more antennas, one or more modems, one or more modulators, one or more transmit MIMO processors, one or more transmit processors, one or more controllers / processors, one or more memories, or combinations thereof. In some aspects, the transmit component 1004 may co-located with the receive component 1002 in one or more transceivers.

[0187] The communication manager 1006 may support the operation of the receiving component 1002 and / or the transmitting component 1004. For example, the communication manager 1006 may receive information associated with configuring the receiving component 1002 to receive communication and / or the transmitting component 1004 to transmit communication. Additionally or alternatively, the communication manager 1006 may generate control information and / or provide control information to the receiving component 1002 and / or the transmitting component 1004 to control the receiving and / or transmitting of communication.

[0188] The receiving component 1002 can receive RS measurement reports from the UE, which are associated with RS transmitted by neighboring cells of the UE. The communication manager 1006 can determine, at least in part, whether a neighboring cell should act as a secondary cell or a primary cell of the UE, based on the RS measurement reports. The transmitting component 1004 can send an indication to the UE indicating whether a neighboring cell should act as a secondary cell or a primary cell of the UE.

[0189] The transmitting component 1004 can transmit RS measurement configurations associated with the RS.

[0190] The transmitting component 1004 can transmit a transmitting activation signal for reception by a neighboring cell, wherein the transmitting activation signal causes the neighboring cell to transmit at least one of an SSB or an SIB for reception by the UE.

[0191] The transmitting component 1004 can transmit an uplink wake-up signal configuration associated with an uplink wake-up signal to be transmitted by the UE to a neighboring cell.

[0192] The transmitting component 1004 can transmit information identifying a set of neighboring cells to which the UE is permitted to send an uplink wake-up signal, wherein the neighboring cells are included in the set of neighboring cells.

[0193] The transmitting component 1004 can transmit an indication that the UE wants to send an uplink wake-up signal for reception by a neighboring cell.

[0194] The transmitting component 1004 can transmit an RS associated with a neighboring cell of the UE. The receiving component 1002 can receive an indication after transmitting the RS for transmitting at least one of an SSB associated with a neighboring cell or an SIB associated with a neighboring cell. The transmitting component 1004 can transmit at least one of the SSB or SIB based at least in part on the indication.

[0195] The communication manager 1006 can perform a RACH procedure with the UE after sending at least one of the SSB or SIB.

[0196] Figure 10 The number and arrangement of components shown are provided as an example. In reality, they can exist in combination with... Figure 10 The components shown are compared to additional components, fewer components, different components, or components arranged in a different manner. Furthermore, Figure 10 The two or more components shown can be implemented within a single component, or Figure 10 The single component shown can be implemented as multiple distributed components. Additionally or alternatively, Figure 10 The set (one or more) components shown are executable and described as being composed of Figure 10 The other set of components shown performs one or more functions.

[0197] The following provides an overview of some aspects of this disclosure:

[0198] Aspect 1: A method of wireless communication performed by a user equipment (UE), the method comprising: receiving a reference signal (RS) transmitted by a neighboring cell of the UE; transmitting an RS measurement report based at least in part on a measurement of the RS received from the neighboring cell; receiving an indication associated with the neighboring cell after transmitting the RS measurement report, wherein the indication indicates that the neighboring cell is to act as a secondary cell of the UE or that the neighboring cell is to act as a primary cell of the UE; and receiving at least one of a synchronization signal block (SSB) associated with the neighboring cell or a system information block (SIB) associated with the neighboring cell after receiving the indication.

[0199] Aspect 2: The method according to aspect 1, the method further comprising: receiving an RS measurement configuration associated with the RS, and performing the measurement of the RS at least in part based on the RS measurement configuration.

[0200] Aspect 3: The method according to any one of Aspects 1 to 2, the method further comprising: sending an uplink wake-up signal for reception by the neighboring cell, the uplink wake-up signal being sent at least in part based on receiving the instruction, wherein the uplink wake-up signal is intended to cause the neighboring cell to send at least one of the SSB or the SIB.

