SSB transmission

Abstract

Aspects of the present disclosure relate to SSB transmission. In one aspect, a UE determines half-frames for monitoring a synchronization signal and a set of physical broadcast channel (PBCH) blocks (SSB). The UE associates resources for wakeup signal (WUS) transmission with at least a subset of the set of SSBs. In this manner, resources for WUS transmissions may be associated with at least some of the SSBs to be monitored. A scheme for SSB transmission based on a request from a UE may be designed.

Description

Technical Field

[0001] This disclosure relates to wireless communication, and more particularly to user equipment (UE), base station, processor, method, and nontransitory computer-readable medium for transmission of synchronization signals and physical broadcast channel (PBCH) blocks (SSB). Background Technology

[0002] A wireless communication system may include one or more network communication devices (such as base stations), which may also be referred to as eNodeB (eNB), next-generation NodeB (gNB), or other suitable terms. Each network communication device (such as a base station) may support wireless communication for one or more user communication devices, which may also be referred to as user equipment (UE), or other suitable terms. The wireless communication system may support wireless communication with one or more user communication devices by utilizing the resources of the wireless communication system (e.g., time resources (e.g., symbols, time slots, subframes, frames, etc.) or frequency resources (e.g., subcarriers, carriers)). Additionally, the wireless communication system may support wireless communication across a variety of radio access technologies, including third-generation (3G) radio access technology, fourth-generation (4G) radio access technology, fifth-generation (5G) radio access technology, and other suitable radio access technologies other than 5G (e.g., sixth-generation (6G)).

[0003] In wireless communication systems, when a UE is accessing the network, it searches for synchronization signals and Physical Broadcast Channel (PBCH) blocks (SSBs) to obtain the Physical Cell Identifier (ID), achieve downlink (DL) synchronization, and acquire the Master Information Block (MIB). The SSB is also used by the UE for channel quality measurements. The UE can use the MIB in the SSB to obtain the configuration for detecting System Information Block Type 1 (SIB1). Then, the UE can use these configurations to detect SIB1 to obtain remaining system information. To meet the various improvements and requirements brought about by the development of wireless communication technologies, further research on SSB transmission is still needed. Summary of the Invention

[0004] This disclosure relates to methods, apparatus, and systems supporting SSB transmission. By associating resources used for wake-up signal (WUS) transmission with at least some SSBs in a set of SSBs sent by the base station, a scheme for SSB transmission based on requests from the UE can be designed, thereby reducing power consumption for SSB transmission.

[0005] In a first aspect of this solution, the UE determines a half-frame for monitoring the synchronization signal and Physical Broadcast Channel (PBCH) block (SSB) set. The UE associates resources used for Wake-up Signal (WUS) transmission with at least one subset of the SSB set. In this way, resources for WUS transmission can be associated with at least some of the SSBs to be monitored. A scheme for SSB transmission based on requests from the UE can be designed.

[0006] In some implementations of the methods and apparatus described herein, the SSB set may include one of the following: the maximum number of supported SSBs; or the SSBs configured by the base station.

[0007] In some implementations of the methods and apparatus described herein, the SSB set may include at least one of the following: at least one SSB of a first type, wherein the SSB of the first type is associated with a corresponding System Information Block Type 1 (SIB1); at least one SSB of a second type, wherein the SSB of the second type is not associated with SIB1; or at least one SSB of a third type, wherein the SSB of the third type is not associated with SIB1.

[0008] Some implementations of the methods and apparatus described herein may also include at least one of the following: monitoring at least one SSB of a first type in a first cycle; monitoring at least one SSB of a second type in a first cycle; or monitoring at least one SSB of a third type in a second cycle.

[0009] Some implementations of the methods and apparatus described herein may also include: monitoring the SSB set from the base station in a half-frame; and determining the type of SSB from the SSB set.

[0010] In some implementations of the methods and apparatus described herein, the type of SSB can be determined based on the configuration from the base station.

[0011] Some implementations of the methods and apparatus described herein may further include determining, based on the configuration, at least one of the following in the SSB set: a first subset of SSBs including at least one SSB of a first type; a second subset of SSBs including at least one SSB of a second type; and a third subset of SSBs including at least one SSB of a third type.

[0012] In some implementations of the methods and apparatus described herein, the type of SSB can be determined based on one of the following: the structure of the SSB; or the information carried by the SSB.

[0013] In some implementations of the methods and apparatus described herein, determining the type of an SSB based on its structure may include: determining the type of an SSB as a second type if the SSB is one of the following: a non-cell-defined SSB or an SSB used only for channel quality measurements.

[0014] In some implementations of the methods and apparatus described herein, determining the type of an SSB based on its structure may include: identifying the SSB as a third type if the SSB is one of the following: a partial SSB, a non-cell-defined SSB, or an SSB used solely for channel quality measurements.

[0015] In some implementations of the methods and apparatus described herein, the information carried by the SSB can be indicated in the Master Information Block (MIB) within the SSB.

[0016] Some implementations of the methods and apparatus described herein may further include: determining channel quality based on SSBs received from a base station; and, if the channel quality is above a quality threshold, transmitting WUS to the base station using resources from the resources available for WUS transmission.

[0017] In some implementations of the methods and apparatus described herein, the SSB is a second type of SSB, and the WUS may include a request for SIB1 transmission.

[0018] In some implementations of the methods and apparatus described herein, the SSB is a third type of SSB and is monitored in a second cycle, and the WUS may include one of the following: a request for an SSB transmission with a first cycle; or a request for both an SSB transmission with a first cycle and an SIB1 transmission.

[0019] In some implementations of the methods and apparatus described herein, sending a WUS may include: sending a WUS to a base station when the channel quality is higher than a first quality threshold and lower than a second quality threshold, the WUS including a request for SSB transmission with a first period; and sending a WUS to a base station when the channel quality is higher than the second quality threshold, the WUS including a request for SSB transmission with a first period and SIB1 transmission.

[0020] In some implementations of the methods and apparatus described herein, when the SSB is a second type of SSB, the resource is a first resource, and the WUS may include a request for SIB1 transmission.

[0021] In some implementations of the methods and apparatus described herein, where the SSB is a third type of SSB and is monitored in a second cycle, the resource is a second resource, and the WUS may include a request for an SSB transmission with a first cycle.

[0022] In some implementations of the methods and apparatus described herein, where the SSB is a third type of SSB and is monitored in a second cycle, the resource is a third resource, and the WUS may include requests for SSB transmissions and SIB1 transmissions with a first cycle.

[0023] Some implementations of the methods and apparatus described herein may also include receiving transmissions from a base station based on a request within a time period.

[0024] In some implementations of the methods and apparatus described herein, a half-frame may be determined based on a period configured by the base station or based on a predefined period. Some implementations of the methods and apparatus described herein may also include determining resources for WUS transmission based on the determined half-frame and a time offset configured by the base station or a predefined time offset.

[0025] Some implementations of the methods and apparatus described herein may further include determining resources for WUS transmission based on a period configured by the base station or a predefined period. A half-frame may be determined based on the determined resources for WUS transmission and a time offset configured by the base station or a predefined time offset.

[0026] In some implementations of the methods and apparatus described herein, associating resources for WUS transport with at least a subset of the SSB set may include associating resources for WUS transport with the maximum number of supported SSBs.

[0027] In some implementations of the methods and apparatus described herein, resources for WUS transport can be associated with the maximum number of supported SSBs based on the index of the SSB in the maximum number of supported SSBs.

[0028] In some implementations of the methods and apparatus described herein, at least one subset of the SSB set may include at least one of the following: a second subset of the SSB or a third subset of the SSB.

[0029] In some implementations of the methods and apparatus described herein, at least one subset of the SSB set may include a second subset and a third subset of the SSBs. Associating resources used for WUS transmission with at least one subset of the SSB set may include: associating a first subset of resources used for WUS transmission with a second subset of the SSBs; and associating a second subset of resources used for WUS transmission with a third subset of the SSBs. The second resource subset may be located after the first resource subset in the time domain.

[0030] In some implementations of the methods and apparatus described herein, at least one subset of the SSB set may include a second subset and a third subset of the SSBs. Associating resources used for WUS transmission with at least one subset of the SSB set may include: associating a first subset of resources used for WUS transmission with the third subset of the SSBs; and associating a second subset of resources used for WUS transmission with the second subset of the SSBs. The second resource subset may be located after the first resource subset in the time domain.

[0031] In some implementations of the methods and apparatus described herein, at least one subset of the SSB set may include a second subset and a third subset of SSBs. Associating resources for WUS transport with at least one subset of the SSB set may include associating resources for WUS transport with at least one subset of the SSB set based on the index of the SSB in the maximum number of supported SSBs.

[0032] In a second aspect of this solution, the base station transmits a synchronization signal and a set of Physical Broadcast Channel (PBCH) blocks (SSBs) to the user equipment within a half-frame. The base station associates resources used for Wake-up Signal (WUS) transmission with at least a subset of the SSB sets. In this way, resources for WUS transmission can be associated with at least some of the transmitted SSBs. A scheme for SSB transmission based on requests from the UE can be designed, thereby reducing the power consumption of SSB transmission.

[0033] Some implementations of the methods and apparatus described herein may also include: using resources for WUS transmission to detect WUS from a user equipment.

[0034] In some implementations of the methods and apparatus described herein, the SSB set may include at least one of the following: a first subset of SSBs including at least one SSB of a first type, wherein the SSBs of the first type are associated with a corresponding System Information Block Type 1 (SIB1); a second subset of SSBs including at least one SSB of a second type, wherein the SSBs of the second type are not associated with SIB1; or a third subset of SSBs including at least one SSB of a third type, wherein the SSBs of the third type are not associated with SIB1.

[0035] In some implementations of the methods and apparatus described herein, transmitting an SSB set may include at least one of the following: transmitting a first subset of SSBs to a user equipment in a first cycle; transmitting a second subset of SSBs to a user equipment in a first cycle; or transmitting a third subset of SSBs to a user equipment in a second cycle.

[0036] Some implementations of the methods and apparatus described herein may also include sending a configuration to a user equipment for determining the appropriate type of an SSB in the SSB set.

[0037] In some implementations of the methods and apparatus described herein, the type of SSB is associated with one of the following: the structure of the SSB; or the information carried by the SSB.

[0038] In some implementations of the methods and apparatus described herein, the type of SSB can be associated with the structure of the SSB. When the SSB is a Type II SSB, it can be transmitted as one of the following: a non-cell-defined SSB or an SSB used solely for channel quality measurements. When the SSB is a Type III SSB, it can be transmitted as one of the following: a partial SSB, a non-cell-defined SSB, or an SSB used solely for channel quality measurements.

[0039] In some implementations of the methods and apparatus described herein, the information carried by the SSB can be indicated in the Master Information Block (MIB) within the SSB.

[0040] In some implementations of the methods and apparatus described herein, the SSB may be a second type of SSB, and the WUS may include a request for SIB1 transmission.

[0041] In some implementations of the methods and apparatus described herein, the SSB may be a third type of SSB and transmitted in a second period, and the WUS may include one of the following: a request for an SSB transmission with a first period; or a request for an SSB transmission with a first period and an SIB1 transmission.

[0042] In some implementations of the methods and apparatus described herein, monitoring WUS may include: when the SSB is a second type of SSB, monitoring WUS from a user equipment using a first resource among the resources for WUS transmissions, the WUS including requests for SIB1 transmissions.

[0043] In some implementations of the methods and apparatus described herein, monitoring WUS may include: when the SSB is a third type of SSB and is transmitted in a second cycle, monitoring WUS from a user equipment using a second resource among the resources for WUS transmission, the WUS including requests for SSB transmissions with a first cycle.

[0044] In some implementations of the methods and apparatus described herein, monitoring WUS may include: when the SSB is a third type of SSB and is transmitted in a second cycle, using a third resource among the resources for WUS transmission, monitoring WUS from a user equipment, the WUS including requests for SSB transmissions and SIB1 transmissions having a first cycle.

