Techniques for reference signals for on-demand broadcast communications

Abstract

Various aspects of this disclosure relate generally to wireless communication. In some aspects, a user equipment (UE) can receive an SSB configuration for a synchronization signal block (SSB) carrying first synchronization information. The UE can receive a reference signal indicating a simplified version of second synchronization information relative to the first synchronization information. The UE can measure the reference signal to obtain measurement information. The UE can transmit communication in association with the measurement information. The UE can receive an SSB based on the transmission of communication, according to the SSB configuration and the measurement of the reference signal. Numerous other aspects are described.

Description

[0001] Cross-reference to related applications

[0002] This patent application claims priority to U.S. Patent Application No. 18 / 505,605, filed November 9, 2023, entitled “TECHNIQUES FOR A REFERENCESIGNAL FOR ON-DEMAND BROADCAST COMMUNICATIONS”, 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

[0003] All aspects of this disclosure relate to wireless communication in general, and more particularly to techniques, apparatus and methods for reference signals used in on-demand broadcast communication.

[0004] Related technical descriptions

[0005] 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.

[0006] These 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 (which can also be referred to as 5G) is part of the continuous evolution of mobile broadband released by the 3rd Generation Partnership Project (3GPP). NR (and other mobile broadband evolutions besides NR) can be designed to better support the deployment of Internet of Things (IoT) and degraded-capacity devices, industrial connectivity, millimeter-wave (mmWave) expansion, licensed and unlicensed spectrum access, non-terrestrial network (NTN) deployment, 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 made, and other radio access technologies (such as 6G) can be introduced to further advance mobile broadband evolution. Summary of the Invention

[0007] Some aspects described herein relate to a user equipment (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 cause the UE to receive an SSB configuration for a synchronization signal block (SSB) carrying first synchronization information. The one or more processors may be configured to cause the UE to receive a reference signal indicating second synchronization information simplified relative to the first synchronization information. The one or more processors may be configured to cause the UE to measure the reference signal to obtain measurement information. The one or more processors may be configured to cause the UE to transmit communication in association with the measurement information. The one or more processors may be configured to cause the UE to: receive the SSB based on the transmission of the communication, according to the SSB configuration and the measurement of the reference signal.

[0008] 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 cause the network node to transmit an SSB configuration for an SSB carrying first synchronization information. The one or more processors may be configured to cause the network node to transmit a reference signal indicating second synchronization information simplified relative to the first synchronization information. The one or more processors may be configured to cause the network node to receive communication in association with measurement information of the reference signal. The one or more processors may be configured to cause the network node to transmit an SSB based on the reception of the communication, wherein the SSB is based on the SSB configuration and the measurement information.

[0009] Some aspects described herein relate to a method of wireless communication performed by a UE. The method may include receiving an SSB configuration for an SSB carrying first synchronization information. The method may include receiving a reference signal indicating second synchronization information simplified relative to the first synchronization information. The method may include measuring the reference signal to obtain measurement information. The method may include transmitting communication in association with the measurement information. The method may include receiving an SSB based on the transmission of the communication, according to the SSB configuration and the measurement of the reference signal.

[0010] Some aspects described herein relate to a method of wireless communication performed by a network node. The method may include transmitting an SSB configuration for an SSB carrying first synchronization information. The method may include transmitting a reference signal indicating a simplified second synchronization information relative to the first synchronization information. The method may include receiving communication associated with measurement information of the reference signal. The method may include transmitting an SSB based on the reception of the communication, wherein the SSB is configured according to the SSB configuration and the measurement information.

[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 an SSB configuration for an SSB carrying first synchronization information. When executed by one or more processors of the UE, the set of instructions enables the UE to receive a reference signal indicating second synchronization information simplified relative to the first synchronization information. When executed by one or more processors of the UE, the set of instructions enables the UE to measure the reference signal to obtain measurement information. When executed by one or more processors of the UE, the set of instructions enables the UE to transmit communication in association with the measurement information. When executed by one or more processors of the UE, the set of instructions enables the UE to: receive an SSB based on the transmission of the communication, according to the SSB configuration and the measurement of the reference signal.

[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 transmit an SSB configuration for an SSB carrying first synchronization information. When executed by one or more processors of the network node, the set of instructions enables the network node to transmit a reference signal indicating a simplified second synchronization information relative to the first synchronization information. When executed by one or more processors of the network node, the set of instructions enables the network node to receive communication in association with measurement information of the reference signal. When executed by one or more processors of the network node, the set of instructions enables the network node to transmit an SSB based on the reception of the communication, wherein the SSB is configured according to the SSB and the measurement information.

[0013] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include components for receiving an SSB configuration for an SSB carrying first synchronization information. The apparatus may include components for receiving a reference signal indicating second synchronization information simplified relative to the first synchronization information. The apparatus may include components for measuring the reference signal to obtain measurement information. The apparatus may include components for transmitting communication in association with the measurement information. The apparatus may include components for receiving an SSB based on the transmission of the communication, according to the SSB configuration and the measurement of the reference signal.

[0014] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include components for transmitting an SSB configuration for an SSB carrying first synchronization information. The apparatus may include components for transmitting a reference signal indicating second synchronization information simplified relative to the first synchronization information. The apparatus may include components for receiving communication in association with measurement information of the reference signal. The apparatus may include components for transmitting an SSB based on the reception of the communication, wherein the SSB is configured according to the SSB and the measurement information.

[0015] Various 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.

[0016] 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

[0017] 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.

[0018] Figure 1 This is a diagram illustrating an example of a wireless communication network according to the present disclosure.

[0019] Figure 2 This is a diagram illustrating an example network node communicating with an example UE in a wireless network.

[0020] Figure 3 This is a diagram illustrating an example decomposed base station architecture according to this disclosure.

[0021] Figure 4 This is a diagram illustrating an example of a synchronization signal (SS) hierarchy according to this disclosure.

[0022] Figure 5 This is a diagram illustrating an example of an SS block (SSB) according to this disclosure.

[0023] Figure 6 This is a diagram illustrating an example of a candidate SSB location according to this disclosure.

[0024] Figure 7 This is a diagram illustrating an example of network energy saving according to this disclosure.

[0025] Figure 8 This is a diagram illustrating an example of multi-carrier operation for on-demand communication according to the present disclosure.

[0026] Figure 9 This is a diagram illustrating an example of a reference signal associated with a broadcast-on-demand communication according to this disclosure.

[0027] Figures 10A to 10E This is a diagram illustrating an example format of a reference signal for on-demand broadcast communication according to this disclosure.

[0028] Figures 11A to 11BThis is an illustration of an example format of a reference signal for on-demand broadcast communication according to this disclosure.

[0029] Figure 12 This is a diagram illustrating an example of the location of a reference signal used for on-demand broadcast communication in accordance with this disclosure.

[0030] Figure 13 This is a diagram illustrating an example of timing associated with a reference signal used for on-demand broadcast communication according to this disclosure.

[0031] Figure 14 This is a diagram illustrating an example process performed, for example, at the UE or at a device of the UE, according to this disclosure.

[0032] Figure 15 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.

[0033] Figure 16 This is a diagram of an example device for wireless communication according to the present disclosure.

[0034] Figure 17 This is a diagram of an example device for wireless communication according to the present disclosure. Detailed Implementation

[0035] 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.

[0036] 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.

[0037] In some examples, network nodes may send one or more broadcast communications (e.g., synchronization signal blocks (SSBs), system information, or system information block (SIB) type 1 (SIB1)) "on demand." For example, a network node may send an SSB or SIB1 based on, in response to, or otherwise associated with receiving a request from a user equipment (UE) and / or based on, in response to, or otherwise associated with secondary cell (SCell) activation, etc. In such examples, the communication may be referred to as "on demand" communication (e.g., on demand SSB or on demand SIB). Sending broadcast communications on demand saves network nodes energy and / or power that would otherwise be used to always send broadcast communications according to the broadcast communication configuration.

[0038] As described elsewhere in this document, a UE may require time-domain tracking information, frequency-domain tracking information, and / or path loss information, etc., for broadcast communications (e.g., SSB or SIB) transmitted in response to triggers such as uplink wake-up signal (WUS) communications or network triggers, etc. However, for UEs operating in Radio Resource Control (RRC) idle mode or RRC inactive mode, the UE may not have access to such information for non-anchor cells. Additionally, for UEs configured using carrier aggregation, the UE may not have access to such information for SCells. In some examples, non-anchor cells or SCells may transmit reference signals to provide domain tracking information, frequency-domain tracking information, and / or path loss information, etc., for broadcast communications on demand. However, the timing and / or content of the reference signals are not defined. Additionally, using known reference signals (such as SSBs) for this purpose may consume significant energy and / or power resources of the cell, thereby negating any benefit of energy-saving operations performed by the cell (e.g., broadcast-on-demand transmission operations).

[0039] Various aspects as a whole relate to reference signals used for on-demand broadcast communications. Some aspects more specifically relate to defining synchronization information carried by the reference signal. In some aspects, the synchronization information carried by the reference signal may be concise information (e.g., less information) relative to the synchronization information carried by the SSB. For example, the reference signal may indicate symbol timing information and / or the identifier of the cell through which the reference signal is transmitted (e.g., Physical Cell Identifier (PCI)). Additionally, the reference signal may indicate beam information (e.g., the index of the reference signal) and / or time slot timing information. For example, the reference signal may include only a primary synchronization signal (PSS) and a secondary synchronization signal (SSS). In some aspects, the reference signal may also include a third-level synchronization signal (TSS) that indicates the index of the reference signal and enables the UE to determine the time slot timing information. In some aspects, the reference signal may not include the Physical Broadcast Channel (PBCH).

[0040] In some aspects, the reference signal may use timing that is otherwise defined or fixed for the SSB. For example, an SSB location may be defined for the SSB (e.g., via a wireless communication standard such as the 3rd Generation Partnership Project (3GPP)). A network node may transmit the reference signal in at least a portion of the SSB location, and a UE may receive the reference signal in at least a portion of the SSB location. For example, time-domain locations (e.g., OFDM symbols) may be defined for portions (e.g., PSS, SSS, and / or TSS) of one or more reference signals within the SSB location. In some aspects, the locations of multiple reference signals may be defined within a single SSB location (e.g., because the reference signal includes simplified synchronization information). In some aspects, the reference signal and on-demand broadcast communication may be transmitted via the same frequency. In some aspects, the timing of the measurement window for on-demand broadcast communication may be relative to the measurement window for the reference signal.

[0041] 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, by transmitting a reference signal, the described techniques can be used to provide time-domain tracking information, frequency-domain tracking information, and / or path loss information, etc., for on-demand broadcast communications. In some examples, by including streamlined synchronization information (e.g., relative to synchronization information typically included in the SSB), the described techniques can be used to ensure that the UE is provided with sufficient information for on-demand broadcast communications, while also saving resources (e.g., network resources and / or power resources) that would otherwise be used to transmit complete synchronization information (e.g., all synchronization information typically included in the SSB).

[0042] In some aspects, by using (e.g., reusing) timing that is otherwise defined or fixed for an SSB, the described techniques can be used to utilize time resources for a reference signal that can be otherwise allocated for SSBs transmitted on demand. This improves the efficiency of network resource utilization. In some aspects, by including a TSS in the reference signal, the described techniques can be used to provide the UE with beam information and / or time slot timing information. This can improve the performance of WUS transmitted by the UE (e.g., because the UE can determine the time slot timing for the cell through which it transmits the WUS and the spatial domain information for the WUS). In some aspects, by transmitting the reference signal and on-demand broadcast communications via the same frequency, the complexity and / or latency associated with the UE searching for on-demand broadcast communications (e.g., searching for an SSB or SIB) can be reduced (e.g., because the UE can know the frequency through which it transmits the on-demand broadcast communications).

[0043] 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 program released by 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).

[0044] 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.

[0045] Figure 1 This 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).

[0046] 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, 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.

[0047] 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, 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.

[0048] 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).

[0049] 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.

[0050] 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.

[0051] 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.

[0052] 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.

[0053] 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)). A 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).

[0054] 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).

[0055] 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.

[0056] 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 (RBs), and / or resource elements (REs)), 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). UE 120 may be configured using both uplink and downlink BWPs (where the uplink and downlink BWPs 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.

[0057] 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.

[0058] 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.

[0059] 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.

[0060] 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.

[0061] 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.

[0062] 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).

[0063] 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.

[0064] 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.

[0065] 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.

[0066] 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).

[0067] In some aspects, UE 120 may include a communication manager 140. As described in more detail elsewhere herein, the communication manager 140 may receive an SSB configuration for an SSB carrying first synchronization information; receive a reference signal indicating second synchronization information simplified relative to the first synchronization information; and measure the reference signal to obtain measurement information; transmit communication in association with the measurement information; and receive an SSB based on the transmission of the communication, according to the SSB configuration and the measurement of the reference signal. Additionally or alternatively, the communication manager 140 may perform one or more other operations described herein.

[0068] In some aspects, network node 110 may include communication manager 150. As described in more detail elsewhere herein, communication manager 150 may send an SSB configuration for an SSB carrying first synchronization information; send a reference signal indicating a second synchronization information simplified relative to the first synchronization information; and receive communication in association with measurement information of the reference signal; and send an SSB based on the receipt of the communication, wherein the SSB is based on the SSB configuration and the measurement information. Additionally or alternatively, communication manager 150 may perform one or more other operations described herein.

[0069] As indicated above, Figure 1 This is provided as an example. Other examples are available with reference to [the relevant information]. Figure 1 The examples described are different.

[0070] Figure 2 This is a diagram illustrating an example network node 110 communicating with example UE 120 in a wireless network.

[0071] 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.

