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    Collision handling of synchronization signal (SS) blocks
    52.
    发明授权
    Collision handling of synchronization signal (SS) blocks 有权

    公开(公告)号：US11304157B2

    公开(公告)日：2022-04-12

    申请号：US16625131

    申请日：2018-06-20

    Applicant: Apple Inc.

    Inventor： Alexei Vladimirovich Davydov ,  Avik Sengupta ,  Gang Xiong ,  Hong He ,  Yongjun Kwak ,  Debdeep Chatterjee ,  Dae Won Lee

    IPC: H04J11/00 ,  H04W56/00 ,  H04W72/04 ,  H04L5/00 ,  H04L1/00

    Abstract: A user equipment (UE) can include processing circuitry configured to decode synchronization information within a synchronization signal (SS) block, the SS block received within a SS burst set and occupying a subset of a plurality of Orthogonal Frequency Division Multiplexing (OFDM) symbols within a slot. At least one of the symbols in the subset coincides with a pre-defined symbol location associated with a demodulation reference signal (DM-RS) of a physical downlink shared channel (PDSCH). A synchronization procedure can be performed with a next generation Node-B (gNB) based on the synchronization information within the SS block. The DM-RS can be detected within the slot, where the DM-RS starts at a symbol location that is shifted from the pre-defined symbol location and following the subset of symbols. Downlink data received via the PDSCH is decoded based on the detected DM-RS.

    Enhanced Cell Search and System Information Acquisition
    53.
    发明申请
    Enhanced Cell Search and System Information Acquisition 有权

    公开(公告)号：US20220006585A1

    公开(公告)日：2022-01-06

    申请号：US17397849

    申请日：2021-08-09

    Applicant: Apple Inc.

    Inventor： Salvatore Talarico ,  Qiaoyang Ye ,  Debdeep Chatterjee ,  Seunghee Han ,  Dae Won Lee

    IPC: H04L5/00 ,  H04W4/70 ,  H04W76/27 ,  H04J11/00 ,  H04L27/26 ,  H04W56/00

    Abstract: Embodiments of efeMTC synchronization signals for enhanced cell search and enhanced system information acquisition are described. In some embodiments, an apparatus of a base station (BS) is configured to generate a length-x sequence for an efeMTC synchronization signal, the length-x sequence configured for repetition in frequency domain within 6 physical resource blocks (PRB). In some embodiments, to generate the length-x sequence, the BS may be configured to select any one index of the set of root indices {1, 2, 63}, excluding the root indices 25, 29 and 34, to correspond to a different physical-layer cell identity (PCID). In some embodiments, the BS may be configured to encode RRC signaling to include a System Information Block (SIB) comprising configuration information for transmission of the efeMTC synchronization signal, and transmit the length-x sequence as the efeMTC synchronization signal in frequency resources according to the SIB.

    Enhanced cell search and system information acquisition
    56.
    发明授权
    Enhanced cell search and system information acquisition 有权

    公开(公告)号：US11088797B2

    公开(公告)日：2021-08-10

    申请号：US16496363

    申请日：2018-03-20

    Applicant: Apple Inc.

    Inventor： Salvatore Talarico ,  Qiaoyang Ye ,  Debdeep Chatterjee ,  Seunghee Han ,  Dae Won Lee

    IPC: H04L5/00 ,  H04W4/70 ,  H04W76/27 ,  H04J11/00 ,  H04L27/26 ,  H04W56/00

    Abstract: Embodiments of efeMTC synchronization signals for enhanced cell search and enhanced system information acquisition are described. In some embodiments, an apparatus of a base station (BS) is configured to generate a length-x sequence for an efeMTC synchronization signal, the length-x sequence configured for repetition in frequency domain within 6 physical resource blocks (PRB). In some embodiments, to generate the length-x sequence, the BS may be configured to select any one index of the set of root indices {1, 2, . . . , 63}, excluding the root indices 25, 29 and 34, to correspond to a different physical-layer cell identity (PCID). In some embodiments, the BS may be configured to encode RRC signaling to include a System Information Block (SIB) comprising configuration information for transmission of the efeMTC synchronization signal, and transmit the length-x sequence as the efeMTC synchronization signal in frequency resources according to the SIB.

