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WO2024169254A1 - Détermination d'un état de cellule - Google Patents

Détermination d'un état de cellule Download PDF

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Publication number
WO2024169254A1
WO2024169254A1 PCT/CN2023/129441 CN2023129441W WO2024169254A1 WO 2024169254 A1 WO2024169254 A1 WO 2024169254A1 CN 2023129441 W CN2023129441 W CN 2023129441W WO 2024169254 A1 WO2024169254 A1 WO 2024169254A1
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WO
WIPO (PCT)
Prior art keywords
cell
system information
essential system
processor
barred
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/CN2023/129441
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English (en)
Inventor
Ran YUE
Haiming Wang
Lianhai WU
Min Xu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Lenovo Beijing Ltd
Original Assignee
Lenovo Beijing Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Lenovo Beijing Ltd filed Critical Lenovo Beijing Ltd
Priority to PCT/CN2023/129441 priority Critical patent/WO2024169254A1/fr
Publication of WO2024169254A1 publication Critical patent/WO2024169254A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/12—Access restriction or access information delivery, e.g. discovery data delivery using downlink control channel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/14—Access restriction or access information delivery, e.g. discovery data delivery using user query or user detection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/16—Discovering, processing access restriction or access information

Definitions

  • the present disclosure relates to wireless communications, and more specifically to user equipment (UE) , base station and methods for supporting determination of a cell status.
  • UE user equipment
  • a wireless communications system may include one or multiple network communication devices, such as base stations, which may be otherwise known as an eNodeB (eNB) , a next-generation NodeB (gNB) , or other suitable terminology.
  • Each network communication devices such as a base station may support wireless communications for one or multiple user communication devices, which may be otherwise known as UE, or other suitable terminology.
  • the wireless communications system may support wireless communications with one or multiple user communication devices by utilizing resources of the wireless communication system (e.g., time resources (e.g., symbols, slots, subframes, frames, or the like) or frequency resources (e.g., subcarriers, carriers) .
  • the wireless communications system may support wireless communications across various radio access technologies including third generation (3G) radio access technology, fourth generation (4G) radio access technology, fifth generation (5G) radio access technology, among other suitable radio access technologies beyond 5G (e.g., sixth generation (6G) ) .
  • 3G third generation
  • 4G fourth generation
  • 5G fifth generation
  • 6G sixth generation
  • essential system information is not broadcast periodically to save the network energy while it can be transmitted after a UE transmits a request for the essential system information. It could be possible that the UE cannot obtain the essential system information after transmission of the request for the essential system information or the UE does not transmit the request for the essential system information. There is a need to study how the UE determines whether the essential system information is able to be acquired or not.
  • the present disclosure relates to UE, base station and methods that support determination of a cell status.
  • UE can determine a cell status of a cell dependent on or independent from a result of the acquisition of the essential system information.
  • Some implementations of a UE described herein may include a processor and a transceiver coupled to the processor, wherein the processor is configured to: determine whether essential system information of a first cell is able to be acquired; and determine a cell status of the first cell based on a result of the acquisition of the essential system information.
  • the processor is configured to determine whether the essential system information of the first cell is able to be acquired by: based on determining that the first cell is a first type of cell, determining that the essential system information is able to be acquired; or based on determining that the first cell is the first type of cell, determining that the essential system information is unable to be acquired.
  • the first type of cell comprises one of the following: an NES cell, or a non-anchor cell.
  • each of the NES cell and the non-anchor cell supports on-demand transmission of the essential system information.
  • the processor is configured to determine whether the essential system information of the first cell is able to be acquired by: transmitting a request for the essential system information via the transceiver to a base station; based on determining that the essential system information is received after transmitting the request for the essential system information, determining that the essential system information is able to be acquired; and based on determining that the essential system information is not received, determining that the essential system information is unable to be acquired.
  • the processor is configured to determine that the essential system information of the first cell is able to be acquired by: based on determining that the essential system information is received within a time duration after transmitting the request for the essential system information, determining that the essential system information is able to be acquired.
  • the processor is configured to determine that the essential system information of the first cell is unable to be acquired by: based on determining that the essential system information is not received within the time duration, determining that the essential system information is unable to be acquired.
  • the processor is further configured to: receive a first configuration for the time duration via the transceiver from the base station; or receive, via the transceiver to the base station, a first configuration for the time duration and a second configuration for an uplink signal associated with the request.
  • the processor is configured to receive the first configuration for the time duration via the first cell or a second cell.
  • the second cell comprises one of the following: an anchor cell associated with the first cell, or a neighbor cell associated with the first cell.
  • the processor is configured to receive the first configuration for the time duration when the UE enters an idle state or an inactive state.
  • the processor is configured to determine whether the essential system information of the first cell is able to be acquired by: determining whether the essential system information of the first cell is able to be acquired based on whether the UE transmits a request for the essential system information via the transceiver to a base station.
  • the processor is configured to determine whether the essential system information of the first cell is able to be acquired by: based on transmission of the request for the essential system information, determining that the essential system information is able to be acquired.
  • the processor is configured to determine whether the essential system information of the first cell is able to be acquired by: based on determining that the UE does not transmit the request for the essential system information, determining that the essential system information is able to be acquired; or based on determining that the UE does not transmit the request for the essential system information, determining that the essential system information is unable to be acquired.
  • the processor is further configured to: receive a first indication via the transceiver from the base station, the first indication indicating that the essential system information is not to be transmitted; and the processor is configured to determine whether the essential system information of the first cell is able to be acquired by: determining that the essential system information is unable to be acquired based on the first indication.
  • the processor is further configured to: receive, via the transceiver from the base station, the essential system information; and receive, via the transceiver from the base station, a third configuration for a second time duration during which the received essential system information is valid.
  • the processor is further configured to: based on determining that the second time duration expires, transmitting a request for the essential system information via the transceiver to the base station.
  • the processor is further configured to: receive a second indication via the transceiver from the base station, the second indication indicating that the essential system information is to be transmitted; and receive essential system information via the transceiver from the base station based on the second indication.
  • the processor is further configured to: transmit a third indication via the transceiver to the base station via a third cell, the third indication indicating that the essential system information is unable to be acquired.
  • the third cell comprises one of the following: an anchor cell associated with the first cell, a camping cell for the UE, a connected cell for the UE, or a serving cell for the UE.
  • the processor is configured to determine the cell status of the first cell by: based on determining that the first cell does not transmit the essential system information, considering the cell status of the first cell as barred or treating the first cell as if the cell status is barred; or based on determining that the first cell performs on-demand transmission of the essential system information, considering the cell status of the first cell as barred or treating the first cell as if the cell status is barred.
  • the essential system information comprises at least one of the following: Synchronization Signal Block (SSB) , Master Information Block (MIB) , or System Information Block Type 1 (SIB1) .
  • SSB Synchronization Signal Block
  • MIB Master Information Block
  • SIB1 System Information Block Type 1
  • the processor is configured to determine the cell status of the first cell by: based on determining that the SSB is acquired and the SIB1 is not acquired, considering the cell status of the first cell as barred or treating the first cell as if the cell status is barred.
  • the processor is configured to determine the cell status of the first cell by: based on determining that the essential system information is not acquired, considering the cell status of the first cell as barred or treating the first cell as if the cell status is barred.
  • the processor is configured to determine the cell status of the first cell by: based on determining that a request for the essential system information is not to be transmitted, considering the cell status of the first cell as barred or treating the first cell as if the cell status is barred.