[0045] Some implementations of the methods and apparatus described herein may also include sending transmissions to a user equipment based on a request within a time period.

[0046] Some implementations of the methods and apparatus described herein may also include: determining a half-frame for transmitting the SSB set based on a period; and determining resources for WUS transmission based on the determined half-frame and a time offset.

[0047] Some implementations of the methods and apparatus described herein may also include: determining resources for WUS transmission based on a period; and determining half-frames for transmitting SSB sets based on the determined resources for WUS transmission and a time offset.

[0048] In some implementations of the methods and apparatus described herein, at least one subset of the SSB may include at least one of the following: a second subset of the SSB, or a third subset of the SSB.

[0049] In some implementations of the methods and apparatus described herein, at least one subset of the SSB set may include a second subset and a third subset of the SSBs. Associating resources used for WUS transmission with at least one subset of the SSB set may include: associating a first subset of resources used for WUS transmission with a second subset of the SSBs; and associating a second subset of resources used for WUS transmission with a third subset of the SSBs. The second resource subset may be located after the first resource subset in the time domain.

[0050] In some implementations of the methods and apparatus described herein, at least one subset of the SSB set may include a second subset and a third subset of the SSBs. Associating resources used for WUS transmission with at least one subset of the SSB set may include: associating a first subset of resources used for WUS transmission with the third subset of the SSBs; and associating a second subset of resources used for WUS transmission with the second subset of the SSBs. The second resource subset may be located after the first resource subset in the time domain.

[0051] In some implementations of the methods and apparatus described herein, at least one subset of the SSB set may include a second subset and a third subset of SSBs. Associating resources for WUS transport with at least one subset of the SSB set may include associating resources for WUS transport with at least one subset of the SSB set based on the index of the SSB in the maximum number of supported SSBs. Attached Figure Description

[0052] Figure 1A An example of a wireless communication system supporting SSB transmission according to various aspects of this disclosure is illustrated.

[0053] Figure 1B The diagram illustrates example structures of SSB in the time and frequency domains in the relevant solutions.

[0054] Figure 1C The diagram illustrates an example of a complete set of SSBs that are periodically sent in a relevant solution.

[0055] Figure 1D The diagram illustrates a complete set of SSBs and an associated SIB1 in the relevant solution.

[0056] Figure 2 An example signaling diagram illustrating an example process supporting SSB transmission according to various aspects of this disclosure is shown.

[0057] Figure 3A Example diagrams are shown of SSB and / or SIB1 transmissions according to various aspects of this disclosure, and associated resources for WUS transmissions.

[0058] Figure 3B An example diagram illustrating the regulation of SSB and / or SIB1 transmission based on WUS transmission according to various aspects of this disclosure is shown.

[0059] Figures 4 to 5 Examples of devices supporting SSB transmission according to various aspects of this disclosure are illustrated.

[0060] Figures 6 to 7 An example of a processor supporting SSB transmission according to various aspects of this disclosure is illustrated.

[0061] Figures 8 to 11 A flowchart illustrating a method for supporting SSB transmission according to various aspects of this disclosure is shown. Detailed Implementation

[0062] The principles of this disclosure will now be described with reference to some embodiments. It should be understood that these embodiments are described for illustrative purposes only and to assist those skilled in the art in understanding and implementing this disclosure, and do not imply any limitation on the scope of this disclosure. The disclosure described herein can be implemented in various ways other than those described below.

[0063] In the following description and claims, unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure pertains.

[0064] References to "an embodiment," "example embodiment," "embodiment," "some embodiments," etc., in this disclosure indicate that the embodiments(s) described may include a particular feature, structure, or characteristic, but not every embodiment necessarily must include that particular feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same(s) embodiments(s). Moreover, when a particular feature, structure, or characteristic is described in connection with an embodiment, those skilled in the art will recognize that in conjunction with other embodiments (whether explicitly described or not) such a feature, structure, or characteristic may affect such a feature, structure, or characteristic within the scope of their knowledge.

[0065] It should be understood that although the terms “first” and “second” may be used herein to describe various elements, these elements should not be limited by these terms. These terms are used only to distinguish one element from another. For example, a first element may also be referred to as a second element without departing from the scope of the embodiments, and similarly, a second element may also be referred to as a first element. As used herein, the term “and / or” includes any and all combinations of one or more of the listed terms.

[0066] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments. Unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “the” used herein are also intended to include the plural forms. Furthermore, it should be understood that the terms “comprising,” “including,” “having,” “comprising,” and / or “containing,” when used herein, specify the presence of the stated features, elements, and / or components, but do not exclude the presence or addition of one or more other features, elements, components, and / or combinations thereof. For example, the term “comprising” and variations thereof should be understood as open terms meaning “including, but not limited to.” The term “based on” should be understood as “at least partially based on.” The terms “one embodiment” and “embodiment” should be understood as “at least one embodiment.” The term “another embodiment” should be understood as “at least one other embodiment.” The use of expressions such as “A and / or B” can mean “A only” or “B only” or “both A and B.” Other explicit and implicit definitions may be included below.

[0067] As used herein, the term "communication network" refers to a network that conforms to any suitable communication standard, such as 5G NR, LTE, LTE-A Advanced, Wideband Code Division Multiple Access (WCDMA), High-Speed ​​Packet Access (HSPA), Narrowband Internet of Things (NB-IoT), etc. Furthermore, communication between terminal devices and network devices in a communication network can be performed according to any suitable generation of communication protocol, including but not limited to first-generation (1G), second-generation (2G), 2.5G, 2.75G, third-generation (3G), fourth-generation (4G), 4.5G, fifth-generation (5G) communication protocols and / or any other currently known or to be developed in the future. Embodiments of this disclosure can be applied to various communication systems. Given the rapid development of communications, there will be future types of communication technologies and systems in which this disclosure can be embodied. This should not be construed as limiting the scope of this disclosure to the systems described above.

[0068] As used herein, the term "network device" generally refers to a node in a communication network through which terminal devices can access the network and receive services. Network devices can refer to base stations (BS) or access points (APs), such as Node B (NodeB or NB), Radio Access Network (RAN) nodes, Evolved Node B (eNodeB or eNB), NR NB (also known as gNB), Remote Radio Unit (RRU), Radio Header (RH), infrastructure equipment for V2X (Vehicle-to-Everything) communication, Transmitter Receiver Point (TRP), Receiver Point (RP), Remote Radio Header End (RRH), relay, Integrated Access and Backhaul (IAB) nodes, low-power nodes (such as femtoBS, picoBS, etc.), depending on the terminology and technology applied.

[0069] As used herein, the term "terminal device" generally refers to any terminal device capable of wireless communication. By way of example and not limitation, a terminal device may also be referred to as a communication device, user equipment (UE), end user equipment, subscriber station (SS), unmanned aerial vehicle (UAV), portable subscriber station, mobile station (MS), or access terminal (AT). Terminal devices may include, but are not limited to, mobile phones, cellular phones, smartphones, Voice over IP (VoIP) phones, wireless local loop phones, tablets, wearable terminal devices, personal digital assistants (PDAs), portable computers, desktop computers, image capture terminal devices (such as digital cameras), gaming terminal devices, music storage and playback devices, in-vehicle wireless terminal devices, wireless endpoints, mobile stations, laptop embedded devices (LEEs), laptop installed devices (LMEs), USB dongles, smart devices, wireless customer premises equipment (CPEs), Internet of Things (IoT) devices, watches or other wearable devices, head-mounted displays (HMDs), vehicles, drones, medical devices (e.g., remote surgical equipment), industrial equipment (e.g., robots and / or other wireless devices operating in industrial and / or automated processing chain environments), consumer electronic devices, and devices operating on commercial and / or industrial wireless networks. In the following description, the terms "terminal device," "communication device," "terminal," "user equipment," and "UE" are used interchangeably.

[0070] As described above, during the initial NR access process, the UE uses the SSB in NR to obtain the physical cell ID, achieve DL synchronization, and obtain the MIB. The UE can obtain the configuration for SIB1 detection based on the MIB in the SSB. The SSB can also be used for channel quality measurement. The base station can periodically transmit the SSB and / or SIB1. Enhancements to SSB transmission require further investigation. Various aspects of this disclosure are described in the context of a wireless communication system.

[0071] Figure 1AAn example of a wireless communication system 100 supporting SSB transmission according to various aspects of this disclosure is illustrated. The wireless communication system 100 may include one or more network entities 102 (also referred to as network devices (NEs)), one or more UEs 104, a core network 106, and a packet data network 108. The wireless communication system 100 may support various radio access technologies. In some implementations, the wireless communication system 100 may be a 4G network, such as an LTE network or an Advanced LTE (LTE-A) network. In some other implementations, the wireless communication system 100 may be a 5G network, such as an NR network. In other implementations, the wireless communication system 100 may be a combination of 4G and 5G networks, or other suitable radio access technologies, including IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), and IEEE 802.20. The wireless communication system 100 may support radio access technologies other than 5G. Additionally, the wireless communication system 100 may support technologies such as Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), or Code Division Multiple Access (CDMA).

[0072] One or more network entities 102 may be distributed throughout a geographic area to form a wireless communication system 100. One or more network entities among the network entities 102 described herein may be, include, or may be referred to as network nodes, base stations, network elements, radio access networks (RANs), base transceiver stations, access points, NodeBs, eNodeBs (eNBs), next-generation NodeBs (gNBs), or other suitable terms. Network entities 102 and UE 104 may communicate via communication link 110, which may be a wireless or wired connection. For example, network entities 102 and UE 104 may perform wireless communication (e.g., receive signaling, send signaling) via a Uu interface.

[0073] Network entity 102 can provide a geographic coverage area 112 for which it can support services (e.g., voice, video, packet data, messaging, broadcasting, etc.) for one or more UEs 104 within the geographic coverage area 112. For example, network entity 102 and UE 104 can support wireless communication of signals associated with services (e.g., voice, video, packet data, messaging, broadcasting, etc.) based on one or more wireless access technologies. In some implementations, network entity 102 can be mobile, for example, a satellite associated with a non-terrestrial network. In some implementations, different geographic coverage areas 112 associated with the same or different radio access technologies can overlap, but different geographic coverage areas 112 can be associated with different network entities 102. The information and signals described herein can be represented using any of a variety of different technologies and techniques. For example, data, instructions, commands, information, signals, bits, symbols, and chips that may be referenced throughout the description can be represented by voltage, current, electromagnetic waves, magnetic fields or particles, light fields or particles, or any combination thereof.

[0074] One or more UEs 104 may be distributed throughout the geographic area of ​​the wireless communication system 100. UE 104 may include or be referred to as a mobile device, wireless device, remote device, remote unit, handheld device, subscriber device, or some other suitable term. In some implementations, UE 104 may be referred to as a unit, station, terminal, or client, etc. Alternatively or additionally, UE 104 may be referred to as an Internet of Things (IoT) device, an Internet of Everything (IoE) device, or a Machine-Type Communication (MTC) device, etc. In some implementations, UE 104 may be stationary within the wireless communication system 100. In some other implementations, UE 104 may be mobile within the wireless communication system 100.

[0075] One or more UEs 104 can be devices of different forms or with different capabilities. Figure 1A The diagram illustrates some examples of UE 104. UE 104 can communicate with various types of devices, such as network entity 102, other UEs 104, or network devices (e.g., core network 106, packet data network 108, relay equipment, integrated access and backhaul (IAB) node, or another network device). Figure 1A As shown. Alternatively or concurrently, UE 104 may support communication with other network entities 102 or UE 104 that may act as relays in wireless communication system 100.

