Transmission of synchronization signals

    公开(公告)号:US11489608B2

    公开(公告)日:2022-11-01

    申请号:US16490884

    申请日:2018-03-02

    Applicant: APPLE INC.

    Abstract: Technology for a Next Generation NodeB (gNB) operable to encode a primary synchronization signal for transmission to a user equipment (UE) is disclosed. The gNB can identify a sequence d(n) for a primary synchronization signal. The sequence d(n) can be defined by: d(5 n)=1.2s(n), where s(n) is a maximum run length sequence (msequence) and s(n) is provided as s(n+7)=(s(n +4)+s(n)) mod 2, where 0.n.127. The gNB can generate the primary synchronization signal based on the sequence d(n). The gNB can encode the primary synchronization signal for transmission to the UE.

    CONFIGURABILITY AND SIGNALING FOR HALF-TONE SHIFT

    公开(公告)号:US20220239542A1

    公开(公告)日:2022-07-28

    申请号:US17717890

    申请日:2022-04-11

    Applicant: Apple Inc.

    Abstract: Described is an apparatus of a User Equipment (UE) operable to communicate with an Evolved Node-B (eNB) on a wireless network. The apparatus may comprise a first circuitry, a second circuitry, and a third circuitry. The first circuitry may be operable to process a configuration transmission carrying a half-tone shifting indicator. The second circuitry may be operable to select one or more subcarrier frequencies for Uplink (UL) transmission based on the half-tone shifting indicator. The third circuitry may be operable to generate a UL transmission for the one or more subcarrier frequencies. The half-tone shifting indicator may have a first value indicating application of a half-subcarrier offset, and a second value indicating no application of the half-subcarrier offset.

    Scrambling of physical broadcast channel (PBCH)

    公开(公告)号:US11375475B2

    公开(公告)日:2022-06-28

    申请号:US16632416

    申请日:2018-07-26

    Applicant: Apple Inc.

    Abstract: A user equipment (UE) can include processing circuitry configured to decode physical broadcast channel (PBCH) information received from a base station (BS). The decoded PBCH information includes a scrambled PBCH payload and an unscrambled bit sequence. A scrambling sequence is generated based on time information signaling within the unscrambled bit sequence. The scrambled PBCH payload is de-scrambled using the scrambling sequence, to obtain master information block (MIB) information. System information block (SIB) information is decoded based on the MIB information. The decoded PBCH information includes cyclic redundancy check (CRC) information. The scrambled PBCH payload and the unscrambled bit sequence can be verified based on the CRC information. The time information signaling includes one or more bits of a system frame number (SFN).

    Interference coordination for networks serving aerial vehicles

    公开(公告)号:US11297691B2

    公开(公告)日:2022-04-05

    申请号:US16603171

    申请日:2018-05-01

    Applicant: Apple Inc.

    Abstract: Embodiments of interference coordination for aerial vehicle user equipment (UE) are described. In some embodiments, a base station (BS) is configured to select a subset of time-frequency resources dedicated for use in serving aerial vehicle UEs and communicate with the aerial vehicle UEs via the subset of time-frequency resources. In some embodiments, the BS may transmit signaling to a neighbor BS that indicates the BS has dedicated the subset of time-frequency resources for serving aerial vehicle UEs and the subset of time-frequency resources to be used. The BS may receive an indication from the neighbor BS that a neighbor BS is to dedicate the subset of time-frequency resources to serve aerial vehicle UE, and based on the indication, the BS may reduce transmission activities in the subset of time-frequency resources, including refraining from transmitting or reducing an amount of information or power level of signaling to the aerial vehicle UEs.

    Control resource block set search space design

    公开(公告)号:US11265968B2

    公开(公告)日:2022-03-01

    申请号:US16473558

    申请日:2018-02-16

    Applicant: Apple Inc.

    Abstract: Apparatuses, methods and storage media associated with components and implementations of wireless communication networks, and/or portions thereof, are disclosed herein. In embodiments, an apparatus for a next generation NodeB (gNB) may include processing circuitry to determine a number of resource element groups (REGs) to be included in a resource element group bundle (REGB) for a new radio physical downlink control channel (NR-PDCCH), and generate a signal that indicates the number of the REGs. The gNB may further include encoding circuitry, coupled with the processing circuitry, to encode the signal for transmission to a user equipment (UE). Other embodiments may be disclosed throughout.

    Contention window size adaptation
    48.
    发明授权

    公开(公告)号:US11251907B2

    公开(公告)日:2022-02-15

    申请号:US16921357

    申请日:2020-07-06

    Applicant: Apple Inc.

    Abstract: Techniques for contention window size (CWS) adaptation (CWSA) are discussed. One example apparatus can comprise a processor that can receive HARQ messages UEs in response to PDSCH transmissions in one or more reference subframes. The HARQ messages can comprise HARQ-ACK values that denote a HARQ-ACK state for a transport block associated with License Assisted Access (LAA) operation, wherein each of the HARQ-ACK states is one of a DTX state, an ACK state, a NACK state, or an “any” state. The processor can also; determine a metric value for each of the HARQ-ACK states; calculate a CWS adjustment metric based on the determined metric values; increase a CWS to a next higher allowed value when the CWS adjustment metric is greater than or equal to a threshold; and reset the CWS to a minimum allowed value when the CWS adjustment metric is less than the threshold.

    Synchronization signal transmission techniques

    公开(公告)号:US11121768B2

    公开(公告)日:2021-09-14

    申请号:US16349960

    申请日:2018-01-04

    Applicant: APPLE INC.

    Abstract: Systems and methods for synchronizing communications between a User Equipment (UE) and Base Station (BS) using a synchronization signal structure. The synchronization signal structure can include a sequence of Synchronization Signals (SS) 5 including repetitions of a synchronization signal burst set. The synchronization signal burst set can include a plurality of synchronization signal bursts. The synchronization signal bursts can include a plurality of synchronization signal blocks, wherein the synchronization signal blocks can include a plurality of Synchronization Signals (SS).

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