  • the processor is configured to determine the cell status of the first cell by: based on determining that a request procedure for the essential system information ends or fails, considering the cell status of the first cell as barred or treating the first cell as if the cell status is barred; or based on determining that the essential system information is unable to be acquired, considering the cell status of the first cell as barred or treating the first cell as if the cell status is barred.
  • the processor is configured to determine the cell status of the first cell by: based on determining that the first cell does not transmit the essential system information, considering the cell status of the first cell is not barred until the UE determines that the essential system information is unable to be acquired; or based on determining that the first cell does not transmit the essential system information, considering the cell status of the first cell is not barred until the UE acquires the essential system information which indicates the first cell is barred.
  • the processor is configured to determine the cell status of the first cell by: based on considering the cell status of the first cell as barred or treating the first cell as if the cell status is barred, exclude the first cell as a candidate for cell selection or cell reselection for a third time duration, the third time duration being associated with NES.
  • the processor is further configured to: based on determining that a configuration for the first cell is received, consider cell access barring alleviation for the first cell.
  • the processor is further configured to: based on determining that a configuration for the first cell is received and the essential system information is received, consider cell access barring alleviation for the first cell.
  • the configuration for the first cell comprise a second configuration for an uplink signal, the uplink signal being associated with a request for the essential system information.
  • the processor is further configured to: based on transmission of a request for the essential system information, consider cell access barring alleviation for the first cell.
  • the processor is further configured to: based on determining that the essential system information is received, consider cell access barring alleviation for the first cell.
  • the processor is further configured to: based on considering the cell status of the first cell as barred or treating the first cell as if the cell status is barred and determining that the essential system information can be requested, consider cell access barring alleviation for the first cell.
  • a base station described herein may include a processor and a transceiver coupled to the processor, wherein the processor is configured to: receive, via the transceiver from a UE, a request for essential system information; and transmit the essential system information via the transceiver to the UE within a time duration after receiving the request.
  • the processor is further configured to: transmit a first configuration for the time duration via the transceiver to the UE; or transmit, via the transceiver to the UE, a first configuration for the time duration and a second configuration for an uplink signal associated with the request.
  • the processor is further configured to: transmit, via the transceiver to the UE, a third configuration for a second time duration during which the received essential system information is valid.
  • the processor is further configured to: transmit a second indication via the transceiver to at least one second UE, the second indication indicating that the essential system information is to be transmitted, the at least one second UE comprising the UE.
  • Some implementations of a method described herein may include: determining whether essential system information of a first cell is able to be acquired; and determining a cell status of the first cell based on a result of the acquisition of the essential system information.
  • Some implementations of a method described herein may include: receiving, from a UE, a request for essential system information; and transmitting the essential system information via the transceiver to the UE within a time duration after receiving the request.
  • Some implementations of a processor described herein may include at least one memory and a controller coupled with the at least one memory and configured to cause the controller to: determine whether essential system information of a first cell is able to be acquired; and determine a cell status of the first cell based on a result of the acquisition of the essential system information.
  • Fig. 1 illustrates an example of a wireless communications system that supports determination of a cell status in accordance with aspects of the present disclosure
  • Fig. 2A illustrates an example single-cell scenario for on-demand Synchronization Signal Block (SSB) /System Information Block Type 1 (SIB1) in accordance with aspects of the present disclosure
  • SSB Synchronization Signal Block
  • SIB1 System Information Block Type 1
  • Fig. 2B illustrates an example multi-cell scenario for on-demand SSB/SIB1 in accordance with aspects of the present disclosure
  • Fig. 3 illustrates a flowchart of a method that supports determination of a cell status in accordance with aspects of the present disclosure
  • Fig. 4 illustrates an example of a device that supports determination of a cell status in accordance with some aspects of the present disclosure
  • Fig. 5 illustrates an example of a processor that supports determination of a cell status in accordance with aspects of the present disclosure
  • Fig. 6 illustrates a flowchart of a method that supports determination of a cell status in accordance with aspects of the present disclosure.
  • references in the present disclosure to “one embodiment, ” “an example embodiment, ” “an embodiment, ” “some embodiments, ” and the like indicate that the embodiment (s) described may include a particular feature, structure, or characteristic, but it is not necessary that every embodiment includes the particular feature, structure, or characteristic. Moreover, such phrases do not necessarily refer to the same embodiment (s) . Further, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is submitted that it is within the knowledge of one skilled in the art to affect such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described.
  • first and second or the like may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another element. For example, a first element could also be termed as a second element, and similarly, a second element could also be termed as a first element, without departing from the scope of embodiments. As used herein, the term “and/or” includes any and all combinations of one or more of the listed terms.
  • an anchor cell refers to a cell where a UE is camping on
  • a non-anchor cell refers to a cell other than an anchor cell
  • NES may involve many kinds of NES technologies such as on-demand system information request/transmission, cell discontinuous transmission (DTX) /discontinuous reception (DRX) or the like. It is to be understood that the term “supporting NES” herein may refer to supporting at least one of the NES technologies.
  • a cell supporting NES may be used interchangeably with “a cell supporting a NES technology of on-demand system information request/transmission” .
  • the term “a NES-capable UE” or the term “a UE with NES capability” may be used interchangeably with “a UE supporting NES” .
  • the term “a UE supporting NES” may be used interchangeably with “a UE supporting a NES technology of on-demand system information request/transmission” .
  • on-demand transmission of the essential system information may be used interchangeably with “on-demand essential system information” .
  • reference to “on-demand transmission of the essential system information” or “on-demand essential system information” means that the essential system information is not broadcast periodically from a base station while the essential system information can be transmitted after a UE transmits an UL signal (e.g. wake-up signal or any other suitable signals existing or to be developed in future) as a request for the essential system information to the base station.
  • an UL signal e.g. wake-up signal or any other suitable signals existing or to be developed in future
  • the UE cannot obtain the essential system information after transmission of the request for the essential system information or the UE does not transmit the request for the essential system information. There is a need to study how the UE determines whether the essential system information is able to be acquired or not.
  • MIB Master Information Block
  • SIB1 SIB1
  • the present disclosure provides a solution that supports determination of a cell status.
  • a UE determines whether essential system information of a first cell is able to be acquired.
  • the UE determines a cell status of the first cell.
  • UE can determine a cell status of a cell dependent on or independent from a result of the acquisition of the essential system information.
  • Fig. 1 illustrates an example of a wireless communications system 100 that supports determination of a cell status in accordance with aspects of the present disclosure.
  • the wireless communications system 100 may include one at least one of network entities 102 (also referred to as network equipment (NE) ) , one or more terminal devices or UEs 104, a core network 106, and a packet data network 108.
  • the wireless communications system 100 may support various radio access technologies.
  • the wireless communications system 100 may be a 4G network, such as an LTE network or an LTE-advanced (LTE-A) network.
  • LTE-A LTE-advanced
  • the wireless communications system 100 may be a 5G network, such as an NR network.
  • the wireless communications system 100 may be a combination of a 4G network and a 5G network, or other suitable radio access technology including institute of electrical and electronics engineers (IEEE) 802.11 (Wi-Fi) , IEEE 802.16 (WiMAX) , IEEE 802.20.
  • IEEE institute of electrical and electronics engineers
  • Wi-Fi Wi-Fi
  • WiMAX IEEE 802.16
  • IEEE 802.20 The wireless communications system 100 may support radio access technologies beyond 5G. Additionally, the wireless communications system 100 may support technologies, such as time division multiple access (TDMA) , frequency division multiple access (FDMA) , or code division multiple access (CDMA) , etc.