[0076] UE 104 can also support direct wireless communication with other UE 104s via communication link 114. For example, UE 104 can support direct wireless communication with another UE 104 via a device-to-device (D2D) communication link. In some implementations, such as vehicle-to-vehicle (V2V) deployments, vehicle-to-everything (V2X) deployments, or cellular V2X deployments, communication link 114 may be referred to as a side link. For example, UE 104 can support direct wireless communication with another UE 104 via a PC5 interface.

[0077] Network entity 102 may support communication with core network 106 or with another network entity 102, or both. For example, network entity 102 may interface with core network 106 via one or more backhaul links 116 (e.g., via S1, N2, N2, or another network interface). Network entities 102 may communicate with each other via backhaul links 116 (e.g., via X2, Xn, or another network interface). In some implementations, network entities 102 may communicate directly with each other (e.g., between network entities 102). In some other implementations, network entities 102 may communicate with each other or indirectly (e.g., via core network 106). In some implementations, one or more network entities 102 may include sub-components, such as access network entities, which may be examples of access node controllers (ANCs). An ANC may communicate with one or more UEs 104 via one or more other access network transport entities (which may be referred to as radio headends, smart radio headends, or transmit-receive points (TRPs)).

[0078] In some implementations, network entity 102 can be configured in a decomposed architecture that can utilize protocol stacks physically or logically distributed across two or more network entities 102, such as an Integrated Access Backhaul (IAB) network, Open RAN (O-RAN) (e.g., a network configuration sponsored by the O-RAN Alliance), or Virtualized RAN (vRAN) (e.g., Cloud RAN (C-RAN)). For example, network entity 102 may include one or more of the following: Central Unit (CU), Distributed Unit (DU), Radio Unit (RU), RAN Intelligent Controller (RIC) (e.g., Near Real-Time RIC, Non-Real-Time RIC), Service Management and Orchestration (SMO) system, or any combination thereof.

[0079] An RU can also be referred to as a radio headend, intelligent radio headend, remote radio headend (RRH), remote radio unit (RRU), or transmit-receive point (TRP). In a decomposed RAN architecture, one or more components of network entity 102 can be co-located, or one or more components of network entity 102 can be located in distributed locations (e.g., separate physical locations). In some implementations, one or more network entities 102 in a decomposed RAN architecture can be implemented as virtual units (e.g., virtual CU (VCU), virtual DU (VDU), virtual RU (VRU)).

[0080] The functional decomposition between CU, DU, and RU can be flexible and can support different functions based on the functions performed at the CU, DU, or RU (e.g., network layer functions, protocol layer functions, baseband functions, radio frequency functions, and any combination thereof). For example, a protocol stack functional decomposition can be used between the CU and DU, allowing the CU to support one or more layers of the protocol stack and the DU to support one or more different layers of the protocol stack. In some implementations, the CU can host upper-layer protocol layer (e.g., Layer 3 (L3), Layer 2 (L2)) functions and signaling (e.g., Radio Resource Control (RRC), Serving Data Adaptation Protocol (SDAP), Packet Data Convergence Protocol (PDCP)). The CU can connect to one or more DUs or RUs, and one or more DUs or RUs can host lower-layer protocol layer functions and signaling, such as Layer 1 (L1) (e.g., Physical (PHY) layer) or L2 (e.g., Radio Link Control (RLC) layer, Media Access Control (MAC) layer), and each can be at least partially controlled by the CU 160.

[0081] Alternatively or concurrently, a functional split of the protocol stack can be employed between the DU and RU, allowing the DU to support one or more layers of the protocol stack and the RU to support one or more different layers of the protocol stack. The DU can support one or more different cells (e.g., via one or more RUs). In some implementations, the functional split between the CU and DU, or between the DU and RU, can be within a protocol layer (e.g., some functions of the protocol layer can be performed by one of the CU, DU, or RU, while other functions of the protocol layer are performed by different items in the CU, DU, or RU).

[0082] The CU can be further functionally divided into CU control plane (CU-CP) and CU user plane (CU-UP) functions. The CU can be connected to one or more DUs via mid-range communication links (e.g., F1, F1-c, F1-u), and the DUs can be connected to one or more RUs via fronthaul communication links (e.g., open fronthaul (FH) interfaces). In some implementations, the mid-range or fronthaul communication links can be implemented based on interfaces (e.g., channels) between layers of the protocol stack, each layer of the protocol stack being supported by a corresponding network entity 102 communicating via such communication links.

[0083] Core network 106 can support user authentication, access authorization, tracking, connectivity, and other access, routing, or mobility functions. Core network 106 can be an evolved packet core (EPC) or a 5G core (5GC), which may include control plane entities that manage access and mobility (e.g., a mobility management entity (MME), access and mobility management functions (AMF)) and user plane entities that route packets or interconnections to external networks (e.g., a serving gateway (S-GW), a packet data network (PDN) gateway (P-GW), or a user plane function (UPF)). In some implementations, the control plane entities may manage non-access stratum (NAS) functions, such as mobility, authentication, and bearer management (e.g., data bearers, signaling bearers, etc.) for one or more UEs 104 served by one or more network entities 102 associated with core network 106.

[0084] Core network 106 can communicate with packet data network 108 via one or more backhaul links 116 (e.g., via S1, N2, N2, or another network interface). Packet data network 108 may include application server 118. In some implementations, one or more UEs 104 may communicate with application server 118. UE 104 may establish a session (e.g., Protocol Data Unit (PDU) session, etc.) with core network 106 via network entity 102. Core network 106 can use the established session (e.g., an established PDU session) to route services (e.g., control information, data, etc.) between UE 104 and application server 118. A PDU session may be an example of a logical connection between UE 104 and core network 106 (e.g., one or more network functions of core network 106).

[0085] In the wireless communication system 100, network entity 102 and UE 104 can use the resources of the wireless communication system 100 (e.g., time resources (e.g., symbols, time slots, subframes, frames, etc.) or frequency resources (e.g., subcarriers, carriers)) to perform various operations (e.g., wireless communication). In some implementations, network entity 102 and UE 104 can support different resource structures. For example, network entity 102 and UE 104 can support different frame structures. In some implementations, such as in 4G, network entity 102 and UE 104 can support a single frame structure. In some other implementations, such as in 5G and other suitable radio access technologies, network entity 102 and UE 104 can support various frame structures (i.e., multiple frame structures). Network entity 102 and UE 104 can support various frame structures based on one or more digital technologies.

[0086] One or more digital technologies may be supported in the wireless communication system 100, and the digital technologies may include subcarrier spacing and cyclic prefix. The first digital technology (e.g., μ =0) can be associated with the first subcarrier spacing (e.g., 15 kHz) and a normal cyclic prefix. In some implementations, the first digital technique (e.g., ...) associated with the first subcarrier spacing (e.g., 15 kHz) is... μ =0) can utilize one time slot per subframe. Second digital technologies (e.g., μ =1) can be associated with the second subcarrier spacing (e.g., 30 kHz) and a normal cyclic prefix. The third digital technology (e.g., μ =2) can be associated with a third subcarrier spacing (e.g., 60 kHz) and a normal cyclic prefix or an extended cyclic prefix. A fourth digital technology (e.g., μ =3) can be associated with a fourth subcarrier spacing (e.g., 120 kHz) and a normal cyclic prefix. A fifth digital technology (e.g., μ =4) can be associated with the fifth subcarrier spacing (e.g., 240 kHz) and the normal cyclic prefix.

[0087] The time intervals of resources (e.g., communication resources) can be organized according to frames (also called radio frames). Each frame can have a duration, for example, 10 milliseconds (ms). In some implementations, each frame can include multiple subframes. For example, each frame can include 10 subframes, and each subframe can have a duration, for example, 1 ms. In some implementations, each frame can have the same duration. In some implementations, each subframe of a frame can have the same duration.

[0088] Alternatively or concurrently, the time intervals of resources (e.g., communication resources) can be organized according to time slots. For example, a subframe may include a certain number (e.g., quantity) of time slots. The number of time slots in each subframe may also depend on one or more digital technologies supported in the wireless communication system 100. For example, a first digital technology, a second digital technology, a third digital technology, a fourth digital technology, and a fifth digital technology (i.e., ...) associated with corresponding subcarrier intervals of 15 kHz, 30 kHz, 60 kHz, 120 kHz, and 240 kHz. μ =0、 μ =1、 μ =2、 μ =3、 μ =4) One time slot per subframe, two time slots per subframe, four time slots per subframe, eight time slots per subframe, and 16 time slots per subframe can be used, respectively. Each time slot can include a certain number (e.g., quantity) of symbols (e.g., OFDM symbols). In some implementations, the number (e.g., quantity) of time slots in a subframe can depend on the digital technique. For a normal cyclic prefix, a time slot can include 14 symbols. For an extended cyclic prefix (e.g., for a 60 kHz subcarrier spacing), a time slot can include 12 symbols. The relationship between the number of symbols per time slot, the number of time slots per subframe, and the number of time slots per frame for both normal and extended cyclic prefixes can depend on the digital technique. It should be understood that for the first digital technique (e.g., quantity) associated with the first subcarrier spacing (e.g., 15 kHz), μ The reference of =0 can be used interchangeably between subframes and time slots.

[0089] In the wireless communication system 100, the electromagnetic (EM) spectrum can be divided into various categories, frequency bands, frequency channels, etc., based on frequency or wavelength. For example, the wireless communication system 100 can support one or more operating frequency bands, such as frequency range names FR1 (410 MHz - 7.125 GHz), FR2 (24.25 GHz - 52.6 GHz), FR3 (7.125 GHz - 24.25 GHz), FR4 (52.6 GHz - 114.25 GHz), FR4a or FR4-1 (52.6 GHz - 71 GHz), and FR5 (114.25 GHz - 300 GHz). In some implementations, network entity 102 and UE 104 can perform wireless communication on one or more operating frequency bands. In some implementations, FR1 can be used by network entity 102 and UE 104, as well as other devices or apparatuses, for cellular communication services (e.g., control information, data). In some implementations, FR2 can be used by network entity 102 and UE 104, as well as other devices or apparatuses, for short-range, high-data-rate capabilities.

[0090] FR1 can be associated with one or more digital technologies (e.g., at least three digital technologies). For example, FR1 can be associated with the following: a first digital technology (e.g., μ =0), which includes a 15 kHz subcarrier spacing; a second digital technology (e.g., μ =1), which includes a 30 kHz subcarrier spacing; third digital technology (e.g., μ =2), which includes a subcarrier spacing of 60 kHz. FR2 can be associated with one or more digital technologies (e.g., at least two digital technologies). For example, FR2 can be associated with a third digital technology (e.g., μ =2), which includes a 60 kHz subcarrier spacing; fourth digital technology (e.g., μ =3), which includes a subcarrier spacing of 120 kHz.

[0091] For illustrative purposes and without implying any limitation, some embodiments of this disclosure will be described with reference to a scenario in which UE 104 monitors SSB transmissions from network entity 102. It should be understood that the disclosure described herein can be implemented in various ways other than those described below.

[0092] Figure 1B The diagram illustrates an example structure of the SSB in the time and frequency domains of a relevant solution. The SSB occupies four consecutive OFDM symbols in the time domain and 20 resource blocks (RBs) in the frequency domain (a total of 240 subcarriers). It consists of a primary synchronization signal (PSS), a secondary synchronization signal (SSS), and a physical broadcast channel (PBCH) carrying the MIB. The PSS / SSS occupies 12 RBs (including guard REs), and the PBCH occupies all 20 RBs.

[0093] Figure 1C The diagram illustrates an example of a complete set of SSBs periodically transmitted in a relevant solution. Network devices can transmit the complete SSB set in a beam-scan manner, where each SSB is transmitted by a specific beam. For example... Figure 1C As shown, the complete SSB set 120 can include six SSBs: SSB#0 120-1, SSB#1 120-2, SSB#2 120-3, SSB#3 120-4, SSB#4 120-5, and SSB#5 120-6. By applying beamforming to the SSBs, the coverage of the SSB transmission is enhanced. The SSBs are transmitted in a time-domain multiplexed manner. In either the first or second half of a 10ms frame, the complete SSB set 120 is always confined to a half-frame, i.e., 5ms. For a UE accessing the network, the UE can assume that the half-frame with the complete SSB set occurs at a period of two frames (i.e., 20ms).