[0072] 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.

[0073] 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 first set of processors and the second set of processors 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.

[0074] 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 to be transmitted to UE 120 on the downlink (e.g., including encoding the data) based on the MCS selected for UE 120 to generate 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)).

[0075] The TX MIMO processor 216 can perform space processing (e.g., pre-decoding) on ​​data symbols, control symbols, overhead symbols, and / or reference symbols where applicable, and can output a set of symbol streams (e.g., TA set of output symbol streams is provided to modem 232. For example, each output symbol stream may be provided to a corresponding modulator component (shown as MOD) of modem 232. Each modem 232 may 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 may 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 may transmit the set of downlink signals (e.g., [missing information]) together via a set of corresponding antennas 234. T (One downlink signal).

[0076] 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.

[0077] 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.

[0078] 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 resources and / or frequency-domain resources that UE 120 may use to transmit and / or receive communication using RRC configuration (e.g., semi-static configuration), for example, to perform semi-persistent scheduling (SPS) or to configure configuration grant (CG) for UE 120.

[0079] 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.

[0080] 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 perform network control signaling, etc. Communication unit 244 may include transceivers and / or interfaces, such as network interfaces.

[0081] 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.

[0082] 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 receive the set of downlink signals (e.g., R Each received signal is provided to a set of modems 254. For example, each received signal may be provided to a corresponding demodulator component (shown as DEMOD) of modem 254. Each modem 254 may use the corresponding demodulator component to condition (e.g., filter, amplify, down-convert, and / or digitize) the received signal to obtain an input sample. Each modem 254 may 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 may obtain the received symbols from the set of modems 254, may perform MIMO detection on the received symbols where applicable, and may provide the detected symbols. Receiver processor 258 may process (e.g., decode) the detected symbols, may provide the decoded data for UE 120 to data sink 260 (which may include data pipelines, data queues, and / or applications executed on UE 120), and may provide the decoded control information and system information to controller / processor 280.

[0083] 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.

[0084] Transmit processor 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 transmit processor 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 perform spatial processing (e.g., pre-decoding) on ​​data symbols, control symbols, overhead symbols, and / or reference symbols where applicable, and may provide an output symbol stream set (e.g., ...) to the assembly of modems 254. U 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 the corresponding modulator component to process (e.g., convert to analog, amplify, filter, and / or upconvert) the output sample stream to obtain an uplink signal.

[0085] Modems 254a to 254u can transmit uplink signal sets (e.g., via a set of corresponding antennas 252) R One uplink signal or UUplink signals may include UCI communication, MAC-CE communication, RRC communication, or another type of uplink communication. Uplink signals may be transmitted on PUSCH, PUCCH, and / or another type of uplink channel. Uplink signals may carry one or more TBs of data. Sidelink data and control transmission (i.e., transmission directly between two or more UEs 120) may typically use 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).

[0086] 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.

[0087] 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.

[0088] 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.

[0089] 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).

[0090] In some respects, the controller / processor 280 may be a component of a processing system. A processing system can typically be a system or a series of machines or components that receive input and process it to produce output (which may be passed to other systems or components, such as UE 120). For example, the processing system of UE 120 may be a system that includes various other components or sub-components of UE 120.

[0091] The processing system of UE 120 can interface with one or more other components of UE 120, and can process information (such as input or signals) received from one or more other components, or can output information to one or more other components. For example, the chip or modem of UE 120 may include: a processing system, a first interface for receiving or acquiring information, and a second interface for outputting, transmitting, or providing information. In some examples, the first interface may be an interface between the processing system of the chip or modem and a receiver, allowing UE 120 to receive information or signal input and to pass information to the processing system. In some examples, the second interface may be an interface between the processing system of the chip or modem and a transmitter, allowing UE 120 to transmit information output from the chip or modem. Those skilled in the art will readily recognize that the second interface may also acquire or receive information or signal input, and the first interface may also output, transmit, or provide information.

[0092] In some respects, the controller / processor 240 may be a component of a processing system. A processing system can typically be a system or a series of machines or components that receive input and process it to produce output (which may be passed to other systems or components, such as network node 110). For example, the processing system of network node 110 may be a system that includes various other components or sub-components of network node 110.

[0093] The processing system of network node 110 can interface with one or more other components of network node 110, and can process information (such as input or signals) received from one or more other components, or can output information to one or more other components. For example, the chip or modem of network node 110 may include: a processing system, a first interface for receiving or acquiring information, and a second interface for outputting, transmitting, or providing information. In some examples, the first interface may be an interface between the processing system of the chip or modem and a receiver, allowing network node 110 to receive information or signal input and to pass information to the processing system. In some examples, the second interface may be an interface between the processing system of the chip or modem and a transmitter, allowing network node 110 to transmit information output from the chip or modem. Those skilled in the art will readily recognize that the second interface may also acquire or receive information or signal input, and the first interface may also output, transmit, or provide information.

[0094] 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.

[0095] 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.

[0096] Each component of the disassembled 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 may be coupled to one or more interfaces for receiving or transmitting signals, such as data or information, via wired or wireless transmission media.

[0097] 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.

[0098] 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.

[0099] 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 and / or 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.

[0100] In some respects, 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 may 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 tune 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).

[0101] 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 reference signals for on-demand broadcast communications, 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 reference signals for on-demand broadcast communications, as described in more detail elsewhere herein. Figure 2 Any other component (or combination of components), CU 310, DU 330, or RU 340 may execute or instruct, for example Figure 14 Process 1400 Figure 15 The operation of process 1500 or other processes as described herein (alone or in combination with one or more other processors). 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 to be executed 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 14 Process 1400 Figure 15The process 1500 or other processes as described herein (alone or in combination with one or more other processors). In some examples, the execution instructions may include run instructions, translation instructions, compilation instructions, and / or interpretation instructions, etc.

[0102] In some aspects, UE 120 includes components for receiving an SSB configuration for an SSB carrying first synchronization information; components for receiving a reference signal indicating second synchronization information simplified relative to the first synchronization information; and / or components for measuring the reference signal to obtain measurement information; components for transmitting communication in association with the measurement information; and / or components for receiving an SSB based on the transmission of the communication, according to the SSB configuration and the measurement of the reference signal. Components for UE 120 to perform the operations described herein may include, for example, one or more of 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.

[0103] In some aspects, network node 110 includes components for transmitting an SSB configuration for an SSB carrying first synchronization information; components for transmitting a reference signal indicating second synchronization information simplified relative to the first synchronization information; and / or components for receiving communication in association with measurement information of the reference signal; and / or components for transmitting an SSB based on the reception of the communication, wherein the SSB is configured according to the SSB and the measurement information. Components for enabling network node 110 to perform the operations described herein may include, for example, one or more of 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.

[0104] Figure 4 This is a diagram illustrating example 400 of the synchronization signal (SS) hierarchy according to this disclosure. Figure 4 As shown, the SS hierarchy may include one or more SS blocks (SSBs) 415 (shown as SSB 0 to SSB 415). M -1). In some respects, different SSB 415s can perform beamforming differently (e.g., use different beams for transmission) and can be used for cell search, cell acquisition, beam management and / or beam selection (e.g., as part of the initial network access procedure). M The SSB 415 can be periodically (such as every) by a wireless node (e.g., network node 110). X Send in milliseconds, such as Figure 4As shown.

[0105] In some aspects, SSB 415 may include resources carrying a primary synchronization signal (PSS) 420, a secondary synchronization signal (SSS) 425, and / or a physical broadcast channel (PBCH) 430. In some aspects, multiple SSBs 415 may be transmitted, and the PSS 420, SSS 425, and / or PBCH 430 may be identical across each SSB 415. In some aspects, the length of SSB 415 may be at least four symbols (e.g., OFDM symbols), where each symbol carries one or more of the following: PSS 420 (e.g., occupying one symbol), SSS 425 (e.g., occupying one symbol), and / or PBCH 430 (e.g., occupying two symbols). In some aspects, SSB 415 may be referred to as an SS / PBCH block. In some aspects, SSB 415 (e.g., PSS 420 and SSS 425) may be frequency-division multiplexed with PBCH 430.

[0106] In some respects, the notation of SSB 415 is consecutive, such as... Figure 4 As shown. In some respects, the symbols of SSB 415 are discontinuous. Similarly, in some respects, one or more SSB 415s may be transmitted in continuous radio resources (e.g., continuous symbols) during one or more time slots. Additionally or alternatively, one or more SSB 415s may be transmitted in discontinuous radio resources.

[0107] In some aspects, SSB 415 may include an SSB index that corresponds to a beam used to carry SSB 415. For example, the SSB index may be indicated via PBCH 430. UE 120 may use different receive (Rx) beams to monitor and / or measure SSB 415 during the initial network access procedure and / or cell search procedure, etc. Based at least in part on monitoring and / or measurement, UE 120 may (e.g., directly or via one or more other network nodes) indicate to network node 110 one or more SSBs 415 with optimal signal parameters (e.g., Reference Signal Received Power (RSRP) parameters). Network node 110 and UE 120 may use the indicated one or more SSBs 415 to select one or more beams to be used for communication between network node 110 and UE 120 (e.g., for a Random Access Channel (RACH) procedure). Additionally or alternatively, UE 120 may use SSB 415 and / or SSB indexes to determine cell timing for a cell (e.g., serving cell) via which it receives SSB 415. For example, UE 120 may use SSB indexes of one or more SSB 415s to determine slot timing.

[0108] In some examples, network node 110 may transmit one or more SSBs 415 “on demand”. For example, network node 110 may transmit an SSB based on, in response to, or otherwise associated with receiving a request from UE 120 (e.g., via uplink WUS) and / or based on, in response to, or otherwise associated with secondary cell (SCell) activation, etc. In such examples, SSB 415 may be referred to as an “on demand” SSB. Transmitting SSBs on demand saves network node 110 energy and / or power that would otherwise be used to always transmit SSB 415 according to the configuration of SSB 415.

[0109] As indicated above, Figure 4 This is provided as an example. Other examples are available with reference to [the relevant information]. Figure 4 The examples described are different.

[0110] Figure 5 This is a diagram illustrating Example 500 according to SSB 505 of this disclosure. For example... Figure 5 As shown, SSB 505 can be combined as follows Figure 4 Similar arrangements described include PSS, SSS, and PBCH. A PSS may occupy one OFDM symbol of SSB 505 (e.g., shown as symbol 1). An SSS may occupy one OFDM symbol of SSB 505 (e.g., shown as symbol 2). A PBCH may occupy two or more OFDM symbols of SSB 505 (shown as symbols 2, 3, and 4).

[0111] The subcarrier spacing (SCS) of the PSS and SSS can vary based on the frequency range. For example, for frequency ranges below 6 GHz, the SCS of the PSS and / or SSS can be 15 kHz or 30 kHz. For frequency ranges above 6 GHz, the SCS of the PSS and / or SSS can be 120 kHz or 240 kHz.

[0112] PSS, SSS, and PBCH can be time-division multiplexed (TDM) within consecutive OFDM symbols of SSB 505 (e.g., for single-beam and multi-beam scenarios). The time-domain mapping to consecutive OFDM symbols can follow the patterns PSS, PBCH, SSS+PBCH, PBCH. For example, as... Figure 5 As shown, symbol 1 may include one or more resource blocks (RBs) carrying a PSS. Symbol 2 may include one or more RBs carrying a PBCH. Symbol 3 may include one or more RBs carrying an SSS and one or more RBs carrying a PBCH. Symbol 4 may include one or more RBs carrying a PBCH. The location of consecutive symbols (e.g., within a time slot) may vary for different SCSs.

[0113] The transmission of SSBs within an SS burst can be limited to a 5-millisecond window (e.g., regardless of the periodicity of the SS burst set). Within the 5-millisecond window, there may be an allowable (e.g., maximum) number (e.g., L Candidate SSB locations. For example, for a carrier frequency range up to 3 GHz, L The value can be 4 (for example, up to 4 candidate SSB locations can exist within a 5-millisecond window). For carrier frequency ranges from 3 GHz to 6 GHz, L The value can be 8 (for example, up to 8 candidate SSB locations can exist within a 5-millisecond window). For the carrier frequency range from 6 GHz to 52.6 GHz, L The value can be 64 (for example, there can be up to 64 candidate SSB locations within a 5-millisecond window).

[0114] As indicated above, Figure 5 This is provided as an example. Other examples are available with reference to [the relevant information]. Figure 5 The examples described are different.

[0115] Figure 6 This is a diagram illustrating an example of a candidate SSB location according to this disclosure. For example... Figure 6 As shown, a wireless communication network (e.g., wireless communication network 100) may use frame structures such as Frequency Division Duplex (FDD) from telecommunications systems such as LTE or NR. The transmission timeline for each of the downlink and uplink can be divided into units of radio frames (sometimes called frames). Each radio frame may have a predetermined duration (e.g., 10 milliseconds (ms)) and may be divided into... Z ( Z ≥ 1) subframes (e.g., those with indices 0 to 1) Z -1) is a set. Each subframe may have a predetermined duration (e.g., 1 ms) and may include a set of time slots (e.g., 2 per subframe). m One time slot, of which m This is an index used to transmit a set of parameters, such as 0, 1, 2, 3, 4, or another number. Each time slot may include... S One symbol period (e.g., S A set of OFDM symbols. For example, each time slot may include fourteen symbol periods, seven symbol periods, or another number of symbol periods. A subframe may include two time slots (e.g., when...). m In the example where (= 1), the subframe can include 2 S 1 symbol period, of which 2 in each subframe S Each symbol period can be assigned an index from 0 to 2. S -1.