  • TDMA time division multiple access
  • FDMA frequency division multiple access
  • CDMA code division multiple access
  • the network entities 102 may be collectively referred to as network entities 102 or individually referred to as a network entity 102.
  • the network entities 102 may be dispersed throughout a geographic region to form the wireless communications system 100.
  • One or more of the network entities 102 described herein may be or include or may be referred to as a network node, a base station (BS) , a network element, a radio access network (RAN) node, a base transceiver station, an access point, a NodeB, an eNodeB (eNB) , a next-generation NodeB (gNB) , or other suitable terminology.
  • a network entity 102 and a UE 104 may communicate via a communication link 110, which may be a wireless or wired connection.
  • a network entity 102 and a UE 104 may perform wireless communication (e.g., receive signaling, transmit signaling) over a Uu interface.
  • a network entity 102 may provide a geographic coverage area 112 for which the network entity 102 may support services (e.g., voice, video, packet data, messaging, broadcast, etc. ) for one or more UEs 104 within the geographic coverage area 112.
  • a network entity 102 and a UE 104 may support wireless communication of signals related to services (e.g., voice, video, packet data, messaging, broadcast, etc. ) according to one or multiple radio access technologies.
  • a network entity 102 may be moveable, for example, a satellite associated with a non-terrestrial network.
  • different geographic coverage areas 112 associated with the same or different radio access technologies may overlap, but the different geographic coverage areas 112 may be associated with different network entities 102.
  • Information and signals described herein may be represented using any of a variety of different technologies and techniques.
  • data, instructions, commands, information, signals, bits, symbols, and chips that may be referenced throughout the description may be represented by voltages, currents, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.
  • the one or more UEs 104 may be dispersed throughout a geographic region of the wireless communications system 100.
  • a UE 104 may include or may be referred to as a mobile device, a wireless device, a remote device, a remote unit, a handheld device, or a subscriber device, or some other suitable terminology.
  • the UE 104 may be referred to as a unit, a station, a terminal, or a client, among other examples.
  • the UE 104 may be referred to as an internet-of-things (IoT) device, an internet-of-everything (IoE) device, or machine-type communication (MTC) device, among other examples.
  • IoT internet-of-things
  • IoE internet-of-everything
  • MTC machine-type communication
  • a UE 104 may be stationary in the wireless communications system 100.
  • a UE 104 may be mobile in the wireless communications system 100.
  • the one or more UEs 104 may be devices in different forms or having different capabilities. Some examples of UEs 104 are illustrated in Fig. 1.
  • a UE 104 may be capable of communicating with various types of devices, such as the network entities 102, other UEs 104, or network equipment (e.g., the core network 106, the packet data network 108, a relay device, an integrated access and backhaul (IAB) node, or another network equipment) , as shown in Fig. 1.
  • a UE 104 may support communication with other network entities 102 or UEs 104, which may act as relays in the wireless communications system 100.
  • a UE 104 may also be able to support wireless communication directly with other UEs 104 over a communication link 114.
  • a UE 104 may support wireless communication directly with another UE 104 over a device-to-device (D2D) communication link.
  • D2D device-to-device
  • the communication link 114 may be referred to as a sidelink.
  • a UE 104 may support wireless communication directly with another UE 104 over a PC5 interface.
  • a network entity 102 may support communications with the core network 106, or with another network entity 102, or both.
  • a network entity 102 may interface with the core network 106 through one or more backhaul links 116 (e.g., via an S1, N2, N2, or another network interface) .
  • the network entities 102 may communicate with each other over the backhaul links 116 (e.g., via an X2, Xn, or another network interface) .
  • the network entities 102 may communicate with each other directly (e.g., between the network entities 102) .
  • the network entities 102 may communicate with each other or indirectly (e.g., via the core network 106) .
  • one or more network entities 102 may include subcomponents, such as an access network entity, which may be an example of an access node controller (ANC) .
  • An ANC may communicate with the one or more UEs 104 through one or more other access network transmission entities, which may be referred to as a radio heads, smart radio heads, or transmission-reception points (TRPs) .
  • TRPs transmission-reception points
  • the network entity 102 may be implemented as a satellite.
  • the network entity 102-1 may be implemented as a satellite.
  • network entity 102-1 is also referred to as a satellite 102-1.
  • the network entity 102-1 may have full or part of an eNB/gNB on board.
  • the communication link 110 between the satellite 102-1 and the UE 104, the communication link 116 between the satellite 102-1 and the network entity 102, and the communication link 116 between the satellite 102-1 and the core network 106 may be used for a non-terrestrial network (NTN) transparent mode.
  • NTN non-terrestrial network
  • the communication link 110 between the satellite 102-1 and the UE 104, and the communication link 116 between the satellite 102-1 (with a base station on board) and the core network 106 may be used for a NTN regenerative mode.
  • a network entity 102 may be configured in a disaggregated architecture, which may be configured to utilize a protocol stack physically or logically distributed among two or more network entities 102, such as an integrated access backhaul (IAB) network, an open radio access network (O-RAN) (e.g., a network configuration sponsored by the O-RAN Alliance) , or a virtualized RAN (vRAN) (e.g., a cloud RAN (C-RAN) ) .
  • IAB integrated access backhaul
  • O-RAN open radio access network
  • vRAN virtualized RAN
  • C-RAN cloud RAN
  • a network entity 102 may include one or more of a central unit (CU) , a distributed unit (DU) , a radio unit (RU) , a RAN intelligent controller (RIC) (e.g., a near-real time RIC (Near-RT RIC) , a non-real time RIC (Non-RT RIC) ) , a service management and orchestration (SMO) system, or any combination thereof.
  • CU central unit
  • DU distributed unit
  • RU radio unit
  • RIC RAN intelligent controller
  • SMO service management and orchestration
  • An RU may also be referred to as a radio head, a smart radio head, a remote radio head (RRH) , a remote radio unit (RRU) , or a transmission reception point (TRP) .
  • One or more components of the network entities 102 in a disaggregated RAN architecture may be co-located, or one or more components of the network entities 102 may be located in distributed locations (e.g., separate physical locations) .
  • one or more network entities 102 of a disaggregated RAN architecture may be implemented as virtual units (e.g., a virtual CU (VCU) , a virtual DU (VDU) , a virtual RU (VRU) ) .
  • VCU virtual CU
  • VDU virtual DU
  • VRU virtual RU
  • Split of functionality between a CU, a DU, and an RU may be flexible and may support different functionalities depending upon which functions (e.g., network layer functions, protocol layer functions, baseband functions, radio frequency functions, and any combinations thereof) are performed at a CU, a DU, or an RU.
  • functions e.g., network layer functions, protocol layer functions, baseband functions, radio frequency functions, and any combinations thereof
  • a functional split of a protocol stack may be employed between a CU and a DU such that the CU may support one or more layers of the protocol stack and the DU may support one or more different layers of the protocol stack.
  • the CU may host upper protocol layer (e.g., a layer 3 (L3) , a layer 2 (L2) ) functionality and signaling (e.g., radio resource control (RRC) , service data adaption protocol (SDAP) , packet data convergence protocol (PDCP) ) .
  • the CU may be connected to one or more DUs or RUs, and the one or more DUs or RUs may host lower protocol layers, such as a layer 1 (L1) (e.g., physical (PHY) layer) or an L2 (e.g., radio link control (RLC) layer, medium access control (MAC) layer) functionality and signaling, and may each be at least partially controlled by the CU 160.
  • L1 e.g., physical (PHY) layer
  • L2 e.g., radio link control (RLC) layer, medium access control (MAC) layer
  • a functional split of the protocol stack may be employed between a DU and an RU such that the DU may support one or more layers of the protocol stack and the RU may support one or more different layers of the protocol stack.