[0094] Figure 1C The number of SSBs in the complete SSB set is for illustrative purposes only. A complete SSB set can include various numbers of SSBs transmitted periodically in a beam-scanning manner. The maximum number of SSBs supported for a specific frequency band (called Lmax) is predefined. For example, for bands below 3 GHz, Lmax = 4; for bands between 3 GHz and 6 GHz, Lmax = 8, and so on. However, the network device is free to select the SSBs that will actually be transmitted from the Lmax SSBs. From the UE's perspective, when detecting SSBs during initial access, the UE assumes that all Lmax SSBs have been transmitted because the UE is not provided with any configuration when detecting SSBs. Then, after the UE detects SIB1, the UE can obtain information about the actually transmitted SSBs through the configuration in SIB1 (i.e., ssb-PositionsInBurst). As defined in TS 38.331, for operations within a licensed spectrum, ssb-PositionsInBurst indicates the temporal position of the transmitted SS block within a half-frame, where the SS / PBCH block is as defined in Clause 4.1 of TS 38.213. The first / leftmost bit of ssb-PositionsInBurst corresponds to SS / PBCH block index 0, the second bit of ssb-PositionsInBurst corresponds to SS / PBCH block index 1, and so on. A value of 0 in the bitmap indicates that the corresponding SS / PBCH block is not transmitted, while a value of 1 indicates that the corresponding SS / PBCH block is transmitted.

[0095] After the UE detects the SSB, it can continue to detect the SIB1. The SIB1 carries configurations for purposes such as initial bandwidth portion, random access, paging, etc., which are the basis for the UE to access the network. The SIB1 (including the SIB1 Physical Downlink Control Channel (PDCCH) and the SIB1 Physical Data Sharing Channel (PDSCH)) is transmitted in beams, and the network device needs to send the SIB1 for each SSB that is actually transmitted. Figure 1D The diagram illustrates a complete set of SSBs and an associated SIB1 in the relevant solution. (See example diagram.) Figure 1DAs shown, the complete SSB set 120 may include SSB#0 120-1, SSB#1 120-2, SSB#2 120-3, SSB#3 120-4, SSB#4 120-5, and SSB#5 120-6. A set of SIB1 is transmitted for the complete SSB set 120. For each SSB transmitted using a specific beam, there is an associated SIB1 transmitted using the same beam. For example, SSB#0 120-1 may include a configuration for detecting SIB1 PDCCH 131-1, and SIB1 PDCCH 131-1, as well as SIB1 PDSCH 132-1 scheduled by SIB1 PDCCH 131-1, are transmitted using the same beam as SSB#0 120-1. Similarly, SIB1 PDCCH 131-2 and SIB1 PDSCH 132-2, scheduled by SIB1 PDCCH 131-2, are transmitted using the same beam as SSB#1 120-2; SIB1 PDCCH 131-3 and SIB1 PDSCH 132-3, scheduled by SIB1 PDCCH 131-3, are transmitted using the same beam as SSB#2 120-3; SIB1 PDCCH 131-4 and SIB1 PDSCH 132-4, scheduled by SIB1 PDCCH 131-4, are transmitted using the same beam as SSB#3 120-4; SIB1 PDCCH 131-5 and SIB1 PDSCH 132-5, scheduled by SIB1 PDCCH 131-5, are transmitted using the same beam as SSB#4 120-5; and SIB1 PDCCH 131-6, and SIB1 PDSCH 132-6 scheduled by SIB1 PDCCH 131-6, are transmitted using the same beam as SSB#5120-6.

[0096] However, such SSB and SIB1 transmissions are power-consuming. One technique for reducing power consumption is on-demand SSB / SIB1 transmission, which means that the network device transmits SSB and / or SIB1 based on a UE request (by sending WUS to the network device in the uplink (UL) channel), rather than always transmitting them even when no UE is accessing the network. This can significantly reduce power consumption on the network device side, especially considering that SSB / SIB1 is transmitted using multiple beams. In this paper, the carrier in which SSB and / or SIB1 are transmitted based on a UE request can be referred to as an energy-saving (ES) carrier.

[0097] Further research is needed on channel / signal design solutions, as well as the behavior and processes of on-demand SSB / SIB1 and related signaling signals, such as the determination of WUS resources, the determination of SSBs associated with WUS resources, and the design of the association between WUS resources and SSBs.

[0098] In view of the foregoing and other aspects, embodiments of this disclosure provide a solution for SSB transmission. In one solution, the UE determines a half-frame for monitoring the SSB set. The UE associates resources used for Wake-up Signal (WUS) transmission with at least one subset of the SSB set. By associating resources used for WUS transmission with at least some SSBs in the SSB set transmitted by the base station, a scheme for SSB transmission based on requests from the UE can be designed, thereby reducing power consumption in SSB / SIB1 transmission.

[0099] Figure 2 An example signaling diagram of an example process 200 supporting SSB transmission according to various aspects of this disclosure is illustrated. For discussion purposes, reference will be made to... Figure 1A Describe process 200, and process 200 may involve, for example... Figure 1A The diagram shows UE 104 and network entity 102. Network entity 102 can also be referred to as base station 102. It should be understood that... Figure 2 The steps and their order are for illustrative purposes only and are not intended to be limiting. It should be understood that process 200 may also include additional boxes not shown and / or omit some boxes shown, and the scope of this disclosure is not limited in this respect.

[0100] like Figure 2 As shown, UE 104 determines 202 for monitoring the SSB set in half-frames. In some embodiments, the SSB set can be configured by base station 102. For example, base station 102 can send 206 SSB set 208 to UE 104 in half-frames. In other words, the SSB set can be the SSBs that will be sent by base station 102. UE 104 can be provided with information on the SSBs that can be sent by base station 102 in an ES carrier, for example, through configuration in a non-ES carrier. Then, UE 104 can assume that the complete SSB set contains the SSBs that can be sent by base station 102 and monitor 210 the SSBs that can be sent by base station 102 in half-frames. In some cases, UE 104 may not be provided with information on the SSBs that can be sent by base station 102 in an ES carrier. In this case, UE 104 can assume that the complete SSB set corresponds to the maximum supported Lmax number of SSBs (although some of these SSBs will never be sent by base station 102). Then, UE 104 can monitor 210 maximum supported Lmax SSBs in half a frame.

[0101] In some embodiments, the SSB in the SSB set can be a complete SSB including PSS / SSS and PBCH, such as Figure 1B As shown. Alternatively or additionally, some or all of the SSBs in the SSB set may be partial SSBs or simplified SSBs. For example, only the PSS / SSS is transmitted in the SSB transmission, while the PBCH is not transmitted. In another example, the PBCH may not carry meaningful configuration for accessing the carrier, such as the control resource set #0 (CORESET #0) configuration.

[0102] UE 104 associates resources used for WUS transmission with at least one subset of the SSB set 204. For example, UE 104 may determine resources used for WUS transmission and associate the determined resources with at least some SSBs in the SSB set 108 in the half-frame. If an SSB in the SSB set 108 is received, UE 104 may send WUS to base station 102 using the resources used for WUS transmission if needed. Base station 102 may associate resources used for WUS transmission with at least one subset of the SSB set 212. The association of resources used for WUS transmission with SSBs on the UE side and the base station side may be consistent. For example, after sending the associated SSB, base station 102 may use the resources used for WUS transmission to monitor WUS from UE 104. If WUS is received, base station 102 may adjust SSB transmission based on the WUS received from UE 104. It should be understood that association 212 may be executed before, during, or after transmission 206, and association 204 may be executed before, during, or after monitoring 210.

[0103] In this way, resources used for WUS transmission can be associated with at least some of the SSBs being transmitted. Schemes for SSB transmission based on requests from the UE can be designed, thereby reducing the power consumption of SSB transmission.

[0104] UE 104 can determine the timing of a half-frame for receiving a complete SSB set. The UE can determine the timing of a half-frame for receiving an active SSB (if present) between the timing of receiving a complete SSB set. In some embodiments, the timing for WUS transmission can be associated with the timing of a half-frame for receiving a complete SSB set. For example, UE 104 can first determine the timing of one signal / channel (e.g., the complete SSB set) and then accordingly determine the timing of another associated signal / channel (e.g., WUS).

[0105] As an example implementation, a half-frame can be determined based on a period configured by base station 102. Alternatively, the half-frame can be predefined. UE 104 can determine the resources for WUS transmission based on the determined half-frame and a time offset configured by base station 102 or a predefined time offset. For example, UE 104 can be provided with a configuration of a period for receiving a complete SSB set, based on which UE 104 can determine the time position of the SSB. Then, based on a predefined or configured time offset (which indicates the time interval between the start of a half-frame with a complete SSB set and the start of the WUS resource), UE 104 can determine the time position of the WUS resource. In other examples, UE 104 can determine the time position of the WUS resource such that the resource begins in the first UL time slot after the time offset. Similarly, base station 102 can determine a half-frame for transmitting an SSB set based on a period, and determine the resources for WUS transmission based on the determined half-frame and the time offset. In this disclosure, the terms "WUS resource" and "resources for WUS transmission" are used interchangeably.

[0106] In another example implementation, UE 104 can determine the resources for WUS transmission based on a period configured by base station 102 or a predefined period. A half-frame can be determined based on the determined resources for WUS transmission and a time offset configured by base station 102 or a predefined time offset. For example, UE 104 can be provided with a configuration of a period containing WUS resources, based on which UE 104 can determine the time position of the WUS resources. Then, based on a predefined or configured time offset (which indicates the time interval between the start of a half-frame with a complete SSB set and the start of the WUS resources), UE 104 can determine the time position of the SSBs. In other examples, UE 104 can determine the time position of the SSB transmission such that the resources begin in the first half-frame before the time offset. Similarly, base station 102 can determine the resources for WUS transmission based on a period and determine the half-frame for transmitting the SSB set based on the determined resources for WUS transmission and the time offset.

[0107] In some embodiments, the SSB set may include at least one of the following: at least one SSB of a first type, at least one SSB of a second type, or at least one SSB of a third type. A first-type SSB may be associated with a corresponding SIB1, which is transmitted by the network using the same beam as the associated SSB. A second-type SSB may not be associated with SIB1. A third-type SSB may not be associated with SIB1. As an example, a first-type, second-type, or third-type SSB may be a complete SSB, i.e., including both PSS / SSS and PBCH. In another example, a second-type SSB may be a partial SSB (e.g., only PSS / SSS is transmitted, but PBCH is not transmitted), a non-cell-defined SSB, or a measurement-only SSB (where the PBCH does not carry meaningful configuration for access carriers, e.g., CORESET#0 configuration). In another example, a third-type SSB may be a partial SSB, a non-cell-defined SSB, or a measurement-only SSB.

[0108] In some examples, UE 104 may monitor at least one SSB of a first type in a first cycle. Alternatively or additionally, UE 104 may monitor at least one SSB of a second type in a first cycle. Alternatively or additionally, UE 104 may monitor at least one SSB of a third type in a second cycle. In some examples, the second cycle may be longer than the first cycle. For example, the second cycle may be two, three, or four times the first cycle. In the following description, a first or second type SSB may be referred to as an "active SSB," and a third type SSB may be referred to as an "inactive SSB."