[0116] For example, as indicated by reference numeral 600 in the accompanying figure, example candidate SSB locations are depicted for OFDM symbols with a 15 kHz SCS. Figure 6 As shown, candidate locations for SSB 0 can be symbols 2 through 5 of the time slot. Candidate locations for SSB 1 can be symbols 8 through 11 of the time slot. Example candidate SSB locations are depicted, for example, for an OFDM symbol with a 30 kHz SCS, as indicated by reference numeral 605. Figure 6 As shown, due to the higher SCS, more candidate SSB locations can be included in each subframe (e.g., two time slots may exist in each subframe instead of one time slot in the example indicated by reference numeral 600). For example, candidate locations for SSB 0 could be symbols 4 to 7 of the first time slot. Alternatively, candidate locations for SSB 0 could be symbols 2 to 5 of the first time slot. Candidate locations for SSB 1 could be symbols 8 to 11 of the first time slot (with or without time gaps between candidate locations for SSB 0). Candidate locations for SSB 2 could be symbols 2 to 5 of the second time slot, with or without time gaps between candidate locations for SSB 3. Candidate locations for SSB 3 could be symbols 6 to 9 of the second time slot (e.g., without time gaps). Alternatively, candidate locations for SSB 3 could be symbols 8 to 11 of the second time slot (e.g., with time gaps).

[0117] When using other SCSs, alternative candidate locations for SSBs can be defined, for example, by wireless communication standards (e.g., 3GPP) or otherwise fixed. For example, for an OFDM symbol using a 120 kHz SCS, two consecutive time slots can include up to four SSBs. For an OFDM symbol using a 240 kHz SCS, two consecutive time slots can include up to eight SSBs.

[0118] As indicated above, Figure 6 This is provided as an example. Other examples are available with reference to [the relevant information]. Figure 6 The examples described are different.

[0119] Figure 7 This is a diagram illustrating example 700 of network energy saving according to this disclosure.

[0120] One potential technique for improving energy efficiency in the RAN could be enabling cell discontinuous reception (DRX) or discontinuous transmission (DTX). For example, network node 110 could send some broadcast communication (e.g., SSB or SIB, such as SIB1) in response to detecting an uplink WUS. In some examples, the uplink WUS could be referred to as the cell WUS (C-WUS).

[0121] like Figure 7As shown, UE 120 is configured using periodic WUS timing 705. WUS timing 705 may include radio resources available for UE 120 to transmit uplink WUS. In the first operation 710, if network node 110 does not detect WUS during WUS timing 705, network node 110 may avoid transmitting one or more broadcast communications (in... Figure 7 (Simplified as SSB). UE 120 may send WUS 715 to network node 110 during WUS timing 705. In second operation 720, if network node 110 detects WUS 715 during WUS timing 705, network node 110 may send one or more broadcast communications, such as SSB. For example, network node 110 may send SSB, SIB1 (sometimes referred to as Residual Minimal System Information (RMSI)), and / or serve UE 120 for uplink data reception, etc. Communications sent to UE 120 based on, in response to, or otherwise associated with the reception of WUS 715 (e.g., SSB, SIB, or another downlink communication) may be referred to as “on-demand” communications.

[0122] As indicated above, Figure 7 This is provided as an example. Other examples are available with reference to [the relevant information]. Figure 7 The examples described are different.

[0123] Figure 8 This is a diagram illustrating example 800 of multi-carrier operation for on-demand communication according to the present disclosure.

[0124] like Figure 8 As shown, a UE can communicate with one or more network nodes via an anchor cell and / or one or more non-anchor cells. An "anchor cell" (or "anchor carrier") refers to a cell that provides initial network access to the UE (e.g., in addition to providing data communications). A "non-anchor cell" (or "non-anchor carrier") refers to a cell that does not provide initial network access but only provides data communications. For example, a UE can perform cell access procedures and / or receive system information (SI) via an anchor cell. Non-anchor cells can be configured to perform one or more power-saving operations, such as avoiding sending broadcast communications (e.g., SSB, SI, and / or paging messages), unless triggered to do so (e.g., on demand, as described in more detail elsewhere herein).

[0125] In some examples, carrier aggregation can be configured for the UE. Carrier aggregation is a technique that enables two or more component carriers (CCs, sometimes referred to as carriers) to be combined (e.g., combined into a single channel) for a single UE to enhance data capacity. Carriers in the same or different frequency bands can be combined. Additionally or alternatively, contiguous or discontinuous carriers can be combined. Network nodes can configure carrier aggregation for the UE (such as in RRC messages, DCI and / or other signaling messages). In carrier aggregation, the UE can be configured using a primary carrier or primary cell (PCell) and one or more secondary carriers or secondary cells (SCells). In some examples, the PCell may carry control information (e.g., downlink control information and / or scheduling information) for scheduling data communications on one or more SCells (this may be referred to as cross-carrier scheduling). In some examples, the cell (e.g., PCell or SCell) may carry control information for scheduling data communications on that cell (this may be referred to as self-carrier scheduling or carrier self-scheduling).

[0126] For example, UE can Figure 8 The Scell ​​shown is operating in RRC idle mode or RRC inactive mode when it is not configured. In some examples, a non-anchor cell can be configured as a PCell (e.g., when carrier aggregation is not configured). Figure 8 As shown, the UE may receive one or more SSBs 805 via the anchor cell. Additionally, the UE may receive SI 810 via the anchor cell. SI 810 may include Minimum System Information (MSI) (e.g., Master Information Block (MIB) and / or SSB), RMSI (e.g., SIB1), and / or other SIs (OSI), etc. In some examples, SI 810 may include WUS configuration (e.g., indicating one or more time / frequency opportunities available for the UE to transmit C-WUS). In some examples, SI 810 may include SIs for non-anchor cells. As indicated by reference numeral 815, the UE may perform a RACH procedure to establish a connection with the anchor cell.

[0127] like Figure 8As shown, the UE can receive a reference signal (RS) 820 via a non-anchor cell. RS 820 can be a reference signal associated with providing time-domain tracking, frequency-domain tracking, and / or path loss measurements for use by the UE in WUS transmission. In some examples, RS may be referred to by different names (e.g., different types of reference signals), such as DRS. For example, for a UE operating in RRC idle mode or RRC inactive mode, time-domain tracking information, frequency-domain tracking information, and / or path loss information, etc., may not be available for transmission to a non-anchor cell. Therefore, RS 820 can be used to provide such information to the UE. The UE can utilize WUS timing 825 for configuration (e.g., via SI 810). However, based on the measurements of RS 820, the UE can determine not to transmit C-WUS via WUS timing 825 (e.g., as by...). Figure 8 (Indicated by the dashed line in the diagram). Therefore, non-anchor cells (e.g., network nodes that support non-anchor cells) can avoid sending on-demand broadcast communications 830 (e.g., SSB or SIB1). For example, based on the absence of received or detected C-WUS, non-anchor cells can remain in a sleep or inactive state to conserve energy and / or power.

[0128] The UE can receive RS 835 via a non-anchor cell. In a similar manner as described above, the UE can utilize WUS timing 840 for configuration. Based on the measurement of RS 835, the UE can transmit C-WUS via WUS timing 840. Based on the received C-WUS, the non-anchor cell can transmit on-demand broadcast communication 845 (e.g., SSB or SIB1). Based on the received on-demand broadcast communication 845, the UE can perform RACH procedure 850 via the non-anchor cell (e.g., to establish a communication connection with the non-anchor cell). For example, the UE can transition to RRC connection mode based on performing RACH procedure 850. In some examples, the UE can be configured based on performing RACH procedure 850 (e.g., based on establishing a communication connection with a non-anchor cell or PCell). Figure 8 The SCell depicted in the text.

[0129] In some examples, such as for SCells or in carrier aggregation scenarios, on-demand broadcast communications can be sent based on or in response to network coordination (e.g., rather than in response to UE triggering, such as C-WUS transmission). For example, a UE may receive RS 855 via an SCell. The UE may measure RS 855. The UE may send a measurement report indicating the measurement of RS 855 to a non-anchor cell (e.g., a PCell) or an anchor cell. The UE may indicate RS measurements for other SCells via this measurement report (or via other measurement reports). A network node (e.g., one that supports a PCell or anchor cell) may determine one or more SCells to which it will send on-demand broadcast communications 860 for the UE. For example, a network node may evaluate RS measurements and determine one or more optimal SCells for the UE. For example, the UE may determine, based on a network node, that an SCell should send on-demand SSB 860 and / or, based on a network node, cause the SCell to send on-demand SSB 860, and receive on-demand SSB 860 via an SCell.

[0130] As described elsewhere in this document, a UE may require time-domain tracking information, frequency-domain tracking information, and / or path loss information, etc., for broadcast communications (e.g., SSB or SI) to be transmitted in response to triggers such as C-WUS communication or network triggers. However, for UEs operating in RRC idle mode or RRC inactive mode, the UE may not have access to such information for non-anchor cells. Additionally, for UEs configured using carrier aggregation, the UE may not have access to such information for SCells. In some examples, non-anchor cells or SCells may transmit reference signals to provide time-domain tracking information, frequency-domain tracking information, and / or path loss information, etc., for broadcast communications on demand. However, the timing and / or content of the reference signals are not defined. Additionally, using known reference signals (such as SSBs) for this purpose may consume significant energy and / or power resources of the cell, thereby negating any benefit of energy-saving operations performed by the cell (e.g., broadcast-on-demand transmission operations).

[0131] As indicated above, Figure 8 This is provided as an example. Other examples are available with reference to [the relevant information]. Figure 8 The examples described are different.

[0132] Figure 9 This is a diagram of example 900 associated with a reference signal used for on-demand broadcast communication according to this disclosure. Figure 9 As shown, one or more network nodes 110 (e.g., base stations, CUs, DUs, and / or RUs) can communicate with UE 120. In some aspects, network node 110 and UE 120 can be part of a wireless network (e.g., wireless communication network 100). UE 120 and network node 110 can... Figure 9 The operation shown has been performed with a wireless connection already established.

[0133] In some aspects, one or more network nodes 110 may be associated with an anchor cell and one or more non-anchor cells of UE 120. For example, one or more network nodes 110 may support an anchor cell. In some aspects, one or more network nodes 110 may support one or more non-anchor cells. In some aspects, one or more network nodes 110 may support a PCell and / or one or more SCells configured for UE 120.

[0134] In some respects, this document describes actions performed by network node 110 that can be performed by multiple different network nodes. For example, configuration actions can be performed by a first network node (e.g., CU or DU), and radio communication actions can be performed by a second network node (e.g., DU or RU).

[0135] As used herein, "outputting" or "transmitting" communication from network node 110 to UE 120 can refer to direct transmission (e.g., from network node 110 to UE 120) or indirect transmission via one or more other network nodes or devices. For example, if network node 110 is a DU, indirect transmission to UE 120 may include the DU outputting or transmitting communication to an RU and the RU transmitting communication to UE 120, or may include causing the RU to transmit communication (e.g., triggering the transmission of a physical layer reference signal). Similarly, "transmitting" communication from UE 120 to network node 110 can refer to direct transmission (e.g., from UE 120 to network node 110) or indirect transmission via one or more other network nodes or devices. For example, if network node 110 is a DU, indirect transmission to network node 110 may include UE 120 transmitting communication to an RU and the RU transmitting communication to the DU. Similarly, network node 110 “receiving” communication may refer to directly receiving a transmission carrying communication (e.g., from UE 120 to network node 110) or receiving communication (or information derived from receiving communication) via one or more other network nodes or devices.

[0136] In some respects, as indicated by reference numeral 905, UE 120 can transmit capability reports, and network node 110 can receive capability reports. UE 120 can transmit capability reports via uplink communication, UE Assistive Information (UAI) communication, uplink control information (UCI) communication, uplink MAC control element (MAC-CE) communication, RRC communication, physical uplink control channel (PUCCH), and / or physical uplink shared channel (PUSCH), etc. The capability report can indicate one or more parameters associated with a corresponding capability of UE 120. One or more parameters can be indicated via the corresponding information element (IE) included in the capability report.

[0137] A capability report may indicate whether UE 120 supports a certain feature and / or one or more parameters associated with that feature. For example, a capability report may indicate the capabilities and / or parameters for a reference signal described herein (e.g., a reference signal associated with on-demand broadcast communication such as an SSB or SIB). In some aspects, a reference signal may be referred to as a simplified SSB, a streamlined SSB, and / or a DRS, etc. As another example, a capability report may indicate the capabilities and / or parameters for supported content and / or timing for a reference signal. One or more operations described herein may be based on the capability information in the capability report. For example, the UE may perform communication based on the capability information, or may receive configuration information based on the capability information. In some aspects, a capability report may indicate the UE's support for a TSS, one or more supported SCSs of the reference signal, and / or one or more supported transmission modes of the reference signal, etc.

[0138] As shown by reference numeral 910 in the attached figure, network node 110 can send configuration information, and UE 120 can receive configuration information. In some aspects, UE 120 can receive configuration information via one or more of the following: system information (e.g., MIB and / or SIB, etc.), RRC signaling, one or more MAC control elements (MAC-CE) and / or DCI, etc. Configuration information can be sent via the anchor cell of UE 120.

[0139] In some aspects, the configuration information may indicate one or more candidate configuration and / or communication parameters. In some aspects, these one or more candidate configuration and / or communication parameters may be selected, activated, and / or deactivated by subsequent indications. For example, a subsequent indication may select a candidate configuration and / or communication parameter from the one or more candidate configuration and / or communication parameters. In some aspects, subsequent indications (e.g., the indications described herein) may include dynamic indications, such as one or more MAC-CE and / or one or more DCI messages, etc.