  • the DU may support one or multiple different cells (e.g., via one or more RUs) .
  • a functional split between a CU and a DU, or between a DU and an RU may be within a protocol layer (e.g., some functions for a protocol layer may be performed by one of a CU, a DU, or an RU, while other functions of the protocol layer are performed by a different one of the CU, the DU, or the RU) .
  • a CU may be functionally split further into CU control plane (CU-CP) and CU user plane (CU-UP) functions.
  • a CU may be connected to one or more DUs via a midhaul communication link (e.g., F1, F1-c, F1-u)
  • a DU may be connected to one or more RUs via a fronthaul communication link (e.g., open fronthaul (FH) interface)
  • FH open fronthaul
  • a midhaul communication link or a fronthaul communication link may be implemented in accordance with an interface (e.g., a channel) between layers of a protocol stack supported by respective network entities 102 that are in communication via such communication links.
  • the core network 106 may support user authentication, access authorization, tracking, connectivity, and other access, routing, or mobility functions.
  • the core network 106 may be an evolved packet core (EPC) , or a 5G core (5GC) , which may include a control plane entity that manages access and mobility (e.g., a mobility management entity (MME) , an access and mobility management functions (AMF) ) and a user plane entity that routes packets or interconnects to external networks (e.g., a serving gateway (S-GW) , a packet data network (PDN) gateway (P-GW) , or a user plane function (UPF) ) .
  • EPC evolved packet core
  • 5GC 5G core
  • MME mobility management entity
  • AMF access and mobility management functions
  • S-GW serving gateway
  • PDN gateway packet data network gateway
  • UPF user plane function
  • control plane entity may manage non-access stratum (NAS) functions, such as mobility, authentication, and bearer management (e.g., data bearers, signal bearers, etc. ) for the one or more UEs 104 served by the one or more network entities 102 associated with the core network 106.
  • NAS non-access stratum
  • the core network 106 may communicate with the packet data network 108 over one or more backhaul links 116 (e.g., via an S1, N2, N2, or another network interface) .
  • the packet data network 108 may include an application server 118.
  • one or more UEs 104 may communicate with the application server 118.
  • a UE 104 may establish a session (e.g., a protocol data unit (PDU) session, or the like) with the core network 106 via a network entity 102.
  • the core network 106 may route traffic (e.g., control information, data, and the like) between the UE 104 and the application server 118 using the established session (e.g., the established PDU session) .
  • the PDU session may be an example of a logical connection between the UE 104 and the core network 106 (e.g., one or more network functions of the core network 106) .
  • the network entities 102 and the UEs 104 may use resources of the wireless communications system 100 (e.g., time resources (e.g., symbols, slots, subframes, frames, or the like) or frequency resources (e.g., subcarriers, carriers) ) to perform various operations (e.g., wireless communications) .
  • the network entities 102 and the UEs 104 may support different resource structures.
  • the network entities 102 and the UEs 104 may support different frame structures.
  • the network entities 102 and the UEs 104 may support a single frame structure.
  • the network entities 102 and the UEs 104 may support various frame structures (i.e., multiple frame structures) .
  • the network entities 102 and the UEs 104 may support various frame structures based on one or more numerologies.
  • One or more numerologies may be supported in the wireless communications system 100, and a numerology may include a subcarrier spacing and a cyclic prefix.
  • a time interval of a resource may be organized according to frames (also referred to as radio frames) .
  • Each frame may have a duration, for example, a 10 millisecond (ms) duration.
  • each frame may include multiple subframes.
  • each frame may include 10 subframes, and each subframe may have a duration, for example, a 1 ms duration.
  • each frame may have the same duration.
  • each subframe of a frame may have the same duration.
  • a time interval of a resource may be organized according to slots.
  • a subframe may include a number (e.g., quantity) of slots.
  • the number of slots in each subframe may also depend on the one or more numerologies supported in the wireless communications system 100.
  • Each slot may include a number (e.g., quantity) of symbols (e.g., OFDM symbols) .
  • the number (e.g., quantity) of slots for a subframe may depend on a numerology.
  • a slot For a normal cyclic prefix, a slot may include 14 symbols.
  • a slot For an extended cyclic prefix (e.g., applicable for 60 kHz subcarrier spacing) , a slot may include 12 symbols.
  • an electromagnetic (EM) spectrum may be split, based on frequency or wavelength, into various classes, frequency bands, frequency channels, etc.
  • the wireless communications system 100 may support one or multiple operating frequency bands, such as frequency range designations FR1 (510 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) .
  • FR1 510 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
  • FR5 114.25 GHz
  • the network entities 102 and the UEs 104 may perform wireless communications over one or more of the operating frequency bands.
  • FR1 may be used by the network entities 102 and the UEs 104, among other equipment or devices for cellular communications traffic (e.g., control information, data) .
  • FR2 may be used by the network entities 102 and the UEs 104, among other equipment or devices for short-range, high data rate capabilities.
  • FR1 may be associated with one or multiple numerologies (e.g., at least three numerologies) .
  • FR2 may be associated with one or multiple numerologies (e.g., at least 2 numerologies) .
  • Fig. 2A illustrates an example single-cell scenario 200A for on-demand SSB/SIB1 in accordance with aspects of the present disclosure. It is assumed that a cell (e.g., non-anchor cell) supports NES.
  • a wake-up signal (WUS) configuration may be indicated to UE by an SSB/discovery reference signal (DRS) /a signal which can perform like a SSB or RS 211.
  • DRS discovery reference signal
  • the UE may transmit a WUS 212 in the cell. Then the UE may receive SIB1 213 from a network in the cell.
  • Fig. 2B illustrates an example multi-cell scenario 200B for on-demand SSB/SIB1 in accordance with aspects of the present disclosure.
  • a WUS configuration for a non-anchor cell supporting NES may be indicated to UE by an SSB 221 or a SIB1 222 or other SIB from an anchor cell.
  • the UE may transmit a WUS 223 in a non-anchor cell.
  • the UE may receive SIB1 224 from a network in the non-anchor cell.
  • Fig. 2B is merely an example of multi-cell scenarios.
  • UE may transmit, in an anchor cell, a WUS for requesting SIB1 of a non-anchor cell, and receive the SIB1 of the non-anchor cell in the non-anchor cell.
  • UE may transmit, in an anchor cell, a WUS for requesting SIB1 of a non-anchor cell, and receive the SIB1 of the non-anchor cell in the anchor cell.
  • any other suitable application scenarios may also be feasible.
  • Fig. 3 illustrates a signaling diagram illustrating an example process 300 that supports determination of a cell status in accordance with aspects of the present disclosure.
  • the process 300 may involve the UE 104 and the base station 102 in Fig. 1.
  • the process 300 will be described with reference to Fig. 1.
  • the UE 104 determines whether essential system information of a first cell is able to be acquired.
  • the essential system information may comprise at least one of the following: SSB, MIB, or SIB1.
  • the UE 104 determines a cell status of the first cell.
  • the UE 104 may determine the cell status of the first cell based on a result of the acquisition of the essential system information. In other words, the UE 104 may determine the cell status of the first cell based on determining whether the essential system information of the first cell is able to be acquired.
  • the UE 104 may determine the cell status of the first cell independently from the result of the acquisition of the essential system information. In other words, the UE 104 may not determine the cell status of the first cell based on determining whether the essential system information of the first cell is able to be acquired.
  • the UE 104 may determine that the essential system information is able to be acquired. Alternatively, if the first cell is the first type of cell, the UE 104 may determine that the essential system information is unable to be acquired.