[0109] From the perspective of base station 102, the SSBs that can be transmitted by base station 102 may include at least one of active SSBs and inactive SSBs. An inactive SSB is an SSB that can be switched to an active SSB based on a UE request. More specifically, the complete SSB set may include at least one of the following: a first subset of SSBs containing a set of active SSBs, a second subset of SSBs containing another set of active SSBs, or a third subset of SSBs containing a set of inactive SSBs. For each SSB in the first subset of SSBs, an SIB1 is transmitted and associated with the SSB. The first subset of SSBs may be empty, for example, if there are no active SSBs. For each SSB in the second subset of SSBs, no associated SIB1 is transmitted. The second subset of SSBs may be empty, for example, if there are no active SSBs. For each SSB in the third subset of SSBs, no associated SIB1 is transmitted. If there are no inactive SSBs, the third subset of SSBs may be empty. In some embodiments, at least one subset of the SSB set may include at least one of the second subset or the third subset of SSBs.

[0110] A base station can transmit (multiple) active SSBs (if present) within a full SSB set in a first period, and (multiple) inactive SSBs within the full SSB set in a second period. In some examples, the second period can be the same as the period of a half-frame used to transmit the full SSB set. In other words, (multiple) inactive SSBs can be transmitted only within the half-frame used to transmit the full SSB set, while (multiple) active SSBs can be transmitted more frequently, i.e., transmitted within the half-frame and at time points between half-frames.

[0111] In some embodiments, UE 104 can monitor the SSB set in half a frame and determine the type of SSB in the SSB set. For example, when an SSB is detected, UE 104 needs to determine the type of the detected SSB (an active SSB with an associated SIB1, an active SSB without an associated SIB1, or an inactive SSB). Then, UE 104 can know whether and how to send a WUS to request SSB and / or SIB1 transmission.

[0112] In some embodiments, the type of SSB can be determined based on configuration from base station 102. For example, regarding how UE 104 determines the type of detected SSB, one solution is to provide UE 104 with information about a subset of SSBs through, for example, configuration in a non-ES carrier. The information about the subset of SSBs can be information about a subset of SSBs that base station 102 can transmit in an ES carrier. In some embodiments, UE 104 can determine, based on configuration, at least one of the following in the SSB set: a first subset of SSBs including at least one SSB of a first type; a second subset of SSBs including at least one SSB of a second type; and a third subset of SSBs including at least one SSB of a third type. For example, configuration in a non-ES carrier can indicate at least one of the following: the complete SSB set, the first subset of SSBs, the second subset of SSBs, or the third subset of SSBs. In one example, configuration can indicate both the first and second subsets of SSBs. If both the first and second subsets of SSBs are configured, the third subset of SSBs can be determined as an SSB in the complete SSB set that is not included in either the first or second subset of SSBs. If only the first subset of SSBs is configured, then the second subset of SSBs is empty, and the third subset of SSBs consists of SSBs in the complete SSB set, but these SSBs are not included in the first subset of SSBs. Alternatively, if only the second subset of SSBs is configured, then the first subset of SSBs is empty, and the third subset of SSBs consists of SSBs in the complete SSB set, but these SSBs are not included in the second subset of SSBs. In another example, the configuration can indicate both the second and third subsets of SSBs. If only the third subset of SSBs is configured, then the second subset of SSBs is empty, and the first subset of SSBs consists of SSBs in the complete SSB set, but these SSBs are not included in the third subset of SSBs. Based on these configurations, UE 104 can determine which SSBs are included in each SSB subset and thus know the type of the detected SSB based on the SSB subset to which the detected SSB belongs.

[0113] In some embodiments, the type of SSB can be determined based on the SSB's structure or function. In other words, in a half-frame in which the complete set of SSBs is received, UE 104 can determine the type of the detected SSB based on the SSB's structure or function.

[0114] In one example implementation, UE 104 can determine the type of an SSB as a second type if it is one of the following: a partial SSB, a non-cell-defined SSB, or an SSB used only for channel quality measurements. For example, if the detected SSB is a non-cell-defined SSB or an SSB used only for measurements, UE 104 can determine that SSB as an active SSB in the absence of an associated SIB1.

[0115] In another example implementation, UE 104 may determine the type of an SSB as a third type if it is one of the following: a partial SSB, a non-cell-defined SSB, or an SSB used only for channel quality measurements. For example, if the detected SSB is a partial SSB (e.g., only PSS / SSS is transmitted, but PBCH is not transmitted), a non-cell-defined SSB, or an SSB used only for measurements (where the PBCH does not carry meaningful configuration for the access carrier, e.g., CORESET#0 configuration), then UE 104 may determine that the SSB as an inactive SSB.

[0116] Alternatively or additionally, the type of SSB can be determined based on information carried by the SSB. In other words, in a half-frame in which the complete set of SSBs is received, UE 104 can determine the type of the detected SSB based on the information carried by the SSB. In some embodiments, the information carried by the SSB can be indicated in the MIB / PBCH of the SSB. For example, spare bits in the MIB can be used to indicate the type of the SSB. For example, UE 104 can determine, based on the configuration in the MIB / PBCH, such as using spare bits in the MIB, whether the detected SSB is an active SSB with an associated SIB1 or an active SSB without an associated SIB1. In another example, UE 104 can determine, based on the configuration in the MIB / PBCH, such as using spare bits, whether the SSB is an active SSB with an associated SIB1 or an inactive SSB. In yet another example, UE 104 can determine, based on the configuration in the MIB / PBCH, such as using spare bits, whether the SSB is an active SSB without an associated SIB1 or an inactive SSB.

[0117] WUS timing and / or WUS sequence can be associated with SSB. In other words, the WUS transmit / receive beam can be determined based on the associated SSB. This improves WUS detection performance on the base station side.

[0118] In some embodiments, when associating resources for WUS transmission with at least a subset of the SSB set, UE 102 may associate the resources for WUS transmission with the maximum number of supported SSBs. For example, if UE 104 does not know the SSB information, such as which SSBs in the complete SSB set are active and which are inactive, UE 104 may assume that the WUS timing and / or WUS sequence are associated with Lmax SSBs. In this case, if the WUS timing is associated with an active SSB (with an associated SIB1), the WUS timing will never be used for WUS transmission. However, the resources are not wasted because base station 102 can use them to send signals / channels to other UEs. In some implementations, resources for WUS transmission may be associated with the maximum number of supported SSBs based on the index of the SSB in the maximum number of supported SSBs.

[0119] In some embodiments, at least one subset of the SSB set may include at least one of a second subset or a third subset of the SSBs. If UE 104 can determine the second subset and / or the third subset of the SSBs, then UE 104 assumes that the WUS timing and / or WUS sequence are associated with the SSBs in the second subset and / or the third subset of the SSBs.

[0120] In some embodiments, at least one subset of the SSB set may include a second subset and a third subset of the SSBs. A first subset of resources used for WUS transport may be associated with a second subset of the SSBs, and a second subset of resources used for WUS transport may be associated with a third subset of the SSBs. Alternatively, a first subset of resources used for WUS transport may be associated with a third subset of the SSBs, and a second subset of resources used for WUS transport may be associated with a second subset of the SSBs. The second subset of resources may be located after the first subset of resources in the time domain. For example, the association of WUS resources and SSBs may be performed first for one subset of SSBs (e.g., the second subset of the SSBs), and then for another subset of SSBs (e.g., the third subset of the SSBs). One example is that the first M WUS opportunities in the WUS resource set are associated with the second subset of the SSBs, and the remaining N WUS opportunities are associated with the third subset of the SSBs.

[0121] In some embodiments, resources used for WUS transport can be associated with at least one subset of the SSB set based on the index of the SSB in the maximum number of supported SSBs. For example, this association can be performed uniformly for a second subset and a third subset of SSBs based on the index of the SSB in Lmax SSBs.

[0122] Figure 3A Example diagrams are illustrated of SSB and / or SIB1 transmissions according to various aspects of this disclosure, and associated resources for WUS transmissions. (See diagram for example.) Figure 3A As shown, the complete SSB set 120 can include SSB#0 120-1, SSB#1 120-2, SSB#2 120-3, SSB#3 120-4, SSB#4 120-5, and SSB#5 120-6. These SSBs are SSBs that can be sent by the base station. SSB#0 120-1 is a first-type SSB, that is, an active SSB with an associated SIB1 130-1. SSB#2 120-3 and SSB#4 120-5 are second-type SSBs, that is, active SSBs without an associated SIB1. SSB#1 120-2, SSB#3 120-4, and SSB#5 120-6 are third-type SSBs, that is, inactive SSBs. In other words, the first subset of SSBs contains SSB#0 120-1; the second subset contains SSB#{2,4}120-3 and 120-5; and the third subset contains SSB#{1,3,5}120-2, 120-4, and SSB#5 120-6. The period of the complete SSB set 120 can be 160ms, while the period of the active SSB can be 20ms.

[0123] WUS resource set 140 can be associated with full SSB set 120. A time offset can be predefined or configured between the start of full SSB set 120 and WUS resource set 140 to determine the time position of WUS resource set 140 or a half-frame containing full SSB set 140.

[0124] WUS resource set 140 may include WUS resources for active and inactive SSBs that are not associated with SIB1. Here, WUS resource set 140 contains 6 WUS opportunities. Each WUS resource (i.e., WUS opportunity) can be associated with a corresponding SSB. In one example, based on the indices of SSBs in the Lmax number of supporting SSBs, WUS resources can be associated with active and inactive SSBs of SIB1 that are not associated with SIB1 in the full SSB set. A second subset of SSBs contains SSB#{2,4}, and a third subset of SSBs contains SSB#{1,3,5}, so the associations can be performed in the order {1,2,3,4,5}. Figure 3AAs shown, WUS resource 140-2 is used for WUS transmission corresponding to SSB#1 120-2; WUS resource 140-3 is used for WUS transmission corresponding to SSB#2 120-3; WUS resource 140-4 is used for WUS transmission corresponding to SSB#3 120-4; WUS resource 140-5 is used for WUS transmission corresponding to SSB#4 120-5; and WUS resource 140-6 is used for WUS transmission corresponding to SSB#5 120-6.

[0125] Back Figure 2 In some embodiments, if UE 104 receives an SSB from base station 102, UE 104 may send a WUS to base station 102 when necessary. In some example implementations, the SSB is a second type of SSB, and the WUS may include a request for an SIB1 transmission. In some example implementations, the SSB is a third type of SSB and is monitored with a second period, and the WUS may include a request for an SSB transmission with a first period. In some example implementations, the SSB is a third type of SSB and is monitored with a second period, and the WUS may include a request for both an SSB transmission with a first period and an SIB1 transmission. Base station 102 may send SSB transmissions and / or SIB1 transmissions based on the requests.

[0126] UE 104 can determine channel quality (e.g., reference signal received power or signal-to-interference-plus-noise ratio) based on measurements of SSBs received from base station 102. If the channel quality of the received SSB is higher than a quality threshold, UE 104 can send a WUS to base station 102 using resources from the resources available for WUS transmission. In some example implementations, if the channel quality is higher than a first quality threshold and lower than a second quality threshold, UE 104 can send a WUS to base station 102 including a request for SSB transmission with a first period. If the channel quality of the received SSB is higher than the second quality threshold, UE 104 can send a WUS to base station 102 including a request for SSB transmission with a first period and SIB1 transmission.

[0127] For example, a reference signal received power (RSRP) threshold can be configured for UE 104 to determine whether it is necessary to request base station 102 to adjust SSB and / or SIB1 transmission. If the detected RSRP of an SSB is below the threshold, UE 104 can move to another SSB.

[0128] If the RSRP of the detected SSB is greater than the threshold, and if there is an SIB1 associated with the detected SSB, then UE 104 will no longer request SSB and / or SIB1 transmission. UE 104 will detect SIB1 and access the network in the conventional manner.

[0129] If the RSRP of the detected SSB is greater than a threshold, and there is no SIB1 associated with the SSB, then UE 104 may send a WUS to request SIB1 transmission, that is, request base station 102 to send the SIB1 associated with the detected SSB. In other words, if the RSRP of the detected SSB is greater than the threshold, the detected second type of SSB can be switched to the first type. In some implementations, the WUS may include an indication of a request for SIB1 transmission.