[0140] In some aspects, the configuration information may instruct UE 120 to receive one or more reference signals for broadcast communications (e.g., on-demand broadcast communications) that are transmitted based on, in response to, or otherwise associated with a trigger. In some aspects, the configuration information may instruct the reference signals to be transmitted via a non-anchor cell, PCell, or SCell.

[0141] In some aspects, the configuration information may include SSB configuration for the SSB carrying first synchronization information. The SSB configuration may indicate information regarding the timing and / or frequency of the SSB measurement window. Additionally or alternatively, the SSB configuration may indicate the SCS of the SSB. The SSB configuration may be configured by the serving cell (such as...) ServingCellConfigCommonRRC IE) indicates the mode of transmission for SSB. In some respects, the transmission mode for SSB can be indicated by RRC IE (such as...). ssb-PositionsInBurst RRC IE) instruction.

[0142] The first synchronization information can be combined as follows: Figure 4 Similar approaches described include PSS, SSS, and PBCH. For example, in a wireless network (such as an NR network), network nodes periodically broadcast or otherwise transmit SSBs on access links (e.g., Uu interfaces) to enable the UE's initial network acquisition and synchronization. Additionally or alternatively, SSBs can be used for cell search on access links, beam management and / or beam selection on access links, etc. For example, an SSB may include a PSS, SSS, and PBCH carrying information that the UE can use to derive, decode, or otherwise obtain information for accessing cells provided by the network node (e.g., radio frame boundaries, physical cell identifiers, and / or MIBs providing parameters for obtaining SIB1, etc.). Furthermore, in some aspects, the PBCH typically includes a DMRS carrying sequences or other suitable information to enable the UE to perform channel estimation to demodulate or decode the PBCH.

[0143] For example, an SSB transmitted on an access link typically occupies four (4) consecutive symbols in the time domain and includes a PSS, SSS, and PBCH extended over 240 subcarriers (e.g., 20 RBs, each comprising 12 subcarriers) in the frequency domain. The PSS typically occupies the first symbol and spans 127 subcarriers, and the SSS is located in the third symbol and spans 127 subcarriers, with 8 unused subcarriers above the SSS and 9 unused subcarriers below the SSS. Furthermore, the PBCH typically occupies two full symbols, spanning 240 subcarriers (or 20 RBs) in the second symbol and 240 subcarriers (or 20 RBs) in the fourth symbol, and the PBCH partially occupies the third symbol, spanning 48 subcarriers (or 4 RBs) above the SSS and 48 subcarriers (or 4 RBs) below the SSS, thus the PBCH occupies 576 subcarriers across three symbols. Furthermore, the PBCH DMRS occupies three (3) REs in each RB allocated to the PBCH, thus the PBCH DMRS occupies 144 REs across three symbols (e.g., occupies 3 REs in each of the 48 RBs allocated to the PBCH), and the remaining 432 REs in the 48 RBs allocated to the PBCH carry the PBCH payload. In some respects, the TSS described herein may be or may include the PBCH DMRS.

[0144] In some respects, one or more candidate SSB locations can be combined as follows Figure 6The SSB location may be defined or otherwise fixed in a similar manner as described (e.g., via wireless communication standards such as 3GPP). For example, the SSB location may not be indicated by the SSB configuration. The UE 120 may search for SSBs in time and / or frequency locations to determine the SSB location for a given SSB.

[0145] In some aspects, the configuration information may include WUS configuration. For example, the configuration information may indicate one or more WUS opportunities (e.g., time / frequency opportunities) that the UE 120 can use to send C-WUS.

[0146] In some aspects, configuration information may indicate information for the RS (e.g., a simplified SSB, a streamlined SSB, or a DRS). For example, configuration information may indicate the SCS of the RS. In some aspects, UE 120 may determine one or more parameters of a reference signal based on the SSB configuration. For example, the reference signal may use the same SCS indicated by the SSB configuration.

[0147] In some aspects, the configuration information can configure one or more measurement windows. For example, the configuration information can configure an SSB measurement window. Additionally or alternatively, the configuration window can configure a measurement window for a reference signal (e.g., a simplified SSB, a reduced SSB, or a DRS). In some aspects, the timing of the SSB measurement window (e.g., for measuring on-demand SSBs) can be relative to the timing of the measurement window for the reference signal, as described in more detail elsewhere herein.

[0148] UE 120 can configure itself at least in part based on configuration information. In some respects, UE 120 can be configured to perform one or more of the operations described herein, at least in part based on configuration information.

[0149] In some aspects, the configuration information and / or capability report described in conjunction with reference to reference numeral 910 may include information transmitted via multiple communications. Additionally or alternatively, network node 110 may transmit the configuration information or communications including at least a portion of the configuration information before and / or after UE 120 transmits the capability report. For example, network node 110 may transmit a first portion of the configuration information before the capability report, UE 120 may transmit at least a portion of the capability report, and network node 110 may transmit a second portion of the configuration information after receiving the capability report.

[0150] As shown by reference numeral 915 in the attached figure, network node 110 may transmit a reference signal (e.g., a simplified SSB, a reduced SSB, and / or a DRS), and UE 120 may receive the reference signal. The reference signal may be used for on-demand broadcast communications, such as SSBs or SIBs (e.g., SIB1), etc. For example, the reference signal may be associated with providing time-domain tracking information, frequency-domain tracking information, and / or path loss information, etc., for on-demand broadcast communications (such as SSBs or SIBs (e.g., SIB1)). The reference signal may be a DRS or another type of reference signal.

[0151] The reference signal may include simplified synchronization information. For example, the SSB may include first synchronization information (e.g., PSS, SSS, and PBCH). The reference signal may include second synchronization information simplified relative to the first synchronization information. For example, the reference signal may include only PSS and SSS (e.g., without PBCH). In some aspects, the reference signal may include only PSS, SSS, and TSS (e.g., without PBCH). The TSS may be a sequence associated with an index indicating the reference signal, etc. In some aspects, the TSS may be or may include DMRS of the PBCH. In some aspects, the TSS may indicate beam information for the reference signal. In some aspects, the reference signal may indicate (or be obtainable by UE 120 via the reference signal) symbol timing information and / or PCI of the cell through which the reference signal is transmitted.

[0152] In some aspects, the reference signal may indicate (or be obtained by the UE 120 via the reference signal) symbol timing information, time slot timing information, PCI, and / or beam information. For example, the TSS may indicate the index of the reference signal. The UE 120 may determine spatial domain information (e.g., downlink beam) for transmitting the reference signal. The UE 120 may determine the uplink beam (e.g., corresponding to the downlink beam) based on the spatial domain information. The UE 120 may associate the uplink beam with the cell through which the reference signal is transmitted (e.g., using the index of the reference signal).

[0153] As described elsewhere herein, the SSB may be associated with an SSB location in the time domain and a first transmission mode. Network node 110 may transmit a reference signal in at least a portion of the SSB location and using a second transmission mode, and UE 120 may receive the reference signal in at least a portion of the SSB location and using the second transmission mode. For example, the SSB location may include a first time domain location of the PSS, a second time domain location of the SSS, and a third time domain location of the PBCH. For example, the SSB location may include four OFDM symbols. The PSS may be included in the first OFDM symbol. The SSS may be included in the third OFDM symbol. The PBCH may be included in the second, third, and fourth OFDM symbols. In some aspects, the second transmission mode includes the PSS in the first time domain location and the SSS in the fourth time domain location. For example, the PSS may be included in the first OFDM symbol, and the SSS may be included in the second OFDM symbol. In other words, the reference signal may include the PSS and SSS remapped to the second OFDM symbol. The SSB location may include a second reference signal (e.g., having a PSS in a third OFDM symbol and an SSS in a fourth OFDM symbol). For example, UE 120 may anticipate the reference signal in the SSB location (e.g., as described herein) and may not anticipate reference signals in other symbols, slots, or subframes (e.g., where the SSB is not anticipated).

[0154] In some respects, the second transmission mode may consist only of the PSS in the first time domain location and the SSS in the second time domain location. For example, the PSS may be included in the first OFDM symbol, and the SSS may be included in the third OFDM symbol (e.g., where the second and fourth OFDM symbols are unoccupied).

[0155] In some aspects, the second transmission mode may include a PSS in a first time-domain location, an SSS in a fourth time-domain location, and a TSS in at least one of the first or fourth time-domain locations. For example, the PSS may be included in a first OFDM symbol, and the SSS may be included in a second OFDM symbol. The TSS may be included in the first OFDM symbol and / or the second OFDM symbol. The PSS and SSS may be included in a first or more frequency-domain resources of the reference signal, and the TSS may be included in a second or more frequency-domain resources of the reference signal. For example, the TSS may be frequency-division multiplexed with the PSS and / or SSS. In other examples, the TSS may be time-division multiplexed with the PSS and / or SSS (e.g., and the PSS, SSS, and TSS may be included in separate OFDM symbols). The TSS may be or may include PBCH DMRS. For example, (e.g., a typical SSB) PBCH DMRS may be remapped to time and / or frequency resources associated with the TSS, as described herein.

[0156] As indicated by reference numeral 920 in the accompanying drawings, UE 120 can measure a reference signal. For example, UE 120 can search for the reference signal at a desired time-domain and / or frequency-domain location (e.g., as described elsewhere herein). UE 120 can detect the reference signal based on the searched reference signal. UE 120 can perform one or more measurements of the reference signal to obtain measurement information. In some aspects, the measurement information may indicate one or more RSRP values ​​or another measurement value. Additionally, the measurement information may indicate timing information, such as symbol timing information or time slot timing information. For example, if the reference signal indicates an index (e.g., indicated via TSS), UE 120 can use that index to determine the expected location of that index in a time slot. Based on the expected location in the time slot, UE 120 can use the timing of the reference signal to determine the time slot timing of the cell.

[0157] Additionally, the measurement information may indicate frequency information. For example, UE 120 may determine the frequency at which it receives a reference signal. Additionally, the measurement information may indicate beam information. For example, UE 120 may determine spatial domain information for the reference signal (e.g., the downlink beam through which the reference signal is transmitted).

[0158] UE 120 can measure one or more reference signals in a similar manner to that described herein. For example, UE 120 can measure reference signals from a corresponding cell (e.g., from multiple cells). UE 120 can obtain measurement information for each cell.

[0159] UE 120 may transmit communications in association with measurement information, and network node 110 may receive communications in association with measurement information. For example, as shown by reference numeral 925, UE 120 may transmit C-WUS. C-WUS may be PRACH communication or scheduling requests, etc. For example, UE 120 may use measurement information to determine the cell to be woken up. For example, UE 120 may use measurement information from multiple cells to determine the cell associated with the highest signal strength or best signal quality (e.g., measurements based on a reference signal, such as DRS). UE 120 may transmit C-WUS to the cell. For example, UE 120 may obtain the cell's PCI via a reference signal. Additionally, UE 120 may obtain timing information and / or frequency information for the cell. For example, UE 120 may determine the cell's symbol timing and / or time slot timing based on measurements of a reference signal. Additionally, UE 120 may obtain spatial domain information for the cell. For example, UE 120 may determine the uplink beam to be used for transmitting C-WUS based on the downlink beam used to transmit the reference signal. For example, the uplink beam may be in the same corresponding spatial direction as the downlink beam. UE 120 may use timing information, frequency information, and / or spatial information (e.g., beam information) obtained via the reference signal to transmit C-WUS.

[0160] UE 120 may send a C-WUS to trigger the transmission of broadcast communications (such as SSBs or SIBs (e.g., SIB1)). For example, UE 120 may determine that it wants to establish a communication connection with a cell (e.g., because UE 120 may be operating in an RRC idle state or an RRC inactive state). However, since the cell may be in a power-saving mode and / or may not be transmitting SSBs or SIB1, UE 120 may send a C-WUS to trigger the cell to transmit SSBs or SIB1 (e.g., to enable UE 120 to obtain information for accessing the cell or establishing a communication connection via the cell).

[0161] Additionally or alternatively, as indicated by reference numeral 930, UE 120 may transmit measurement reports, and network node 110 may receive measurement reports. The measurement reports may indicate measurement information for reference signals. In some aspects, the measurement reports may indicate measurement information for multiple reference signals (e.g., for a given cell). Alternatively, UE 120 may transmit multiple measurement reports for a given cell, which indicate measurement information for reference signals (e.g., a simplified SSB, a reduced SSB, or a DRS).

[0162] As indicated by reference numeral 935, network node 110 may determine to send on-demand broadcast communications (e.g., SSB or SIB1). In some aspects, such as when UE 120 is in RRC idle mode or RRC inactive mode and / or when carrier aggregation is not configured for UE 120, network node 110 may determine to send on-demand broadcast communications based on, in response to, or otherwise associated with receiving a C-WUS (e.g., sent as described in conjunction with reference numeral 925). For example, network node 110 may determine to transition the cell from sleep to active state based on, in response to, or otherwise associated with receiving a C-WUS indicating the PCI of the cell.

[0163] Additionally or alternatively, network node 110 may determine the transmission of on-demand broadcast communications based on measurement information. For example, if carrier aggregation is configured for UE 120, the measurement information may indicate measurements of reference signals from one or more SCells. Network node 110 may use the measurement information to determine the optimal one or more SCells to configure for UE 120. Network node 110 may initiate or trigger broadcast communications (e.g., SSB or SIB1) to be transmitted via those one or more SCells (e.g., to enable UE 120 to establish communication connections with one or more SCells).