  • the first type of cell may comprise one of the following: a Network Energy Saving (NES) cell, or a non-anchor cell.
  • NES Network Energy Saving
  • the first type of cell may comprise one of the following: an NES cell which supports on-demand transmission of the essential system information, or a non-anchor cell which supports on-demand transmission of the essential system information.
  • on-demand transmission of the essential system information may be used interchangeably with “on-demand essential system information” .
  • on-demand transmission of the essential system information or “on-demand essential system information” means that the essential system information is not broadcast periodically from a base station while the essential system information can be transmitted after a UE transmits a request for the essential system information to the base station.
  • the UE 104 may transmit a request for the essential system information to the base station 102. If the essential system information is received after transmitting the request for the essential system information, the UE 104 may determine that a request procedure for the essential system information is successfully completed. In other words, if the essential system information is received after transmitting the request for the essential system information, the UE 104 may determine that the essential system information is able to be acquired. If the essential system information is not received after transmitting the request for the essential system information, the UE 104 may determine that a request procedure for the essential system information fails or ends. In other words, if the essential system information is not received after transmitting the request for the essential system information, the UE 104 may determine that the essential system information is unable to be acquired.
  • the expression that “a request procedure for essential system information is successfully completed” may be used interchangeably with the expression that “the essential system information is able to be acquired” .
  • the expression that “a request procedure for essential system information fails or ends” may be used interchangeably with the expression that “the essential system information is unable to be acquired” .
  • a time duration or a time window may be configured or pre-defined for reception of the requested essential system information.
  • the UE 104 may determine that the essential system information is able to be acquired. If the essential system information is not received within the time duration or the time window, the UE 104 may determine that the essential system information is unable to be acquired.
  • a counter may be configured or pre-defined for reception of the requested essential system information. In such implementations, the counter may be used to count transmissions of the request for the essential system information.
  • the UE 104 may determine that the essential system information is able to be acquired. If the essential system information is not received after the one transmission of the request for the essential system information, the UE 104 may determine that the essential system information is unable to be acquired.
  • the UE 104 may determine that the essential system information is able to be acquired. If the essential system information is not received after the multiple transmissions of the request for the essential system information, the UE 104 may determine that the essential system information is unable to be acquired.
  • a timer may be configured or pre-defined for reception of the requested essential system information.
  • the UE 104 may start the timer after or upon transmission of the request for the essential system information. If the essential system information is received before the timer expires, the UE 104 may determine that the essential system information is able to be acquired. If the essential system information is not received before the timer expires, the UE 104 may determine that the essential system information is unable to be acquired.
  • the UE 104 may receive a first configuration for the time duration, the time window, the counter or the timer from the base station 102.
  • the UE 104 may receive, to the base station 102, a first configuration for the time duration, the time window, the counter or the timer together with a second configuration for an uplink signal associated with the request.
  • the uplink signal associated with the request may include but is not limited to a WUS signal.
  • the UE 104 may receive the first configuration for the time duration, the time window, the counter or the timer via the first cell or a second cell.
  • the second cell may comprise one of the following: an anchor cell associated with the first cell, or a neighbor cell associated with the first cell.
  • the UE 104 may receive the first configuration for the time duration, the time window, the counter or the timer when the UE 104 enters an idle state or an inactive state.
  • the UE 104 may determine whether the essential system information of the first cell is able to be acquired based on whether the UE transmits a request for the essential system information to a base station 102.
  • the UE 104 may determine that the essential system information is able to be acquired.
  • the UE 104 may determine that the essential system information is able to be acquired. Alternatively, if the UE 104 does not transmit the request for the essential system information, the UE 104 may determine that the essential system information is unable to be acquired.
  • the UE 104 may receive a first indication from the base station 102.
  • the first indication indicates that the essential system information is not to be transmitted.
  • the UE 104 can identify the base station 102 does not respond with the essential system information or the base station 102 does not or will not transmit the essential system information, for example, within a duration.
  • the UE 104 may determine that the essential system information is unable to be acquired based on the first indication.
  • the indication can be transmitted via physical downlink control channel (PDCCH) or random access response (RAR) or broadcast message.
  • PDCCH physical downlink control channel
  • RAR random access response
  • the UE may transmit a request for the essential system information to the base station 102 and the essential system information is received.
  • the UE 104 may receive, from the base station 102, a third configuration for a second time duration during which the received essential system information is valid. If the second time duration expires, the UE 104 may transmit a request for the essential system information to the base station 102.
  • the second time duration is also referred to as a valid time duration.
  • the third configuration for the valid time duration may be included in the acquired essential system information or is indicated by the anchor cell or neighbor cell associated with the first cell.
  • the UE 104 may not transmit a request for the essential system information to the base station 102.
  • the UE 104 may determine the essential system information is able or unable to be acquired.
  • the UE 104 may receive a second indication from the base station 102. The second indication indicates that the essential system information is to be transmitted.
  • the UE 104 may receive essential system information from the base station 102 based on the second indication.
  • the second indication may be transmitted via broadcast.
  • the second indication may be transmitted from an anchor cell or neighbor cell associated with an NES cell or the NES cell itself.
  • the second indication may be transmitted from a pre-defined or broadcasted common search space, for example, via a paging message.
  • the UE 104 may transmit a third indication to the base station 102 via a third cell.
  • the third indication indicates that the essential system information is unable to be acquired.
  • the third cell may comprise one of the following: an anchor cell associated with the first cell, a camping cell for the UE 104, a connected cell for the UE 104, or a serving cell for the UE 104.
  • the third indication may be transmitted via a Medium Access Control (MAC) Control Element (CE) or a radio resource control (RRC) message or uplink control information (UCI) .
  • MAC Medium Access Control
  • RRC radio resource control
  • UCI uplink control information
  • the third indication may be transmitted once the UE 104 determines that the essential system information is unable to be acquired.
  • the third indication may be transmitted when the UE 104 transits to RRC_CONNECTED state from an idle state and determines that the essential system information is unable to be acquired. For example, the UE 104 may transit to RRC_CONNECTED state for uplink or downlink data arrival.
  • the third indication may be transmitted via a SDT (small data transmission) procedure when the UE is in RRC_INACTIVE state or RRC_IDLE state. For example, the UE and the third cell support SDT.
  • the third indication may include an identifier of the first cell ID, such as a physical cell identifier (PCI) .
  • PCI physical cell identifier
  • MIB may indicate the cell status of the first cell is “barred” .
  • the UE 104 may consider the cell status of the first cell as “barred” or treat the first cell as if the cell status is “barred” .
  • the base station 1002 does not transmit the essential system information via the first cell
  • the UE 104 may consider the cell status of the first cell as “barred” or treat the first cell as if the cell status is “barred” .
  • the UE 104 may consider the cell status of the first cell as “barred” or treat the first cell as if the cell status is “barred” .
  • the UE 104 may consider the cell status of the first cell as “barred” or treat the first cell as if the cell status is “barred” .
  • the UE 104 may consider the cell status of the first cell as “barred” or treat the first cell as if the cell status is “barred” .
  • the cell status of the first cell indicated by MIB may include but is not limited to “barred” .
  • MIB may indicate the cell status of the first cell is “not barred” or “notbarred” .
  • the UE 104 may consider the cell status of the first cell as “barred” or treat the first cell as if the cell status is “barred” .
  • the UE 104 may consider the cell status of the first cell as “barred” or treat the first cell as if the cell status is “barred” .
  • the UE 104 may consider the cell status of the first cell as “barred” or treat the first cell as if the cell status is “barred” .