[0130] If the RSRP of a detected SSB is greater than a threshold and the SSB is an inactive SSB, UE 104 will send a WUS signal to request SSB transmission only, that is, request base station 102 to change the inactive SSB to an active SSB without an associated SIB1; or request both SSB and SIB1 transmission, that is, request base station 102 to change the inactive SSB to an active SSB with an associated SIB1. In other words, if the RSRP of a detected SSB is greater than a threshold, the detected third-type SSB can be switched to either the first or second type. When UE 104 needs to further measure SSBs, UE 104 can request SSB transmission only (i.e., switch the detected third-type SSB to the second type). When UE 104 needs, for example, to access a cell for data transmission, UE 104 can request both SSB and SIB1 transmission, that is, switch the detected third-type SSB to the first type.

[0131] As an example, two different RSRP thresholds can be configured for UE 104 to send WUS: a first RSRP threshold for requesting only SSB transmission (i.e., switching detected third-type SSBs to second-type), and a second RSRP threshold for requesting both SSB and SIB1 transmission (i.e., switching detected third-type SSBs to first-type). A second RSRP threshold can also be configured for UE 104 to request SIB1 transmission (i.e., switching detected second-type SSBs to first-type). The RSRP threshold for requesting only SSB transmission can be lower than the RSRP threshold for requesting both SSB and SIB1 transmission or requesting SIB1 transmission. UE 104 may need to measure (and report) channel states where the RSRP is greater than the first RSRP threshold for more than one SSB.

[0132] Figure 3B The illustration shows an example diagram of the adjustment of SSB and / or SIB1 transmission based on WUS transmission according to various aspects of this disclosure. The same reference numerals are used to indicate... Figure 3B The description in the middle has the same Figure 3A Elements or components that perform the same operations as those described in the previous section will be omitted from the detailed description.

[0133] Each WUS timing is associated with SSBs in the second subset and the third subset of SSBs. A first UE in the network can measure the complete SSB set and find that the RSRP of SSB#2 120-3 is greater than a threshold. Then, the first UE can send a WUS in the associated WUS timing (i.e., using the associated WUS resource 140-3) to request base station 102 to send SSB#2 120-3 and the associated SIB1 130-2. A second UE can measure the complete SSB set and find that the RSRP of SSB#5 120-6 is greater than a threshold. Then, the second UE can send a WUS in the associated WUS timing (i.e., using the associated WUS resource 140-6) to request base station 102 to send only SSBs within a 20ms period.

[0134] In some embodiments, base station 102 may transmit SSB and / or SIB1 transmissions based on a request within a time period. In other words, on-demand SSB / SIB1 transmissions may be performed for a duration starting from the request from the UE. For example, after sending WUS to base station 102, UE 104 may assume that base station 102 will transmit SSB and / or SIB1 based on the UE's request within a time period. This time period may be the same regardless of what is requested, or it may be configured separately for requesting SIB1, requesting SSB, or requesting both SSB and SIB1.

[0135] In some embodiments, to differentiate the purpose of WUS, separate WUS timings and / or WUS sequences can be determined for requesting SIB1 transmissions of an active SSB (i.e., switching a related SSB of type 2 to type 1), for requesting only SSB transmissions (i.e., switching a related SSB of type 3 to type 2), or for requesting both SSB and SIB1 transmissions (i.e., switching a related SSB of type 3 to type 1). For example, if the SSB is a type 2 SSB, the resource can be a first resource, and the WUS can include a request for SIB1 transmissions. If the SSB is a type 3 SSB and is monitored in a second cycle, the resource can be a second resource, and the WUS can include a request for SSB transmissions with a first cycle. If the SSB is a type 3 SSB and is monitored in a second cycle, the resource can be a third resource, and the WUS can include requests for both SSB transmissions with a first cycle and SIB1 transmissions.

[0136] Figure 4An example of a device 400 supporting SSB transmission according to various aspects of this disclosure is illustrated. Device 400 may be an example of a UE 104 as described herein. Device 400 may support wireless communication with one or more network entities 102, UE 104, or any combination thereof. Device 400 may include components for bidirectional communication, including components for transmitting and receiving communications (such as processor 402, memory 404, transceiver 406, and optional I / O controller 408). These components may communicate electronically or be otherwise coupled (e.g., operational ground, communication ground, functional ground, electronic ground, electrical ground) via one or more interfaces (e.g., bus).

[0137] Processor 402, memory 404, transceiver 406, or various combinations thereof, or various components thereof, may be examples of components used to perform various aspects of the present disclosure described herein. For example, processor 402, memory 404, transceiver 406, or various combinations thereof, or components thereof, may support methods for performing one or more of the operations described herein.

[0138] In some implementations, processor 402, memory 404, transceiver 406, or various combinations or components thereof may be implemented in hardware (e.g., in a communication management circuitry system). The hardware may include a processor, digital signal processor (DSP), application-specific integrated circuit (ASIC), field-programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof, configured to or otherwise supporting components for performing the functions described in this disclosure. In some implementations, processor 402 and memory 404 coupled to processor 402 may be configured to perform one or more functions described herein (e.g., by executing instructions stored in memory 404 by processor 402).

[0139] For example, according to the examples disclosed herein, processor 402 may support wireless communication at device 400. Processor 402 may be configured to operate to support: components for determining half-frames for monitoring synchronization signals and physical broadcast channel (PBCH) block (SSB) sets; and components for associating resources for wake-up signal (WUS) transmission with at least one subset of the SSB set.

[0140] Processor 402 may include intelligent hardware devices (e.g., general-purpose processors, DSPs, CPUs, microcontrollers, ASICs, FPGAs, programmable logic devices, discrete gate or transistor logic components, discrete hardware components, or any combination thereof). In some implementations, processor 402 may be configured to use a memory controller to operate a memory array. In some other implementations, the memory controller may be integrated into processor 402. Processor 402 may be configured to execute computer-readable instructions stored in memory (e.g., memory 404) to cause device 400 to perform various functions of this disclosure, such that device 400 can perform the functions described in the reference. Figures 2 to 3B Any process discussed in this disclosure.

[0141] Memory 404 may include random access memory (RAM) and read-only memory (ROM). Memory 404 may store computer-readable, computer-executable code, including instructions that, when executed by processor 402, cause device 400 to perform the various functions described herein. The code may be stored in a non-transitory computer-readable medium such as system memory or another type of memory. In some implementations, the code may not be directly executed by processor 402, but may cause a computer (e.g., when compiled and executed) to perform the functions described herein. In some implementations, memory 404 may include a basic I / O system (BIOS) that controls basic hardware or software operations, such as interaction with peripheral components or devices.

[0142] I / O controller 408 can manage the input and output signals of device 400. I / O controller 408 can also manage peripheral devices not integrated into device M02. In some implementations, I / O controller 408 can represent a physical connection or port to an external peripheral device. In some implementations, I / O controller 408 can utilize an operating system such as iOS®, Android®, MS Windows®, OS / 2®, UNIX®, Linux®, or other known operating systems. In some implementations, I / O controller 408 can be implemented as part of a processor, such as processor 406. In some implementations, a user can interact with device 400 via I / O controller 408 or via hardware components controlled by I / O controller 408.

[0143] In some implementations, device 400 may include a single antenna 410. However, in other implementations, device 400 may have more than one antenna 410 (i.e., multiple antennas), including multiple antenna panels or antenna arrays, which may be able to transmit or receive multiple wireless transmissions concurrently. Transceiver 406 may communicate bidirectionally via one or more antennas 410, wired or wireless links, as described herein. For example, transceiver 406 may represent a wireless transceiver and may communicate bidirectionally with another wireless transceiver. Transceiver 406 may also include a modem for modulating packets, providing modulated packets to one or more antennas 410 for transmission, and demodulating packets received from one or more antennas 410. Transceiver 406 may include one or more transmit chains, one or more receive chains, or combinations thereof.

[0144] The transmit chain can be configured to generate and transmit signals (e.g., control information, data, packets). The transmit chain may include at least one modulator for modulating data onto a carrier signal, preparing the signal for transmission over a wireless medium. At least one modulator may be configured to support one or more techniques, such as amplitude modulation (AM), frequency modulation (FM), or digital modulation schemes such as phase shift keying (PSK) or quadrature amplitude modulation (QAM). The transmit chain may also include at least one power amplifier configured to amplify the modulated signal to an appropriate power level suitable for transmission over a wireless medium. The transmit chain may also include one or more antennas 410 for transmitting the amplified signal into the air or wireless medium.

[0145] The receiver chain can be configured to receive signals (e.g., control information, data, packets) via a wireless medium. For example, the receiver chain may include one or more antennas 410 for receiving signals over the air or via a wireless medium. The receiver chain may include at least one amplifier (e.g., a low-noise amplifier (LNA)) configured to amplify the received signal. The receiver chain may include at least one demodulator configured to demodulate the received signal and acquire transmitted data by reversing the modulation technique applied during signal transmission. The receiver chain may include at least one decoder for decoding the demodulated signal to receive the transmitted data.

[0146] Figure 5An example of a device 500 supporting SSB transmission according to various aspects of this disclosure is illustrated. Device 500 may be an example of a network entity 102 as described herein. Device 500 may support wireless communication with one or more network entities 102, UE 104, or any combination thereof. Device 500 may include components for bidirectional communication, including components for transmitting and receiving communications (such as processor 502, memory 504, transceiver 506, and optional I / O controller 508). These components may communicate electronically or be otherwise coupled (e.g., operative ground, communication ground, functional ground, electronic ground, electrical ground) via one or more interfaces (e.g., bus).

[0147] Processor 502, memory 504, transceiver 506, or various combinations thereof, or various components thereof, may be examples of components used to perform various aspects of the present disclosure described herein. For example, processor 502, memory 504, transceiver 506, or various combinations thereof, or components thereof, may support methods for performing one or more of the operations described herein.

[0148] In some implementations, processor 502, memory 504, transceiver 506, or various combinations or components thereof may be implemented in hardware (e.g., in a communication management circuitry system). The hardware may include a processor, digital signal processor (DSP), application-specific integrated circuit (ASIC), field-programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof, configured to or otherwise supporting components for performing the functions described in this disclosure. In some implementations, processor 502 and memory 504 coupled to processor 502 may be configured to perform one or more functions described herein (e.g., by executing instructions stored in memory 504 by processor 502).

[0149] For example, according to the examples disclosed herein, processor 502 may support wireless communication at device 500. Processor 502 may be configured to operate to support: components for transmitting synchronization signals and physical broadcast channel (PBCH) block (SSB) sets to user equipment in half-frames; and components for associating resources for wake-up signal (WUS) transmission with at least one subset of the SSB set.

[0150] Processor 502 may include intelligent hardware devices (e.g., general-purpose processors, DSPs, CPUs, microcontrollers, ASICs, FPGAs, programmable logic devices, discrete gate or transistor logic components, discrete hardware components, or any combination thereof). In some implementations, processor 502 may be configured to use a memory controller to operate a memory array. In some other implementations, the memory controller may be integrated into processor 502. Processor 502 may be configured to execute computer-readable instructions stored in memory (e.g., memory 504) to cause device 500 to perform various functions of this disclosure, enabling device 500 to perform references. Figures 2 to 3B Any process discussed in this disclosure.

[0151] Memory 504 may include random access memory (RAM) and read-only memory (ROM). Memory 504 may store computer-readable, computer-executable code, including instructions that, when executed by processor 502, cause device 500 to perform the various functions described herein. The code may be stored in a non-transitory computer-readable medium such as system memory or another type of memory. In some implementations, the code may not be directly executed by processor 502, but may cause a computer (e.g., when compiled and executed) to perform the functions described herein. In some implementations, memory 504 may include a basic I / O system (BIOS) that controls basic hardware or software operations, such as interaction with peripheral components or devices.