    Method and apparatus for radio link monitoring
    57.
    发明授权
    Method and apparatus for radio link monitoring 有权

    公开(公告)号：US10985848B2

    公开(公告)日：2021-04-20

    申请号：US16483982

    申请日：2018-05-15

    Applicant: Apple Inc.

    Inventor： Yushu Zhang ,  Wook Bong Lee ,  Dae Won Lee ,  Seunghee Han ,  Alexei Davydov ,  Guotong Wang ,  Gregory Morozov

    IPC: H04B17/327 ,  H04B7/0413 ,  H04B7/06 ,  H04B7/08

    Abstract: Provided herein are method and apparatus for perform radio link monitoring (RLM) based on a Reference signal (RS). An embodiment provides a user Equipment (UE) comprising circuitry configured to: decode a Reference Signal (RS) received from an access node; and determine beam quality for one or more beam pair links (BPLs) of the RS between the UE and the access node based on the decoded RS, wherein each of the BPLs comprises a transmit (Tx) beam of the access node and a receive (Rx) beam of the UE. Also provided is a procedure of RLM. At least some embodiments allow for beam recovery request for UE beam refinement, and allow for determining whether radio link failure (RLF) occurs.

    Physical Random Access Channel (Prach) Format Configuration
    59.
    发明申请
    Physical Random Access Channel (Prach) Format Configuration 审中-公开

    公开(公告)号：US20200267803A1

    公开(公告)日：2020-08-20

    申请号：US16645534

    申请日：2018-09-10

    Applicant: Apple Inc.

    Inventor： Yongjun Kwak ,  Dae Won Lee ,  Gregory Vladimirovich Morozov ,  Seunghee Han

    IPC: H04W88/06 ,  H04W74/08 ,  H04W76/11 ,  H04L5/00 ,  H04L27/26

    Abstract: A user equipment (UE) can include processing circuitry configured to decode system information block (SIB) information including a PRACH configuration index. The PRACH configuration index indicates at least a first preamble format and a second preamble format. A PRACH preamble is encoded for transmission to a base station within a PRACH resource indicated by the PRACH configuration index. The PRACH preamble is associated with the first preamble format or the second preamble format. A random access channel response (RAR) message from the base station is decoded. The RAR message includes an uplink grant for scheduling a physical uplink shared channel (PUSCH) transmission. Data is encoded for transmission on the PUSCH based on the uplink grant. The PRACH resource comprises a plurality of PRACH occasions, where the PRACH preamble is transmitted within a PRACH occasion from the plurality of PRACH occasions with a starting symbol indicated by the PRACH configuration index.

    Mobile Communication System, Mobile Device, User Equipment, Network Node, NodeB, Circuits, Apparatuses, Methods, Machine Readable Media and Computer Programs for Mobile Devices, User Equipment, Network Nodes, and NodeBs
    60.
    发明申请
    Mobile Communication System, Mobile Device, User Equipment, Network Node, NodeB, Circuits, Apparatuses, Methods, Machine Readable Media and Computer Programs for Mobile Devices, User Equipment, Network Nodes, and NodeBs 审中-公开

    公开(公告)号：US20200213052A1

    公开(公告)日：2020-07-02

    申请号：US16637936

    申请日：2018-08-09

    Applicant: Apple Inc.

    Inventor： Qian Li ,  Dae Won Lee ,  Dawei Ying ,  Song Noh ,  Hassan Ghozlan ,  Geng Wu ,  Honglei Miao

    IPC: H04L5/00 ,  H04W72/04 ,  H04W24/10

    Abstract: Examples provide a mobile communication system, a mobile device, user equipment, a network node, a NodeB, circuits, apparatuses, methods, machine readable media and computer programs for mobile device, user equipment, network nodes, NodeBs. An apparatus (10) for a user equipment, UE (100), configured to communicate in a mobile communication system (400) comprises one or more interfaces (12) configured to communicate within the mobile communication system (400). The apparatus (10) comprises a control module (14) configured to control the one or more interfaces (12). Then control module (14) is configured to process reference signal configuration information received by the one or more interfaces (12). The reference signal configuration information comprises information on a reference signal radio configuration information resource, the reference signal radio resource specifying at least one reference signal from a group of two or more reference signals. The two or more reference signals differ in at least one element of the group of a time-frequency resource, a sequence, and a cyclic shift. The control module (14) is configured to enable measurements based on the at least one reference signal.

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