  • the UE 104 may consider the cell status of the first cell as “barred” or treat the first cell as if the cell status is “barred” .
  • the UE 104 may consider the cell status of the first cell as “barred” or treat the first cell as if the cell status is “barred” . For example, if the UE 104 does not transmit the request for the essential system information currently, the UE 104 may consider the cell status of the first cell as “barred” or treat the first cell as if the cell status is “barred” .
  • the UE 104 may consider the cell status of the first cell as “barred” or treat the first cell as if the cell status is “barred” . For example, if the UE 104 determines not to transmit the request for the essential system information within a time duration, the UE 104 may consider the cell status of the first cell as “barred” or treat the first cell as if the cell status is “barred” .
  • the UE 104 may consider the cell status of the first cell is not “barred” until the UE 104 determines that the essential system information is unable to be acquired.
  • the UE 104 may consider the cell status of the first cell is not “barred” until the UE 104 determines that the essential system information is unable to be acquired.
  • the UE 104 may consider the cell status of the first cell is not “barred” until the UE 104 acquires the essential system information which indicates the first cell is “barred” .
  • the UE 104 may consider the cell status of the first cell is not “barred” until the UE 104 acquires the essential system information which indicates the first cell is “barred” .
  • the UE 104 determines that the first cell performs on-demand transmission of the essential system information, the UE 104 does not consider the cell status of the first cell is “barred” .
  • the UE 104 determines that the first cell performs on-demand transmission of the essential system information, the UE 104 does not consider the cell status of the first cell is “barred” due to not requesting the essential system information.
  • the UE 104 determines that the first cell performs on-demand transmission of the essential system information, the UE 104 does not consider the cell status of the first cell is “barred” due to being unable to acquire the essential system information.
  • the UE 104 determines that the first cell performs on-demand transmission of the essential system information, the UE 104 does not consider the cell status of the first cell is “barred” before the UE 104 determines the essential system information is unable to be acquired.
  • the UE 104 determines that the first cell performs on-demand transmission of the essential system information, the UE 104 does not consider the cell status of the first cell is “barred” before the UE 104 acquires the essential system information indicating the cell status of the first cell is “barred” .
  • the UE 104 if the UE 104 determines that the first cell performs on-demand transmission of the essential system information, the UE 104 considers the cell status of the first cell is “barred” when the UE 104 determines that the essential system information is unable to be acquired.
  • the UE 104 determines that the first cell performs on-demand transmission of the essential system information, the UE 104 does not consider the cell status of the first cell is “barred” due to being unable to acquire the essential system information before the UE 104 determines that the essential system information is unable to be acquired.
  • the UE 104 if the UE 104 determines that the first cell performs on-demand transmission of the essential system information, the UE 104 considers the cell status of the first cell is “barred” due to being unable to acquire the essential system information when the UE 104 determines that the essential system information is unable to be acquired.
  • the UE 104 if the UE 104 requests essential system information and the UE 104 receives the essential system information from the base station 102 which does not indicate the cell status of the first cell is “barred” , the UE 104 does not consider the cell status of the first cell is “barred” .
  • the UE 104 if the UE 104 requests essential system information and the UE 104 receives the essential system information from the base station 102, the UE 104 does not consider the cell status of the first cell is “barred” .
  • the UE 104 determines that the first cell performs on-demand transmission of the essential system information and the UE 104 does not transmit the request for the essential system information to the first cell, the UE 104 does not consider the cell status of the first cell is “barred” .
  • the UE 104 determines that the first cell performs on-demand transmission of the essential system information and the UE 104 does not transmit the request for the essential system information to the first cell, the UE 104 does not consider the cell status of the first cell is “barred” due to being unable to acquire the essential system information.
  • the UE 104 may consider the cell status of the first cell as “barred” or treat the first cell as if the cell status is “barred” , the UE 104 may exclude the first cell as a candidate for cell selection or cell reselection for up to 300 seconds or for a third time duration. In turn, the UE 104 shall or may select a further cell on the same frequency if the selection criteria are fulfilled.
  • the UE 104 may exclude the first cell as a candidate for cell selection or cell reselection for up to 300 seconds or for a third time duration.
  • the UE 104 may exclude the first cell as a candidate for cell selection or cell reselection for up to 300 seconds or for the third time duration.
  • the UE 104 may exclude the first cell as a candidate for cell selection or cell reselection for up to 300 seconds or for the third time duration.
  • the third time duration is associated with NES.
  • the third time duration may be specific to one or more NES scenarios.
  • the UE 104 may consider cell access barring alleviation for the first cell.
  • the UE 104 may consider cell access barring alleviation for the first cell.
  • the configuration for the first cell may comprise a second configuration for an uplink signal.
  • the uplink signal is associated with a request for the essential system information.
  • the second configuration for the uplink signal may comprise a configuration for transmitting the request for the essential system information.
  • the UE 104 may receive the configuration for the first cell from a fourth cell where the UE 104 camps on.
  • the fourth cell may comprise an anchor cell or a neighbor cell associated with the first cell.
  • the UE 104 may consider cell access barring alleviation for the first cell.
  • the UE 104 may consider cell access barring alleviation for the first cell.
  • the UE 104 considers the cell access barring alleviation if the first cell is to be treated as if the cell status of the first cell is “barred” due to being unable to acquire the essential system information and the essential system information of the cell is on-demand essential system information or the essential system information can be requested.
  • the UE 104 in RRC_CONNECTED state may be configured with at least one SCell which does not transmit the essential system information, for example no SSB is transmitted on the SCell.
  • the UE 104 may be configured with a reference cell for each of the at least one SCell which does not transmit the essential system information.
  • an SCell which does not transmit the essential system information is also referred to as “a second type of SCell” .
  • the configuration of the second type of SCell can associate UL transmission on the second type of SCell with the reference cell or with the reference signal or essential system information of the reference cell.
  • the configuration of the second type of SCell can associate random access channel (RACH) resources configured to the second type of SCell with the reference signal or essential system information of the reference cell.
  • RACH random access channel
  • the configuration of the second type of SCell can associate physical downlink control channel (PUSCH) or sounding reference signal (SRS) path loss estimation of the second type of SCell with the reference signal or essential system information of the reference cell.
  • PUSCH physical downlink control channel
  • SRS sounding reference signal
  • the configuration of the second type of SCell may comprise a configuration of the spatial relation between a reference signal or essential system information of the reference cell and PUCCH/SRS on the second type of SCell.
  • the definition of the SSB field in a configuration of RACH may be extended as shown in Table 1.
  • the serving cell may comprise the second type of SCell.
  • the configuration of RACH may comprise a field “ssb-perRACH-OccasionAndCB-PreamblesPerSSB” .
  • the meaning of this field is twofold: the CHOICE conveys the information about the number of SSBs per RACH occasion. Value oneEighth corresponds to one SSB associated with 8 RACH occasions, value oneFourth corresponds to one SSB associated with 4 RACH occasions, and so on.
  • the ENUMERATED part indicates the number of Contention Based preambles per SSB. Value n4 corresponds to 4 Contention Based preambles per SSB, value n8 corresponds to 8 Contention Based preambles per SSB, and so on.
  • the total number of CB preambles in a RACH occasion is given by CB-preambles-per-SSB *max (1, SSB-per-rach-occasion) .
  • the SSB is transmitted by this serving cell or by the reference cell of the serving cell.
  • the configuration of RACH may comprise a field “ssb-perRACH-Occasion” .
  • the ssb-perRACH-Occasion indicates number of SSBs per RACH occasion.