[0152] I / O controller 508 can manage input and output signals for device 500. I / O controller 508 can also manage peripheral devices not integrated into device M02. In some implementations, I / O controller 508 can represent a physical connection or port to an external peripheral device. In some implementations, I / O controller 508 can utilize an operating system such as iOS®, Android®, MS Windows®, OS / 2®, UNIX®, LINUX®, or other known operating systems. In some implementations, I / O controller 508 can be implemented as part of a processor, such as processor 506. In some implementations, a user can interact with device 500 via I / O controller 508 or via hardware components controlled by I / O controller 508.

[0153] In some implementations, device 500 may include a single antenna 510. However, in other implementations, device 500 may have more than one antenna 510 (i.e., multiple antennas), including multiple antenna panels or antenna arrays, which may be able to transmit or receive multiple wireless transmissions concurrently. Transceiver 506 may communicate bidirectionally via one or more antennas 510, wired or wireless links, as described herein. For example, transceiver 506 may represent a wireless transceiver and may communicate bidirectionally with another wireless transceiver. Transceiver 506 may also include a modem for modulating packets, providing modulated packets to one or more antennas 510 for transmission, and demodulating packets received from one or more antennas 510. Transceiver 506 may include one or more transmit chains, one or more receive chains, or combinations thereof.

[0154] The transmit chain can be configured to generate and transmit signals (e.g., control information, data, packets). The transmit chain may include at least one modulator for modulating data onto a carrier signal, preparing the signal for transmission over a wireless medium. At least one modulator may be configured to support one or more techniques, such as amplitude modulation (AM), frequency modulation (FM), or digital modulation schemes such as phase shift keying (PSK) or quadrature amplitude modulation (QAM). The transmit chain may also include at least one power amplifier configured to amplify the modulated signal to an appropriate power level suitable for transmission over a wireless medium. The transmit chain may also include one or more antennas 510 for transmitting the amplified signal into the air or wireless medium.

[0155] The receiver chain can be configured to receive signals (e.g., control information, data, packets) via a wireless medium. For example, the receiver chain may include one or more antennas 510 for receiving signals over the air or via a wireless medium. The receiver chain may include at least one amplifier (e.g., a low-noise amplifier (LNA)) configured to amplify the received signal. The receiver chain may include at least one demodulator configured to demodulate the received signal and acquire transmitted data by reversing the modulation technique applied during signal transmission. The receiver chain may include at least one decoder for decoding the demodulated signal to receive the transmitted data.

[0156] Figure 6An example of a processor 600 supporting SSB transmission according to various aspects of this disclosure is illustrated. Processor 600 may be an example of a processor configured to perform various operations according to the examples described herein. Processor 600 may be implemented in a device or component thereof as described herein. For example, the device may be an example of UE 104 described herein. Processor 600 may include a controller 602 configured to perform various operations according to the examples described herein. Processor 600 may optionally include at least one memory 604, such as an L1 / L2 / L3 cache. Additionally or alternatively, processor 600 may optionally include one or more arithmetic logic units (ALUs) 600. One or more of these components may be electronically communicated or otherwise coupled (e.g., operative ground, communicative ground, functional ground, electronic ground, electrical ground) via one or more interfaces (e.g., buses).

[0157] Processor 600 may be a processor chipset and includes a protocol stack (e.g., a software stack) executed by the processor chipset to perform various operations (e.g., receive, acquire, retrieve, send, output, forward, store, determine, identify, access, write, read) according to the examples described herein. The processor chipset may include one or more cores, one or more caches (e.g., memory local to the processor chipset or included in the processor chipset (e.g., processor 600)) or other memory (e.g., random access memory (RAM), read-only memory (ROM), dynamic RAM (DRAM), synchronous dynamic RAM (SDRAM), static RAM (SRAM), ferroelectric RAM (FeRAM), magnetic RAM (MRAM), resistive RAM (RRAM), flash memory, phase-change memory (PCM), etc.).

[0158] Controller 602 can be configured to manage and coordinate various operations of processor 600 (e.g., signaling, receiving, acquiring, retrieving, transmitting, outputting, forwarding, storing, determining, identifying, accessing, writing, and reading) to enable processor 600 to support various operations of the UE according to the examples described herein. For example, controller 602 can operate as a control unit of processor 600, generating control signals that manage the operation of various components of processor 600. These control signals include enabling or disabling functional units, selecting data paths, initiating memory accesses, and coordinating operation timing.

[0159] Controller 602 may be configured to fetch (e.g., fetch, retrieve, receive) instructions from memory 604 and determine subsequent instructions(s) to be executed, enabling processor 600 to support various operations according to the examples described herein. Controller 602 may be configured to track the memory addresses of instructions associated with memory 604. Controller 602 may be configured to decode instructions to determine the operations to be performed and the operands involved. For example, controller 602 may be configured to interpret instructions and determine control signals to be output to other components of processor 600, enabling processor 600 to support various operations according to the examples described herein. Additionally or alternatively, controller 602 may be configured to manage data flow within processor 600. Controller 602 may be configured to control data transfers between registers, arithmetic logic unit (ALU), and other functional units of processor 600.

[0160] Memory 604 may include one or more caches (e.g., memory or other memory, such as RAM, ROM, DRAM, SDRAM, SRAM, MRAM, flash memory, etc., either locally or included in processor 600). In some implementations, memory 604 may reside within or on the processor chipset (e.g., locally on processor 600). In some other implementations, memory 604 may reside outside the processor chipset (e.g., remotely from processor 600).

[0161] Memory 604 may store computer-readable, computer-executable code, including instructions that, when executed by processor 600, cause processor 600 to perform the various functions described herein. The code may be stored in a non-transitory computer-readable medium, such as system memory or another type of memory. Controller 602 and / or processor 600 may be configured to execute computer-readable instructions stored in memory 604 to cause processor 600 to perform various functions. For example, processor 600 and / or controller 602 may be coupled to or coupled to memory 604, and processor 600, controller 602, and memory 604 may be configured to perform the various functions described herein. In some examples, processor 600 may include multiple processors, and memory 604 may include multiple memories. One or more of the multiple processors may be coupled to one or more of the multiple memories, which may be configured individually or collectively to perform the various functions described herein.

[0162] One or more ALU 606s can be configured to support a variety of operations as described in the examples herein. In some implementations, one or more ALU 606s may reside within or on a processor chipset (e.g., processor 600). In some other implementations, one or more ALU 606s may reside outside the processor chipset (e.g., processor 600). One or more ALU 606s can perform one or more calculations on data, such as addition, subtraction, multiplication, and division. For example, one or more ALU 606s can receive input operands and opcodes that determine the operation to be performed. One or more ALU 606s are configured with various logic and arithmetic circuitry, including adders, subtractors, shifters, and logic gates, to process and manipulate data according to the operations. Alternatively or concurrently, one or more ALU 606s may support logical operations such as AND, OR, XOR, NOR, and NAND, enabling one or more ALU 606s to handle conditional operations, comparisons, and bitwise operations.

[0163] Based on the examples disclosed herein, processor 600 may support wireless communication. Processor 600 may be configured or operable to support: components for determining half-frames for monitoring synchronization signals and Physical Broadcast Channel (PBCH) block (SSB) sets; and components for associating resources for Wake-up Signal (WUS) transmission with at least one subset of the SSB set.

[0164] Figure 7 An example of a processor 700 supporting SSB transmission according to various aspects of this disclosure is illustrated. Processor 700 may be an example of a processor configured to perform various operations according to the examples described herein. Processor 700 may be implemented in a device or component thereof as described herein. For example, the device may be an example of network entity 102 as described herein. Processor 700 may include a controller 702 configured to perform various operations according to the examples described herein. Processor 700 may optionally include at least one memory 704, such as an L1 / L2 / L3 cache. Additionally or alternatively, processor 700 may optionally include one or more arithmetic logic units (ALUs) 700. One or more of these components may be electronically communicated or otherwise coupled (e.g., operative ground, communicative ground, functional ground, electronic ground, electrical ground) via one or more interfaces (e.g., buses).

[0165] Processor 700 may be a processor chipset and includes a protocol stack (e.g., a software stack) executed by the processor chipset to perform various operations (e.g., receive, acquire, retrieve, send, output, forward, store, determine, identify, access, write, read) according to the examples described herein. The processor chipset may include one or more cores, one or more caches (e.g., memory local to the processor chipset or included in the processor chipset (e.g., processor 700)) or other memory (e.g., random access memory (RAM), read-only memory (ROM), dynamic RAM (DRAM), synchronous dynamic RAM (SDRAM), static RAM (SRAM), ferroelectric RAM (FeRAM), magnetic RAM (MRAM), resistive RAM (RRAM), flash memory, phase-change memory (PCM), etc.).

[0166] Controller 702 can be configured to manage and coordinate various operations of processor 700 (e.g., signaling, receiving, acquiring, retrieving, sending, outputting, forwarding, storing, determining, identifying, accessing, writing, and reading) to enable processor 700 to support various operations according to the examples described herein. For example, controller 702 can operate as a control unit of processor 700, generating control signals that manage the operation of various components of processor 700. These control signals include enabling or disabling functional units, selecting data paths, initiating memory accesses, and coordinating operation timing.

[0167] Controller 702 can be configured to fetch (e.g., fetch, retrieve, receive) instructions from memory 704 and determine subsequent instructions(s) to be executed, enabling processor 700 to support various operations according to the examples described herein. Controller 702 can be configured to track the memory addresses of instructions associated with memory 704. Controller 702 can be configured to decode instructions to determine the operations to be performed and the operands involved. For example, controller 702 can be configured to interpret instructions and determine control signals to be output to other components of processor 700, enabling processor 700 to support various operations according to the examples described herein. Additionally or alternatively, controller 702 can be configured to manage data flow within processor 700. Controller 702 can be configured to control data transfers between registers, arithmetic logic unit (ALU), and other functional units of processor 700.

[0168] Memory 704 may include one or more caches (e.g., memory or other memory, such as RAM, ROM, DRAM, SDRAM, SRAM, MRAM, flash memory, etc., local to or included in processor 700). In some implementations, memory 704 may reside within or on the processor chipset (e.g., local to processor 700). In some other implementations, memory 704 may reside outside the processor chipset (e.g., remote from processor 700).

[0169] Memory 704 may store computer-readable, computer-executable code, including instructions that, when executed by processor 700, cause processor 700 to perform the various functions described herein. The code may be stored in a non-transitory computer-readable medium, such as system memory or another type of memory. Controller 702 and / or processor 700 may be configured to execute computer-readable instructions stored in memory 704 to cause processor 700 to perform various functions. For example, processor 700 and / or controller 702 may be coupled to or coupled to memory 704, and processor 700, controller 702, and memory 704 may be configured to perform the various functions described herein. In some examples, processor 700 may include multiple processors, and memory 704 may include multiple memories. One or more of the multiple processors may be coupled to one or more of the multiple memories, which may be configured individually or collectively to perform the various functions described herein.

[0170] One or more ALU 700s can be configured to support various operations as described in the examples herein. In some implementations, one or more ALU 700s may reside within or on a processor chipset (e.g., processor 700). In some other implementations, one or more ALU 700s may reside outside the processor chipset (e.g., processor 700). One or more ALU 700s can perform one or more calculations on data, such as addition, subtraction, multiplication, and division. For example, one or more ALU 700s can receive input operands and opcodes that determine the operation to be performed. One or more ALU 700s are configured with various logic and arithmetic circuitry, including adders, subtractors, shifters, and logic gates, to process and manipulate data according to the operation. Alternatively or concurrently, one or more ALU 700s may support logical operations such as AND, OR, XOR, NOR, and NAND, enabling one or more ALU 700s to handle conditional operations, comparisons, and bitwise operations.