[0164] As shown by reference numeral 940 in the attached figure, network node 110 may transmit broadcast communications (e.g., SSB or SIB, such as SIB1), and UE 120 may receive such broadcast communications. For example, network node 110 may transmit broadcast communications based on, in response to, or otherwise associated with a trigger, and UE 120 may receive broadcast communications based on, in response to, or otherwise associated with a trigger. The trigger may be UE-triggered, such as the transmission of C-WUS. Alternatively, the trigger may be network-triggered, such as network node 110 determining to use measurement information of a reference signal to transmit broadcast communications. In other words, the broadcast communications may be on-demand broadcast communications (e.g., on-demand SSB or on-demand SIB). UE 120 may use the content of the broadcast communications to perform RACH procedures and establish a communication connection with the cell.

[0165] As indicated above, Figure 9 This is provided as an example. Other examples are available with reference to [the relevant information]. Figure 9 The examples described are different.

[0166] Figures 10A to 10E This is a diagram illustrating an example format of a reference signal for on-demand broadcast communications according to this disclosure. The format described and depicted herein is provided as an example. Other examples, such as those for other SSB locations or formats, may differ from the examples depicted and / or described herein.

[0167] like Figure 10AAs shown, the first format 1005 may include four reference signals (shown as RS 0 1010, RS 1 1015, RS 2 1015, and RS 3 1025) in a time slot. The reference signals may be included in the SSB location (e.g., a time-domain location otherwise associated with the SSB). For example, Figure 10A The SSB positions in the time slots shown can be found in symbols 2 to 5 and symbols 8 to 11. For example... Figure 10A As shown, RS 0 1010 can be included in symbols 2 and 3. For example, PSS can be included in symbol 2, and SSS can be included in symbol 3. RS 1 1015 can be included in symbols 4 and 5. For example, PSS can be included in symbol 4, and SSS can be included in symbol 5. In other words, the first part of the SSB position includes a first reference signal (e.g., RS 0 1010), and the second part of the SSB position includes a second reference signal (e.g., RS 1 1015). RS 2 1020 can be included in symbols 8 and 9. For example, PSS can be included in symbol 8, and SSS can be included in symbol 9. RS 3 1025 can be included in symbols 10 and 11. For example, PSS can be included in symbol 10, and SSS can be included in symbol 11.

[0168] like Figure 10A As shown, the reference signal can be included in the bandwidth of the PSS of the SSB. For example, if the PSS of the SSB spans 127 subcarriers, the bandwidth of the reference signal (e.g., RS 0 1010, RS 1 1015, RS 2 1015, and RS 3 1025) can be 127 subcarriers. Figure 10A As shown, UE 120 may not expect reference signals in symbols (such as symbols 0, 1, 6, 7, 12, and 13) that are not associated with SSB locations. First format 1005 allows a network node to transmit four reference signals via two SSB locations in a given time slot. Therefore, in another time slot, the network node can enter a sleep state to save power (e.g., instead of transmitting during the SSB locations in that time slot).

[0169] like Figure 10B As shown, the second format 1030 may include two reference signals (shown as RS 0 1010 and RS 1 1015) in a time slot. Figure 10BThe reference signal in the time slot may include only the PSS and SSS (e.g., without PBCH or TSS). A portion of the reference signal may be included in the same time and / or frequency domain, as would have been intended for the SSB. For example, the SSB location in a time slot may include the PSS in symbol 2 and the SSS in symbol 4. Instead of including the PBCH in symbols 3 and 5 (e.g., as would have been for the SSB), RS 0 1010 may be transmitted only in symbols 2 and 4 (e.g., symbols 3 and 4 may be unoccupied). Similarly, RS 1 1015 may be included in symbol 8 (e.g., the PSS may be included in symbol 8) and symbol 10 (e.g., the SSS may be included in symbol 10). Symbols 9 and 11 may be unoccupied (e.g., UE 120 may not expect the reference signal in symbol 9 or symbol 11). For example, a network node may transmit the PSS and SSS in a similar manner to the SSB (e.g., the same mapping or transmission pattern), but may avoid transmitting the PBCH.

[0170] Figure 10C A third format 1035 is described, comprising a reference signal having a TSS. The third format 1035 may be similar to the first format 1005, but may span the bandwidth of the SSB (e.g., not just the bandwidth of the PSS) to include a TSS frequency-division multiplexed with the PSS and / or SSS (e.g., as...). Figure 11A and Figure 11B (As depicted in the text).

[0171] Figure 10D A fourth format 1040 is depicted, comprising four reference signals (shown as RS 0 1010, RS 1 1015, RS 2 1015, and RS 3 1025) within a time slot. (As shown...) Figure 10D As shown, the fourth format 1040 may include a first portion and a second portion of the SSB position. The first portion of the SSB position includes the PSS of a first reference signal (e.g., RS 0 1010) and a second reference signal (e.g., RS 1 1015), and the second portion of the SSB position includes the SSS of the first and second reference signals. For example, symbol 2 may include the PSS of RS 0 1010, and symbol 4 may include the SSS of RS 0 1010. Symbol 3 may include the PSS of RS 1 1015, and symbol 5 may include the SSS of RS 1 1015. Similarly, symbol 8 may include the PSS of RS 2 1020, and symbol 10 may include the SSS of RS 2 1020. Symbol 9 may include the PSS of RS 3 1025, and symbol 11 may include the SSS of RS 3 1025.

[0172] Figure 10EA fifth format 1045 is depicted, which includes two reference signals (shown as RS 0 1010 and RS 1 1015) in a time slot. The reference signal may include a TSS. For example, the fifth format 1045 may be associated with a reference signal that includes a TSS time-division multiplexed with a PSS and an SSS. For example, RS 0 1010 may include a PSS in symbol 2, an SSS in symbol 3, and a TSS in symbol 4. As another example, RS 1 1015 may include a PSS in symbol 8, an SSS in symbol 9, and a TSS in symbol 10. In some aspects, another reference signal may be included in symbols 5 through 7 in a similar manner.

[0173] As indicated above, Figures 10A to 10E This is provided as an example. Other examples are available with reference to [the relevant information]. Figures 10A to 10E The examples described are different.

[0174] Figures 11A to 11B This is an example 1100 of the format of a reference signal for on-demand broadcast communication according to this disclosure. Figure 11A and Figure 11B RS (such as combination) is shown Figure 9 Example format of the reference signal transmitted as described in Figure 915. Figure 11A and Figure 11B As shown, the reference signal can span two symbols (e.g., two OFDM symbols) and may include PSS, SSS, and TSS.

[0175] like Figure 11A As shown, the reference signal may include a PSS in the first symbol. The PSS may span a subset of the bandwidth of the reference signal (e.g., it may be the bandwidth of the SSB). For example, the bandwidth of the reference signal may be extended over 240 subcarriers in the frequency domain (e.g., 20 RBs, each comprising 12 subcarriers). The PSS may occupy the first symbol and span 127 subcarriers (e.g., 12 RBs), and the SSS may be located in the second symbol and span 127 subcarriers, with 8 unused subcarriers above the SSS and 9 unused subcarriers below the SSS. The TSS may occupy 6 RBs in the second symbol (e.g., three RBs above the SSS in the frequency domain and three RBs below the SSS in the frequency domain). Figure 11A The example depicted could be a TSS for a 63-length binary phase shift keying (BPSK) modulation sequence (m-sequence). TSSs with different sequence lengths can result in different formats and / or occupy more or fewer RBs.

[0176] Figure 11BExamples are depicted where the TSS is included in both the first and second symbols. For example, the TSS may occupy 12 RBs. The TSS may occupy four RBs in the first symbol (e.g., with two unoccupied RBs above and below the PSS). The TSS may occupy eight RBs in the second symbol (e.g., four RBs above the SSS and four RBs below the SSS). Figure 11B The example depicted can be used for TSS with a 127-length m sequence.

[0177] As indicated above, Figures 11A to 11B This is provided as an example. Other examples are available for comparison. Figures 11A to 11B The descriptions are different.

[0178] Figure 12 This is a diagram of example 1200 associated with the location of a reference signal used for on-demand broadcast communication according to this disclosure. Figure 12 The location of the reference signal within the context of the candidate SSB location is depicted. For example, as described elsewhere in this document, the reference signal may be included in the candidate SSB location (e.g., the candidate SSB location may be reused). As an example, Figure 12 Four candidate SSB locations, such as those defined over two time slots for a 30 kHz SCS, are depicted. The SSB locations may differ for other SCSs and / or for other frequency ranges. However, the candidate SSB locations can be reused for a reference signal in a similar manner as described herein. As an example, a reference signal may not be desired in subframes, time slots, or OFDM symbols that are not otherwise associated with candidate SSB locations (e.g., as described in conjunction with reference numeral 915).

[0179] As an example, candidate SSB locations for SSB 0 may include symbols 4 to 7 of the first time slot or symbols 2 to 5 of the first time slot. RS 0 may be included in the first two symbols of the candidate SSB locations for SSB 0 (e.g., symbols 4 and 5 or symbols 2 and 3). RS 1 may be included in the next two symbols of the candidate SSB locations for SSB 0 (e.g., symbols 6 and 7 or symbols 4 and 5). Candidate SSB locations for SSB 1 may include symbols 8 to 11 of the first time slot. RS 2 may be included in the first two symbols of the candidate SSB locations for SSB 1 (e.g., symbols 8 and 9). RS 3 may be included in the next two symbols of the candidate SSB locations for SSB 1 (e.g., symbols 10 and 11).

[0180] Candidate SSB locations for SSB 2 may include symbols 2 through 5 of the second time slot. RS 4 may be included in the first two symbols (e.g., symbols 2 and 3) of the candidate SSB locations for SSB 2. RS 5 may be included in the next two symbols (e.g., symbols 4 and 5) of the candidate SSB locations for SSB 2. Candidate SSB locations for SSB 3 may include symbols 6 through 9 of the second time slot or symbols 8 through 11 of the second time slot. RS 6 may be included in the first two symbols (e.g., symbols 6 and 7 or symbols 8 and 9) of the candidate SSB locations for SSB 3. RS 7 may be included in the next two symbols (e.g., symbols 8 and 9 or symbols 10 and 11) of the candidate SSB locations for SSB 0.

[0181] As indicated above, Figure 12 This is provided as an example. Other examples are available with reference to [the relevant information]. Figure 12 The examples described are different.

[0182] Figure 13 This is a diagram of example 1300 associated with the timing of a reference signal used for on-demand broadcast communication according to this disclosure. Figure 13 As shown, the UE can receive reference signal 1305. The reference signal can be similar to, in conjunction with reference numeral 915 in the accompanying drawings. Figures 10A to 10E , Figures 11A to 11B and / or Figure 12 The reference signal described. For example, reference signal 1305 could be an RS used for on-demand broadcast communication.

[0183] The UE can receive broadcast communication 1310. As an example, this broadcast communication is in Figure 13 The signal is shown as an SSB. Broadcast communication 1310 may be sent based on, in response to, or otherwise associated with a trigger, as described elsewhere herein. For example, broadcast communication 1310 may be an on-demand broadcast communication. The UE may be configured to measure broadcast communication 1310 during a measurement window 1315 (e.g., an SSB measurement window).

[0184] In some aspects, the UE may measure the reference signal 1305 during a first measurement window (e.g., the RS measurement window). The UE may measure the broadcast communication 1310 during a second measurement window (e.g., measurement window 1315). The timing of measurement window 1315 may be relative to the first measurement window. For example, the timing of measurement window 1315 may be relative to the end of the first measurement window. For example, the start of measurement window 1315 may be from the end of the RS measurement window (e.g., the first measurement window). XA symbol or time slot. As another example, the timing of measurement window 1315 may be relative to the time slot in which the first measurement window occurs (e.g., if the UE can obtain time slot timing information via reference signal 1305, such as via TSS). For example, measurement window 1315 may be after the time slot in which the first measurement window occurs. P Each time slot appears.

[0185] like Figure 13 As shown, reference signal 1305 and broadcast communication 1310 can be transmitted via the same frequency. This reduces UE complexity and / or latency associated with searching for broadcast communication 1310. In some aspects, a first measurement window and / or a second measurement window (e.g., measurement window 1315) can be configured on a cell group basis (e.g., per cell group). This simplifies the detection of reference signal 1305 and / or broadcast communication 1310.

[0186] As indicated above, Figure 13 This is provided as an example. Other examples are available with reference to [the relevant information]. Figure 13 The examples described are different.

[0187] Figure 14 This is a diagram illustrating an example process 1400 performed, for example, at a UE or a device of a UE, according to this disclosure. Example process 1400 is an example of a device or UE (e.g., UE 120) performing operations associated with reference signals for on-demand broadcast communication.

[0188] like Figure 14 As shown, in some aspects, process 1400 may include receiving SSB configuration (block 1410) for an SSB carrying first synchronization information. For example, the UE (e.g., using...) Figure 16 The receiving component 1602 and / or communication manager 1606 described herein can receive SSB configuration for an SSB carrying first synchronization information, as described above.

[0189] like Figure 14 As further shown, in some aspects, process 1400 may include receiving a reference signal indicating a simplified second synchronization information relative to the first synchronization information (block 1420). For example, the UE (e.g., using...) Figure 16 The receiving component 1602 and / or communication manager 1606 described herein can receive a reference signal indicating a second synchronization information simplified relative to the first synchronization information, as described above.

[0190] As in Figure 14 As further shown, in some aspects, process 1400 may include measuring a reference signal to obtain measurement information (block 1430). For example, the UE (e.g., using...) Figure 16The communication manager 1606 depicted in the text can measure a reference signal to obtain measurement information, as described above.

[0191] like Figure 14 As further shown, in some aspects, process 1400 may include transmitting communication in association with measurement information (block 1440). For example, the UE (e.g., using...) Figure 16 The transmitting component 1604 and / or communication manager 1606 described herein can transmit communications in association with measurement information, as described above.