  • the SSB is transmitted by this serving cell or by the reference cell of the serving cell.
  • a dedicated IE may be added to the configuration of RACH. It can be the common configuration or the dedicated configuration.
  • the IE indicates the RACH resource, for example, RACH occasion associated with the SSB transmitted by the reference cell of the serving cell.
  • the second type of SCell shall be configured in the same Timing Advance Group (TAG) as the configured reference cell.
  • TAG Timing Advance Group
  • the second type of SCell is deactivated if or when the reference cell is deactivated.
  • the second type of SCell is deactivated if or when the reference cell is deactivated and there is no reconfiguration of a reference cell.
  • the reference cell may be another SCell or primary second cell (PSCell) .
  • Fig. 4 illustrates an example of a device 400 that supports determination of a cell status in accordance with aspects of the present disclosure.
  • the device 400 may be an example of a base station 102 or a UE 104 as described herein.
  • the device 400 may support wireless communication with one or more network entities 102, UEs 104, or any combination thereof.
  • the device 400 may include components for bi-directional communications including components for transmitting and receiving communications, such as a processor 402, a memory 404, a transceiver 406, and, optionally, an I/O controller 408. These components may be in electronic communication or otherwise coupled (e.g., operatively, communicatively, functionally, electronically, electrically) via one or more interfaces (e.g., buses) .
  • the processor 402, the memory 404, the transceiver 406, or various combinations thereof or various components thereof may be examples of means for performing various aspects of the present disclosure as described herein.
  • the processor 402, the memory 404, the transceiver 406, or various combinations or components thereof may support a method for performing one or more of the operations described herein.
  • the processor 402, the memory 404, the transceiver 406, or various combinations or components thereof may be implemented in hardware (e.g., in communications management circuitry) .
  • the hardware may include a processor, a digital signal processor (DSP) , an application-specific integrated circuit (ASIC) , a field-programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic, discrete hardware components, or any combination thereof configured as or otherwise supporting a means for performing the functions described in the present disclosure.
  • the processor 402 and the memory 404 coupled with the processor 402 may be configured to perform one or more of the functions described herein (e.g., executing, by the processor 402, instructions stored in the memory 404) .
  • the processor 402 may support wireless communication at the device 400 in accordance with examples as disclosed herein.
  • the processor 402 may be configured to operable to support a means for performing the following: determining whether essential system information of a first cell is able to be acquired; and determining a cell status of the first cell based on a result of the acquisition of the essential system information.
  • the processor 402 may include an intelligent hardware device (e.g., a general-purpose processor, a DSP, a CPU, a microcontroller, an ASIC, an FPGA, a programmable logic device, a discrete gate or transistor logic component, a discrete hardware component, or any combination thereof) .
  • the processor 402 may be configured to operate a memory array using a memory controller.
  • a memory controller may be integrated into the processor 402.
  • the processor 402 may be configured to execute computer-readable instructions stored in a memory (e.g., the memory 404) to cause the device 400 to perform various functions of the present disclosure.
  • the memory 404 may include random access memory (RAM) and read-only memory (ROM) .
  • the memory 404 may store computer-readable, computer-executable code including instructions that, when executed by the processor 402 cause the device 400 to perform 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.
  • the code may not be directly executable by the processor 402 but may cause a computer (e.g., when compiled and executed) to perform functions described herein.
  • the memory 404 may include, among other things, a basic I/O system (BIOS) which may control basic hardware or software operation such as the interaction with peripheral components or devices.
  • BIOS basic I/O system
  • the I/O controller 408 may manage input and output signals for the device 400.
  • the I/O controller 408 may also manage peripherals not integrated into the device M02.
  • the I/O controller 408 may represent a physical connection or port to an external peripheral.
  • the I/O controller 408 may utilize an operating system such as or another known operating system.
  • the I/O controller 408 may be implemented as part of a processor, such as the processor 406.
  • a user may interact with the device 400 via the I/O controller 408 or via hardware components controlled by the I/O controller 408.
  • the device 400 may include a single antenna 410. However, in some other implementations, the device 400 may have more than one antenna 410 (i.e., multiple antennas) , including multiple antenna panels or antenna arrays, which may be capable of concurrently transmitting or receiving multiple wireless transmissions.
  • the transceiver 406 may communicate bi-directionally, via the one or more antennas 410, wired, or wireless links as described herein.
  • the transceiver 406 may represent a wireless transceiver and may communicate bi-directionally with another wireless transceiver.
  • the transceiver 406 may also include a modem to modulate the packets, to provide the modulated packets to one or more antennas 410 for transmission, and to demodulate packets received from the one or more antennas 410.
  • the transceiver 406 may include one or more transmit chains, one or more receive chains, or a combination thereof.
  • a transmit chain may 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.
  • the 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 like 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 the wireless medium.
  • the transmit chain may also include one or more antennas 410 for transmitting the amplified signal into the air or wireless medium.
  • a receive chain may be configured to receive signals (e.g., control information, data, packets) over a wireless medium.
  • the receive chain may include one or more antennas 410 for receive the signal over the air or wireless medium.
  • the receive chain may include at least one amplifier (e.g., a low-noise amplifier (LNA) ) configured to amplify the received signal.
  • the receive chain may include at least one demodulator configured to demodulate the receive signal and obtain the transmitted data by reversing the modulation technique applied during transmission of the signal.
  • the receive chain may include at least one decoder for decoding the processing the demodulated signal to receive the transmitted data.
  • Fig. 5 illustrates an example of a processor 500 that supports determination of a cell status in accordance with aspects of the present disclosure.
  • the processor 500 may be an example of a processor configured to perform various operations in accordance with examples as described herein.
  • the processor 500 may include a controller 502 configured to perform various operations in accordance with examples as described herein.
  • the processor 500 may optionally include at least one memory 504, such as L1/L2/L3 cache. Additionally, or alternatively, the processor 500 may optionally include one or more arithmetic-logic units (ALUs) 506.
  • ALUs arithmetic-logic units
  • One or more of these components may be in electronic communication or otherwise coupled (e.g., operatively, communicatively, functionally, electronically, electrically) via one or more interfaces (e.g., buses) .
  • the processor 500 may be a processor chipset and include a protocol stack (e.g., a software stack) executed by the processor chipset to perform various operations (e.g., receiving, obtaining, retrieving, transmitting, outputting, forwarding, storing, determining, identifying, accessing, writing, reading) in accordance with examples as described herein.
  • a protocol stack e.g., a software stack
  • operations e.g., receiving, obtaining, retrieving, transmitting, outputting, forwarding, storing, determining, identifying, accessing, writing, reading
  • the processor chipset may include one or more cores, one or more caches (e.g., memory local to or included in the processor chipset (e.g., the processor 500) 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) , and others) .
  • RAM random access memory
  • ROM read-only memory
  • DRAM dynamic RAM
  • SDRAM synchronous dynamic RAM
  • SRAM static RAM
  • FeRAM ferroelectric RAM
  • MRAM magnetic RAM
  • RRAM resistive RAM
  • PCM phase change memory
  • the controller 502 may be configured to manage and coordinate various operations (e.g., signaling, receiving, obtaining, retrieving, transmitting, outputting, forwarding, storing, determining, identifying, accessing, writing, reading) of the processor 500 to cause the processor 500 to support various operations in accordance with examples as described herein.
  • the controller 502 may operate as a control unit of the processor 500, generating control signals that manage the operation of various components of the processor 500. These control signals include enabling or disabling functional units, selecting data paths, initiating memory access, and coordinating timing of operations.