[0201] Aspect 4: According to the method of aspect 3, the uplink wake-up signal includes at least one of physical random access channel (PRACH) communication or scheduling request (SR).

[0202] Aspect 5: The method according to aspect 3, the method further comprising: receiving an uplink wake-up signal configuration associated with the uplink wake-up signal, wherein the uplink wake-up signal is sent according to the uplink wake-up signal configuration.

[0203] Aspect 6: According to the method of aspect 3, the method further includes: receiving information identifying a set of neighboring cells to which the UE is permitted to send an uplink wake-up signal, wherein the neighboring cells are included in the set of neighboring cells.

[0204] Aspect 7: According to the method of aspect 6, the number of neighboring cells in the set of neighboring cells is at least partially based on UE capabilities.

[0205] Aspect 8: According to the method of aspect 3, the uplink wake-up signal is sent at least in part based on determining that the characteristics of the RS meet a threshold.

[0206] Aspect 9: The method according to aspect 3, the method further comprising: receiving an indication that the UE is to send the uplink wake-up signal, wherein the uplink wake-up signal is sent at least in part based on the indication that the UE is to send the uplink wake-up signal.

[0207] Aspect 10: The method according to any one of Aspects 1 to 9, the method further comprising: performing a random access channel (RACH) procedure with the neighboring cell based at least in part on the SSB or the at least one of the SSB or the SIB.

[0208] Aspect 11: The method according to any one of Aspects 1 to 10, wherein the RS includes at least one of a simplified SSB, a simplified SSB, or a channel state information RS (CSI-RS).

[0209] Aspect 12: A method of wireless communication performed by a network node, the method comprising: receiving a reference signal (RS) measurement report from a user equipment (UE), the RS measurement report being associated with RS transmitted by a neighboring cell of the UE; determining, at least in part, based on the RS measurement report, whether the neighboring cell should act as a secondary cell of the UE or the neighboring cell should act as a primary cell of the UE; and sending to the UE an indication that the neighboring cell should act as the secondary cell of the UE or the neighboring cell should act as the primary cell of the UE.

[0210] Aspect 13: The method according to aspect 12 further includes: sending an RS measurement configuration associated with the RS.

[0211] Aspect 14: The method according to any one of Aspects 12 to 13, the method further comprising: transmitting a transmission activation signal for reception by the neighboring cell, wherein the transmission activation signal is intended to cause the neighboring cell to transmit at least one of a synchronization signal block (SSB) or a system information block (SIB) for reception by the UE.

[0212] Aspect 15: According to the method of aspect 14, wherein the transmission of the activation signal is included in a message associated with activating the neighboring cell as a secondary cell or a message associated with preparing the neighboring cell as a primary cell.

[0213] Aspect 16: The method according to any one of Aspects 12 to 15, the method further comprising: transmitting an uplink wake-up signal configuration associated with an uplink wake-up signal to be transmitted by the UE to the neighboring cell.

[0214] Aspect 17: The method according to any one of Aspects 12 to 16, the method further comprising: transmitting information identifying a set of neighboring cells to which the UE is permitted to send an uplink wake-up signal, wherein the neighboring cells are included in the set of neighboring cells.

[0215] Aspect 18: The method according to aspect 17, wherein the number of neighboring cells in the set of neighboring cells is at least partially based on UE capabilities.

[0216] Aspect 19: The method according to any one of Aspects 12 to 18, the method further comprising: sending an indication that the UE is to send an uplink wake-up signal for reception by the neighboring cell.

[0217] Aspect 20: A method of wireless communication performed by a network node, the method comprising: transmitting a reference signal (RS) associated with a neighboring cell of a user equipment (UE); receiving, after transmitting the RS, an instruction for transmitting at least one of a synchronization signal block (SSB) associated with the neighboring cell or a system information block (SIB) associated with the neighboring cell; and transmitting the at least one of the SSB or the SIB based at least in part on the instruction.

[0218] Aspect 21: The method according to aspect 20, wherein the indication includes an uplink wake-up signal sent by the UE.

[0219] Aspect 22: According to the method of aspect 21, the uplink wake-up signal includes at least one of physical random access channel (PRACH) communication or scheduling request (SR).