[0192] like Figure 14 As further shown, in some aspects, process 1400 may include communication-based transmission, receiving the SSB based on SSB configuration and measurements of a reference signal (block 1450). For example, the UE (e.g., using...) Figure 16 The receiving component 1602 and / or communication manager 1606 described herein can receive SSBs based on the transmission of communication, according to the SSB configuration and the measurement of the reference signal, as described above.

[0193] Process 1400 may include additional aspects, such as any single aspect or any combination of aspects described below and / or in conjunction with one or more other processes described elsewhere in this document.

[0194] In the first aspect, the SSB is associated with an SSB location in the time domain and a first transmission mode, and the reception of the reference signal includes receiving the reference signal using a second transmission mode at least a portion of the SSB location.

[0195] In the second aspect, either alone or in combination with the first aspect, the first synchronization information includes PSS information, SSS information, and PBCH information, and the second synchronization information includes only PSS information and SSS information.

[0196] In the third aspect, either alone or in combination with one or more of the first and second aspects, the second synchronization information indicates the timing information and the physical cell identifier.

[0197] In the fourth aspect, either alone or in combination with one or more of the first to third aspects, the second synchronization information indicates time slot timing information, index of reference signals, and physical cell identifier.

[0198] In the fifth aspect, either alone or in combination with one or more of the first to fourth aspects, the second synchronization information includes only PSS information and SSS information.

[0199] In the sixth aspect, the second synchronization information also includes TSS information, either alone or in combination with one or more of the first to fifth aspects.

[0200] In the seventh aspect, either alone or in combination with one or more of the first to sixth aspects, the SSB is associated with an SSB location in the time domain and a first transmission mode, wherein the first transmission mode indicates a first time domain location of the PSS, a second time domain location of the SSS, and a third time domain location of the PBCH, and reception of the reference signal includes receiving at least the PSS and the SSS using a second transmission mode at at least a portion of the SSB location.

[0201] In the eighth aspect, either alone or in combination with one or more of the first to seventh aspects, the second transmission mode includes a PSS in the first time domain position and an SSS in the fourth time domain position.

[0202] In the ninth aspect, either alone or in combination with one or more of the first to eighth aspects, the second transmission mode includes only the PSS in the first time domain position and the SSS in the second time domain position.

[0203] In the tenth aspect, alone or in combination with one or more of the first to ninth aspects, the reference signal includes a first reference signal and a second reference signal, and the first reference signal and the second reference signal are included in the SSB position.

[0204] In the eleventh aspect, either alone or in combination with one or more of the first to tenth aspects, the second transmission mode indicates that the first portion of the SSB location includes a first reference signal and the second portion of the SSB location includes a second reference signal.

[0205] In the twelfth aspect, either alone or in combination with one or more of the first to eleventh aspects, the second transmission mode indicates that the first portion of the SSB location includes the PSS of the first reference signal and the second reference signal, and the second portion of the SSB location includes the SSS of the first reference signal and the second reference signal.

[0206] In the thirteenth aspect, either alone or in combination with one or more of the first to twelfth aspects, the second transmission mode includes a PSS in a first time domain position, an SSS in a fourth time domain position, and a TSS in at least one of the first or fourth time domain positions.

[0207] In the fourteenth aspect, either alone or in combination with one or more of the first to thirteenth aspects, the PSS and SSS are included in the first or more frequency domain resources of the reference signal, and the TSS is included in the second or more frequency domain resources of the reference signal.

[0208] In aspect fifteen, TSS is frequency-division multiplexed with PSS and SSS, either alone or in combination with one or more of aspects one through fourteen.

[0209] In the sixteenth aspect, PSS, SSS and TSS are time-division multiplexed, either alone or in combination with one or more of the first to fifteenth aspects.

[0210] In the seventeenth aspect, alone or in combination with one or more of the first to sixteenth aspects, the reception of the reference signal includes receiving the reference signal via a frequency, and the reception of the SSB includes receiving the SSB via a frequency.

[0211] In the eighteenth aspect, either alone or in combination with one or more of the first to seventeenth aspects, the measurement of the reference signal includes measuring the reference signal during the first measurement window.

[0212] In the nineteenth aspect, alone or in combination with one or more of the first to eighteenth aspects, process 1400 includes measuring SSB during a second measurement window, wherein the timing of the second measurement window is relative to the first measurement window.

[0213] In the twentieth aspect, alone or in combination with one or more of the first to nineteenth aspects, the timing of the second measurement window is relative to the end of the first measurement window or to the time slot in which the first measurement window occurs.

[0214] In aspect 21, either alone or in combination with one or more of aspects 1 to 20, the first measurement window and the second measurement window are configured for the cell group.

[0215] In aspect 22, either alone or in combination with one or more of aspects 1 to 21, communication includes cell wake-up signals.

[0216] In the twenty-third aspect, either alone or in combination with one or more of the first to twenty-second aspects, the reception of the reference signal originates from the cell, and the transmission of communication includes sending a cell wake-up signal based on measurement information satisfying one or more criteria to trigger the transmission of the SSB from the cell.

[0217] In the twenty-fourth aspect, either alone or in combination with one or more of the first to twenty-third aspects, communication includes measurement reports indicating measurement information.

[0218] although Figure 14 An example box of process 1400 is shown, but in some respects, process 1400 may include... Figure 14 The boxes depicted in the diagram are compared to additional boxes, fewer boxes, different boxes, or boxes arranged in a different manner. Additionally or alternatively, two or more boxes in the process 1400 may be executed in parallel.

[0219] Figure 15This is a diagram illustrating an example process 1500 performed, for example, at a network node or a device of a network node, according to the present disclosure. Example process 1500 is an example of a device or network node (e.g., network node 110) performing operations associated with reference signals for on-demand broadcast communication.

[0220] like Figure 15 As shown, in some aspects, process 1500 may include sending an SSB configuration (block 1510) for an SSB carrying first synchronization information. For example, a network node (e.g., using...) Figure 17 The transmitting component 1704 and / or the communication manager 1706 described herein can transmit an SSB configuration for an SSB carrying first synchronization information, as described above.

[0221] like Figure 15 As further shown, in some aspects, process 1500 may include sending a reference signal (block 1520) indicating a second synchronization information simplified relative to the first synchronization information. For example, a network node (e.g., using...) Figure 17 The transmitting component 1704 and / or the communication manager 1706 depicted herein may transmit a reference signal indicating a second synchronization information simplified relative to the first synchronization information, as described above.

[0222] like Figure 15 As further shown, in some aspects, process 1500 may include receiving communication (box 1530) in association with measurement information of a reference signal. For example, a network node (e.g., using...) Figure 17 The receiving component 1702 and / or communication manager 1706 depicted herein can receive communications in association with measurement information of the reference signal, as described above.

[0223] like Figure 15 As further shown, in some aspects, process 1500 may include transmitting an SSB based on communication reception, wherein the SSB is based on SSB configuration and measurement information (box 1540). For example, network nodes (e.g., using...) Figure 17 The transmitting component 1704 and / or communication manager 1706 described herein can transmit an SSB based on the receipt of communication, wherein the SSB is based on SSB configuration and measurement information as described above.

[0224] Process 1500 may include additional aspects, such as any single aspect or any combination of aspects described below and / or in conjunction with one or more other processes described elsewhere in this document.

[0225] In the first aspect, the SSB is associated with an SSB location in the time domain and a first transmission mode, and the transmission of the reference signal includes transmitting the reference signal using a second transmission mode at least a portion of the SSB location.

[0226] In the second aspect, either alone or in combination with the first aspect, the first synchronization information includes PSS information, SSS information, and PBCH information, and the second synchronization information includes only PSS information and SSS information.

[0227] In the third aspect, either alone or in combination with one or more of the first and second aspects, the second synchronization information indicates the timing information and the physical cell identifier.

[0228] In the fourth aspect, either alone or in combination with one or more of the first to third aspects, the second synchronization information indicates time slot timing information, index of reference signals, and physical cell identifier.

[0229] In the fifth aspect, either alone or in combination with one or more of the first to fourth aspects, the second synchronization information includes only PSS information and SSS information.

[0230] In the sixth aspect, the second synchronization information also includes TSS information, either alone or in combination with one or more of the first to fifth aspects.

[0231] In the seventh aspect, either alone or in combination with one or more of the first to sixth aspects, the SSB is associated with an SSB position in the time domain and a first transmission mode, wherein the first transmission mode indicates a first time domain position of the PSS, a second time domain position of the SSS, and a third time domain position of the PBCH, and the transmission of the reference signal includes transmitting at least the PSS and the SSS using a second transmission mode in at least a portion of the SSB position.

[0232] In the eighth aspect, either alone or in combination with one or more of the first to seventh aspects, the second transmission mode includes a PSS in the first time domain position and an SSS in the fourth time domain position.

[0233] In the ninth aspect, either alone or in combination with one or more of the first to eighth aspects, the second transmission mode includes only the PSS in the first time domain position and the SSS in the second time domain position.

[0234] In the tenth aspect, alone or in combination with one or more of the first to ninth aspects, the reference signal includes a first reference signal and a second reference signal, and the first reference signal and the second reference signal are included in the SSB position.

[0235] In the eleventh aspect, either alone or in combination with one or more of the first to tenth aspects, the second transmission mode indicates that the first portion of the SSB location includes a first reference signal and the second portion of the SSB location includes a second reference signal.

[0236] In the twelfth aspect, either alone or in combination with one or more of the first to eleventh aspects, the second transmission mode indicates that the first portion of the SSB location includes the PSS of the first reference signal and the second reference signal, and the second portion of the SSB location includes the SSS of the first reference signal and the second reference signal.

[0237] In the thirteenth aspect, either alone or in combination with one or more of the first to twelfth aspects, the second transmission mode includes a PSS in a first time domain position, an SSS in a fourth time domain position, and a TSS in at least one of the first or fourth time domain positions.

[0238] In the fourteenth aspect, either alone or in combination with one or more of the first to thirteenth aspects, the PSS and SSS are included in the first or more frequency domain resources of the reference signal, and the TSS is included in the second or more frequency domain resources of the reference signal.

[0239] In aspect fifteen, TSS is frequency-division multiplexed with PSS and SSS, either alone or in combination with one or more of aspects one through fourteen.

[0240] In the sixteenth aspect, PSS, SSS and TSS are time-division multiplexed, either alone or in combination with one or more of the first to fifteenth aspects.

[0241] In the seventeenth aspect, either alone or in combination with one or more of the first to sixteenth aspects, the transmission of the reference signal includes transmitting the reference signal via a frequency, and the transmission of the on-demand SSB includes transmitting one or more SSBs via a frequency.

[0242] In the eighteenth aspect, alone or in combination with one or more of the first to seventeenth aspects, process 1500 includes transmitting configuration information for a first measurement window for a reference signal and a second measurement window for an on-demand SSB, wherein the timing of the second measurement window is relative to the first measurement window.

[0243] In the nineteenth aspect, alone or in combination with one or more of the first to eighteenth aspects, the timing of the second measurement window is relative to the end of the first measurement window or to the time slot in which the first measurement window occurs.

[0244] In the twentieth aspect, either alone or in combination with one or more of the first to nineteenth aspects, the first measurement window and the second measurement window are configured for the cell group.

[0245] In aspect 21, either alone or in combination with one or more of aspects 1 to 20, communication includes a cell wake-up signal, and the transmission of an on-demand SSB is in response to the reception of the cell wake-up signal.

[0246] In aspect 22, either alone or in combination with one or more of aspects 1 to 21, communication includes a measurement report indicating measurement information, and the on-demand transmission of SSB is based on the measurement information meeting one or more criteria.

[0247] although Figure 15 An example box of process 1500 is shown, but in some respects, process 1500 may include... Figure 15 The boxes depicted in the diagram are compared to additional boxes, fewer boxes, different boxes, or boxes arranged in a different manner. Additionally or alternatively, two or more boxes in the process 1500 may be executed in parallel.

[0248] Figure 16 This is a diagram of an example device 1600 for wireless communication according to the present disclosure. Device 1600 may be a UE, or a UE may include device 1600. In some aspects, device 1600 includes a receiving component 1602, a transmitting component 1604, and / or a communication manager 1606 that can communicate with each other (e.g., via one or more buses and / or one or more other components). In some aspects, communication manager 1606 is combined with... Figure 1 The described communication manager 140. As shown, device 1600 can communicate with another device 1608 (such as a UE or a network node (such as a CU, DU, RU or base station)) using receiving component 1602 and transmitting component 1604.

[0249] In some respects, device 1600 can be configured to perform the functions described herein. Figure 9 , Figures 10A to 10E , Figures 11A to 11B , Figure 12 and / or Figure 13 One or more operations as described herein. Additionally or alternatively, the apparatus 1600 may be configured to perform one or more processes described herein (such as...). Figure 14 The process 1400) or a combination thereof. In some respects, Figure 16 The illustrated device 1600 and / or one or more components may include a combination Figure 2 One or more components of the described UE. Additionally or alternatively, Figure 16 One or more components shown can be combined Figure 2 Implementation within one or more of the described components. Additionally or alternatively, one or more components in the set of components 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.

[0250] Receiver 1602 may receive communications from device 1608, such as reference signals, control information, data communications, or combinations thereof. Receiver 1602 may provide the received communications to one or more other components of device 1600. In some aspects, receiver 1602 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 1600. In some aspects, receiver 1602 may include combinations of... Figure 2 The 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.

[0251] Transmitting component 1604 may transmit communications, such as reference signals, control information, data communications, or combinations thereof, to device 1608. In some aspects, one or more other components of device 1600 may generate communications and provide the generated communications to transmitting component 1604 for transmission to device 1608. In some aspects, transmitting component 1604 may perform signal processing (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, etc.) on the generated communications and transmit the processed signals to device 1608. In some aspects, transmitting component 1604 may include combinations of... Figure 2 The described UE may include 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 1604 may co-located with the receive component 1602 in one or more transceivers.