[0171] Based on the examples disclosed herein, processor 700 can support wireless communication. Processor 700 can be configured or operable to support: components for transmitting synchronization signals and physical broadcast channel (PBCH) block (SSB) sets to user equipment in half-frames; and components for associating resources for wake-up signal (WUS) transmission with at least one subset of the SSB set.

[0172] Figure 8 A flowchart illustrating a method 800 supporting SSB transmission according to various aspects of this disclosure is shown. Operation of method 800 can be implemented by the device or components thereof described herein. For example, operation of method 800 can be performed by UE 104 described herein. In some implementations, the device can execute a set of instructions to control the functional elements of the device to perform the described functions. Alternatively or concurrently, the device can use dedicated hardware to perform aspects of the described functions.

[0173] At 805, the method may include: determining a half-frame for monitoring the SSB set. The operation at 805 can be performed according to the examples described herein. In some implementations, aspects of the operation at 805 can be derived from references. Figure 1A The aforementioned device is used to perform this action.

[0174] At 810, the method may include associating resources used for WUS transport with at least one subset of the SSB set. The operation at 805 can be performed according to the examples described herein. In some implementations, aspects of the operation at 805 may be derived from references. Figure 1A The aforementioned device is used to perform this action.

[0175] Figure 9 A flowchart illustrating a method 900 supporting SSB transmission according to various aspects of this disclosure is shown. Operation of method 900 may be implemented by the device or components thereof described herein. For example, operation of method 900 may be performed by UE 104 described herein. In some implementations, the device may execute a set of instructions to control functional elements of the device to perform the described functions. Alternatively or alternatively, the device may use dedicated hardware to perform aspects of the described functions. In some embodiments, method 900 may be performed before, simultaneously with, or after method 800. Alternatively, method 900 may be performed independently of method 800.

[0176] At position 905, the method may include: monitoring the SSB set within a half-frame. The operation at position 905 can be performed according to the examples described herein. In some implementations, aspects of the operation at position 905 can be derived from references. Figure 1A The aforementioned device is used to perform this action.

[0177] At 910, the method may include: determining the type of the SSB from the SSB set. The operation at 910 can be performed according to the examples described herein. In some implementations, aspects of the operation at 910 may be derived from references. Figure 1A The aforementioned device is used to perform this action.

[0178] Figure 1000 illustrates a flowchart of a method 1000 supporting SSB transmission according to various aspects of this disclosure. Operation of method 1000 can be implemented by the device or components thereof described herein. For example, operation of method 1000 can be performed by the network entity 102 described herein. In some implementations, the device can execute a set of instructions to control the functional elements of the device to perform the described functions. Alternatively or additionally, the device can use dedicated hardware to perform aspects of the described functions.

[0179] At point 1005, the method may include: sending an SSB set to the UE in a half-frame. The operation at point 1005 can be performed according to the examples described herein. In some implementations, aspects of the operation at point 1005 can be derived from references. Figure 1A The aforementioned device is used to perform this action.

[0180] At point 1010, the method may include associating resources used for WUS transport with at least one subset of the SSB set. The operation of 1010 can be performed according to the examples described herein. In some implementations, aspects of the operation of 1010 may be derived from references. Figure 1A The aforementioned device is used to perform this action.

[0181] Figure 11 A flowchart illustrating a method 1100 supporting SSB transmission according to various aspects of this disclosure is shown. Operation of method 1100 may be implemented by a device or component thereof described herein. For example, operation of method 1100 may be performed by a network entity 102 described herein. In some implementations, the device may execute a set of instructions to control functional elements of the device to perform the described functions. Alternatively or concurrently, the device may use dedicated hardware to perform aspects of the described functions. In some embodiments, method 1100 may be a specific example of step 1005 in method 1000.

[0182] At 1105, the method may include: transmitting a first subset of SSBs to the UE in a first period, wherein the first subset of SSBs includes at least one SSB of a first type associated with a corresponding SIB1. The operation of 1105 can be performed according to the examples described herein. In some implementations, aspects of the operation of 1105 may be derived from references... Figure 1A The aforementioned device is used to perform this action.

[0183] At 1110, the method may include: transmitting a second subset of SSBs to the UE in a first period, wherein the second subset of SSBs includes at least one SSB of a second type not associated with SIB1. The operation of 1110 can be performed according to the examples described herein. In some implementations, aspects of the operation of 1110 may be derived from references... Figure 1A The aforementioned device is used to perform this action.

[0184] At 1115, the method may include: transmitting a third subset of SSBs to the UE in a second cycle, wherein the third subset of SSBs includes at least one SSB of a third type not associated with SIB1. The operation of 1115 can be performed according to the examples described herein. In some implementations, aspects of the operation of 1115 may be derived from references... Figure 1A The aforementioned device is used to perform this action.

[0185] It should be noted that the methods described in this paper describe possible implementations, and the operations and steps can be rearranged or otherwise modified, and other implementations are also possible. Furthermore, aspects from two or more methods can be combined.

[0186] The various illustrative blocks and components disclosed herein can be implemented or executed using a general-purpose processor, DSP, ASIC, CPU, FPGA or other programmable logic device, discrete gate or transistor logic, discrete hardware component or any combination thereof designed to perform the functions described herein. The general-purpose processor may be a microprocessor, but alternatively, the processor may be any processor, controller, microcontroller or state machine. The processor may also be implemented as a combination of computing devices (e.g., a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors combined with a DSP core, or any other such configuration).

[0187] The functions described herein can be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software executed by a processor, the functions can be stored on or transmitted via a computer-readable medium as one or more instructions or code. Other examples and implementations are within the scope of this disclosure and the appended claims. For example, due to the nature of software, the functions described herein can be implemented using software executed by a processor, hardware, firmware, hardwired, or any combination thereof. Features implementing the functions can also be physically located in various locations, including being distributed such that portions of the functions are implemented at different physical locations.

[0188] Computer-readable media include both non-transitory computer storage media and communication media, with communication media including any medium that facilitates the transfer of a computer program from one place to another. Non-transitory storage media can be any available medium that can be accessed by a general-purpose or special-purpose computer. By way of example, non-transitory computer-readable media can include RAM, ROM, electrically erasable programmable ROM (EEPROM), flash memory, optical disc (CD) ROM or other optical disc storage, magnetic disk storage or other magnetic storage devices, or any other non-transitory medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a general-purpose or special-purpose computer, or a general-purpose or special-purpose processor.

[0189] As used herein, including in the claims, the article “a” preceding an element is unrestricted and should be understood to refer to “at least one” or “one or more” of those elements. The terms “a,” “at least one,” “one or more,” and “at least one of one or more” are interchangeable. As used herein, including in the claims, the use of “or” in a list of items (e.g., a list of items beginning with phrases such as “at least one of…” or “one or more of…” or “one or two of…”) indicates an inclusive list, such that, for example, a list of at least one of A, B, or C means A or B or C or AB or AC or BC or ABC (i.e., A and B and C). Furthermore, as used herein, the phrase “based on” should not be construed as a reference to a closed set of conditions. For example, an example step described as “based on condition A” without departing from the scope of this disclosure could be based on both condition A and condition B. In other words, as used herein, the phrase “based on” should be interpreted in the same manner as the phrase “at least partially based on.” Furthermore, as used herein, including in the claims, “set” can include one or more elements. The description provided herein is intended to enable those skilled in the art to make or use this disclosure. Various modifications to this disclosure will be readily apparent to those skilled in the art, and the general principles defined herein can be applied to other variations without departing from the scope of this disclosure. Therefore, this disclosure is not limited to the examples and designs described herein, but should be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A user equipment, comprising: processor; as well as A transceiver, the transceiver being coupled to the processor, The processor is configured as follows: Determine the half-frames used for monitoring synchronization signals and the Physical Broadcast Channel (PBCH) block SSB set; and The resources used for the WUS wake-up signal transmission are associated with at least one subset of the SSB set.

2. The user equipment of claim 1, wherein the SSB set includes one of the following: The maximum number of SSBs supported; or SSB configured by the base station.

3. The user equipment of claim 1, wherein the SSB set comprises at least one of the following: At least one SSB of the first type, wherein the SSB of the first type is associated with a corresponding System Information Block Type 1 SIB1; At least one SSB of the second type, wherein the SSB of the second type is not associated with SIB1; or At least one SSB of the third type, wherein the SSB of the third type is not associated with SIB1.

4. The user equipment of claim 3, wherein the processor is further configured to perform at least one of the following: Monitor at least one SSB of the first type in the first cycle; Monitor at least one SSB of the second type in the first cycle; or The at least one SSB of the third type is monitored in the second cycle.

5. The user equipment according to claim 3, wherein the processor is further configured to: The SSB set is monitored from the base station in half-frames via the transceiver; and Determine the type of SSB from the SSB set.

6. The user equipment of claim 5, wherein the type of the SSB is determined based on a configuration from the base station.

7. The user equipment according to claim 6, wherein the processor is further configured to: Based on the configuration, determine at least one of the following in the SSB set: The first subset of SSBs includes at least one SSB of the first type; A second subset of SSBs includes at least one SSB of the second type; The third subset of SSBs includes at least one SSB of the third type.

8. The user equipment of claim 5, wherein the type of the SSB is determined based on one of the following: The structure of the SSB; or Information carried by the SSB.

9. The user equipment of claim 8, wherein the processor is configured to determine the type of the SSB based on the structure of the SSB by one of the following: The type of the SSB is determined to be the second type if the SSB is one of the following: a non-cell-defined SSB or an SSB used only for channel quality measurement; or The type of the SSB is determined to be the third type if the SSB is one of the following: a partial SSB, a non-cell-defined SSB, or an SSB used only for channel quality measurement.

10. The user equipment of claim 8, wherein the information carried by the SSB is indicated in the main information block (MIB) of the SSB.

11. The user equipment of claim 5, wherein the processor is further configured to: Channel quality is determined based on the SSB received from the base station; and If the channel quality is higher than the quality threshold, WUS is transmitted to the base station via the transceiver using the resources in the resources used for WUS transmission.

12. The user equipment of claim 11, wherein the SSB is the second type of SSB, and the WUS includes a request for SIB1 transmission.

13. The user equipment of claim 11, wherein the SSB is the third type of SSB and is monitored in a second cycle, and the WUS includes one of the following: For requests with an SSB transmission in the first cycle; or For requests involving SSB and SIB1 transmissions with a first cycle.

14. The user equipment according to claim 12 or 13, wherein the processor is further configured to: The transceiver receives the transmission from the base station based on the request within a time period.

15. The user equipment of claim 1, wherein the half-frame is determined based on a period configured by the base station or based on a predefined period, and the processor is further configured to: Based on the determined half-frame and the time offset configured or predefined by the base station, the resources used for WUS transmission are determined.

16. The user equipment of claim 1, wherein the processor is configured to associate the resources used for WUS transmission with at least one subset of the SSB set by: The resources used for WUS transmission are associated with the maximum number of supported SSBs.

17. The user equipment of claim 7, wherein the at least one subset of the SSB set comprises at least one of the following: The second subset of the SSB, or The third subset of the SSB.

18. A base station, comprising: processor; as well as A transceiver, the transceiver being coupled to the processor, The processor is configured as follows: The transceiver transmits synchronization signals and Physical Broadcast Channel (PBCH) block SSB sets to the user equipment within a half-frame; and The resources used for the WUS wake-up signal transmission are associated with at least one subset of the SSB set.

19. A method performed by a user equipment, comprising: Determine the half-frames used for monitoring synchronization signals and the Physical Broadcast Channel (PBCH) block SSB set; as well as The resources used for the WUS wake-up signal transmission are associated with at least one subset of the SSB set.

20. A processor for wireless communication, comprising: At least one memory; as well as A controller, coupled to the at least one memory, and configured such that the controller: Determine the half-frames used for monitoring synchronization signals and the Physical Broadcast Channel (PBCH) block SSB set; as well as The resources used for the WUS wake-up signal transmission are associated with at least one subset of the SSB set.

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