[0220] Aspect 23: The method according to any one of Aspects 20 to 22, wherein the indication includes a transmit activation signal sent by the primary cell of the UE.

[0221] Aspect 24: The method according to any one of aspects 20 to 23, the method further comprising: performing a random access channel (RACH) procedure with the UE after transmitting at least one of the SSB or the SIB.

[0222] Aspect 25: An apparatus for wireless communication at a device, the apparatus comprising: one or more processors; one or more memories coupled to the one or more processors; and instructions stored in the one or more memories and executable by the one or more processors to cause the apparatus to perform the method according to one or more of aspects 1 to 24.

[0223] Aspect 26: An apparatus for wireless communication at a device, the apparatus comprising: one or more memories; and one or more processors coupled to the one or more memories, the one or more processors being configured to cause the device to perform the method according to one or more of aspects 1 to 24.

[0224] Aspect 27: An apparatus for wireless communication, the apparatus comprising at least one component for performing the method according to one or more of aspects 1 to 24.

[0225] Aspect 28: A non-transitory computer-readable medium storing code for wireless communication, the code including instructions executable by one or more processors to perform the method according to one or more of aspects 1 to 24.

[0226] Aspect 29: A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising one or more instructions which, when executed by one or more processors of a device, cause the device to perform the method according to one or more of aspects 1 to 24.

[0227] Aspect 30: A device for wireless communication, the device comprising: a processing system including one or more processors and one or more memories coupled to the one or more processors, the processing system being configured to cause the device to perform the method according to one or more of aspects 1 to 24.

[0228] Aspect 31: An apparatus for wireless communication at a device, the apparatus comprising: one or more memories; and one or more processors coupled to the one or more memories, the one or more processors being individually or collectively configured to cause the device to perform the method according to one or more of aspects 1 to 24.

[0229] While the foregoing disclosure provides examples and descriptions, it is not intended to be exhaustive or to limit the aspects to the precise form disclosed. Modifications and variations may be made based on the foregoing disclosure, or from various forms of practice.

[0230] As used herein, the term "component" is intended to be broadly interpreted as hardware or a combination of hardware and at least one of software or firmware. "Software" should be broadly interpreted as instructions, instruction sets, code, code segments, program code, programs, subroutines, software modules, applications, software applications, software packages, routines, subroutines, objects, executable programs, threads of execution, procedures, or functions, whether referred to as software, firmware, middleware, microcode, hardware description languages, or other terms. As used herein, a "processor" is implemented in hardware or a combination of hardware and software. It will be apparent that the systems or methods described herein may be implemented in various forms of hardware or combinations of hardware and software. The actual dedicated control hardware or software code used to implement these systems or methods is not limited in any way. Therefore, the operation and behavior of these systems or methods are described herein without reference to specific software code, as those skilled in the art will understand that the software and hardware can be designed to implement these systems or methods, at least in part, based on the description herein. Unless otherwise stated, a component configured to perform a function means that the component has the capability to perform that function, but it is not necessary for the component to actually perform that function.

[0231] As used in this article, depending on the context, "meeting the threshold" can mean a value greater than the threshold, greater than or equal to the threshold, less than the threshold, less than or equal to the threshold, equal to the threshold, not equal to the threshold, etc.

[0232] As used in this article, the phrase “at least one of the items” in a list of items refers to any combination of these items, including a single member. As an example, “at least one of a, b, or c” is intended to cover: a, b, c, a+b, a+c, b+c, and a+b+c, as well as any combination with multiple identical elements (e.g., a+a, a+a+a, a+a+b, a+a+c, a+b+b, a+c+c, b+b, b+b+b, b+b+c, c+c, and c+c+c, or any other ordering of a, b, and c).