[0252] The communication manager 1606 may support the operation of the receiving component 1602 and / or the transmitting component 1604. For example, the communication manager 1606 may receive information associated with configuring the reception of communications by the receiving component 1602 and / or the transmission of communications by the transmitting component 1604. Additionally or alternatively, the communication manager 1606 may generate control information and / or provide control information to the receiving component 1602 and / or the transmitting component 1604 to control the reception and / or transmission of communications.

[0253] The receiving component 1602 can receive an SSB configuration for an SSB carrying first synchronization information. The receiving component 1602 can also receive a reference signal indicating a simplified second synchronization information relative to the first synchronization information. The communication manager 1606 can measure the reference signal to obtain measurement information. The transmitting component 1604 can transmit communication in association with the measurement information. The receiving component 1602 can receive an SSB based on the transmission of communication, according to the SSB configuration and the measurement of the reference signal.

[0254] The communication manager 1606 can measure the SSB during a second measurement window, wherein the timing of the second measurement window is relative to the first measurement window.

[0255] Figure 16 The number and arrangement of components shown are provided as an example. In reality, they can exist in... Figure 16 The components shown are compared to additional components, fewer components, different components, or components arranged in a different manner. Furthermore, Figure 16 The two or more components shown can be implemented within a single component, or Figure 16 The single component shown can be implemented as multiple distributed components. Additionally or alternatively, Figure 16 The component collection (one or more components) shown can be executed as described by Figure 16 The other set of components shown performs one or more functions.

[0256] Figure 17 This is a diagram of an example device 1700 for wireless communication according to the present disclosure. Device 1700 may be a network node, or a network node may include device 1700. In some aspects, device 1700 includes a receiving component 1702, a transmitting component 1704, and / or a communication manager 1706 that can communicate with each other (e.g., via one or more buses and / or one or more other components). In some aspects, the communication manager 1706 is combined with... Figure 1 The described communication manager 150. As shown, device 1700 can communicate with another device 1708 (such as a UE or a network node (such as a CU, DU, RU or base station)) using receiving component 1702 and transmitting component 1704.

[0257] In some respects, device 1700 can be configured to perform the functions described herein. Figure 9 , Figures 10A to 10E , Figures 11A to 11B , Figure 12 and / or Figure 13 One or more operations described herein. Additionally or alternatively, the apparatus 1700 may be configured to perform one or more processes described herein (such as...). Figure 15 The process 1500) or a combination thereof. In some respects, Figure 17The illustrated device 1700 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 17 One or more components shown can be combined Figure 2 Implementation within one or more of the described components. Additionally or alternatively, one or more components in the set of components 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.

[0258] Receiver 1702 may receive communications from device 1708, such as reference signals, control information, data communications, or combinations thereof. Receiver 1702 may provide the received communications to one or more other components of device 1700. In some aspects, receiver 1702 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 1700. In some aspects, receiver 1702 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 1702 and / or transmitter component 1704 may include or be included in a network interface. The network interface may be configured to acquire and / or output signals for device 1700 via one or more communication links, such as backhaul links, midhaul links, and / or fronthaul links.

[0259] Transmitting component 1704 may transmit communications, such as reference signals, control information, data communications, or combinations thereof, to device 1708. In some aspects, one or more other components of device 1700 may generate communications and provide the generated communications to transmitting component 1704 for transmission to device 1708. In some aspects, transmitting component 1704 may perform signal processing (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, etc.) on the generated communications and transmit the processed signals to device 1708. In some aspects, transmitting component 1704 may include combinations of... Figure 2The 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 1704 may co-located with the receive component 1702 in one or more transceivers.

[0260] The communication manager 1706 may support the operation of the receiving component 1702 and / or the transmitting component 1704. For example, the communication manager 1706 may receive information associated with configuring the reception of communications by the receiving component 1702 and / or the transmission of communications by the transmitting component 1704. Additionally or alternatively, the communication manager 1706 may generate control information and / or provide control information to the receiving component 1702 and / or the transmitting component 1704 to control the reception and / or transmission of communications.

[0261] Transmitting component 1704 can transmit an SSB configuration for an SSB carrying first synchronization information. Transmitting component 1704 can also transmit a reference signal indicating a second synchronization information simplified relative to the first synchronization information. Receiving component 1702 can receive communication in association with measurement information of the reference signal. Transmitting component 1704 can transmit an SSB based on the reception of communication, wherein the SSB is based on the SSB configuration and measurement information.

[0262] The transmitting component 1704 can transmit configuration information for a first measurement window for a reference signal and a second measurement window for an on-demand SSB, wherein the timing of the second measurement window is relative to the first measurement window.

[0263] Figure 17 The number and arrangement of components shown are provided as an example. In reality, they can exist in... Figure 17 The components shown are compared to additional components, fewer components, different components, or components arranged in a different manner. Furthermore, Figure 17 The two or more components shown can be implemented within a single component, or Figure 17 The single component shown can be implemented as multiple distributed components. Additionally or alternatively, Figure 17 The component collection (one or more components) shown can be executed as described by Figure 17 The other set of components shown performs one or more functions.

[0264] The following provides an overview of some aspects of this disclosure: Aspect 1: A method of wireless communication performed by a user equipment (UE), the method comprising: receiving an SSB configuration for a synchronization signal block (SSB) carrying first synchronization information; receiving a reference signal indicating second synchronization information simplified relative to the first synchronization information; measuring the reference signal to obtain measurement information; transmitting communication in association with the measurement information; and receiving the SSB based on the transmission of the communication, according to the SSB configuration and the measurement of the reference signal.

[0265] Aspect 2: According to the method of aspect 1, wherein the SSB is associated with an SSB location in the time domain and a first transmission mode, and wherein the reception of the reference signal includes: receiving the reference signal using a second transmission mode in at least a portion of the SSB location.

[0266] Aspect 3: The method according to any one of Aspects 1 to 2, wherein the first synchronization information includes primary synchronization signal (PSS) information, secondary synchronization signal (SSS) information and physical broadcast channel (PBCH) information, and wherein the second synchronization information includes only the PSS information and the SSS information.

[0267] Aspect 4: The method according to any one of Aspects 1 to 3, wherein the second synchronization information indicates symbol timing information and physical cell identifier.

[0268] Aspect 5: The method according to any one of Aspects 1 to 4, wherein the second synchronization information indicates time slot timing information, the index of the reference signal, and the physical cell identifier.

[0269] Aspect 6: The method according to any one of Aspects 1 to 5, wherein the second synchronization information includes only primary synchronization signal (PSS) information and secondary synchronization signal (SSS) information.

[0270] Aspect 7: According to the method described in aspect 6, the second synchronization information further includes three-level synchronization signal (TSS) information.

[0271] Aspect 8: The method according to any one of Aspects 1 to 7, wherein the SSB is associated with an SSB position in the time domain and a first transmission mode, wherein the first transmission mode indicates a first time domain position of a primary synchronization signal (PSS), a second time domain position of a secondary synchronization signal (SSS), and a third time domain position of a physical broadcast channel (PBCH), and wherein the reception of the reference signal comprises: using a second transmission mode to receive at least the PSS and the SSS in at least a portion of the SSB position.

[0272] Aspect 9: According to the method of aspect 8, wherein the second transmission mode includes the PSS in the first time domain location and the SSS in the fourth time domain location.

[0273] Aspect 10: The method according to any one of Aspects 8 to 9, wherein the second transmission mode includes only the PSS in the first time domain location and the SSS in the second time domain location.

[0274] Aspect 11: The method according to any one of Aspects 8 to 10, wherein the reference signal includes a first reference signal and a second reference signal, and wherein the first reference signal and the second reference signal are included in the SSB position.

[0275] Aspect 12: According to the method of aspect 11, wherein the second transmission mode indicates that a first portion of the SSB location includes the first reference signal and a second portion of the SSB location includes the second reference signal.

[0276] Aspect 13: The method according to any one of Aspects 11 to 12, wherein the second transmission mode indicates that a first portion of the SSB location includes the PSS of the first reference signal and the second reference signal, and a second portion of the SSB location includes the SSS of the first reference signal and the second reference signal.

[0277] Aspect 14: The method according to any one of Aspects 8 to 13, wherein the second transmission mode includes the PSS in the first time domain position, the SSS in the fourth time domain position, and a three-level synchronization signal (TSS) in at least one of the first time domain position or the fourth time domain position.

[0278] Aspect 15: According to the method of aspect 14, wherein the PSS and the SSS are included in a first or more frequency domain resources of the reference signal, and the TSS is included in a second or more frequency domain resources of the reference signal.

[0279] Aspect 16: The method according to any one of Aspects 14 to 15, wherein the TSS is frequency-division multiplexed with the PSS and the SSS.

[0280] Aspect 17: The method according to any one of Aspects 14 to 15, wherein the PSS, the SSS and the TSS are time-division multiplexed.

[0281] Aspect 18: The method according to any one of Aspects 1 to 17, wherein the reception of the reference signal includes receiving the reference signal via a frequency, and wherein the reception of the SSB includes receiving the SSB via the frequency.

[0282] Aspect 19: The method according to any one of Aspects 1 to 18, wherein the measurement of the reference signal comprises: measuring the reference signal during a first measurement window.

[0283] Aspect 20: The method according to aspect 19, the method further comprising: measuring the SSB during a second measurement window, wherein the timing of the second measurement window is relative to the first measurement window.

[0284] Aspect 21: According to the method of aspect 20, the timing of the second measurement window is relative to the end of the first measurement window or relative to the time slot in which the first measurement window occurs.

[0285] Aspect 22: The method according to any one of Aspects 20 to 21, wherein the first measurement window and the second measurement window are configured for a cell group.

[0286] Aspect 23: The method according to any one of aspects 1 to 22, wherein the communication includes a cell wake-up signal.

[0287] Aspect 24: According to the method of aspect 23, wherein the reception of the reference signal is from a cell, and wherein the transmission of the communication comprises: transmitting the cell wake-up signal to trigger the transmission of the SSB from the cell based on the measurement information satisfying one or more criteria.

[0288] Aspect 25: The method according to any one of aspects 1 to 24, wherein the communication includes a measurement report indicating the measurement information.

[0289] Aspect 26: A method of wireless communication performed by a network node, the method comprising: transmitting an SSB configuration for a synchronization signal block (SSB) carrying first synchronization information; transmitting a reference signal indicating second synchronization information simplified relative to the first synchronization information; and receiving communication in association with measurement information of the reference signal; and transmitting an SSB based on the reception of the communication, wherein the SSB is based on the SSB configuration and the measurement information.

[0290] Aspect 27: According to the method of aspect 26, wherein the SSB is associated with an SSB location in the time domain and a first transmission mode, and wherein the transmission of the reference signal includes: transmitting the reference signal using a second transmission mode in at least a portion of the SSB location.

[0291] Aspect 28: The method according to any one of Aspects 26 to 27, wherein the first synchronization information includes primary synchronization signal (PSS) information, secondary synchronization signal (SSS) information and physical broadcast channel (PBCH) information, and wherein the second synchronization information includes only the PSS information and the SSS information.

[0292] Aspect 29: The method according to any one of Aspects 26 to 28, wherein the second synchronization information indicates symbol timing information and physical cell identifier.

[0293] Aspect 30: The method according to any one of Aspects 26 to 29, wherein the second synchronization information indicates time slot timing information, the index of the reference signal, and the physical cell identifier.

[0294] Aspect 31: The method according to any one of Aspects 26 to 30, wherein the second synchronization information includes only primary synchronization signal (PSS) information and secondary synchronization signal (SSS) information.

[0295] Aspect 32: According to the method of aspect 31, the second synchronization information further includes third-level synchronization signal (TSS) information.

[0296] Aspect 33: The method according to any one of Aspects 26 to 32, wherein the SSB is associated with an SSB location in the time domain and a first transmission mode, wherein the first transmission mode indicates a first time domain location of a primary synchronization signal (PSS), a second time domain location of a secondary synchronization signal (SSS), and a third time domain location of a physical broadcast channel (PBCH), and wherein the transmission of the reference signal comprises: using a second transmission mode to transmit at least the PSS and the SSS in at least a portion of the SSB location.

[0297] Aspect 34: According to the method of aspect 33, wherein the second transmission mode includes the PSS in the first time domain location and the SSS in the fourth time domain location.

[0298] Aspect 35: The method according to any one of Aspects 33 to 34, wherein the second transmission mode comprises only the PSS in the first time domain location and the SSS in the second time domain location.

[0299] Aspect 36: The method according to any one of Aspects 33 to 35, wherein the reference signal includes a first reference signal and a second reference signal, and wherein the first reference signal and the second reference signal are included in the SSB position.

[0300] Aspect 37: According to the method of aspect 36, wherein the second transmission mode indicates that a first portion of the SSB location includes the first reference signal and a second portion of the SSB location includes the second reference signal.

[0301] Aspect 38: The method according to any one of Aspects 36 to 37, wherein the second transmission mode indicates that a first portion of the SSB location includes the PSS of the first reference signal and the second reference signal, and a second portion of the SSB location includes the SSS of the first reference signal and the second reference signal.

[0302] Aspect 39: The method according to any one of Aspects 33 to 38, wherein the second transmission mode includes the PSS in the first time domain position, the SSS in the fourth time domain position, and a three-level synchronization signal (TSS) in at least one of the first time domain position or the fourth time domain position.

[0303] Aspect 40: According to the method of aspect 39, wherein the PSS and the SSS are included in a first or more frequency domain resources of the reference signal, and the TSS is included in a second or more frequency domain resources of the reference signal.