  • the controller 502 may be configured to fetch (e.g., obtain, retrieve, receive) instructions from the memory 504 and determine subsequent instruction (s) to be executed to cause the processor 500 to support various operations in accordance with examples as described herein.
  • the controller 502 may be configured to track memory address of instructions associated with the memory 504.
  • the controller 502 may be configured to decode instructions to determine the operation to be performed and the operands involved.
  • the controller 502 may be configured to interpret the instruction and determine control signals to be output to other components of the processor 500 to cause the processor 500 to support various operations in accordance with examples as described herein.
  • the controller 502 may be configured to manage flow of data within the processor 500.
  • the controller 502 may be configured to control transfer of data between registers, arithmetic logic units (ALUs) , and other functional units of the processor 500.
  • ALUs arithmetic logic units
  • the memory 504 may include one or more caches (e.g., memory local to or included in the processor 500 or other memory, such RAM, ROM, DRAM, SDRAM, SRAM, MRAM, flash memory, etc.
  • the memory 504 may reside within or on a processor chipset (e.g., local to the processor 500) .
  • the memory 504 may reside external to the processor chipset (e.g., remote to the processor 500) .
  • the memory 504 may store computer-readable, computer-executable code including instructions that, when executed by the processor 500, cause the processor 500 to perform 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.
  • the controller 502 and/or the processor 500 may be configured to execute computer-readable instructions stored in the memory 504 to cause the processor 500 to perform various functions.
  • the processor 500 and/or the controller 502 may be coupled with or to the memory 504, the processor 500, the controller 502, and the memory 504 may be configured to perform various functions described herein.
  • the processor 500 may include multiple processors and the memory 504 may include multiple memories. One or more of the multiple processors may be coupled with one or more of the multiple memories, which may, individually or collectively, be configured to perform various functions herein.
  • the one or more ALUs 506 may be configured to support various operations in accordance with examples as described herein.
  • the one or more ALUs 506 may reside within or on a processor chipset (e.g., the processor 500) .
  • the one or more ALUs 506 may reside external to the processor chipset (e.g., the processor 500) .
  • One or more ALUs 506 may perform one or more computations such as addition, subtraction, multiplication, and division on data.
  • one or more ALUs 506 may receive input operands and an operation code, which determines an operation to be executed.
  • One or more ALUs 506 be configured with a variety of logical and arithmetic circuits, including adders, subtractors, shifters, and logic gates, to process and manipulate the data according to the operation. Additionally, or alternatively, the one or more ALUs 506 may support logical operations such as AND, OR, exclusive-OR (XOR) , not-OR (NOR) , and not-AND (NAND) , enabling the one or more ALUs 506 to handle conditional operations, comparisons, and bitwise operations.
  • logical operations such as AND, OR, exclusive-OR (XOR) , not-OR (NOR) , and not-AND (NAND) , enabling the one or more ALUs 506 to handle conditional operations, comparisons, and bitwise operations.
  • the processor 500 may support wireless communication in accordance with examples as disclosed herein.
  • the processor 500 may be configured to operable to support a means for performing the following: determining whether essential system information of a first cell is able to be acquired; and determining a cell status of the first cell based on a result of the acquisition of the essential system information.
  • Fig. 6 illustrates a flowchart of a method 600 that supports determination of a cell status in accordance with aspects of the present disclosure.
  • the operations of the method 600 may be implemented by a device or its components as described herein.
  • the operations of the method 600 may be performed by a base station 102 as described herein.
  • the device may execute a set of instructions to control the function elements of the device to perform the described functions. Additionally, or alternatively, the device may perform aspects of the described functions using special-purpose hardware.
  • the method may include receiving, from a UE, a request for essential system information.
  • the operations of 610 may be performed in accordance with examples as described herein. In some implementations, aspects of the operations of 610 may be performed by a device as described with reference to Fig. 1.
  • the method may include transmitting the essential system information to the UE within a time duration after receiving the request.
  • the operations of 620 may be performed in accordance with examples as described herein. In some implementations, aspects of the operations of 620 may be performed by a device as described with reference to Fig. 1.
  • a general-purpose processor may be a microprocessor, but in the alternative, the processor may be any processor, controller, microcontroller, or state machine.
  • a 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 in conjunction with a DSP core, or any other such configuration.
  • the functions described herein may be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software executed by a processor, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Other examples and implementations are within the scope of the disclosure and appended claims. For example, due to the nature of software, functions described herein may be implemented using software executed by a processor, hardware, firmware, hardwiring, or combinations of any of these. Features implementing functions may also be physically located at various positions, including being distributed such that portions of functions are implemented at different physical locations.
  • Computer-readable media includes both non-transitory computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another.
  • a non-transitory storage medium may be any available medium that may be accessed by a general-purpose or special-purpose computer.
  • non-transitory computer-readable media may include RAM, ROM, electrically erasable programmable ROM (EEPROM) , flash memory, compact disk (CD) ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other non-transitory medium that may be used to carry or store desired program code means in the form of instructions or data structures and that may be accessed by a general-purpose or special-purpose computer, or a general-purpose or special-purpose processor.
  • an article “a” before an element is unrestricted and understood to refer to “at least one” of those elements or “one or more” of those elements.
  • the terms “a, ” “at least one, ” “one or more, ” and “at least one of one or more” may be interchangeable.
  • a list of items 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) .
  • the phrase “based on” shall not be construed as a reference to a closed set of conditions. For example, an example step that is described as “based on condition A” may be based on both a condition A and a condition B without departing from the scope of the present disclosure.
  • the phrase “based on” shall be construed in the same manner as the phrase “based at least in part on.
  • a “set” may include one or more elements.

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  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Divers aspects de la présente divulgation concernent la détermination d'un état de cellule. Selon un aspect, un équipement utilisateur détermine si des informations de système essentielles d'une première cellule peuvent être acquises. À son tour, l'équipement utilisateur détermine un état de cellule de la première cellule.
PCT/CN2023/129441 2023-11-02 2023-11-02 Détermination d'un état de cellule Pending WO2024169254A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2023/129441 WO2024169254A1 (fr) 2023-11-02 2023-11-02 Détermination d'un état de cellule

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2023/129441 WO2024169254A1 (fr) 2023-11-02 2023-11-02 Détermination d'un état de cellule

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WO2024169254A1 true WO2024169254A1 (fr) 2024-08-22

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Citations (4)

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Publication number Priority date Publication date Assignee Title
CN109479238A (zh) * 2016-07-22 2019-03-15 索尼公司 用于按需传输系统信息的移动电信系统方法、用户装备、以及基站
CN110024442A (zh) * 2016-11-04 2019-07-16 三星电子株式会社 在无线通信系统中提供最小系统信息的方法和用户设备
US20200260364A1 (en) * 2017-08-09 2020-08-13 Samsung Electronics Co., Ltd Apparatus and method for transmitting and receiving system information in wireless communication system
US20220361087A1 (en) * 2017-05-02 2022-11-10 Lg Electronics Inc. Method and apparatus for obtaining system information

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109479238A (zh) * 2016-07-22 2019-03-15 索尼公司 用于按需传输系统信息的移动电信系统方法、用户装备、以及基站
CN110024442A (zh) * 2016-11-04 2019-07-16 三星电子株式会社 在无线通信系统中提供最小系统信息的方法和用户设备
US20220361087A1 (en) * 2017-05-02 2022-11-10 Lg Electronics Inc. Method and apparatus for obtaining system information
US20200260364A1 (en) * 2017-08-09 2020-08-13 Samsung Electronics Co., Ltd Apparatus and method for transmitting and receiving system information in wireless communication system

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