[0233] No element, action, or instruction used herein should be construed as essential or necessary unless explicitly stated otherwise. Furthermore, as used herein, the articles “a” and “an” are intended to include one or more items and are used interchangeably with “one or more.” Similarly, as used herein, the article “described” is intended to include one or more items mentioned in connection with the article “described” and is used interchangeably with “one or more.” Furthermore, as used herein, the terms “group” and “cluster” are intended to include one or more items and are used interchangeably with “one or more.” If only one item is desired, the phrase “only one” or similar terminology will be used. Moreover, as used herein, the terms “having” and similar terms are intended as open-ended terms that do not limit the elements they modify (e.g., “having” A may also have B). Additionally, the phrase “based on” is intended to mean “based on or otherwise related to” unless otherwise explicitly stated. Furthermore, as used herein, the term “or” is intended to be inclusive when used consecutively and is interchangeable with “and / or” unless otherwise explicitly stated (e.g., if used in conjunction with “either of the two” or “only one of them”). It should be understood that “one or more” is equivalent to “at least one”.

[0234] Although specific combinations of features are set forth in the claims or disclosed in the description, these combinations are not intended to limit the disclosure of various aspects. Many of these features may be combined in ways not specifically stated in the claims or disclosed in the description. The disclosure of various aspects includes each dependent claim in combination with each other claim in the claim set.

Claims

1. A user equipment (UE) for wireless communication, the user equipment (UE) comprising: One or more memory units; and One or more processors, said one or more processors coupled to said one or more memories, said one or more processors being configured individually or in any combination to: Receive reference signals (RS) sent by neighboring cells of the UE; RS measurement reports are sent based at least in part on measurements of the RS received from the neighboring cells; After sending the RS measurement report, an indication associated with the neighboring cell is received. The indication wherein the neighboring cell is to act as the secondary cell of the UE or the neighboring cell is to act as the primary cell of the UE; and Upon receiving the instruction, at least one of the synchronization signal block (SSB) associated with the neighboring cell or the system information block (SIB) associated with the neighboring cell is received.

2. The UE of claim 1, wherein the one or more processors are further configured to cause the UE to: Receive RS measurement configuration associated with the RS; and The RS measurement is performed at least in part based on the RS measurement configuration.

3. The UE of claim 1, wherein the one or more processors are further configured to cause the UE to send an uplink wake-up signal for reception by the neighboring cell, the uplink wake-up signal being sent at least in part based on receiving the indication. The uplink wake-up signal is required to cause the neighboring cell to send at least one of the SSB or the SIB.

4. The UE of claim 3, wherein the uplink wake-up signal comprises at least one of a Physical Random Access Channel (PRACH) communication or a scheduling request (SR).

5. The UE of claim 3, wherein the one or more processors are further configured to cause the UE to receive an uplink wake-up signal configuration associated with the uplink wake-up signal, wherein the uplink wake-up signal is sent according to the uplink wake-up signal configuration.

6. The UE of claim 3, wherein the one or more processors are further configured to cause the UE to receive information identifying a set of neighboring cells to which the UE is permitted to send an uplink wake-up signal, wherein the neighboring cells are included in the set of neighboring cells.

7. The UE of claim 6, wherein the number of neighboring cells in the set of neighboring cells is at least partially based on UE capabilities.

8. The UE of claim 3, wherein the uplink wake-up signal is transmitted at least in part based on determining that the characteristics of the RS satisfy a threshold.

9. The UE of claim 3, wherein the one or more processors are further configured to cause the UE to receive an indication that the UE intends to send the uplink wake-up signal, wherein the uplink wake-up signal is sent at least in part based on the indication that the UE intends to send the uplink wake-up signal.

10. The UE of claim 1, wherein the one or more processors are further configured to cause the UE to perform a random access channel (RACH) procedure with the neighboring cell at least in part based on the SSB or the at least one of the SSB or the SIB.

11. The UE of claim 1, wherein the RS includes at least one of a simplified SSB, a simplified SSB, or a channel state information RS (CSI-RS).

12. A network node for wireless communication, the network node comprising: One or more memory units; and One or more processors, said one or more processors coupled to said one or more memories, said one or more processors being configured individually or in any combination to: Receive reference signal (RS) measurement reports from user equipment (UE), the RS measurement reports being associated with RSs transmitted by neighboring cells of the UE; The neighboring cell is to be either the secondary cell of the UE or the primary cell of the UE, based at least in part on the RS measurement report. as well as Send an instruction to the UE indicating that the neighboring cell should act as the secondary cell of the UE or that the neighboring cell should act as the primary cell of the UE.