[0304] Aspect 41: The method according to any one of Aspects 39 to 40, wherein the TSS is frequency-division multiplexed with the PSS and the SSS.

[0305] Aspect 42: The method according to any one of Aspects 39 to 40, wherein the PSS, the SSS and the TSS are time-division multiplexed.

[0306] Aspect 43: The method according to any one of Aspects 26 to 42, wherein the transmission of the reference signal comprises transmitting the reference signal via a frequency, and wherein the transmission of the on-demand SSB comprises transmitting the one or more SSBs via the frequency.

[0307] Aspect 44: The method according to any one of aspects 26 to 43, the method further comprising: transmitting configuration information for a first measurement window for the reference signal and a second measurement window for the on-demand SSB, wherein the timing of the second measurement window is relative to the first measurement window.

[0308] Aspect 45: According to the method of aspect 44, the timing of the second measurement window is relative to the end of the first measurement window or relative to the time slot in which the first measurement window occurs.

[0309] Aspect 46: The method according to any one of aspects 44 to 45, wherein the first measurement window and the second measurement window are configured for a cell group.

[0310] Aspect 47: The method according to any one of Aspects 26 to 46, wherein the communication includes a cell wake-up signal, and wherein the transmission of the on-demand SSB is in response to the reception of the cell wake-up signal.

[0311] Aspect 48: The method according to any one of Aspects 26 to 47, wherein the communication includes a measurement report indicating the measurement information, and wherein the transmission of the on-demand SSB is based on the measurement information satisfying one or more criteria.

[0312] Aspect 49: 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 48.

[0313] Aspect 50: 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 48.

[0314] Aspect 51: 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 48.

[0315] Aspect 52: 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 48.

[0316] Aspect 53: 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 48.

[0317] Aspect 54: A device for wireless communication, the device including a processing system comprising 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 48.

[0318] Aspect 55: 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 48.

[0319] 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.

[0320] As used herein, the term "component" is intended to be interpreted broadly as hardware, firmware, or a combination of hardware and software. As used herein, a processor is implemented as hardware, firmware, or a combination of hardware and software. As used herein, the phrase "based on" is intended to be interpreted broadly as "at least partially based on". As used herein, depending on the context, "meeting a threshold" can refer to a value greater than a threshold, greater than or equal to a threshold, less than a threshold, less than or equal to a threshold, equal to a threshold, not equal to a threshold, etc. As used herein, the phrase referring to "at least one of" a list of items means any combination of those 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.

[0321] Furthermore, as used herein, the articles “a” and “an” are intended to include one or more items and are interchangeable with “one or more”. Furthermore, as used herein, the article “described” is intended to include one or more items mentioned in connection with the article “described” and is interchangeable with “one or more”. Furthermore, as used herein, the terms “set” and “group” are intended to include one or more items (e.g., related items, unrelated items, or a combination of related and unrelated items) and are interchangeable with “one or more”. If only one item is desired, the phrase “only one” or similar terms will be used. Moreover, as used herein, the terms “having” and similar terms are intended to be open-ended terms that do not limit the elements they modify (e.g., an element “having” A may also have B). Furthermore, as used herein, the term “or” when used in a sequence is intended to be inclusive and is interchangeable with “and / or” unless otherwise explicitly stated (e.g., in conjunction with “either of” or “only one of”).

[0322] The various exemplary logic components, logic blocks, modules, circuits, and algorithmic processes described in conjunction with the aspects disclosed herein can be implemented as electronic hardware, computer software, or a combination of both. The interchangeability of hardware and software has been generally described in terms of functionality and is illustrated in the various exemplary components, blocks, modules, circuits, and processes described herein. Whether such functionality is implemented in hardware or software depends on the specific application and the design constraints imposed on the overall system.

[0323] Hardware and data processing means for implementing the various exemplary logic, logic blocks, modules, and circuits described herein can be implemented or executed using general-purpose single-chip or multi-chip processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic components, discrete hardware components, or any combination thereof designed to perform the functions described herein. A general-purpose processor can be a microprocessor, or any conventional processor, controller, microcontroller, or state machine. A processor can also be implemented as a combination of computing devices, such as a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors combined with a DSP core, or any other such configuration. In some aspects, specific processes and methods can be performed by circuitry dedicated to a given function.

[0324] In one or more aspects, the described functionality may be implemented in hardware, digital electronic circuits, computer software, firmware, including the structures disclosed in this specification and their structural equivalents or any combination thereof. Aspects of the subject matter described in this specification may also be implemented as one or more computer programs (such as one or more modules of computer program instructions) encoded on a computer storage medium for execution by or control of the operation of a data processing apparatus.

[0325] If implemented in software, the functionality can be stored as one or more instructions or code on or transmitted through a computer-readable medium. The process of the methods or algorithms disclosed herein can be implemented in a processor-executable software module that can reside on a computer-readable medium. Computer-readable media includes both computer storage media and communication media, with communication media including any medium capable of transferring a computer program from one place to another. Storage media can be any available medium accessible to a computer. By way of example, and not limitation, such computer-readable media may include RAM, ROM, EEPROM, CD-ROM or other optical disc storage devices, disk storage devices or other magnetic storage devices, or any other medium that can be used to store desired program code in the form of instructions or data structures and is accessible to a computer. Furthermore, any connection may be properly referred to as a computer-readable medium. As used herein, disks and optical discs include compact optical discs (CDs), laser discs, optical discs, digital versatile optical discs (DVDs), floppy disks, and Blu-ray discs, where disks typically reproduce data magnetically, while optical discs reproduce data optically using lasers. Combinations of media described herein should also be included within the scope of computer-readable media. Additionally, the operation of a method or algorithm may reside as a set of code and instructions or any combination of code and instructions on a machine-readable medium and a computer-readable medium that may be incorporated into a computer program product.

[0326] Various modifications to the aspects described in this disclosure will be apparent to those skilled in the art, and the general principles defined herein may be applied to other aspects without departing from the spirit or scope of this disclosure. Therefore, the claims are not intended to be limited to the aspects shown herein, but are to be granted the widest scope consistent with this disclosure, the principles disclosed herein, and the novel features.

[0327] Additionally, those skilled in the art will readily recognize that the terms “upper” and “lower” are sometimes used to facilitate the description of the drawings and to indicate relative positioning on a correctly oriented page corresponding to the orientation of the drawings, and may not reflect the correct orientation of any device as implemented.

[0328] Some features described in the context of an independent aspect in this specification may also be implemented in combination in a single aspect. Conversely, various features described in the context of a single aspect may also be implemented individually or in any suitable sub-combination in multiple aspects. Furthermore, although features may be described as functioning in certain combinations and even originally claimed in this way, one or more features from the claimed combination may be removed from that combination in some cases, and the claimed combination may be for sub-combinations or variations thereof.

[0329] Similarly, although operations are depicted in a specific order in the figures, this should not be construed as requiring such operations to be performed in the specific order shown or in sequential order, or to perform all illustrated operations to achieve the desired result. Furthermore, the figures may schematically depict one or more example processes in the form of flowcharts. However, other operations not depicted may be incorporated into the schematically illustrated example processes. For example, one or more additional operations may be performed before, after, simultaneously with, or between any of the illustrated operations. In some contexts, multitasking and parallel processing are advantageous. Moreover, the separation of various system components in the described aspects should not be construed as requiring such separation in all aspects, and it should be understood that the described program components and systems can generally be integrated together in a single software product or packaged into multiple software products. Additionally, other aspects also fall within the scope of the appended claims. In some cases, the actions recited in the claims may be performed in a different order and still achieve the desired result.

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 being coupled to said one or more memories and configured to cause the UE to: Receive SSB configuration for the synchronization signal block (SSB) carrying the first synchronization information; Receive a reference signal indicating a second synchronization information that is simplified relative to the first synchronization information; as well as Measure the reference signal to obtain measurement information; Communication is sent in association with the measurement information; as well as Based on the transmission of the communication, the SSB is received according to the SSB configuration and the measurement of the reference signal.

2. The UE of claim 1, wherein the SSB is associated with an SSB location in the time domain and a first transmission mode, and in order for the UE to receive the reference signal, the one or more processors are configured to cause the UE to: The reference signal is received using a second transmission mode in at least a portion of the SSB location.

3. The UE according to claim 1, wherein the first synchronization information includes primary synchronization signal (PSS) information, secondary synchronization signal (SSS) information, and physical broadcast channel (PBCH) information, and The second synchronization information includes only the PSS information and the SSS information.

4. The UE according to claim 1, wherein the second synchronization information indicates symbol timing information and physical cell identifier.

5. The UE according to claim 1, wherein the second synchronization information indicates time slot timing information, the index of the reference signal, and the physical cell identifier.

6. The UE according to claim 1, wherein the second synchronization information includes only primary synchronization signal (PSS) information and secondary synchronization signal (SSS) information.

7. The UE according to claim 6, wherein the second synchronization information further includes third-level synchronization signal (TSS) information.

8. The UE of claim 1, wherein the SSB is associated with an SSB location in the time domain and a first transmission mode. The first transmission mode indicates the first time-domain position of the primary synchronization signal (PSS), the second time-domain position of the secondary synchronization signal (SSS), and the third time-domain position of the physical broadcast channel (PBCH). In order for the UE to receive the reference signal, the one or more processors are configured to cause the UE to: A second transmission mode is used in at least a portion of the SSB locations to receive at least the PSS and the SSS.

9. The UE according to claim 8, wherein the second transmission mode includes the PSS in the first time domain location and the SSS in the fourth time domain location.

10. The UE of claim 8, wherein the second transmission mode comprises only the PSS in the first time domain location and the SSS in the second time domain location.

11. 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 and configured to cause the network node to: Send SSB configuration for the synchronization signal block (SSB) carrying the first synchronization information; Send a reference signal indicating a second synchronization information that is simplified relative to the first synchronization information; as well as Communication is received in association with measurement information of the reference signal; as well as An SSB is sent based on the receipt of the communication, wherein the SSB is configured according to the SSB and the measurement information.

12. The network node of claim 11, wherein the SSB is associated with an SSB location in the time domain and a first transmission mode, and wherein, in order for the network node to transmit the reference signal, the one or more processors are configured to cause the network node to: The reference signal is transmitted using a second transmission mode in at least a portion of the SSB locations.

13. The network node of claim 11, wherein the first synchronization information includes primary synchronization signal (PSS) information, secondary synchronization signal (SSS) information, and physical broadcast channel (PBCH) information, and The second synchronization information includes only the PSS information and the SSS information.

14. The network node of claim 11, wherein the second synchronization information indicates symbol timing information and physical cell identifier.

15. The network node of claim 11, wherein the second synchronization information indicates time slot timing information, the index of the reference signal, and the physical cell identifier.

16. A method for wireless communication performed by a user equipment (UE), the method comprising: Receive SSB configuration for the synchronization signal block (SSB) carrying the first synchronization information; Receive a reference signal indicating a second synchronization information that is simplified relative to the first synchronization information; as well as Measure the reference signal to obtain measurement information; Communication is sent in association with the measurement information; as well as Based on the transmission of the communication, the SSB is received according to the SSB configuration and the measurement of the reference signal.

17. The method of claim 16, wherein the SSB is associated with an SSB location in the time domain and a first transmission mode. The first transmission mode indicates the first time-domain position of the primary synchronization signal (PSS), the second time-domain position of the secondary synchronization signal (SSS), and the third time-domain position of the physical broadcast channel (PBCH). The reception of the reference signal includes: A second transmission mode is used in at least a portion of the SSB locations to receive at least the PSS and the SSS.

18. The method of claim 17, wherein the reference signal comprises a first reference signal and a second reference signal, and wherein the first reference signal and the second reference signal are included in the SSB location.

19. The method of claim 18, wherein the second transmission mode indicates that a first portion of the SSB location includes the first reference signal and a second portion of the SSB location includes the second reference signal.

20. The method of claim 18, wherein the second transmission mode indicates that a first portion of the SSB location includes the PSS of the first reference signal and the second reference signal, and a second portion of the SSB location includes the SSS of the first reference signal and the second reference signal.

21. The method of claim 17, wherein the second transmission mode comprises the PSS in the first time domain location, the SSS in the fourth time domain location, and a three-level synchronization signal (TSS) in at least one of the first time domain location or the fourth time domain location.

22. The method of claim 21, wherein the PSS and the SSS are included in a first or more frequency domain resources of the reference signal, and the TSS is included in a second or more frequency domain resources of the reference signal.

23. The method of claim 21, wherein the TSS is frequency-division multiplexed with the PSS and the SSS.

24. The method of claim 21, wherein the PSS, the SSS, and the TSS are time-division multiplexed.

25. The method of claim 16, wherein receiving the reference signal comprises receiving the reference signal via a frequency, and The reception of the SSB includes receiving the SSB via the frequency.

26. The method of claim 16, wherein receiving the reference signal comprises: The reference signal is measured during the first measurement window.

27. The method according to claim 26, further comprising: The SSB is measured during a second measurement window, wherein the timing of the second measurement window is relative to the first measurement window.

28. The method of claim 16, wherein the communication includes a cell wake-up signal.

29. The method of claim 16, wherein the communication includes a measurement report indicating the measurement information.

30. A method for wireless communication performed by a network node, the method comprising: Send SSB configuration for the synchronization signal block (SSB) carrying the first synchronization information; Send a reference signal indicating a second synchronization information that is simplified relative to the first synchronization information; as well as Communication is received in association with measurement information of the reference signal; as well as An SSB is sent based on the receipt of the communication, wherein the SSB is configured according to the SSB and the measurement information.

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