13. The network node of claim 12, wherein the one or more processors are further configured to cause the network node to send RS measurement configurations associated with the RS.

14. The network node of claim 12, wherein the one or more processors are further configured to cause the network node to send a transmit activation signal for reception by the neighboring cell. The activation signal is said to cause a neighboring cell to send at least one of a Synchronization Signal Block (SSB) or a System Information Block (SIB) for reception by the UE.

15. The network node of claim 14, wherein the transmission of the activation signal is included in a message associated with activating the neighboring cell as a secondary cell or a message associated with preparing the neighboring cell as a primary cell.

16. The network node of claim 12, wherein the one or more processors are further configured to cause the network node to send an uplink wake-up signal configuration associated with an uplink wake-up signal to be sent by the UE to the neighboring cell.

17. The network node of claim 12, wherein the one or more processors are further configured to cause the network node to send information identifying a set of neighboring cells to which the UE is permitted to send an uplink wake-up signal, wherein the neighboring cells are included in the set of neighboring cells.

18. The network node of claim 17, wherein the number of neighboring cells in the set of neighboring cells is at least partially based on UE capabilities.

19. The network node of claim 12, wherein the one or more processors are further configured to cause the network node to send an indication that the UE is to send an uplink wake-up signal for reception by the neighboring cell.

20. A network node for wireless communication, the network node comprising: One or more memory units; and One or more processors, said one or more processors coupled to said one or more memories, said one or more processors being configured individually or in any combination to: Transmit reference signals (RS) associated with neighboring cells of the user equipment (UE); After transmitting the RS, receive an instruction to transmit at least one of a Synchronization Signal Block (SSB) associated with the neighboring cell or a System Information Block (SIB) associated with the neighboring cell; and The at least one of the SSB or the SIB is sent based at least in part on the instruction.

21. The network node of claim 20, wherein the indication includes an uplink wake-up signal sent by the UE.

22. The network node of claim 21, wherein the uplink wake-up signal comprises at least one of Physical Random Access Channel (PRACH) communication or a scheduling request (SR).

23. The network node of claim 20, wherein the indication includes a transmit activation signal sent by the primary cell of the UE.

24. The network node of claim 20, wherein the one or more processors are further configured to cause the network node to perform a random access channel (RACH) procedure with the UE after transmitting at least one of the SSB or the SIB.

25. A method for wireless communication performed by a user equipment (UE), the method comprising: Receive reference signals (RS) sent by neighboring cells of the UE; RS measurement reports are sent based at least in part on measurements of the RS received from the neighboring cells; After sending the RS measurement report, an indication associated with the neighboring cell is received. The indication wherein the neighboring cell is to act as the secondary cell of the UE or the neighboring cell is to act as the primary cell of the UE; and Upon receiving the instruction, at least one of the synchronization signal block (SSB) associated with the neighboring cell or the system information block (SIB) associated with the neighboring cell is received.

26. The method according to claim 25, further comprising: Receive the RS measurement configuration associated with the RS; as well as The RS measurement is performed at least in part based on the RS measurement configuration.

27. The method of claim 25, further comprising: An uplink wake-up signal is sent for reception by the neighboring cell, the uplink wake-up signal being sent at least in part based on receiving the indication. The uplink wake-up signal is required to cause the neighboring cell to send at least one of the SSB or the SIB.

28. The method of claim 27, wherein the uplink wake-up signal comprises at least one of a Physical Random Access Channel (PRACH) communication or a scheduling request (SR).

29. The method of claim 27, further comprising: Receive an uplink wake-up signal configuration associated with the uplink wake-up signal, wherein the uplink wake-up signal is sent according to the uplink wake-up signal configuration.

30. The method of claim 27, further comprising: The system receives information identifying a set of neighboring cells to which the UE is permitted to send uplink wake-up signals, wherein the neighboring cells are included in the set of neighboring cells.

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